A sink plate connector

Abstract

The utility model discloses a kind of sinking plate connectors, including pedestal, limiting terminal, conducting terminal, fixed sheet and lock strip;Pedestal front end is equipped with the wire insertion port for wire insertion;Limiting terminal is installed on pedestal and will lock strip form limit;The upper end surface of pedestal is equipped with the fixed jack one and insertion hole extending downwards, and it is equipped with the rear end edge of the rear side edge of pedestal upper end protruding in the form of fender along;Conducting terminal is equipped with fixed pin one, wire contact part and welding foot part;Fixed pin one is inserted and fixed in fixed jack one from top to bottom, wire contact part is inserted wire insertion port through insertion hole from top to bottom;Welding foot part extends rearwards and protrudes from the rear end edge of fender.The sinking plate connector in the utility model can save insulating back cover, thereby reducing the number of parts and assembly process, thereby beneficial to reduce production cost and improve production efficiency, with good practicability.

Description

Technical Field

[0001] This utility model belongs to the field of electrical connectors, specifically relating to a recessed connector. Background Technology

[0002] In the field of electronic equipment manufacturing, board-to-board or wire-to-board connectors are key components for achieving electrical connections. Among them, recessed connectors are widely used because they reduce the overall assembly height. Traditional recessed connectors typically consist of an insulating base, conductive terminals, and a separate insulating back cover. After the conductive terminals are installed on the base, they need to be restrained by the insulating back cover. In addition, when the connector is mounted on a metal circuit board such as an aluminum substrate, the insulating back cover is used to insulate and isolate the conductive terminals from the aluminum substrate edge to prevent short circuits caused by contact between the burrs on the aluminum substrate edge and the conductive terminals. However, this structure has obvious drawbacks: firstly, the separate insulating back cover increases the number of parts, leading to increased material costs; secondly, during assembly, an additional step is required to install the insulating back cover, reducing production efficiency and increasing costs. Utility Model Content

[0003] In response, this utility model provides a recessed connector that, through structural optimization, eliminates the need for an insulating back cover, thereby simplifying the product structure and helping to reduce production costs and improve production efficiency.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] This utility model provides a recessed connector, including a base, a limiting terminal, a conductive terminal, a fixing plate, and a locking bar; the front end of the base is provided with a ribbon cable socket for inserting a ribbon cable; the limiting terminal is mounted on the base and forms a limiting position on the locking bar; the upper surface of the base is provided with a downwardly extending fixing hole and an insertion hole, and a rearwardly protruding retaining edge is provided on the rear side edge of the upper end of the base; the conductive terminal is provided with a fixing pin, a ribbon cable contact part, and a soldering pin part; the fixing pin is inserted and fixed in the fixing hole from top to bottom, and the ribbon cable contact part extends into the ribbon cable socket from top to bottom through the insertion hole; the soldering pin part extends rearward and protrudes from the rear end edge of the retaining edge.

[0006] Preferably, the lower end of the base is provided with a receiving groove, the receiving groove is connected to the cable connector, and the locking bar is disposed in the receiving groove and can rotate relative to the base.

[0007] Preferably, the limiting terminal is provided with a second fixed pin and a limiting arm for limiting the locking bar, and the base is provided with a second fixed socket for fixing the second fixed pin and a limiting socket for connecting with the end of the limiting arm.

[0008] Preferably, the base is provided with a plurality of limiting terminals spaced apart in the left-right direction, and a bend is formed on the limiting arm of each limiting terminal; the lock bar is provided with shaft connection portions spaced apart in the left-right direction, each corresponding to a limiting terminal; the base is provided with a stop surface, and a limiting groove portion is formed between the stop surface and the bend portion to form a limiting fit with the shaft connection portion; the limiting insertion hole is provided on the stop surface.

[0009] Preferably, the cable contact portion includes a horizontal arm extending in the front-to-back direction, and the horizontal arm is provided with a contact protrusion that contacts the cable.

[0010] Preferably, there are two contact protrusions, and the two contact protrusions are spaced apart in the front-to-back direction.

[0011] Preferably, the left and right ends of the locking bar are provided with limiting protrusions, and the side wall of the receiving groove is provided with a limiting slide groove that cooperates with the limiting protrusions. The limiting slide groove extends in the front-back direction and has an opening for the limiting protrusions to extend into.

