Terminal block

Abstract

The utility model provides a wiring terminal strip, and relates to the technical field of wiring terminal assembly, the wiring terminal strip comprises a plurality of terminal frames assembled into the terminal strip, the plurality of terminal frames are assembled with each other by means of an assembly member, the assembly member comprises an upper pressing sheet and a lower pressing sheet, wherein the upper pressing sheet and the lower pressing sheet are clamped on the upper side and the lower side of two terminal frames needing to be combined together; and the rod piece passes through the upper pressing piece and the lower pressing piece and extrudes the upper pressing piece at the upper end of the terminal frame by means of the locking piece. According to the utility model, when a plurality of terminal frames are combined, the upper pressing sheets above are mutually staggered and overlapped up and down, and when the number of the terminal frames needs to be reduced, the corresponding terminal frames can be separated by only dismounting the locking pieces needing to be reduced, so that the flexibility of the terminal strip is improved, and the number of the terminal frames can be rapidly increased or decreased according to requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of wiring terminal assembly, in particular to a wiring terminal block. Background Art

[0002] A terminal block is a combination of terminals used to connect devices inside and outside the panel in power electronic wiring. The function of the terminal block is to connect the circuits of the devices inside and outside the panel, and play the role of signal (current and voltage) transmission.

[0003] The inventors found in their daily work that the number of terminals constituting a terminal block is fixed, while some places often require a large number of terminals. This results in some terminals being unused when multiple terminal blocks are used, and the number of terminals cannot be flexibly adjusted according to actual needs. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a terminal block.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a terminal block, including terminal frames assembled into a terminal block, wherein multiple terminal frames are assembled with the help of assembling components, and the assembling components include: an upper pressing plate and a lower pressing plate, wherein the upper pressing plate and the lower pressing plate are clamped on the upper and lower sides of two terminal frames that need to be combined together; a rod, wherein the rod passes through the upper pressing plate and the lower pressing plate and squeezes the upper pressing plate to the upper end of the terminal frame with the help of a locking member.

[0006] The effect achieved by the above components is: the wires are connected to the wiring ports at the two ends of the terminal frame, wherein the current in the wires passes through the wiring ports and the fuse and flows out from the wire of the other wiring port. When the load is too large, the fuse blows to ensure the safety of the circuit. When the two terminal frames need to be assembled, the two terminal frames are brought close to each other, and then the upper pressing piece and the lower pressing piece are used to clamp the two terminal frames. The upper pressing piece is pressed on the surface of the rod with the help of the locking piece, so that the two terminal frames can be quickly assembled. When multiple terminal frames are combined, the upper pressing pieces are staggered and overlapped with each other. When the terminal frames need to be reduced, only the locking piece of the part to be reduced is removed to separate the corresponding terminal frames.

[0007] Preferably, an upper supporting piece is fixedly connected to one side of the terminal frame, and a lower supporting piece is fixedly connected to the other side of the terminal frame. When the two terminal frames are combined, the upper supporting piece on one side of the terminal frame presses on the lower supporting piece on the other side of the terminal frame.

[0008] Preferably, a limiting protrusion is provided below the upper supporting piece, and a limiting groove is provided above the lower supporting piece. When the two terminal frames are combined, the limiting protrusion of the upper supporting piece of one terminal frame is stuck in the limiting groove of the lower supporting piece of the other terminal frame.

[0009] The effect achieved by the above components is that the two terminal frames to be assembled are clamped in the limiting groove on the lower supporting plate by means of the limiting protrusion under the upper supporting plate, thereby ensuring that the positions of the two terminal frames are relatively fixed when the upper pressing plate and the lower pressing plate clamp the terminal frames.

[0010] Preferably, the locking member includes a first ring and a second ring, wherein the first ring and the second ring are fixedly connected by a spring, the first ring and the second ring are both slidably sleeved on the surface of the rod, and a hook is fixedly connected to the inside of the second ring, wherein the hook is elastic and bends upward.

