Locking crimping type wiring terminal
By using the design of the locking crimp terminal block, and the screw connection and limiting groove structure of the fastener and conductive clip, the problem of existing terminal blocks being unable to intuitively determine the wire being crimped in place and the position of the conductive clip being uncertain is solved. This achieves efficient and safe wiring operation and is suitable for power systems, industrial control and communication equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN DIAN ELECTRONIC TECH CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-19
AI Technical Summary
Existing crimp-type terminals cannot visually determine whether the wires are properly crimped during the wire connection process, which can easily lead to missed connections or repeated locking. Furthermore, the uncertain position of the conductive clip can cause misinsertion, affecting wiring efficiency and reliability.
A locking crimp terminal block was designed, which locks and releases the wires by screwing the fasteners and conductive clips together. Combined with the stop block and limit groove structure, it ensures that the conductive clip is fixed in position and avoids accidental operation in blind spots.
It improves wiring efficiency and reliability, avoids problems such as missing connections and mis-insertion, enhances installation accuracy and safety, extends product lifespan, and is suitable for power systems, industrial control, and communication equipment.
Smart Images

Figure CN224264283U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of terminal block technology, and in particular to a locking crimp terminal block. Background Technology
[0002] Terminal blocks, as key components in electrical connections, are widely used in power systems, automated control equipment, communication equipment, and many other fields. Their main function is to achieve reliable electrical connections between wires or between wires and electrical equipment. In practical applications, terminal blocks not only need to possess good conductivity and mechanical strength, but also should be easy to operate, highly safe, and easily maintainable.
[0003] Currently, existing crimp-type terminal blocks use a screw-based positioning system. Rotating the screw drives a conductive clip upwards, clamping the wire inserted into the terminal slot to achieve a stable connection between the wire and the terminal. However, in practical use, this structure has the following shortcomings:
[0004] First, in existing technology, the position of the screw is fixed. When workers need to crimp wires in multiple conductive clips, they cannot intuitively judge whether other wires have been crimped in place by observing the position of the screw. This can easily lead to missed connections or repeated screw tightening, which may affect the reliability of electrical connections or waste time.
[0005] Secondly, since the position of the conductive clip is movable, it may have moved upwards before the wire is inserted. In this case, the wire will extend into the lower end of the conductive clip, increasing the risk of misinsertion or improper installation, which in turn affects the wiring efficiency and quality. Utility Model Content
[0006] The present invention aims to at least solve the technical problems existing in the prior art. To this end, the present invention proposes a locking crimp terminal block, which is intuitive to operate, reliable in locking, and can meet the requirements of electrical connections for efficient, safe, and convenient operation.
[0007] A locking crimp-type terminal block according to some embodiments of the present invention includes an insulating shell, a cover plate, a fastener, and a conductive buckle. The insulating shell has a receiving cavity in its middle, and the conductive buckle is located within the receiving cavity. A wiring port is opened at the front end of the receiving cavity, and a positioning cavity is opened at the top of the receiving cavity. A wiring groove is opened in the middle of the conductive buckle, passing through the front end of the conductive buckle. A conductive connector is provided at the bottom of the conductive buckle, and the conductive connector passes through the outer wall of the insulating shell. A positioning block is provided at the bottom of the cover plate, extending into the positioning cavity. A crimping cavity is opened in the middle of the positioning block, passing through the upper and lower ends of the cover plate. The fastener is located within the crimping cavity, and a stop block is provided around the bottom of the crimping cavity, abutting against the top of the conductive buckle. A screw hole is opened at the top of the conductive buckle, and the bottom of the screw hole passes through the wiring groove. The fastener is screwed into the screw hole.
[0008] A locking crimp-type terminal block according to some embodiments of the present invention has at least the following beneficial effects:
[0009] This invention utilizes a fastener in the crimping cavity that is screwed into the threaded hole of the conductive buckle. The wire in the insertion slot can be locked and released by rotating the fastener. The position of the fastener on the cover plate allows for direct visual assessment of whether the wire has been crimped, avoiding missed connections or repeated locking due to blind spots. This improves wiring efficiency and reliability. The stop block abuts against the top of the conductive buckle, preventing its movement and thus avoiding mis-insertion caused by uncertain buckle positions. This enhances installation accuracy and safety, improves product maintainability and lifespan, and can be widely applied in power systems, industrial control, communication equipment, and other fields, meeting the diverse needs of modern electrical engineering for efficient, safe, and convenient operation of terminal blocks.
