Plug-in type connector convenient for field wiring

Abstract

The invention provides a plug-in type connector convenient for field wiring, which comprises a male end provided with a first conductive piece and a female end provided with a second conductive piece, and is characterized in that the first conductive piece comprises a first plug-in part; the second conductive piece comprises an upper clamping piece, and the side face of the front end of the upper clamping piece is bent downwards to form a lower clamping piece. And a clamping opening for the first insertion part to be inserted is formed between the upper clamping piece and the lower clamping piece, and the first insertion part can be elastically clamped after the male end and the female end are oppositely inserted. The second conductive piece is provided with an upper clamping opening and a lower clamping opening, clamping contact with the first conductive piece is formed after the male end and the female end are in butt joint, and the conductive reliability is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of terminal block technology, and more specifically, to a plug-in connector that facilitates field wiring. Background Technology

[0002] A mating connector is a device that achieves quick electrical connection through mating and plugging. Its structure typically consists of two parts: a plug terminal (male) and a socket terminal (female). After wires are crimped to the ends of the plug and socket terminals, they can be mated together and connected to each other via internal conductive components. However, conventional mating connectors that facilitate field wiring generally have the following shortcomings:

[0003] The wiring method is simplistic, generally employing a "direct insertion" structure and lacking a wire removal function. Once the wiring is complete, repairs or replacements require cutting or forceful disassembly, resulting in low maintenance efficiency and high costs. Furthermore, the clamping spring design is geared towards single-core rigid wires, with poor adaptability to multi-core flexible wires. When inserting multi-core wires, they are easily deformed or forked by the spring clips, leading to poor contact, excessive insertion and extraction force, or even inability to insert, thus limiting the use of terminals in flexible wire harnesses.

[0004] Furthermore, existing male and female terminals typically achieve electrical conductivity by forming point or surface contact after mating. Therefore, the shape and assembly requirements for these conductive components are high. If the conductive components deform before assembly, the male and female terminals may fail to make proper contact after mating. Secondly, this design is only suitable for terminals that are not disassembled after mating. For terminals with detachable male and female terminals, repeated mating and disassembly may cause displacement or deformation of the conductive components, resulting in poor contact in subsequent use. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a convenient field-wiring plug-in connector to solve the above problems.

[0006] The present invention adopts the following solution:

[0007] This application provides a convenient field-wiring plug-in connector, including a male terminal with a first conductive element and a female terminal with a second conductive element.

[0008] The first conductive element includes a first plug-in portion; the second conductive element includes an upper clamping piece, the side of the front end of the upper clamping piece is bent downward to form a lower clamping piece; a clamping opening is formed between the upper clamping piece and the lower clamping piece for the first plug-in portion to be inserted, which can elastically clamp the first plug-in portion after the male end and the female end are inserted together.

[0009] Furthermore, the front ends of the upper clip and the lower clip are C-shaped clip portions, which are arranged back to back to form the clamping opening.

[0010] Furthermore, the front end of the first insertion part is provided with a guide slope.

[0011] Furthermore, the rear end of the lower clip is bent upward to form a first limiting part.

[0012] Furthermore, both the first conductive element and the upper clamping plate are provided with a connecting portion for connecting with the wire; the connecting portion is provided with two protrusions spaced apart; the two protrusions work together with the clamping spring to make the wire form a wave shape.

[0013] Furthermore, both the male end and the female end include a main body; the main body of the male end is fitted with a lower cover along the insertion direction, and the main body of the female end is fitted with an upper cover along the insertion direction; the front end of the upper cover is a second insertion part, which is provided with a first insertion groove for the first insertion part to be inserted; the front end of the lower cover is disposed in the second insertion groove adapted to the second insertion part; the first conductive element is disposed in the lower cover, and the first insertion part is placed in the second insertion groove; the second conductive element is disposed in the upper cover, and the clamp is placed in the first insertion groove.

[0014] Furthermore, the upper and lower walls of the front end of the second insertion slot are provided with guide protrusions to form a guide opening.

[0015] Furthermore, the main body is provided with a cage-type spring sheet, which includes a support part, a spring bow part connected to one end of the support part, and a frame part connected to the other end of the support part. The frame part is fastened to the conductive part of the conductive component.

[0016] Furthermore, the main body may also be provided with a button that can be flipped over; one end of the button is placed outside the main body to form an operating part, and the other end is placed inside the main body and two operating parts are arranged side by side to act on both sides of the spring bow; a space for inserting a wire is formed between the two operating parts.

