Cable connector

Abstract

The utility model provides a cable connector, comprising a wire end plug and a board end socket, the wire end plug comprises an insulation body, a plurality of wiring terminals accommodated in the insulation body and a plurality of cables connected to the wiring terminals; the plate end socket comprises a plastic base body, a plurality of sheet-shaped terminals clamped on the plastic base body and a metal shell installed on the plastic base body. An insulation body of the wire end plug is provided with a buckle arm, a metal shell of the plate end socket is provided with a lock catch hole and a lock catch protrusion which are matched with the buckle arm, and the buckle arm stretches into the lock catch hole in a protruding mode and is matched with the lock catch protrusion in a buckled mode. According to the utility model, a buckling mechanism of the wire end plug and the board end socket is optimized, reliable and stable buckling fixation is realized by utilizing buckling matching of the buckling arm and the top cover part of the metal shell, meanwhile, the buckling arm adopts a cantilever type or lever type design, and the operation of locking or unlocking is realized through a lever principle, so that the operation is very convenient and rapid.

Description

Technical Field

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

[0002] With the development trend of small and light consumer electronic products such as notebooks, tablet computers, and mobile phones, the design and manufacturing process requirements of their components are getting higher and higher. As the products become thinner and lighter, the internal space becomes very narrow, which requires that the internal layout of the product must be densely packed, and the volume of each electronic component is getting smaller and smaller, thinner and lighter, and the reliability requirements for the process technology and product connection are getting higher and higher. Taking the cable connector as an example, in order to meet the reliability of plugging and unplugging, the prior art usually designs a corresponding snap mechanism on the male plug and the female socket, so that the two can achieve a stable connection with the help of the snap mechanism after plugging. The common snap mechanism is set on both sides of the male and female ends, such as opening grooves on the insulating plastic on both sides of the male end to snap with the raised structures on both sides of the female end. However, due to the thin design of the product, the clamping force / holding force provided by such a snap mechanism is insufficient, and it is easy to loosen during vibration, resulting in poor contact between the male and female ends. Utility Model Content

[0003] The technical problem solved by the utility model is to provide a cable connector to improve the problem of poor contact caused by insufficient plugging and pulling force or insufficient holding force in the prior art.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a cable connector, comprising a wire-end plug and a board-end socket that are plugged into and matched with each other, the wire-end plug comprising an insulating body, a plurality of wiring terminals accommodated in the insulating body and a plurality of cables connected to the wiring terminals, the board-end socket comprising a plastic substrate, a plurality of sheet terminals clamped on the plastic substrate and a metal shell installed on the plastic substrate; a snap arm is provided on the insulating body of the wire-end plug, the snap arm is provided with an operating panel, a hook portion extending forward from the operating panel and a support arm supported under the operating panel; a locking hole and a locking protrusion located on one side of the locking hole are provided on the metal shell of the board-end socket, the hook portion protrudes into the locking hole and is snap-fitted with the locking protrusion.

[0005] Furthermore, the insulating body is provided with a top wall, a bottom wall and a pair of side walls, the snap arm is formed above the top wall and is integrally connected to the top wall through the support arm, and the surface of the top wall is also formed with a pair of convex strips located on both sides of the snap arm.

[0006] Furthermore, the convex strip extends along the length direction of the cable, and the metal shell is provided with a top cover portion and a pair of side cover portions, and a pair of narrow and long slots for accommodating the pair of convex strips are formed on the top cover portion, and the slots are located on both sides of the locking hole and pass through the edge of the top cover portion.

[0007] Furthermore, the operating panel and the hook portion are respectively located at the front and rear sides of the support arm, and the three form a lever structure with the support arm as a fulcrum.

[0008] Furthermore, a recessed snap-in recess and a narrow and long recess are provided on the surface of the side wall, the recess extends in the front-to-back direction and is located above the snap-in recess, and the snap-in recess is snap-fitted with the side cover.

[0009] Furthermore, the wiring terminal is provided with a wire clamping portion and a pair of clamping arms, the wire clamping portion clamps the cable and is in conduction with the wire core of the cable, and the pair of clamping arms are symmetrically arranged to form a space for clamping the sheet-shaped terminal.

[0010] Furthermore, a pair of positioning ribs and a positioning bump are provided on the top surface of the plastic base, and a mounting groove which cooperates and is fixed with the metal shell is provided on the side surface of the plastic base.

[0011] Furthermore, the top wall and the bottom wall of the insulating body correspond to each other in the upper and lower parts and are arranged parallel to each other, and a plurality of cable arrangement holes are formed between the two for cables to pass through.

[0012] Furthermore, a pair of downwardly folded retaining pieces are provided on both sides of the top cover portion, and the retaining pieces protrude downward to be retained in the recessed channel.

