Low-cost puncture type terminal connector easy to disassemble and assemble

Abstract

The utility model discloses a puncture type terminal connector low in cost and easy to disassemble and assemble. According to the technical scheme, the connector comprises a male end assembly and a female end assembly, the female end assembly 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, and the FPC is provided with a plurality of preformed holes for crimping teeth at the tail portions of the female terminals to be directly inserted. Each female terminal is provided with a clamping groove, 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 pieces are embedded into the clamping grooves 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, and the abutting piece is inserted into the through groove. A locking strip is inserted in the through groove, each abutting piece abuts against the locking strip to form a secondary lock structure, the locking strip is provided with an elastic piece, the elastic piece is provided with a clamping protruding part fixed to the female end plastic shell, and the female terminal disassembling device further comprises a female terminal disassembling jig. The scheme provided by the utility model is low in cost and convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a low-cost, easily disassembled, piercing 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. The piercing terminal connector structure of the prior art generally has the following two problems: first, in the crimping structure between the female terminal and the FPC, the crimping teeth at the tail of the female terminal need to be sharper, and a female terminal material with higher hardness is required to match the crimping teeth. The higher hardness requirement of the female terminal material will increase the overall cost; second, the female terminal and the female terminal 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 low-cost, easy-to-disassemble and pierce terminal connector that is low in cost and convenient to assemble and disassemble.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a low-cost, easily disassembled and assembled piercing terminal connector, comprising a male end component and a female end component, the male end component comprising a male end plastic shell and a plurality of male terminals inserted in the male end plastic shell, the female end component comprising a female end plastic shell, a plurality of female terminals inserted in the female end plastic shell plugging channel and an FPC crimped and connected to the female terminals, the FPC being provided with a plurality of reserved holes for direct insertion of the crimping teeth at the tail of the female terminal, each female terminal being provided with a card slot, and the female end plastic shell being provided with a card slot corresponding to each card slot A tongue piece, when the female terminal is fully inserted into the female plastic shell, the locking tongue piece is embedded in the slot to form a primary lock structure, each female terminal is also provided with an abutment piece, the female plastic shell is penetrated with a through slot, a locking strip is inserted in the through slot, each abutment piece abuts against the locking strip to form a secondary lock structure, the locking strip is provided with a spring sheet, the spring sheet is provided with a locking protrusion fixed to the female plastic shell, and also includes a female terminal removal jig, the female terminal removal jig includes a plate body and a plurality of ejector pins arranged on the plate body, the plurality of ejector pins can extend into the plug-in channel and push open the locking 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 limit strip is arranged inside the male end plastic shell, and a limit groove capable of cooperating with the limit strip is arranged outside the female end plastic shell.

[0008] Preferably, the reserved hole is circular or rectangular in shape.

[0009] Compared with the prior art, the utility model has the following advantages: by providing a reserved hole on the FPC, the reserved hole can be directly passed through when crimping with the female terminal, thereby improving efficiency, and the hardness requirement of the female terminal material is not high, which can reduce the material cost. In addition, by providing 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 providing a lock bar and a through groove, the abutment piece of each female terminal can be abutted and fixed with the lock bar to form a secondary lock structure, wherein the spring piece of the lock bar is inserted into the female end plastic shell to achieve fixation. During disassembly, the present scheme provides an independent female terminal removal jig, which can push open the snap-on tongue piece through multiple ejectors. During disassembly, first press the spring piece to release the fixation of the lock bar and the female end plastic shell, then pull out the lock bar, 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 scheme design is convenient for disassembly and assembly, and improves efficiency and convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the structure of a low-cost, easy-to-disassemble piercing terminal connector of the utility model. Figure 1 ;

[0011] Figure 2 This is a schematic diagram of the structure of a low-cost, easy-to-disassemble piercing terminal connector of the utility model. Figure 2 ;

[0012] Figure 3 It is a structural diagram of an FPC with reserved holes;

[0013] Figure 4 It is a schematic diagram of the structure of the female terminal before crimping;

[0014] Figure 5 It is a schematic diagram of the structure of the FPC and the female terminal after crimping of the utility model;

