Flat cable connector

Abstract

The utility model discloses a flat cable connector comprising a pedestal, a flip cover, fixing sheets and terminals, the pedestal is provided with a caulking groove, the fixing sheets are clamped on two sides of the pedestal, the terminals are fixed on the pedestal and are provided with power connection parts which extend into the caulking groove and are electrically connected with an FPC flat cable and welding feet which extend out of the pedestal and are used for being connected with a circuit board, the flip cover is rotatably installed on the upper part of the caulking groove, and the flip cover is rotatably installed on the lower part of the caulking groove. Comprising a rear cover, a limiting groove is formed in the rear cover in the length direction of the rear cover, a fixing groove is formed in the rear end of a base, a connecting block is arranged on the rear cover, a clamping hook is formed on the connecting block in a protruding mode, a clamping groove communicated with the fixing groove and matched with the clamping hook in a clamping mode is formed in the base, and locking grooves are formed in the two side faces of the lower end of the rear cover. A clamping protrusion matched with the locking groove in a clamping mode is arranged on the base in a protruding mode. The utility model has the following advantages and effects: the rear cover can separate the terminals, and isolation is formed between the terminals and the edge of the circuit board, so that the problem of short circuit is effectively prevented, and the use performance of the product is improved.

Description

Technical Field

[0001] The utility model relates to the field of electrical connectors, and more specifically, to a sunken flat cable connector. Background Art

[0002] FPC connectors are widely used in electronic devices, mainly in electronic devices such as liquid crystal displays, scanners, mobile phones, and tablet computers, for realizing signal connection or transmission between various functional modules inside such devices or with external devices.

[0003] Existing sunken FPC connectors generally include a base, a lid, a fixing piece, and terminals. The terminals are fixed on the base, the fixing piece is snap-fitted at both ends of the base for connecting to a circuit board, and the lid is rotatably installed on the base for snap-fitting and locking the FPC flat cable. Since burrs will appear on the edges during the blanking process of the circuit board (especially the aluminum-based circuit board), and the connector lacks a structure for separating the terminals, and the burrs are also likely to come into contact with the terminals, thus causing short-circuit problems. Summary of the Utility Model

[0004] Aiming at the deficiencies existing in the prior art, the purpose of the present utility model is to provide a flat cable connector to solve the problems pointed out in the background art.

[0005] To achieve the above purpose, the present utility model provides the following technical solution: A flat cable connector includes a base, a lid, a fixing piece, and terminals. An insertion groove for inserting and mating with the FPC flat cable is provided on the base. The fixing piece is snap-fitted on both sides of the base. The terminals are fixed on the base, and there are power connection parts extending into the insertion groove for electrically connecting with the FPC flat cable and welding feet extending outside the base for connecting with the circuit board. The lid is rotatably installed on the upper part of the insertion groove and includes a rear cover. A limit groove for separating and limiting each terminal is provided along the length direction on the rear cover. A fixing groove is provided at the rear end of the base. The rear cover is provided with connection blocks located on both sides of the limit groove and snap-fitted with the fixing groove. A hook protrudes from the connection block. A snap-fitting groove communicating with the fixing groove and snap-fitted with the hook is provided on the base. Locking grooves are provided on both side surfaces at the lower end of the rear cover. A snap-fitting protrusion snap-fitted with the locking groove protrudes from the base.

[0006] The present utility model is further provided as: A positioning groove is recessed on one side of the connection block, and a positioning protrusion cooperating with it protrudes in the fixing groove.

[0007] The present utility model is further provided as: An interval snap-fitting groove communicating with the limit groove is formed on the rear cover, and the cross-section of the interval snap-fitting groove and the limit groove is L-shaped. A part of the welding foot is embedded in the interval snap-fitting groove.

[0008] The present utility model is further configured as follows: jacks are provided at both side ends of the base; the fixing piece has a fixing portion that is inserted and mated with the jacks and a bending portion that is bent 90 degrees in a direction away from the slot, and the bending portion is used for welding and fixing to the circuit board.

