Direct insertion type power connection terminal with lock catch
By introducing limiting components and protective plates into the plug-in electrical terminals, the problem of tilting of the terminals during vibration is solved, achieving stable connection and quick assembly/disassembly, and improving safety and signal transmission reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN YUNDIAN NEW ENERGY CO LTD
- Filing Date
- 2025-04-15
- Publication Date
- 2026-04-28
AI Technical Summary
Existing plug-in terminals are prone to tilting and shaking when subjected to external vibrations, resulting in unstable signal transmission and making quick disassembly and assembly difficult.
A locking plug-in electrical terminal was designed. Through the cooperation of limiting components and protective plates, and by using structures such as arc rods, limiting blocks, positioning shafts and springs, the connection is initially fixed and protected, improving stability and supporting quick assembly and disassembly.
It improves the stability and safety of the power terminals, ensures the stability of signal transmission, and simplifies the quick disassembly and assembly operations during maintenance.
Smart Images

Figure CN224177625U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a plug-in electrical terminal, specifically a plug-in electrical terminal with a locking mechanism, belonging to the field of terminal block technology. Background Technology
[0002] Terminal blocks are used to facilitate the connection of wires. They consist of a metal plate encased in insulating plastic, with holes at both ends for inserting wires. For example, if two wires need to be connected, a terminal block can be used. The operation method is as follows: insert the wire into the terminal and connect the wire to the metal plate, thus connecting the two wires together.
[0003] Chinese patent application publication number CN219718013U discloses a direct-insertion terminal structure for motors. This utility model provides a direct-insertion terminal structure for motors that utilizes a connecting spring to tighten the connecting terminal, ensuring that the connecting terminal always contacts the carbon fiber tube, thus achieving an internal electrical connection in the motor. This eliminates the need for fixing the connecting terminal and the carbon fiber tube, reducing assembly steps and costs while ensuring connection stability.
[0004] Although the above-mentioned patent solution eliminates the need for fixed connection terminals and carbon tubes, the plug-in terminals in the above-mentioned patent are not supported. When subjected to external vibration, the plug-in terminals will tilt and sway to one side, resulting in unstable signal transmission. This leads to poor convenience and reliability, and makes it inconvenient to quickly disassemble and assemble the terminals during maintenance.
[0005] Therefore, a plug-in electrical terminal with a locking mechanism is proposed here. Utility Model Content
[0006] This utility model proposes a plug-in electrical terminal with a locking mechanism, which can protect the connection point of the electrical terminal, improve the safety of the electrical terminal, and enable quick assembly and disassembly of the electrical terminal.
[0007] This utility model is achieved through the following technical solution: a plug-in electrical terminal with a locking buckle, including a support shell, a connecting frame is provided on the outside of the support shell, and two limiting components for fixing the connecting frame are provided on one side of the support shell. The limiting components include two fixing blocks fixed on one side of the support shell, and an arc-shaped rod is rotatably connected to one side of each fixing block. A limiting block is fixed at the end of each arc-shaped rod away from the fixing block.
[0008] Furthermore, a set of limiting grooves is provided inside the connecting frame, and a positioning shaft is fixed inside the limiting grooves. A set of slots is provided on the side of the connecting frame away from the supporting shell.
[0009] Furthermore, the limiting assembly also includes two pull rods respectively fixed to the middle sections of the two arc-shaped rods, with a tension spring fixed between the two pull rods, and the width of the outer part of the arc-shaped rod is smaller than the width of the inner part of the limiting groove.
[0010] The support shell has protective plates that slide on both its upper and lower surfaces. Inside the support shell are two sets of support components that support the two protective plates respectively. Each support component includes a storage groove on one side of the support shell. A limit rod is fixed inside the storage groove. A connecting sleeve is rotatably sleeved around the limit rod. A telescopic rod is slidably sleeved inside the connecting sleeve. A positioning block fixed on one side of the protective plate is rotatably connected to the end of the telescopic rod away from the connecting sleeve.
