Terminal block with on-off function
By designing a terminal block with on/off functionality, and using a single handle to control multiple functional areas, the problems of complex structure, large space occupation, and inconvenient operation of existing terminal blocks are solved, enabling convenient and safe wiring operations and circuit control.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DINKLE M&E CHINA
- Filing Date
- 2025-04-28
- Publication Date
- 2026-05-15
AI Technical Summary
Existing terminal blocks have complex structures, occupy a lot of space, are inconvenient to operate and costly, and are prone to posing safety hazards if the circuit is forgotten to be disconnected when wiring.
Design a terminal block with on/off function, which can control multiple functional areas simultaneously through a handle, including wiring and circuit on/off functions. The automatic opening and closing of the circuit is achieved by using the synchronous movement of springs and movable blocks, which simplifies the structure and improves space utilization.
It enables convenient wiring operations, ensures that the circuit is automatically disconnected during wiring, improves safety, reduces structural complexity and space occupation, and lowers costs.
Smart Images
Figure CN224248969U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a connector, and more particularly to a terminal block with a switching function. Background Technology
[0002] The existing terminal block only has a wiring function. It controls the spring piece inside the wiring cavity of the insulating body to move closer or further away from the conductive plate in the wiring cavity by pressing the handle. In turn, it controls the opening or closing of the elastic clamp structure formed by the spring piece and the conductive plate to realize wire entry, wire exit and wiring.
[0003] The handle on the existing terminal block can only control the opening and closing of the spring contacts. When the terminal block has two or more functional areas such as wiring and circuit on / off control, multiple control structures need to be installed on the insulating body of the terminal block. This makes the overall structure of the terminal block complex, wastes product space, increases the size of the terminal block, and is not conducive to installation and use in small spaces. The cost of the terminal block is also relatively high. In addition, multiple control structures need to be controlled separately during wiring, which is inconvenient and can easily lead to danger if the circuit is not disconnected during wiring. Utility Model Content
[0004] To overcome the above-mentioned defects, this utility model provides a terminal block with on / off function. This terminal block with on / off function can control multiple functional areas simultaneously through a single handle, making operation more convenient; moreover, the structure is more compact and the space utilization rate is higher.
[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: a terminal block with switching function, including an insulating body, a first terminal, a spring, and a handle. The insulating body has a wiring cavity, and the side wall of the insulating body also has an inlet hole communicating with the wiring cavity. The conductive plate of the first terminal is fixedly disposed in the wiring cavity. One end of the spring is fixedly disposed in the wiring cavity, and the other end of the spring can form an elastic clamping structure with the conductive plate of the first terminal. The wire inserted through the inlet hole can be clamped between the other end of the spring and the conductive plate, thereby conducting electricity with the first terminal. The handle is mounted on the insulating body and can move within a set range. One end of the handle can drive the other end of the spring towards the... Moving away from the conductive plate, the insulating body also has a second terminal and a third terminal fixedly installed inside, with the second terminal and the third terminal spaced apart. The second terminal has a first elastic contact, and the third terminal has a second elastic contact. The first elastic contact and the second elastic contact can make close contact and conduct electricity in their natural state. The insulating body also has a movable block that can move. The handle can drive the movable block to move synchronously with it. The movable block can make the first elastic contact and the first elastic contact be in a state of disengagement or contact by reciprocating with the handle. The first terminal, the second terminal and the third terminal all have welding pins that extend out of the outside of the insulating body.
[0006] As a further improvement of this utility model, the insulating body is further provided with a reset elastic element, which provides an elastic reset force to the movable block. The elastic reset force enables the movable block to move to the initial position that keeps the first elastic contact and the second elastic contact in a contact and conductive state.
[0007] As a further improvement of this utility model, the movable block can be inserted between the first elastic contact and the first elastic contact as the handle reciprocates, isolating or separating the two from the contact surface of the first elastic contact and keeping them in contact.
[0008] As a further improvement of this utility model, the first elastic contact on the second terminal is an elastic cantilever structure extending inclined towards the third terminal, and the second elastic contact on the third terminal is an elastic cantilever structure extending inclined towards the second terminal. The free ends of the first and second elastic contacts can be in close contact. The movable block is located between the second and third terminals. The movable block can be installed in the insulating body by sliding back and forth linearly a set distance along the direction parallel to the second and third terminals. The movable block is provided with a partition surface, and each partition surface is provided with an avoidance hollow structure. The free ends of the first elastic contact of the second terminal and the second elastic contact of the third terminal are elastically pressed against the two sides of the partition surface of the movable block, respectively. After the free ends of the first elastic contact of the second terminal and the second elastic contact of the third terminal slide into the avoidance hollow structure on the partition surface, they can be in close contact to form a conductor.
