Flat cable connector with cable locking structure

Abstract

The utility model provides a flat cable connector with a cable locking structure. The flat cable connector comprises a base, a front terminal, a rear terminal and a locking cover, the front part of the base is provided with a flat cable socket, the front terminal is arranged at the front end of the base, the upper part of the rear end of the base is provided with an opening, the lock cover is arranged in the opening and is suitable for overturning between a locking position and an unlocking position, and the rear terminal is fixed at the rear end of the base and extends forwards to form a limiting arm; locking pieces are arranged at the two side ends of the opening in the base, each locking piece is provided with an elastic arm arranged in the front-back direction, each elastic arm is provided with a lock hook, cam parts are arranged at the two ends of the lock cover, and when the lock cover is located at the locking position, the lock hooks extend downwards into the flat cable socket; the cam part drives the elastic arm to generate upward deformation and drives the lock hook to move upward; the flat cable connector provided by the utility model is reasonable in structure, can effectively lock the flat cable, is also convenient in cable dismounting operation, can effectively ensure the use performance of a product, and has good practicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric connector especially relates to a flat cable connector with wire locking structure. BACKGROUND

[0002] Flat cable connector is a kind of electronic connector specially used for connecting flat cable. Because flat cable has flexibility and small space occupation, they are widely used between electronic devices and components needing efficient wiring or limited space. However, at present, some flat cable connectors have unreasonable design in flat cable locking structure, which leads to flat cable easy to slip off abnormally in actual use, this situation not only affects the stability of connection, but also reduces the overall performance of flat cable connector. Therefore, optimizing the design of locking structure will be the key measure to improve the reliability of flat cable connector. SUMMARY

[0003] To this end, the utility model provides a kind of flat cable connector that can effectively lock flat cable and be easily unlocked.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme:

[0005] The utility model provides a kind of flat cable connector with wire locking structure, including base, front terminal, rear terminal and lock cover, the front part of base is equipped with flat cable socket, the front terminal is located in the front end of base, the rear end of base upper portion is provided with the open mouth that is connected with flat cable socket, the lock cover is installed in the open mouth and is suitable for turning over between locking position and unlocking position, the rear terminal is fixed in the rear end of base, and there is limit arm that is formed to limit lock cover to the front extension, the both sides end of open mouth is equipped with locking piece, the locking piece has the elastic arm that is set along front and back direction, the elastic arm has the lock hook that is protruded downward, the both ends of lock cover have cam portion that is correspondingly extended to the lower side of elastic arm, when lock hook is protruded downward into flat cable socket when the lock cover is in locking position, when the lock cover is rotated to unlocking position, cam portion drives elastic arm to produce upward deformation and drives lock hook to move upward.

[0006] In some embodiments, the shaft portion and the empty slot are provided on the corresponding position of the lock cover and each rear terminal, the limit arm has the shaft slot that is formed to limit the cooperation of the shaft portion, the limit arm is avoided by the empty slot when the lock cover is in locking position, and the positioning insertion hole that is inserted and cooperated with the front end of the limit arm is provided on the front side wall of the open mouth.

[0007] In some embodiments, the lower edge of the limit arm has the ground contact that is protruded into the flat cable socket, and the ground contact is suitable for forming contact with the grounding area on the flat cable.

[0008] In some embodiments, the ground contact is semicircular, triangular or inverted trapezoidal.

[0009] In some embodiments, a clamping position one is arranged on the base, a clamping position two is arranged on the lock cover, and the clamping position one and the clamping position two form clamping cooperation when the lock cover is in the locking position.

[0010] In some embodiments, the clamping position one is arranged on the side wall of the open two ends, and the clamping position two is correspondingly arranged at the two ends of the lock cover.

[0011] In some embodiments, the locking member is provided with a fixed part and a soldering leg connected to the bottom of the fixed part, the base is provided with a fixed slot and an avoiding slot connected thereto, and when the locking member is installed on the base, the fixed part is inserted into the fixed slot from top to bottom, and the avoiding slot avoids the soldering leg.

