High-speed FFC cable connector

Abstract

The embodiment of the invention provides a cable connector, a method for manufacturing the cable connector and an electronic system. The cable connector comprises a shell assembly, a plurality of flexible flat cables arranged in a stacked mode and a partition piece, and the shell assembly comprises a matching end part, a connecting end part and a mounting channel extending from the connecting end part to the matching end part; the end parts of the plurality of flexible flat cables are inserted into the mounting channel from the connecting end part and extend to the matching end part; a separator is clamped between any adjacent flexible flat cables in the plurality of flexible flat cables, and the end portions of the plurality of flexible flat cables and the separator are held in the housing assembly. When the cable connector is matched with the adaptive electric connector, the terminal assembly of the board connector can be better pressed against the contact disc supported by the separator, so that good electric contact is ensured. Each flexible flat cable can be fixed by using the separator and the housing assembly, and the cable connector is also relatively simple to assemble.

Description

Technical Field

[0001] This disclosure generally relates to the field of connector technology, and more specifically, to high-speed, high-density electrical connectors. These connectors are particularly suitable for harsh environments with strong vibrations, such as vehicles, and more specifically, for new energy vehicles. Background Technology

[0002] Connectors are used in many electronic systems. It is generally easier and more cost-effective to manufacture an electronic system on several printed circuit boards (PCBs) that are connected to each other via connectors than to manufacture the electronic system as a single component. A conventional arrangement for interconnecting several PCBs typically uses one PCB as the printed circuit board. Other PCBs, called daughter boards or daughter cards, are then connected to the printed circuit board via connectors to achieve the interconnection of these PCBs.

[0003] Electronic systems have become smaller, faster, and more complex overall. These changes mean that the number of circuits in a given area of ​​an electronic system, along with the frequency of their operation, has increased significantly in recent years. Current systems transfer more data between printed circuit boards and require electrical connectors capable of transmitting signals at much higher speeds than those used just a few years ago.

[0004] With the widespread use of flexible flat cables (FFC), cable connectors equipped with FFC have become more common. Cable connectors typically contain multiple FFC cables. How to rationally arrange these FFC cables within a limited space, and how to ensure their secure and easy installation into the connector housing, are crucial factors affecting the production cost and performance of the cable connector. Summary of the Invention

[0005] To at least partially address the problems existing in the prior art, a first aspect of this disclosure provides a cable connector, comprising: a housing assembly including a mating end, a connecting end, and a mounting channel extending from the connecting end to the mating end; a plurality of flexible flat cables stacked together, the ends of the plurality of flexible flat cables being inserted from the connecting end into the mounting channel and extending to the mating end; and a spacer, wherein the spacer is clamped between any adjacent flexible flat cables among the plurality of flexible flat cables, and the ends of the plurality of flexible flat cables and the spacer are retained within the housing assembly.

[0006] For example, a shielding layer is formed on the surface of each of the plurality of flexible flat cables.

[0007] For example, the plurality of flexible flat cables includes a first flexible flat cable and a second flexible flat cable, each of the first flexible flat cable and the second flexible flat cable including an inner surface and an outer surface opposite to the inner surface, the inner surfaces of the first flexible flat cable and the second flexible flat cable being opposite to each other, and the shielding layer including an inner shielding layer disposed on the inner surface of at least one of the first flexible flat cable and the second flexible flat cable, the inner shielding layer extending forward to the end of the corresponding flexible flat cable.

[0008] For example, the plurality of flexible flat cables includes a first flexible flat cable and a second flexible flat cable, each of the first flexible flat cable and the second flexible flat cable including an inner surface and an outer surface opposite to the inner surface, the inner surfaces of the first flexible flat cable and the second flexible flat cable being opposite to each other, the shielding layer including an outer shielding layer disposed on the outer surface of at least one of the first flexible flat cable and the second flexible flat cable, the outer shielding layer being spaced apart from the end of the corresponding flexible flat cable to expose the end of the cable conductor of the corresponding flexible flat cable and form a contact plate.

[0009] For example, the housing assembly includes an inner conductive layer on its inner surface, and the outer shielding layer is in electrical contact with the inner conductive layer.

[0010] For example, the mounting channel includes a first channel portion that accommodates the separator and a second channel portion located behind the first channel portion. Along the stacking direction of the plurality of flexible flat cables, at least a portion of the second channel portion has a size smaller than the ends of the plurality of flexible flat cables and the total size of the separator. The inner wall of the second channel portion abuts against the plurality of flexible flat cables, such that the inner conductive layer is in electrical contact with the outer shielding layer.

[0011] For example, each of the plurality of flexible flat cables includes opposing inner and outer surfaces, and the shielding layer includes an inner shielding layer disposed on the inner surface and an outer shielding layer disposed on the outer surface. For each of the plurality of flexible flat cables, at least a portion of each of the inner and outer shielding layers is wider than the corresponding flexible flat cable, and the widened portions of the inner and outer shielding layers are electrically connected to each other.

[0012] For example, the housing assembly includes an outer conductive layer located on its outer surface.

[0013] For example, a conductive member is provided on the mating end, the conductive member is in electrical contact with the outer conductive layer, and the conductive member protrudes from the outer surface of the mating end.

[0014] For example, the conductive component is a conductive ring.

[0015] For example, the conductive ring is elastic.

[0016] For example, the housing assembly includes an inner conductive layer located on its inner surface, the inner conductive layer being electrically connected to the outer conductive layer.

[0017] For example, a shielding layer is formed on the surface of each of the plurality of flexible flat cables, the shielding layer being electrically connected to the inner conductive layer.

[0018] For example, for each of the plurality of flexible flat cables: the separator includes a first groove and a second groove, the first groove and the second groove extending along the length direction of the corresponding flexible flat cable and opposite to each other along the width direction of the corresponding flexible flat cable; and the two side edges of the corresponding flexible flat cable are respectively inserted into the first groove and the second groove.

[0019] For example, for each of the plurality of flexible flat cables: the separator includes a boss disposed at its front end, the boss extending along the width direction of the corresponding flexible flat cable, the corresponding flexible flat cable being disposed behind the boss and abutting against the rear surface of the boss; and the boss being higher than the contact plate of the corresponding flexible flat cable.

[0020] For example, along the protrusion direction of the boss, the rear surface of the boss is inclined rearward.

[0021] For example, the housing assembly includes a top shell and a bottom shell opposite each other along the stacking direction, with the separator and the plurality of flexible flat cables sandwiched between the top shell and the bottom shell.

[0022] For example, the two side edges of the ends of the plurality of flexible flat cables include cable lugs, the two side edges of the separator include separator lugs, and the housing assembly restricts the positions of the cable lugs and the separator lugs at least along the length direction of the plurality of flexible flat cables and the stacking direction.

[0023] For example, the cable lugs and the separator lugs are aligned along the length direction of the plurality of flexible flat cables.

[0024] For example, one of the top shell and the bottom shell includes a snap fastener, and the other of the top shell and the bottom shell includes a joint, the snap fastener engaging with the joint to secure the top shell to the bottom shell.

[0025] For example, the separator is held between the top shell and the bottom shell, and the separator divides the front part of the mounting channel into a first mounting channel and a second mounting channel, the first mounting channel and the second mounting channel receiving the ends of their respective flexible flat cables, wherein: the first mounting channel is formed between the separator and the top shell; and the second mounting channel is formed between the separator and the bottom shell.

[0026] For example, at least one of the top shell and the bottom shell includes a positioning groove, and the separator includes a first positioning pin protruding along the mating direction of the top shell and the bottom shell, the first positioning pin being inserted into the positioning groove to position the separator along the length and width directions of the mounting channel.

[0027] For example, along the stacking direction, there is a gap between the housing assembly and the adjacent shielding layer.

[0028] For example, each of the plurality of flexible flat cables includes a first cable portion disposed on the separator, a second cable portion located outside the housing assembly, and a third cable portion connected between the first cable portion and the second cable portion. Along the stacking direction, the housing assembly is spaced apart from a shielding layer located on and adjacent to the first cable portion of the plurality of flexible flat cables, and along the stacking direction, the size of the third cable portion of the mounting channel that accommodates the plurality of flexible flat cables is larger than the size of the plurality of flexible flat cables.

[0029] According to a second aspect of this disclosure, a method for manufacturing a cable connector is provided, comprising: attaching an end of a first flexible flat cable to a first side of a separator; attaching the separator to a bottom housing with the first flexible flat cable attached thereto, the first side facing the bottom housing; attaching an end of a second flexible flat cable to a second side of the separator, the second side opposite to the first side; and attaching a top housing to the bottom housing such that the separator is held between the top housing and the bottom housing.

[0030] For example, the top shell includes a first locking feature configured for operation with a connector locking assembly.

[0031] For example, the method further includes: fitting a conductive ring onto the installed top shell and bottom shell.

[0032] According to a third aspect of this disclosure, an electronic system is provided, comprising: the cable connector described above; and an adapter connector that can be mated to a mating end of the cable connector.

[0033] A series of simplified concepts are introduced in the description of the invention, which will be further explained in detail in the detailed description section. This description is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0034] The advantages and features of this disclosure are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0035] The following drawings, which are incorporated herein by reference as part of this disclosure, are provided for understanding the disclosure. The drawings illustrate embodiments of the disclosure and their descriptions, serving to explain the principles of the disclosure. In the drawings,

[0036] Figure 1A A perspective view of a portion of an electronic system according to an exemplary embodiment of the present disclosure, wherein a first electrical connector and a mating second electrical connector are connected in place;

[0037] Figure 1B According to Figure 1A A cross-sectional view of the electronic system shown;

[0038] Figure 2 According to Figures 1A to 1B A perspective view of a portion of the electronic system shown, in which the first electrical connector and the mating second electrical connector are separated from each other;

[0039] Figure 3 An exploded view of a cable connector according to an exemplary embodiment of the present disclosure;

[0040] Figure 4A According to Figure 3 The cable connector shown is a sectional perspective view taken by the longitudinal center plane;

[0041] Figure 4B To and Figure 4A Corresponding sectional view;

[0042] Figure 4C A cross-sectional view of a cable connector according to another exemplary embodiment of the present disclosure;

[0043] Figure 5 According to Figure 3 The cable connector shown is a cross-sectional view taken by a plane offset to the right relative to the longitudinal center plane.

[0044] Figure 6Aand Figure 6B According to Figure 3 The diagram shows a three-dimensional view of the top shell of the cable connector at different angles.

[0045] Figure 7A and Figure 7B According to Figure 3 The diagram shows a three-dimensional view of the bottom shell of the cable connector at different angles.

[0046] Figure 8 According to Figure 3 A perspective view of the separator of the cable connector shown;

[0047] Figures 9-15 According to Figure 3 The diagram shows a 3D view of the cable connector at different assembly stages.

[0048] Figure 16 A perspective view of a board connector according to an exemplary embodiment disclosed; and

[0049] Figure 17 According to Figure 5 The exploded view of the board connector is shown.

[0050] The above figures include the following reference numerals:

[0051] 10. Cable connector; 20. Board connector; 21. Main housing; 20A. Second mating end; 20B. Second mounting end; 22. Second conductive component; 23. Shielding shell; 23A. Board lock; 24. Outer shell; 25. Retaining member; 26. Second locking feature; 27. Second annular cavity; 30. First circuit board; 31. Pad via; 100. First housing assembly; 101. First mating end; 102. First connecting end; 103. Mounting channel; 104, 104'. Inner conductive layer; 105, 105'. Outer conductive layer; 106. First annular cavity; 110. Top shell; 111. Snap-fit; 112. First locking feature; 113. Second positioning pin; 120. Bottom shell; 121. Joint; 122. Positioning hole; 130. Separator; 131. First groove; 133. 134. Separator lug; 135. First positioning pin; 140. Boss; 150. Groove; 151. Reinforcing rib; 152. First reinforcing rib; 160. Lug groove; 170. Positioning groove; 180. Recess; 181. First recess; 182. Second recess; 200. Flexible flat cable; 200A. First flexible flat cable; 200B. Second flexible flat cable; 210. Base; 220. Cable conductor; 230. Insulation layer; 241. Inner surface; 242. Outer surface; 250. Shielding layer; 251. Inner shielding layer; 252. Outer shielding layer; 260. Cable lug; 270. Contact plate; 281. First cable portion; 282. Second cable portion; 283. Third cable portion; 300. Conductive ring; 400. Connector locking assembly. Detailed Implementation

[0052] In the following description, numerous details are provided to enable a thorough understanding of this disclosure. However, those skilled in the art will appreciate that the following description merely illustrates preferred embodiments of the disclosure, and that the disclosure can be practiced without one or more of these details. Furthermore, to avoid confusion with this disclosure, some technical features well-known in the art have not been described in detail.