[0010] According to some embodiments of the present invention, a locking crimp terminal block is provided with a bent portion at the top of the conductive connector, a positioning groove is provided between the conductive connector and the bent portion, the bent portion extends into the wiring groove, and the bottom of the conductive buckle is located in the positioning groove.
[0011] According to some embodiments of the present invention, a locking crimp terminal block is provided with first limiting grooves at the front and rear ends of the receiving cavity, and the conductive buckle is passed through the front and rear ends of the wiring groove. The conductive connector and the front and rear ends of the bent portion are respectively located in the two first limiting grooves.
[0012] According to some embodiments of the present invention, a locking crimp terminal block is provided, wherein the first limiting groove extends through the top of the insulating shell, and the positioning block is provided with a first positioning part on both the front and rear sides, and the two first positioning parts are respectively located in the two first limiting grooves.
[0013] According to some embodiments of the present invention, a locking crimp terminal block is provided on the bottom outer periphery of the positioning block, and the limiting block is located on the outer periphery of the conductive buckle.
[0014] According to some embodiments of the present invention, a locking crimp terminal block is provided with a second limiting groove at both the left and right ends of the positioning cavity, and a second positioning part at both the left and right ends of the positioning block, with the two second positioning parts respectively located in the two second limiting grooves.
[0015] According to some embodiments of the present invention, a locking crimp terminal block is provided with a plurality of pins at the bottom of the conductive connector, and a plurality of through holes are provided at the bottom of the insulating shell, with the pins passing through the through holes.
[0016] According to some embodiments of the present invention, a locking crimp terminal is provided with protrusions and grooves at the left and right ends of the insulating shell, respectively, with the protrusions and grooves corresponding to each other.
[0017] According to some embodiments of the present invention, a locking crimp terminal block is provided with multiple slots at the top edge of the insulating shell and multiple locking blocks at the edge of the cover plate, wherein the slots and the locking blocks are engaged one by one.
[0018] According to some embodiments of the present invention, a locking crimp terminal block is provided, wherein multiple fasteners, conductive buckles, and conductive buckles are provided, and multiple positioning blocks are provided at the bottom of the cover plate.
[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0021] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.
[0022] Figure 2 This is a cross-sectional view of an embodiment of the present utility model.
[0023] Figure 3 This is a schematic diagram of the structure of the insulating shell according to an embodiment of the present invention.
[0024] Figure 4 This is a schematic diagram of the cover plate according to an embodiment of the present utility model.
[0025] Figure 5 This is a structural schematic diagram of the fastener, conductive buckle, and conductive connector according to an embodiment of the present utility model.
[0026] Reference numerals: 1. Insulating shell, 2. Cover plate, 3. Fastener, 4. Conductive buckle, 5. Receiving cavity, 6. Wiring port, 7. Positioning cavity, 8. Wiring groove, 9. Conductive connector, 10. Positioning block, 11. Crimping cavity, 12. Stop block, 13. Screw hole, 14. Bending part, 15. Positioning groove, 16. First limiting groove, 17. First positioning part, 18. Limiting block, 19. Second limiting groove, 20. Second positioning part, 21. Pin, 22. Through hole, 23. Protrusion, 24. Groove, 25. Slot, 26. Locking block. Detailed Implementation
[0027] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0028] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, left, right, front, and back, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the module 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 utility model.
[0029] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.
[0030] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0031] like Figures 1-5 As shown, this utility model embodiment provides a locking crimp-type terminal block.
[0032] A locking crimp terminal block includes an insulating housing 1, a cover plate 2, a fastener 3, and a conductive buckle 4. The insulating housing 1 has a receiving cavity 5 in its middle, and the conductive buckle 4 is located within the receiving cavity 5. A wiring port 6 is provided at the front end of the receiving cavity 5, and a positioning cavity 7 is provided at the top of the receiving cavity 5. A wiring groove 8 is provided in the middle of the conductive buckle 4, extending through the front end of the conductive buckle 4. A conductive connector 9 is provided at the bottom of the conductive buckle 4, and the conductive connector 9 passes through the outer wall of the insulating housing 1. A positioning block 10 is provided at the bottom of the cover plate 2. The positioning block 10 extends into the positioning cavity 7. A crimping cavity 11 is provided in the middle of the positioning block 10. The crimping cavity 11 passes through the upper and lower ends of the cover plate 2. The fastener 3 is located in the crimping cavity 11. A stop block 12 is provided around the bottom of the crimping cavity 11. The stop block 12 abuts against the top of the conductive buckle 4. A screw hole 13 is provided at the top of the conductive buckle 4. The bottom of the screw hole 13 passes through the wiring groove 8. The fastener 3 is screwed into the screw hole 13.
