Connection limiting piece for electric connection terminal

Abstract

The utility model discloses an electric connection terminal connection limiting piece, which comprises a female head assembly and a male head assembly, the female head assembly is provided with a slot, the male head assembly is provided with a plug butted with the slot, a limiting elastic sheet is fixed on the corresponding upper side of the female head assembly, the female head assembly is correspondingly provided with a connecting part, and the limiting elastic sheet is divided into a front end clamping part and a tail seat. The position of the clamping part is provided with a clamping block, and the corresponding upper side of the male head assembly is provided with a plurality of strip-shaped grooves which are used for being matched with the clamping block for clamping. When the male head assembly and the female head assembly are installed, corresponding plugs and slots are inserted in an aligned mode, meanwhile, clamping blocks corresponding to limiting elastic pieces are clamped into corresponding strip-shaped grooves, the male head assembly is clamped, the situation that the male head assembly is easily tripped under the action of external force is prevented, meanwhile, the limiting elastic pieces can cover connecting parts, and the good protection effect is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric connection terminals, and in particular relates to a connection limiting member of an electric connection terminal. Background Art

[0002] The plug-in quick-connect terminal series combines easy-to-operate pluggable connections with a firm and universal screw method. The plug-in quick-connect terminal is made up of two parts that are plugged in and out. One part presses the wires tightly and then plugs into the other part, which is soldered to the PCB board and is called the female head. Mounting ears can be added to both ends of the socket. The mounting ears can largely protect the tabs and prevent the tabs from being arranged in a poor position. At the same time, this socket design can ensure that the socket can be correctly inserted into the mother body. The other end is the part terminal, which serves as the male head.

[0003] When many male components are inserted into female components, the wiring terminals lack protection and are easily disengaged or have poor contact under the action of external force. The wiring terminals with locking function are not easy to disengage after the connection is stuck, but they are prone to difficulties in disassembly. Utility Model Content

[0004] The utility model aims to provide a connection limiter for an electrical connection terminal, which mainly solves the problem that a PCB connection terminal is easy to loosen during wiring.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] An electrical connection terminal connection limiter, comprising a female component and a male component, wherein the female component has a slot, and the male component has a plug docked with the slot, wherein the slot has a rectangular notch, and the plug has positive and negative electrode terminals and a grounding terminal;

[0007] A limiting spring sheet is fixed on the corresponding upper side of the female head component. The limiting spring sheet is a plate structure and has a corresponding connecting part, which separates the limiting spring sheet into a front clamping part and a tail seat. A clamping block is provided at the position of the clamping part. The corresponding upper side of the male head component has a plurality of strip grooves for adapting to the clamping block and engaging it.

[0008] Furthermore, a steel wire is provided inside the limiting spring piece, and the steel wire extends along the tailstock to the clamping portion. There are a plurality of steel wires arranged along the width direction of the limiting spring piece.

[0009] Furthermore, the end side of the limiting spring piece corresponding to the clamping portion has an upwardly tilted rolled portion, and the end side of the limiting spring piece corresponding to the tailstock has a strip edge.

[0010] Furthermore, the connecting portion is arranged obliquely, and a dislocation groove is provided between the connecting portion and the tailstock.

[0011] The corresponding connection side of the connecting part and the clamping part has a plurality of plate ribs, and the plate ribs are arranged in an extending manner along the width direction of the limiting elastic piece.

[0012] Furthermore, the lower side of the male head assembly has a guard plate covering the plug part. The guard plate is of a plate structure and is arranged parallel to the plug part.

[0013] The utility model has the following beneficial effects: When installing the male head assembly and the female head assembly, the corresponding plug and socket are aligned and inserted. At the same time, the clamping blocks corresponding to the limiting elastic pieces are clamped into the corresponding strip-shaped grooves to clamp the male head assembly, preventing the male head assembly from being easily disengaged under the action of external force. At the same time, the limiting elastic piece can cover the connection part, playing a good protective role. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below.

[0015] Figure 1 : Structural schematic diagram of the male head assembly and the female head assembly of the present utility model in a disengaged state.

[0016] Figure 2 : Structural schematic diagram of the male head assembly and the female head assembly of the present utility model in a disconnected and inserted state.

[0017] Figure 3 : Structural schematic diagram of the cutting of the limiting elastic piece of the male head assembly of the present utility model.

[0018] In the drawings, the list of components represented by each reference numeral is as follows: female head assembly 1, male head assembly 2, socket 11, plug 21, limiting elastic piece 3, connecting part 31, clamping block 34, strip-shaped groove 23, steel wire 4, curling part 32, strip-shaped edge 33, plate rib 35, guard plate 22. Detailed Embodiments

[0019] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0020] Such as Figures 1-3Shown: An electrical connection terminal connection limiting member, including a female head assembly 1 and a male head assembly 2. The female head assembly has a mounting base for mounting and fixing on a PCB circuit board. The corresponding tail seat part of the male head assembly is used to connect with other components, and the quick plugging and unplugging connection operation is realized through the male head assembly and the female head assembly. The female head assembly 1 has a slot 11, and the male head assembly 2 has a plug 21 docked with the slot 11. The corresponding notch of the slot 11 is rectangular, and the plug 21 correspondingly has positive and negative terminal posts and a ground wire terminal post; the overall female head assembly and male head assembly are square structures, and are inserted and installed in a butt-joint manner, and the corresponding slot and plug ends are both square structures.