[0053] The inventors understand and recognize a novel design for a cable connector that enables reliable and convenient assembly. This cable connector may include a housing assembly, a plurality of stacked flexible flat cables, and spacers. The housing assembly may include mating ends, connecting ends, and a mounting channel extending from the connecting ends to the mating ends. The mounting channel may be configured to receive the ends of the plurality of flexible flat cables and spacers disposed between the ends of the plurality of flexible flat cables. Specifically, the ends of the plurality of flexible flat cables can be inserted from the connecting ends into the mounting channel and extend to the mating ends. The contact pad portion of the flexible flat cable can be fully supported on the spacers to ensure that the contact pad abuts against a flat surface. The spacers are held between the plurality of flexible flat cables, and the ends of the plurality of flexible flat cables and the spacers are held within the housing assembly. When the cable connector mates with an adapter electrical connector (e.g., a board connector), the terminal assembly of the board connector can preferably press against the contact pad supported by the spacers, ensuring good electrical contact. Moreover, the inclusion of stacked flexible flat cables can significantly increase the density of the cable connector. By placing separators between any adjacent flexible flat cables, the cables can be held more easily and reliably on the housing assembly. The separators and housing assembly effectively secure each flexible flat cable, and the assembly of the cable connector is relatively simple.

[0054] In some embodiments, two or more flexible flat cables can be stacked together along the stacking direction to form a group of flexible flat cables. Each cable connector may include multiple such groups. These groups can be arranged along the width direction of the flexible flat cables. When one or more groups contain three or more flexible flat cables, the group includes two flexible flat cables with contact pads facing opposite directions, and the other flexible flat cables can be positioned outside the two aforementioned flexible flat cables and offset along their length to expose the contact pads of the aforementioned two flexible flat cables.

[0055] In some embodiments, a separator can divide the front portion of the mounting channel into a first mounting channel and a second mounting channel. Both the first and second mounting channels can extend from the mating end toward the connecting end; exemplarily, the first and second mounting channels can be spaced apart from the connecting end. The first and second mounting channels can each receive the end of their respective flexible flat cables. The separator can be centrally located at the mating end of the housing assembly along the stacking direction of the flexible flat cables, thereby ensuring that the end of each flexible flat cable has the same spacing from the conductive layer of the housing assembly, resulting in better shielding. Furthermore, when the cable connector using this housing assembly mates with an adapter connector, the separator can also enhance the rigidity of the ends of the flexible flat cables, facilitating insertion of the ends of the flexible flat cables into the adapter connector.

[0056] In some embodiments, the housing assembly may include a top housing and a bottom housing. The top housing may include a first locking feature configured for operation with a connector locking assembly (CPA). Dividing the housing assembly into a top housing and a bottom housing facilitates the mounting of a separator and the end of a flexible flat cable therein. Furthermore, the top and bottom housings are positioned vertically opposite each other, rather than as two sub-housings, such as a left and right housing, positioned in other directions. This facilitates injection molding and reduces the likelihood of accidental separation of the top and bottom housings during routine operation. In some embodiments, one of the top and bottom housings may include a snap-fit, and the other may include a engagement portion that engages with the snap-fit. This allows for the assembly of the insulating body at a lower cost.

[0057] In some embodiments, the cable connector may include a plurality of flexible flat cables and spacers stacked together. The ends of the plurality of flexible flat cables may be held within a housing assembly. The spacers may be located between the plurality of flexible flat cables and are held by the housing assembly along the stacking direction of the plurality of flexible flat cables. In some embodiments, a shielding layer, such as aluminum foil or copper foil, is formed on the surface of each of the plurality of flexible flat cables. This serves to shield the conductor while minimizing the impact on the flexibility of the flexible flat cables. Considering the vulnerability of the shielding layer to damage, the two side edges of the flexible flat cables may, exemplarily, include cable lugs, and the two side edges of the spacers may include spacer lugs. The cable lugs and spacer lugs may be held by a housing assembly, such as a top and bottom shell, along the stacking direction of the flexible flat cables. Exemplarily, the cable lugs and spacer lugs may be engaged by the housing assembly along the length of the flexible flat cables to restrict their position.

[0058] In some embodiments, the separator can form a first mounting channel with the top housing and a second mounting channel with the bottom housing. Thus, two flat flexible cables can be respectively disposed within the first and second mounting channels and spaced apart from each other. When the electrical connector and the adapter connector mate, the separator can withstand the pressure applied by the adapter connector to the contact pads of the two flat flexible cables from two directions. The two pressures cancel each other out, preventing the separator from shifting to one side.

[0059] Furthermore, in some embodiments, the shielded portion of the flexible flat cable is not clamped by the top and bottom shells. The flexible flat cable may include a first cable portion disposed on the separator, a second cable portion located outside the housing assembly, and a third cable portion connecting the first and second cable portions. Correspondingly, the mounting channel may include a first channel portion accommodating the first cable portion and the separator, and a second channel portion accommodating the third cable portion. Along the stacking direction, the housing assembly may be spaced apart from the shielding layer on the first cable portion. Along the stacking direction, the size of the mounting channel accommodating the third cable portion may be larger than the size of multiple flexible flat cables. This effectively avoids damage to the cable conductor or shielding layer due to the rated compression of the housing assembly. Especially in applications where the flexible flat cable may be subjected to tension, it prevents damage to the shielding layer caused by clamping of the portion of the housing assembly in contact with the shielding layer during tension. Exemplarily, the minimum height (i.e., the second height) of the second channel portion accommodating the third cable portion may be less than the minimum height (i.e., the first height) of the first channel portion accommodating the first cable portion and the separator. However, the second height can be less than the total height of the stacked flexible flat cables and the spacers between them, thereby allowing the inner surface of the second channel portion to abut against the flexible flat cable. Thus, the conductive layer on the inner surface of the second channel portion can make electrical contact with the shielding layer on the surface of the flexible flat cable.

[0060] In some embodiments, a plurality of flexible flat cables may include a first flexible flat cable and a second flexible flat cable. The first and second flexible flat cables may have inner surfaces opposite each other and outer surfaces opposite to each other. Exemplarily, the shielding layer may include an inner shielding layer disposed on the inner surface and / or an outer shielding layer disposed on the outer surface. The inner shielding layer may extend to the end of the corresponding flexible flat cable end, or even through the entire length of the corresponding flexible flat cable. The outer shielding layer may be spaced apart from the end of the corresponding flexible flat cable end to expose the end of the cable conductor of the corresponding flexible flat cable and form a contact plate. Exemplarily, the outer shielding layer may extend along the length direction to the other end of the flexible flat cable. Thus, the cable conductor within the flexible flat cable can be enclosed in the shielding layer as much as possible, exposing only the necessary contact plate, thereby improving electromagnetic compatibility performance. Exemplarily, the first and second flexible flat cables may have the same construction.

[0061] In some embodiments, for each of a plurality of flexible flat cables, the separator may include a first groove and a second groove. The first groove and the second groove may extend along the length direction of the flexible flat cable and be opposite each other along the width direction of the flexible flat cable. The two side edges of the flexible flat cable are respectively inserted into the first groove and the second groove. The first groove and the second groove can press the inner surface of the flexible flat cable against the surface of the separator from both sides, thereby limiting the warping of the flexible flat cable and extending its service life.

[0062] The inventors understand and recognize a design for an electronic system. This electronic system may include a cable connector and a board connector. The cable connector may include a first housing assembly, a first conductive component held by the first housing assembly, and a first shielding assembly. The board connector may include a second housing assembly, a second conductive component held by the second housing assembly, and a second shielding assembly. When the cable connector and the board connector mate, the first conductive component and the second conductive component are in corresponding electrical contact, and the first shielding assembly and the second shielding assembly form a full shield around the first conductive component and the second conductive component. This full shielding structure can improve electromagnetic compatibility performance.

[0063] In some embodiments, an outer conductive layer may be disposed on the outer surface of the first housing assembly, and a conductive ring may be fitted onto the first housing assembly. The first shielding assembly includes the outer conductive layer and the conductive ring. The second shielding assembly may include a shielding shell held on the second housing assembly. The conductive ring is electrically connected between the outer conductive layer and the shielding shell when the cable connector and board connector mate. Thus, the outer conductive layer and the shielding shell form a reliable electrical connection, achieving full shielding. Exemplarily, the conductive ring may be made of an elastic material such as conductive rubber. Exemplarily, the conductive ring may also form a seal between the first housing assembly and the second housing assembly.

[0064] In some embodiments, a recess may be provided on the outer surface of the first housing assembly. The recess may be configured to receive a conductive ring. The conductive ring disposed in the recess may protrude from the outer surface of the first housing assembly. This prevents excessive resistance when the cable connector is inserted into the board connector, and also prevents the conductive ring from being excessively squeezed and damaged.

[0065] like Figures 1A to 1BA portion of an electronic system, such as that used in a vehicle, is shown for interconnecting multiple electronic devices within the system. As shown, the electronic system may include cable connectors 10 and board connectors 20 that are mutually adapted and detachably connected to each other. Board connectors 20 may be mounted to a circuit board, such as a first circuit board 30. Cable connectors 10 may include a plurality of flexible flat cables 200 stacked together. Cable connectors 10 can be electrically connected to an electronic device, such as another circuit board (e.g., a second circuit board), via the stacked flexible flat cables 200, allowing the second circuit board to be at a distance from the first circuit board 30. Cable connectors 10 and board connectors 20 can provide interconnection between the first circuit board 30 and the second circuit board. Typically, the first circuit board 30, to which board connectors 20 are mounted, may be fixed to another electronic device. In harsh environments such as those presented by a vehicle, the electronic system can transmit data signals while being subjected to vibration.

[0066] Reference Figures 2 to 5 The cable connector 10 may include a first housing assembly 100, a plurality of stacked flexible flat cables 200, and a separator 130. In some embodiments, the first housing assembly 100 may be molded from a material such as plastic. Plastic may include, but is not limited to, liquid crystal polymer (LCP), polyphenylene sulfide (PPS), high-temperature nylon, or poly(p-phenylene oxide) (PPO) or polypropylene (PP), or any other suitable material. In some cases, the plastic may be a thermosetting plastic. In some cases, the insulating plastic may contain insulating materials such as glass fiber reinforced materials. Plastic is lightweight and has a certain degree of deformability under external force, thus allowing multiple parts of the first housing assembly 100 to be assembled together by means of snap-fit, thereby reducing assembly costs. In other embodiments, the first housing assembly 100 may be made of metal, for example, by stamping a metal sheet or by casting. This application also does not exclude embodiments in which the first housing assembly 100 is made of materials such as ceramic.

[0067] A connector locking assembly 400 may be mounted on the first housing assembly 100. Exemplarily, the first housing assembly 100 may include a first locking feature 112. The connector locking assembly 400 may engage with the first locking feature 112 to remain on the first housing assembly 100. In use, for ease of observation and operation, the first locking feature 112 is typically facing upwards when the cable connector 10 is fitted to the board connector 20. Thus, the side having the first locking feature 112 may be referred to as the top side of the first housing assembly 100. Exemplarily, the board connector 20 may include a second locking feature 26. After the cable connector 10 is fitted to the board connector 20, by operating the connector locking assembly 400, the first locking feature 112 and the second locking feature 26 can be locked together to prevent accidental separation of the two connectors. One of the first locking feature 112 and the second locking feature 26 may be configured to include a protrusion, and the other may be configured to include a recess and / or groove capable of engaging with the protrusion.