[0033] This invention utilizes a fastener 3 in the crimping cavity 11, which is screwed into the screw hole 13 of the conductive buckle 4. By rotating the fastener 3, the wires in the wiring slot 8 can be locked and released. The positional change of the fastener 3 on the cover plate 2 allows for direct visual assessment of whether the wires have been crimped, avoiding missed connections or repeated locking due to blind spots, thus improving wiring efficiency and reliability. The stop block 12 abuts against the top of the conductive buckle 4, preventing the buckle 4 from moving and avoiding mis-insertion due to uncertain buckle position. This improves installation accuracy and safety, enhances product maintainability and lifespan, and allows for wide application in power systems, industrial control, communication equipment, and other fields, meeting the diverse needs of modern electrical engineering for efficient, safe, and convenient operation of wiring terminals.
[0034] This embodiment describes a locking crimp-type terminal block. The conductive connector 9 has a bent portion 14 at its top, and a positioning groove 15 is provided between the conductive connector 9 and the bent portion 14. The bent portion 14 extends into the wiring groove 8, and the bottom of the conductive buckle 4 is located in the positioning groove 15. Specifically, the bent portion 14 and the positioning groove 15 enhance the connection stability between the conductive connector 9 and the conductive buckle 4. Simultaneously, the wire can be directly crimped onto the conductive connector 9 during the crimping process, ensuring the continuity of the conductive path and its conductivity.
[0035] In this embodiment, a locking crimp-type terminal block is provided. The front and rear ends of the receiving cavity 5 are provided with first limiting grooves 16. The front and rear ends of the wiring groove 8 both pass through the conductive buckle 4. The front and rear ends of the conductive connector 9 and the bent portion 14 are respectively located in the two first limiting grooves 16. Specifically, the first limiting grooves 16 limit the conductive connector 9 and its bent portion 14 in the front-rear direction, effectively preventing misalignment or loosening of the conductive components during assembly or use, and improving the stability and assembly accuracy of the overall structure.
[0036] In this embodiment, a locking crimp-type terminal block is described. The first limiting groove 16 extends through the top of the insulating shell 1. The positioning block 10 has first positioning parts 17 on both its front and rear sides, with each first positioning part 17 located within a first limiting groove 16. Specifically, the cooperation between the first positioning parts 17 and the first limiting grooves 16 creates a stable front-rear limiting connection between the cover plate 2 and the insulating shell 1, enhancing the stability of the cover plate 2.
[0037] In this embodiment, a locking crimp-type terminal block is provided with a limiting block 18 on the bottom outer periphery of the positioning block 10. The limiting block 18 is located on the outer periphery of the conductive buckle 4. Specifically, the limiting block 18 is arranged around the outer periphery of the conductive buckle 4, and plays a lateral limiting role in the conductive buckle 4 during the crimping process to prevent it from shaking or shifting, thereby ensuring the accuracy of the crimping action and the reliability of the conductive contact.
[0038] In this embodiment, a locking crimp-type terminal block is provided with second limiting grooves 19 at both the left and right ends of the positioning cavity 7, and second positioning parts 20 at both the left and right ends of the positioning block 10. The two second positioning parts 20 are respectively located in the two second limiting grooves 19. Specifically, the cooperation between the second positioning parts 20 and the second limiting grooves 19 achieves precise positioning in the left and right directions, further improving the assembly accuracy between the cover plate 2 and the insulating shell 1 and the structural stability during the crimping process.
[0039] This embodiment describes a locking crimp-type terminal block. The conductive connector 9 has several pins 21 at its bottom, and the insulating housing 1 has several through holes 22 at its bottom. The pins 21 pass through the through holes 22. Specifically, the insertion structure of the pins 21 and the through holes 22 not only achieves a stable connection between the conductive connector 9 and the external circuit, but also simplifies the assembly process, improves installation efficiency, and provides good conductivity and mechanical fixing strength.