[0017] Furthermore, the lower end of the lower cover is provided with a first snap-fit ​​portion, and the first snap-fit ​​portion is provided with a through groove along the insertion direction; the lower end of the upper cover is provided with an elastic arm, and the front end of the arm is provided with a second snap-fit ​​portion; the second snap-fit ​​portion can pass through the through groove and thus snap onto the end face of the first snap-fit ​​portion; the lower end of the lower cover is also provided with a second limiting portion, which is placed behind the first snap-fit ​​portion, and the front end of the second limiting portion is provided with a clearance area.

[0018] By adopting the above technical solution, the present invention can achieve the following technical effects:

[0019] 1. The second conductive element has an upper and lower clamping opening, which forms a clamping contact with the first conductive element after the male and female ends are connected, ensuring the reliability of conductivity;

[0020] 2. The button design ensures that the wires can be retracted, making wiring easy and maintenance convenient. It is also compatible with single-core or multi-core wires.

[0021] 3. The male and female terminals self-lock after insertion and can be unlocked and separated by pressing, making them flexible for various applications. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is an exploded structural diagram of a plug-in connector for convenient field wiring according to an embodiment of the present invention;

[0024] Figure 2 This is a schematic cross-sectional view of a plug-in connector for convenient field wiring according to an embodiment of the present invention. Figure 1 ;

[0025] Figure 3 This is a schematic diagram of the male end cross-sectional structure of a plug-in connector for convenient field wiring according to an embodiment of the present invention;

[0026] Figure 4 This is an exploded structural diagram of the male terminal of a plug-in connector for convenient field wiring according to an embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the assembly structure of the first conductive component and the cage spring in the male terminal;

[0028] Figure 6 This is a schematic diagram of the structure of the first conductive component;

[0029] Figure 7 This is a side view of the first conductive component;

[0030] Figure 8 This is an exploded structural diagram of the female end of a plug-in connector for convenient field wiring according to an embodiment of the present invention;

[0031] Figure 9 This is a schematic diagram of the female end cross-sectional structure of a plug-in connector for convenient field wiring according to an embodiment of the present invention;

[0032] Figure 10This is a schematic diagram of the assembly structure of the second conductive component and the cage spring sheet in the mother end;

[0033] Figure 11 This is a schematic diagram of the structure of the second conductive component;

[0034] Figure 12 This is a side view of the second conductive component;

[0035] Figure 13 This is a schematic diagram of the cage-type spring sheet;

[0036] Figure 14 This is a schematic diagram of the cross-sectional structure of the lower cover of the male end;

[0037] Figure 15 This is a schematic diagram of the lower cover structure of the male end;

[0038] Figure 16 This is a schematic diagram of the cross-sectional structure of the top cover of the mother end;

[0039] Figure 17 This is a schematic cross-sectional view of a plug-in connector for convenient field wiring according to an embodiment of the present invention. Figure 2 ;

[0040] Icons: Male end 1, Female end 2, First conductive element 3, Second conductive element 4, First plug-in part 5, Conductive part 6, Protrusion 7, Upper clamp 8, Lower clamp 9, Clamp part 10, Clamping opening 11, First limiting part 12, First guide slope 13, Extension part 14, Main body 15, Lower cover 16, Upper cover 17, Second plug-in part 18, First plug-in groove 19, Second plug-in groove 20, Limiting hole 21, Guide opening 22, Cage spring plate 23, Support part 24, Spring bow part 25, Frame part 26, Groove 27, Button 28, First snap-fit ​​part 29, Through groove 30, Elastic arm 31, Second snap-fit ​​part 32, Second guide slope 33, Snap-fit ​​surface 34, Second limiting part 35, Avoidance area 36. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to represent selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Example

[0043] Combination Figures 1 to 17 As shown, this embodiment provides a convenient field-wiring plug-in connector, including a male terminal 1 with a first conductive element 3 and a female terminal 2 with a second conductive element 4.

[0044] The first conductive element 3 includes a first plug-in portion 5; the second conductive element 4 includes an upper clamping piece 8, the side of the front end of the upper clamping piece 8 is bent downward to form a lower clamping piece 9; a clamping opening 11 is formed between the upper clamping piece 8 and the lower clamping piece 9 for the first plug-in portion 5 to be inserted, which can elastically clamp the first plug-in portion 5 after the male end 1 and the female end 2 are inserted.

[0045] Specifically, in this embodiment, such as Figures 10 to 12 As shown, the upper clamping piece 8 is provided with a guiding portion 6 for connecting with the wire; two protrusions 7 are spaced apart on the guiding portion 6; the two protrusions 7 work together with the clamping spring to make the wire form a wave shape, forming a more secure snap-fit. The front side is bent downward to form the lower clamping piece 9, and the front ends of the upper clamping piece 8 and the lower clamping piece 9 are C-shaped clamping portions 10, which are arranged back to back to form an elastic clamping opening 11, the distance between the clamping openings 11 being less than the thickness of the insertion part. The rear end of the lower clamping piece 9 is also bent upward to form a limiting portion to limit the insertion direction of the insertion part.

