Electric connector combination and wire end connector thereof

Abstract

The invention relates to an electric connector combination. A wire end connector comprises an insulating body, at least one socket terminal, a drawstring and an upper cover, the insulating body is provided with a lower surface and an upper surface which are opposite to each other, and an accommodating groove penetrating through the lower surface and the upper surface; the socket terminal is accommodated in the accommodating groove, and a butt joint groove is arranged in the socket terminal. The drawstring is fixed on the insulating body; the upper cover is fixed on the upper surface of the insulating body, the upper cover is provided with a plurality of clamping arms extending downwards, and a clamping head protruding towards the accommodating groove is formed at the lower tail end of each clamping arm. Through the clamping arm and the drawstring of the upper cover, a user can release the clamping head when pulling the drawstring and then pull the wire end connector to be separated from the board end connector, and the separation of the two connectors is realized by one action and does not need to be completed step by step, so that the convenience and safety of the disassembly operation are improved, and the effect of quick release is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to an electrical connector assembly which can be quickly undogged. BACKGROUND

[0002] The prior art Chinese invention patent CN115693224A discloses a wire end connector, which includes a housing having a pin entry opening through a bottom portion to a cavity configured to receive a pin. The wire end connector includes a socket in the cavity electrically connected to the pin. The wire end connector includes a latch movably housed in a latch slot to engage the pin to secure the wire end connector to the pin. The latch includes a latch release accessible from outside the housing to release the latch. The latch release moves the latch between a latched position and a clearance position. Latch ribs of the latch engage the pin in the latched position and release from the pin in the clearance position to allow the wire end connector to be uncoupled from the pin.

[0003] It can be understood that the latch release of the above-mentioned patent occupies space in the height direction, increasing the size of the entire wire end connector. While pressing the latch release, the wire end connector needs to be pulled at the same time to disengage the conductive post from the latch of the wire end connector, and then further pull the wire end connector to achieve the disconnection of the two connectors.

[0004] Therefore, it is desirable to design an improved electrical connector. SUMMARY

[0005] The technical problem to be solved by the present application is to provide an electrical connector assembly, in which the wire end connector can be quickly plugged and unplugged from the corresponding board end connector.

[0006] To solve the above-mentioned problems, the present application can adopt the following technical scheme: an electrical connector assembly, comprising a board end connector and a wire end connector; the board end connector comprises an insulating seat body and at least one conductive post fixed to the insulating seat body, and a ring groove is arranged at one end of the conductive post away from the insulating seat body; the wire end connector comprises an insulating body, at least one socket terminal, a pull belt and an upper cover, the insulating body is provided with opposite lower and upper surfaces and a receiving groove penetrating through the lower and upper surfaces; the socket terminal is accommodated in the receiving groove, and a mating groove is arranged in the socket terminal for inserting the conductive post; the pull belt is fixed to the insulating body; the upper cover is fixed to the upper surface of the insulating body, and the upper cover is provided with a plurality of clamping arms, and the lower end of each clamping arm is formed with a clamping head protruding towards the receiving groove; after the conductive post is inserted into the mating groove from the lower surface of the insulating body, the clamping head of the clamping arm is buckled in the ring groove; when the pull belt is pulled in a direction away from the upper surface, the clamping head is disengaged from the ring groove, and the wire end connector and the board end connector are gradually disengaged.

[0007] To solve the above problems, the application can adopt the following technical scheme: a wire end connector, comprising an insulating body, at least one socket terminal, a pull belt and an upper cover; the insulating body is provided with opposite lower and upper surfaces and a receiving groove penetrating through the lower and upper surfaces; the socket terminal is accommodated in the receiving groove, and the socket terminal is provided with a butt joint groove; the pull belt is fixed to the insulating body; the upper cover is fixed to the upper surface of the insulating body, and the upper cover is provided with a plurality of downward extending clamping arms, and the lower end of each clamping arm is formed with a clamping head protruding into the receiving groove.

