Multi-layer piercing wiring terminal and fast-assembly multipurpose plug

Abstract

The utility model discloses a multi-layer piercing wiring terminal and a fast-assembly multipurpose plug, the wiring end of the multi-layer piercing wiring terminal is in a U-shaped structure, each side wall of the wiring end is formed by bending and overlapping two thin walls, each thin wall is provided with a wire clamping groove, and the opposite inner wall of each wire clamping groove is provided with a piercing part. According to the utility model, four layers of thorn protrusions which can pierce the outer sheath of the wire can be formed on the wiring end of the wiring terminal, so that the wire penetrating through the wire clamping groove can be in multi-point large-area contact with the wiring end for electric conduction, and the overload current is large; the plug body is provided with a plurality of positioning grooves and wire passing grooves, so that a plurality of multi-layer piercing wiring terminals can be conveniently and directly clamped on the plug body in one step, a lead can be conveniently and quickly connected in a penetrating manner, and the lead does not need to be peeled and welded or a core wire does not need to be clamped during wiring; the wire jacket can be automatically broken by sliding to conduct the core wire and the wiring end only by slightly lifting the wire, and the operation is convenient and fast.

Description

Technical Field

[0001] This utility model relates to the field of terminal block technology, and in particular to multi-layer piercing terminal blocks and quick-connect multi-purpose plugs. Background Technology

[0002] Terminal blocks are mainly used to connect wires to the connection ports of electrical equipment. In order to meet the power demand of high power and high current, most of them currently increase the overload current by increasing the contact area of ​​the male and female terminals that make up the mating fit. In application, one end of the wire needs to be stripped and the core wire soldered or crimped to one end of the terminal, and then the other end is plugged into another terminal. This is not only time-consuming and troublesome, but also requires a certain amount of operating space. Moreover, the feel of plugging and unplugging will gradually deteriorate over the years.

[0003] Based on the above problems, this utility model improves the structure of the terminal and the plug structure used with it to improve the wiring efficiency of high current terminals. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a multi-layer spiked terminal block and a quick-connect multi-purpose plug. It can form four layers of spikes on the terminal block that can pierce the outer sheath of the wire, thereby ensuring that the wire passing through the clamping groove can maintain multi-point, large-area contact with the terminal block for electrical conduction. It has a large overload current and can install the multi-terminal block onto the plug body in one step. There is no need to strip the wire and solder or clamp the core wire. Simply lift the wire gently to automatically slide through the outer sheath of the wire to conduct the core wire to the terminal block. The operation is convenient and quick.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A multi-layer piercing terminal block, comprising a terminal and a conductive terminal, wherein:

[0007] The terminal has a U-shaped structure and two parallel first sidewalls. One of the first sidewalls is connected to the conductive end. A clearance groove extending to the two first sidewalls is formed in the middle of the bottom of the terminal.

[0008] Each of the first sidewalls is a T-shaped structure formed by bending and overlapping two integrally formed thin walls. Each sidewall includes a positioning part, a connecting part, and a wire clamping part. The positioning part is located on the outer wall of each thin wall and extends outward. The connecting part connects to the larger end of the two thin walls. The wire clamping part is located on the smaller end of each thin wall and includes a wire clamping groove extending in the same direction as the smaller end of the thin wall and penetrating through the two first sidewalls. One end of the wire clamping groove is connected to the clearance groove. Each thin wall has a piercing part and a guiding part on its two opposite sidewalls facing the wire clamping groove. Each guiding part is located at the end of the wire clamping groove and can guide a wire into the wire clamping groove. Each piercing part can pierce the outer sheath of the wire entering the wire clamping groove to expose its inner core wire.

[0009] As a further explanation of the above technical solution:

[0010] In the above technical solution, each of the guide portions is a chamfer located at one end of the clamping groove and extending outward, and the chamfers on the two thin walls facing each other on the two first side walls are connected to the clearance groove.

[0011] In the above technical solution, each of the puncture portions is coplanar with the thin wall and includes a puncture protrusion and a guide groove. Each puncture protrusion extends toward the inner side of the clamping groove, and each guide groove is a V-shaped groove with its middle part disposed on the thin wall, and its two walls intersecting the puncture protrusion and the inner wall of the clamping groove at an inclination, respectively.

