Small wiring terminal

Abstract

The utility model relates to the technical field of wiring terminals, in particular to a small wiring terminal, which comprises an insulating main body, a metal connecting sheet and a pressing piece, an accommodating cavity is arranged in the insulating main body, the metal connecting sheet comprises an opening and closing part, a bending part and a connecting part which are connected in sequence, the pressing piece is connected with the opening and closing part, a positioning block is arranged in the accommodating cavity, and the pressing piece is connected with the opening and closing part. A first limiting groove is formed between the positioning block and the inner wall of the containing cavity, a second limiting groove is formed in the lower end of the insulating body, the bending part is located in the first limiting groove, and the connecting part is located in the second limiting groove. When the pressing piece is pressed down, the opening and closing part is opened, an electric wire can be inserted from the insertion hole, when the pressing piece is loosened, the opening and closing part rebounds and clamps the electric wire, meanwhile, the bending part and the connecting part can be effectively limited through the first limiting groove and the second limiting groove, the insertion stability can be ensured in the small-size containing cavity, and the insertion efficiency is improved. The plug-in connector is good in operation convenience and high in plug-in efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of terminal blocks, in particular to a small terminal block. Background Art

[0002] With the development of electronic devices towards smaller, lighter and more portable directions, the demand for small terminal blocks used to connect circuit boards and other electrical components is increasing day by day. Most of the common small terminal blocks on the market currently use the cooperation of screw holes and studs to fix wires, that is, the wires are inserted into the insertion holes of the terminal block from the side, and the studs at the top are used to lock the wires to ensure stable electrical connection. Although this design can provide reliable connection, there are some obvious disadvantages in the actual application process. First of all, due to the small size of the studs, operators need high precision and patience when tightening the screws, which will greatly reduce work efficiency. Secondly, the traditional cooperation method of screw holes and studs requires tightening the screws manually one by one, which is a time-consuming process and not suitable for quick installation scenarios. And if the studs are not locked correctly, it may lead to poor contact or looseness, thus affecting the performance and safety of the entire electrical system.

[0003] In view of the above problems, there is still room for improvement in the operation convenience and insertion efficiency of small terminal blocks in the prior art. Summary of the Utility Model

[0004] The utility model aims to solve at least the technical problems existing in the prior art. For this purpose, the utility model provides a small terminal block. Pressing the pressing member can open the insertion hole for insertion, with good operation convenience, high insertion efficiency, and high overall structural stability.

[0005] According to some embodiments of the utility model, a small terminal block includes an insulating body, a metal connecting piece and a pressing member. A receiving cavity is provided in the insulating body. A guiding groove and a through hole are respectively formed at the upper and lower ends of the receiving cavity. The lower end of the pressing member passes through the guiding groove. The metal connecting piece is arranged in the receiving cavity. The metal connecting piece includes an opening and closing part, a bending part and a connecting part which are connected in sequence. The pressing member is connected to the opening and closing part. An insertion hole is arranged on the outer side of the insulating body and is located on the outer side of the opening and closing part. A positioning block is arranged in the receiving cavity. A first limiting groove is arranged between the positioning block and the inner wall of the receiving cavity. A second limiting groove is arranged at the lower end of the insulating body. The first limiting groove, the second limiting groove and the through hole are communicated in sequence. The bending part is located in the first limiting groove. The connecting part is located in the second limiting groove. A pin is arranged at the bottom of the connecting part, and the pin passes through the through hole.

[0006] A small-sized terminal according to some embodiments of the present utility model has at least the following beneficial effects:

[0007] In the present utility model, guiding grooves and through holes are respectively formed at the upper and lower ends of the accommodating cavity. The lower end of the pressing member penetrates through the guiding groove, and the metal connecting piece is arranged in the accommodating cavity. The metal connecting piece includes an opening and closing portion, a bending portion, and a connecting portion that are connected in sequence. The pressing member is connected to the opening and closing portion. A plugging hole is arranged on the outer side of the insulating main body, and the plugging hole is located on the outer side of the opening and closing portion. When the pressing member is pressed down, the opening and closing portion deforms downward, and the opening and closing portion opens from the plugging hole. At this time, a wire can be inserted into the plugging hole. When the pressing member is released, the opening and closing portion rebounds and will clamp the wire. At the same time, through the first limiting groove and the second limiting groove, the bending portion and the connecting portion of the metal connecting piece can be effectively limited, and the stability of plugging can be ensured in a small-sized accommodating cavity. The present utility model has good operation convenience, high plugging efficiency, and high overall structural stability.

