High-reliability FBC connector and preparation method thereof

Abstract

The embodiment of the invention discloses a high-reliability FBC connector and a preparation method thereof, the connector comprises a flat cable and two groups of connectors, each connector comprises an inner core, a main body and a plurality of signal terminals, the inner core is arranged in the main body, the inner core is provided with a plurality of terminal grooves in one-to-one correspondence with the signal terminals, the signal terminals are correspondingly arranged on the terminal grooves, and the signal terminals are arranged in the terminal grooves. And the flat cable is correspondingly and electrically connected with the signal terminals of the two groups of connectors. According to the invention, high-reliability connection between the flat cable and the terminal is ensured, the connector is suitable for various PCB assembly schemes, the firmness of a product is improved, and the problem of difficult welding is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and in particular to a high-reliability FBC connector and a preparation method thereof. Background Art

[0002] Signals between PCB boards, FFC boards, etc. are transmitted through connectors. Existing connectors have poor stability and are prone to failure and poor reliability if used in high-vibration scenarios such as vehicles and motors. Summary of the invention

[0003] The technical problem to be solved by the embodiments of the present invention is to provide a high-reliability FBC connector and a preparation method thereof to improve reliability.

[0004] In order to solve the above technical problems, an embodiment of the present invention proposes a high-reliability FBC connector, including a cable and two groups of connectors, the connector including an inner core, a main body and a plurality of signal terminals, the inner core is arranged in the main body, and a plurality of terminal grooves corresponding to the signal terminals are opened on the inner core, the signal terminals are correspondingly installed on the terminal grooves, and the cable corresponds to the signal terminals of the two groups of connectors.

[0005] Furthermore, the signal terminal is composed of a first conductive part, an embedded part, and a second conductive part connected in sequence, the front end of the first conductive part is located outside the main body, the embedded part is installed on the terminal slot, and the second conductive part is correspondingly welded to the cable.

[0006] Furthermore, a clamping point is convexly provided on the embedding portion, and a corresponding clamping point groove is concavely provided in the terminal groove.

[0007] Furthermore, the signal terminals are arranged side by side in one row or multiple rows.

[0008] Furthermore, a buckle is provided at the bottom of the main body.

[0009] Furthermore, the inner core is injection molded and the main body is injection molded.

[0010] Furthermore, the flat cable is a soft flat cable.

[0011] Furthermore, the cable has a single-layer or multi-layer structure.

[0012] Accordingly, an embodiment of the present invention further provides a method for preparing a high-reliability FBC connector, comprising: Step 1: Prepare the inner core, signal terminal and cable; Step 2: Press the signal terminal into the terminal groove of the inner core to obtain the inner core equipped with the signal terminal; Step 3: Weld the inner core with signal terminals to both ends of the cable, and then injection mold the main body together. After cooling, a high-reliability FBC connector is obtained.

[0013] Furthermore, in step 3, hot-bar welding process is adopted for welding.

[0014] The beneficial effects of the present invention are as follows: the present invention ensures a high-reliability connection between the flat cable and the terminal, can be applied to a variety of PCB assembly solutions, improves the firmness of the product, and solves the problem of difficult welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural diagram of a high-reliability FBC connector according to an embodiment of the present invention at one angle.

[0016] Figure 2 It is a three-dimensional structural diagram from another angle of the high-reliability FBC connector according to an embodiment of the present invention.

[0017] Figure 3 It is a structural schematic diagram of a high-reliability FBC connector according to an embodiment of the present invention installed on a PCB board.

[0018] Figure 4 4 is an internal diagram of a connector according to an embodiment of the present invention.

[0019] Figure 5 It is a three-dimensional structural diagram of the inner core at one angle of an embodiment of the present invention.

[0020] Figure 6 It is a three-dimensional structural diagram of the inner core of an embodiment of the present invention from another angle.

[0021] Figure 7 It is a three-dimensional structural diagram of several signal terminals according to an embodiment of the present invention.

[0022] Description of Figure Numbers Cable 10 , connector 20 , inner core 21 , body 22 , terminal slot 23 , clamping point slot 24 , buckle 25 , signal terminal 30 , first conducting portion 31 , embedded portion 32 , second conducting portion 33 , clamping point 34 , PCB board 40 . DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present invention is further described in detail below in conjunction with the drawings and specific embodiments.

[0024] In the embodiments of the present invention, if there are directional indications (such as up, down, left, right, front, back, etc.), they are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0025] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0026] Please refer to Figure 1 to Figure 7 The high reliability FBC connector of the embodiment of the present invention includes a cable and two groups of connectors.