[0009] The present utility model is further configured as follows: the fixing portion includes a first fixing end and a second fixing end; the jack includes a first jack portion and a second jack portion; a mating protrusion that is in interference fit with the first jack portion protrudes from the first fixing end; a convex tooth is formed on one side of the second fixing end, and a pressing protrusion is formed on the other side; the convex tooth is triangular; a clamping recess located within the second jack portion is formed on the base.

[0010] The present utility model is further configured as follows: a welding groove is formed at the edge of the bending portion, forming a serrated structure.

[0011] The present utility model is further configured as follows: upwardly protruding clamping blocks are provided at both ends within the slot, and guiding inclined surfaces are formed on the clamping blocks.

[0012] The present utility model is further configured as follows: a pressing block corresponding to the clamping block protrudes from the cover; when the cover is rotated to the closed position, part of the pressing block presses against the clamping block, and the other part closely adheres to and fixes the FPC flexible cable.

[0013] The present utility model is further configured as follows: the terminal includes two clamping ends; the power connection portion is located between the two clamping ends; two connecting protrusions protrude from one side of the power connection portion, and an arc-shaped concave portion is formed on the other side.

[0014] By adopting the above technical solutions, the present utility model has the following effects: by providing the rear cover, adjacent terminals can be separated and the terminals can be limited in position, and at the same time, an isolation is formed between the edge of the circuit board and the terminals, thereby preventing short circuit problems, improving the signal integrity and stability of the connector, and improving the performance of the product in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a perspective view of an embodiment of the present utility model;

[0016] Figure 2 is a sectional view of a flexible cable connector according to an embodiment of the present utility model;

[0017] Figure 3 is a perspective view of the base and the rear cover according to an embodiment of the present utility model;

[0018] Figure 4 is a perspective view of the fixing piece according to an embodiment of the present utility model;

[0019] Figure 5 is a perspective view of the terminal according to an embodiment of the present utility model;

[0020] Figure 6 Cross-sectional view of the jack structure according to an embodiment of the present utility model;

[0021] Figure 7 Schematic diagram of an FPC cable;

[0022] Figure 8 Three-dimensional view of the rear cover and the flip cover according to an embodiment of the present utility model.

[0023] In the figure: 1, base; 12, groove; 13, clamping protrusion; 14, clamping recess; 15, clamping block; 16 - fixing groove; 2, flip cover; 3, fixing piece; 4, terminal; 41, power connection part; 42, welding leg; 43, clamping end; 44, connecting protrusion; 45, arc-shaped recess; 5, rear cover; 51, limiting groove; 52, connecting block; 53, hook; 54, locking groove; 55, positioning groove; 56, spaced clamping groove; 31, bending part; 32, first fixing end; 33, second fixing end; 34, clamping protrusion; 35, convex tooth; 36, welding groove; 21, pressing block; 6, FPC cable; 61, positioning notch; 71, first jack part; 72, second jack part. Detailed implementation manners

[0024] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0026] Refer to Figures 1 to 8A further description is given of the embodiments of the present utility model. The flexible cable connector includes a base 1, a flip cover 2, a fixing piece 3, and terminals 4. An insertion groove 12 for mating with an FPC flexible cable is provided on the base 1. The fixing piece 3 is snap-fitted on both sides of the base 1. The terminals 4 are fixed on the base 1, and there are a power connection part 41 extending into the insertion groove 12 to be electrically connected to the FPC flexible cable and welding feet 42 extending outside the base 1 for connection with a circuit board. The terminals 4 further include two snap-fit ends 43. The power connection part 41 is located between the two snap-fit ends 43. A groove is recessed on the snap-fit end 43 away from the welding feet 42, and this groove can be snap-fitted with the base 1 to prevent the detachment of the snap-fit end 43. Two connection protrusions 44 protrude from one side of the power connection part 41, and an arc-shaped concave part 45 is formed on the other side. When the FPC flexible cable is inserted into the insertion groove 12, the connection protrusions 44 are pressed against and electrically connected to the FPC flexible cable. At the same time, the arc-shaped concave part 45 gives it greater elasticity to ensure the stability of the electrical connection.