[0068] The first housing assembly 100 may include a first mating end 101, which may be shaped to fit the board connector 20. The first housing assembly 100 may also include a first connecting end 102. The first connecting end 102 and the first mating end 101 may be located at opposite ends of the first housing assembly 100. A first conductive component may include a cable such as a flexible flat cable 200. An end of the flexible flat cable 200 may be mounted from the first connecting end 102 into the first housing assembly 100 and extends to the first mating end 101. In the illustrated embodiment, the axes of the first mating end 101 and the first connecting end 102 are substantially parallel, thus the end of the flexible flat cable 200 within the first housing assembly 100 is substantially straight. In an embodiment not shown, the axes of the first mating end 101 and the first connecting end 102 may be perpendicular to each other, and the end of the flexible flat cable 200 within the first housing assembly 100 may have a bend. Exemplarily, the first housing assembly 100 may include a mounting channel 103 extending from the first connecting end 102 to the first mating end 101, in which the end of the flexible flat cable 200 may be mounted. In some embodiments, the first housing assembly 100 may be integral, and the mounting channel 103 may be formed by draft molding. In other embodiments, the mounting channel 103 may be integrally formed onto the first housing assembly 100 by processes such as machining or injection molding. In embodiments where the first housing assembly 100 is assembled from at least two parts, in some embodiments the mounting channel 103 may be disposed on one of the parts, while in other embodiments the mounting channel 103 may be formed by the inner surfaces of two or more parts.

[0069] refer to Figure 3The flexible flat cable 200 may include a substrate 210, a cable conductor 220 formed on the substrate 210, and an insulating layer 230 covering the cable conductor 220. The substrate 210 may be insulating. The substrate 210 typically has a greater thickness and mechanical strength than the insulating layer 230, but possesses a certain degree of flexibility. The cable conductor 220 may be formed on the substrate 210 by means of bonding or heat fusion. The insulating layer 230 may expose the cable conductor 220 at the end of the corresponding flexible flat cable 200 to form a contact disc 270. The contact disc 270 may be located within the first mating end 101.

[0070] The board connector 20 may include a second housing assembly and a second conductive component 22 held by the second housing assembly. The second housing assembly may include a second mating end 20A and a second mounting end 20B located at both ends. The second mating end 20A is configured to mate in shape with the first mating end 101. Exemplarily, the second mating end 20A and the first mating end 101 may be complementary in shape to allow the cable connector 10 to be precisely positioned on the board connector 20. The second conductive component 22 may extend from the second mating end 20A to the second mounting end 20B. The second conductive component 22 may include a plurality of conductive terminals for electrically connecting to a corresponding contact pad 270 after the cable connector 10 mates with the board connector 20. As shown, the second mounting end 20B may be mounted to a first circuit board 30 such that the plurality of conductive terminals of the second conductive component 22 form an electrical connection with the circuitry on the first circuit board 30, thereby interconnecting the first circuit board 30 with the cable connector 10. To reliably secure the board connector 20 to the first circuit board 30, the board connector 20 may also include a board lock 23A. Exemplarily, the first circuit board 30 may have pad vias 31. A board lock 23A can be mounted into the pad vias 31 to secure the board connector 20 to the first circuit board 30. In some embodiments, the second housing assembly may also be molded from a material such as plastic. Plastics may include, but are not limited to, liquid crystal polymers (LCP), polyphenylene sulfide (PPS), high-temperature nylon, or poly(p-phenylene oxide) (PPO) or polypropylene (PP), or any other suitable material. In some cases, the plastic may be a thermosetting plastic. In some cases, the insulating plastic may comprise insulating materials such as glass fiber reinforced materials. Plastics are lightweight, flexible, easy to process, and inexpensive.

[0071] Optionally, a noble metal layer may be formed on the surface of the contact pad 270 of the first conductive component and / or the surface of the second conductive component 22 to avoid poor contact caused by oxidation.

[0072] like Figure 3 , Figures 4A to 4B and Figure 5As shown, the cable connector 10 may include a plurality of flexible flat cables 200 stacked together. The ends of the plurality of flexible flat cables 200 extend from a first connecting end 102, for example, via a mounting channel 103, to a first mating end 101 and are held within the mounting channel 103 of the first housing assembly 100. In the illustrated embodiment, the flexible flat cables 200 may be configured to have contact pads 270. The contact pads 270 may be located within the first mating end 101. Optionally, the plurality of flexible flat cables 200 are arranged in pairs, with each pair of flexible flat cables 200 stacked along the thickness direction of the flexible flat cables 200. The contact pads 270 of each pair of flexible flat cables 200 may face opposite directions to facilitate electrical contact with terminals on a mating electrical connector. In the illustrated embodiment, the cable connector 10 may include a pair of flexible flat cables 200. In other embodiments, the cable connector 10 may include multiple pairs of flexible flat cables 200, which may be arranged in a row along the width direction of the flexible flat cables 200. Optionally, more than two flexible flat cables 200 can be provided along the stacking direction of the flexible flat cables 200. In this case, the flexible flat cables 200 facing the same side of the contact plate 270 can be staggered along their length direction to expose the contact plate 270 of the lower flexible flat cable 200.

[0073] Exemplarily, the cable connector 10 may further include a separator 130. A separator 130 is held between any adjacent flexible flat cables 200 among the plurality of flexible flat cables 200. Optionally, the separator 130 is held by a first housing assembly 100 along the stacking direction of the plurality of flexible flat cables 200. Typically, each separator 130 may correspond to two flexible flat cables 200. In the illustrated embodiment, two flexible flat cables 200 are included along the stacking direction, namely a first flexible flat cable 200A and a second flexible flat cable 200B. Specifically, the two opposing surfaces of the separator 130 may respectively abut against the back surface of the first flexible flat cable 200A and the back surface of the second flexible flat cable 200B. In the illustrated embodiment, the portions of the first flexible flat cable 200A and the second flexible flat cable 200B having contact pads 270 may be fully supported on the separator 130 to ensure that the contact pads 270 abut against a flat surface. When the cable connector 10 mates with the board connector 20, the terminals of the board connector 20 can be preferably pressed against the contact plate 270 supported by the separator 130, ensuring good electrical contact. Optionally, along the length of the flexible flat cable 200, the separator 130 can be significantly longer than the contact plate 270, allowing more of the flexible flat cable 200 to be supported on the separator 130. In this case, through the cooperation of the separator 130 with the first housing assembly 100, the first flexible flat cable 200A and the second flexible flat cable 200B on both sides can be clamped between the separator 130 and the top shell 110 of the first housing assembly 100 (as mentioned later) and between the separator 130 and the bottom shell 120 of the first housing assembly 100 (as mentioned later), respectively.

[0074] Optionally, in other embodiments not shown, three or more layers of flexible flat cables 200 may be provided along the stacking direction. For each group of stacked flexible flat cables 200, the number of spacers may be one less than the number of flexible flat cables 200, to form a structure in which spacers 130 and flexible flat cables 200 are arranged alternately.

[0075] Exemplarily, the separator 130 can be installed within the mounting channel 103 to space apart at least two stacked flexible flat cables 200 and to position the ends of the flexible flat cables 200. Therefore, the separator 130 can be a flat, sheet-like structure as shown in the figure. In some embodiments, the separator 130 can be inserted into the mounting channel 103 from the first connecting end 102 and secured within the mounting channel 103 by means of clips, screws, or other structures. In summary, the ends of the plurality of flexible flat cables 200 and the separator can be held within the housing assembly by any suitable means. Return to Reference Figure 2 and Figure 3In the embodiment shown in the figure, the first housing assembly 100 may include multiple parts, whereby the separator 130 and the flexible flat cable 200 can be mounted onto the first cable portion of the multiple parts before the multiple parts are assembled, and then the remaining second part is assembled with the first part, thereby positioning the separator 130 and / or the flexible flat cable 200, at which point the flexible flat cable 200 extends from the rear opening of the mounting channel 103 to the outside of the first housing assembly 100. Since the separator 130 has two large and opposing flat surfaces, one end of the flexible flat cable 200 can be supported on each of these two surfaces. In an embodiment not shown, the width of these two flat surfaces may be greater than the width of the end of the flexible flat cable 200, such that each flat surface can support the ends of multiple flexible flat cables 200 side by side.

[0076] In some embodiments, the mounting channel 103 may include a first channel portion accommodating a separator 130 and a second channel portion located behind the first channel portion. As shown, exemplarily, the separator 130 may divide the front portion of the mounting channel 103, i.e., the first channel portion, into a first mounting channel 103A and a second mounting channel 103B. Both the first mounting channel 103A and the second mounting channel 103B may extend from the first mating end 101 toward the first connecting end 102 and be spaced apart from the second channel portion where the first connecting end 102 is located. Figures 4A to 4B and Figure 5 As shown, along the stacking direction of the flexible flat cable 200, the separator 130 is located in the middle of the mounting channel 103 to separate the first mounting channel 103A and the second mounting channel 103B on the upper and lower sides of the separator 130, respectively. The ends of the first flexible flat cable 200A and the second flexible flat cable 200B can be inserted into the first mounting channel 103A and the second mounting channel 103B, respectively. Within the first mating end 101, along the width direction of the flexible flat cable 200, the separator 130 is also spaced apart from the first housing assembly 100. Thus, the inner layer of the second mating end 20A of the board connector 20 can be inserted into the first annular cavity 106 between the separator 130 and the first housing assembly 100 to increase the mechanical strength of the connection. As will be described later, the second mating end 20A of the board connector 20 also has an outer layer that can be fitted over the outside of the first mating end 101 of the first housing assembly 100 to further enhance the strength of the mechanical connection. The position of the separator 130 in the first mating end 101 of the first housing assembly 100 is related to the mating connector.

[0077] like Figure 3In the illustrated embodiment, the first housing assembly 100 may include a top shell 110 and a bottom shell 120. Through split processing, grooves 140 can be injection molded into the interior of the top shell 110 and bottom shell 120 to reduce material consumption and weight. Reinforcing ribs 150 may be retained within the grooves 140 to ensure the mechanical strength of the top shell 110 and bottom shell 120. A separator 130 and a plurality of flexible flat cables 200 are held between the top shell 110 and bottom shell 120. As described above, the first housing assembly 100 is at least divided into two parts: a top shell 110 and a bottom shell 120, which can together form a mounting channel. In some embodiments, the bottom shell 120 may form the lower half of the mounting channel, and the top shell 110 may form the upper half of the mounting channel. When the top shell 110 and bottom shell 120 are separated, it is equivalent to dividing the mounting channel into two parts from the largest cross-section of the mounting channel. Thus, when the top shell 110 is separated from the bottom shell 120, an opening can be formed on the bottom shell 120 to facilitate the installation of the separator 130 and the flexible flat cable 200. In other embodiments, the top shell 110 may form the left or right half of the mounting channel, and the bottom shell 120 may form a portion complementary to the mounting channel and the top shell 110.

[0078] For example, a first mounting channel 103A can be formed between the separator 130 and the top shell 110, and a second mounting channel 103B can be formed between the separator 130 and the bottom shell 120. As a result, the cable connector has a simpler structure and is easier to assemble.

[0079] In use, the user typically pinches the top shell 110 and the bottom shell 120 with their fingers and inserts the cable connector 10 into the board connector 20. This divides the first housing assembly 100 into two parts, the top shell 110 and the bottom shell 120, which not only facilitates injection molding but also prevents accidental separation of the top shell 110 and the bottom shell 120 during daily operation. The top shell 110 may include a first locking feature 112 configured for operation with the connector locking assembly 400, facilitating operation of the connector locking assembly 400.

[0080] Exemplarily, the connector locking assembly 400 can move forward or backward along the length of the flexible flat cable 200. The directional term "forward" as used herein and hereinafter refers to the direction along the length of the flexible flat cable 200 toward the mating electrical connector. Conversely, the directional term "rear" refers to the direction along the length of the flexible flat cable 200 away from the mating electrical connector. When it is necessary to lock the interconnected cable connector 10 and board connector 20, it can be pushed forward until the connector locking assembly 400 is inserted into the gap between the first locking feature 112 and the top shell 110. Exemplarily, the first locking feature 112 can be configured to have a locking protrusion that can engage with a locking opening on the board connector 20, thereby locking the cable connector 10 and the board connector 20. When it is necessary to unlock the cable connector 10 and the board connector 20, the connector locking assembly 400 can be moved backward. The connector locking assembly 400 disengages from the gap between the first locking feature 112 and the top shell 110, allowing the first locking feature 112 to move toward the top shell 110 under external force. This allows the locking protrusion to disengage from the locking opening of the board connector 20, thereby enabling the cable connector 10 and the board connector 20 to separate under external force. Of course, this application does not exclude embodiments using other forms of connector locking assemblies.

