阅读说明：本技术 线缆连接器 (Cable connector ) 是由 李栋 于 2020-03-27 设计创作，主要内容包括：本发明提供了一种线缆连接器,能够解决现有线缆连接器中线缆与印制板两面同时焊接而导致的操作繁琐、焊接一致性差的问题。线缆连接器包括线缆；连接在线缆两端的连接器；处于线缆的至少一端的连接器包括：在其相对的或相邻的两边缘位置分别设有的用于与适配连接器插接的导电触片以及用于与线缆的线芯连接的焊接端子；导电触片和焊接端子之间相互对应且通过电路连通,而能够将线缆的线芯与对应导电触片导通；电路板具有在厚度方向上相对的第一侧面和第二侧面；导电触片分布于第一侧面和第二侧面上,焊接端子处于第一侧面和第二侧面的其中一个上。(The invention provides a cable connector which can solve the problems of complex operation and poor welding consistency caused by simultaneous welding of a cable and two sides of a printed board in the conventional cable connector. The cable connector includes a cable; connectors connected to both ends of the cable; a connector at least one end of a cable includes: the opposite or adjacent two edge positions are respectively provided with a conductive contact piece for being plugged with the adaptive connector and a welding terminal for being connected with a wire core of the cable; the conductive contact pieces and the welding terminals are mutually corresponding and communicated through a circuit, so that a wire core of the cable can be communicated with the corresponding conductive contact pieces; the circuit board has a first side surface and a second side surface opposite to each other in the thickness direction; the conductive contacts are distributed on the first side surface and the second side surface, and the welding terminals are arranged on one of the first side surface and the second side surface.)

1. In the case of a cable connector, the cable connector,

a cable;

connectors connected to both ends of the cable;

it is characterized in that the preparation method is characterized in that,

a connector at least one end of a cable includes:

the opposite or adjacent two edge positions are respectively provided with a conductive contact piece for being plugged with the adaptive connector and a welding terminal for being connected with a wire core of the cable;

the conductive contact pieces and the welding terminals are mutually corresponding and communicated through a circuit, so that a wire core of the cable can be communicated with the corresponding conductive contact pieces;

the circuit board has a first side surface and a second side surface opposite to each other in the thickness direction;

the conductive contacts are distributed on the first side surface and the second side surface, and the welding terminals are arranged on one of the first side surface and the second side surface.

2. The cable connector of claim 1, wherein the conductive contacts on the first side are first contacts, the conductive contacts on the second side are second contacts, and all of the solder terminals are on the first side; the first contact piece is conducted with the corresponding welding terminal through a first circuit; the second contact piece is conducted with the corresponding welding terminal through a second circuit, and the second circuit comprises a second side surface conductive segment on the second side surface and a conductive body extending from the second side surface to the first side surface.

3. The cable connector of claim 2, wherein the electrical conductors are copper plated vias.

4. The cable connector of claim 2, wherein the second circuit further includes a first side segment on the first side, the first side segment having an end connected to the conductive contact and the second side segment having an end connected to the solder terminal.

5. The cable connector of claim 1, wherein the circuit board includes a rectangular main board, and the conductive contact pads and the solder terminals are respectively disposed at two opposite edges of the rectangular main board in a width direction and are arranged in a length direction of the rectangular main board.

6. The cable connector according to any one of claims 1-5, wherein the cable has a plurality of wires, the wire core of each cable is connected to the corresponding soldering terminal, the plurality of cables are arranged in the arrangement direction of the soldering terminals, and the circuit board is further directly or indirectly connected to a cable holder for fixing the cable.

7. The cable connector of claim 6, wherein two ends of one edge of the array of solder terminals of the circuit board are respectively extended with a cantilever perpendicular to the edge, and the cable holder is fixedly connected to the cantilever.

8. The cable connector of claim 7, wherein the cable holder is an injection molded part, and the cantilever arm is embedded in the cable holder.

9. The cable connector of claim 7, wherein the plurality of cables are arranged between the two cantilevers and end near one edge of the array of solder terminals of the circuit board.

10. The cable connector of claim 7, wherein the cable retainer is at an end of the cantilever arm distal from the circuit board and spaced from the circuit board.

Technical Field

The invention relates to the technical field of connectors, in particular to a cable connector.

