Electric connector assembly

Abstract

The utility model provides an electric connector assembly, which comprises a base connector and a connecting plug matched with the base connector in a plugging way, the base connector comprises an insulating body and a terminal accommodated in the insulating body, and a plugging groove is formed in the insulating body and is used for a flexible printed circuit (FPC) to insert; the connecting plug comprises a metal sleeve and an operating rod mounted on the metal sleeve, the metal sleeve is provided with an upper cover plate, a lower cover plate and a pair of mounting parts which are integrally connected, and the operating rod is fixed on the pair of mounting parts and is buckled and connected with the base connector through overturning operation, so that the base connector surrounds the inner side of the operating rod. Compared with the prior art, the electric connector assembly has the advantages that the FPC is inserted into the base connector through the connecting plug, and the reliable and stable locking force is provided by using the operating rod and the metal sleeve of the connecting plug, so that the pull-out force of the FPC is increased, and the stable contact is ensured while the strength requirement of a product is met.

Description

Technical Field

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

[0002] With the development trend of miniaturization, lightness and thinness of consumer electronic products such as notebooks, tablet computers and mobile phones, the requirements for the design and manufacturing process of their components are getting higher and higher. Due to the increasing thinness and lightness of the products, the internal space has become very narrow, which requires a dense layout inside the products. The volume of each electronic component is getting smaller and smaller, and thinner and thinner, and the requirements for the manufacturing process and the reliability of product connection are getting higher and higher. For example, an FPC flexible board connector is a commonly used small electrical connector, which is used to achieve electrical connection between an FPC flexible board and a mating connector or device. However, since the volume of the FPC flexible board connector is usually relatively thin, small and light, it is difficult to provide reliable and stable plugging and unplugging force and connection strength, resulting in easy loosening after insertion, thus affecting the stability of electrical connection. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide an electrical connector assembly to improve the poor plugging and unplugging force and connection strength of the FPC flexible board in the prior art.

[0004] To solve the above technical problem, the utility model adopts the following technical scheme: an electrical connector assembly, including a base connector and a plug head inserted and matched with the base connector. The base connector includes an insulating body and terminals received in the insulating body. A plugging groove is formed in the insulating body for inserting an FPC flexible board; the plug head includes a metal sleeve and an operating rod installed on the metal sleeve. The metal sleeve is provided with an upper cover plate, a lower cover plate and a pair of mounting parts integrally connected. The operating rod is fixed on the pair of mounting parts and is buckled and connected with the base connector through a flipping operation to surround the base connector inside the operating rod.

[0005] Further, a cavity for accommodating the FPC flexible board is formed between the upper cover plate and the lower cover plate. The upper cover plate is provided with a pair of limiting elastic arms, which extend obliquely outward in the horizontal direction and are provided with a stop flap bent downward.

[0006] Further, the limiting flap protrudes downward into the cavity and clamps on both sides of the FPC flexible board and abuts forward against the protruding parts on both sides of the FPC flexible board, and narrow slots are formed on both sides of the limiting elastic arm to provide space for deformation or displacement of the limiting elastic arm.

[0007] Further, the upper cover plate and the lower cover plate are integrally connected by a pair of side retaining arms, and an outlet for the flexible printed circuit (FPC) to pass through is formed between the side retaining arms and the upper and lower cover plates. The side retaining arms are located on the left and right sides of the outlet, and the protruding portions on both sides of the FPC are limited between the side retaining arms and the retaining flaps in the front-rear direction.

[0008] Further, the mounting portions protrude outward from the left and right sides of the upper cover plate and the lower cover plate, and mounting grooves for accommodating the operating rod are formed in the mounting portions; the operating rod is provided with a horizontally extending bar, a pair of side bars and a pair of pivoting ends integrally connected, and the pivoting ends are mounted in the mounting grooves.

[0009] Further, the length extension direction of the horizontally extending bar is perpendicular to the plugging direction of the plug connector and the base connector, and the length extension direction of the side bars is parallel to the plugging direction of the plug connector and the base connector.

[0010] Further, the insulating body is provided with a rear end wall and a pair of supporting convex portions protruding rearward from the rear end wall. The supporting convex portions are located at the left and right ends of the rear end wall to support the horizontally extending bar.

[0011] Further, the base connector further includes a metal housing, and a pair of locking convex arms protruding outward are formed on the metal housing. The locking convex arms are in snap-fit with the side bars of the operating rod.

[0012] Compared with the prior art, in the electrical connector assembly of the present utility model, the flexible printed circuit (FPC) is inserted into the base connector through the plug connector, and the operating rod and the metal sleeve of the plug connector are used to provide a reliable and stable locking force, thereby increasing the pulling-out force of the FPC and ensuring stable contact while meeting the product strength requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a perspective view of the electrical connector assembly of the present utility model before plugging.