[0081] Exemplarily, one of the top shell 110 and the bottom shell 120 may include a snap fastener, and the other of the top shell 110 and the bottom shell 120 includes a connecting portion. In the illustrated embodiment, the top shell 110 is provided with an outwardly protruding snap fastener 111, and the bottom shell 120 is provided with a connecting portion 121 extending toward the top shell 110. Exemplarily, the connecting portion 121 may have a certain degree of elasticity and include an opening. When the top shell 110 and the bottom shell 120 are engaged, the connecting portion 121 may be offset outward under the guidance of the inclined surface of the snap fastener 111, thereby fitting the opening onto the snap fastener 111 and locking it by the blocking surface. This arrangement facilitates the demolding of the top shell 110 and the bottom shell 120 during injection molding. In an embodiment not shown, the connecting portion 121 may also be provided in the bottom shell 120, and the snap fastener may be provided in the top shell 110. The snap fastener engages with the connecting portion, thereby fixing the top shell 110 to the bottom shell 120. In this way, the top shell 110 can be detachably and securely fixed to the bottom shell 120 at a lower cost by means of the snap fastener 111 and the joint 121.

[0082] Reference Figures 6A to 6B and Figures 7A to 7BA second positioning pin 113 may be provided on the top shell 110. The second positioning pin 113 can be inserted into the positioning hole 122 of the bottom shell 120, thereby preventing misalignment between the top shell 110 and the bottom shell 120. In other embodiments not shown, the second positioning pin may also be provided on the bottom shell and the positioning hole may be provided on the top shell, or the second positioning pin may be provided on both the top shell and the bottom shell, and the positioning hole may also be provided on the top shell and the bottom shell respectively. Figure 5 An example is shown where the second locating pin 113 is inserted into the locating hole 122.

[0083] Exemplarily, the first housing assembly 100 may also be provided with a positioning groove 170, and the separator 130 includes a first positioning pin 134, which is inserted into the positioning groove 170 to position the separator 130 in the first housing assembly 100. In some embodiments, the first positioning pin 134 may fit tightly with the positioning groove 170. In this way, after the first positioning pin 134 is inserted into the positioning groove 170, it can play a limiting role along the length and width directions of the flexible flat cable 200.

[0084] In embodiments where the first housing assembly 100 includes a top shell 110 and a bottom shell 120, at least one of the top shell 110 and the bottom shell 120 may include a positioning groove, and the partition 130 may include a first positioning pin 134 projecting along the mating direction of the top shell 110 and the bottom shell 120. The first positioning pin 134 is inserted into the positioning groove to position the partition 130 along the length and width directions of the mounting channel. In some embodiments, the first positioning pin 134 of the partition 130 may be inserted into the positioning groove of the top shell 110, thereby securing it to the top shell 110. After the top shell 110 and the bottom shell 120 are secured, the partition 130 is positioned within the first housing assembly 100. In other embodiments, the first positioning pin 134 of the partition 130 may be inserted into the positioning groove of the bottom shell 120 for positioning. In some embodiments, the separator 130 may include one or more pairs of first locating pins 134 extending in opposite directions, such that each pair of separators 130 can be correspondingly inserted into a locating slot in the top housing 110 and a locating slot in the bottom housing 120. In summary, the provision of the first locating pins 134 and the locating slots facilitates the positioning of the separator 130 within the first housing assembly 100. The removable top housing 110 and bottom housing 120 facilitate the installation of the separator 130.

[0085] Exemplarily, the two side edges of the separator 130 may include separator lugs 133, such as Figure 3 , Figure 5 and Figures 8 to 11As shown. The top shell 110 and bottom shell 120 can also clamp the separator lugs 133 on the upper and lower sides respectively, thereby limiting the separator 130 along the stacking direction of the flexible flat cable 200. The two side edges of the end of each flexible flat cable 200 also include cable lugs 260. In some embodiments, the first housing assembly 100 may include receiving grooves corresponding to the cable lugs 260 and the separator lugs 133 respectively. In the length direction, the cable lugs 260 can abut against the groove wall of the corresponding receiving groove, thereby playing a limiting role. The receiving grooves provided corresponding to the separator lugs 133 can limit the position of the separator. The depth of the receiving groove for the cable lugs 260 can be close to the thickness of the cable lugs 260, thereby limiting the position of the flexible flat cable 200 and / or reducing the gaps in the cable connector along the stacking direction. Similarly, the receiving groove for the separator lugs 133 can also have a depth close to the thickness of the separator lugs 133. Alternatively, the plurality of cable lugs 260 and the plurality of separator lugs 133 may also be accommodated in a receiving groove. This is acceptable as long as it fulfills its function of limiting the position of the cable lugs 260 and separator lugs 133 at least along the length and stacking direction of the plurality of flexible flat cables 200.

[0086] In some embodiments, cable lugs 260 may be positioned in a one-to-one correspondence with separator lugs 133. In other words, cable lugs 260 and separator lugs 133 may be aligned along the length of the plurality of flexible flat cables 200. Cable lugs 260 may be formed on the portion of the flexible flat cable 200 excluding the cable conductor 220. Cable lugs 260 and separator lugs 133 may engage together with a first housing assembly 100 to limit the position of the plurality of flexible flat cables 200 and separators 130 along the length of the plurality of flexible flat cables 200. In embodiments not shown, top housing 110 and bottom housing 120 may also position the flexible flat cables 200 and separators 130 along their length by clamping the cable lugs 260 toward the separator lugs 133, respectively. Figure 5 and Figure 6AAs shown, both the top shell 110 and the bottom shell 120 of the first housing assembly 100 may be provided with lugs and grooves 160. Cable lugs 260 and separator lugs 133 can mate with the lugs and grooves 160. The cable lugs 260 and separator lugs 133 can be embedded into the lugs and grooves 160. After the top shell 110 and the bottom shell 120 of the first housing assembly 100 are connected, the flexible flat cable 200 and the separator 130 can be positioned from the stacking direction of the flexible flat cable 200. Specifically, in some embodiments, the first housing assembly 100, such as the top shell 110 and the bottom shell 120, can directly press against the flexible flat cable 200. In some preferred embodiments, the first housing assembly 100 can press against only the cable lugs 260 in the stacking direction. In some embodiments, the first housing assembly 100 only presses against the separator 130, without pressing against the flexible flat cable 200. The separator 130 can position the flexible flat cable 200 along the stacking direction. In the length direction, the edges of the cable lug 260 and the separator lug 133 abut against the lug groove 160 for positioning. In the width direction, the first housing assembly 100 can tightly engage with both sides of the flexible flat cable 200 when it is installed, thus providing a limiting function. In the embodiment shown in the figure, the flexible flat cable 200 and the separator 130 are limited by the cable lug 260 and the separator lug 133 being positioned against the first housing assembly 100 in the length direction, rather than by clamping in the stacking direction. This eliminates the need for a large clamping force between the top shell 110 and the bottom shell 120, reduces the requirements for material strength and assembly precision, and lowers costs.

[0087] In some embodiments, each flexible flat cable 200 may include a plurality of cable lugs 260 disposed along the length direction of the flexible flat cable 200. The separator 130 may also include a plurality of separator lugs 133 disposed along the length direction of the flexible flat cable 200. After the flexible flat cable 200 and the separator 130 are installed to the first housing assembly 100, exemplaryly, the projections of the cable lugs 260 onto the separator 130 may all fall within the separator lugs 133. In this way, the separator lugs 133 can provide support for the cable lugs 260, preventing damage to the cable lugs 260.

[0088] During use, the flexible flat cable 200 may warp due to aging, vibration, or its own stress. This may damage the flexible flat cable 200 or the conductive terminals of the board connector 20 when the cable connector 10 mates with the board connector 20. For example, for each of the plurality of flexible flat cables 200, the separator 130 may include a first groove 131 and a second groove. Figures 8 to 9The first groove 131 is shown. The second groove may be symmetrically arranged with respect to the axis along the length direction of the flexible flat cable 200. The first groove 131 and the second groove may extend along the length direction of the corresponding flexible flat cable 200 and be opposite to each other along the width direction of the corresponding flexible flat cable 200. The two side edges of the corresponding flexible flat cable 200 are respectively inserted into the first groove 131 and the second groove. (Refer to reference...) Figure 8 , Figure 9 and Figure 11 The separator 130 can be axisymmetric, meaning it can be symmetrical not only along its width centerline but also along its stacking centerline. Both the top and bottom surfaces of the separator 130 can have a first groove 131 and a second groove. Thus, for each flexible flat cable 200, the first groove 131 and the second groove can press the flexible flat cable 200 against the surface of the separator 130 from both sides, thereby limiting the flexible flat cable 200 from warping and extending its service life.

[0089] In some embodiments, for each of the plurality of flexible flat cables 200, such as Figures 4A to 4B and Figures 8 to 9 As shown, the separator 130 may include a boss 135 disposed at its front end. The boss 135 may extend along the width direction of the corresponding flexible flat cable 200. The corresponding flexible flat cable 200 may be disposed behind the boss 135 and abut against the rear surface of the boss 135. Thus, when the corresponding flexible flat cable 200 is installed to the separator 130, its installation position can be confirmed by abutting its end against the boss 135. In the above embodiment where the flexible flat cable 200 is inserted into the first groove 131 and the second groove on both sides, the flexible flat cable 200 can only be installed along its length direction, and the boss 135 can further ensure the accuracy of the installation position of the flexible flat cable 200. The boss 135 may be higher than the contact plate 270 of the corresponding flexible flat cable 200. In some embodiments, the front end of the boss 135 (the side facing away from the contact plate 270) may be provided with a chamfer. When the cable connector is inserted into the board connector, the conductive terminals of the board connector can be guided to the surface of the boss 135 by the chamfer, and slide smoothly over the boss 135 onto the contact plate 270 of the flexible flat cable 200. This prevents the conductive terminals of the board connector from getting stuck at the front end of the flexible flat cable 200, thus avoiding the front end of the flexible flat cable 200 from lifting up. Furthermore, the boss 135 can cover the gap between the inner surface of the flexible flat cable 200 and the separator 130. This prevents the end of the conductive terminal from accidentally inserting into the gap between the flexible flat cable 200 and the separator 130, thus avoiding damage to the conductive terminal or the flexible flat cable 200.

[0090] In some embodiments, further, along the protruding direction of the boss 135, the rear surface of the boss 135 is inclined rearward. In other words, a portion of the rear surface of the boss 135 can cover the flat flexible cable 200. In this case, even if the flat flexible cable 200 delaminates due to aging or has a tendency to warp upward, the rear surface of the boss 135 can apply pressure toward the separator 130 to the warped portion, ensuring that at least the portion abutting against the rear surface of the boss 135 will not warp. This avoids the situation where the flat flexible cable 200 is only fixed by the first groove 131 and the second groove, and the flat flexible cable 200 warps due to lack of force in the middle. In some embodiments, even if the separator 130 is not provided with the first groove 131 and the second groove, so that the two sides of the flat flexible cable 200 are not fixed to the separator 130, the rear surface of the rearward-inclined boss 135 alone can effectively prevent the flat flexible cable 200 from warping. It should be noted that the rearward extension of the rear surface of the boss 135 is relatively small, and has almost no impact on the contact area of ​​the contact plate 270. Moreover, the inclined rear surface of the boss 135 can better shield the front end of the flat flexible cable 200, further preventing the front end of the flat flexible cable 200 from lifting up.