[0012] Preferably, a locking position is provided near the opening in the limiting groove, and a locking block is provided on the locking bar. When the locking bar is in the locked state, the locking block engages with the locking position.

[0013] Preferably, the base has three fixing holes at both the left and right ends, and the fixing piece is correspondingly disposed at both ends of the base and has three fixing pins that are inserted and fixed into the fixing holes; the fixing pins are inserted into the fixing holes in the direction of forward or backward.

[0014] The advantages of this invention are as follows: The recessed connector structure of this invention is optimized. During assembly, the conductive terminals are directly inserted and fixed inside the base from top to bottom to avoid the exposed parts of the conductive terminals other than the soldered feet on the back side of the base. The retaining edge is integrally formed with the base to ensure that an effective insulating barrier is formed between the conductive terminals and the edge of the opening on the circuit board. This eliminates the need for an insulating back cover, reduces the number of parts, lowers production costs, and eliminates the assembly process of the insulating back cover, which helps to improve production efficiency. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art are briefly introduced below. Similar elements or parts in the drawings are generally identified by similar reference numerals. The elements or parts in the drawings are not necessarily drawn to scale.

[0016] Figure 1 This is a schematic diagram of the recessed plate connector of this utility model;

[0017] Figure 2for Figure 1 A schematic diagram of the recessed connector shown from another perspective;

[0018] Figure 3 for Figure 1 A top view of the recessed connector shown;

[0019] Figure 4 For along Figure 3 A sectional view cut along line AA.

[0020] Figure 5 This is a structural schematic diagram of the recessed plate connector (with the locking bar in the open state) of this utility model;

[0021] Figure 6 This is an exploded view of the recessed plate connector of this utility model;

[0022] Figure 7 This is a schematic diagram of the recessed plate connector in use according to this utility model.

[0023] The attached figures are labeled as follows: 1. Base; 11. Cable connector; 12. Fixed socket one; 13. Insertion hole; 14. Baffle; 15. Receiving groove; 151. Limiting slide groove; 152. Locking position; 16. Fixed socket two; 17. Limiting socket; 18. Abutting surface; 19. Fixed hole three; 2. Limiting terminal; 21. Fixed pin two; 22. Limiting arm; 23. Bend; 3. Conducting terminal; 31. Fixed pin one; 32. Cable contact part; 321. Cross arm; 322. Contact protrusion; 33. Welding foot; 4. Fixing piece; 41. Fixed pin three; 5. Locking bar; 51. Shaft connection part; 52. Limiting protrusion shaft; 53. Locking block; 6. Cable; 7. Circuit board. Detailed Implementation

[0024] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0025] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0026] The structure of the recessed connector in this embodiment of the utility model is as follows: Figures 1 to 7As shown, the connector includes a base 1, a limiting terminal 2, a conductive terminal 3, a fixing plate 4, and a locking bar 5. The base 1 is injection molded from insulating engineering plastic, and the front end of the base 1 is provided with a ribbon cable socket 11 for inserting a ribbon cable 6. The limiting terminal 2 is mounted on the base 1 and limits the locking bar 5. The locking bar 5 can switch between an open state and a locked state. When the locking bar 5 is in the locked state, it is used to press the ribbon cable 6 inserted into the ribbon cable socket 11. Before the ribbon cable 6 is inserted into the ribbon cable socket 11, the locking bar 5 needs to be in the open state. When installing this recessed connector, it is embedded into the opening of the circuit board 7, the conductive terminal 3 is spot welded to the circuit board 7 to achieve electrical conduction, the fixing plate 4 is spot welded to the circuit board 7 for reinforcement, and the ribbon cable 6 is inserted into the ribbon cable socket 11 and contacts the conductive terminal 3.