[0014] Figure 2 is a perspective view of the electrical connector assembly of the present utility model after plugging.

[0015] Figure 3 is a perspective view of the electrical connector assembly of the present utility model from another perspective after plugging.

[0016] Figure 4 is a perspective view of the plug connector of the electrical connector assembly of the present utility model before plugging with the FPC.

[0017] Figure 5 is a perspective view of the plug connector of the electrical connector assembly of the present utility model after plugging with the FPC. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Please refer to Figures 1 to 5 As shown, the present utility model provides an electrical connector assembly 100, including: a base connector 10, and a plug connector 20 that is plugged and mated with the base connector 10. The plug connector 20 is used to fix a flexible board 200 and insert it into the base connector 10, so as to reliably fix the flexible board 200 in the base connector 10 and achieve stable and reliable electrical connection.

[0019] Refer to Figure 1 and Figure 2 As shown, the base connector 10 includes an insulating body 11, a plurality of terminals 12 received in the insulating body 11, and a metal housing 13 covering the surface of the insulating body 11. The insulating body 11 is provided with a top wall 110, a bottom wall 111, a front end wall 112, and a rear end wall 113. A long and narrow plugging slot 114 is formed between the top wall 110 and the bottom wall 111. The front end wall 112 is not covered by the metal housing 13. The plugging slot 114 penetrates through the front end wall 112 and forms a notch 115 on the front end wall 112 for the flexible board 200 to be inserted. As Figure 3 shown, a supporting convex portion 116 protruding backward is formed on the rear end wall 113. Preferably, there are two supporting convex portions 116, which are respectively located at the left and right ends of the rear end wall 113, and the bottom of the supporting convex portion 116 is integrally connected to the bottom wall 111 and is lower than the top wall 110 in the vertical direction. The terminals 12 are received in the insulating body 11, and the terminals 12 are provided with a contact portion (not shown) protruding into the plugging slot 114 and a mounting leg 120 protruding backward from the rear end wall 113. The mounting legs 120 are equally spaced between the two supporting convex portions 116.

[0020] As Figure 3 shown, the metal housing 13 is provided with a top cover 130, a bottom cover 131, a pair of side covers 132, and a rear cover 133. The top cover 130 and the bottom cover 131 respectively cover the top wall 110 and the bottom wall 111 surfaces of the insulating body 11. The side covers 132 cover the two side surfaces of the insulating body 11. The rear cover 133 covers the rear end wall 113 surface of the insulating body 11. Among them, the top cover 130 is provided with a pair of limiting folding pieces 134 bent downward and extending into the top wall 110 and a pair of openings 135 distributed on the rear side edge of the metal housing 13. The openings 135 are distributed on the top wall 110 and the rear end wall 113. The side cover 132 is provided with a locking convex arm 136 protruding outward for locking and mating with the plug connector 20. Preferably, the locking convex arm 136 is V-shaped and is located on the left and right sides of the metal housing 13.

[0021] AsFigure 4 and Figure 5 As shown in Figure 5 and Figure 4 , the plug connector 20 includes a metal sleeve 21 and an operating rod 22 mounted on the metal sleeve 21. The metal sleeve 21 is used to accommodate and fix the flexible printed circuit (FPC) board 200, and the metal sleeve 21 is provided with an upper cover plate 210, a lower cover plate 211 and a pair of mounting portions 212. A cavity (not shown) for accommodating the FPC board 200 is formed between the upper cover plate 210 and the lower cover plate 211. A pair of limiting elastic arms 213 are provided on the upper cover plate 210. The limiting elastic arms 213 extend obliquely outward in the horizontal direction and are provided with a stop flap 214 bent downward. The stop flap 214 protrudes downward into the cavity and clamps on both sides of the FPC board 200. Preferably, the stop flap 214 is used to resist the protruding portions 201 on both sides of the FPC board 200 ( Figure 4 and Figure 5 ), so that the protruding portions 201 are limited between the side blocking arms 216 and the stop flap 214, thereby preventing the FPC board 200 from disengaging backward from the cavity (not shown), ensuring that the FPC board 200 remains within the plug connector 20. Preferably, narrow slots 215 are formed on both sides of the limiting elastic arms 213 to provide space for the deformation or displacement of the limiting elastic arms 213. The upper cover plate 210 and the lower cover plate 211 are integrally connected by a pair of side blocking arms 216. The side blocking arms 216 are located on the left and right sides of the cavity, and an outlet 217 for the FPC board 200 to pass through is formed between the side blocking arms 216 and the upper and lower cover plates 211. The head of the FPC board 200 passes through the outlet 217 and is inserted into the base connector 10. The mounting portions 212 protrude outward from the left and right sides of the upper cover plate 210 and the lower cover plate 211, and mounting grooves 218 for accommodating the operating rod 22 are formed in the mounting portions 212. The operating rod 22 is provided with a cross bar 220 integrally connected thereto, a pair of side bars 221 and a pair of pivot ends 222. The length extension direction of the cross bar 220 is perpendicular to the insertion direction of the plug connector 20 and the base connector 10. After the two are inserted, the cross bar 220 lies horizontally outside the rear end wall 113 of the base connector 10 and is placed on the support protrusion 116. The length extension direction of the side bars 221 is parallel to the insertion direction of the plug connector 20 and the base connector 10, and the side bars 221 are used for being snap-fixed by the locking convex arms 136. The pivot ends 222 are received in the mounting grooves 218 of the mounting portions 212 and serve as a pivot center for the operating rod 22 to perform a flipping operation.

