Wiring terminal

Abstract

According to the wiring terminal disclosed by the utility model, a first buckling part is arranged on the side wall of a plug shell, a second buckling part is correspondingly arranged on a cover body of a socket assembly, and after the first buckling part and the second buckling part are buckled and connected, the connection between the plug assembly and the socket assembly is firm; the problem that a plug of an existing wiring terminal is prone to falling off is effectively solved, the connection stability of the wiring terminal in the using process is greatly improved, the reliability of electrical connection is ensured, faults such as connection interruption or poor contact caused by loosening of the plug are avoided, and normal operation of related equipment is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and more specifically, to a terminal block. Background Technology

[0002] As a core component for signal transmission and power connection in electronic equipment, the structural design and reliability of through-wall pluggable terminal blocks directly determine the operational stability and long-term performance of the entire device. In fields such as industrial automation, communication equipment, and new energy, these terminals must maintain stable electrical contact and mechanical locking capabilities under high-density installation, frequent plugging and unplugging, and complex operating conditions. This places stringent requirements on the product's anti-misinsertion (foolproofing), space utilization, and plugging reliability.

[0003] Currently, most through-wall pluggable terminal blocks have a single-layer pluggable structure, and the unlocking methods vary. The common unlocking method is to achieve plug-in fixation through the interference fit of internal metal terminals. Tests have shown that after installation, this method often causes the plug to fall off, resulting in unstable connections and a lack of good foolproof function. Furthermore, single-layer terminal blocks have low space utilization for products with multiple connection requirements. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model provides a terminal block to solve the problem that the plug of the existing terminal block is easy to fall off, resulting in unstable connection.

[0005] The technical solution of this utility model is as follows: A terminal block includes a socket assembly and a plug assembly plugged into the socket assembly. The socket assembly includes a male pin unit and a cover, and the male pin unit and the cover are detachably connected. The plug assembly includes a plug housing, a first fastener is installed on the side wall of the plug housing, and a second fastener is correspondingly provided on the cover. The first fastener and the second fastener are fastened together.

[0006] Furthermore, a guide protrusion is provided on the side wall of the plug housing, and a guide groove extending along its length is formed in the guide protrusion. A protruding locking protrusion is formed on the side of the first buckle facing the guide protrusion. The shape of the locking protrusion is adapted to the shape of the cavity of the guide groove. The locking protrusion is embedded in the guide groove and can slide along the length of the guide groove. The first buckle is engaged or disengaged with the second buckle through the sliding displacement of the locking protrusion in the guide groove.

[0007] Furthermore, the first buckle is provided with a locking block at its end, the locking block having an inclined surface that tapers in the insertion direction, the second buckle is provided with a corresponding slot, and the inner wall of the second buckle is formed with a mating inclined surface that makes surface contact with the inclined surface. The inclined surface of the locking block and the mating inclined surface of the second buckle cooperate to make the locking block embedded in the slot.

[0008] Furthermore, the male pin unit includes multiple male pin housings arranged side by side. One end of each male pin housing is provided with two first wiring ports distributed vertically. Each male pin housing is provided with two male pin groups corresponding to the two first wiring ports. Each male pin group includes a first latch, a first spring, and a male pin. The first latch is connected to the first spring. When the first latch is opened, the lower end of the first spring is lifted to separate the first spring and the male pin. A copper wire insertion channel is formed between the first spring and the male pin.

[0009] Furthermore, one end of the cover is provided with a plurality of first locking blocks arranged side by side, and one end of the male pin unit is provided with a plurality of second locking blocks arranged side by side. A gap is formed between two adjacent second locking blocks for the insertion of the first locking block. The first locking block is provided with a notch, and at least a portion of the second locking block is embedded in the notch to achieve locking.

[0010] Furthermore, the plug housing is equipped with multiple female pin groups, and the multiple female pin groups and the multiple male pin groups are arranged in a one-to-one correspondence.

