Combined FFC flexible flat cable

Abstract

The application relates to the technical field of flexible flat cable, and particularly relates to a combined FFC flexible flat cable; the combined FFC flexible flat cable comprises a flexible flat cable main body and an auxiliary mechanism, the auxiliary mechanism comprises a mounting seat, a main connector, a top plate, a guide cylinder, an auxiliary connector, a pin and a limiting device, the main connector is mounted on the mounting seat, the end of a core wire in the flexible flat cable main body is welded on the main connector, the top plate is mounted to seal and limit, the auxiliary connector is inserted and mounted on the main connector and is fixed through bolts, finally, the auxiliary connector is connected with a mating connector matched with the auxiliary connector; in the application, the auxiliary connector can be detached from the main connector, the core wire in the flexible flat cable main body can be separated from the guide cylinder through tin soldering, so that in subsequent use, only the damaged components can be replaced through the separated connector structure, the intact components can be continuously used without replacement, and then the structure of the connector is optimized, replacement of the damaged connector is facilitated, and the subsequent use cost can be reduced.

Description

Technical Field

[0001] This invention relates to the field of flexible flat cable technology, and in particular to a combined FFC flexible flat cable. Background Technology

[0002] FFC flexible flat cables are typically made by sandwiching multiple parallel, flat, tinned copper wires between two layers of insulating film (such as polyester PET or polyimide PI) using automated equipment and hot-pressing them together. This structure gives them the characteristics of being flexible, bendable, thin, and small in size.

[0003] In the current technology, connectors are mostly fixedly connected to both ends of FFC flexible flat cables. However, in the traditional connection structure, the core wire ends of the FFC flexible flat cable are mostly soldered to the connection end of the connector to form an integral structure. When the connector is connected to the docking device, the pins or locking latches are easily damaged. At this time, the FFC flexible flat cable and the connector are mostly scrapped together, and the subsequent use cost of this structure is high. Summary of the Invention

[0004] The purpose of this invention is to provide a combined FFC flexible flat cable, which optimizes the connector structure, reduces the number of replacement parts when the connector is damaged, and lowers subsequent usage costs.

[0005] To achieve the above objectives, the present invention provides a combined FFC flexible flat cable, including a flexible flat cable body and an auxiliary mechanism; The auxiliary mechanism includes a mounting base, a main connector, a top plate, a guide tube, an auxiliary connector, pins, and a limiting device. The main connector is detachably connected to the mounting base and is fully limited after installation via the top plate. The top plate is detachably connected to the mounting base. The guide tube is fixedly disposed within the housing of the main connector. Multiple pins are fixedly disposed on the auxiliary connector. The multiple pins correspond one-to-one with the insertion holes on the side of the guide tube away from the main body of the flexible flat cable and are slidably inserted. The core wire ends of the main body of the flexible flat cable are welded to a rectangular plane on the side of the guide tube away from the pins.

[0006] The mounting base has a first limiting protrusion symmetrically arranged inside the cavity for limiting the main connector, and a second limiting protrusion arranged on the outside for limiting the auxiliary connector.

[0007] The auxiliary connector is symmetrically provided with mating grooves, which can be either semi-circular grooves or rectangular grooves.

[0008] The limiting device includes a limiting post and a mating component. The limiting post is integrally mounted on the mounting base. The mating component is located on the end side of the limiting post near the flexible flat cable body.

[0009] The mating components include a locking plate, a locking strip, and a knob. The locking plate is slidably connected to the limiting post and abuts against the outer insulation layer surface of the flexible flat cable body. The locking strip is integrally disposed on the locking plate and slidably engages with the locking groove on the outer insulation layer of the flexible flat cable body. The knob is threadedly connected to the limiting post and abuts against the locking plate.

[0010] The top stepped hole of the limiting post has a pre-embedded nut pre-melted and fixed inside, and the pre-embedded nut is threadedly connected to the knob.

[0011] The flexible flat cable body is fitted with a flexible rubber sleeve on its outer side, and the outer surface of the flexible rubber sleeve is coated with a waterproof and wear-resistant coating.