[0009] As a further improvement of this utility model, the partition surface of the movable block is connected to the avoidance hollow structure through a chamfered surface with gradually thinning thickness.
[0010] As a further improvement of this utility model, the first elastic contact member and the second elastic contact member have a reverse bending structure formed at the free end of their elastic cantilever structure, and the first elastic member and the second elastic member are in contact and connected through the convex arc surface formed by the reverse bending structure.
[0011] As a further improvement of this utility model, the insulating body is provided with a spring groove, the reset elastic element is a spring inserted into the spring groove, and one end of the movable block along its sliding direction is provided with a guide post. The guide post can be inserted into the spring, and one end of the movable block along its sliding direction can press against the spring to force the spring to undergo elastic deformation.
[0012] As a further improvement of this utility model, the handle is provided with a pressing rib, which abuts against the other end face of the movable block along its sliding direction.
[0013] As a further improvement of this utility model, the insulating body is further provided with a guide groove, the movable block is slidably inserted into the guide groove, and the two ends of the movable slider along its sliding direction are respectively stopped on the inner side surfaces of the two ends of the guide groove along its extension direction.
[0014] As a further improvement of this utility model, a handle socket is provided on the side wall of the insulating body. The other end of the handle extends through the handle socket to the outside of the wiring cavity of the insulating body to form a pressing operation end. One end of the handle is rotatably mounted on the inner side wall of the wiring cavity through a hinge shaft. A slot is provided on the side wall of one end of the handle. A protrusion is provided on the side wall of the other end of the spring. The protrusion on the side wall of the other end of the spring is inserted into the slot on the side wall of one end of the handle to realize the connection between the other end of the spring and the side wall of one end of the handle. Pressing the pressing operation end of the handle can make the handle rotate around the hinge shaft at one end, thereby causing the other end of the spring to swing elastically. The two side walls of the handle along its swing direction are respectively stopped on the inner side of the handle socket.
[0015] The beneficial effects of this utility model are as follows: This utility model provides a wiring functional area formed by a spring contact and a conductive plate of the first terminal within the insulating body, and also provides a circuit switching functional area formed by a second terminal, a third terminal, and a movable block. These two functional areas enable the terminal block to have both wiring and circuit switching control functions. During wiring operations, when the handle is pressed to open the spring contact, placing the wiring functional area in the wire-in and wire-out states, the handle simultaneously moves the movable block in the circuit switching functional area, automatically disconnecting the circuit. This ensures the circuit is in an open-circuit state during wiring operations, guaranteeing the safety of the wiring personnel. This utility model achieves both circuit switching control and the opening / closing control of the elastic clip structure for wiring within the terminal block with a single handle, and both are controlled synchronously, making wiring operations more convenient and preventing the forgetting to disconnect the circuit during wiring, ensuring safe wiring work. Furthermore, it avoids the need for multiple control devices on the insulating body, making the terminal block structure more compact and increasing space utilization. Attached Figure Description
[0016] Figure 1 This is a perspective view of the present utility model;
[0017] Figure 2 This is the front view of the present invention;
[0018] Figure 3 This is a three-dimensional view of the structural principle of this utility model;
[0019] Figure 4 This is a front view illustrating the structural principle of this utility model;
[0020] Figure 5 This is a perspective view of the handle of this utility model;
[0021] Figure 6 This is a perspective view of the movable block of this utility model;
[0022] Figure 7 This is a schematic diagram showing the second and third terminals of this utility model in a disconnected state;
[0023] Figure 8 This is a schematic diagram showing the second and third terminals of this utility model in a conductive state. Detailed Implementation
[0024] Example: A terminal block with switching function includes an insulating body 1, a first terminal 2, a spring 3, and a handle 4. The insulating body 1 has a wiring cavity, and the side wall of the insulating body 1 also has an inlet hole 5 communicating with the wiring cavity. The conductive plate of the first terminal 2 is fixedly disposed in the wiring cavity. One end of the spring 3 is fixedly disposed in the wiring cavity, and the other end of the spring 3 can form an elastic clamping structure with the conductive plate of the first terminal 2. The wire inserted through the inlet hole 5 can be clamped between the other end of the spring 3 and the conductive plate, thereby conducting electricity with the first terminal 2. The handle 4 is mounted on the insulating body 1 and can move within a set range. One end of the handle 4 can drive the other end of the spring 3 to move away from the conductive plate as the handle 4 moves. The main body 1 is also fixedly installed with a second terminal 6 and a third terminal 7. The second terminal 6 and the third terminal 7 are spaced apart. The second terminal 6 is provided with a first elastic contact 8 and the third terminal 7 is provided with a second elastic contact 9. The first elastic contact 8 and the second elastic contact 9 can be in close contact and conduction in their natural state. The insulating main body 1 is also provided with a movable block 10. The handle 4 can drive the movable block 10 to move synchronously with it. The movable block 10 can make the first elastic contact 8 and the first elastic contact 8 be in a state of disengagement or maintain contact with each other by reciprocating with the handle 4. The first terminal 2, the second terminal 6 and the third terminal 7 are all formed with welding pins that extend out of the outside of the insulating main body 1.