[0027] Refer to the attached Figure 2 、 3 Figure, the flip cover 2 is rotatably installed on the upper part of the insertion groove 12, and upwardly protruding clamping blocks 15 are provided at both ends in the insertion groove 12. After the FPC flexible cable is inserted into the insertion groove 12, the clamping blocks 15 cooperate with the positioning notches 61 on both sides of the FPC flexible cable to prevent the FPC flexible cable from slipping off. A guiding inclined surface is formed on the clamping block 15 on the side facing the insertion opening of the insertion groove 12 to facilitate the insertion of the FPC flexible cable. At the same time, a pressing block 21 protrudes at a position on the flip cover 2 opposite to the clamping block 15. The pressing block 21 and the clamping block 15 form an engagement, so as to form a reliable snap-fit with the positioning notches 61 on both sides of the FPC flexible cable, closing the gap between the clamping block and the flip cover, thereby strengthening the clamping effect on the FPC flexible cable, making the FPC flexible cable more firmly fixed, and more effectively preventing the detachment of the FPC flexible cable.

[0028] Exemplarily, one of the upper part of the clamping block 15 and the pressing block 21 is provided with an engagement groove, and the other of the upper part of the clamping block 15 and the pressing block 21 forms engagement teeth. When the flip cover 2 is rotated to the closed state, the engagement teeth are engaged with the engagement groove.

[0029] Refer to the attached Figure 2 、 3 Figure 8, it includes a rear cover 5. A limiting groove 51 for separating and limiting each terminal 4 is provided on the rear cover 5 along its length direction. At the same time, an interval card slot 56 communicating with the limiting groove 51 is formed on the rear cover 5, and the cross section of the interval card slot 56 and the limiting groove 51 is L-shaped. A part of the welding feet 42 is embedded in the interval card slot 56. The interval card slot is used to separate the welding feet 42 to prevent short circuits between the welding feet 42. At the same time, the welding feet 42 can also be used to limit the detachment of the rear cover 5. The L-shape is adapted to the shape of the corresponding part on the terminal 4, better separating adjacent terminals 4 to avoid short circuits in the middle of the terminals 4. At the same time, the setting of the rear cover 5 can also form an isolation between the terminal 4 and the edge of the circuit board, thereby preventing the burrs on the edge of the circuit board from contacting the terminal 4.

[0030] Moreover, the rear cover 5 is provided with connection blocks 52 located on both sides of the limiting groove 51. The base 1 is provided with fixing grooves 16 that are engaged with the connection blocks 52. A hook 53 protrudes from the connection block 52. The base 1 is provided with a clamping groove 17 that communicates with the fixing groove 16 and is engaged with the hook 53. When the hook 53 is engaged in the clamping groove 17, the rear cover 5 is fixed. In addition, locking grooves 54 are provided on both side surfaces at the lower end of the rear cover 5. A clamping protrusion 13 that is engaged with the locking grooves 54 protrudes from the base 1. One side of the clamping protrusion 13 forms an inclined surface, which facilitates the engagement and fixation between the clamping protrusion 13 and the locking grooves 54.

[0031] At the same time, a positioning groove 55 is recessed on the same side of the connection block 52 and the locking groove 54. A positioning protrusion that cooperates with the positioning groove 55 protrudes from the fixing groove 16. The positioning protrusion is hemispherical. The rear cover 5 is clamped in the clamping groove 17 by the hook 53, the clamping between the clamping protrusion 13 and the locking grooves 54, and the cooperation between the positioning groove 55 and the positioning protrusion. These three clamping fixations ensure the stable fixation of the rear cover 5 and ensure that it will not detach from the base 1.