[0012] This invention discloses a combined FFC flexible flat cable. In use, the main connector is first installed on the mounting base. Then, the ends of the core wires inside the flexible flat cable body are soldered to the main connector. A top plate is then installed for sealing and limiting. Next, the auxiliary connector is inserted into the main connector and secured with two countersunk bolts. Finally, the auxiliary connector can be connected to its compatible connector. In this application, the auxiliary connector can be detached from the main connector. The core wires inside the flexible flat cable body are fixed by soldering and can also be separated from the guide tube on the main connector. Therefore, in subsequent use, the detachable connector structure allows for convenient replacement of only damaged parts, while intact parts can continue to be used without replacement. Furthermore, by optimizing the connector structure, the number of parts to be replaced when the connector is damaged is reduced, thus lowering subsequent usage costs. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the overall structure of the combined FFC flexible flat cable according to the first embodiment of the present invention.

[0015] Figure 2 This is a schematic diagram of the main connector according to the first embodiment of the present invention.

[0016] Figure 3 This is a schematic diagram of the mounting base according to the first embodiment of the present invention.

[0017] Figure 4 This is a schematic diagram of the pin structure according to the first embodiment of the present invention.

[0018] Figure 5 This is a schematic diagram of the overall structure of the combined FFC flexible flat cable according to the second embodiment of the present invention.

[0019] Figure 6This is a cross-sectional view of the soft rubber sleeve according to the second embodiment of the present invention.

[0020] Figure 7 This is a schematic diagram showing the installation position of the fixed arm according to the third embodiment of the present invention.

[0021] Figure 8 This is a schematic diagram of the structure of the lock block according to the third embodiment of the present invention.

[0022] In the diagram: 101-Flexible cable body, 102-Mounting base, 103-Main connector, 104-Top plate, 105-Guide tube, 106-Auxiliary connector, 107-Pin, 108-First limiting protrusion, 109-Second limiting protrusion, 110-Matching groove, 111-Limiting post, 112-Clamping plate, 113-Clamping strip, 114-Knob, 201-Soft rubber sleeve, 202-Waterproof and wear-resistant coating, 301-Fixed arm, 302-Elastic arm, 303-Locking block. Detailed Implementation

[0023] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0024] Example 1: like Figures 1 to 4 As shown, where Figure 1 This is a schematic diagram of the overall structure of the combined FFC flexible flat cable. Figure 2 This is a schematic diagram of the main connector. Figure 3 This is a structural diagram of the mounting base. Figure 4 This is a schematic diagram of the pin structure. The present invention provides a combined FFC flexible flat cable: including a flexible flat cable body 101 and an auxiliary mechanism. The auxiliary mechanism includes a mounting base 102, a main connector 103, a top plate 104, a guide tube 105, an auxiliary connector 106, pins 107, and a limiting device. The limiting device includes a limiting post 111 and a mating assembly. The mating assembly includes a locking plate 112, a locking strip 113, and a knob 114. This solution optimizes the connector structure, reduces the number of replacement parts when the connector is damaged, and lowers subsequent usage costs. It is understood that the aforementioned solution can reduce subsequent usage costs.

[0025] In this embodiment, the flexible flat cable body 101 is composed of an insulation layer and multiple independent core wires wrapped inside the insulation layer. In addition, the standard parts used in this application can all be purchased from the market, and can all be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art.

[0026] Preferably, the main connector 103 is detachably connected to the mounting base 102 and is fully positioned after installation via the top plate 104. The top plate 104 is detachably connected to the mounting base 102. The guide tube 105 is fixedly disposed inside the housing of the main connector 103. A plurality of pins 107 are fixedly disposed on the auxiliary connector 106. The plurality of pins 107 correspond one-to-one with the insertion holes on the side of the guide tube 105 away from the flexible flat cable body 101 and are slidably inserted. The core wire end of the flexible flat cable body 101 is welded to the rectangular plane on the side of the guide tube 105 away from the pins 107. The outer shells of the main connector 103 and the auxiliary connector 106 are both made of insulating plastic material. The top plate 104 is fixed by screws. Nuts are pre-fused and fixed on the mounting base 102. The guide tube 105 is directly and intermittently cast inside the shell of the main connector 103. One side of the guide tube 105 has a socket to facilitate the insertion of the pin 107, and the other side has a rectangular plane to facilitate the soldering of the core wire ends.