[0021] A limiting elastic piece 3 is fixedly arranged on the upper side corresponding to the female head assembly 1. The limiting elastic piece 3 is a plate structure, and the limiting elastic piece is approximately parallel to the upper side of the female head assembly. It correspondingly has a connecting part 31, which divides the limiting elastic piece 3 into a front-end clamping part and a tail seat. The connecting part and the limiting elastic piece are an integral structure, and are both made of plastic material and have elasticity. The length ratio of the tail seat to the length of the clamping part is about 1:4. There is a clamping block 34 at the position of the clamping part. The upper side corresponding to the male head assembly 2 has a plurality of strip-shaped grooves 23 for adapting to the clamping block 34 and engaging. The connecting part is equivalent to the supporting edge of the limiting elastic piece, which is used to connect the limiting elastic piece. At the same time, through the lever principle, when pressing the tail seat and using the connecting part as a support, the clamping block of the clamping part can be separated from the strip-shaped groove of the male head assembly, realizing the convenient unlocking operation.

[0022] When installing the male head assembly and the female head assembly, the corresponding plug and slot are aligned and inserted, and at the same time, the clamping block corresponding to the limiting elastic piece is clamped into the corresponding strip-shaped groove to clamp the male head assembly, preventing the male head assembly from being easily unlocked under the action of external force. At the same time, the limiting elastic piece can cover the connecting part, playing a good protective role.

[0023] As Figure 2 Shown: There is a steel wire 4 inside the limiting elastic piece 3. The steel wire 4 extends along the tail seat to the clamping part. There are a plurality of steel wires 4, which are arranged along the width direction of the limiting elastic piece 3. It is used to improve the toughness of the limiting elastic piece. Since the limiting elastic piece is made of plastic material, the steel wire can prevent the problem that the limiting elastic piece loses its toughness due to the influence of long-term plugging and unplugging operations and high-temperature aging.

[0024] The end side of the limiting elastic piece 3 corresponding to the clamping part has an upturned curling part 32, and the end side of the limiting elastic piece 3 corresponding to the tail seat has a strip-shaped edge 33. The curling part is used to form an outward-turning buckle for facilitating the clamping into the plug part of the male head assembly, while the strip-shaped edge facilitates the tail seat to exert force and provides a force application point. When pressing the tail seat, the finger can more easily exert force on the tail seat part.

[0025] The connecting portion 31 is inclined, and the portion of the connecting portion and the tailstock has a dislocation groove. When the tailstock is pressed, the tailstock bends, which helps to reduce the bending degree of the connecting portion and makes it easier for the clamping portion to deform. The connecting portion corresponding to the connecting side of the clamping portion has a plurality of plate ribs 35, and the plate ribs 35 are arranged along the width direction of the limiting elastic piece 3. The plate ribs are used to improve the strength of the clamping portion and prevent the clamping portion from losing toughness after multiple deformations.

[0026] As Figure 1 shown: The lower side of the male head assembly 2 has a guard plate 22 covering the plug portion. The guard plate 22 is a plate structure and is arranged in parallel with the plug 21 portion. After the male head assembly and the female head assembly are inserted together, the guard plate is used for the lower side protection of the inserted portion.

[0027] This specification selects and specifically describes these embodiments to better explain the principle and practical application of the present utility model, so that those skilled in the relevant technical field can well understand and utilize the present utility model.

Claims

1. An electrical connection terminal connection limiter, characterized in that: It comprises a female component (1) and a male component (2), wherein the female component (1) has a slot (11), and the male component (2) has a plug (21) docked with the slot (11), the slot (11) corresponding to a notch having a rectangular shape, and the plug (21) correspondingly having positive and negative electrode terminals and a grounding terminal; A limiting spring sheet (3) is fixed on the corresponding upper side of the female head component (1); the limiting spring sheet (3) is a plate structure and has a corresponding connecting portion (31) for separating the limiting spring sheet (3) into a front clamping portion and a tail seat; a clamping block (34) is provided at the position of the clamping portion; and a plurality of strip grooves (23) are provided on the corresponding upper side of the male head component (2) for adapting to the clamping block (34) and engaging with the clamping block (34).

2. The electrical connection terminal connection limiter according to claim 1, characterized in that: The limiting spring piece (3) has a steel wire (4) inside, and the steel wire (4) extends along the tail seat to the clamping portion. There are a plurality of steel wires (4) arranged along the width direction of the limiting spring piece (3).

3. The electrical connection terminal connection limiter according to claim 1, characterized in that: The end side of the limiting spring piece (3) corresponding to the clamping portion has an upwardly tilted rolled portion (32), and the end side of the limiting spring piece (3) corresponding to the tailstock has a strip-shaped edge (33).

4. The electrical connection terminal connection limiter according to claim 1, characterized in that: The connecting portion (31) is arranged obliquely, and a misalignment groove is provided between the connecting portion and the tailstock.

5. The electrical connection terminal connection limiter according to claim 4, characterized in that: The connecting portion has a plurality of plate ribs (35) on a linking side corresponding to the clamping portion, and the plate ribs (35) are arranged and extend along the width direction of the limiting spring sheet (3).

6. The electrical connection terminal connection limiter according to claim 1, characterized in that: The male connector component (2) has a protective plate (22) on the lower side thereof, which covers the plug portion. The protective plate (22) is a plate structure and is arranged parallel to the plug portion (21).

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