[0046] like Figures 5 to 7 As shown, the first conductive element 3 also includes a conductive portion 6 for connecting with a wire and a first insertion portion 5 connected to the conductive portion 6. Two protrusions 7 are spaced apart on the conductive portion 6; the two protrusions 7 work together with the clamping spring to make the wire form a wave shape, creating a more secure connection. A first guide slope 13 is provided at the front end of the first insertion portion 5 to facilitate smooth insertion into the clamp 11. Extension portions 14 are formed outwardly on both sides of the conductive portion 6 of the first conductive element 3 and the conductive portion 6 of the upper clamp 8, respectively used to engage in the slots of the lower cover 16 and the upper cover 17 to limit the conductive element's position.

[0047] The second conductive element 4 has an upper and lower clamping opening 11, which forms a clamping contact with the first conductive element 3 after the male end 1 and the female end 2 are connected, ensuring the reliability of conductivity.

[0048] In this embodiment, as Figure 4 and Figure 8 ,as well as Figures 14 to 16As shown, both the male end 1 and the female end 2 include a main body 15; a lower cover 16 is snapped onto the main body 15 of the male end 1 along the insertion direction, and an upper cover 17 is snapped onto the main body 15 of the female end 2 along the insertion direction; the front end of the upper cover 17 is a second insertion part 18, which has a first insertion groove 19 for the first insertion part 5 to be inserted into; the front end of the lower cover 16 has a second insertion groove 20 adapted to the second insertion part 18, and a limiting hole 21 for the first insertion part 5 to pass through is provided in the second insertion groove 20; the first conductive element 3 is disposed in the lower cover 16, and the first insertion part 5 passes through the limiting hole 21 and is placed in the second insertion groove 20; the second conductive element 4 is disposed in the upper cover 17, and the clamp 11 is placed in the first insertion groove 19. The setting of the insertion part and the insertion groove can guide and limit the insertion of the male end 1 and the female end 2, and also avoid the conductive element being exposed.

[0049] The upper and lower walls of the front end of the second insertion slot 20 are provided with guide protrusions to form a guide opening 22, and the front end of the guide opening 22 is provided with a guide surface so that the first insertion part 5 can be accurately inserted into the clamp 11 to form a stable electrical conduction.

[0050] like Figure 13 As shown, in this embodiment, a cage-type spring sheet 23 is provided inside the main body 15, which includes a support portion 24, a spring bow portion 25 connected to one end of the support portion 24, and a frame portion 26 connected to the other end of the support portion 24. The frame portion 26 is fastened to the conductive part 6 of the conductive component; grooves 27 are provided on both sides of the spring bow portion 25. Figure 2 , Figure 3 and Figure 9 As shown, a button 28 is also rotatably mounted on the main body 15; one end of the button 28 is located outside the main body 15 to form an operating part, and the other end is located inside the main body 15 with two acting parts on both sides of the spring bow 25, the ends of which act on the groove 27; a space for wire insertion is formed between the two acting parts. By applying external force to the operating part of the button 28, the button 28 is rotated, so that the acting part can apply pressure to the spring bow 25, thereby causing the spring bow 25 to elastically rotate downward to release the locking of the wire, thus allowing the wire to be removed. The button 28 avoids the influence of the elasticity of the spring bow 25 on the multi-core wire, allowing the multi-core wire to be easily plugged in.

[0051] In this embodiment, the lower end of the lower cover 16 is provided with a first latching portion 29, and the first latching portion 29 is provided with a through groove 30 along the insertion direction; the lower end of the upper cover 17 is provided with an elastic arm 31, and the front end of the elastic arm 31 is provided with a second latching portion 32; the second latching portion 32 can pass through the through groove 30 and then latch onto the end face of the first latching portion 29. Specifically, the second latching portion 32 is provided on the lower wall of the front end of the elastic arm 31, and has a second guide slope 33 and a latching surface 34; when the male end 1 and the female end 2 are inserted, the elastic arm 31 is inserted into the through groove 30, and under the action of the guide slope, the elastic arm 31 undergoes elastic deformation upward until the second latching portion 32 completely passes through the through groove 30. At this time, the elastic arm 31 springs back to the initial state, and the latching surface 34 latches onto the end face of the first latching portion 29, realizing self-locking after the male end 1 and the female end 2 are inserted. When unlocking is required, simply press the second latching part 32 to deform the elastic arm 31 upwards so that the latching surface 34 disengages from the end face of the first latching part 29 to separate the male end 1 and the female end 2.