[0011] Furthermore, a spring is fixed between the end of the telescopic rod near the positioning block and the connecting sleeve, and the spring is sleeved around the periphery of the telescopic rod.
[0012] Furthermore, a set of sliding grooves are provided on both the upper and lower sides of the support shell, and a sliding rod fixed to one side of the protective plate is slidably connected inside the sliding groove.
[0013] Each of the protective plates has a connecting groove at one end near the connecting frame. Each connecting groove has a positioning component for protecting the connecting frame. The positioning component includes a connecting block fixed to one side of the connecting groove. A positioning frame is rotatably connected to one side of the connecting block. A locking block is fixed at the end of the positioning frame away from the connecting block, and the width of the locking block outside is smaller than the width of the locking groove inside.
[0014] Furthermore, a compression spring is fixed to the side of the positioning frame away from the locking block, and the end of the compression spring away from the positioning frame is fixed to one side of the connecting groove.
[0015] This utility model provides a plug-in electrical terminal with a locking mechanism, which has the following advantages:
[0016] 1. This locking plug-in electrical terminal has movable protective plates. The two protective plates are moved to the outside of the connecting frame. The spring pushes the telescopic rod away from the connecting sleeve, and the positioning block supports the position of the protective plates. When the protective plates move, the positioning frame moves with them. When the positioning frame moves to one side of the connecting frame, the compression spring pushes the positioning frame to move, so that the locking block enters the inside of the locking slot. This can protect the connection between the support shell and the connecting frame and improve the stability of the electrical terminal during use.
[0017] 2. This locking plug-in electrical terminal allows one end of the connecting frame to be inserted into the support housing, and the limiting component to be inserted into the limiting groove. When the two arc-shaped rods approach the positioning shaft, the two limiting blocks move away from each other. When the limiting blocks move to the positioning shaft, the two arc-shaped rods are pulled closer together by the tension spring. Through the cooperation between the arc-shaped rods, the limiting blocks and the positioning shaft, the position of the connecting frame can be initially fixed, so as to facilitate the quick assembly and disassembly of the electrical terminal. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0019] Figure 2 This is a three-dimensional structural diagram of the limiting component in this utility model;
[0020] Figure 3 This is a three-dimensional structural diagram of the support component in this utility model;
[0021] Figure 4 This is a three-dimensional structural diagram of the positioning component in this utility model.
[0022] Explanation of reference numerals in the attached figures
[0023] 1. Support shell;
[0024] 2. Connecting bracket; 21. Limiting groove; 22. Positioning shaft; 23. Slot;
[0025] 3. Limiting component; 31. Fixing block; 32. Arc-shaped rod; 33. Limiting block; 34. Pull rod; 35. Tension spring;
[0026] 4. Protective plate; 41. Connecting groove; 5. Slide groove; 6. Slide rod;
[0027] 7. Support assembly; 71. Storage slot; 72. Limiting rod; 73. Connecting sleeve; 74. Telescopic rod; 75. Positioning block; 76. Spring;
[0028] 8. Positioning component; 81. Connecting block; 82. Positioning frame; 83. Compression spring; 84. Locking block. Detailed Implementation
[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.
[0030] Please see Figures 1-4The present invention proposes the following implementation scheme: a plug-in electrical terminal with a locking buckle, including a support shell 1, a connecting frame 2 is provided on the outside of the support shell 1, and two limiting components 3 for fixing the connecting frame 2 are provided on one side of the support shell 1. The limiting components 3 include two fixing blocks 31 fixed on one side of the support shell 1. An arc-shaped rod 32 is rotatably connected to one side of each fixing block 31, and a limiting block 33 is fixed at the end of each arc-shaped rod 32 away from the fixing block 31.
[0031] Please refer to this carefully. Figure 1 , Figure 2 and Figure 4 The connecting frame 2 has a set of limiting grooves 21 inside, and a positioning shaft 22 is fixed inside the limiting grooves 21. The connecting frame 2 has a set of slots 23 on the side away from the support shell 1.