[0012] In some embodiments, the lock hook is formed by bending from the elastic arm, the front side of the lock hook forms an inclined angle suitable for guiding the insertion of the wire, and the rear side of the lock hook forms a hook edge.

[0013] In some embodiments, a plurality of terminal positioning grooves are arranged at intervals at the bottom of the wire insertion port, the front terminal is inserted into the terminal positioning groove from front to back, an electrically connected leg is arranged on the front part of the front terminal and protrudes out of the base, and an elastic electrically connected arm protrudes into the wire insertion port at the rear part of the front terminal; the elastic electrically connected arm extends obliquely in the direction of the wire insertion port, and the end of the elastic electrically connected arm has a downward bending part.

[0014] In some embodiments, the rear terminal has a fixed leg protruding out of the base.

[0015] The utility model has the following positive effects: the utility model optimizes the structure of the wire connector, reliably locks the wire through the locking member, and conveniently unlocks the wire when the wire is removed, thereby ensuring the use performance of the product; when the lock cover is in the locking position, the lock hook protrudes into the wire insertion port, thereby locking the wire inserted into the wire insertion port (specifically, the lock hook is clamped into the clamping port of the wire), ensuring reliable connection between the wire and the wire connector, when the lock cover rotates to the unlocking position, the cam portion drives the elastic arm to deform upward and drives the lock hook to move upward, thereby unlocking the wire, so that the wire can be pulled out of the wire insertion port, and the operation is convenient; when the lock cover is rotated to the locking position, the force of the cam portion on the elastic arm gradually disappears, and the elastic arm gradually resets downward. BRIEF DESCRIPTION OF DRAWINGS

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the ribbon cable connector and the ribbon cable in this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the ribbon cable connector in this utility model;

[0019] Figure 3 for Figure 2 A schematic diagram of the ribbon cable connector from another perspective;

[0020] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle;

[0021] Figure 5 This is an exploded view of the ribbon cable connector in this utility model;

[0022] Figure 6 for Figure 5 A magnified view of a portion of point B in the middle;

[0023] Figure 7 This is a schematic diagram of the locking component in this utility model;

[0024] Figure 8 for Figure 7 A structural schematic diagram of the locking element from another perspective;

[0025] Figure 9 This is a top view of the ribbon cable connector in this utility model;

[0026] Figure 10 For along Figure 9 A sectional view cut along the CC line;

[0027] Figure 11 For along Figure 9 A sectional view cut along the DD line;

[0028] Figure 12 For along Figure 9 A sectional view cut along the EE line;

[0029] Figure 13 This is a schematic diagram of the structure of the ribbon cable in this utility model;

[0030] Figure 14 The lock cover in this utility model (corresponding to the cut position)Figure 10 ) in the unlocked position.

[0031] Reference signs shown in the figure: 1 - base; 11 - flat cable insertion opening; 111 - terminal positioning groove; 12 - open mouth; 13 - positioning insertion hole; 14 - fixing slot; 15 - avoiding slot; 2 - front terminal; 21 - elastic power supply arm; 22 - power supply pin; 23 - bending part; 3 - rear terminal; 31 - limiting arm; 311 - shaft groove; 32 - grounding contact; 33 - fixing pin; 4 - lock cover; 41 - cam part; 42 - shaft part; 43 - avoiding groove; 5 - locking piece; 51 - elastic arm; 511 - lock hook; 512 - inclined angle; 513 - hook edge; 52 - fixing part; 53 - soldering pin; 6 - first clamping position; 7 - second clamping position; 8 - flat cable; 81 - clamping opening; 82 - grounding area. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0033] In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it. When the combination of technical solutions appears to be contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the present application.