Background

The existing cable connector for transmitting high-frequency signals mainly comprises a cable and a PCB board, wherein: the cable generally comprises conductors, a shielding layer and an insulating layer are coated outside each conductor, one exposed end of each conductor is welded to a PCB, and the PCB is connected with external equipment, so that high-speed signals can be transmitted to the PCB and then to the external equipment along the lines of the conductors.

For example, a cable connector assembly disclosed in patent document No. CN104348014B, entitled 2017.01.18, includes a Printed Circuit Board (PCB) having conductive pads disposed on the upper and lower surfaces thereof; the cable connector assembly further comprises leads which are divided into an upper row and a lower row and are arranged, the leads positioned on the upper row are welded with the conducting strips on the upper surface of the printed circuit board, and the leads positioned on the lower row are welded with the conducting strips on the lower surface of the printed circuit board.

The cable connector assembly functionally realizes signal transmission, but has some structural problems: the two sides of the printed circuit board are provided with conducting strips welded with the cables, the position of the printed circuit board needs to be moved to weld the cables on the two sides of the printed circuit board, the cable and the conducting strips need to be aligned again after the printed circuit board is moved to enable the cables and the conducting strips to be located at correct welding positions, the operation is complex, the cable is formed by a plurality of long and thin wire cores, the wire diameters of the wire cores are small, the welding area of the wire cores is small, and the consistency of welding of the two sides of the printed circuit board is difficult to guarantee.

Disclosure of Invention

The invention aims to provide a cable connector which can solve the problems of complex operation and poor welding consistency caused by simultaneous welding of a cable and two sides of a printed board in the conventional cable connector.

In order to achieve the above purpose, the cable connector of the present invention adopts the following technical solutions:

a cable connector, comprising:

a cable;

connectors connected to both ends of the cable;

a connector at least one end of a cable includes:

the opposite or adjacent two edge positions are respectively provided with a conductive contact piece for being plugged with the adaptive connector and a welding terminal for being connected with a wire core of the cable;

the conductive contact pieces and the welding terminals are mutually corresponding and communicated through a circuit, so that a wire core of the cable can be communicated with the corresponding conductive contact pieces;

the circuit board has a first side surface and a second side surface opposite to each other in the thickness direction;

the conductive contacts are distributed on the first side surface and the second side surface, and the welding terminals are arranged on one of the first side surface and the second side surface.

The beneficial effects are that: because the welding terminal for being connected with the central line core in the cable is located on one side, so the operator only can position at one of them side when putting up the central line core, and the operation is more convenient. Meanwhile, the wire cores of the cable are welded on the same side face of the circuit board, so that the welding quality is guaranteed, the welding consistency of the wire cores is high, and the stability of the cable connector in signal transmission is guaranteed.

Furthermore, the conductive contact piece on the first side surface is a first contact piece, the conductive contact piece on the second side surface is a second contact piece, and all the welding terminals are arranged on the first side surface; the first contact piece is conducted with the corresponding welding terminal through a first circuit; the second contact piece is conducted with the corresponding welding terminal through a second circuit, and the second circuit comprises a second side surface conductive segment on the second side surface and a conductive body extending from the second side surface to the first side surface.

The beneficial effects are that: the second circuit is designed into the second side surface conductive segment arranged on the second side surface and the conductive body which can extend from the second side surface to the first side surface, and the method is a common mode in the circuit board processing technology, is convenient to process and has a simple structure.

Further, the conductor is a copper plated via hole.

The beneficial effects are that: the circuit board is provided with the copper-plated through holes to communicate with circuits on two side surfaces of the circuit board, so that the conductive contact pieces and the welding terminals arranged on different surfaces of the circuit board can be easily conducted, and the method is simple and easy to implement.

Furthermore, the second circuit also comprises a first side surface conductive section positioned on the first side surface, the end part of the first side surface conductive section is connected with the conductive contact piece, and the end part of the second side surface conductive section is connected with the welding terminal.

The beneficial effects are that: the second circuit mainly comprises a first side surface conductive section, a conductive body and a second side surface conductive section, technicians can adjust the flow direction of current by changing the shape of the conductive section on the side surface of the circuit board without modifying the appearance of the conductive body, the arrangement mode of the circuit is flexible, and meanwhile, the connection stability can be ensured.

Furthermore, the circuit board comprises a rectangular main board, and the conductive contact and the welding terminal are respectively arranged at two opposite edges of the rectangular main board in the width direction and are arranged in the length direction of the rectangular main board.