[0011] The effect achieved by the above components is: pressing the first ring toward the second ring, wherein the hook is an elastic component and the first ring can slide downward along the rod (when there is a tendency to slide upward, the tip of the hook rests on the surface of the rod to prevent the first ring from sliding up. When it needs to be removed, it is only necessary to use a hook-shaped steel wire to extend into the first ring and hook the hook to remove it). Under the push of the spring force, the second ring squeezes the upper pressing plate, thereby ensuring that the upper pressing plate cooperates with the lower pressing plate to clamp the terminal frame.

[0012] Preferably, the surface of the rod is covered with a rubber sleeve.

[0013] The effect achieved by the above components is that when there is a tendency to slide upward, the tip of the hook claw is stuck in the rubber sleeve to prevent it from sliding upward.

[0014] Preferably, wiring ports are provided at both ends of the terminal frame, an assembly groove is opened at the upper end of the terminal frame, a fuse is installed inside the assembly groove, wherein the two ends of the fuse are electrically connected to the wiring ports at the two ends of the terminal frame, an arc-reducing component is provided at the wiring port, the wire passes through the arc-reducing component and is inserted into the wiring port for wiring, and the generated arc needs to pass through the arc-reducing component before it can burst out.

[0015] Preferably, the arc-reducing component includes a ceramic sleeve, one end of which is fixedly connected to a mounting cylinder, the mounting cylinder is inserted into the wiring port, and grooves are evenly formed on the surface of the ceramic sleeve.

[0016] The effect achieved by the above components is: when an arc appears at the connection port, the arc enters the ceramic sleeve, and the arc needs to pass through the ceramic sleeve to be ejected, shortening the arc ejection length and reducing the impact of the arc. Since grooves are evenly arranged on the surface of the ceramic sleeve, the arc can be diverted to reduce the impact of the arc.

[0017] Compared with the prior art, the advantages and positive effects of the present invention are:

[0018] In the present invention, when two terminal frames need to be assembled, the two terminal frames are brought close to each other, and then the upper pressing piece and the lower pressing piece are used to clamp the two terminal frames. The upper pressing piece is pressed on the surface of the rod with the help of the locking piece, so that the two terminal frames can be quickly assembled. When multiple terminal frames are combined, the upper pressing pieces are overlapped with each other. When the terminal frames need to be reduced, only the locking piece of the part to be reduced is removed to separate the corresponding terminal frames, which improves the flexibility of the terminal row and can quickly increase or decrease the terminal frames according to needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The present invention provides a three-dimensional structural diagram of a terminal block;

[0020] Figure 2 The utility model proposes a terminal block Figure 1 Bottom diagram of ;

[0021] Figure 3 The utility model provides a vertical cross-sectional schematic diagram of a locking member in a terminal block;

[0022] Figure 4 The utility model provides a schematic diagram of a single terminal frame in a terminal block;

[0023] Figure 5 The utility model proposes a terminal block Figure 4 Schematic diagram from another angle;

[0024] Figure 6 The utility model provides a schematic diagram of an arc-reducing component in a terminal block.

[0025] Legend: 1. Terminal frame; 2. Assembly groove; 3. Fuse; 4. Assembly component; 41. Upper pressure plate; 42. Rod; 43. Locking member; 431. First ring; 432. Second ring; 433. Spring; 434. Hook; 44. Lower support plate; 45. Upper support plate; 46. Lower pressure plate; 5. Arc-reducing component; 51. Ceramic sleeve; 52. Mounting cylinder; 53. Groove. DETAILED DESCRIPTION

