Flexible busbar electric connector

Abstract

The utility model provides a flexible bar electric connector, which comprises an insulating body, a row of signal terminals and a row of grounding terminals which are accommodated in the insulating body and are distributed front and back, an overturning cover assembled on the insulating body, and a pair of fixing pieces fixed at two ends of the insulating body, the signal terminal is assembled on the insulating body from front to back and is provided with a contact arm which extends upwards in an inclined manner; the grounding terminal is assembled on the insulating body from back to front and is provided with a top arm which is matched with the overturning cover in a pivoting manner; the turnover cover is provided with at least one through hole and a plurality of clamping grooves, the surface of the turnover cover is covered with a metal cover, and at least one elastic pressing arm which extends downwards and penetrates through the through hole is formed on the metal cover. Compared with the prior art, the metal cover is arranged on the overturning cover to realize a better signal shielding function, and the metal cover is simultaneously connected with the fixing pieces and the flexible bar at the two ends to realize a grounding function, so that the problem that the grounding and signal shielding functions of the flexible bar connector in the prior art are not enough is effectively solved.

Description

Technical Field

[0001] The utility model relates to the field of electrical connection, in particular to a flexible electrical connector. Background Art

[0002] The flexible jack connector is a small electrical connector commonly used in consumer electronic products such as computers and mobile phones. It is used to establish an electrical connection between the flexible jack and the circuit board. The flexible jack is an FPC / FFC flexible jack, which can also be called a flexible circuit board or flexible cable jack. It is used to plug into the flexible jack connector. To improve the retention force of the flexible jack after insertion and ensure the stability of the electrical connection, existing flexible jack connectors also usually include a flip cover. The flip cover is used to press the flexible jack to prevent it from being disconnected from the flexible jack connector. However, existing flexible jack connectors generally lack grounding function and have weak shielding capabilities against external interference signals, which cannot meet the usage requirements in certain application scenarios. Utility Model Content

[0003] The technical problem solved by the present invention is to provide a flexible electrical connector to improve the problem in the prior art that good grounding and shielding functions cannot be achieved.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: a flexible electrical connector, comprising an insulating body, a row of signal terminals and a row of ground terminals accommodated in the insulating body and distributed in the front and back, a flip cover assembled on the insulating body, and a pair of fixing parts fixed at both ends of the insulating body, the signal terminals are assembled on the insulating body from front to back and are provided with a contact arm extending upwardly and obliquely, the ground terminals are assembled on the insulating body from back to front and are provided with a top arm pivotally engaged with the flip cover; the flip cover is provided with at least one through hole and a plurality of clamping grooves, and the surface of the flip cover is covered with a metal cover, and the metal cover is formed with at least one spring arm extending downward and passing through the through hole.

[0005] Furthermore, the insulating body is provided with a bottom wall and a top wall, and the bottom wall is provided with a plurality of lower grooves for accommodating the signal terminals. The lower grooves extend in the front-to-back direction, and the rear ends of the lower grooves pass through the bottom wall downwardly and form holes on the bottom wall.

[0006] Furthermore, the signal terminal is accommodated in the lower groove and is provided with a base and a mounting arm extending forward from the front end of the base out of the bottom wall. The contact arm extends upward and obliquely from the rear end of the base and protrudes from the bottom wall to contact the soft row. The extended end of the contact arm is provided with a stop arm extending downward into the lower groove.

[0007] Furthermore, the stop arm is integrally connected to the contact arm, the stop arm is located inside the bottom wall and abuts upward against the bottom wall, the stop arm and the hole are arranged correspondingly above and below, and the hole is located directly below the stop arm to provide downward displacement space for the stop arm.

[0008] Furthermore, the metal cover is provided with a longitudinal base plate, a pair of snap arms extending downwardly from the longitudinal ends of the base plate, and a plurality of folding arms extending downwardly from the two side edges of the base plate. An opening and a crimping portion located below the opening are formed on the snap arm, and the crimping portion is in crimping contact with the fixing piece.

[0009] Furthermore, the flip cover is provided with a longitudinal main cover plate, mounting portions protruding outward from both longitudinal ends of the main cover plate, the through hole passes through the main cover plate in the vertical direction, and the main cover plate is provided with a plurality of retaining grooves for accommodating the plurality of folding arms; both longitudinal ends of the flip cover are provided with limiting protrusions protruding outward, and the limiting protrusions are engaged with the snap arms.