The beneficial effects are that: the rectangular main board has simple structure and is more convenient to process; and the shape of the rectangular main board is more regular, which is convenient for the planning and design of the overall layout of the cable connector.

Furthermore, the cable has many, and the sinle silk of each cable is connected with corresponding welding terminal, and many cables arrange in welding terminal's array orientation, still directly or indirectly be connected with the cable holder of fixed cable on the circuit board.

The beneficial effects are that: the cable fixing piece is connected to the circuit board, tensile acting force can be provided for the cable, the cable is prevented from being detached from the circuit board, and connection stability is guaranteed.

Furthermore, two ends of one side edge of the arrangement welding terminal of the circuit board are respectively and outwards extended to be perpendicular to the edge, and the cable holding piece is fixedly connected with the cantilever.

The beneficial effects are that: the cantilever is arranged on the circuit board, and the cantilever is used for providing a mounting position for the cable holding piece, so that the overall size of the circuit board can be reduced, and the cable connector is more compact in structure.

Further, the cable fixing piece is an injection molding piece, and the cantilever is embedded in the cable fixing piece.

The beneficial effects are that: the cable fixing piece is made of the injection molding piece, when the cable is fixed, the cable can be fixed with the circuit board and clamped tightly through one-time injection molding, the efficiency is high, and the cantilever is embedded into the cable fixing piece, so that the fixing effect is reliable.

Furthermore, a plurality of cables are arranged between the two cantilevers, and the end part of the cable is close to one side edge of the arrangement welding terminal of the circuit board.

The beneficial effects are that: the cable connected with the welding terminal is enclosed between the two cantilevers, the two cantilevers form a protection space, the part of the cable connected with the welding terminal can be protected, and the connection reliability is guaranteed.

Further, the cable holder is located at an end of the cantilever away from the circuit board and spaced apart from the circuit board.

The beneficial effects are that: the connecting position of the cable fixing piece is positioned at the end part, far away from the circuit board, of the cantilever, a wire pressing operation space is formed between the connecting position of the cable fixing piece and the circuit board, a technician can install a wire pressing body in the wire pressing operation space before installing the cable fixing piece, the wire pressing body is used for ensuring that the position of the welded cable and the position of the circuit board are in a fixed state, and the cable fixing piece is favorably and accurately and quickly installed.

Drawings

Fig. 1 is a schematic view of a cable and circuit board connection structure in an end connector of embodiment 1 of the cable connector of the present invention;

FIG. 2 is a schematic view of the connector of FIG. 1 with a cable retainer disposed thereon;

FIG. 3 is a schematic view of a first side of the circuit board of FIG. 1;

FIG. 4 is a schematic diagram of a second side of the circuit board of FIG. 1;

in the figure:

10-a circuit board; 11-solder terminals; 111-a first terminal; 112-a second terminal; 12-conductive contact pads;

121-a first contact; 122-a second contact; 13-a first circuit; 14-a first side conductive segment; 15-copper plated via holes;

16-a cantilever; 17-a second side conductive segment; 20-a cable; 21-a cable core; 22-a wire core; 30-cable holder.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The features and properties of the cable connector according to the present invention will be described in further detail with reference to the following embodiments.

Embodiment 1 of the cable connector of the present invention: the cable connector includes a cable and connectors connected to two ends of the cable, wherein the connector at one end mainly includes a circuit board 10 and a cable 20 connected to the circuit board 10 as shown in fig. 1 and 2, and the structure of the circuit board 10 and the structure of the cable 20 will now be described.

The circuit board 10 includes a rectangular main board having first and second sides opposed in a thickness direction, i.e., upper and lower surfaces corresponding to those shown in fig. 1. On the upper surface and the lower surface, a conductive contact 12 (also referred to as a gold finger in the industry) for plugging and matching with the adapter connector is arranged on one of the long side edges, the conductive contacts 12 are arranged at intervals along the length direction of the rectangular main board, and the positions of the conductive contacts on the upper surface and the lower surface correspond to each other in the up-down direction.

On the first side in the rectangle mainboard, be the upper surface, with being provided with the opposite side of conductive contact 12 long side department be provided with welded terminal 11, welded terminal 11 also arranges along the length direction interval of rectangle mainboard, welded terminal 11 is used for welding with cable 20, and corresponds each other and through the circuit intercommunication between conductive contact 12 and the welded terminal 11, makes the signal can transmit to the adapter connector along the route of cable 20 to circuit board 10.