[0026] Example 1, as Figure 1-6As shown, a terminal block includes a terminal frame 1 assembled into a terminal block, wherein a plurality of terminal frames 1 are assembled with each other by means of an assembling member 4, and the assembling member 4 includes: an upper pressing piece 41 and a lower pressing piece 46, wherein the upper pressing piece 41 and the lower pressing piece 46 are clamped on the upper and lower sides of two terminal frames 1 that need to be combined together; a rod 42, wherein the rod 42 passes through the upper pressing piece 41 and the lower pressing piece 46 and squeezes the upper pressing piece 41 on the upper end of the terminal frame 1 with the help of a locking member 43, and connects the wire to the wiring port at the two ends of the terminal frame 1, wherein the current in the wire passes through the wiring port through the fuse 3 and flows out from the other wiring port. When the load is too large, the fuse 3 melts to ensure the safety of the circuit. When two terminal frames 1 need to be assembled, the two terminal frames 1 are connected to each other. When the two terminal frames 1 are assembled, the upper pressing piece 41 is pressed against the surface of the rod 42 with the help of the locking piece 43, and the two terminal frames 1 can be quickly assembled. When multiple terminal frames 1 are assembled, the upper pressing pieces 41 are overlapped with each other up and down. When the terminal frame 1 needs to be reduced, only the locking piece 43 of the part that needs to be reduced is removed to separate the corresponding terminal frame 1. One side of the terminal frame 1 is fixedly connected to the upper supporting piece 45, and the other side of the terminal frame 1 is fixedly connected to the lower supporting piece 44. When the two terminal frames 1 are assembled, the upper supporting piece 45 on one side of one terminal frame 1 is pressed on the lower supporting piece 44 on the other side of the other terminal frame 1. A limiting protrusion is provided below the upper supporting piece 45, and a lower supporting piece 44 is opened above. A limiting groove 53 is provided. When the two terminal frames 1 are combined, the limiting protrusion of the upper support piece 45 of one terminal frame 1 is stuck in the limiting groove 53 of the lower support piece 44 of the other terminal frame 1. The two terminal frames 1 to be assembled are stuck in the limiting groove 53 on the lower support piece 46 with the help of the limiting protrusion under the upper support piece 45, thereby ensuring that the positions of the two terminal frames 1 are relatively fixed when the upper pressing piece 41 and the lower pressing piece 46 clamp the terminal frame 1. The locking member 43 includes a first ring 431 and a second ring 432, wherein the first ring 431 and the second ring 432 are fixedly connected by a spring 433, and the first ring 431 and the second ring 432 are both slidably sleeved on the surface of the rod 42, and the interior of the second ring 432 is fixedly connected with a hook claw 434, which The middle hook 434 is elastic and bends upward, pressing the first ring 431 toward the second ring 432, wherein the hook 434 is an elastic component and the first ring 431 can slide downward along the rod 42 (when there is a tendency to slide upward, the tip of the hook 434 rests on the surface of the rod 42 to prevent the first ring 431 from sliding up. When it needs to be removed, it is only necessary to use a hook-shaped steel wire to extend into the first ring 431 to hook the hook 434 for removal). Under the elastic force of the spring 433, the second ring 432 squeezes the upper pressing piece 41, thereby ensuring that the upper pressing piece 41 cooperates with the lower pressing piece 46 to clamp the terminal frame 1. The surface of the rod 42 is covered with a rubber sleeve. When there is a tendency to slide upward, the tip of the hook 434 is stuck in the rubber sleeve to prevent it from sliding up. Wiring ports are provided at both ends of the terminal frame 1.The upper end of the terminal frame 1 is provided with an assembly groove 2, and a fuse 3 is installed inside the assembly groove 2. The two ends of the fuse 3 are electrically connected to the wiring ports of the two ends of the terminal frame 1. An arc-reducing component 5 is provided at the wiring port. The wire passes through the arc-reducing component 5 and is inserted into the wiring port for wiring. The generated arc needs to pass through the arc-reducing component 5 before it can burst out. The arc-reducing component 5 includes a ceramic sleeve 51. One end of the ceramic sleeve 51 is fixedly connected to a mounting cylinder 52. The mounting cylinder 52 is inserted into the wiring port. The surface of the ceramic sleeve 51 is evenly provided with grooves 53. When an arc occurs at the wiring port, the arc enters the ceramic sleeve 51 and needs to pass through the ceramic sleeve 51 to be ejected, shortening the arc ejection length and reducing the arc impact. Since the ceramic sleeve 51 surface is evenly provided with grooves 53, the arc can be diverted to reduce the arc impact.

