Wire-to-board fence plug-in terminal
By designing a wire-to-plate grid pluggable terminal block, which combines an insulating shell and side cover with long and short guide strips and auxiliary clips, the problem of insufficient clamping force and pluggable/pull-out capability of existing terminal blocks is solved, achieving a stable connection and quick pluggable/pull-out, making it suitable for industrial applications with limited space.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SCED ELECTRONICS CO LTD
- Filing Date
- 2025-08-07
- Publication Date
- 2026-07-10
AI Technical Summary
Existing terminal block structures cannot maintain long-term clamping force and insertion/removal capability, and their assembly size is too large, failing to meet the growing demands of the usage environment.
Design a wire-to-plate grid pluggable terminal block, which is composed of an insulating shell and an insulating side cover. It adopts an "L"-shaped structure with long and short guide bars, combined with auxiliary clips and screws to form a stable connection, enhancing the clamping force and plugging and unplugging resistance.
It improves the stability of the connection and the ease of plugging and unplugging, reduces assembly time, and is suitable for wire-to-board connection scenarios with limited height space.
Smart Images
Figure CN224481245U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of terminal block technology, specifically, it relates to a wire-to-plate grid pluggable terminal block. Background Technology
[0002] There are generally three types of pluggable terminal block structures in the industry: vertical pluggable barrier terminal blocks, horizontal and vertical pluggable screw terminal blocks, and horizontal and vertical pluggable spring terminal blocks. However, these traditional terminal block structures share the problem that they cannot maintain clamping force and pluggable capability for a long time. After prolonged use, the connection strength between key components cannot be guaranteed, and the overall assembly size is too large, which cannot meet the requirements of the increasingly demanding operating environments. Utility Model Content
[0003] To address the aforementioned problems in the existing technology, the purpose of this utility model is to provide a wire-to-plate grid pluggable terminal block that offers reliable clamping and pluggable resistance, convenient assembly and positioning, and strong connection stability, thereby improving practical performance and expanding its application scope.
[0004] To solve the above problems, the technical solution adopted by this utility model is as follows:
[0005] A type of wire-to-plate grid pluggable terminal block is assembled from an insulating shell and an insulating side cover;
[0006] The insulating shell includes a hanging platform disposed in the middle of the top of the insulating shell, and through slots formed on the surface of the insulating shell. There are multiple through slots arranged in two rows at equal intervals. Long guide strips are inserted in the through slots in the upper row, and short guide strips are inserted in the through slots in the lower row.
[0007] Both the long guide bar and the short guide bar are L-shaped and each includes a connecting section, a middle section, and a welding section in sequence. The connecting section and the welding section are the straight sections on both sides of the L-shaped long guide bar / short guide bar, respectively. The middle section is an L-shaped section. The middle section of the long guide bar is larger than the middle section of the short guide bar. The connecting section passes through the through groove.
[0008] The welding section has a weld leg, the weld leg of the long guide bar is located behind the weld leg of the short guide bar, the ends of the interlocking sections of the long guide bar and the short guide bar are flush after they are installed in place through the through groove, and the ends of the weld legs of the long guide bar and the short guide bar are flush after they are installed in place.
[0009] The insulating side cover includes an upper fixing part and a lower fixing part in a stepped shape. The width of the upper fixing part on the side is smaller than that of the lower fixing part on the side. The upper fixing part and the lower fixing part respectively include a short and a long cantilever. The front ends of the cantilevers are fixed by screws. The rear ends of the cantilevers extend to the outside of the upper fixing part and the lower fixing part and are connected with auxiliary clamping pieces. The positions and numbers of the cantilevers and the auxiliary clamping pieces correspond to those of the long current-carrying bars and the short current-carrying bars. The auxiliary clamping pieces clamp the long current-carrying bars and the short current-carrying bars.
[0010] Further, the through groove forms a first rounded corner at the rear end, and a second rounded corner matching the first rounded corner is formed on the middle sections of the long current-carrying bar and the short current-carrying bar.