[0011] Furthermore, one end of the plug housing is provided with multiple second wiring ports, and the multiple second wiring ports and the multiple female pin groups are arranged in a one-to-one correspondence.

[0012] Furthermore, the female needle assembly includes a second latch, a second spring, and a female needle. When the second latch is opened, the lower end of the second spring is lifted to separate the second spring from the female needle, and a copper wire insertion channel is formed between the second spring and the female needle.

[0013] Furthermore, the female needle assembly also includes a fastener. The female needle includes a female needle body, a first clamping part, and a second clamping part. The fastener is sleeved on the first clamping part and the second clamping part so that the first clamping part and the second clamping part cooperate to clamp the male needle.

[0014] Furthermore, the main body of the needle, the first clamping part, and the second clamping part are an integral structure.

[0015] The advantages of this utility model based on the above solution are as follows:

[0016] The present invention provides a terminal block that, by installing a first latch on the side wall of the plug housing and a corresponding second latch on the cover of the socket assembly, securely connects the plug assembly and the socket assembly after the first and second latches are engaged. This effectively solves the problem of existing terminal block plugs easily falling off, greatly improves the connection stability of the terminal block during use, ensures the reliability of the electrical connection, avoids connection interruptions or poor contact caused by loose plugs, and guarantees the normal operation of related equipment.

[0017] This utility model provides a terminal block with a detachable connection between the male pin unit and the cover, making it convenient and quick to install or replace the male pin unit without replacing the entire socket assembly or performing complex operations, thus reducing maintenance and time costs. Furthermore, when inserting the plug assembly, the snap-fit ​​connection between the first and second snap-fit ​​parts is simple and easy to perform; simply align the plug assembly with the socket assembly and insert it with slight force to snap the first and second snap-fit ​​parts into place to complete the connection. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the wiring terminal in an embodiment of the present utility model;

[0020] Figure 2 This is an exploded view of the socket assembly in an embodiment of the present utility model;

[0021] Figure 3 This is an exploded view of the terminal block structure in an embodiment of the present utility model;

[0022] Figure 4 This is one of the structural schematic diagrams of the cover in the embodiments of this utility model;

[0023] Figure 5 This is the second schematic diagram of the structure of the cover in this utility model embodiment;

[0024] Figure 6 This is one of the structural schematic diagrams of the plug shell in the embodiments of this utility model;

[0025] Figure 7 This is a second schematic diagram of the structure of the plug shell in this embodiment of the present utility model;

[0026] Figure 8This is one of the internal structural diagrams of the socket assembly in the embodiments of this utility model;

[0027] Figure 9 This is a second schematic diagram of the internal structure of the socket assembly in an embodiment of this utility model;

[0028] Figure 10 This is one of the internal structural diagrams of the plug assembly in an embodiment of the present utility model;

[0029] Figure 11 This is a second schematic diagram of the internal structure of the plug assembly in an embodiment of the present utility model;

[0030] Figure 12 This is a schematic diagram showing the connection between the male and female needle sets.

[0031] In the diagram, 1. Socket assembly; 11. Male pin unit; 111. Male pin housing; 1111. First connector; 112. Second locking block; 12. Cover; 121. Second buckle; 1211. Buckle; 1212. Mating bevel; 122. First locking block; 1221. Notch; 13. Male pin assembly; 131. First latch; 132. First spring; 133. Male pin; 2. Plug assembly; 21. Plug housing; 211. Guide protrusion; 2111. Guide groove; 212. Second connector; 22. First latch; 221. Locking protrusion; 222. Locking block; 2221. Inclined surface; 23. Female pin assembly; 231. Second latch; 232. Second spring; 233. Female pin; 2331. Female pin body; 2332. First clamping part; 2333. Second clamping part; 234. Fastener. Detailed Implementation

[0032] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of the present invention by way of example, but should not be used to limit the scope of the present invention, that is, the present invention is not limited to the described embodiments.