[0012] In the above technical solution, at least one of the thin walls has a locking portion formed on at least one side of its outer wall, and each locking portion extends toward the outer side of the thin wall and is coplanar with it.

[0013] In the above technical solution, the conductive end is disposed between the two first sidewalls and connected to a thin wall to form a Z-shape.

[0014] One technical solution adopted by this utility model is as follows:

[0015] A quick-connect multi-purpose plug includes a plug body, wherein the plug body is provided with two or more multi-layer piercing terminals as described in the previous technical solution, and the terminals are all embedded in the plug body, and the conductive ends extend to the outside of the plug body. The plug body is provided with a plurality of wire-passing grooves that communicate one by one with each of the wire clamping grooves, and each wire-passing groove penetrates the plug body.

[0016] As a further explanation of the above technical solution:

[0017] In the above technical solution, the plug body is provided with a plurality of positioning grooves that are adapted to the wiring terminal. Each positioning groove includes two T-shaped grooves arranged in parallel and communicating with each other. Each T-shaped groove is adapted to a first side wall.

[0018] In the above technical solution, a limiting protrusion for placing wires is also formed on the plug body between the two T-shaped grooves.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting the terminal to a U-shaped structure, setting each of its first side walls to be formed by two thin walls bent and overlapping, setting a wire clamping groove on each thin wall, and setting a piercing part on the opposite wall of each wire clamping groove, four layers of piercing protrusions that can pierce the outer sheath of the wire can be formed on the terminal, thereby ensuring that the wire passing through the wire clamping groove can maintain multi-point large-area contact with the terminal for electrical conduction, and the overload current is large; by setting multiple positioning grooves and wire passage grooves on the plug body, it is convenient to directly snap multiple multi-layer piercing terminals onto the plug body in one step, and facilitate the quick connection of wires. When wiring, there is no need to strip the wire and solder or snap the core wire. Just gently lift the wire to automatically slide through the outer sheath of the wire to conduct the core wire to the terminal, making the operation convenient and quick. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the multi-layer piercing terminal block in this embodiment;

[0021] Figure 2 This is a structural schematic diagram of the multi-layer piercing terminal block from another perspective in this embodiment;

[0022] Figure 3 yes Figure 2 Enlarged structural diagram of section A in the middle;

[0023] Figure 4 This is a side view of the multi-layer piercing terminal structure in this embodiment;

[0024] Figure 5 This is a front view schematic diagram of the multi-layer piercing terminal structure in this embodiment;

[0025] Figure 6 yes Figure 5 Enlarged structural diagram of section B in the middle;

[0026] Figure 7 This is a schematic diagram of the assembly structure of the plug and terminal in this embodiment;

[0027] Figure 8 yes Figure 7 A schematic diagram of the cross-sectional structure of the C-C section;

[0028] Figure 9This is a schematic diagram of the plug structure in this embodiment.

[0029] In the diagram: 100, multi-layer piercing terminal block; 200, quick-connect multi-purpose plug; 300, wire; 10, terminal block; 11, first side wall; 12, clearance groove; 13, thin wall; 20, conductive end; 30, plug body; 31, wire passage groove; 32, positioning groove; 33, limiting protrusion; 1, positioning part; 2, connecting part; 3, wire clamping part; 4, wire clamping groove; 5, piercing part; 501, piercing protrusion; 502, guide groove; 6, guide part; 7, clamping part; 8, T-slot; 9, positioning hole groove. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings.

[0031] The embodiments described with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "several" or "more than" means two or more, unless otherwise explicitly specified. In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of a second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] like Figure 1-6 As shown, the multi-layer piercing terminal 100 includes a terminal 10 and a conductive terminal 20.

[0033] like Figure 1-3 As shown, the terminal 10 has a U-shaped structure and two parallel first sidewalls 11 are formed. One of the first sidewalls 11 is connected to the conductive end 20. A clearance groove 12 extending to the two first sidewalls 11 is formed in the middle of the bottom of the terminal 10.