[0052] Figures 14 to 17 As shown, the lower end of the lower cover 16 is also provided with a limiting part, which is placed after the first latching part 29. The front end of the limiting part is provided with an inclined surface to form a clearance area 36. After the male end 1 and the female end 2 are inserted, the limiting part is placed above the second latching part 32, which limits the second latching part 32 to prevent the elastic arm 31 from easily deforming and causing the second latching part 32 to easily detach from the first latching part 29. The setting of the clearance area 36 allows the second latching part 32 to make way for the elastic arm 31 after being pressed by external force, so that the latching surface 34 can detach from the first latching part 29.

[0053] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions that fall within the scope of the present invention are within the scope of protection of the present invention.

[0054] In the description of this invention, 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., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0055] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0056] In this invention, unless otherwise explicitly 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 part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0057] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the 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" the 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.

Claims

1. A field-connection plug-in connector, comprising a male terminal (1) provided with a first conductive element (3) and a female terminal (2) provided with a second conductive element (4), characterized in that: The first conductive element (3) includes a first plug-in portion (5); the second conductive element (4) includes an upper clamp (8), the side of the front end of the upper clamp (8) is bent downward to form a lower clamp (9); a clamping opening (11) is formed between the upper clamp (8) and the lower clamp (9) for the first plug-in portion (5) to be inserted, which can elastically clamp the first plug-in portion (5) after the male end (1) and the female end (2) are inserted together.

2. The convenient field wiring plug-in connector according to claim 1, characterized in that, The front ends of the upper clip (8) and the lower clip (9) are C-shaped clip portions (10), which are arranged back to back to form the clamping opening (11).

3. The convenient field wiring plug-in connector according to claim 1 or 2, characterized in that, The front end of the first plug-in part (5) is provided with a first guide slope (13).

4. The convenient field wiring plug-in connector according to claim 1, characterized in that, The rear end of the lower clip (9) is also bent upward to form a first limiting part (12).

5. The field-connection plug-in connector according to claim 1, characterized in that, Both the first conductive element (3) and the upper clamp (8) are provided with a connecting part (6) for connecting with the wire; the connecting part (6) is provided with two protrusions (7) at intervals; the two protrusions (7) work together with the clamping spring to make the wire form a wave shape.

6. The convenient field wiring plug-in connector according to claim 1, characterized in that, Both the male end (1) and the female end (2) include a main body (15); the main body (15) of the male end (1) is fitted with a lower cover (16) along the insertion direction, and the main body (15) of the female end (2) is fitted with an upper cover (17) along the insertion direction; the front end of the upper cover (17) is a second insertion part (18), which is provided with a first insertion groove (19) for the first insertion part (5) to be inserted; the front end of the lower cover (16) is provided in a second insertion groove (20) that is adapted to the second insertion part (18); the first conductive element (3) is provided in the lower cover (16), and the first insertion part (5) is placed in the second insertion groove (20); the second conductive element (4) is provided in the upper cover (17), and the clamp (11) is placed in the first insertion groove (19).

7. The field-connection plug-in connector according to claim 6, characterized in that, The front end of the second insertion groove (20) has guide protrusions on the upper and lower walls to form a guide opening (22).

8. The field-connection plug-in connector according to claim 6, characterized in that, The main body (15) is provided with a cage-type spring sheet (23), which includes a support part (24), a spring bow part (25) connected to one end of the support part (24), and a frame part (26) connected to the other end of the support part (24). The frame part (26) is fastened to the conductive part (6) of the conductive component.

9. The convenient field wiring plug-in connector according to claim 8, characterized in that, A button (28) may also be flipped on the main body (15); one end of the button is placed outside the main body (15) to form an operating part, and the other end is placed inside the main body (15) and two operating parts are arranged side by side to act on both sides of the spring bow (25); a space for wire insertion is formed between the two operating parts.

10. The field-connection plug-in connector according to claim 6, characterized in that, The lower end of the lower cover (16) is provided with a first snap-fit ​​part (29), and the first snap-fit ​​part (29) is provided with a through groove (30) along the insertion direction; the lower end of the upper cover (17) is provided with an elastic arm (31), and the front end of the upper cover (17) is provided with a second snap-fit ​​part (32); the second snap-fit ​​part (32) can pass through the through groove (30) and then snap onto the end face of the first snap-fit ​​part (29); the lower end of the lower cover (16) is also provided with a second limiting part (35), which is placed behind the first snap-fit ​​part (29); the front end of the second limiting part (35) is provided with a clearance area (36).

Images