As shown in fig. 3 and 4, in the circuit board 10 of the present embodiment, the soldering terminals 11 are provided only on the first side surface of the main body, and the conductive contact pieces 12 are arranged on both the first surface and the second surface, and the conductive contact pieces 12 are divided into the first contact pieces 121 on the first side surface and the second contact pieces 122 on the second surface. Since the solder terminals 11 are connected to each of the conductive contact pieces 12, the solder terminals 11 are also divided into first terminals 111 connected to the first contact pieces 121 and second terminals 112 connected to the second contact pieces 122.

The first side of the rectangular main board is printed with a first circuit 13 which can directly communicate with a first contact sheet 121 and a first terminal 111 on the first side, a second contact sheet 122 and a second terminal 112 are respectively positioned on two sides of the rectangular main board, the rectangular main board is provided with a second circuit which communicates with the second contact sheet 122 and the second terminal 112, the second circuit comprises a first side conductive section 14 connected with the second terminal 112 at the upper end part of the first side, a second side conductive section 17 connected with the second contact sheet 122 at the upper end part of the second side, and a conductive body which is arranged along the thickness direction of the rectangular main board and extends from the second side to the first side, and the conductive body can communicate with the first side conductive section 14 and the second side conductive section 17.

The conductor in this embodiment is a copper plated via hole 15, openings at two ends of the copper plated via hole 15 intersect with ends of the first side conductive segment 14 and the second side conductive segment 17, respectively, a copper conductor is attached to an inner wall of the copper plated via hole 15, and the copper conductor is connected to the first side conductive segment 14 and the second side conductive segment 17, respectively, so that the first side conductive segment 14 on the first side is communicated with the second side conductive segment 17 on the second side, and current can be transmitted through the copper conductor in the copper plated via hole 15.

The cable 20 in the present embodiment includes eight cable cores 21 arranged side by side, so the solder terminals 11 on the circuit board 10 are also divided into eight groups correspondingly. Four wire cores 22 are integrated in each cable core 21, each group of welding terminals 11 is correspondingly provided with four welding terminals, the four welding terminals are correspondingly welded with the wire cores 22, and each group of welding terminals 11 is only welded with the wire cores 22 in the same cable core 21.

The first side surface of the circuit board 10 is divided into a left half side and a right half side in the length direction as shown in fig. 1 and 2, four sets of the soldering terminals 11 are arranged in the left half side, and the second terminal set, the first terminal set, the second terminal set and the first terminal set are arranged in sequence from left to right, so that the corresponding circuits are also divided into the first side surface conductive segments 14, the first circuits 13, the first side surface conductive segments 14 and the first circuits 13 which are arranged in groups, and the circuits are arranged alternately.

Four groups of welding points are also arranged in the right half side of the rectangular main board, and are a first terminal group, a second terminal group and a first terminal group in sequence from left to right, so that the corresponding circuits are also divided into a first circuit 13, a first side conductive segment 14 and a first circuit 13, and the first side conductive segment 14 is arranged between the first circuits 13. It should be noted that the number of the conductive contact pieces 12 on the circuit board 10 is larger than that of the soldering terminals 11, so that some of the conductive contact pieces 12 are communicated with the soldering terminals 11 through corresponding circuits, and some of the conductive contact pieces 12 are in a standby state.

Since the cable 20 is connected to the conductive contacts 12 on the circuit board 10 by soldering, a cable holder 30 is also arranged in the connector for fixing the cable cores 21 in order to ensure the soldering. Specifically, two short sides of the rectangular main board, that is, two ends of one side edge of the array of solder terminals 11, are extended with cantilevers 16 respectively in a direction away from the conductive contact pieces, the two cantilevers 16 and the side edge of the rectangular main board close to the solder terminals 11 enclose a U-shaped space, the end of each cable core 21 in the cable 20 is located in the U-shaped space, and the wire core 22 in the cable core 21 is placed on the solder terminal 11 to be connected to the solder terminal 11 by soldering.