[0010] Furthermore, a longitudinally extending mounting groove is formed on the upper surface of the main cover plate to accommodate the metal cover, and a pair of downwardly protruding bosses are formed on the lower surface of the main cover plate, and the pair of bosses are respectively located at the longitudinal ends of the main cover plate and are arranged adjacent to the limiting protrusion.

[0011] Furthermore, a T-shaped barrier is provided between two adjacent lower grooves of the bottom wall, the boss portion protrudes downward beyond the top surface of the T-shaped barrier, and the outer surface of the boss portion cooperates with the snap arm of the metal cover.

[0012] Furthermore, the grounding terminal is provided with a vertically arranged main arm and a top arm extending horizontally forward from the top of the main arm. The front end of the top arm is provided with a notch pivotally engaged with the flip cover, and the notch is formed on the lower surface of the top arm from bottom to top.

[0013] Compared with the existing technology, the present invention achieves better signal shielding function by setting a metal cover on the flip cover, and uses the metal cover to connect with the fixing parts and the flexible strip at both ends to achieve grounding function, which effectively improves the problem of lack of grounding and signal shielding function of the flexible strip connector in the existing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional assembly diagram of the flexible electrical connector of the present invention.

[0015] Figure 2 This is a partial enlarged view of the flexible electrical connector of the present invention.

[0016] Figure 3This is a three-dimensional exploded view of the flexible electrical connector of the present invention.

[0017] Figure 4 It is a partial enlarged view of the flip cover and metal cover of the flexible electrical connector of the present invention.

[0018] Figure 5 This is an internal cross-sectional view of the flexible electrical connector of the present invention.

[0019] Figure 6 This is a diagram showing the matching of the metal cover and the fixing piece of the flexible electrical connector of the present invention.

[0020] Figure 7 This is a diagram showing the coordination between the metal cover and the fixing member of the flexible electrical connector of the present invention from another perspective. DETAILED DESCRIPTION

[0021] See also Figures 1 to 7 As shown, the utility model provides a flexible busbar electrical connector 100, comprising: an insulating body 10, a plurality of terminals 20 accommodated in the insulating body 10, a pair of fixing members 30 fixed at both ends of the insulating body 10, a flip cover 40 assembled on the insulating body 10, and a metal cover 50 fixed on the flip cover 40. The insulating body 10 is used to carry the terminals 20 and the fixing members 30, and the fixing members 30 are used to weld and fix the insulating body 10 on a circuit board, and the terminals 20 are used to be crimped into contact with the flexible busbar.

[0022] like Figure 2 and Figure 3 As shown, the insulating body 10 includes a top wall 11, a bottom wall 12 and a pair of side walls 13. The top wall 11 and the bottom wall 12 are longitudinally elongated, and their longitudinal ends are integrally connected to the pair of side walls 13. The top wall 11 is located on the rear side of the bottom wall 12 and is higher than the bottom wall 12, thereby protruding from the bottom wall 12. The upper surface of the top wall 11 is flush with the upper surfaces of the pair of side walls 13, and a plurality of upper grooves 14 are opened in the top wall 11. The bottom wall 12 is provided with a plurality of lower grooves 15 arranged at equal intervals. The lower grooves 15 and the upper grooves 14 on the top wall 11 together constitute a receiving groove for accommodating the plurality of terminals. Preferably, a T-shaped partition 16 is provided between two adjacent lower grooves 15 of the bottom wall 12 (see Figure 5 ), used to clamp and limit the side edge of the terminal 20. Preferably, one end of the lower groove 15 extends downward through the bottom wall 12 and forms a hole 18 on the bottom surface of the bottom wall 12. A clamping groove 17 for accommodating the fixing member 30 is provided on the inner side of the side wall 13, and the clamping groove 17 extends from front to rear.