[0091] To improve the signal integrity of an electronic system including cable connector 10 and board connector 20, cable connector 10 may optionally include a first shielding assembly. Board connector 20 may include a second shielding assembly. The first shielding assembly may include a conductive layer, as described below. If the first housing assembly 100 is made of a conductive material such as metal, the first shielding assembly may also include the first housing assembly 100. The second shielding assembly may include a shielding shell 23, such as... Figures 16 to 17As shown, the shielding shell 23 can partially or fully surround the second conductive component 22 along the circumferential direction of the board connector 20. The first and second shielding components form a full shield when the cable connector 10 and the board connector 20 mate. In some embodiments, the first and second shielding components can substantially completely surround the contact portion of the first and second conductive components 22 along the circumferential direction to form a full shield. In other embodiments, the first and second shielding components can substantially completely surround the portion of the second conductive component 22 within the board connector 20 and the portion of the first conductive component within the first housing assembly 100 of the cable connector 10 along the circumferential direction to form a full shield. Exemplarily, the first and / or second shielding components can be electrically connected to the same reference voltage, such as ground. Exemplarily, the first and second shielding components can be electrically connected to the same reference voltage, respectively. Exemplarily, the first and second shielding components can be electrically contacted to each other after the cable connector 10 and the board connector 20 mate. In this case, the first and second shielding components can be selectively electrically connected to the reference voltage. For example, board connector 20 is mounted to first circuit board 30, and second shielding assembly can be electrically connected to a reference voltage on first circuit board 30.

[0092] like Figure 4B As shown, for a first housing assembly 100 made of insulating materials such as plastic or ceramic, the first housing assembly 100 may further include conductive layers disposed on its surface, such as an inner conductive layer 104 and / or an outer conductive layer 105. A first shielding assembly may include conductive layers. Optionally, the inner conductive layer 104 may partially cover the inner surface of the first housing assembly 100, i.e., the inner wall of the mounting channel 103. Exemplarily, the inner conductive layer 104 may substantially surround the flexible flat cable 200 in the circumferential direction, thereby providing good electromagnetic shielding and improving the electromagnetic compatibility (EMI) performance of the electrical connector. Exemplarily, the inner conductive layer 104 may be located at the first mating end 101. The inner conductive layer 104 may extend rearward from the front surface of the first mating end 101 facing the adapter electrical connector, for example, extending at least beyond the contact pad 270. For example, the inner conductive layer 104 may extend rearward from the front surface of the first mating end 101 for 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90%, 95%, or 100% of the total length of the first housing assembly 100, or any value between them. Figure 4CAn embodiment is shown in which the inner conductive layer 104' extends the entire length of the first housing assembly 100. Optionally, the outer conductive layer 105 may partially cover the outer surface of the first housing assembly 100. Exemplarily, the outer conductive layer 105 may substantially surround the flexible flat cable 200 in the circumferential direction, thereby providing good electromagnetic shielding and improving the electromagnetic compatibility performance of the electrical connector. Exemplarily, the outer conductive layer 105 may be located at the first mating end 101. The outer conductive layer 105 may extend rearward from the front surface of the first mating end 101 facing the adapter electrical connector, for example, extending at least to the conductive ring 300. The conductive ring 300 is electrically connected to the shielding components on the board connector 20 when the cable connector 10 mates with the board connector 20. For example, the outer conductive layer 105 may extend rearward from the front surface of the first mating end 101 for 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90%, 95%, or 100% of the total length of the first housing assembly 100, or any value between them. Figure 4C An embodiment is shown in which the outer conductive layer 105' extends the entire length of the first housing assembly 100. Optionally, while the outer conductive layer 105' covers the outer surface of the first housing assembly 100 along its entire length, an inner conductive layer 104 covering a portion of the inner surface of the first housing assembly 100 may be used. Optionally, while the outer conductive layer 105' covers a portion of the outer surface of the first housing assembly 100 along its length, an inner conductive layer 104' covering the entire inner surface of the first housing assembly 100 may be used. In some embodiments, the conductive layer may continuously cover a portion or all of the surface of the first housing assembly 100. In some embodiments, the conductive layer may discontinuously cover a portion or all of the surface of the first housing assembly 100. For example, the conductive layer may be arranged in a grid pattern on the surface of the first housing assembly 100.

[0093] In an exemplary embodiment, the conductive layer may cover the entire inner surface or the entire outer surface of the first housing assembly 100. This provides a relatively good shielding effect. Exemplarily, the conductive layer can be formed by spraying, electroplating, chemical plating, or other methods. During long-term use, the portion of the conductive layer inserted into the board connector 20 may peel off due to prolonged friction. With the conductive layer covering the entire inner surface or the entire outer surface of the first housing assembly 100, the remaining conductive layer can still provide the desired shielding effect.

[0094] In a preferred embodiment, the conductive layer may cover the entire surface of the first housing assembly 100. The conductive layer is closed on the surface of the first housing assembly 100, with no edges showing its cross-section. Based on this, with appropriate adhesion between the conductive layer and the first housing assembly 100, different areas of the conductive layer can exert tensile stress on each other, further preventing the conductive layer from peeling off from the first housing assembly 100. Furthermore, a preferred method for forming the conductive layer on the first housing assembly 100 includes electrochemical plating, which is ideal, at least in terms of precisely controlling the layer thickness and ensuring layer uniformity. When the conductive layer is formed using this process, it is easier to form a continuous and complete conductive layer across the entire surface of the first housing assembly 100.

[0095] The fully enclosed conductive layer also ensures that the outer conductive layer 105 on the outer surface of the first housing assembly 100 is electrically connected to the inner conductive layer 104 on the inner surface of the first housing assembly 100. In embodiments where the flexible flat cable 200 has a shielding layer 250 on its surface, the shielding layer 250 can be electrically connected to the shielding shell 23 of the board connector 20 through the fully enclosed conductive layer. Based on this, the conductive layer and the shielding shell 23 together can form full shielding for the conductors within the cable connector 10 and the board connector 20. In addition, the shielding layer 250 can be substantially covered with the cable along the length and width directions of the flexible flat cable 200, except for the contact pad 270 which needs to be exposed. However, since the contact pad 270 is located within the insulating shell shielded by the conductive layer, the contact pad 270 can also be well shielded. Thus, the shielding layer 250, combined with the conductive layer and the shielding shell 23, can form full shielding for all conductors within the cable connector 10 and the board connector 20. Furthermore, the fully enclosed conductive layer prevents foreign matter, such as moisture and organic vapors, from penetrating between the conductive layer and the first housing assembly 100, ensuring sufficient adhesion between them and preventing peeling. In some embodiments, the conductive layer may also be configured to protect the first housing assembly 100, improving its resistance to wear, high temperatures, and corrosion.

[0096] In some embodiments, the conductive layer may include a conductive paint sprayed onto the first housing assembly 100. In other embodiments, the conductive layer may include a plating formed on the first housing assembly 100 by, for example, electrochemical plating. Electrochemical plating allows the conductive layer to be formed at virtually all locations on the first housing assembly 100, resulting in a uniform thickness and a smooth surface. In the embodiment shown in the figures, the first housing assembly 100 may include multiple independent portions. In this case, the conductive layers of the multiple portions of the first housing assembly 100 may be in electrical contact with each other, thereby forming the shielding structure surrounding the mounting channel 103 described above. In other embodiments, the first housing assembly 100 may also be integral. The first mating end 101 may be complementary in shape to the second mating end 20A of the adapted board connector 20. In some embodiments, when the first mating end 101 can be inserted into the second mating end 20A of the board connector 20, the complementary configuration can improve the connection strength between the first housing assembly 100 and the board connector 20.

[0097] In some embodiments, the first shielding assembly may further include a conductive member. The conductive member may be disposed on the first mating end 101 of the cable connector 10. The conductive member is in electrical contact with the outer conductive layer 105 or 105' disposed on the outer surface of the first housing assembly 100, and the conductive member protrudes from the mating surface of the first mating end 101 of the first housing assembly 100. In some embodiments, the mating surface of the first mating end 101 may mate with the shielding shell 23 of the board connector 20 when the first mating end 101 of the cable connector 10 mates with the board connector 20. In the illustrated embodiment, the mating surface may include at least a portion of the outer surface of the first mating end 101. In other embodiments not shown, the mating surface may include at least a portion of the front end face or at least a portion of the inner surface of the first mating end 101; or may include multiple of the aforementioned surfaces. After the cable connector 10 and the board connector 20 mate with each other, the conductive layer on the first housing assembly 100 of the cable connector 10 may be electrically connected to the shielding shell 23 of the board connector 20 through the conductive member. This improves the shielding effect.

[0098] Exemplarily, the conductive member may include one or more conductive media such as conductive contacts, conductive foam, and conductive adhesive. In one embodiment, the conductive member may be disposed on one surface of the mating end. In another embodiment, the conductive member may be disposed on multiple surfaces of the mating end. In yet another embodiment, the conductive member may be disposed around the first housing assembly 100 one or more times. In the illustrated embodiment, the mating surface is located on the outer surface of the first mating end 101. When the cable connector 10 mates with the board connector 20, the conductive member is clamped on the outer side of the second mating end of the board connector 20. In an embodiment not shown, the conductive member may be disposed inside the first mating end 101. In this case, when the cable connector 10 mates with the board connector 20, the second mating end of the board connector 20 may be inserted into the inner side of the conductive member. The conductive member may function as an electrical connection between the first housing assembly 100 and the shielding shell 23 of the board connector. In some preferred embodiments, the conductive member does not obstruct the process during the mating of the cable connector 10 with the board connector 20, or during the separation of the two. Even after a sufficient number of mating and separation cycles, the conductive member will not fail to form an electrical connection after mating.

[0099] In one specific embodiment, such as Figure 1B and Figure 2 As shown, the conductive component can be a conductive ring 300. The conductive ring 300 can be more reliably fixed to the first housing assembly 100, with a sufficiently large contact area and strength to ensure it will not detach from the first housing assembly 100. The conductive ring 300 can be fitted onto the portion of the housing assembly that mates with the adapter electrical connector. In some embodiments where the shielding shell 23 surrounds the second conductive component, the conductive ring 300 can achieve electrical connection from 360 degrees. When the cable connector 10 is subjected to an upward external force, the conductive ring 300 makes closer contact with the upper part of the shielding shell 23; when the cable connector 10 is subjected to a downward external force, the conductive ring 300 makes closer contact with the lower part of the shielding shell 23. In short, regardless of the direction of the external force, the conductive ring 300 always maintains close contact with the shielding shell 23 on at least one side, ensuring reliable electrical contact.

[0100] In some embodiments, the conductive member may be rigid. In some embodiments, the conductive member may be made of a conductive, self-lubricating material. During the mating of the cable connector 10 to the board connector 20, the shield 23 of the board connector 20 may undergo elastic deformation under the pressure of the conductive member, thereby maintaining a certain pressure between the two to avoid poor electrical contact caused by factors such as vibration.

[0101] In other embodiments, the conductive ring 300 may be made of an elastic material such as conductive rubber. In these embodiments, the shielding shell 23 may be constructed as rigid to protect the housing assembly of the board connector 10. The elasticity of the conductive ring 300 also makes it easier to install onto the first housing assembly 100. The elastic conductive ring 300 is easier to manufacture than the elastic shielding shell 23, and when the cable connector 10 is fitted onto the board connector 20, the elastic conductive ring 300 also provides a sealing function to prevent the intrusion of foreign objects.

[0102] like Figures 1A to 1B and Figure 2 As shown, the board connector 20 may include a shielding shell 23, which can serve as at least part of a second shielding assembly. The conductive ring 300 is electrically connected between the outer conductive layer 105 or 105' and the shielding shell 23 when the cable connector 10 and the board connector 20 are mated. Thus, the outer conductive layer 105 or 105' and the shielding shell 23 can form a reliable electrical connection, achieving full shielding.

[0103] Exemplarily, a recess 180 surrounding the mounting channel 103 is provided on the outer surface of the first housing assembly 100, the recess 180 being configured to receive the conductive ring 300. In some embodiments, the conductive ring 300 may be made of conductive rubber. By placing the conductive ring 300 in the recess 180, its surface is nearly flush with the outer surface of the first housing assembly 100. This prevents excessive resistance when the cable connector 10 is inserted into the board connector 20, and also prevents the conductive ring 300 from being excessively compressed and damaged. On the other hand, the conductive rubber conductive ring 300 has high friction. The recess 180 can limit the conductive ring 300, preventing it from shifting due to friction during insertion or removal of the cable connector 10 from the board connector 20. In other embodiments, the conductive ring 300 may be made of, for example, a metal material, such as an aluminum strip pressed around the recess 180 onto the outer surface of the first housing assembly 100. In embodiments where the first housing assembly 100 includes a top shell 110 and a bottom shell 120, a first recess 181 and a second recess 182 may be respectively provided on the top shell 110 and the bottom shell 120, and the first recess 181 and the second recess 182 together form an annular recess 180. The conductive ring 300 can further ensure reliable electrical connection between the conductive layers of the top shell 110 and the bottom shell 120, and reliably connect the conductive layer of the first housing assembly 100 and the shielding shell 23 of the board connector 20 when the cable connector 10 is inserted into the board connector 20, while also serving a sealing and dustproof function. In some embodiments, the conductive ring 300 can also reduce the force borne by the aforementioned latch 111 and engagement portion 121 by relying on its strength or elasticity.