[0034] The flat cable connector in the embodiments of the present application has a wire locking structure, as shown in Figures 1 to 12 , which specifically comprises a base 1, a front terminal 2, a rear terminal 3, a lock cover 4 and a locking piece 5. The base 1 serves as the main supporting component of the connector, and a flat cable insertion opening 11 is arranged at the front part of the base 1, which is used for inserting a flat cable. The front terminal 2 is arranged at the front end of the base 1 and is used for electrical connection with the flat cable. The rear end upper part of the base 1 is provided with an open mouth 12 which is connected with the flat cable insertion opening 11. The lock cover 4 is arranged in the open mouth 12 and is adapted to be flipped between a locked position and an unlocked position. The rear terminal 3 is fixed at the rear end of the base 1, and the rear terminal 3 has a limiting arm 31 extending forward to limit the lock cover 4, and the limiting arm 31 is used for limiting the installation of the lock cover 4.

[0035] Referring to Figures 1 to 5 and Figure 12 and Figure 13As shown, in order to realize the locking of the flat cable 8, the two side ends of the opening 12 are provided with locking members 5, the locking members 5 are provided with elastic arms 51 arranged along the front-rear direction, the elastic arms 51 are provided with downwardly protruding locking hooks 511, the locking cover 4 is provided with cam portions 41 corresponding to the lower side of the elastic arms 51, when the locking cover 4 is in the locking position, the locking hooks 511 are downwardly inserted into the flat cable insertion opening 11, thereby locking the flat cable 8 inserted into the flat cable insertion opening 11 (specifically, the locking hooks 511 are clamped into the clamping openings 81 of the side portions of the flat cable 8), ensuring the reliable connection of the flat cable 8 and the flat cable connector, when the locking cover 4 is rotated to the unlocking position, the cam portions 41 drive the elastic arms 51 to be upwardly deformed and drive the locking hooks 511 to be upwardly moved, thereby realizing the unlocking of the flat cable 8 (as shown in Figure 14 Thus, the flat cable 8 can be pulled out of the flat cable insertion opening 11; when the locking cover 4 is rotated to the locking position, the elastic arms 51 are gradually reset downwardly, the structure in the embodiment can effectively lock the flat cable 8 when the connection is performed, and can conveniently unlock the flat cable 8 when the disconnection is performed; the cross-sectional shape of the cam portions 41 can be non-circular or circular with the center deviated from the rotation axis of the locking cover 4, thereby realizing the different forces on the elastic arms 51 during the rotation of the cam portions 41 and the locking cover 4.

[0036] The front terminal 2 and the rear terminal 3 are separately arranged, the front terminal 2 mainly conducts between the flat cable 8 and the circuit board, compared with the integrated terminal, the structure of the terminal is simplified, the transmission loss is reduced, the use environment of high-speed and high-frequency signal transmission can be better adapted, and the product performance is effectively improved. Moreover, in the case of meeting the use requirements, the number of the rear terminal 3 is less than that of the front terminal 2 in the embodiment.

[0037] Specifically, referring to Figure 11 As shown, a plurality of terminal positioning grooves 111 are arranged at the bottom of the flat cable insertion opening 11, the terminal positioning grooves 111 extend along the front-rear direction, the front terminal 2 is inserted into the terminal positioning groove 111 from front to back, the front terminal 2 is provided with an electrically connecting leg 22 protruding out of the base 1 in front, the electrically connecting leg 22 is used for welding with the circuit board to realize the electrical connection, the rear of the front terminal 2 is provided with an elastic electrically connecting arm 21 protruding into the flat cable insertion opening 11, after the flat cable is inserted into the flat cable insertion opening 11, the elastic electrically connecting arm 21 contacts the gold fingers on the flat cable 8 to realize the electrical connection; the elastic electrically connecting arm 21 extends obliquely into the flat cable insertion opening 11, and the end of the elastic electrically connecting arm 21 is provided with a downwardly bent portion 23, the bent portion 23 can prevent the end of the elastic electrically connecting arm 21 from being scratched by the flat cable 8.