[0011] Further, the insulating housing forms upper, middle and lower three-layer extension plates on the back. The positions and numbers of the extension plates correspond to those of the long current-carrying bars. The welding sections of the long current-carrying bars are stuck at the outer ends of the extension plates.
[0012] Further, each layer of the extension plates forms a third rounded corner at the outer end.
[0013] Further, the bottom end of the welding leg forms a fourth rounded corner.
[0014] Further, the insulating housing is provided with a number of "king" - shaped reinforcing ribs at the front end, and the reinforcing ribs are correspondingly arranged between each group of the long current-carrying bars and the short current-carrying bars.
[0015] Further, the auxiliary clamping piece includes an intermediate section and an insertion section. The intermediate section is a "mouth" - shaped structure with an open side. The intermediate section is formed by buckling of a concave - convex structure. The insertion section extends from the intermediate section and is in a symmetric "V" shape. The two wings of the insertion section are narrow in the middle and wide at both ends, and 90° bending wings are formed at the rear end in opposite directions.
[0016] Further, a barb structure is provided at the connection between the intermediate section and the insertion section.
[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0018] The wire-to-board grid pluggable terminal block designed in this solution features an ingenious, simple, reasonable, stable, and reliable overall structure. The power supply components in the plug section utilize superimposed auxiliary clips to ensure both current-carrying capacity and clamping force and resistance to insertion and removal. Screws and nuts are used to secure the current-carrying components to the insulating shell. The long and short current-guiding strips on the socket end, arranged in a double-row stepped layout, ensure a stable connection between the PCB boards after soldering. The engagement and release of the plug's elastic arm and the mounting bracket provide quick insertion and removal for the wire and board ends, significantly reducing assembly time and improving connection stability. This design is widely applicable in industrial applications with limited height and space for wire-to-board connections. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the internal structure of the present invention;
[0021] Figure 3 Schematic diagrams of long and short guide strips;
[0022] Figure 4 This is a schematic diagram of the back structure of the insulating shell;
[0023] Figure 5 This is a schematic diagram of the internal cross-sectional structure of this utility model;
[0024] Figure 6 This is a schematic diagram of the back structure of this utility model;
[0025] Figure 7 This is a schematic diagram of the insulating outer shell;
[0026] Figure 8 This is a schematic diagram of the auxiliary clip structure;
[0027] In the diagram: 1-Insulating outer shell; 2-Insulating side cover; 3-Hanging platform; 4-Through groove; 41-First rounded corner; 5-Long guide strip; 6-Short guide strip; 7-Upper fixing part; 8-Lower fixing part; 9-Cantilever; 10-Screw; 11-Auxiliary clamp; 12-Extension plate; 13-Third rounded corner; 14-Reinforcing rib; 15-Barbed structure; 001-Interlocking section; 002-Intermediate section; 003-Welding section; 004-Weld foot; 005-Second rounded corner; 111-Intermediate section; 112-Insertion section. Detailed Implementation
[0028] The present invention will be further described below with reference to specific embodiments.
[0029] like Figure 1-8As shown, the wire-to-plate grid pluggable terminal block of this utility model is composed of two parts: an insulating shell 1 and an insulating side cover 2.
[0030] The insulating shell 1 includes a mounting platform 3 located at the top center of the shell. The mounting platform 3 protrudes from the entire insulating shell 1 in height and forms a groove that can cooperate with the locking point on the elastic arm of the plug to achieve the effect of preventing it from falling off.
[0031] Multiple through slots 4 are also provided on the surface of the insulating shell 1. These through slots 4 are arranged in two rows at equal intervals. The through slots 4 in the upper row are provided with long guide strips 5, and the through slots 4 in the lower row are provided with short guide strips 6. The whole structure forms a double-layer stepped fence structure. The length direction can be expanded according to actual needs to increase the number of poles, that is, to increase the number of through slots 4 accordingly.