[0013] Compared with the prior art, the utility model optimizes the snap-fit ​​mechanism of the line-end plug and the board-end socket, and utilizes the snap-fit ​​cooperation between the snap-fit ​​arm and the top cover of the metal shell to achieve reliable and stable snap-fit ​​fixation, thereby ensuring sufficient holding force. At the same time, the snap-fit ​​arm adopts a cantilever or lever-type design, and the locking or unlocking operation is achieved through the lever principle, which is very convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the line-end plug and the board-end socket of the cable connector of the utility model before being plugged in.

[0015] Figure 2 This is an exploded view of the wire end plug of the cable connector of the utility model.

[0016] Figure 3 This is an exploded view of the board-end socket of the cable connector of the utility model.

[0017] Figure 4It is a three-dimensional diagram of the line-end plug and the board-end socket of the cable connector of the utility model in a plugged-in state.

[0018] Figure 5 It is a cross-sectional view of the line-end plug and the board-end socket of the utility model in the plugged-in state. DETAILED DESCRIPTION

[0019] See also Figures 1 to 5 As shown, the utility model provides a cable connector, including a wire-end plug 100 and a board-end socket 200, which are respectively used to connect a cable and a circuit board, wherein the wire-end plug 100 inserts the cable into the board-end socket 200 to achieve electrical connection between the cable and the circuit board.

[0020] like Figure 2As shown, the line end plug 100 includes an insulating body 110, a plurality of wiring terminals 120 fixed in the insulating body 110, and a plurality of cables 130 connected to the wiring terminals 120. The insulating body 110 is flat and is provided with a top wall 111, a bottom wall 112 and a pair of side walls 113. The top wall 111 and the bottom wall 112 correspond to each other up and down and are arranged parallel to each other. A plurality of wiring holes 114 are formed between the two for the cables 130 to pass through. A pair of convex strips 115 protruding upward and a snap arm 116 between the pair of convex strips 115 are formed on the surface of the top wall 111. The convex strips 115 are long and extend along the length direction of the cables 130. Preferably, the convex strips 115 extend from the front edge of the top wall 111 to the side edge of the top wall 111. The rear edge of the top wall 111, the snap arm 116 is integrally connected to the top wall 111, and the snap arm 116 is provided with a flat operating panel 116a, a hook portion 116b extending forward from the operating panel 116a, and a support arm 116c integrally connected between the operating panel 116a and the top wall 111, wherein the operating panel 116a and the hook portion 116b are respectively located at the front and rear sides of the support arm 116c, so that the three form a lever structure with the support arm 116c as the fulcrum, that is, pressing the operating panel 116a can make the hook portion 116b tilt upward, preferably, the operating panel 116a is tilted, which is higher than the hook portion 116b in the vertical direction, and the hook portion 116b protrudes toward to be snap-fitted with the board-end socket 200. The surface of the side wall 113 is provided with a recessed buckle recess 117 for buckling with the board-end socket 200. Preferably, the side wall 113 is also provided with a narrow and long recess 118, which extends in the front-to-back direction and is located above the buckle recess 117. Preferably, the recess 118 can play a foolproof role to prevent the line-end plug 100 from being inserted into the board-end socket 200 by mistake. Preferably, the front end of the side wall 113 is provided with an inclined surface 119 for guiding the insertion. The wiring terminal 120 is provided with a clamping portion 121 and a pair of clamping arms 122. The clamping portion 121 is used to clamp the cable 130 and conduct with the wire core of the cable 130. The clamping arms 122 are symmetrically arranged, and a space for clamping the sheet terminal 220 of the board-end socket 200 is formed between the two.

[0021] like Figure 3As shown, the board-end socket 200 includes a long plastic base 210, a plurality of sheet terminals 220 clamped on the plastic base 210, and a metal shell 230 installed on the plastic base 210. The top surface of the plastic base 210 is provided with a pair of positioning ribs 211 and a positioning protrusion 212, which are used to cooperate with the metal shell 230. The side of the plastic base 210 is provided with a mounting groove 213 for installing and fixing the metal shell 230. The plastic base 210 is provided with a plurality of front-to-back through terminal grooves 214 for accommodating the plurality of sheet terminals 220. The sheet terminal 220 is in a Z-shape, and is provided with a contact portion 221 and a welding portion 222. The contact portion 221 is in a sheet shape and is inserted between a pair of clamping arms 122 of the wiring terminal 120, thereby achieving electrical connection with the wiring terminal 120. The welding portion 222 extends backward from the contact portion 221 to the plastic base 210, and is used for welding to a circuit board. The metal shell 230 is provided with a top cover portion 231 and a pair of side cover portions 232. The top cover portion 231 and the side cover portions 232 are formed by metal stamping and are integrally connected to each other. An insertion space 235 for inserting the line end plug 100 is formed between the top cover portion 231 and the pair of side cover portions 232. The top cover portion 231 is provided with a pair of narrow and long notches 233 and a locking hole 234 between the pair of notches 233. The notches 233 The top cover 231 and the locking hole 234 both pass through the top cover 231 from top to bottom and communicate with the plug-in space 235. Preferably, the top cover 231 is also provided with a locking protrusion 236, which is formed on one side of the locking hole 234 and is arranged adjacent to the locking hole 234. The locking protrusion 236 protrudes upward from the surface of the top cover 231 and is higher than the locking hole 234, and is used to engage with the hook portion 116b. The side cover 232 is formed with an inwardly protruding elastic arm 237, which protrudes toward the plug-in space 235 to be pressed onto the line end plug 100 in the plug-in space 235, clamping the line end plug 100 so that the line end plug 100 is kept in the board end socket 200. Preferably, the top cover portion 231 is provided with a pair of downwardly folded retaining plates 238, and the retaining plates 238 are located on both sides of the plug-in space 235 and protrude into the plug-in space 235 to be retained in the recess 118, and the mutual cooperation between the two realizes the function of preventing foolishness and mis-insertion.