[0033] To better understand this utility model, the following description, in conjunction with the accompanying drawings and embodiments, will further illustrate the present utility model:

[0034] Referring to Figure 1, an embodiment of the present invention provides a terminal block including a socket assembly 1 and a plug assembly 2 plugged into the socket assembly 1. The socket assembly 1 includes a male pin unit 11 and a cover 12, which are detachably connected. The plug assembly 2 includes a plug housing 21, a first fastening part 22 is installed on the side wall of the plug housing 21, and a second fastening part 121 is correspondingly provided on the cover 12. The first fastening part 22 and the second fastening part 121 are fastened together.

[0035] Specifically, by installing a first buckle 22 on the side wall of the plug housing 21 and correspondingly providing a second buckle 121 on the cover 12 of the socket assembly 1, the first buckle 22 and the second buckle 121 are fastened together, making the connection between the plug assembly 2 and the socket assembly 1 firm. This effectively solves the problem that the plugs of existing terminal blocks are easy to fall off, greatly improves the connection stability of the terminal blocks during use, ensures the reliability of electrical connections, avoids connection interruptions or poor contact caused by loose plugs, and ensures the normal operation of related equipment.

[0036] See Figure 2 As shown, the male pin unit 11 and the cover 12 are detachably connected. This design makes it convenient and quick to install or replace the male pin unit 11 without replacing the entire socket assembly 1 or performing complex operations, thus reducing maintenance and time costs. Meanwhile, when plugging in the plug assembly 2, the engagement of the first latch 22 and the second latch 121 is simple and easy. Simply align the plug assembly 2 with the socket assembly 1 and insert it with slight force to engage the first latch 22 and the second latch 121 to complete the connection.

[0037] See Figure 6 and Figure 7 As shown, a guide protrusion 211 is provided on the side wall of the plug housing 21. The guide protrusion 211 and the plug housing 21 are made by an integral molding process. The integral molding technology (such as injection molding, die casting, etc.) makes the guide protrusion 211 and the plug housing 21 a whole structure without seams or welding points, thereby improving the connection between the guide protrusion 211 and the plug housing 21.

[0038] Specifically, guide protrusions 211 are symmetrically distributed on the outer surfaces of both sides of the plug housing 21. A guide groove 2111 extending along its length is formed in the guide protrusion 211. A protruding latch 221 is formed on the side of the first latch 22 facing the guide protrusion 211. The shape of the latch 221 is adapted to the shape of the cavity of the guide groove 2111. The latch 221 is embedded in the guide groove 2111 and can slide along the length of the guide groove 2111. The first latch 22 achieves the latching connection or separation with the second latch 121 through the sliding displacement of the latch 221 in the guide groove 2111.

[0039] See Figures 3-7 As shown, the end of the first buckle 22 is provided with a locking block 222. The locking block 222 has an inclined surface 2221 that gradually narrows along the insertion direction. The second buckle 121 is provided with a corresponding slot 1211. The inner wall of the second buckle 121 is formed with a mating inclined surface 1212 that makes surface contact with the inclined surface 2221. The inclined surface 2221 of the locking block 222 and the mating inclined surface 1212 of the second buckle 121 cooperate to make the locking block 222 embedded in the slot 1211.

[0040] To further explain, this embodiment also provides the connection principle of the socket assembly 1 and the plug assembly 2, as follows:

[0041] 1. Fastening process

[0042] The latching protrusion 221 of the first latching part 22 and the guide groove 2111 of the guide protrusion 211 are aligned. Force is applied along the insertion direction of the plug assembly 2, and the latching protrusion 221 of the first latching part 22 is embedded in the guide groove 2111. The first latching part 22 continues to move horizontally along the extension direction of the guide groove 2111. The guide groove 2111 restricts the longitudinal offset of the first latching part 22, ensuring that the first latching part 22 and the second latching part 121 are accurately aligned. When the stroke ends, under the cooperation of the inclined surface 2221 and the mating inclined surface 1212, the locking block 222 of the first latching part 22 is embedded in the slot 1211 of the second latching part 121, completing the self-locking.