[0104] To further enhance the shielding effect, by way of example, the first shielding assembly also includes a shielding layer 250 formed on the surface of each of the plurality of flexible flat cables 200. Continuing to refer to... Figure 3 As previously described, the flexible flat cable 200 may include a substrate 210, a cable conductor 220 sequentially formed on the inner surface of the substrate 210, and an insulating layer 230. The sides of the flexible flat cable 200 may have portions that do not include the cable conductor 220. These portions may consist only of the substrate 210, or may consist only of the substrate 210 and the insulating layer 230. Exemplarily, a shielding layer 250 may be provided on the second surface of the substrate 210 opposite to the first surface. Exemplarily, a shielding layer 250 may be provided on the surface of the insulating layer 230. Exemplarily, shielding layers 250 may be provided on both the second surface of the substrate 210 and the surface of the insulating layer 230. The shielding layer 250 may be spaced apart from the cable conductor 220 by the substrate 210 or the insulating layer 230. The shielding layer 250 may include one or more of the following: a metal sheet, conductive adhesive, metal foil, etc., possessing good conductivity and flexibility. This allows it to function as a shield for the conductor while minimizing its impact on the flexibility of the flexible flat cable 200. Figure 3 In the embodiment shown, the shielding layer 250 can be copper foil or aluminum foil.

[0105] Exemplarily, a plurality of flexible flat cables 200 include a first flexible flat cable 200A and a second flexible flat cable 200B. Each of the first flexible flat cable 200A and the second flexible flat cable 200B may include an inner surface 241 and an outer surface 242 opposite to the inner surface 241, with the inner surfaces 241 of the first flexible flat cable 200A and the second flexible flat cable 200B facing each other. In the embodiment shown in the figure, contact pads 270 of the first flexible flat cable 200A and the second flexible flat cable 200B may be disposed on the outer surface 242 of each of them, such that the contact pads 270 of the two cables face opposite directions. When the cable connector 10 mates with the board connector 20, the two sets of conductive terminals of the board connector 20 may press against the contact pads 270 of the first flexible flat cable 200A and the second flexible flat cable 200B respectively, facing opposite directions.

[0106] Exemplarily, the shielding layer 250 may include an inner shielding layer 251 disposed on the inner surface 241 of at least one of the first flexible flat cable 200A and the second flexible flat cable 200B. The inner shielding layer 251 extends forward to the end of the corresponding flexible flat cable 200A and / or 200B. In high-speed, high-density cable connectors, the distance between the first flexible flat cable 200A and the second flexible flat cable 200B is relatively small. Providing one or two inner shielding layers 251 between the first flexible flat cable 200A and the second flexible flat cable 200B can effectively improve signal integrity. Optionally, the first flexible flat cable 200A and the second flexible flat cable 200B may have the same construction, allowing for component standardization. Exemplarily, the inner shielding layer 251 may penetrate the flexible flat cable 200 along its length. By way of example, along the width direction of the flexible flat cable 200, the inner shielding layer 251 may at least cover all the cable conductors 220 on the flexible flat cable 200. However, this application does not preclude embodiments in which the inner shielding layer 251 exposes a portion of the cable conductors 220 of the flexible flat cable 200 along the length and / or width direction.

[0107] Exemplarily, the shielding layer 250 may include an outer shielding layer 252 disposed on the outer surface 242. The outer shielding layer 252 is spaced apart from the end of the corresponding flexible flat cable 200 to expose the end of the cable conductor 220 of the corresponding flexible flat cable 200 and form a contact plate 270. This can further improve the shielding effect. In embodiments where the first housing assembly 100 includes an inner conductive layer 104 or 104' located on its inner surface, the outer shielding layer 252 may be in electrical contact with the inner conductive layer 104 or 104'. The inner conductive layer 104 or 104' can at least shield the contact plate, thereby extending the shielding of the cable conductor 220 to the contact plate portion and improving the shielding effect.

[0108] In an embodiment where a conductive layer, such as inner conductive layers 104, 104' and outer conductive layers 105, 105', is provided on the first housing assembly 100, the conductive layer and the outer shielding layer 252 may overlap along the length direction of the flexible flat cable 200 to improve the shielding effect. Exemplarily, along the length direction of the flexible flat cable 200, the outer shielding layer 252 may extend rearward to the other end of the corresponding flexible flat cable 200. However, this application does not exclude embodiments where the outer shielding layer 252 also exposes other portions of the cable conductor 220 of the flexible flat cable 200 along its length direction. Exemplarily, along the width direction of the flexible flat cable 200, the outer shielding layer 252 may at least cover all the cable conductors 220 on the flexible flat cable 200. However, this application does not exclude embodiments where the outer shielding layer 252 exposes a portion of the cable conductor 220 of the flexible flat cable 200 along its width direction.

[0109] The inner shielding layer 251 can be disposed on the inner surface 241 of the flexible flat cable 200 without the contact plate 270. Therefore, the extension of the inner shielding layer 251 to the end of the flexible flat cable 200 will not affect the function of the contact plate 270. In other words, the inner shielding layer 251 can extend to the back of the contact plate 270, spaced apart from the contact plate 270 by the substrate 210. In contrast, the outer shielding layer 252 can only extend to the outer surface 242 near the contact plate 270, and its end can not exceed the end of the insulating layer 230 to prevent contact with the contact plate 270. Thus, the cable terminals within the flexible flat cable 200 can be wrapped in the shielding layer 250 as much as possible, exposing only the contact plate 270 that must be exposed, thereby improving electromagnetic compatibility performance. On the other hand, this facilitates the processing of the flexible flat cable 200. For example, the flexible flat cable 200 with an inner shielding layer 251 and an outer shielding layer 252 attached to its two surfaces can be cut, and the shielding layer 250 and the insulation layer 230 at the end of the inner surface 241 of the flexible flat cable 200 can be peeled off to form a contact plate 270.

[0110] In the case where an inner shielding layer 251 and an outer shielding layer 252 are respectively provided on two opposite surfaces of the flexible flat cable 200, further, at least a portion of each of the inner shielding layer 251 and the outer shielding layer 252 is wider than the corresponding flexible flat cable 200, and the widened portions of the inner shielding layer 251 and the outer shielding layer 252 are electrically connected to each other. Figure 3 and 9As shown, the portions of the inner shielding layer 251 and the outer shielding layer 252 on the separator 130 can have the same width as the flexible flat cable 200, allowing them to be mounted on the separator 130. For other portions of the flexible flat cable 200 accommodated within the mounting channel 103, the inner shielding layer 251 and the outer shielding layer 252 can be wider than the flexible flat cable 200, allowing them to make electrical contact. Exemplarily, the portions of the inner shielding layer 251 and the outer shielding layer 252 outside the first housing assembly 100 can also have a width greater than the flexible flat cable 200 and can make electrical contact with each other, thereby forming full shielding along the entire length of the flexible flat cable 200. This improves the electromagnetic compatibility performance of the flexible flat cable 200. The inner shielding layer 251 and the outer shielding layer 252 can be joined together by welding or adhesive. In some embodiments, the portions of the inner shielding layer 251 and the outer shielding layer 252 wider than the flexible flat cable 200 can only be located outside the first housing assembly 100. Exemplarily, as... Figure 14 As shown, the first housing assembly 100, such as the top housing 110 and the bottom housing 120, has space reserved to accommodate the widened portion of the shielding layer 250. Thus, the widened portion of the shielding layer 250 can extend into the first housing assembly 100, thereby enabling the cable connector 10 to have better electromagnetic compatibility performance.

[0111] As previously described, conductive layers, such as inner conductive layers 104 and 104' and outer conductive layers 105 and 105', may be formed on the inner and outer surfaces of the first housing assembly 100. These conductive layers act as shielding layers, enhancing electromagnetic compatibility (EMC). In some embodiments, the conductive layers may also make electrical contact with the shielding layer 250 of the flexible flat cable 200, achieving even better EMC. In embodiments where the inner shielding layer 251 and outer shielding layer 252 extend into the first housing assembly 100 beyond the portion of the flexible flat cable 200, the cable conductor 220 is entirely surrounded by the inner shielding layer 251, the outer shielding layer 252, and the conductive layers of the first housing assembly 100, preventing the intrusion of electromagnetic interference.

[0112] For example, a gap may exist between the housing assembly and the adjacent shielding layer along the stacking direction. For housing assemblies comprising a top and bottom shell, this prevents the shielding layer from being crushed during assembly due to tolerance factors, especially for housing assemblies made of cast metal. For one-piece housing assemblies, setting an appropriate gap prevents the installation channel size from being too small, making it difficult to insert the flat flexible cable 200, or even causing the shielding layer to peel off. The gap can be small enough that electromagnetic interference cannot affect signal transmission through it.

[0113] For example, such as Figures 4A to 4B and Figure 13As shown, each flexible flat cable 200 may include a first cable portion 281 located on the separator 130, a second cable portion 282 located outside the first housing assembly 100, and a third cable portion 283 connecting the first cable portion 281 and the second cable portion 282. The first cable portion 281 and the third cable portion 283 are ends located within the first housing assembly 100. The aforementioned cable lug 260 may be located on the first cable portion 281. Along the stacking direction, the first housing assembly 100 is spaced apart from the first cable portions 281 of the plurality of flexible flat cables 200. Along the stacking direction, the size of the third cable portion 283 of the mounting channel 103 that accommodates the plurality of flexible flat cables 200 may be larger than the total size of the stacked flexible flat cables 200. In this way, the third cable portions 283 can have a certain gap between each other or between themselves and the inner wall of the mounting channel 103 within the mounting channel 103, preventing the first housing assembly 100, such as the top shell 110 and the bottom shell 120, from exerting a large external force on the third cable portions 283. As shown in the figure, the first cable portion 281 of the flexible flat cable 200 is fixed in the stacking direction by the separator 130, but the first housing assembly 100 will not press against the shielding layer of the flexible flat cable 200, such as the outer shielding layer 252. Similarly, for the third cable portion of the flexible flat cable 200, the first flexible flat cable 200A and the second flexible flat cable 200B will not be clamped by the first housing assembly 100. This effectively prevents damage to the cable conductor 220 or the shielding layer 250 due to compression from the first housing assembly 100. Especially in applications where the flexible flat cable 200 may be subjected to pulling, the above-mentioned arrangement can prevent the shielding layer 250 from being damaged due to clamping when the part of the first housing assembly 100 in contact with the shielding layer 250 is pulled.

[0114] In some embodiments, along the stacking direction of the plurality of flexible flat cables, at least a portion of the second channel portion has a dimension smaller than the combined dimension of the ends of the plurality of flexible flat cables and the separator. In this case, the plurality of flexible flat cables extending from the separator to the second channel portion need to have a certain degree of bending to achieve an appropriate thickness for entering the second channel portion. Thus, the plurality of flexible flat cables within the second channel portion can have a tendency to extend outwards away from the separator. Consequently, the inner wall of the second channel portion abuts against the plurality of flexible flat cables, causing the inner conductive layer 104 or 104' to make electrical contact with the outer shielding layer 252. The flexible flat cables have relatively low elasticity and will not exert excessive force on the outer shielding layer 252, ensuring reliable electrical contact without damaging the outer shielding layer 252.