[0008] For the small-sized terminal according to some embodiments of the present utility model, a butting portion is arranged at the bottom of the pressing member, a hanging hole is formed in the middle of the butting portion, a plug tongue is arranged at the end of the opening and closing portion, a notch is arranged on the inner side of the plug tongue, the plug tongue extends into the hanging hole, and one end of the butting portion extends into the notch.

[0009] For the small-sized terminal according to some embodiments of the present utility model, the through hole is arranged in the middle of the second limiting groove, the plug pin is arranged in the middle of the connecting portion, and the plug pin is formed by bending the metal connecting piece.

[0010] For the small-sized terminal according to some embodiments of the present utility model, the guiding groove is arranged on one side of the accommodating cavity.

[0011] For the small-sized terminal according to some embodiments of the present utility model, a through groove is arranged on the outer side of the top of the insulating main body, a stop plane is arranged at the top of the through groove, a stop portion protrudes outward from one side of the pressing member, and the stop portion is correspondingly arranged with the stop plane.

[0012] For the small-sized terminal according to some embodiments of the present utility model, a groove is arranged at the top of the pressing member.

[0013] For the small-sized terminal according to some embodiments of the present utility model, an inclined surface is arranged on the outer side of the insulating main body, and the plugging hole is arranged on the inclined surface.

[0014] For the small-sized terminal according to some embodiments of the present utility model, the insulating main body includes a housing and a cover plate. A plurality of positioning columns are arranged on the insulating main body, and a plurality of first positioning holes are arranged on the cover plate. The positioning columns and the first positioning holes are arranged in one-to-one correspondence.

[0015] According to some embodiments of the present utility model, a small wiring terminal is provided with a plurality of the housings, and a plurality of second positioning holes are provided on the outer side of the housing, and the second positioning holes are arranged in one-to-one correspondence with the positioning columns.

[0016] According to some embodiments of the present utility model, chamfers are provided on the outer circumferences of the guiding groove, the accommodating cavity, the first limiting groove, the second limiting groove, and the through hole.

[0017] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0018] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0019] Figure 1 is a schematic structural diagram of an embodiment of the present utility model.

[0020] Figure 2 is a schematic structural diagram of an embodiment of the present utility model after the cover plate is hidden.

[0021] Figure 3 is a schematic structural diagram of the metal connecting piece of an embodiment of the present utility model.

[0022] Figure 4 is a schematic structural diagram of the housing of an embodiment of the present utility model Figure 1 .

[0023] Figure 5 is a schematic structural diagram of the housing of an embodiment of the present utility model Figure 2 .

[0024] Figure 6 is a schematic structural diagram of some other embodiments of the present utility model.

[0025] Reference numerals: 1, insulating body; 2, metal connecting piece; 3, pressing member; 4, accommodating cavity; 5, inserting hole;

[0026] 11, through groove; 12, stopping plane; 13, inclined plane; 14, housing; 15, cover plate; 16, positioning column; 17, first positioning hole; 18, second positioning hole;

[0027] 21, opening and closing part; 22, bending part; 23, connecting part; 24, pin; 25, inserting tongue; 26, notch;

[0028] 31, abutting part; 32, hanging hole; 33, stopping part; 34, groove;

[0029] 41. Guide groove, 42. Through hole, 43. Positioning block, 44. First limiting groove, 45. Second limiting groove, 46. Chamfer Detailed implementation manner

[0030] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and should not be construed as a limitation to the present invention.

[0031] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as up, down, left, right, front, back, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the module or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0032] In the description of the present invention, if the first and second are described only for the purpose of distinguishing technical features, they should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence of the indicated technical features.

[0033] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0034] As Figures 1-6 shown, the embodiment of the present invention provides a small-sized terminal block.