[0008] Compared with the prior art, the upper cover of the application is provided with clamping arms which can be buckled in the ring groove of the conductive column, the user can pull the pull belt to make the clamping head unbuckle, and then pull the wire end connector to separate from the board end connector, one action can realize the separation of two connectors, without the need for step-by-step completion, thereby improving the convenience and safety of disassembly operation, and achieving the effect of quick unbuckling. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 is a perspective view of an electrical connector combination of an embodiment of the application, in which the wire end connector and the board end connector are in butt joint with each other.

[0010] Figure 2 is Figure 1 a sectional view along the dotted line A-A.

[0011] Figure 3 is Figure 1 a perspective view in which the wire end connector and the board end connector are separated from each other.

[0012] Figure 4 is Figure 3 a perspective view of the board end connector.

[0013] Figure 5 is Figure 4 a perspective view of the wire end connector.

[0014] Figure 6 is Figure 3 a perspective view of the wire end connector.

[0015] Figure 7 is Figure 3 a sectional view along the dotted line B-B.

[0016] Figure 8 is Figure 6 a partially exploded perspective view.

[0017] Figure 9 is Figure 8 a partially further exploded perspective view.

[0018] Figure 10is Figure 9 A perspective view of a signal terminal and a socket terminal in the middle of disassembly.

[0019] Figure 11 is Figure 9 A perspective view of another angle of the upper cover.

[0020] Figure 12 is Figure 10 A perspective view of another angle.

[0021] Figure 13 is Figure 2 A partially enlarged sectional view in the dashed box in the middle.

[0022] Figure 14 is similar to Figure 13 , showing a sectional view when the conductive column is almost fully inserted or just pulled out.

[0023] Explanation of element symbols: Electric connector combination 1000 Line connector 100 Board connector 200 Insulating base 10 Bottom plate 11 Enclosure 12 Housing cavity 121 U-shaped front half 122 U-shaped rear half 123 Conductive column 20 Ring groove 21 Upper inner wall surface 211 Upper end 22 Outer ring surface 221 Signal terminal 30 Insulating body 40 Lower surface 411 Upper surface 412 Through slit 413 End wall 414 Resting surface 415 Housing groove 42 Protruding rib 43 Pressure arm 44 Lower end 441 Terminal groove 45 Bump 451 Socket terminal 50 Butt joint groove 51 Conductive member 52 Channel 521 Connection part 522 Groove 523 Spring terminal 53 Upper cover 60 Base plate 61 Opening 611 Clamping arm 62 Clamping head 621 Lower surface 6211 Upper surface 6212 Fixing arm 63 Fixing head 631 Resting part 64 Pull strap 70 Signal terminal 80 U-shaped part 81 Side plate 82 First elastic arm 83 Ear 821 Horizontal part 84 Second elastic arm 85 Wire clamping part 86 First direction arrangement X-X.

[0024] The following detailed description will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments of the present application.

[0026] Referring to FIG. 1, Figures 1-3 As shown in FIG. 1, the electric connector combination 1000 of the present application comprises a wire end connector 100 and a board end connector 200. In this embodiment, the board end connector 200 is vertically mounted on a circuit board (not shown), and the rear end of the wire end connector 100 is connectable to a cable or bus bar for transmitting power. For the convenience of description, the side of the board end connector 200 matched with the circuit board is the lower side, and the side away from the circuit board for realizing the interface is the upper side. Correspondingly, the side of the cable connector matched with the board end connector is the lower side, and the opposite side is the upper side.

[0027] Referring to FIG. 1, Figures 4-5 The board end connector 100 comprises an insulating seat body 10 and at least one conductive column 20 fixed on the insulating seat body 10. The conductive column is provided with a ring groove 21 at one end away from the insulating seat body 10. In this embodiment, the conductive column 20 is used to transmit large current, and the board end connector comprises two conductive columns 20 to realize positive power transmission and negative power transmission.

[0028] In the specific embodiment, the insulating seat body 10 comprises a bottom plate 11 and a surrounding wall part 12 vertically extending upward from the bottom plate, and a receiving cavity 121 is formed in the surrounding wall part. The lower end of the conductive column 10 is fixed on the bottom plate 11 and extends upward into the receiving cavity 121. The two conductive columns are arranged in the receiving cavity 121 along the first direction X-X.