[0115] like Figures 4A to 4BAs shown, the separator 130 does not completely occupy the entire mounting channel 103 along its length. Exemplarily, the mounting channel 103 may include a first channel portion accommodating the separator 130 and a second channel portion located behind the first channel portion. Along the stacking direction of the plurality of flexible flat cables 200, at least a portion of the size (i.e., height) of the second channel portion may be smaller than the ends of the plurality of flexible flat cables 200 and the total size of the separator 130, such that the inner wall of the second channel portion can compress the plurality of flexible flat cables 200. Exemplarily, protruding reinforcing ribs, such as reinforcing ribs 150 of the top shell 110 and the bottom shell 120, may be provided within the first housing assembly 100 corresponding to the second channel portion. See also Figure 6B and Figure 7A The corresponding first channel portions of the top shell 110 and bottom shell 120 have first reinforcing ribs 151, and the corresponding first channel portions of the top shell 110 and bottom shell 120 have second reinforcing ribs 152. The second reinforcing ribs 152 can protrude from the first reinforcing ribs 151 toward the inward side of the mounting channel 130. Therefore, after the top shell 110 and bottom shell 120 are fastened together, the height of the first channel portion defined by the first reinforcing ribs 151 can be greater than the height of the first channel portion defined by the second reinforcing ribs 152. In this way, the second reinforcing ribs 152 can compress a plurality of flexible flat cables 200 toward the inward side. Although the flexible flat cables 200 are flexible, they also have a certain degree of rigidity, giving them the ability to maintain their original straight shape. Therefore, the flexible flat cables 200 tend to abut against the second reinforcing ribs 152. In other embodiments not shown, the top shell 110 and bottom shell 120 can also be solid, as long as they can compress the flexible flat cables 200 toward the inward side.

[0116] When an inner conductive layer 104 or 104' is provided on the inner surface of the first housing assembly 100, the surface of the second reinforcing rib 152 may also have an inner conductive layer, such as 104 or 104'. Since the flexible flat cable 200 abuts against the second reinforcing rib 152, the shielding layer 250 (e.g., the outer shielding layer 252) on the flexible flat cable 200 can make electrical contact with the inner conductive layer 104 or 104' on the second reinforcing rib 152. This allows the shielding layer 250 of the flexible flat cable 200 to make electrical contact with the conductive layer of the first housing assembly 100, facilitating connection of both to a reference voltage. Exemplarily, the conductive layer of the first housing assembly 100 can be electrically connected to the shielding shell 23 of the board connector 20 via the conductive ring 300, and the shielding shell 23 can be electrically connected to the grounding conductor on the first circuit board 30.

[0117] This disclosure also provides an economical method for assembling electrical connectors. For example... Figure 9As shown, the end of the first flexible flat cable 200A is attached to the first side of the separator 130. Exemplarily, when the separator 130 includes a plurality of first positioning pins 134 arranged along the length of the first flexible flat cable 200A, the separator lugs 133 on both sides of the separator 130 can be correspondingly positioned with cable lugs 260. During assembly, the first flexible flat cable 200A can be placed on the first side of the separator 130 along the stacking direction, such that the cable lug 260 near the front is positioned between two first positioning pins 134. After the first flexible flat cable 200A is attached to the first side of the separator 130, the first flexible flat cable 200A can be pushed forward so that the two sides of the front end of the first flexible flat cable 200A can be inserted into the corresponding first groove 131 and second groove, respectively. Figure 10 As shown. Thus, the cable lug 260 and the separator lug 133 can be aligned.

[0118] Then, the separator 130, on which the first flexible flat cable 200A is mounted, can be installed onto the bottom housing 120, with the first side facing the bottom housing 120. For example... Figure 11 As shown, the separator 130 and the first flexible flat cable 200A mounted thereon can be flipped so that the first side of the separator 130 faces the bottom shell 120. The first positioning pin 134 of the separator 130 is aligned with the positioning groove 170 of the bottom shell 120, and the separator 130 and the first flexible flat cable 200A are installed onto the bottom shell 120. Since the first flexible flat cable is fixed only by the first groove 131 and the second groove, this prevents the installed first flexible flat cable 200A from falling off during the installation of the second flexible flat cable 200B. After the separator 130 is installed onto the bottom shell 120, the bottom shell 120 can support the first flexible flat cable 200A, and the lug groove 160 can position the first flexible flat cable 200A in the length direction, preventing its position from changing. As described above, the first positioning pin 134 of the separator 130 can be inserted into the positioning groove 170 of the bottom shell 120, thereby providing a limiting function in both the stacking direction and the length direction. Therefore, it is not necessary to constantly press the first flexible flat cable 200A to prevent it from shifting or falling off. The structure after installation is as follows. Figure 12 As shown.

[0119] Continue to refer to Figure 12 The end of the second flexible flat cable 200B is attached to the second side of the separator 130, with the second side opposite to the first side. The process of attaching the end of the second flexible flat cable 200B to the second side of the separator 130 is the same as the process of attaching the first flexible flat cable 200A described above. The structure after installation is as follows: Figure 13 As shown.

[0120] Next, as Figure 14 As shown, the top shell 110 is mounted to the bottom shell 120. Exemplarily, the second locating pin 113 on the top shell 110 can be aligned with the locating hole 122 on the bottom shell 120 until the snap-fit ​​111 on the top shell 110 and the bottom shell 120 engages with the joint 121 on the bottom shell 120. Thus, the separator 130, the first flexible flat cable 200A, and the second flexible flat cable 200B can be held between the top shell 110 and the bottom shell 120. This simplifies connector assembly and reduces assembly costs.

[0121] In the above steps, the bottom shell 120 is assembled first, followed by the top shell 110. In other embodiments, the top shell 110 may be assembled first, followed by the bottom shell 120. However, the top shell 110 and the bottom shell 120 are simply given different names for distinction. Unless otherwise specified, the structure and function of the top shell and the bottom shell in this application are interchangeable. In some embodiments, the shell on which the connector locking assembly 400 is mounted may be referred to as the top shell. That is, the top shell may include a first locking feature 112 configured for operation with the connector locking assembly 400.

[0122] For example, after the top shell 110 and the bottom shell 120 are assembled, the conductive ring 300 can also be fitted onto the installed top shell 110 and bottom shell 120.

[0123] The board connector 20, which is adapted to the cable connector 10, will now be described in more detail with reference to the accompanying drawings. Figure 16 and Figure 17 As shown, the board connector 20 may include a second housing assembly and a second conductive component 22 held by the second housing assembly. The second housing assembly may include a main housing 21 and an outer housing 24. The second conductive component 22 may be held on the main housing 21. Exemplarily, the second conductive component 22 may include a plurality of conductive terminals. Exemplarily, the plurality of conductive terminals may be secured together by a retaining member 25 as shown in the embodiment, the retaining member 25 being held in the main housing 21 by a snap-fit, thereby holding the plurality of conductive terminals on the main housing 21. The retaining member 25 may be insulated. Exemplarily, in other embodiments, the plurality of conductive terminals may also be directly held on the main housing 21.

[0124] Exemplarily, the board connector 20 may include a second shielding assembly. Exemplarily, the second shielding assembly may include a shielding shell 23. The shielding shell 23 may be held between the main shell 21 and the outer shell 24. The shielding shell 23 may surround the main shell 21 in a circumferential direction surrounding the second conductive assembly 22. The board connector 20 is used to establish an electrical connection between a circuit board to be mounted (not shown) and an adapter electrical connector (e.g., the cable connector described above). The circuit board to be mounted may be a first circuit board 30 (also referred to as a "first printed circuit board" or "first PCB"). The board connector 20 may be mounted to the circuit board to be mounted, and a first mating portion of the cable connector 10 may be inserted into the board connector 20, thereby establishing an electrical connection between the circuit board to be mounted and the cable connector 10 through the board connector 20.

[0125] The main housing 21 may be made of an insulating material. Examples of insulating materials suitable for manufacturing the main housing 21 include, but are not limited to, plastics, nylon, liquid crystal polymer (LCP), polyphenylene sulfide (PPS), high-temperature nylon or polyphenylene oxide (PPO) or polypropylene (PP). The shielding shell 23, the main housing 21 and the outer shell 24 together form a second mating portion 20A for mating with the first mating end 101 of the cable connector 10.

[0126] The conductive terminals can be formed of a conductive material. Suitable conductive materials for manufacturing conductive terminals can be metals or metal alloys, such as copper or copper alloys. The conductive terminals can include electrical contact ends and mounting ends. The electrical contact ends can extend to a second mating portion 20A. The electrical contact ends can be configured to mate with a corresponding mating portion of an electrical component, such as the aforementioned cable connector 10. The mounting ends can extend beyond the second housing assembly and the second shielding assembly. The mounting ends can be configured for mounting to a circuit board, such as the aforementioned first circuit board 30. Specifically, the first circuit board 30 can include conductive portions such as conductive pads or conductive vias, and the mounting ends of the conductive terminals can be configured to be connected to the conductive portions of the first circuit board 30 by any suitable process known in the art (e.g., press-fit or soldering). Each conductive terminal can include a bent section that is bent such that the mounting end and the electrical contact end of the conductive terminal are oriented substantially perpendicular to each other. This configuration makes each conductive terminal generally straight.

[0127] Exemplarily, the main housing 21 can be secondary-formed onto the conductive terminals. In some embodiments, the main housing 21 may further include a retaining member 25 for spacing the mounting ends of the plurality of conductive terminals apart from each other. In some embodiments, the main housing 21 includes a main body portion and a reserved groove, through which all conductive terminals can be mounted onto the main body of the main housing 21, and then a retaining member 25 for fixing the mounting ends of the conductive terminals is secondary-formed by filling the groove with adhesive.

[0128] For example, the shielding shell 23 can completely enclose the main housing 21 of the board connector 20. The shielding shell 23 can be connected to the signal ground, thereby effectively shielding against external interference. Preferably, the metal sheet can be stamped into a suitable shape using a stamping process. After the main housing 21 and the second conductive component 22 of the board connector 20 are assembled, the semi-finished stamped shielding shell 23 is placed inside, and the portion of the shielding shell 23 that needs to be bent is bent, so that the shielding shell 23 completely encloses the main housing 21. For example, the lower part of the shielding shell 23 can be formed with a tenon and mortise structure. After bending, the edges of the originally separate metal sheets of the shielding shell 23 are connected to each other, thereby being able to withstand a larger force parallel to the direction of the metal sheets. Compared with welding the metal sheets of the shielding shell 23 together to form a complete whole, the tenon and mortise structure can be mass-produced quickly using a stamping process, resulting in lower cost, higher reliability, and higher yield.

[0129] Exemplarily, the shielding shell 23 may include a plate lock 23A for mounting to the first circuit board 30. As described above, the shielding shell 23 can be fixed to the first circuit board 30. Since the board connector 20 may be subjected to a certain tensile force after being connected to the cable connector 10, there are certain requirements for the connection strength between the shielding shell 23, which is the main load-bearing component, and the first circuit board 30. Preferably, the shielding shell 23 can be connected to the first circuit board 30 by soldering. In some embodiments, one side of the shielding shell 23 can be integrally soldered to the first circuit board 30 to form a reliable connection. In a preferred embodiment, the surface of the shielding shell 23 includes a plate lock 23A composed of protruding metal portions, which can be embedded in the pad vias and / or through holes of the first circuit board 30 and can also be soldered to further ensure that the shielding shell 23 is firmly locked to the first circuit board 30. The plate lock 23A can match the pad vias 31 of the first circuit board 30, which are typically slightly larger than the plate lock 23A. After the board lock 23A is inserted into the through-hole 31 of the first circuit board 30, the gap between the through-hole and the board lock 23A can be filled by soldering, thereby reliably fixing it and enabling electrical connection with the reference voltage in the first circuit board 30, such as grounding. Compared with the embodiment of directly soldering the shielding shell 23 to the first circuit board 30, the form of board lock 23A not only eliminates the need to heat the entire shielding shell 23 to ensure that the temperature at the solder joint reaches the soldering requirements, reducing the soldering difficulty; the board lock 23A passes through the first circuit board 30, and when the shielding shell 23 is under force, not only the solder joint is under force, but the substrate of the first circuit board 30 also disperses the force on the shielding shell 23, thereby preventing the solder pads at the solder joint from separating from the substrate of the first circuit board 30 under large tensile force, ensuring the firmness of the board connector 20. Preferably, the end of the board lock 23A can have a reduced size, thereby forming a step at a position where the board lock 23A is nearly flush with the lower surface of the shielding shell 23. The smaller size of the end of the plate lock 23A allows it to be inserted into the through-hole of the pad on the first circuit board 30, while the step can be locked onto the surface of the first circuit board 30 without entering the through-hole, thus limiting the shielding shell 23 and ensuring that the shielding shell 23 does not tilt. Optionally, the shielding shell 23 can be fixed to the first circuit board 30 by any suitable means such as adhesive or clips, thereby providing support and limiting the main shell 21.