[0038] Continuously referring to Figure 11The rear end 3 has a fixed leg 33 extending backward from the base 1, which is welded with the circuit board and combined with the electrically connected leg 22 to effectively enhance the reliability of the fixed leg of the flat cable connector on the circuit board.

[0039] In combination Figure 1 , Figure 4 and Figure 5 , the lock cover 4 has a shaft part 42 and a clearance groove 43 at the corresponding position of each rear end 3, and the limiting arm 31 has a shaft groove 311 combined with the shaft part 42 to form a limiting position, which forms a resistance limiting position for the shaft part 42, thereby ensuring that the lock cover 4 can be reliably and flexibly installed on the base 1; when the lock cover 4 is in the closed position, the limiting arm 31 is avoided by the clearance groove 43, thereby preventing the limiting arm 31 from limiting the movement of the lock cover 4; in order to effectively limit the limiting arm 31, a positioning insertion hole 13 is provided on the front side wall of the opening 12, which is inserted and combined with the front end of the limiting arm 31, and the cooperation of the positioning insertion hole 13 and the limiting arm 31 can limit the front end of the limiting arm 31, thereby ensuring the limiting effect of the limiting arm 31 on the lock cover 4.

[0040] Further, as shown in Figure 11 , the lower edge of the limiting arm 31 has a grounding contact 32 protruding into the flat cable insertion port 11, so that the grounding contact 32 contacts the grounding area 82 of the flat cable 8 to achieve the purpose of grounding; in order to prevent the grounding contact 32 from stopping the flat cable 8 when the flat cable is inserted into the flat cable insertion port 11, the grounding contact 32 is preferably semicircular, triangular or inverted trapezoidal (i.e. wide at the top and narrow at the bottom).

[0041] In combination Figure 3 and Figure 4 , the base 1 is provided with a first clamping part 6, and the lock cover 4 is provided with a second clamping part 7, and when the lock cover 4 is in the closed position, the first clamping part 6 and the second clamping part 7 form a clamping combination to limit the lock cover 4, and the first clamping part 6 is a clamping groove, and the second clamping part 7 is a clamping table; as a variant, the first clamping part 6 can also be a clamping table, and the second clamping part 7 is a clamping groove. Preferably, the first clamping part 6 is provided on the side wall at both ends of the opening 12, and the second clamping part 7 is provided at both ends of the lock cover 4, so that the two ends of the lock cover 4 are clamped with the two ends of the base 1, thereby effectively limiting the lock cover 4.

[0042] In combination Figure 3 , Figure 4 and Figure 7 and Figure 8As shown, the locking member 5 is provided with a fixed part 52 and a soldering leg 53 connected to the bottom of the fixed part 52, the base 1 is provided with a fixed slot 14 and an avoiding slot 15 connected in communication, when the locking member 5 is installed on the base 1, the fixed part 52 is inserted into the fixed slot 14 from top to bottom, the locking member 5 is positioned and installed on the base 1 through the cooperation between the fixed part 52 and the fixed slot 14, the avoiding slot 15 avoids the soldering leg 53, so that the soldering leg 53 and the base 1 do not interfere with each other when the locking member 5 is installed on the base 1, the soldering leg 53 can be welded with the circuit board to strengthen the fixed connection between the cable connector and the circuit board.

[0043] In combination Figure 10 And Figure 11 As shown, the locking hook 511 is formed by bending from the elastic arm 51, the front side of the locking hook 511 is formed with an inclined angle 512 suitable for guiding the insertion of the cable, so that the existence of the inclined angle 512 can prevent the cable 8 from interfering when the cable 8 is inserted into the cable insertion port 11, the rear side of the locking hook 511 is formed with a hook edge 513, the hook edge 513 is stopped by cooperating with the edge of the bayonet 81 on the cable 8 to prevent the cable 8 from slipping out of the cable insertion port 11.