[0032] Reference appendix Figure 4 、 6 On both ends of the base 1, there are jacks. The fixing piece 3 has a fixing portion that is inserted into the jacks and a bending portion 31 that is bent 90 degrees in the direction away from the embedding groove 12 and is welded and fixed to the circuit board. The fixing portion includes a first fixing end 32 and a second fixing end 33. The jacks include a first jack portion 71 and a second jack portion 72. A clamping protrusion 34 protrudes from the first fixing end 32, and the first fixing end 32 is in interference fit with the first jack portion 71. A convex tooth 35 is formed on one side of the second fixing end 33, and a pressing protrusion 37 is formed on the other side. The convex tooth 35 is triangular. A clamping depression 14 is formed on the base 1 and is located in the second jack portion 72. When the second fixing end 33 passes through the second jack portion 72, the clamping depression 14 abuts against the convex tooth 35 to limit the detachment of the fixing piece 3, and the pressing protrusion 37 presses against the side wall of the second jack portion 72, making the locking between the clamping depression 14 and the convex tooth 35 tighter and effectively preventing detachment. At least two welding grooves 36 are formed at the edge of the bending portion 31, thus forming a serrated structure. The multiple welding grooves 36 enable it to better absorb solder and thus connect to the circuit board more stably.

[0033] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A flexible cable connector, comprising a base, a cover, a fixing piece and terminals. An embedding groove for inserting and mating with an FPC flexible cable is provided on the base. The fixing piece is snap-connected to both sides of the base. The terminals are fixed to the base, and there are power connection parts extending into the embedding groove to be electrically connected to the FPC flexible cable and welding feet extending outside the base for connecting to a circuit board. The cover is rotatably installed at the upper part of the embedding groove, and it is characterized in that: It includes a rear cover, along the length direction of which a limiting groove is formed to separate and limit each terminal. A fixing groove is provided at the rear end of the base. The rear cover is provided with connection blocks located on both sides of the limiting groove and engaged with the fixing groove. A hook protrudes from the connection block. A clamping groove communicated with the fixing groove and engaged with the hook is provided on the base. Locking grooves are provided on both side surfaces at the lower end of the rear cover. A clamping protrusion engaged with the locking groove protrudes from the base.

2. The flexible cable connector according to claim 1, characterized in that: A positioning groove is recessed on one side of the connection block. A positioning protrusion matching with it protrudes in the fixing groove.

3. The flexible cable connector according to claim 1, characterized in that: An intermittent clamping groove communicated with the limiting groove is formed on the rear cover, and the cross section of the intermittent clamping groove and the limiting groove is L-shaped. A part of the welding leg is embedded in the intermittent clamping groove.

4. The flexible cable connector according to claim 1, characterized in that: Jacks are provided at both side ends of the base. The fixing piece has a fixing part inserted into the jack and a bending part bent 90 degrees in the direction away from the embedding groove. The bending part is used for welding and fixing with the circuit board.

5. The flexible cable connector according to claim 4, characterized in that: The fixing part includes a first fixing end and a second fixing end. The jack includes a first jack part and a second jack part. A clamping protrusion in interference fit with the first jack part protrudes from the first fixing end. A convex tooth is formed on one side of the second fixing end, and a pressing protrusion is formed on the other side. The convex tooth is triangular. A clamping depression located in the second jack part is formed on the base.

6. The flexible cable connector according to claim 4, characterized in that: Welding grooves are formed at the edge of the bending part, forming a serrated structure.

7. The flexible cable connector according to claim 1, characterized in that: Upward protruding clamping blocks are provided at both ends in the embedding groove. A guiding inclined surface is formed on the clamping block.

8. The flexible cable connector according to claim 6, wherein: A pressing block corresponding to the clamping block protrudes from the flip cover. When the flip cover rotates to be closed, part of the pressing block presses against the clamping block, and the other part closely adheres to and fixes the FPC cable.

9. The flexible cable connector according to claim 1, characterized in that: The terminal includes two clamping ends. The power connection part is located between the two clamping ends. Two connection protrusions protrude from one side of the power connection part, and an arc-shaped concave part is formed on the other side.

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