[0043] 2. Separation operation

[0044] Pressing the first buckle 22 releases the locking block 222 of the first buckle 22 from the latch 1211 of the second buckle 121. Sliding the first buckle 22 in the opposite direction causes the locking block 222 to exit from the latch 1211, thus separating the first buckle 22 from the second buckle 121.

[0045] See Figure 8 and Figure 9 As shown, the male pin unit 11 includes multiple male pin housings 111 arranged side by side. One end of each male pin housing 111 has two first wiring ports 1111 distributed vertically. Each male pin housing 111 has two male pin groups 13 corresponding to the two first wiring ports 1111. Each male pin group 13 includes a first latch 131, a first spring 132, and a male pin 133. The first latch 131 is connected to the first spring 132. When the first latch 131 is opened, the lower end of the first spring 132 is lifted to separate the first spring 132 from the male pin 133. A copper wire insertion channel is formed between the first spring 132 and the male pin 133, allowing the first wiring port 1111 to release space. After inserting the copper wire, the first latch 131 is released, and then the first spring 132 clamps the copper wire.

[0046] See Figure 3 and Figure 5As shown, one end of the cover 12 is provided with a plurality of first locking blocks 122 arranged side by side. Each first locking block 122 is designed with a notch 1221 of a specific shape (a groove or recessed area). One end of the male pin unit 11 is provided with a plurality of second locking blocks 112 arranged side by side. The second locking blocks 112 have a fitting part that is complementary to the shape of the notch 1221. A gap is formed between two adjacent second locking blocks 112 for the insertion of the first locking block 122. The first locking block 122 is provided with a notch 1221. The fitting part of the second locking block 112 is fitted into the notch 1221 to achieve a locking connection.

[0047] Specifically, multiple first locking blocks 122 of the cover 12 are inserted through the gap, and then after moving horizontally a predetermined distance within the gap, the fitting part of the second locking block 112 is fitted into the notch 1221 to achieve locking.

[0048] See Figure 10 and Figure 12 As shown, the plug housing 21 is equipped with multiple female pin groups 23, and the multiple female pin groups 23 and multiple male pin groups 13 are arranged in a one-to-one correspondence.

[0049] Specifically, one end of the plug housing 21 is provided with multiple second wiring ports 212, and the multiple second wiring ports 212 and multiple female pin groups 23 are arranged one-to-one. The female pin group 23 includes a second latch 231, a second spring 232 and a female pin 233. When the second latch 231 is opened, the lower end of the second spring 232 is lifted to separate the second spring 232 and the female pin 233. A copper wire insertion channel is formed between the second spring 232 and the female pin 233, which releases space in the second wiring port 212. After the copper wire is inserted, the second latch 231 is released, and then the second spring 232 locks the copper wire.

[0050] In this embodiment, the female needle assembly 23 further includes a fastener 234. The female needle 233 includes a female needle body 2331, a first clamping part 2332 and a second clamping part 2333. The female needle body 2331, the first clamping part 2332 and the second clamping part 2333 are an integral structure. The fastener 234 is sleeved on the first clamping part 2332 and the second clamping part 2333 so that the first clamping part 2332 and the second clamping part 2333 cooperate to clamp the male needle 133.

[0051] It should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product is usually placed in during use, or the orientation or positional relationship that is commonly understood by those skilled in the art, or the orientation or positional relationship that the product is usually placed in during use. It is only for the purpose of facilitating the description of this application and simplifying the description, and is not intended to 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, it should not be construed as a limitation of this application.

[0052] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

[0053] The present utility model patent has been described above with reference to the accompanying drawings. Obviously, the implementation of the present utility model patent is not limited to the above-described manner. Any improvements made by adopting the inventive concept and technical solution of the present utility model patent, or the direct application of the inventive concept and technical solution of the present utility model patent to other occasions without modification, are all within the protection scope of the present utility model.