[0027] In this embodiment, the upper surface of the base 1 is provided with a downwardly extending fixing hole 12 and an insertion hole 13, and a rearwardly protruding retaining edge 14 is provided on the rear edge of the upper end of the base 1; the conductive terminal 3 is provided with a fixing pin 31, a ribbon cable contact portion 32, and a soldering pin 33; the fixing pin 31 is inserted and fixed in the fixing hole 12 from top to bottom, and the ribbon cable contact portion 32 extends into the ribbon cable socket 11 from top to bottom through the insertion hole 13; the soldering pin 33 extends rearward and protrudes from the rear end edge of the retaining edge 14, adopting the method of this embodiment. In terms of structure, during assembly, the conductive terminal 3 is directly inserted and fixed inside the base 1 from top to bottom to avoid the part of the conductive terminal 3 other than the soldering foot 33 being exposed on the rear side of the base 1. The retaining edge 14 is integrally injection molded with the base 1 to ensure that an effective insulating barrier is formed between the conductive terminal 3 and the edge of the opening on the circuit board 7. This eliminates the need for an insulating back cover, reduces the number of parts, lowers production costs, and eliminates the assembly process of the insulating back cover, which helps to improve production efficiency. During installation, the soldering foot 33 is soldered to the circuit board 7, and the ribbon cable 6 is connected to the connector.

[0028] In this embodiment, the lower end of the base 1 is provided with a receiving groove 15, which is connected to the ribbon cable socket 11. The locking bar 5 is located in the receiving groove 15 and can rotate relative to the base 1. The locking bar 5 can be rotated to switch between the open and locked states, which is convenient to operate.

[0029] See Figure 4 The limiting terminal 2 is provided with a fixed pin 21 and a limiting arm 22 for limiting the locking bar 5. The base 1 is provided with a fixed insertion hole 16 for inserting and fixing the fixed pin 21 and a limiting insertion hole 17 for inserting into the end of the limiting arm 22. In this way, the limiting terminal 2 can be quickly and effectively limited and installed on the base 1, which is convenient and reliable.

[0030] Continue reading Figure 4The base 1 has multiple limiting terminals 2 spaced apart along the left-right direction (i.e., the length direction of the base 1), and each limiting terminal 2 has a bend 23 formed on its limiting arm 22. The locking bar 5 has shaft connection portions 51 spaced apart along its left-right direction, each corresponding to a limiting terminal 2. The base 1 has a stop surface 18, and a limiting groove is formed between the stop surface 18 and the bend 23 to limit the locking bar 5. The limiting groove can cooperate with the shaft connection portion 51 to limit the locking bar 5. The limiting insertion hole 17 is provided on the stop surface 18. With this arrangement, the locking bar 5 can be rotatably installed on the base 1 by the multiple limiting terminals 2 together limiting the locking bar 5, and it can also ensure that the locking bar 5 reliably locks the cable 6 during the locking stage.

[0031] See Figure 4 and Figure 6 As shown, in order to ensure reliable contact between the ribbon cable contact 32 and the ribbon cable 6, the ribbon cable contact 32 includes a horizontal arm 321 extending in the front-to-back direction. The horizontal arm 321 is provided with contact protrusions 322 that contact the ribbon cable 6. Furthermore, the number of contact protrusions 322 is two, and the two contact protrusions 322 are spaced apart in the front-to-back direction. In this way, after the ribbon cable 6 is inserted into the ribbon cable socket 11, it will contact the ribbon cable 6 through both contact protrusions 322. This design with double contact protrusions 322 increases the contact points and current carrying capacity, ensuring the stability and reliability of the electrical connection.

[0032] To enhance the reliability of the lock bar 5 installation, limiting protrusions 52 are formed at both ends of the lock bar 5. A limiting slide groove 151 that cooperates with the limiting protrusions 52 is formed on the side wall of the receiving groove 15. The limiting slide groove 151 extends in the front-back direction and has an opening. During the assembly process, the limiting protrusions 52 slide into the limiting slide groove 151 through the opening. The cooperation between the limiting slide groove 151 and the limiting protrusions 52 enhances the limiting of both ends of the lock bar 5.

[0033] See Figure 5 As shown, a locking position 152 is provided near the opening in the limiting slide groove 151, and a locking block 53 is provided on the locking bar 5. When the locking bar 5 is in the locked state, the locking block 53 engages with the locking position 152, thus ensuring the reliability of the locking bar 5 in the locked state, and thus ensuring the reliable connection between the ribbon cable 6 and the connector.