[0032] Please refer to this carefully. Figure 2 The limiting component 3 also includes two pull rods 34 fixed to the middle sections of the two arc-shaped rods 32 respectively, and a tension spring 35 is fixed between the two pull rods 34. The width of the outer part of the arc-shaped rods 32 is smaller than the width of the inner part of the limiting groove 21.
[0033] In the above scheme, when one end of the connecting frame 2 is inserted into the support shell 1, it drives the limiting component 3 to be inserted into the limiting groove 21. When the limiting block 33 moves to the positioning shaft 22, the tension spring 35 pulls the two arc rods 32 closer to each other. Through the cooperation between the arc rods 32, the limiting block 33 and the positioning shaft 22, the position of the connecting frame 2 can be initially fixed.
[0034] Please refer to this carefully. Figure 3 The upper and lower surfaces of the support shell 1 are slidably equipped with protective plates 4. The interior of the support shell 1 is provided with two sets of support components 7 that support the two protective plates 4 respectively. The support component 7 includes a storage groove 71 opened on one side of the support shell 1. A limit rod 72 is fixed inside the storage groove 71. A connecting sleeve 73 is rotatably sleeved around the periphery of the limit rod 72. A telescopic rod 74 is slidably sleeved inside the connecting sleeve 73. A positioning block 75 fixed on one side of the protective plate 4 is rotatably connected to the end of the telescopic rod 74 away from the connecting sleeve 73.
[0035] A spring 76 is fixed between the end of the telescopic rod 74 near the positioning block 75 and the connecting sleeve 73, and the spring 76 is sleeved on the periphery of the telescopic rod 74.
[0036] A set of sliding grooves 5 are provided on both the upper and lower sides of the support shell 1, and a sliding rod 6 fixed to one side of the protective plate 4 is slidably connected inside the sliding grooves 5.
[0037] In the above scheme, the protective plate 4 is then moved to the outside of the connecting frame 2, so that the connecting sleeve 73 and the telescopic rod 74 are moved to an angle close to the side of the connecting frame 2. The telescopic rod 74 is pushed away from the connecting sleeve 73 by the spring 76, and the position of the protective plate 4 is supported by the positioning block 75.
[0038] Please refer to this carefully. Figure 4 Each protective plate 4 has a connecting groove 41 at one end near the connecting frame 2. Each connecting groove 41 has a positioning component 8 for protecting the connecting frame 2. The positioning component 8 includes a connecting block 81 fixed to one side of the connecting groove 41. A positioning frame 82 is rotatably connected to one side of the connecting block 81. A locking block 84 is fixed at the end of the positioning frame 82 away from the connecting block 81. The width of the locking block 84 outside is smaller than the width of the locking groove 23 inside.
[0039] A compression spring 83 is fixed to the side of the positioning frame 82 away from the locking block 84, and the end of the compression spring 83 away from the positioning frame 82 is fixed to the side of the connecting groove 41.
[0040] In the above scheme, when the protective plate 4 moves, it drives the positioning frame 82 to move together. When the positioning frame 82 moves to one side of the connecting frame 2, the positioning frame 82 is pushed to move by the compression spring 83, so that the locking block 84 enters the interior of the locking slot 23, which can protect the connection between the support shell 1 and the connecting frame 2.