[0023] like Figure 3 and Figure 5As shown, the terminal 20 includes a row of signal terminals 21 and a row of ground terminals 22 distributed in the front and back directions, wherein the signal terminal 21 is in the shape of an elongated strip and is inserted into the lower groove 15 of the bottom wall 12 from front to back, and the ground terminal 22 is inserted into the upper groove 14 in the top wall 11 from back to front, and the signal terminal 21 and the ground terminal 22 are distributed in the front and back directions. Specifically, the signal terminal 21 is fixed on the bottom wall 12, and is provided with a horizontally extending elongated base 23, a contact arm 24 extending obliquely upward from the rear end of the base 23, and a mounting arm 25 extending forward from the front end of the base 23 out of the bottom wall 12. The contact arm 24 protrudes upward from the bottom wall 12 to be crimped into contact with the soft row, and the extension length of the contact arm 24 in the front and back directions is greater than the length of the mounting arm 25 and the base 23. Preferably, the mounting The mounting arm 25 extends to the outside of the insulating body 10 for welding to a circuit board. Preferably, the extended end of the contact arm 24 is provided with a stop arm 26 extending downward into the lower groove 15. The stop arm 26 is integrally connected to the contact arm 24. The stop arm 26 is located in the bottom wall 12 and abuts upward on the bottom wall 12. It should be noted that the stop arm 26 and the hole 18 are arranged in correspondence with each other above and below. The hole 18 is located directly below the stop arm 26. When the contact arm 24 is crimped into contact with the soft row and elastically displaced downward, the stop arm 26 can be displaced downward into the hole 18. That is, the setting of the hole 18 on the bottom wall 12 provides more downward displacement space for the stop arm 26, thereby making the deformation range of the contact arm 24 larger, avoiding the risk of the stop arm 26 directly abutting against the bottom wall 12 and being easily crushed and deformed. The grounding terminal 22 is provided with a vertically arranged main arm 27, a top arm 28 extending horizontally forward from the top of the main arm 27, and a welding arm 29 extending horizontally backward from the bottom of the main arm 27. The main arm 27 and the top arm 28 form an L-shaped structure. The welding arm 29 extends backward from the insulating body to be welded to the circuit board. The front end of the top arm 28 is provided with a notch 281 that cooperates with the flip cover 40. The notch 281 is concave from bottom to top and is formed on the lower surface of the top arm 28.

[0024] like Figure 4As shown, the flip cover 40 is provided with a longitudinal main cover plate 41, and mounting portions 42 protruding outward from both longitudinal ends of the main cover plate 41. The inner edge of the main cover plate 41 is formed with a plurality of narrow slots 43 and a pivot shaft 44 located in the narrow slot 43. The narrow slot 43 is used to accommodate the top arm 28 of the grounding terminal 22, and the pivot shaft 44 is received in the recess 281. Preferably, a pair of through holes 45 and a plurality of retaining grooves 46 are further formed on the main cover plate 41. The through holes 45 pass through the main cover plate 41, and the retaining grooves 46 are used to retain and fix the metal cover 50. Preferably, a limiting protrusion 47 protruding outward is further provided at both longitudinal ends of the main cover plate 41. The limiting protrusion 47 is used to retain and fix with both ends of the metal cover 50. Figure 6 As shown. Preferably, a longitudinally extending mounting groove 48 is formed on the upper surface of the main cover plate 41 for mounting the metal cover 50, and the through holes 45 are distributed in the mounting groove 48. Preferably, a pair of downwardly protruding bosses 49 are formed on the lower surface of the main cover plate 41, and the pair of bosses 49 are respectively located at the longitudinal ends of the main cover plate 41 and are arranged adjacent to the limiting bosses 47. The bosses 49 are arranged at the longitudinal ends of the soft row, and play a certain limiting role on the soft row. Preferably, the bosses 49 protrude downward beyond the top surface 16A of the T-shaped partition 16, see Figure 7 As shown, the outer surface of the boss portion 49 cooperates with the snap arm 52 of the metal cover 50 .

[0025] The metal cover 50 is provided with a longitudinal base plate 51, a pair of snap arms 52 extending downward from the longitudinal ends of the base plate 51, and a plurality of folding arms 53 extending downward from the two side edges of the base plate 51. The base plate 51 is in the form of a sheet and covers the surface of the main cover plate 41 and is accommodated in the mounting groove 48. A pair of spring arms 54 extending downwardly at an angle are formed on the base plate 51. The spring arms 54 extend downward through the through hole 45 on the main cover plate 41 to be pressed onto the surface of the soft row through the through hole 45 to provide grounding and pressing functions. The pair of snap arms 52 are clamped on the limiting protrusions 47 at both ends of the main cover plate 41, and the multiple folding arms 53 are embedded in the clamping grooves 46, thereby achieving a fixed combination of the metal cover 50 and the flip cover 40. Preferably, an opening 55 and a crimping portion 56 located below the opening 55 are formed on the snap arm 52, and the opening 55 is sleeved on the limiting protrusion 47. The crimping portion 56 is used to crimp with the fixing member 30 to achieve interference fixation.