[0029] Further, the board end connector 100 is further provided with a signal terminal 30, and the signal terminal 30 of the board end connector is needle-shaped. In this embodiment, the two signal terminals 30 are fixed on the bottom plate and extend into the receiving cavity 121. The two signal terminals 30 are located on one side of the two conductive columns, or in other words, on one side of the first direction.

[0030] Referring to FIG. 1, Figures 6-11As shown, the terminal connector 200 comprises an insulating body 40, at least one socket terminal 50, an upper cover 60 and a pull strap 70. The insulating body 40 is provided with opposite lower and upper surfaces 411 and 412, and a receiving groove 42 penetrating the lower and upper surfaces 411 and 412. The socket terminal 50 is received in the receiving groove 42, and the socket terminal 50 is provided with a mating groove 51 for receiving the conductive post 20. The upper cover 60 is fixed on the upper surface 412 of the insulating body, and the upper cover 60 is provided with a plurality of clamping arms 62, and the lower ends of the clamping arms 62 are formed with clamping heads 621 protruding into the receiving groove 42. The pull strap 70 is fixed on the insulating body 40. In the embodiment, the insulating body 40 is provided with penetrating slots 413 at both ends, and the pull strap 70 is fixed by penetrating the penetrating slots 413. In other embodiments, the pull strap 70 can be fixed on the insulating body 40 in other ways.

[0031] In combination Figure 2 and Figures 13-14 As shown, after the conductive post 21 is inserted into the mating groove 51 from the lower surface 411 of the insulating body, the clamping head 621 of the clamping arm 62 is embedded in the ring groove 21, forming a clamping structure, which can provide appropriate holding force and effectively prevent the two from accidentally separating when not shaken or when no external force is applied to the pull strap 70 by the user. When the pull strap 70 is pulled away from the upper surface 412, the clamping head 621 is disengaged from the ring groove 21, completing the release, and then the terminal connector 200 is gradually separated from the board connector 100. As can be seen, when the user pulls the pull strap 70, the clamping head 621 is first released, and then the terminal connector 200 is pulled away from the board connector. One action can achieve the separation of the two connectors, and there is no need to complete the steps in sequence, thereby improving the convenience and safety of the disassembly operation.

[0032] Referring to Figures 13-14 As shown, further, the lower surface 6211 of the clamping head 621 is formed with an upwardly inclined insertion guide surface, and the upper surface 6212 is formed with a downwardly inclined release guide surface, facilitating the insertion and removal of the conductive post.

[0033] Specifically, the upper inner wall surface 211 of the ring groove 21 of the conductive post has an inclined surface, and the outer ring surface 221 of the upper end portion 22 located above the ring groove forms an inclined guide surface. When the conductive post 21 is inserted from bottom to top, the outer ring surface 221 of the upper end portion 22 is guided by the lower surface 6211 of the clamping head 621, i.e. the insertion guide surface, and the clamping arm 62 moves in a direction away from the docking groove 51, so that the upper end portion 22 moves upward beyond the clamping head 621, and then the clamping head 621 enters the ring groove 21, and the clamping arm 62 returns elastically, so that the clamping head 621 is clamped in the ring groove 21. When there is no improper shaking or the user does not act on the pull belt 70, i.e. when the external force is not large, the upper surface 6212 of the clamping head 621 and the upper inner wall surface 211 of the ring groove resist each other and will not cause the two to separate. When the pull belt 70 is pulled upward, i.e. when the external force is large, the upper surface 6212 of the clamping head 621 is downwardly inclined, which can overcome the resistance of the upper inner wall surface 211 and move upward, thereby achieving the release of the two.

[0034] In combination Figure 11 As shown, the upper cover 60 is provided with four clamping arms 62, and the four clamping arms are opposite to each other in pairs. In this way, the cooperation between the clamping arms and the ring groove is more stable.

[0035] Referring to Figure 11 And Figure 13 As shown, the upper cover 60 extends downwardly to a plurality of abutting portions 64, and each abutting portion 64 abuts downwardly on the socket terminal 50, effectively preventing the socket terminal 50 from being separated or displaced. Further, one of the abutting portions 64 is provided between adjacent clamping arms 62, and the width of the clamping arm 62 is greater than that of the abutting portion 64. The larger size of the clamping arm 62 helps to increase its strength and avoid the risk of breaking.