[0027] Preferably, the mounting base 102 has symmetrically arranged first limiting protrusions 108 inside its cavity for limiting the engagement of the main connector 103, and a second limiting protrusion 109 on its outer side for limiting the engagement of the auxiliary connector 106. The symmetrical arrangement of the first limiting protrusions 108 is used to prevent the main connector 103 from moving along the length of the flexible flat cable body 101. The symmetrical arrangement of the second limiting protrusions 109 is used to limit the installation of the auxiliary connector 106 and prevent it from moving vertically. Additionally, the auxiliary connector 106 has stepped holes on its two side lugs for easy fixing to the mounting base 102 with countersunk screws.

[0028] Preferably, the auxiliary connector 106 is symmetrically provided with mating grooves 110, which can be either semi-circular grooves or rectangular grooves. The mating grooves 110 are used to assist the auxiliary connector 106 in mating with its compatible connector (not shown in the figure).

[0029] Preferably, the limiting post 111 is integrally disposed on the mounting base 102; the mating component is disposed on the end side of the limiting post 111 near the flexible cable body 101. The limiting post 111 is used to limit the U-shaped clamping plate 112.

[0030] Preferably, the clamping plate 112 is slidably connected to the limiting post 111 and abuts against the outer insulation layer surface of the flexible flat cable body 101; the clamping strip 113 is integrally disposed on the clamping plate 112 and slidably engages with the clamping groove on the outer insulation layer of the flexible flat cable body 101; the knob 114 is threadedly connected to the limiting post 111 and abuts against the clamping plate 112. The clamping plate 112 is U-shaped, with through holes on both ends for sliding engagement with the limiting post 111. The depth of the clamping groove on the outer insulation layer of the flexible flat cable body 101 can be set according to actual conditions. The clamping plate 112 and the clamping strip 113 facilitate clamping the end of the flexible flat cable body 101, but the clamping is just enough to avoid excessive compression, thereby preventing the core wire on the end of the flexible flat cable body 101 from falling off the guide cylinder 105 due to movement after installation, thus improving stability.

[0031] Preferably, a pre-embedded nut is pre-fused and fixed in the stepped hole at the top of the limiting post 111, and the pre-embedded nut is threadedly connected to the knob 114. The pre-embedded nut helps to further ensure the stability of the clamping plate 112 after installation.

[0032] When using this invention to reduce the replacement of parts when the connector is damaged, thereby reducing subsequent usage costs, the main connector 103 is first installed on the mounting base 102. The ends of the core wires inside the flexible flat cable body 101 are then welded to the guide tube 105. The top plate 104 is then installed to seal the cavity and limit the position of the main connector 103. The auxiliary connector 106 is then inserted into and installed on the main connector 103, and fixed to the mounting base 102 with two countersunk bolts. Finally, the auxiliary connector 106 can be connected to its compatible connector. In this application, the auxiliary connector 106 can be detached from the main connector 103. The core wires inside the flexible flat cable body 101 are fixed by soldering and can also be separated from the guide tube 105 on the main connector 103. Therefore, in subsequent use, the detachable connector structure allows for convenient replacement of only damaged parts, while intact parts can continue to be used without replacement. Furthermore, by optimizing the connector structure, the number of replacement parts when the connector is damaged is reduced, thus lowering subsequent usage costs.

[0033] Example 2: like Figure 5 and Figure 6 As shown, where Figure 5 This is a schematic diagram of the overall structure of the combined FFC flexible flat cable. Figure 6This is a cross-sectional view of the soft rubber sleeve. Based on the first embodiment, the present invention provides a combined FFC flexible flat cable. A soft rubber sleeve 201 is fitted onto the outer side of the main body 101 of the flexible flat cable, and the outer surface of the soft rubber sleeve 201 is coated with a waterproof and wear-resistant coating 202. The length of the soft rubber sleeve 201 is directly adapted to the end length of the main body 101 of the flexible flat cable between the clamping plates 112. The waterproof and wear-resistant coating 202 is composed of the following raw materials: carbon fiber powder, maleic anhydride grafting, silicone rubber emulsion, polyurethane acrylate, and polyurethane-modified nitrocellulose film-forming agent. By weight, the carbon fiber powder is 9 parts, the maleic anhydride grafting is 10 parts, the silicone rubber emulsion is 60 parts, the polyurethane acrylate is 20 parts, and the polyurethane-modified nitrocellulose film-forming agent is 1 part.

