Locking structure of puncture type terminal connector

Abstract

The utility model discloses a locking structure of a puncture type terminal connector. According to the technical scheme, the connector comprises a female end plastic shell, a plurality of female terminals inserted in an insertion channel of the female end plastic shell and an FPC connected with the female terminals in a crimping mode, each female terminal is provided with a clamping groove, and clamping tongue pieces corresponding to the clamping grooves are arranged in the female end plastic shell. When the female terminals are completely inserted into the female end plastic shell, the clamping tongue piece is embedded into the clamping groove to form a primary lock structure, each female terminal is further provided with an abutting piece, a through groove is formed in the female end plastic shell in a penetrating mode, a locking strip is inserted into the through groove, each abutting piece abuts against the locking strip to form a secondary lock structure, and the locking strip is provided with an elastic piece. The female end plastic shell is provided with a clamping tongue piece, the elastic piece is provided with a clamping lug boss fixed with the female end plastic shell, the female terminal disassembling jig comprises a plate body and a plurality of ejector pins arranged on the plate body, and the plurality of ejector pins can extend into the insertion channel and eject the clamping tongue piece open. The scheme provided by the utility model is convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a locking structure of a piercing type terminal connector. Background Art

[0002] The terminal and signal line connection structure of the piercing structure connector eliminates the need for welding between the terminal and the core wire of the electrical connector, thus avoiding various problems caused by welding. In the prior art piercing terminal connector, the female terminal and the female end plastic shell are usually fixed with multiple locking structures, such as the three-locking structure produced by TE, which is cumbersome and difficult to plug and unplug. Utility Model Content

[0003] In view of the deficiencies in the prior art, the main purpose of the utility model is to provide a locking structure of a piercing terminal connector that is convenient for assembly and disassembly.

[0004] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a locking structure of a piercing terminal connector, comprising a female end plastic shell, a plurality of female terminals inserted in a plug-in channel of the female end plastic shell, and an FPC crimped and connected to the female terminals, each female terminal being respectively provided with a card slot, the female end plastic shell being provided with a card connecting tongue piece corresponding to each card slot, when the female terminal is fully inserted into the female end plastic shell, the card connecting tongue piece is embedded in the card slot to form a primary locking structure, each female terminal is also provided with an abutting piece, a through slot is penetrated through the female end plastic shell, a locking strip is inserted in the through slot, each abutting piece abuts against the locking strip to form a secondary locking structure, a spring sheet is provided on the locking strip, a card connecting protrusion fixed to the female end plastic shell is provided on the spring sheet, and also comprises a female terminal removal jig, the female terminal removal jig comprises a plate body and a plurality of ejectors provided on the plate body, the plurality of ejectors can extend into the plug-in channel and push open the card connecting tongue piece.

[0005] Preferably, one end of the female terminal plastic shell is provided with a positioning groove at the through groove, and the end of the locking strip is provided with a stopper capable of abutting against the positioning groove.

[0006] Preferably, the cross-sectional shapes of the through slot and the locking strip are both L-shaped.

[0007] Preferably, a pressing extension portion is provided at the end of the spring sheet.

[0008] The utility model has the following advantages over the prior art: by setting a snap-on tongue piece in the female end plastic shell, it can correspond to the card slot of the female terminal. After the female terminal is inserted into the plug-in channel, the snap-on tongue piece and the card slot are snap-fitted to form a primary lock structure. By setting the cooperation between the locking strip and the through slot, the abutment piece of each female terminal can be abutted and fixed with the locking strip to form a secondary lock structure, wherein the spring piece of the locking strip is inserted into the female end plastic shell to fix the locking strip. During disassembly, the present solution provides an independent female terminal removal jig, which can push open the snap-on tongue piece through a plurality of ejector pins. During disassembly, first press the spring piece to release the fixation of the locking strip and the female end plastic shell, then pull out the locking strip, and use the female terminal removal jig to push open the snap-on tongue piece, so that the female terminal can be removed from the female end plastic shell. The entire solution design is convenient for disassembly and assembly, and improves efficiency and convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of a locking structure of a piercing terminal connector of the utility model;

[0010] Figure 2 It is a schematic diagram of the structure of the locking strip of the utility model;

[0011] Figure 3 It is a structural schematic diagram of the through groove on the female end plastic shell of the utility model;

[0012] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of the middle part A;

[0013] Figure 5 This is a schematic diagram of the structure after the locking strip is assembled to the female end plastic shell;

[0014] Figure 6 This is a schematic diagram of the structure of the jig for removing the female terminal;

[0015] Figure 7 It is a front view of the piercing terminal connector of the utility model;

[0016] Figure 8 for Figure 7 Cross-sectional view of the AA section;

[0017] Fig. 9 for Figure 7 Cross-sectional view of the middle BB part;

[0018] Fig.10 It is a side view of the piercing terminal connector of the utility model;

[0019] Fig.11 for Fig.10 Cross-sectional view of the CC section;

[0020] Fig.12 for Fig.11 Schematic diagram of the enlarged structure of part A in the middle.

[0021] In the figure: 1. female end plastic shell; 2. plug-in channel; 3. snap-on tongue; 4. through slot; 5. positioning slot; 7. female terminal; 8. snap-on slot; 9. abutment sheet; 10. FPC; 11. locking strip; 12. spring; 13. stopper; 14. female terminal removal jig; 15. plate; 16. ejector pin; 17. snap-on protrusion. DETAILED DESCRIPTION

[0022] The utility model will be further described below in conjunction with the accompanying drawings.