[0036] The upper cover 60 includes a base plate 61 provided with an opening 611 opposite to the receiving groove 42, and the clamping arm 62 extends downwardly from the inner edge of the opening 611. The opening 611 facilitates the accommodation of the upper end portion 22 of the conductive post 20, and the abutting portion 64 extends downwardly and beyond the clamping arm 62.

[0037] In this embodiment, the upper cover 60 is provided with two fixing arms 63, and the fixing arms are clamped on the insulating body 40 to fix the upper cover on the insulating body. Specifically, the insulating body 40 is provided with a protruding rib 43 on the end wall 414 forming the receiving groove 42, and the fixing head 631 at the end of the fixing arm 63 is clamped on the protruding rib 43.

[0038] In this embodiment, the insulating body 40 is provided with a plurality of downwardly extending pressing arms 44, and the lower end of each pressing arm is pressed downwardly in the groove 523 provided on the socket terminal 50. In this way, the displacement of the socket terminal 50 during assembly or use can be avoided.

[0039] In this embodiment, the socket terminal 50 comprises a conductive piece 52 and a crown spring terminal 53. The conductive piece 52 is provided with a channel 521 and a connecting portion 522, and the crown spring terminal 53 is accommodated in the channel 521, and the crown spring terminal 53 forms the mating groove 51, and the connecting portion 522 extends out of the insulating body 40.

[0040] Specifically, the socket terminal 50 is assembled into the accommodating groove 42 from the upper surface 412, and the socket terminal 50 is resisted by the resisting surface 415 located on the lower surface 411. The outer surface of the conductive piece 52 is provided with the groove 523, and the lower end 441 of the resisting arm 44 is abutted on the groove 523, so that the socket terminal 50 can be prevented from being displaced during assembly or use. In this embodiment, the resisting arm 44 is located below the protruding rib 43. The upper cover 60 is mounted into the insulating body 10 from the upper surface 412, and the fixing arm 63 of the upper cover is fixed on the protruding rib 43.

[0041] In this embodiment, the insulating body 40 is provided with two accommodating grooves 42, and the two accommodating grooves 42 are arranged along the first direction X-X, and the first direction is perpendicular to the end wall 414, and one socket terminal 50 is arranged in each accommodating groove 42. The end wall 415 of the insulating body is provided with the through slit 413, and the two ends of the pull strap 70 are fixed by penetrating through the through slit 413. The inner side of the wire end connector and the clamping arm provided on the upper cover are located on both sides of the conductive column, and the lateral fixing mode is adopted, which is helpful to reduce the overall width of the connector, form a narrow strip shape, and achieve the purpose of saving the board surface space on the circuit board.

[0042] Two signal terminals 80 are arranged in the insulating body 40. The signal terminal 80 comprises a U-shaped portion 81, two side plates 82 and a first elastic arm 83 which are respectively extended from three front lower edges of the U-shaped portion 81, the two side plates are arranged face to face, and the side plate is provided with an outwardly inclined and protruding lug 821, a horizontal portion 84 is bent from one front edge of the U-shaped portion to the other front edge, a second elastic arm 85 is extended from the lower edge of the horizontal portion, and the first and second elastic arms are arranged face to face, and the first and second elastic arms are used to clamp the inserted needle-shaped signal terminal 30. A wire clamping portion 86 is extended from the upper edge of the U-shaped portion to form a combination Figure 7 As shown, the insulating body is provided with the terminal groove 45, and the inner wall surface of the terminal groove is provided with two protrusions 451, the protrusions 451 are abutted on the side plates 82, and the lug 821 is abutted on the lower side of the protrusions 451. The signal terminal is assembled into the terminal groove 45 from the upper surface 412, and the protrusions 451 can prevent the signal terminal 80 from being separated from the insulating body 40 from the upper surface.

[0043] Referring to Figure 1 and Figure 3As shown, the connecting portion 522 of the socket terminal extends rearward beyond the insulating body 40, the height of the U-shaped rear half 123 of the wall portion 12 of the board end connector 100 is lower than the height of the U-shaped front half 122, thus, the connecting portion 522 can pass through without increasing the overall height of the electrical connector assembly. The U-shaped front half 122 encloses more height of the wire end connector, which is beneficial to the stability of the alignment of the two.