[0041] In use, the following steps are taken: one end of the connecting frame 2 is inserted into the support shell 1, and the limiting component 3 is inserted into the limiting groove 21. When the two arc-shaped rods 32 approach the positioning shaft 22, the two limiting blocks 33 move away from each other. When the limiting blocks 33 move to the positioning shaft 22, the tension spring 35 pulls the two arc-shaped rods 32 closer together. Through the cooperation between the arc-shaped rods 32, the limiting blocks 33, and the positioning shaft 22, the position of the connecting frame 2 can be initially fixed to facilitate the quick installation of the electrical terminals. Then, the protective plates 4 are moved to allow the two protective plates 4 to move... The connecting sleeve 73 and the telescopic rod 74 are moved to the outside of the connecting frame 2, so that the connecting sleeve 73 and the telescopic rod 74 are moved to an angle close to the side of the connecting frame 2. The telescopic rod 74 is pushed away from the connecting sleeve 73 by the spring 76, and the position of the protective plate 4 is supported by the positioning block 75. When the protective plate 4 moves, it drives the positioning frame 82 to move together. When the positioning frame 82 moves to one side of the connecting frame 2, the positioning frame 82 is pushed to move by the compression spring 83, so that the locking block 84 enters the interior of the locking groove 23. This can protect the connection between the support shell 1 and the connecting frame 2 and improve the safety of the electrical terminal.
[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A plug-in electrical terminal with a locking mechanism, comprising a support shell (1), characterized in that: The support shell (1) is provided with a connecting frame (2) on its outside. The support shell (1) is provided with two limiting components (3) for fixing the connecting frame (2) on one side. The limiting components (3) include two fixing blocks (31) fixed on one side of the support shell (1). Each fixing block (31) is rotatably connected to an arc rod (32) on one side. Each arc rod (32) is fixed with a limiting block (33) at the end away from the fixing block (31). The upper and lower surfaces of the support shell (1) are slidably equipped with protective plates (4). The interior of the support shell (1) is provided with two sets of support components (7) that support the two protective plates (4) respectively. The support component (7) includes a storage groove (71) opened on one side of the support shell (1). A limit rod (72) is fixed inside the storage groove (71). A connecting sleeve (73) is rotatably sleeved around the limit rod (72). A telescopic rod (74) is slidably sleeved inside the connecting sleeve (73). A positioning block (75) fixed on one side of the protective plate (4) is rotatably connected to one end of the telescopic rod (74) away from the connecting sleeve (73). Each of the protective plates (4) has a connecting groove (41) at one end near the connecting frame (2). Each connecting groove (41) has a positioning component (8) for protecting the connecting frame (2). The positioning component (8) includes a connecting block (81) fixed to one side of the connecting groove (41). A positioning frame (82) is rotatably connected to one side of the connecting block (81). A locking block (84) is fixed at one end of the positioning frame (82) away from the connecting block (81). The width of the locking block (84) outside is smaller than the width inside the locking groove (23).
2. The plug-in electrical terminal with locking mechanism according to claim 1, characterized in that: The connecting frame (2) has a set of limiting grooves (21) inside, and a positioning shaft (22) is fixed inside the limiting grooves (21). The connecting frame (2) has a set of slots (23) on the side away from the support shell (1).
3. A plug-in electrical terminal with a locking mechanism according to claim 1, characterized in that: The limiting component (3) also includes two pull rods (34) respectively fixed in the middle section of the two arc-shaped rods (32), and a tension spring (35) is fixed between the two pull rods (34), and the width outside the arc-shaped rods (32) is smaller than the width inside the limiting groove (21).
4. A locking plug-in electrical terminal according to claim 1, characterized in that: The upper and lower sides of the support shell (1) are provided with a set of sliding grooves (5), and a sliding rod (6) fixed to one side of the protective plate (4) is slidably connected inside the sliding groove (5).
5. A locking plug-in electrical terminal according to claim 1, characterized in that: A spring (76) is fixed between the end of the telescopic rod (74) near the positioning block (75) and the connecting sleeve (73), and the spring (76) is sleeved on the periphery of the telescopic rod (74).
6. A locking plug-in electrical terminal according to claim 1, characterized in that: A compression spring (83) is fixed to one side of the positioning frame (82) away from the locking block (84), and one end of the compression spring (83) away from the positioning frame (82) is fixed to one side of the connecting groove (41).
Citation Information
Patent Citations
Direct insertion type terminal structure for motor
CN219718013U