[0034] like Figure 4-6 As shown, each first sidewall 11 is a T-shaped structure and is formed by bending and overlapping two integrally formed thin walls 13. Each includes a positioning part 1, a connecting part 2, and a wire clamping part 3. The positioning part 1 is provided on the outer wall of each thin wall 13 and extends outward. The connecting part 2 connects to the larger end of the two thin walls 13. The wire clamping part 3 is provided on the smaller end of each thin wall 13 and includes a wire clamping groove 4 that extends in the same direction as the smaller end of the thin wall 13 and penetrates the two first sidewalls. One end of the wire clamping groove 4 is connected to the clearance groove 12. Each thin wall 13 has a piercing part 5 and a guide part 6 formed on the two opposite sidewalls facing the wire clamping groove 4. Each guide part 6 is provided at the end of the wire clamping groove 4 and can guide a wire 300 into the wire clamping groove 4. Each piercing part 5 can pierce the outer sheath of the wire 300 that enters the wire clamping groove 4 to expose its inner core wire.

[0035] like Figure 2-3 As shown, each guide portion 6 is a chamfered section located at one end of the wire clamping groove 4 and extending outward. The chamfers on the two opposing thin walls 13 on the two first side walls 11 are connected to the clearance groove 12. In application, the width of the wire clamping groove 4 can be set according to the diameter of the commonly used wire 300 to meet the needs of piercing and clamping the wire 300 in different application scenarios.

[0036] like Figure 4 As shown, the conductive end 20 is located between the two first side walls 11 and connected to a thin wall 13 to form a Z-shape, and its end away from the terminal 10 is provided with a positioning hole groove 9.

[0037] like Figure 5-6 As shown, each puncture portion 5 is coplanar with the thin wall 13 and includes a puncture protrusion 501 and a guide groove 502. Each puncture protrusion 501 extends toward the inner side of the wire clamping groove 4. Each guide groove 502 is a V-shaped groove with its middle part disposed on the thin wall 13, and its two walls intersect obliquely with the inner wall of the puncture protrusion 501 and the wire clamping groove 4, respectively. At least one outer wall of the thin wall 13 has a clamping portion 7 formed on at least one side. Each clamping portion 7 extends toward the outer side of the thin wall 13 and is coplanar with it.

[0038] Understandably, the guide part 6 can guide the guide wire 300 to slide quickly into the wire clamping groove 4, the piercing protrusion 501 can slide through the outer sheath of the wire, and the V-shaped guide groove 502 can give the operator a clear operating feel of the wire 300 passing through the piercing part 5, which ensures that the wire is pierced, and can further flip the pierced outer sheath to both sides to ensure that the internal core wire and the side wall of the wire clamping groove 4 remain in contact.

[0039] This invention features a U-shaped terminal 10, with each of its first sidewalls 11 formed by two thin walls 13 bent and overlapped. Each thin wall 13 has a wire clamping groove 4, and each opposite wall of the wire clamping groove 4 has a piercing part 5. This allows four layers of piercing protrusions 501 to be formed on the terminal 10, which can pierce the outer sheath of the wire. This ensures that the wire passing through the wire clamping groove 4 can maintain multi-point, large-area contact with the terminal 10 for electrical conduction, resulting in a large overload current. By placing the conductive end 20 between the two first sidewalls 11, it is easy to flip the terminal according to the usage requirements to meet the assembly and connection of the conductive end 10.

[0040] like Figure 7-9 As shown, in an embodiment of the quick-connect multi-purpose plug 200 used to support the multiple piercing terminals 100 in the above embodiments, the quick-connect multi-purpose plug 200 includes a plug body 30. The plug body 30 is provided with two or more multi-layer piercing terminals 100 as described in the above embodiments, and the terminals 10 of each terminal are embedded in the plug body 30. The conductive terminals 20 extend to the outside of the plug body 30. The plug body 30 is provided with a plurality of wire passage grooves 31 that communicate one-to-one with each wire clamping groove 4. Each wire passage groove 31 penetrates the plug body 30.

[0041] like Figure 8-9 As shown, the plug body 30 has several positioning grooves 32 arranged side by side to fit the terminal 10. Each positioning groove 32 includes two T-shaped grooves 8 arranged side by side and connected to each other. Each T-shaped groove 8 is fitted to a first side wall 11. A limiting protrusion 33 for placing the wire 300 is also formed on the plug body 30 between the two T-shaped grooves 8.

[0042] Understandably, the limiting protrusion 33 can guide the wire 300 forward when it passes between the two T-slots 8, preventing the front end of the wire 300 from bending and getting stuck in the plug body 30, thus ensuring smooth wire threading.