[0034] See further Figures 4 to 6The base 1 has fixing holes 19 at both ends. The fixing piece 4 is correspondingly located at both ends of the base 1 and has fixing pins 41 that are inserted into the fixing holes 19. The fixing piece 4 is fixed to the base 1 by the insertion and engagement between the fixing pins 41 and the fixing holes 19, which is convenient for assembly. Moreover, the direction of the fixing pins 41 being inserted into the fixing holes 19 is forward or backward. This forward and backward insertion and fixing method, combined with the assembly direction of the conductive terminal 3 being installed into the base 1 from top to bottom, forms a multi-directional limiting after the connector is soldered to the circuit board 7 (both the conductive terminal 3 and the fixing piece 4 are spot-welded to the circuit board 7), thereby ensuring the stability of the connector installation.

[0035] For those skilled in the art, other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, these obvious variations or modifications derived from the essential spirit of this invention still fall within the protection scope of this invention.

Claims

1. A recessed connector, comprising a base (1), a limiting terminal (2), a conducting terminal (3), a fixing piece (4), and a locking strip (5); the base (1) has a ribbon cable socket (11) for inserting a ribbon cable (6) at its front end; the limiting terminal (2) is mounted on the base (1) and the locking strip (5) is positioned to limit its movement; characterized in that, The upper surface of the base (1) is provided with a downwardly extending fixing hole (12) and insertion hole (13), and a rearwardly protruding retaining edge (14) is provided on the rear side edge of the upper end of the base (1); the conductive terminal (3) is provided with a fixing pin (31), a ribbon cable contact part (32) and a welding foot part (33); the fixing pin (31) is inserted and fixed in the fixing hole (12) from top to bottom, and the ribbon cable contact part (32) extends into the ribbon cable socket (11) from top to bottom through the insertion hole (13); the welding foot part (33) extends rearward and protrudes from the rear end edge of the retaining edge (14).

2. The recessed connector according to claim 1, characterized in that, The base (1) has a receiving groove (15) at its lower end. The receiving groove (15) is connected to the cable connector (11). The locking bar (5) is located in the receiving groove (15) and can rotate relative to the base (1).

3. The recessed connector according to claim 1, characterized in that, The limiting terminal (2) is provided with a fixed pin two (21) and a limiting arm (22) for limiting the locking bar (5). The base (1) is provided with a fixed insertion hole two (16) for being inserted and fixed to the fixed pin two (21) and a limiting insertion hole (17) for being inserted to the end of the limiting arm (22).

4. The recessed connector according to claim 3, characterized in that, The base (1) is provided with a plurality of limit terminals (2) spaced apart in the left and right direction, and a bend (23) is formed on the limit arm (22) of each limit terminal (2); the lock bar (5) is provided with a shaft connection part (51) corresponding to the limit terminal (2) in the left and right direction; the base (1) is provided with a stop surface (18); a limit groove part is formed between the stop surface (18) and the bend (23) to form a limit fit with the shaft connection part (51); and the limit insertion hole (17) is provided on the stop surface (18).

5. The recessed connector according to claim 1, characterized in that, The cable contact portion (32) includes a horizontal arm (321) extending in the front-rear direction, and the horizontal arm (321) is provided with a contact protrusion (322) that contacts the cable (6).

6. The recessed connector according to claim 5, characterized in that, The number of the contact protrusions (322) is two, and the two contact protrusions (322) are spaced apart in the front-back direction.

7. The recessed connector according to claim 2, characterized in that, The locking bar (5) has a limiting protrusion (52) formed at both ends. The side wall of the receiving groove (15) has a limiting slide groove (151) that cooperates with the limiting protrusion (52). The limiting slide groove (151) extends in the front-back direction and has an opening for the limiting protrusion (52) to be inserted.

8. The recessed connector according to claim 7, characterized in that, The limiting slide groove (151) has a locking position (152) near the opening, and the locking bar (5) has a locking block (53). When the locking bar (5) is in the locked state, the locking block (53) engages with the locking position (152).

9. The recessed connector according to claim 1, characterized in that, The base (1) has three fixing holes (19) at both the left and right ends. The fixing piece (4) is correspondingly located at both ends of the base (1) and has a fixing pin (41) that is inserted into the fixing hole (19) for fixing. The fixing pin (41) is inserted into the fixing hole (19) in a forward or backward direction.

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