[0032] Specifically, both the long guide bar 5 and the short guide bar 6 are L-shaped and each includes a connecting section 001, a middle section 002, and a welding section 003. The connecting section 001 and the welding section 003 are the straight sections on both sides of the L-shaped long guide bar 5 / short guide bar 6, respectively, while the middle section 002 corresponds to the L-shaped section. Furthermore, the middle section 002 of the long guide bar 5 is larger than the middle section 002 of the short guide bar 6. During installation, the connecting section 001 is responsible for passing through the through groove 4.
[0033] A weld foot 004 is formed on the welding section 003, and the weld foot 004 of the long guide bar 5 is located behind the weld foot 004 of the short guide bar 6. The ends of the insertion sections 001 of the long guide bar 5 and the short guide bar 6 are flush after they are installed in place through the through groove 4. The ends of the weld feet 004 of the long guide bar 5 and the short guide bar 6 are also flush after they are installed in place.
[0034] Furthermore, in this embodiment, the through groove 4 has a first rounded corner 41 at the rear end, and the middle section 002 of the long guide bar 5 and the short guide bar 6 has a second rounded corner 005 that matches the first rounded corner 41, thereby improving the convenience of plugging and unplugging installation.
[0035] In this embodiment, the insulating shell 1 has three extension plates 12 formed on its back, namely upper, middle and lower. The position and number of these extension plates 12 correspond to the long guide strip 5. The welding section 003 of the long guide strip 5 is stuck at the outer end of the extension plate 12, which can further improve the stability after installation.
[0036] Additionally, a third fillet 13 can be provided at the outer end of each extension plate 12, and a fourth fillet 14 can be formed at the bottom of the weld foot 004, which can also improve the convenience of plugging and unplugging installation.
[0037] The insulating side cover 2 includes a stepped upper fixing part 7 and a lower fixing part 8. Among them, the width of the upper fixing part 7 on the side is smaller than the width of the lower fixing part 8 on the side. The upper fixing part 7 and the lower fixing part 8 respectively include a short and a long cantilever 9. The front end of the cantilever 9 is fixed by a screw 10, and the rear end extends outward from the upper fixing part 7 and the lower fixing part 8 and is connected with an auxiliary clip 11. The positions and numbers of the cantilever 9 and the auxiliary clip 11 correspond to the long current-carrying strip 5 and the short current-carrying strip 6 respectively. Thus, the long current-carrying strip 5 and the short current-carrying strip 6 can be clamped by the auxiliary clip 11.
[0038] The auxiliary clip 11 also includes an intermediate section 111 and an insertion section 112. Among them, the intermediate section 111 is a "mouth" - shaped structure with an open side. The intermediate section 111 is formed by buckling of a concave - convex structure. The insertion section 112 extends from the intermediate section 111 and is in a symmetric "V" shape. The two wings of the insertion section 112 are narrow in the middle and wide at both ends, and 90° bending wings are formed at the rear end in opposite directions.
[0039] The insulating housing 1 is provided with a number of "king" - shaped reinforcing ribs 14 at the front end. These reinforcing ribs 14 are correspondingly arranged between each group of long current - carrying strips 5 and short current - carrying strips 6. They can enhance the overall structural strength and further improve the anti - detachment performance.
[0040] Finally, a barbed structure 15 can be set at the connection between the middle section 002 and the mating section 001 to further improve the anti - detachment performance.
[0041] In the setting of the screw 10, a two - combination structure can be adopted. The screw head is disc - shaped, with a one - and - ten combination groove set according to the national standard to meet the use requirements of more tools. A square gasket is arranged from the bottom of the screw head to the threaded end to compact the wire or cold - pressed terminal during the wiring process, thereby providing good electrical contact. The microscopic deformation of the square gasket can also provide a reverse pre - tightening force, which can, to a certain extent, prevent the loosening of the thread.