[0035] A small terminal block, comprising an insulating body 1, a metal connecting piece 2 and a pressing piece 3. An accommodating cavity 4 is arranged inside the insulating body 1. A guiding groove 41 and a through hole 42 are respectively formed at the upper and lower ends of the accommodating cavity 4. The lower end of the pressing piece 3 passes through the guiding groove 41. The metal connecting piece 2 is arranged inside the accommodating cavity 4. The metal connecting piece 2 includes an opening and closing part 21, a bending part 22 and a connecting part 23 which are connected in sequence. The pressing piece 3 is connected with the opening and closing part 21. A plugging hole 5 is arranged on the outer side of the insulating body 1. The plugging hole 5 is located on the outer side of the opening and closing part 21. A positioning block 43 is arranged inside the accommodating cavity 4. A first limiting groove 44 is arranged between the positioning block 43 and the inner wall of the accommodating cavity 4. A second limiting groove 45 is arranged at the lower end of the insulating body 1. The first limiting groove 44, the second limiting groove 45 and the through hole 42 are communicated in sequence. The bending part 22 is located inside the first limiting groove 44. The connecting part 23 is located inside the second limiting groove 45. A pin 24 is arranged at the bottom of the connecting part 23. The pin 24 passes through the through hole 42.

[0036] In the utility model, the guiding groove 41 and the through hole 42 are respectively formed at the upper and lower ends of the accommodating cavity 4. The lower end of the pressing piece 3 passes through the guiding groove 41. The metal connecting piece 2 is arranged inside the accommodating cavity 4. The metal connecting piece 2 includes the opening and closing part 21, the bending part 22 and the connecting part 23 which are connected in sequence. The pressing piece 3 is connected with the opening and closing part 21. The plugging hole 5 is arranged on the outer side of the insulating body 1. The plugging hole 5 is located on the outer side of the opening and closing part 21. When the pressing piece 3 is pressed down, the opening and closing part 21 deforms downward, and the opening and closing part 21 opens from the plugging hole 5. At this time, an electric wire can be inserted through the plugging hole 5. When the pressing piece 3 is released, the opening and closing part 21 rebounds and will clamp the electric wire. At the same time, through the first limiting groove 44 and the second limiting groove 45, the bending part and the connecting part 23 of the metal connecting piece 2 can be effectively limited, and the stability of plugging can be ensured in the small-sized accommodating cavity 4. The utility model has good operation convenience, high plugging efficiency and high overall structural stability.

[0037] It can be understood that due to the small space of the accommodating cavity 4, the metal connecting piece 2 is made of a metal alloy with certain flexibility, such as beryllium copper.

[0038] A small terminal block according to this embodiment, a contact portion 31 is provided at the bottom of the pressing member 3, a hanging hole 32 is formed in the middle of the contact portion 31, a plug tongue 25 is provided at the end of the opening and closing portion 21, a notch 26 is provided inside the plug tongue 25, the plug tongue 25 extends into the hanging hole 32, and one end of the contact portion 31 extends into the notch 26. Specifically, the above settings effectively connect the opening and closing portion 21 and the pressing member 3. When the pressing member 3 is pressed, the inner wall of the top of the hanging hole 32 abuts against the top of the plug tongue 25, pushing the opening and closing portion 21 to displace downward and deform, so that external wires can be inserted from the insertion hole 5.

[0039] A small terminal block according to this embodiment, the through hole 42 is provided in the middle of the second limiting groove 45, the pin 24 is provided in the middle of the connecting portion 23, and the pin 24 is formed by bending the metal connecting piece 2. Specifically, the stability of the above structure is good.

[0040] A small terminal block according to this embodiment, the guiding groove 41 is provided on one side of the accommodating cavity 4. Specifically, the above setting enables the pressing member 3 to be pressed downward on one side of the accommodating cavity 4, without occupying the space in the central area of the accommodating cavity 4, and the wire can be smoothly inserted from the insertion hole 5 without interference with the pressing member 3.

[0041] A small terminal block according to this embodiment, a through groove 11 is provided on the outer side of the top of the insulating body 1, a stop plane 12 is provided at the top of the through groove 11, a stop portion 33 protrudes outward from one side of the pressing member 3, and the stop portion 33 is correspondingly arranged with the stop plane 12. Specifically, the through groove 11 and the stop plane 12 can limit the downward stroke of the pressing member 3. When the stop portion 33 abuts against the stop plane 12, the pressing member 3 can no longer displace downward.

[0042] A small terminal block according to this embodiment, a groove 34 is provided at the top of the pressing member 3. Specifically, the groove 34 penetrates through the side walls at both ends of the pressing member 3. Due to the small size, the above setting allows the nail to be inserted into the groove 34 for pressing, which is more convenient.

[0043] A small terminal block according to this embodiment, an inclined surface 13 is provided on the outer side of the insulating body 1, and the insertion hole 5 is provided on the inclined surface 13. Specifically, the above setting facilitates the introduction of the wire into the insertion hole 5.