[0034] In this embodiment, the soft rubber sleeve 201 can further protect the soft flat cable body 101 and improve its working safety.

[0035] Example 3: like Figure 7 and Figure 8 As shown, where Figure 7 This is a schematic diagram showing the installation position of the fixed arm. Figure 8 This is a schematic diagram of the locking block. Based on the first embodiment, the present invention provides a combined FFC flexible flat cable. The auxiliary connector 106 is provided with a snap-fit ​​mechanism, which includes a fixed arm 301, an elastic arm 302 and a locking block 303.

[0036] The fixed arm 301 is integrally formed with the auxiliary connector 106, the elastic arm 302 is integrally formed with the fixed arm 301, and the locking block 303 is integrally disposed on the elastic arm 302. The elastic arms 302 are symmetrically arranged on both sides of the mating groove 110.

[0037] In this embodiment, through the structure of the fixed arm 301, the elastic arm 302, and the locking block 303, when the auxiliary connector 106 is inserted, the elastic arm 302 slides and deforms on the mating structure of the connector and opens. Finally, after the auxiliary connector 106 is installed, the locking block 303 slides and locks directly into the slot of the connector after the elastic arm 302 is reset, which helps to improve the stability of the auxiliary connector 106 after installation and prevent it from falling off.

[0038] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art will understand that all or part of the processes for implementing the above embodiments and equivalent variations made in accordance with the claims of this application are still within the scope of this application.

Claims

1. A combined FFC flexible flat cable, comprising a flexible flat cable body, characterized in that, It also includes auxiliary mechanisms; The auxiliary mechanism includes a mounting base, a main connector, a top plate, a guide tube, an auxiliary connector, pins, and a limiting device. The main connector is detachably connected to the mounting base and is fully limited after installation via the top plate. The top plate is detachably connected to the mounting base. The guide tube is fixedly disposed within the housing of the main connector. Multiple pins are fixedly disposed on the auxiliary connector. The multiple pins correspond one-to-one with the insertion holes on the side of the guide tube away from the main body of the flexible flat cable and are slidably inserted. The core wire ends of the main body of the flexible flat cable are welded to a rectangular plane on the side of the guide tube away from the pins.

2. The combined FFC flexible flat cable as described in claim 1, characterized in that, The mounting base has a first limiting protrusion symmetrically arranged inside the cavity for limiting the main connector, and a second limiting protrusion arranged on the outside for limiting the auxiliary connector.

3. The combined FFC flexible flat cable as described in claim 1, characterized in that, The auxiliary connector is symmetrically provided with mating grooves, which can be either semi-circular grooves or rectangular grooves.

4. The combined FFC flexible flat cable as described in claim 1, characterized in that, The limiting device includes a limiting post and a mating component. The limiting post is integrally mounted on the mounting base. The mating component is located on the end side of the limiting post near the body of the flexible flat cable.

5. The combined FFC flexible flat cable as described in claim 4, characterized in that, The mating components include a locking plate, a locking strip, and a knob. The locking plate is slidably connected to the limiting post and abuts against the outer insulation layer surface of the flexible flat cable body. The locking strip is integrally disposed on the locking plate and slidably engages with the locking groove on the outer insulation layer of the flexible flat cable body. The knob is threadedly connected to the limiting post and abuts against the locking plate.

6. The combined FFC flexible flat cable as described in claim 5, characterized in that, A pre-embedded nut is pre-melted and fixed in the stepped hole at the top of the limiting post, and the pre-embedded nut is threadedly connected to the knob.

7. The combined FFC flexible flat cable as described in claim 1, characterized in that, The outer side of the flexible flat cable body is fitted with a soft rubber sleeve, and the outer surface of the soft rubber sleeve is coated with a waterproof and wear-resistant coating.

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