Claims

1. A terminal block comprising a socket assembly (1) and a plug assembly (2) inserted into the socket assembly (1), characterized in that: The socket assembly (1) includes a male pin unit (11) and a cover (12), the male pin unit (11) and the cover (12) being detachably connected; the plug assembly (2) includes a plug housing (21), a first buckle (22) is installed on the side wall of the plug housing (21), and a second buckle (121) is correspondingly provided on the cover (12), the first buckle (22) and the second buckle (121) being fastened together.

2. A terminal block as described in claim 1, characterized in that: A guide protrusion (211) is provided on the side wall of the plug housing (21). A guide groove (2111) extending along its length direction is formed in the guide protrusion (2111). A protruding locking protrusion (221) is formed on the side of the first buckle (22) facing the guide protrusion (211). The shape of the locking protrusion (221) is adapted to the cavity shape of the guide groove (2111). The locking protrusion (221) is embedded in the guide groove (2111) and can slide along the length direction of the guide groove (2111). The first buckle (22) achieves the buckling connection or separation with the second buckle (121) through the sliding displacement of the locking protrusion (221) in the guide groove (2111).

3. A terminal block as described in claim 2, characterized in that: The first buckle (22) has a locking block (222) at its end. The locking block (222) has an inclined surface (2221) that tapers in the insertion direction. The second buckle (121) has a corresponding slot (1211). The inner wall of the second buckle (121) has a mating inclined surface (1212) that makes surface contact with the inclined surface (2221). The inclined surface (2221) of the locking block (222) and the mating inclined surface (1212) of the second buckle (121) cooperate to make the locking block (222) fit into the slot (1211).

4. A terminal block as described in claim 2, characterized in that: The male needle unit (11) includes multiple male needle shells (111) arranged side by side. One end of each male needle shell (111) is provided with two first wiring ports (1111) distributed vertically. Each male needle shell (111) is provided with two male needle groups (13) and corresponds to the two first wiring ports (1111). Each male needle group (13) includes a first latch (131), a first spring (132) and a male needle (133). The first latch (131) is connected to the first spring (132). When the first latch (131) is opened, the lower end of the first spring (132) is lifted to separate the first spring (132) and the male needle (133). A copper wire insertion channel is formed between the first spring (132) and the male needle (133).

5. A terminal block as described in claim 1, characterized in that: The cover (12) has a plurality of first locking blocks (122) arranged side by side at one end, and the male pin unit (11) has a plurality of second locking blocks (112) arranged side by side at one end. A gap is formed between two adjacent second locking blocks (112) for the insertion of the first locking block (122). The first locking block (122) has a notch (1221). At least a portion of the second locking block (112) is embedded in the notch (1221) to achieve locking.

6. A terminal block as described in claim 4, characterized in that: The plug housing (21) is equipped with a plurality of female pin groups (23), and the plurality of female pin groups (23) and the plurality of male pin groups (13) are arranged in a one-to-one correspondence.

7. A terminal block as described in claim 6, characterized in that: The plug housing (21) has a plurality of second wiring ports (212) at one end, and the plurality of second wiring ports (212) and the plurality of female pin groups (23) are arranged in a one-to-one correspondence.

8. A terminal block as described in claim 6, characterized in that: The female needle assembly (23) includes a second latch (231), a second spring (232), and a female needle (233). When the second latch (231) is opened, the lower end of the second spring (232) is lifted to separate the second spring (232) and the female needle (233). A copper wire insertion channel is formed between the second spring (232) and the female needle (233).

9. A terminal block as described in claim 8, characterized in that: The female needle assembly (23) further includes a fastener (234). The female needle (233) includes a female needle body (2331), a first clamping part (2332), and a second clamping part (2333). The fastener (234) is sleeved on the first clamping part (2332) and the second clamping part (2333) so that the first clamping part (2332) and the second clamping part (2333) cooperate to clamp the male needle (133).

10. A terminal block as described in claim 9, characterized in that: The main body of the needle (2331), the first clamping part (2332) and the second clamping part (2333) are an integral structure.

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