[0044] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A flat cable connector with a locking structure, comprising a base (1), a front terminal (2), a rear terminal (3) and a locking cover (4); the base (1) is provided with a flat cable insertion opening (11) at the front end, the front terminal (2) is arranged at the front end of the base (1), an opening (12) is arranged at the upper part of the rear end of the base (1) and is communicated with the flat cable insertion opening (11), the locking cover (4) is arranged in the opening (12) and is adapted to be flipped between a locking position and an unlocking position, the rear terminal (3) is fixed at the rear end of the base (1) and has a limiting arm (31) extending forward to limit the locking cover (4); characterized in that, The open end (12) is provided with locking members (5) at both ends, the locking members (5) are provided with elastic arms (51) in the front-rear direction, the elastic arms (51) are provided with downwardly protruding hooks (511), the locking cover (4) is provided with cam portions (41) corresponding to the lower side of the elastic arms (51), when the locking cover (4) is in the locked position, the hooks (511) are inserted into the cable socket (11), when the locking cover (4) is turned to the unlocked position, the cam portions (41) drive the elastic arms (51) to deform upwardly and drive the hooks (511) to move upwardly.

2. The flat cable connector with a locking structure according to claim 1, characterized by, The locking cover (4) is provided with shaft portions (42) and clearance grooves (43) at positions corresponding to the rear terminals (3), the limiting arms (31) are provided with shaft grooves (311) for limiting cooperation with the shaft portions (42), and the locking cover (4) avoids the limiting arms (31) through the clearance grooves (43) when the locking cover (4) is in the locked position; the front side wall of the open end (12) is provided with positioning insertion holes (13) for insertion cooperation with the front ends of the limiting arms (31).

3. The flat cable connector with a locking structure according to claim 2, characterized by, The lower edge of the limiting arm (31) is provided with a grounding contact (32) protruding into the cable socket (11), and the grounding contact (32) is adapted to contact the grounding area (82) of the cable (8).

4. The flat cable connector with a locking structure according to claim 3, characterized by, The grounding contact (32) is semicircular, triangular or inverted trapezoidal.

5. The flat cable connector with a locking structure according to claim 2, wherein The base (1) is provided with a first clamping portion (6), and the locking cover (4) is provided with a second clamping portion (7), and the first clamping portion (6) and the second clamping portion (7) are clamped and cooperated when the locking cover (4) is in the locked position.

6. The flat cable connector with a locking structure according to claim 5, wherein The first clamping portion (6) is arranged on the side wall of the open end (12), and the second clamping portion (7) is arranged at the corresponding position of the two ends of the locking cover (4).

7. The flat cable connector with a locking structure according to Claim 1, wherein The locking member (5) is provided with a fixed portion (52) and a welding leg (53) connected to the bottom of the fixed portion (52), the base (1) is provided with a fixed insertion groove (14) and a clearance notch (15) connected in communication, and when the locking member (5) is installed on the base (1), the fixed portion (52) is inserted into the fixed insertion groove (14) from top to bottom, and the clearance notch (15) avoids the welding leg (53).

8. The flat cable connector with a locking structure according to Claim 1, wherein The hook (511) is bent from the elastic arm (51), the front side of the hook (511) is provided with an inclined angle (512) suitable for guiding the cable to be inserted, and the rear side of the hook (511) is provided with a hook edge (513).

9. The flat cable connector with a locking structure according to Claim 1, wherein A plurality of terminal positioning grooves (111) are arranged at intervals in the bottom of the cable socket (11), the front terminal (2) is inserted into the terminal positioning groove (111) from front to back, the front terminal (2) is provided with an electrically connected leg (22) protruding forwardly from the base (1), and the rear portion of the front terminal (2) is provided with an elastic electrically connected arm (21) protruding into the cable socket (11); the elastic electrically connected arm (21) extends obliquely to the inside of the cable socket (11), and the end of the elastic electrically connected arm (21) is provided with a downwardly bent portion (23).

10. The flat cable connector with a locking structure according to Claim 1, wherein The rear terminal (3) is provided with a fixed leg (33) protruding rearwardly from the base (1).

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