[0026] The fixing member 30 is provided with an insert arm 31 extending backward, and a pressing piece 32 located at the front end of the insert arm 31 and folded inward. The insert arm 31 is inserted into the side wall 13 of the insulating body and fixed in the card slot 17. The pressing piece 32 is inwardly pressed against the crimping portion 56, thereby achieving connection with the metal cover 50 and grounding at the same time.

[0027] In summary, the present invention achieves better signal shielding function by setting a metal cover 50 on the flip cover 40, and uses the metal cover 50 to simultaneously connect with the fixing parts 30 and the flexible strip at both ends to achieve grounding function, which effectively improves the problem of lack of grounding and signal shielding function of the flexible strip connector in the prior art.

[0028] The above description is only the best embodiment of the present invention and does not limit the present invention in any form. Any technician familiar with the field can make many possible changes and modifications to the technical solution of the present invention using the above-disclosed method content without departing from the scope of the technical solution of the present invention, which all fall within the scope of protection of the claims.

Claims

1. A flexible electrical connector comprising an insulating body, a row of signal terminals and a row of ground terminals housed in the insulating body and arranged in a front-to-rear manner, a flip cover assembled on the insulating body, and a pair of fixing members fixed to opposite ends of the insulating body, characterized in that: The signal terminal is assembled on the insulating body from front to back and is provided with a contact arm extending upwardly and obliquely. The ground terminal is assembled on the insulating body from back to front and is provided with a top arm pivotally engaged with the flip cover. The flip cover is provided with at least one through hole and a plurality of retaining grooves, and the surface of the flip cover is covered with a metal cover, and the metal cover is formed with at least one spring arm extending downward and passing through the through hole.

2. The flexible electrical connector according to claim 1, wherein: The insulating body is provided with a bottom wall and a top wall. The bottom wall is provided with a plurality of lower grooves for accommodating the signal terminals. The lower grooves extend in the front-to-back direction, and the rear ends of the lower grooves pass through the bottom wall downwardly to form holes on the bottom wall.

3. The flexible electrical connector according to claim 2, wherein: The signal terminal is accommodated in the lower groove and is provided with a base and a mounting arm extending forward from the front end of the base out of the bottom wall. The contact arm extends upward and obliquely from the rear end of the base and protrudes from the bottom wall to contact the flexible row. The extended end of the contact arm is provided with a stop arm extending downward into the lower groove.

4. The flexible electrical connector according to claim 3, wherein: The stop arm is integrally connected to the contact arm, the stop arm is located inside the bottom wall and abuts against the bottom wall upward, the stop arm and the hole are arranged correspondingly up and down, and the hole is located directly below the stop arm to provide downward displacement space for the stop arm.

5. The flexible electrical connector according to claim 4, wherein: The metal cover is provided with a longitudinal base plate, a pair of snap arms extending downward from the longitudinal ends of the base plate, and a plurality of folding arms extending downward from the two side edges of the base plate. An opening and a crimping portion located below the opening are formed on the snap arm, and the crimping portion is in crimping contact with the fixing piece.

6. The flexible electrical connector according to claim 5, wherein: The flip cover is provided with a longitudinal main cover plate and mounting portions protruding outward from both longitudinal ends of the main cover plate. The through hole passes through the main cover plate in the vertical direction. The main cover plate is provided with a plurality of retaining grooves for accommodating the plurality of folding arms. Both longitudinal ends of the flip cover are provided with limiting protrusions protruding outward, and the limiting protrusions are engaged with the snap arms.

7. The flexible electrical connector according to claim 6, wherein: The upper surface of the main cover plate is formed with a longitudinally extending mounting groove to accommodate the metal cover, and the lower surface of the main cover plate is formed with a pair of downwardly protruding bosses, which are respectively located at the longitudinal ends of the main cover plate and are adjacent to the limiting protrusions.

8. The flexible electrical connector according to claim 7, wherein: A T-shaped partition is provided between two adjacent lower grooves of the bottom wall, the boss portion protrudes downward beyond the top surface of the T-shaped partition, and the outer surface of the boss portion cooperates with the snap arm of the metal cover.

9. The flexible electrical connector according to claim 8, wherein: The grounding terminal is provided with a vertically arranged main arm and a top arm extending horizontally forward from the top of the main arm. The front end of the top arm is provided with a notch which is pivotally engaged with the flip cover. The notch is formed on the lower surface of the top arm and is concave from bottom to top.

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