[0044] In summary, the above is only the preferred embodiment of the present application, should not be limited by this, namely, all the simple equivalent changes and modifications made in accordance with the claims and the content of the specification of the present application, should still be within the scope of the present application.

Claims

1. An electrical connector assembly, comprising a board-end connector and a wire-end connector; The board-end connector includes an insulating base and at least one conductive post fixed to the insulating base, wherein the conductive post has an annular groove at one end away from the insulating base. The wire connector includes an insulating body, at least one socket terminal, a pull strap, and a top cover; the insulating body has opposing lower and upper surfaces, and a receiving groove penetrating the lower and upper surfaces; the socket terminal is housed in the receiving groove, and the socket terminal has a mating groove for inserting the conductive post. Its features are: The pull strap is fixed to the insulating body; The top cover is fixed to the upper surface of the insulating body. The top cover is provided with a plurality of retaining arms, and the lower end of each retaining arm is formed with a retaining head protruding into the receiving groove. After the conductive post is inserted into the mating groove from the lower surface of the insulating body, the retaining head of the retaining arm is engaged in the annular groove; when the pull strap is pulled away from the upper surface, the retaining head disengages from the annular groove, and the wire end connector gradually disengages from the board end connector.

2. The electrical connector assembly as claimed in claim 1, characterized in that: The lower surface of the retaining head forms an upwardly inclined insertion guide surface, and the upper surface of the retaining head forms a downwardly inclined release guide surface.

3. A wire-end connector, comprising an insulating body, at least one socket terminal, a pull strap, and a top cover; the insulating body having opposing lower and upper surfaces, and a receiving groove penetrating the lower and upper surfaces; the socket terminal being accommodated within the receiving groove, and the socket terminal having a mating groove therein; Its features are: The pull strap is fixed to the insulating body; The top cover is fixed to the upper surface of the insulating body. The top cover is provided with a plurality of downwardly extending retaining arms, and the lower end of each retaining arm is formed with a retaining head protruding into the receiving groove.

4. The wire connector as described in claim 3, characterized in that: The lower surface of the retaining head forms an upwardly inclined insertion guide surface, and the upper surface of the retaining head forms a downwardly inclined release guide surface.

5. The wire connector as described in claim 3, characterized in that: The upper cover is provided with four clamping arms, which are opposite to each other in pairs.

6. The wire connector as described in claim 3, characterized in that: The top cover has an opening opposite to the receiving groove, and the retaining arm extends downward from the inner edge of the opening.

7. The wire connector as described in claim 3, characterized in that: The upper cover is provided with two fixing arms, which are inserted downward and fastened to the insulating body to fix the upper cover to the insulating body.

8. The wire connector as described in claim 3, characterized in that: The top cover extends downwards to form multiple abutment portions, which abut against the socket terminals one by one.

9. The wire connector as described in claim 3, characterized in that: The insulating body is provided with a plurality of downwardly extending pressing arms, and the socket terminal is provided with a groove, wherein the pressing arms press downward against the groove.

10. The wire connector as described in claim 3, characterized in that: The socket terminal includes a conductive element and a crown spring terminal; the conductive element includes a channel and a connecting portion, the crown spring terminal is accommodated in the channel, and the crown spring terminal forms the mating groove; the connecting portion extends out of the insulating body.

11. The wire connector as described in claim 3, characterized in that: The insulating body is provided with two receiving slots, which are arranged along a first direction, and each receiving slot is provided with a socket terminal. The insulating body has through slots at both ends along the first direction, and the two ends of the pull strap pass through the through slots and are fixed.

12. The wire connector as described in claim 3, characterized in that: The wire connector includes at least one signal terminal, and the insulating body is provided with a terminal slot; The two opposing inner wall surfaces of the terminal slot are provided with protrusions; The signal terminal includes two opposing side plates, a first elastic arm and a second elastic arm, wherein the first elastic arm and the second elastic arm are disposed opposite to each other and located between the two side plates; Each of the side plates is provided with an ear piece, the protrusion abuts against the corresponding side plate, and the ear piece abuts upward against the protrusion.

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