[0025] The first terminal 2 of the terminal block has a conductive plate and a spring 3 forming an elastic clamping structure that clamps the conductor to achieve the wiring function. The first elastic contact 8 on the second terminal 6 and the second elastic contact 9 on the third terminal 7 contact or separate to achieve the circuit conduction and disconnection functions. When the operating handle 4 is moved, the handle 4 synchronously drives the other end of the spring 3 and the movable block 10 to move synchronously. That is, when the elastic clamping structure formed by the spring 3 and the conductive plate is in the open state, the movable block 10 separates the first elastic contact 8 and the second elastic contact 9. At this time, the circuit is in the open state, and the wire feeding and unfeeding operations can be safely performed. When the elastic clamping structure formed by the spring 3 and the conductive plate is in the closed state, the movable block 10 makes the first elastic contact 8 and the second elastic contact 9 contact. At this time, the circuit is in the conducting state. The circuit and the wire form a conductive circuit to achieve stable signal transmission. This structure can realize the synchronous operation of the wiring function area and the on / off function area of the terminal block through a single handle 4, which is convenient to operate, saves space, and ensures the safety of wiring operations.
[0026] The insulating body 1 also includes a reset elastic element, which provides an elastic reset force to the movable block 10. This elastic reset force enables the movable block 10 to move to its initial position, maintaining the first elastic contact 8 and the second elastic contact 9 in a conductive contact state. The reset elastic element provides a reset elastic force to the movable block 10, ensuring that when the wiring is completed and the handle 4 is released, both the handle 4 and the movable block 10 quickly reset, guaranteeing a stable conductive state for the circuit and ensuring stable signal transmission.
[0027] The movable block 10, with the reciprocating motion of the handle 4, can be inserted between the first elastic contact 8 and the first elastic contact 8 to isolate or separate the two from the contact surface of the first elastic contact 8 and keep them in contact.
[0028] The movable block 10 is inserted between the first elastic contact 8 and the second elastic contact 9, thereby separating the first elastic contact 8 and the second elastic contact 9 to achieve the disconnection of the two components. This structure is simple and can ensure that the first elastic contact 8 and the second elastic contact 9 maintain a stable open circuit state when they are in the disconnected state. In addition, the movable block 10 can also be connected to one of the first elastic contact 8 and the second elastic contact 9. By moving the movable block 10, the first elastic contact 8 or the second elastic contact 9 is elastically deformed, thereby separating the two components. This is an equivalent replacement structure that can be easily conceived by those skilled in the art based on this application and is within the scope of protection of this application.
[0029] The first elastic contact 8 on the second terminal 6 is an elastic cantilever structure extending inclined towards the third terminal 7, and the second elastic contact 9 on the third terminal 7 is an elastic cantilever structure extending inclined towards the second terminal 6. The free ends of the first elastic contact 8 and the second elastic contact 9 can be in close contact. The movable block 10 is located between the second terminal 6 and the third terminal 7. The movable block 10 can be installed in the insulating body 1 by sliding back and forth linearly along the direction parallel to the second terminal 6 and the third terminal 7 for a set distance. The movable block 10 is provided with a partition surface 12, and each partition surface is provided with a clearance hollow structure 13. The free ends of the first elastic contact 8 of the second terminal 6 and the second elastic contact 9 of the third terminal 7 elastically abut against the two sides of the partition surface 12 of the movable block 10, respectively. After the free ends of the first elastic contact 8 of the second terminal 6 and the second elastic contact 9 of the third terminal 7 slide into the clearance hollow structure 13 on the partition surface 12, they can be in close contact to form a conductor.