[0022] In summary, in the present utility model, the flexible board 200 is inserted into the base connector 10 through the insertion joint 20, and the operating rod 22 of the insertion joint 20 is used to provide a reliable and stable locking force. Specifically, after the insertion joint 20 is inserted into the base connector 10 in place, only by flipping the operating rod 22 to make the cross bar 220 flip to the side of the rear end wall 113 of the base connector 10 and the side bar 221 snap to the locking convex arm 136, the firm connection between the insertion joint 20 and the base connector 10 can be completed. The base connector 10 is surrounded inside the operating rod 22, so that the FPC flexible board 200 can be reliably and stably held in the base connector 10, and will not easily become loose even when encountering vibration or external force, ensuring the stability and reliability of the electrical connection.

[0023] The above are only the best embodiments of the present utility model, and do not impose any form of limitation on the present utility model. Any person skilled in the art, without departing from the scope of the technical solution of the present utility model, makes many possible changes and modifications to the technical solution of the present utility model by using the method content disclosed above, and all belong to the scope protected by the claims.

Claims

1. An electrical connector assembly includes a base connector and a plug that is inserted and mated with the base connector. The base connector includes an insulating body and terminals received in the insulating body. A plugging groove is formed in the insulating body for inserting an FPC flexible board. It is characterized in that: The plug connector includes a metal sleeve and an operating rod mounted on the metal sleeve. The metal sleeve is provided with an upper cover plate, a lower cover plate and a pair of mounting parts integrally connected. The operating rod is fixed on the pair of mounting parts and is snap-connected to the base connector through a flipping operation, so that the base connector is surrounded by the inner side of the operating rod.

2. The electrical connector assembly according to claim 1, wherein: A cavity for accommodating the FPC flexible board is formed between the upper cover plate and the lower cover plate. The upper cover plate is provided with a pair of limiting elastic arms. The limiting elastic arms extend obliquely outward in the horizontal direction and are provided with a stop flap bent downward.

3. The electrical connector assembly according to claim 2, wherein: The stop flap protrudes downward into the cavity and is clamped on both sides of the FPC flexible board and abuts forward against the protruding parts on both sides of the FPC flexible board. Narrow slots are formed on both sides of the limiting elastic arm to provide space for the deformation or displacement of the limiting elastic arm.

4. The electrical connector assembly according to claim 3, wherein: The upper cover plate and the lower cover plate are integrally connected by a pair of side retaining arms. An outlet for the FPC flexible board to pass through is formed between the side retaining arms and the upper cover plate and the lower cover plate. The side retaining arms are located on the left and right sides of the outlet. The protruding parts on both sides of the FPC flexible board are limited in the front-rear direction between the side retaining arms and the stop flap.

5. The electrical connector assembly according to claim 4, wherein: The mounting parts protrude outward from the left and right sides of the upper cover plate and the lower cover plate. An installation groove for accommodating the operating rod is formed in the mounting parts. The operating rod is provided with a cross bar, a pair of side rods and a pair of pivoting ends integrally connected. The pivoting ends are installed in the installation groove.

6. The electrical connector assembly according to claim 5, characterized in that: The length extension direction of the cross bar is perpendicular to the insertion direction of the plug connector and the base connector. The length extension direction of the side rod is parallel to the insertion direction of the plug connector and the base connector.

7. The electrical connector assembly according to claim 6, wherein: The insulating body is provided with a rear end wall and a pair of supporting convex parts protruding backward from the rear end wall. The supporting convex parts are located at the left and right ends of the rear end wall to support the cross bar.

8. The electrical connector assembly according to claim 7, wherein: The base connector further includes a metal shell. A pair of locking convex arms protruding outward are formed on the metal shell. The locking convex arms are snap-fitted with the side rods of the operating rod.

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