[0044] A small terminal block according to this embodiment, the insulating body 1 includes a housing 14 and a cover plate 15. A plurality of positioning posts 16 are provided on the insulating body 1, and a plurality of first positioning holes 17 are provided on the cover plate 15. The positioning posts 16 and the first positioning holes 17 are arranged in one-to-one correspondence. Specifically, the above arrangement facilitates the assembly, maintenance, and replacement of each component.

[0045] A small terminal block according to this embodiment, there are a plurality of the housings 14. A plurality of second positioning holes 18 are provided on the outer side of the housing 14. The second positioning holes 18 and the positioning posts 16 are arranged in one-to-one correspondence. Specifically, according to the actual electrical connection requirements, a plurality of housings 14 can be provided, and the plurality of housings 14 are connected through the positioning posts 16 and the second positioning holes 18.

[0046] A small terminal block according to this embodiment, chamfers 46 are provided on the outer circumferences of the guiding groove 41, the accommodating cavity 4, the first limiting groove 44, the second limiting groove 45, and the through hole 42. Specifically, since the size of the insulating body 1 is small, providing the chamfers 46 can make the assembly of each component more convenient and improve the efficiency.

[0047] As Figure 1 shown, it can be understood that in some other embodiments, the aperture, shape of the insertion hole 5, and the size of the accommodating cavity 4 can be appropriately adjusted according to actual needs. Figure 6

[0048] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.​

Claims

1. A small terminal block, characterized in that: It includes an insulating body, a metal connecting piece and a pressing piece. An accommodating cavity is arranged in the insulating body. A guiding groove and a through hole are respectively formed at the upper and lower ends of the accommodating cavity. The lower end of the pressing piece penetrates through the guiding groove. The metal connecting piece is arranged in the accommodating cavity. The metal connecting piece includes an opening and closing part, a bending part and a connecting part which are connected in sequence. The pressing piece is connected with the opening and closing part. A plugging hole is arranged on the outer side of the insulating body and is located on the outer side of the opening and closing part. A positioning block is arranged in the accommodating cavity. A first limiting groove is arranged between the positioning block and the inner wall of the accommodating cavity. A second limiting groove is arranged at the lower end of the insulating body. The first limiting groove, the second limiting groove and the through hole are communicated in sequence. The bending part is located in the first limiting groove. The connecting part is located in the second limiting groove. A plug pin is arranged at the bottom of the connecting part and penetrates through the through hole.

2. The small wiring terminal according to claim 1, characterized in that: A butting part is arranged at the bottom of the pressing piece. A hanging hole is formed in the middle of the butting part. A plug tongue is arranged at the end of the opening and closing part. A notch is arranged on the inner side of the plug tongue. The plug tongue extends into the hanging hole. One end of the butting part extends into the notch.

3. A small wiring terminal according to claim 1, characterized in that: The through hole is arranged in the middle of the second limiting groove. The plug pin is arranged in the middle of the connecting part and is formed by bending the metal connecting piece.

4. A small terminal block according to claim 1, characterized in that: The guiding groove is arranged on one side of the accommodating cavity.

5. A small terminal block according to claim 1, characterized in that: A through groove is arranged on the outer side of the top of the insulating body. A stop plane is arranged at the top of the through groove. A stop part protrudes outwards from one side of the pressing piece. The stop part is arranged corresponding to the stop plane.

6. A small wiring terminal according to claim 1, characterized in that: A groove is arranged at the top of the pressing piece.

7. A small wiring terminal according to claim 1, characterized in that: An inclined surface is arranged on the outer side of the insulating body. The plugging hole is arranged on the inclined surface.

8. A small wiring terminal according to claim 1, characterized in that: The insulating body includes a shell and a cover plate. A plurality of positioning columns are arranged on the insulating body. A plurality of first positioning holes are arranged on the cover plate. The positioning columns and the first positioning holes are arranged in one-to-one correspondence.

9. The small-sized terminal block according to claim 8, wherein: A plurality of the shells are arranged. A plurality of second positioning holes are arranged on the outer side of the shell. The second positioning holes and the positioning columns are arranged in one-to-one correspondence.

10. A small terminal block according to claim 8, characterized in that: Chamfers are arranged on the outer circumferences of the guiding groove, the accommodating cavity, the first limiting groove, the second limiting groove and the through hole.

Images