The cable holder 30 in this embodiment is a strip-shaped structure formed by injection molding, each cantilever 16 is embedded in the cable holder 30 to support the strip-shaped cable holder 30, the matching position of the cable holder 30 and the cantilever 16 is the end of the cantilever 16 far away from the circuit board 10, and the cable holder 30 and the side of the rectangular main board have an interval. The cable core 21 is passed through the cable holder 30 to be soldered to the soldering terminal 11 on the circuit board 10, and the strip-shaped cable holder 30 can clamp the cable core 21 to keep the cable core 21 and the circuit board 10 in a relatively fixed position, so as to prevent the wire core 22 in the cable core 21 from being soldered to the soldering terminal 11.

In the cable connector of the present embodiment, one end of the cable is connected to the connector provided in the above embodiment, and in other embodiments, the connectors provided in the above embodiments may be used for both ends of the cable. Meanwhile, the cable connector in the present invention is not limited to adopt the solution provided in embodiment 1, and may adopt the technical solutions provided in the following embodiments:

embodiment 2 of the cable connector of the present invention: the difference from the above embodiment is that in the present embodiment, the second circuit connecting the second contact piece and the corresponding solder terminal includes: a second side conductive segment on the second side and a conductive body extending from the second side to the first side. The end part of the conductor close to the first side surface is directly conducted with the welding terminal on the first side surface, and the other end of the conductor is conducted with the second side surface conductive segment. When the cable is soldered to the solder terminal on the first side, current can be transferred along the path of the cable-the solder terminal-the electrical conductor-the second side conductive segment-the second contact. In other embodiments, the conductor is embedded in the board body of the circuit board, the end of the conductor close to the first side surface is communicated with the soldering terminal on the first side surface, and the end of the conductor close to the second side surface is communicated with the second contact piece on the second side surface, and the scheme of arranging the conductive segment on the surface of the board body of the circuit board is not limited to the scheme of arranging the conductive segment on the surface of the board body of the circuit board.

Embodiment 3 of the cable connector of the present invention: the difference from the above embodiment is that in this embodiment, the conductor connecting the second side conductive segment and the first side conductive segment is a buried hole buried in the circuit board, and is not limited to a structure using a mature copper-plated via hole, and at this time, two ends of the buried hole are respectively connected to the first side conductive segment and the second side conductive segment.

Embodiment 4 of the cable connector according to the present invention is different from the above embodiments in that the circuit board in this embodiment still includes a rectangular main board, and the two adjacent edges of the rectangular main board are disposed with soldering terminals and conductive contacts, respectively, and the conductive contacts and the soldering terminals are not limited to be disposed at two opposite edges.

Embodiment 5 of the cable connector of the present invention: the cable fixing piece is directly installed on the board surface of the circuit board, the cable fixing piece in the embodiment is a pressing plate, a buckle is arranged on the pressing plate, a bayonet penetrating through the board body in the thickness direction is arranged on the board body of the circuit board, the buckle of the pressing plate is tightly clamped in the bayonet of the circuit board and is fixed relative to the circuit board, and the board body of the pressing plate can press the cable on the board body of the circuit board at the moment to prevent the cable from being dislocated and being detached from the welding terminal. The connection of the pressure plate to the circuit board may be replaced, for example, by using threaded fasteners to press the pressure plate against the body of the circuit board. In other embodiments, if the number of cable cores in the cable is small, or the welding area between the cable cores and the welding terminals is large and firm, the cable holder may not be provided.

Embodiment 6 of the cable connector of the present invention: the difference from the above embodiment is that in this embodiment, the cable holder is a split structure, which is divided into an upper split and a lower split opposite to the first side and the second side of the circuit board, and the cable is clamped by the split of the two splits. At the moment, the upper petal and the lower petal are provided with installation spaces corresponding to the cantilever on the circuit board, when the two petals are closed, the cantilever can be clamped, and the cantilever also provides an installation position and support in the up-down direction for the cable holding piece.

Embodiment 7 of the cable connector of the present invention: the difference from the above embodiment is that, in this embodiment, the cantilever is not only disposed at both ends of one side edge of the circuit board where the soldering terminals are arranged, but also disposed on the side edge where the soldering terminals are arranged, and the cantilever is arranged between the cores of the cables in a spaced manner, and the invention is not limited to the arrangement of the cables and the cantilever.

Embodiment 8 of the cable connector of the present invention: the difference from the above embodiment is that in this embodiment, the cable holding member still adopts an injection molding piece, and can wrap the cable and embed the cantilever therein, and at this time, the cable holding member is connected with the middle position of the cantilever, so that the whole cable holding member is in a state of being attached to the side edge of the circuit board.

The above-mentioned embodiments, the objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.