[0030] The first elastic contact 8 and the second elastic contact 9 adopt an elastic cantilever structure. When the movable block 10 slides back and forth, the free ends of the cantilever structures of the first elastic contact 8 and the second elastic contact 9 slide along the partition surface 12 on the movable block 10. When they slide to the avoidance hollow structure 13 on the partition surface, they come into contact with each other because there is no obstruction between them. The partition surface 12 is preferably formed with a guide slide structure for the free ends of the cantilever structures of the first elastic contact 8 and the second elastic contact 9 to slide, so as to prevent the free ends of the cantilever structures of the first elastic contact 8 and the second elastic contact 9 from tilting and shifting during the sliding process, which would affect the stable contact and conduction in the avoidance hollow structure 13.
[0031] The partition surface 12 of the movable block 10 connects to the avoidance hollow structure 13 through a chamfered surface with gradually decreasing thickness. The chamfered surface forms a guide to prevent it from getting stuck on the free end side of the cantilever structure of the first elastic contact member 8 and the second elastic contact member 9.
[0032] The first elastic contact 8 and the second elastic contact 9 have reverse bending structures formed at the free ends of their elastic cantilever structures. The first elastic contact 8 and the second elastic contact 9 are in contact and connected through the convex arc surfaces formed by the reverse bending structures. The arc surfaces formed at the free ends of the elastic cantilever structures by the reverse bending structures allow for smooth sliding on the partition surfaces 12 of the movable block 10. Furthermore, the free ends of the elastic cantilever structures of the first elastic contact 8 and the second elastic contact 9 form V-shaped openings that can accommodate and avoid the partition surfaces 12 of the movable block 10.
[0033] The insulating body 1 has a spring groove 14 inside, and the reset elastic element is a spring 11 inserted into the spring groove 14. One end of the movable block 10 along its sliding direction has a guide post 15. The guide post 15 can be inserted into the spring, and the end of the movable block 10 along its sliding direction can press against the spring, forcing the spring to undergo elastic deformation. When the movable block 10 slides back and forth, the guide post 15 is inserted into the spring and the spring groove 14, guiding the spring and preventing radial deformation of the elastic element.
[0034] The handle 4 is provided with a pressing rib 16, which abuts against the other end face of the movable block 10 along its sliding direction.
[0035] The insulating body 1 is further provided with a guide groove, and the movable block 10 is slidably inserted into the guide groove. The two ends of the movable block along its sliding direction are respectively stopped by the inner surfaces of the two ends of the guide groove along its extending direction. The guide groove can guide and limit the reciprocating sliding direction and sliding distance of the movable block 10.
[0036] The insulating body 1 has a handle 4 socket on its side wall. The other end of the handle 4 extends through the handle 4 socket to the outside of the wiring cavity of the insulating body 1 to form a pressing operation end 17. One end of the handle 4 is rotatably mounted on the inner side wall of the wiring cavity through a hinge shaft 18. A slot 19 is provided on one side wall of the handle 4. A protrusion is provided on the other side wall of the spring 3. The protrusion on the other side wall of the spring 3 is inserted into the slot 19 on one side wall of the handle 4 to connect the other end of the spring 3 with one side wall of the handle 4. Pressing the pressing operation end 17 of the handle 4 can make the handle 4 rotate around the hinge shaft 18 at one end, thereby causing the other end of the spring 3 to swing elastically. The two side walls of the handle 4 along its swing direction are respectively stopped on the inner side of the handle 4 socket. Press the handle 4, and the handle 4 swings around its hinge axis 18 at a certain angle. At the same time, the handle 4 drives the other end of the spring 3 to swing and the sliding block 10 to slide. The swing angle of the handle 4 is limited by the size of the handle 4 socket to prevent the swing angle from being too large and damaging the spring 3.