[0023] like Figure 1 As shown, a locking structure of a piercing terminal connector comprises a female end plastic shell 1, a plurality of female terminals 7 inserted in an insertion channel 2 of the female end plastic shell 1, and an FPC 10 crimped and connected to the female terminal 7, each female terminal 7 is respectively provided with a card slot 8, and a card connection tongue piece 3 corresponding to each card slot 8 is provided in the female end plastic shell 1. When the female terminal 7 is fully inserted into the female end plastic shell 1, the card connection tongue piece 3 is embedded in the card slot 8 to form a one-time locking structure, and an abutment piece 9 is also provided on each female terminal 7. A through slot 4 is provided on the end plastic shell 1, a locking strip 11 is inserted in the through slot 4, each abutting piece 9 abuts against the locking strip 11 to form a secondary lock structure, a spring piece 12 is provided on the locking strip 11, and a snap-fit ​​protrusion 17 fixed to the female end plastic shell 1 is provided on the spring piece 12, and a female terminal removal jig 14 is also included, the female terminal removal jig 14 includes a plate body 15 and a plurality of ejector pins 16 arranged on the plate body 15, and the plurality of ejector pins 16 can extend into the plug-in channel 2 and push open the snap-fit ​​tongue piece 3.

[0024] A locking structure of a piercing terminal connector of this solution, referring to the attached Figure 8 By setting a snap-on tongue piece 3 in the female end plastic shell 1, which can correspond to the card slot 8 of the female terminal 7, after the female terminal 7 is inserted into the insertion channel 2, the snap-on tongue piece 3 and the card slot 8 are snap-fitted to form a one-time locking structure, refer to the attached Figure 2-5 8-12, by setting the lock bar 11 and the through groove 4, the abutment piece 9 of each female terminal 7 can be abutted and fixed with the lock bar 11 to form a secondary lock structure, wherein the snap-fit ​​protrusion 17 of the spring piece 12 is inserted into the female end plastic shell 1 to fix the lock bar 11. During disassembly, this solution is provided with an independent female terminal removal jig 14, which can push open the snap-fit ​​tongue piece 3 through a plurality of ejector pins 16. During disassembly, first press the spring piece 12 to release the fixation of the lock bar 11 and the female end plastic shell 1, then pull out the lock bar 11, and use the female terminal removal jig 14 to push open the snap-fit ​​tongue piece 3, so that the female terminal 7 can be removed from the female end plastic shell 1. The entire solution design is convenient for disassembly and assembly, and improves efficiency and convenience.

[0025] See attached Fig. 9 And attached Fig.11 The locking strip 11 can abut against the upper and lower rows of female terminals 7 in the female terminal assembly to form a secondary locking structure for all female terminals 7. Fig.12 The snap-fitting protrusion 17 of the spring piece 12 is inserted into the gap of the female terminal 7 to form a fixation. When disassembling, first press the spring piece 12 to release the fixation of the locking strip 11 and the female plastic shell 1, and then pull out the locking strip 11 to release the secondary locking structure. The disassembly and assembly process is very convenient and fast.

[0026] See attached Figure 2-6 , which are a structural diagram of the locking strip 11, a structural diagram of the female terminal 7 without the locking strip 11 inserted therein, and a structural diagram after the locking strip 11 is inserted into the female terminal plastic shell 1.

[0027] Preferably, one end of the female terminal 7 plastic shell is provided with a positioning groove 5 at the through groove 4, and the end of the locking strip 11 is provided with a stopper 13 that can abut against the positioning groove 5. This arrangement can improve the positioning accuracy of the locking strip 11 and prevent the locking strip 11 from falling out.

[0028] Preferably, the cross-sectional shapes of the through slot 4 and the locking strip 11 are both L-shaped.

[0029] Preferably, a pressing extension portion 17 is provided at the end of the spring piece 12. The pressing extension portion 17 can facilitate the connection and separation of the spring piece 12 and the female end plastic shell 1.

[0030] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A locking structure of a piercing terminal connector, characterized in that: The present invention comprises a female end plastic shell, a plurality of female terminals inserted in the plug-in channel of the female end plastic shell, and an FPC crimped and connected to the female terminals, each female terminal is respectively provided with a card slot, a card tongue piece corresponding to each card slot is provided in the female end plastic shell, when the female terminal is fully inserted into the female end plastic shell, the card tongue piece is embedded in the card slot to form a primary lock structure, each female terminal is also provided with an abutment piece, a through slot is penetrated through the female end plastic shell, a locking strip is inserted in the through slot, each abutment piece abuts against the locking strip to form a secondary lock structure, a spring piece is provided on the locking strip, a card protrusion fixed to the female end plastic shell is provided on the spring piece, and a female terminal removal jig is also included, the female terminal removal jig comprises a plate body and a plurality of ejectors provided on the plate body, the plurality of ejectors can extend into the plug-in channel and push open the card tongue piece.

2. The locking structure of the piercing terminal connector according to claim 1, characterized in that: One end of the female terminal plastic shell is provided with a positioning groove at the through groove, and the end of the locking strip is provided with a stopper capable of abutting against the positioning groove.

3. The locking structure of the piercing terminal connector according to claim 1, characterized in that: The cross-sectional shapes of the through slot and the locking strip are both L-shaped.

4. The locking structure of the piercing terminal connector according to claim 1, characterized in that: The end of the spring sheet is provided with a pressing extension portion.

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