[0022] During assembly, the line end plug 100 is inserted into the insertion space 235 of the board end socket 200, and the pair of convex strips 115 on the line end plug 100 are clamped in the pair of notches 233 on the metal shell 230 of the board end socket 200, and the snap arm 116 of the line end plug 100 is snap-fitted with the lock hole 234 and the lock protrusion 236 on the metal shell 230. Due to the setting of the lock protrusion 236, the hook portion 116b of the snap arm 116 will make a "click" snapping sound when passing through the lock protrusion 236, or the operator can clearly feel the snapping into place.

[0023] In summary, the utility model optimizes the snap-fit ​​mechanism of the line-end plug 100 and the board-end socket 200, and utilizes the snap-fit ​​cooperation between the snap-fit ​​arm 116 and the top cover of the metal shell 230 to achieve reliable and stable snap-fit ​​fixation. At the same time, the snap-fit ​​arm 116 adopts a cantilever or lever design, and the locking or unlocking operation is achieved through the lever principle, which is very convenient and quick.

[0024] The above is only the best embodiment of the utility model and does not limit the utility model in any form. Any technician familiar with the field can make many possible changes and modifications to the technical solution of the utility model by using the method disclosed above without departing from the scope of the technical solution of the utility model, which all fall within the scope of protection of the claims.

Claims

1. A cable connector, comprising a wire-end plug and a board-end socket that are plugged into each other, the wire-end plug comprising an insulating body, a plurality of wiring terminals received in the insulating body, and a plurality of cables connected to the wiring terminals, the board-end socket comprising a plastic substrate, a plurality of sheet terminals clamped on the plastic substrate, and a metal shell mounted on the plastic substrate; characterized in that: The insulating body of the wire end plug is provided with a snap arm, which is provided with an operating panel, a snap hook portion extending forward from the operating panel and a support arm supported under the operating panel; the metal shell of the board end socket is provided with a lock hole and a lock protrusion located on one side of the lock hole, the snap hook portion protrudes into the lock hole and snaps with the lock protrusion.

2. The cable connector according to claim 1, wherein: The insulating body is provided with a top wall, a bottom wall and a pair of side walls. The snap arm is formed above the top wall and is integrally connected with the top wall through the support arm. A pair of convex strips are also formed on the surface of the top wall on both sides of the snap arm.

3. The cable connector according to claim 2, wherein: The convex strip extends along the length direction of the cable, and the metal shell is provided with a top cover portion and a pair of side cover portions. A pair of narrow and long slots for accommodating the pair of convex strips are formed on the top cover portion, and the slots are located on both sides of the locking hole and pass through the edge of the top cover portion.

4. The cable connector according to claim 3, wherein: The operation panel and the hook portion are respectively located at the front and rear sides of the support arm, and the three form a lever structure with the support arm as a fulcrum.

5. The cable connector according to claim 4, wherein: The surface of the side wall is provided with a sunken buckle recess and a narrow and long groove, the groove extends along the front-back direction and is located above the buckle recess, and the buckle recess is engaged with the side cover portion.

6. The cable connector according to claim 5, wherein: The wiring terminal is provided with a wire clamping portion and a pair of clamping arms. The wire clamping portion clamps the cable and is in conduction with the wire core of the cable. The pair of clamping arms are symmetrically arranged, and a space for clamping the sheet-shaped terminal is formed therebetween.

7. The cable connector according to claim 6, wherein: A pair of positioning ribs and a positioning convex block are arranged on the top surface of the plastic base, and a mounting groove which is matched and fixed with the metal shell is arranged on the side surface of the plastic base.

8. The cable connector according to claim 7, wherein: The top wall and the bottom wall of the insulating body correspond to each other in the vertical direction and are arranged parallel to each other, and a plurality of cable arrangement holes are formed between the two walls for cables to pass through.

9. The cable connector according to claim 8, wherein: A pair of downwardly folded retaining pieces are provided on both sides of the top cover, and the retaining pieces protrude downward to be retained in the recess.

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