[0015] Figure 6 for Figure 5 A schematic diagram of the enlarged structure of the middle part A;

[0016] Figure 7 It is a schematic diagram of the structure of the locking strip of the utility model;

[0017] Figure 8 It is a structural schematic diagram of the through groove on the female end plastic shell of the utility model;

[0018] Fig. 9 for Figure 8 A schematic diagram of the enlarged structure of the middle part A;

[0019] Fig.10 This is a schematic diagram of the structure after the locking strip is assembled to the female end plastic shell;

[0020] Fig.11 This is a schematic diagram of the structure of the jig for removing the female terminal;

[0021] Fig.12 It is a front view of the female end assembly of the utility model;

[0022] Fig.13 for Fig.12 Cross-sectional view of the AA section;

[0023] Fig.14 for Fig.12 Cross-sectional view of the middle BB part;

[0024] Fig.15 It is a side view of the female end assembly of the utility model;

[0025] Fig.16 for Fig.15 Cross-sectional view of the CC section;

[0026] Fig.17 for Fig.16 Schematic diagram of the enlarged structure of part A in the middle.

[0027] In the figure: 1. male terminal assembly; 11. male terminal plastic shell; 111. limiting strip; 12. male terminal; 2. female terminal assembly; 21. female terminal plastic shell; 211. plug-in channel; 212. snap-on tongue; 213. through slot; 214. positioning slot; 215. limiting slot; 22. female terminal; 221. snap-on slot; 222. abutment sheet; 223. crimping tooth; 23. FPC; 231. reserved hole; 24. locking strip; 241. spring sheet; 2411. snap-on protrusion; 242. abutment; 3. female terminal removal jig; 31. plate; 32. ejector pin. DETAILED DESCRIPTION

[0028] The utility model will be further described below in conjunction with the accompanying drawings.

[0029] like Figure 1As shown, a low-cost, easily disassembled and assembled piercing terminal connector comprises a male end component 1 and a female end component 2, wherein the male end component 1 comprises a male end plastic shell 11 and a plurality of male terminals 12 inserted in the male end plastic shell 11, the female end component 2 comprises a female end plastic shell 21, a plurality of female terminals 22 inserted in an insertion channel 211 of the female end plastic shell 21, and an FPC 23 crimped and connected to the female terminal 22, wherein the FPC 23 is provided with a plurality of reserved holes 231 for directly inserting the crimping teeth 223 at the tail of the female terminal 22, each female terminal 22 is respectively provided with a card slot 221, and a card tongue 212 corresponding to each card slot 221 is provided in the female end plastic shell 21, and the female terminal 22 is completely When inserted into the female end plastic shell 21, the snap-fit ​​tongue piece 212 is embedded in the snap-fit ​​groove 221 to form a one-time locking structure. Each female terminal 22 is also provided with a contact piece 222. A through groove 213 is penetrated through the female end plastic shell 21. A locking strip 24 is inserted in the through groove 213. Each contact piece 222 abuts against the locking strip 24. A spring piece 241 is provided on the locking strip 24. A snap-fit ​​protrusion 2411 fixed to the female end plastic shell 21 is provided on the spring piece 241. The female end plastic shell 21 also includes a female terminal removal jig 3. The female terminal removal jig 3 includes a plate body 31 and a plurality of ejector pins 32 arranged on the plate body 31. The plurality of ejector pins 32 can extend into the insertion channel 211 and push open the snap-fit ​​tongue piece 212.