[0042] In summary, the wire - to - board fence plug - and - unplug type wiring terminal designed in this scheme has a clever, simple, reasonable, stable and reliable overall structural design. The power current - carrying parts of the plug part ensure the clamping force and the plug - and - unplug resistance while meeting the current - carrying capacity by superimposing the auxiliary clip 11. The current - carrying parts and the insulating housing 1 are assembled and positioned through the screw 10 and the nut. The long current - carrying strip 5 and the short current - carrying strip 6 on the welding surface of the socket end make the connection between the PCB boards firm through a double - row stepped layout. The cooperation and release of the elastic arm of the plug and the hanging platform 3 provide a fast plug - and - unplug function for the wire end and the board end, thus helping the staff to greatly reduce the assembly time, improving the connection firmness, and can be widely applied to the wire - to - board connection industrial application scenarios with limited height space.
Claims
1. A wire-to-plate fence pluggable terminal block, characterized in that, It is composed of an insulating housing and an insulating side cover assembled and spliced together; The insulating housing includes a hanging platform arranged in the middle of the top of the insulating housing, and through grooves opened on the surface of the insulating housing plate. There are multiple through grooves and they are arranged in two upper and lower rows at equal intervals in sequence. A long guiding strip is inserted into the through grooves in the upper row, and a short guiding strip is inserted into the through grooves in the lower row; Both the long guiding strip and the short guiding strip are in an "L" shape and each includes an inserting section, a middle section and a welding section in sequence. The inserting section and the welding section are respectively the two straight parts on both sides of the long guiding strip / short guiding strip in an "L" shape, and the middle section is the "L" shaped part. The middle section of the long guiding strip is larger than the middle section of the short guiding strip, and the inserting section passes through the through groove; The welding section forms a welding foot. The welding foot of the long guiding strip is located behind the welding foot of the short guiding strip. The ends of the inserting sections of the long guiding strip and the short guiding strip are flush after being installed in place through the through groove, and the ends of the welding feet of the long guiding strip and the short guiding strip are flush after being installed in place; The insulating side cover includes an upper fixing part and a lower fixing part in a stepped shape. The width of the upper fixing part on the side is smaller than the width of the lower fixing part on the side. The upper fixing part and the lower fixing part respectively include a short and a long cantilever. The front end of the cantilever is fixed by a screw. The rear end of the cantilever extends to the outside of the upper fixing part and the lower fixing part and is connected with an auxiliary clamping piece. The positions and numbers of the cantilever and the auxiliary clamping piece correspond to those of the long guiding strip and the short guiding strip, and the auxiliary clamping piece clamps the long guiding strip and the short guiding strip.
2. The wire-to-plate fence pluggable terminal block according to claim 1, characterized in that, The through groove forms a first rounded corner at the rear end, and a second rounded corner matching the first rounded corner is formed on the middle sections of the long guiding strip and the short guiding strip.
3. The wire-to-plate fence pluggable terminal block according to claim 1, characterized in that, The insulating housing forms upper, middle and lower three-layer extension plates on the back. The positions and numbers of the extension plates correspond to those of the long guiding strip, and the welding section of the long guiding strip is stuck at the outer end of the extension plate.
4. The wire-to-plate fence pluggable terminal block according to claim 3, characterized in that, Each layer of the extension plate forms a third rounded corner at the outer end.
5. The wire-to-plate fence pluggable terminal block according to claim 1, characterized in that, The bottom end of the welding foot forms a fourth rounded corner.
6. The wire-to-plate fence pluggable terminal block according to claim 1, characterized in that, The insulating housing is provided with several "king" shaped reinforcing ribs at the front end, and the reinforcing ribs are correspondingly arranged between each group of the long guiding strip and the short guiding strip.
7. The wire-to-plate fence pluggable terminal block according to claim 1, characterized in that, The auxiliary clamping piece includes an intermediate section and an inserting section. The intermediate section is a "mouth" shaped structure with an open side. The intermediate section is buckled by a concave-convex structure. The inserting section extends from the middle section and is in a symmetric "V" shape. The middle of the two wings of the inserting section is narrow and the two ends are wide, and 90° bending wings are formed at the rear end in opposite directions.
8. The wire-to-plate fence pluggable terminal block according to claim 1, characterized in that, A barbed structure is provided at the connection between the middle section and the inserting section.