Claims
1. A terminal block with switching function, comprising an insulating body (1), a first terminal (2), a spring (3), and a handle (4), wherein the insulating body is provided with a wiring cavity, and the side wall of the insulating body is also provided with an inlet hole (5) communicating with the wiring cavity; the conductive plate of the first terminal is fixedly disposed in the wiring cavity; one end of the spring is fixedly disposed in the wiring cavity; the other end of the spring can form an elastic clamping structure with the conductive plate of the first terminal; a wire inserted through the inlet hole can be clamped between the other end of the spring and the conductive plate, thereby communicating with the first terminal; the handle is mounted on the insulating body and can move within a set range, and one end of the handle can drive the other end of the spring to move away from the conductive plate as the handle moves, characterized in that: The insulating body is also fixedly installed with a second terminal (6) and a third terminal (7), which are spaced apart. The second terminal is provided with a first elastic contact (8), and the third terminal is provided with a second elastic contact (9). The first elastic contact and the second elastic contact can be in close contact and conduction in their natural state. The insulating body is also provided with a movable block (10), which can be moved. The handle can drive the movable block to move synchronously with it. The movable block can make the first elastic contact and the first elastic contact be in a state of disengagement or in a state of contact as the handle moves back and forth. The first terminal, the second terminal and the third terminal are all provided with welding pins that extend out of the outer side of the insulating body.
2. The terminal block with switching function according to claim 1, characterized in that: The insulating body is also provided with a reset elastic element, which provides an elastic reset force to the movable block. The elastic reset force enables the movable block to move to the initial position that keeps the first elastic contact and the second elastic contact in a contact and conductive state.
3. The terminal block with switching function according to claim 1 or 2, characterized in that: The movable block, moving back and forth with the handle, can be inserted between the first elastic contact and the first elastic contact to isolate or separate them from the contact surfaces of the first elastic contact and keep them in contact.
4. The terminal block with switching function according to claim 3, characterized in that: The first elastic contact on the second terminal is an elastic cantilever structure extending inclined toward the third terminal, and the second elastic contact on the third terminal is an elastic cantilever structure extending inclined toward the second terminal. The free ends of the first elastic contact and the second elastic contact can be in close contact. The movable block is located between the second terminal and the third terminal. The movable block can be installed in the insulating body by sliding back and forth linearly along the direction parallel to the second terminal and the third terminal for a set distance. The movable block is provided with a partition surface (12), and a clearance hollow structure (13) is provided on the partition surface. The free ends of the first elastic contact of the second terminal and the second elastic contact of the third terminal are elastically pressed against the two sides of the partition surface of the movable block, respectively. After the free ends of the first elastic contact of the second terminal and the second elastic contact of the third terminal slide into the clearance hollow structure on the partition surface, they can be in close contact to form a conduction.
5. The terminal block with switching function according to claim 4, characterized in that: The partition surface of the movable block is connected to the hollow structure through a chamfered surface with gradually decreasing thickness.
6. The terminal block with switching function according to claim 4, characterized in that: The first elastic contact and the second elastic contact have reverse bending structures formed at the free ends of their elastic cantilever structures, and the first elastic contact and the second elastic contact are in contact and connected through the convex arc surfaces formed by the reverse bending structures.
7. The terminal block with switching function according to claim 2, characterized in that: The insulating body is provided with a spring groove (14), the reset elastic element is a spring (11) inserted in the spring groove, and the movable block is provided with a guide post (15) at one end along its sliding direction. The guide post can be inserted into the spring, and the movable block at one end along its sliding direction can press against the spring to force the spring to undergo elastic deformation.
8. The terminal block with switching function according to claim 7, characterized in that: The handle is provided with a pressing rib (16), which abuts against the other end face of the movable block along its sliding direction.
9. The terminal block with switching function according to claim 1, characterized in that: The insulating body is also provided with a guide groove, and the movable block is slidably inserted into the guide groove. The two ends of the movable slider along its sliding direction are respectively stopped on the inner side surfaces of the two ends of the guide groove along its extension direction.
10. The terminal block with switching function according to claim 1, characterized in that: The insulating body has a handle socket on its side wall. The other end of the handle extends through the handle socket to the outside of the wiring cavity of the insulating body to form a pressing operation end (17). One end of the handle is rotatably mounted on the inner side wall of the wiring cavity through a hinge shaft (18). A slot (19) is provided on the side wall of one end of the handle. A protrusion is provided on the side wall of the other end of the spring. The protrusion on the side wall of the other end of the spring is inserted into the slot on the side wall of one end of the handle to realize the connection between the other end of the spring and the side wall of one end of the handle. Pressing the pressing operation end of the handle can make the handle rotate around the hinge shaft of one end, thereby causing the other end of the spring to swing elastically. The two sides of the handle along its swing direction are respectively stopped on the inner side of the handle socket.