[0040] This embodiment describes a locking crimp-type terminal block. The insulating housing 1 has protrusions 23 and grooves 24 at its left and right ends, respectively, with the protrusions 23 and grooves 24 corresponding to each other. Specifically, through the cooperation of the protrusions 23 and grooves 24, multiple terminal blocks can be quickly spliced and aligned to form a modular structure, facilitating expanded applications and making it suitable for multi-line parallel or dense wiring applications.
[0041] This embodiment describes a locking crimp terminal block. The top edge of the insulating housing 1 has multiple slots 25, and the bottom edge of the cover plate 2 has multiple locking blocks 26. The slots 25 and the locking blocks 26 engage one-to-one. Specifically, the engaging structure of the slots 25 and the locking blocks 26 allows the cover plate 2 to be quickly and accurately installed onto the insulating housing 1, facilitating assembly and maintenance.
[0042] This embodiment describes a locking crimp-type terminal block, in which multiple fasteners 3, conductive buckles 4, and conductive connectors 9 are provided, and multiple positioning blocks 10 are provided at the bottom of the cover plate 2. Specifically, the multiple fasteners 3, conductive buckles 4, and conductive connectors 9 enable the terminal block to support the simultaneous connection of multiple wires, while the multiple positioning blocks 10 independently limit and crimp each conductive buckle 4, achieving efficient and safe multi-channel wiring.
[0043] In this embodiment, a locking crimp terminal block is described, wherein the fastener 3 is a screw or bolt.
[0044] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A locking crimp-type terminal block, characterized in that: The device includes an insulating shell, a cover plate, fasteners, and a conductive buckle. The insulating shell has a receiving cavity in its middle, and the conductive buckle is located within the receiving cavity. A wiring port is provided at the front end of the receiving cavity, and a positioning cavity is provided at the top of the receiving cavity. A wiring groove is provided in the middle of the conductive buckle, extending through the front end of the conductive buckle. A conductive connector is provided at the bottom of the conductive buckle, passing through the outer wall of the insulating shell. A positioning block is provided at the bottom of the cover plate, extending into the positioning cavity. A crimping cavity is provided in the middle of the positioning block, extending through the upper and lower ends of the cover plate. The fastener is located within the crimping cavity, and a stop block is provided around the bottom of the crimping cavity, abutting against the top of the conductive buckle. A screw hole is provided at the top of the conductive buckle, with the wiring groove extending through the bottom of the screw hole. The fastener is screwed into the screw hole.
2. The locking crimp terminal block according to claim 1, characterized in that: The top of the conductive connector is provided with a bent portion, and a positioning groove is provided between the conductive connector and the bent portion. The bent portion extends into the wiring groove, and the bottom of the conductive buckle is located in the positioning groove.
3. A locking crimp terminal block according to claim 2, characterized in that: The front and rear ends of the receiving cavity are provided with first limiting grooves, the front and rear ends of the wiring groove are both through the conductive buckle, and the front and rear ends of the conductive connector and the bent part are respectively located in the two first limiting grooves.
4. A locking crimp terminal block according to claim 3, characterized in that: The first limiting groove extends through the top of the insulating shell, and the positioning block is provided with a first positioning part on both the front and rear sides, with the two first positioning parts located in the two first limiting grooves respectively.
5. A locking crimp terminal block according to claim 1, characterized in that: A limiting block is provided on the bottom outer periphery of the positioning block, and the limiting block is located on the outer periphery of the conductive buckle.
6. A locking crimp terminal block according to claim 1, characterized in that: The positioning cavity is provided with a second limiting groove at both the left and right ends, and the positioning block is provided with a second positioning part at both the left and right ends, with the two second positioning parts located in the two second limiting grooves respectively.
7. A locking crimp terminal block according to claim 1, characterized in that: The bottom of the conductive connector is provided with several pins, and the bottom of the insulating shell is provided with several through holes, through which the pins pass.
8. A locking crimp terminal block according to claim 1, characterized in that: The insulating shell has protrusions and grooves at its left and right ends, respectively, with the protrusions and grooves corresponding to each other.
9. A locking crimp terminal block according to claim 1, characterized in that: The top edge of the insulating shell is provided with multiple slots, and the edge of the cover plate is provided with multiple blocks, and the slots and blocks engage one by one.
10. A locking crimp terminal block according to claim 1, characterized in that: Multiple fasteners, multiple conductive buckles, and multiple positioning blocks are provided at the bottom of the cover plate.