[0043] In this embodiment, the plug body 30 is fitted with two multi-layer piercing terminals 100, and the widths of the wire clamping grooves 4 on the two terminals are different, which can respectively clamp core wires with diameters of 0.85-1.10mm and 0.5-0.85mm.

[0044] like Figure 8-9As shown, during assembly, each first sidewall 11 of the multi-layer piercing terminal 100 is inserted into a T-shaped groove 8 until the locking part 7 is stuck on the inner wall of the T-shaped groove 8 and cannot move. During use, a wire 300 is inserted from the bottom of a wire passage groove 31, passes through the wire clamping groove 4, and exits from another wire passage groove 31. Then, holding one end of the wire 300 in each hand, the wire 300 is pulled towards the conductive end 20. The wire 300 enters the two wire clamping grooves 4 through the guide part 6 and is pierced by the piercing part 5 on each wire clamping groove 4, exposing the conductive core wire inside. This completes the conductive connection between the wire 300 and the multi-layer piercing terminal 100. Assembly and use are very convenient.

[0045] The above does not limit the technical scope of this utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall still fall within the technical scope of this utility model.

Claims

1. A multi-layer piercing terminal block, wherein the multi-layer piercing terminal block includes a terminal block and a conductive terminal, characterized in that: The terminal has a U-shaped structure and two parallel first sidewalls. One of the first sidewalls is connected to the conductive end. A clearance groove extending to the two first sidewalls is formed in the middle of the bottom of the terminal. Each of the first sidewalls is a T-shaped structure formed by bending and overlapping two integrally formed thin walls. Each sidewall includes a positioning part, a connecting part, and a wire clamping part. The positioning part is located on the outer wall of each thin wall and extends outward. The connecting part connects to the larger end of the two thin walls. The wire clamping part is located on the smaller end of each thin wall and includes a wire clamping groove extending in the same direction as the smaller end of the thin wall and penetrating through the two first sidewalls. One end of the wire clamping groove is connected to the clearance groove. Each thin wall has a piercing part and a guiding part on its two opposite sidewalls facing the wire clamping groove. Each guiding part is located at the end of the wire clamping groove and can guide a wire into the wire clamping groove. Each piercing part can pierce the outer sheath of the wire entering the wire clamping groove to expose its inner core wire.

2. The multi-layer piercing terminal block according to claim 1, characterized in that, Each of the guide portions is a chamfer located at one end of the clamping groove and extending outwards, and the chamfers on the two opposing thin walls of the two first sidewalls are connected to the clearance groove.

3. The multi-layer piercing terminal block according to claim 1, characterized in that, Each of the puncture portions is coplanar with the thin wall and includes a puncture protrusion and a guide groove. Each puncture protrusion extends toward the inner side of the clamping groove, and each guide groove is a V-shaped groove with its middle part disposed on the thin wall, and its two walls intersecting obliquely with the puncture protrusion and the inner wall of the clamping groove, respectively.

4. The multi-layer piercing terminal block according to claim 1, characterized in that, At least one of the thin walls has a locking portion formed on at least one side of its outer wall, each locking portion extending toward the outside of the thin wall and being coplanar with it.

5. The multi-layer piercing terminal block according to claim 1, characterized in that, The conductive end is located between the two first sidewalls and is connected to one of the thin walls to form a Z-shape.

6. A quick-connect multi-purpose plug, including a plug body, characterized in that, The plug body is provided with two or more multi-layer piercing terminals as described in any one of claims 1-5, and the terminals are all embedded in the quick-connect multi-purpose plug. The conductive terminals all extend to the outside of the quick-connect multi-purpose plug. The plug body is provided with a plurality of wire-passing grooves that communicate with each of the wire clamping grooves, and each wire-passing groove penetrates the plug body.

7. The quick-connect multi-purpose plug according to claim 6, characterized in that, The plug body is provided with several positioning slots that are adapted to the terminal block. Each positioning slot includes two T-shaped slots arranged side by side and connected to each other. Each T-shaped slot is adapted to a first side wall.

8. The quick-connect multi-purpose plug according to claim 7, characterized in that, The plug body also has a limiting protrusion formed between the two T-shaped slots for placing the wire.

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