[0027] The connector includes an inner core, a main body and a plurality of signal terminals. The inner core and the main body are formed by plastic injection molding. The inner core is arranged in the main body, that is, the main body is covered on the inner core and the signal terminals. The inner core is provided with a plurality of terminal slots corresponding to the signal terminals, and the signal terminals are installed on the terminal slots, and the wiring is electrically connected to the signal terminals of the two groups of connectors. The present invention is preferably a double-row, multi-pin modular design, a Press fit / dip / SMT PCB connection method, a soft connection between FFC boards, and a non-pluggable integrated structure.

[0028] As an implementation mode, the signal terminal is composed of a first conductive part, an embedded part, and a second conductive part connected in sequence, the front end of the first conductive part is located outside the main body, the embedded part is installed on the terminal groove, and the second conductive part is welded to the corresponding wiring.

[0029] As an implementation method, a clamping point is convexly provided on the embedding portion, and a corresponding clamping point groove is concavely provided in the terminal groove. The clamping point design of the present invention increases the holding force on the plastic and prevents the signal terminal from falling off during the welding process.

[0030] As an implementation mode, the signal terminals are arranged side by side in one row or multiple rows. The flat cable is a soft flat cable. The flat cable adopts a single-layer or multi-layer structure. The front end faces of the signal terminals in the same row are preferably in the same plane, and the front end faces of the signal terminals in different rows (i.e., the front end faces of the first conductive parts) are preferably in the same plane. When the signal terminals are arranged in 2 rows, the second conductive parts of the signal terminals in the 2 rows are respectively welded to the front and back sides of the flat cable. In specific implementation, if the flat cable has 3 layers or more, the signal terminals can be correspondingly arranged in 3 rows or more.

[0031] As an implementation mode, a buckle is provided at the bottom of the main body to facilitate the user to quickly install the high-reliability FBC connector on the PCB board.

[0032] The method for preparing the high-reliability FBC connector of the present invention comprises steps 1 to 3.

[0033] Step 1: Prepare the inner core, signal terminals, and wiring harness.

[0034] Step 2: Press the signal terminal into the terminal groove of the inner core to obtain the inner core equipped with the signal terminal.

[0035] Step 3: Weld the inner core with signal terminals to both ends of the cable, and then inject and mold the main body together. Cool to obtain a high-reliability FBC connector. That is, the signal terminals are welded at both ends of the cable, and the hot-bar welding process is used to ensure a high-reliability connection between the cable and the terminal. After the cable is welded, it is assembled and molded together with the inner core.

[0036] The present invention can meet the requirements of miniaturized design and realize high-density transmission.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high reliability FBC connector, characterized in that: It includes a cable and two groups of connectors. The connector includes an inner core, a main body and a plurality of signal terminals. The inner core is arranged in the main body. The inner core is provided with a plurality of terminal slots corresponding to the signal terminals. The signal terminals are correspondingly installed on the terminal slots. The cable corresponds to the signal terminals of the two groups of connectors for electrical connection.

2. The high reliability FBC connector according to claim 1, characterized in that: The signal terminal is composed of a first conductive part, an embedded part, and a second conductive part which are connected in sequence. The front end of the first conductive part is located outside the main body, the embedded part is installed on the terminal groove, and the second conductive part is correspondingly welded to the flat cable.

3. The high reliability FBC connector according to claim 2, characterized in that: A clamping point is convexly arranged on the embedding portion, and a corresponding clamping point groove is concavely arranged in the terminal groove.

4. The high reliability FBC connector according to claim 1, characterized in that: The signal terminals are arranged side by side in one row or multiple rows.

5. The high reliability FBC connector according to claim 1, characterized in that: A buckle is provided at the bottom of the main body.

6. The high reliability FBC connector according to claim 1, characterized in that: The inner core is injection molded, and the main body is injection molded.

7. The high reliability FBC connector according to claim 1, characterized in that: The flat cable is a soft flat cable.

8. The high reliability FBC connector according to claim 1, wherein: The cable arrangement adopts a single-layer or multi-layer structure.

9. A method for preparing a high-reliability FBC connector according to any one of claims 1 to 8, characterized in that: include: Step 1: Prepare the inner core, signal terminal and cable; Step 2: Press the signal terminal into the terminal groove of the inner core to obtain the inner core equipped with the signal terminal; Step 3: Weld the inner core with signal terminals to both ends of the cable, and then injection mold the main body together. After cooling, a high-reliability FBC connector is obtained.

10. The method for preparing a high-reliability FBC connector according to claim 9, characterized in that: In step 3, hot-bar welding process is used for welding.

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