[0130] For board connector 20, such as Figure 1B and Figure 17As shown, the outer sidewall of the front portion of the main housing 21 can be spaced apart from the inner sidewall of the shielding shell 23, thereby forming a second annular cavity 27 around the main housing 21. This second annular cavity 27 can receive the first mating end 101 of the cable connector 10. Since the front portion of the main housing 21 can be inserted into the first mating end 101, the front portion of the main housing 21 can be referred to as the inner layer portion of the second mating end 20A. This inner layer portion can be inserted into the first annular cavity 106 between the separator 130 of the cable connector 10 and the first housing assembly 100.

[0131] Exemplarily, the shield 23 may extend flush with the front end face of the main housing 21 (i.e., the end face of the cable connector 10 along the mating direction), extend beyond the front end face of the main housing 21, or not reach the front end face of the main housing 21. The shield 23 can provide better support for the cable connector 10 when mated with the adapted cable connector 10. Compared to the main housing 21 or the first housing assembly 100 of the adapted cable connector 10, the shield 23 can withstand greater external forces, preventing the mating position of the cable connector 10 and the board connector 20 from being broken by external forces. The front portion of the shield 23 may fit over the outside of the first housing assembly 100 of the cable connector 10 when the cable connector 10 mates with the board connector 20. Exemplarily, if the surface of the first housing assembly 100 has a conductive layer, the shield 23 may extend towards the cable connector 10 beyond the front end face of the main housing 21. In this way, the shielding shell 23 can reach the position of the conductive ring 300 on the first housing assembly 100, so that the shielding shell 23 can make electrical contact with the conductive layer on the first housing assembly 100 through the conductive ring 300.

[0132] The outer shell 24 can surround the shielding shell 23 in the circumferential direction. Exemplarily, the outer shell 24 can be installed to the shielding shell 23 by means of adhesive bonding, welding, snap-fitting, etc. The outer shell 24 may include a second locking feature 26 that mates with the connector locking assembly 400, thereby locking the cable connector 10 to the board connector 20. Exemplarily, along the front of the cable connector 10, the outer shell 24 can extend beyond or be flush with the shielding shell 23, such that after the cable connector 10 mates with the board connector 20, the outer shell 24 can surround the first mating end 101 of the cable connector 10 and lock with the connector locking assembly 400 on the cable connector 10, improving the reliability of the mating. Thus, the outer portion of the second mating end 20A of the board connector 20 can be formed by the shielding shell 23 and the outer shell 24.

[0133] Therefore, this disclosure has been described through the above-described embodiments. However, it should be understood that those skilled in the art can make many more variations, modifications, and improvements based on the teachings of this disclosure, all of which fall within the spirit and scope of the disclosure and the claims. The scope of protection of this disclosure is defined by the appended claims and their equivalents. The above embodiments are for illustrative purposes only and are not intended to limit this disclosure to the described embodiments.

[0134] Although many inventive aspects of the electronic system have been described above with reference to mutually compatible electrical connectors, it should be understood that the aspects of this disclosure are not limited thereto. As such, any one of the inventive features, whether alone or in combination with one or more other inventive features, can also be used for two mutually compatible electrical connectors or multiple mutually compatible electrical connectors, etc. Furthermore, the electrical connector can be used as a plug connector or a socket connector, and can also be an orthogonal connector, a perpendicular connector, a coplanar connector, or a right-angle connector, etc.

[0135] In the description of this disclosure, it should be understood that the orientation or positional relationship indicated by directional terms such as "front", "rear", "up", "down", "left", "right", "horizontal", "vertical", "horizontal", "top", and "bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing this disclosure and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this disclosure; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0136] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," and "above" are used herein to describe the spatial positional relationship between one or more components or features shown in the figures and other components or features. It should be understood that spatial relative terms include not only the orientation of the component as depicted in the figures but also different orientations during use or operation. For example, if the components in the figures are inverted as a whole, "above" or "above other components or features" will include cases where the component is "below" or "under" other components or features. Thus, the exemplary term "above" can include both "above" and "below." Furthermore, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this document intends to include all such cases.

[0137] It should be noted that the terminology used herein is for the purpose of describing particular implementations only and is not intended to limit the exemplary implementations according to this disclosure. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms “comprising” and / or “including” are used in this specification, they indicate the presence of features, steps, operations, parts, components and / or combinations thereof.

[0138] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this disclosure described herein can be implemented in sequences other than those illustrated or described herein.

Claims

1. A cable connector, characterized in that, include: A housing assembly, the housing assembly including a mating end, a connecting end, and a mounting channel extending from the connecting end to the mating end; Multiple flexible flat cables are stacked together, with the ends of the multiple flexible flat cables inserted from the connecting end into the mounting channel and extending to the mating end; as well as The separator is held between any adjacent flexible flat cables in the plurality of flexible flat cables, and the ends of the plurality of flexible flat cables and the separator are held within the housing assembly.

2. The cable connector as described in claim 1, characterized in that, A shielding layer is formed on the surface of each of the plurality of flexible flat cables.

3. The cable connector as described in claim 2, characterized in that, The plurality of flexible flat cables includes a first flexible flat cable and a second flexible flat cable, each of the first flexible flat cable and the second flexible flat cable including an inner surface and an outer surface opposite to the inner surface, the inner surfaces of the first flexible flat cable and the second flexible flat cable being opposite to each other. The shielding layer includes an inner shielding layer disposed on the inner surface of at least one of the first flexible flat cable and the second flexible flat cable, the inner shielding layer extending forward to the end of the corresponding flexible flat cable.

4. The cable connector as described in claim 2, characterized in that, The plurality of flexible flat cables includes a first flexible flat cable and a second flexible flat cable, each of the first flexible flat cable and the second flexible flat cable including an inner surface and an outer surface opposite to the inner surface, the inner surfaces of the first flexible flat cable and the second flexible flat cable being opposite to each other. The shielding layer includes an outer shielding layer disposed on the outer surface of at least one of the first flexible flat cable and the second flexible flat cable, the outer shielding layer being spaced apart from the end of the corresponding flexible flat cable to expose the end of the cable conductor of the corresponding flexible flat cable and form a contact plate.

5. The cable connector as described in claim 4, characterized in that, The housing assembly includes an inner conductive layer on its inner surface, and the outer shielding layer is in electrical contact with the inner conductive layer.

6. The cable connector as described in claim 5, characterized in that, The mounting channel includes a first channel portion for accommodating the separator and a second channel portion located behind the first channel portion. Along the stacking direction of the plurality of flexible flat cables, at least a portion of the second channel portion has a size smaller than the combined size of the ends of the plurality of flexible flat cables and the separator, and the inner wall of the second channel portion abuts against the plurality of flexible flat cables, such that the inner conductive layer is in electrical contact with the outer shielding layer.

7. The cable connector as described in claim 2, characterized in that, Each of the plurality of flexible flat cables includes opposing inner and outer surfaces, and the shielding layer includes an inner shielding layer disposed on the inner surface and an outer shielding layer disposed on the outer surface. For each of the plurality of flexible flat cables: At least a portion of each of the inner shielding layer and the outer shielding layer is wider than the corresponding flexible flat cable, and the widened portions of the inner shielding layer and the outer shielding layer are electrically connected to each other.

8. The cable connector as claimed in claim 1, characterized in that, The housing assembly includes an outer conductive layer located on its outer surface.

9. The cable connector as described in claim 8, characterized in that, A conductive member is provided on the mating end, the conductive member is in electrical contact with the outer conductive layer, and the conductive member protrudes from the outer surface of the mating end.

10. The cable connector as claimed in claim 9, characterized in that, The conductive component is a conductive ring.

11. The cable connector as claimed in claim 10, characterized in that, The conductive ring is elastic.

12. The cable connector as claimed in claim 8, characterized in that, The housing assembly includes an inner conductive layer located on its inner surface, the inner conductive layer being electrically connected to the outer conductive layer.

13. The cable connector as claimed in claim 12, characterized in that, A shielding layer is formed on the surface of each of the plurality of flexible flat cables, and the shielding layer is electrically connected to the inner conductive layer.

14. The cable connector as claimed in claim 1, characterized in that, For each of the plurality of flexible flat cables: The separator includes a first groove and a second groove, the first groove and the second groove extending along the length direction of the corresponding flexible flat cable and opposite to each other along the width direction of the corresponding flexible flat cable; and The two sides of the corresponding flexible flat cable are respectively inserted into the first groove and the second groove.

15. The cable connector as claimed in claim 1, characterized in that, For each of the plurality of flexible flat cables: The separator includes a boss at its front end, the boss extending along the width direction of a corresponding flexible flat cable, the corresponding flexible flat cable being disposed behind the boss and abutting against the rear surface of the boss; and The boss is higher than the contact plate of the corresponding flexible flat cable.

16. The cable connector as claimed in claim 15, characterized in that, Along the protruding direction of the boss, the rear surface of the boss is inclined rearward.

17. The cable connector as claimed in claim 1, characterized in that, The housing assembly includes a top shell and a bottom shell opposite each other along the stacking direction, with the separator and the plurality of flexible flat cables sandwiched between the top shell and the bottom shell.

18. The cable connector as claimed in claim 17, characterized in that, The two side edges of the ends of the plurality of flexible flat cables include cable lugs, and the two side edges of the separator include separator lugs. The housing assembly restricts the position of the cable lugs and the separator lugs at least along the length direction of the plurality of flexible flat cables and the stacking direction.

19. The cable connector as claimed in claim 18, characterized in that, The cable lugs and the separator lugs are aligned along the length of the plurality of flexible flat cables.

20. The cable connector as claimed in claim 17, characterized in that, One of the top shell and the bottom shell includes a snap-fit, and the other of the top shell and the bottom shell includes a joint. The buckle engages with the joint, thereby securing the top shell to the bottom shell.

21. The cable connector as claimed in claim 17, characterized in that, The separator is held between the top shell and the bottom shell, and the separator divides the front part of the mounting channel into a first mounting channel and a second mounting channel, wherein the first mounting channel and the second mounting channel receive the ends of their respective flexible flat cables, wherein: The first mounting channel is formed between the separator and the top shell; and The second mounting channel is formed between the separator and the bottom shell.

22. The cable connector as claimed in claim 21, characterized in that, At least one of the top shell and the bottom shell includes a positioning groove, and the separator includes a first positioning pin protruding along the mating direction of the top shell and the bottom shell, the first positioning pin being inserted into the positioning groove to position the separator along the length and width directions of the mounting channel.

23. The cable connector as claimed in claim 2, characterized in that, Along the stacking direction, there is a gap between the housing assembly and the adjacent shielding layer.

24. The cable connector as claimed in claim 23, characterized in that, Each of the plurality of flexible flat cables includes a first cable portion disposed on the separator, a second cable portion located outside the housing assembly, and a third cable portion connecting the first cable portion and the second cable portion. Along the stacking direction, the housing assembly is spaced apart from the shielding layer located on and adjacent to the first cable portion of the plurality of flexible flat cables, and Along the stacking direction, the size of the third cable portion of the mounting channel that accommodates the plurality of flexible flat cables is larger than the size of the plurality of flexible flat cables.

25. A method for manufacturing a cable connector, characterized in that, include: The end of the first flexible flat cable is attached to the first side of the separator; The separator containing the first flexible flat cable is installed on the bottom shell, with the first side facing the bottom shell; The end of the second flexible flat cable is attached to the second side of the separator, the second side being opposite to the first side; and The top shell is installed onto the bottom shell such that the separator is held between the top shell and the bottom shell.

26. The method as described in claim 25, characterized in that, The top shell includes a first locking feature configured for operation with a connector locking assembly.

27. The method as described in claim 25, characterized in that, The method further includes: The conductive ring is fitted onto the top and bottom shells after installation.

28. An electronic system, characterized in that, include: Cable connector as described in any one of claims 1-27; as well as An adapter electrical connector, which can be mated to the mating end of the cable connector.

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