[0030] The present invention is a low-cost, easy-to-detach and pierce terminal connector. By opening a reserved hole 231 on the FPC 23, the female terminal 22 can be directly passed through the reserved hole 231 when crimping, thereby improving efficiency, and the hardness requirement of the FPC 23 material is not high, which can reduce the material cost. Figure 3-6 , respectively showing the structure of the FPC and the female terminal before and after crimping. The crimping process is to punch a reserved hole in the FPC after the FPC is fed, locate the FPC reserved hole to the female terminal crimping point and the crimping tooth 223, and finally crimp into shape. In addition, refer to the attached Fig.13 By setting a snap-on tongue piece 212 in the female end plastic shell 21, which can correspond to the snap-on slot 221 of the female terminal 22, after the female terminal 22 is inserted into the insertion channel 211, the snap-on tongue piece 212 and the snap-on slot 221 snap-fit ​​to form a one-time lock structure, refer to the attached Figure 13-14and 16-17, by setting the lock bar 24 and the through groove 213, the abutment piece 222 of each female terminal 22 can be abutted and fixed with the lock bar 24 to form a secondary lock structure, wherein the snap-fitting protrusion 2411 of the spring piece 241 is inserted into the gap of the female terminal 22 to form a fixation. During disassembly, this scheme is provided with an independent female terminal removal jig 3, which can push open the snap-fitting tongue piece 212 through a plurality of ejector pins 32. During disassembly, first press the spring piece 241 to release the fixation of the lock bar 24 and the female terminal plastic shell 21, then pull out the lock bar 24, and use the female terminal removal jig 3 to push open the snap-fitting tongue piece 212, so that the female terminal 22 can be removed from the female terminal plastic shell 21. The whole scheme design is convenient for disassembly and assembly, and improves efficiency and convenience.

[0031] See attached Fig.14 And attached Fig.16 The locking strip 24 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.17 The snap-fitting protrusion 2411 of the spring piece 241 is inserted into the gap of the female terminal 22 to form a fixation. When disassembling, first press the spring piece 241 to release the fixation of the locking bar 24 and the female terminal plastic shell 21, and then pull out the locking bar 24 to release the secondary locking structure. The disassembly and assembly process is very convenient and fast.

[0032] See attached Figure 7-10 , which are the structural diagrams of the locking bar, the structural diagram of the female terminal without the locking bar inserted, and the structural diagram after the locking bar is inserted into the female terminal plastic shell.

[0033] Preferably, one end of the plastic shell of the female terminal 22 is provided with a positioning groove 214 at the through groove 213, and the end of the locking strip 24 is provided with a stopper 242 capable of abutting against the positioning groove 214. Such a configuration can improve the positioning accuracy of the locking strip 24.

[0034] Preferably, the cross-sectional shapes of the through slot 213 and the locking strip 24 are both L-shaped.

[0035] Preferably, a limit strip 111 is provided inside the male end plastic shell 11, and a limit groove 215 capable of cooperating with the limit strip 111 is provided outside the female end plastic shell 21. The purpose of such arrangement is to improve the docking accuracy of the female end component 2 and the male end component 1.

[0036] Preferably, the reserved hole 231 is circular or rectangular in shape.

[0037] 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 low-cost, easily disassembled, piercing terminal connector, comprising a male end assembly and a female end assembly, wherein the male end assembly comprises a male end plastic shell and a plurality of male terminals inserted in the male end plastic shell, and the female end assembly comprises 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, characterized in that: The FPC is provided with a plurality of reserved holes for directly inserting the crimping teeth at the tail of the female terminal, and each female terminal is respectively provided with a card slot, and a card tongue piece corresponding to each card slot is provided in the female end plastic shell, and 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, and each female terminal is also provided with an abutment piece, and a through groove is penetrated through the female end plastic shell, and a locking strip is inserted in the through groove, and each abutment piece abuts against the locking strip to form a secondary lock structure, and a spring sheet is provided on the locking strip, and a card protrusion fixed to the female end plastic shell is provided on the spring sheet, and a female terminal removal jig is also included, and the female terminal removal jig includes a plate body and a plurality of ejectors arranged on the plate body, and the plurality of ejectors can extend into the plug-in channel and push open the card tongue piece.

2. A low-cost, easily detachable 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. A low-cost, easily detachable 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. A low-cost, easily detachable piercing terminal connector according to claim 1, characterized in that: A limit strip is arranged inside the male end plastic shell, and a limit groove capable of cooperating with the limit strip is arranged outside the female end plastic shell.

5. A low-cost, easily detachable piercing terminal connector according to claim 1, characterized in that: The shape of the reserved hole is circular or rectangular.

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