[0027] The working principle is to connect the wires to the wiring ports of the two ends of the terminal frame 1, wherein the current in the wires flows through the wiring ports and the fuse 3 and out from the wire of the other wiring port. When the load is too large, the fuse 3 melts to ensure the safety of the circuit. When the two terminal frames 1 need to be assembled, the two terminal frames 1 are brought close to each other, and then the upper pressing piece 41 and the lower pressing piece 46 are used to clamp the two terminal frames 1, and the upper pressing piece 41 is pressed on the surface of the rod 42 with the help of the locking piece 43, so that the two terminal frames 1 can be quickly assembled. When multiple terminal frames 1 are combined, the upper upper pressing pieces 41 are staggered and overlapped with each other. When the terminal frame 1 needs to be reduced, only the locking piece 43 of the part to be reduced is removed to separate the corresponding terminal frame 1. The two terminal frames 1 that need to be assembled are clamped in the limiting groove 53 on the lower supporting piece 46 with the help of the limiting protrusion below the upper supporting piece 45, thereby ensuring that the upper pressing piece 41 and the lower pressing piece 46 clamp the terminal frame 1. When the positions of the two terminal frames 1 are relatively fixed, the first ring 431 is pressed against the second ring 432, wherein the hook claw 434 is an elastic component and the first ring 431 can slide downward along the rod 42 (when there is a tendency to slide upward, the tip of the hook claw 434 rests on the surface of the rod 42 to prevent the first ring 431 from sliding up. When it needs to be removed, it is only necessary to use a hook-shaped steel wire to extend into the first ring 431 to hook the hook claw 434 for removal). Under the elastic force of the spring 433, the second ring 432 squeezes the upper pressing piece 41, thereby ensuring that the upper pressing piece 41 cooperates with the lower pressing piece 46 to clamp the terminal frame 1. When there is a tendency to slide upward, the tip of the hook claw 434 is stuck in the rubber sleeve to prevent sliding up. When an arc occurs at the wiring port, the arc enters the ceramic sleeve 51, and the arc needs to pass through the ceramic sleeve 51 to be emitted, shortening the arc emission length and reducing the impact of the arc. Since the surface of the ceramic sleeve 51 is evenly provided with grooves 53, the arc can be diverted to reduce the impact of the arc.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification of the above embodiment based on the technical essence of the present invention that does not deviate from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A terminal block comprising a terminal frame (1) assembled into the terminal block, characterized in that: The plurality of terminal frames (1) are assembled with each other by means of an assembling member (4), wherein the assembling member (4) comprises: an upper pressing plate (41) and a lower pressing plate (46), wherein the upper pressing plate (41) and the lower pressing plate (46) are clamped on the upper and lower sides of two terminal frames (1) to be assembled together; and a rod (42), wherein the rod (42) passes through the upper pressing plate (41) and the lower pressing plate (46) and squeezes the upper pressing plate (41) onto the upper end of the terminal frame (1) by means of a locking member (43).

2. The terminal block according to claim 1, wherein: An upper supporting piece (45) is fixedly connected to one side of the terminal frame (1), and a lower supporting piece (44) is fixedly connected to the other side of the terminal frame (1); when the two terminal frames (1) are combined, the upper supporting piece (45) on one side of one terminal frame (1) is pressed on the lower supporting piece (44) on the other side of the terminal frame (1).

3. The terminal block according to claim 2, wherein: A limiting protrusion is provided below the upper supporting piece (45), and a limiting groove is provided above the lower supporting piece (44). When two terminal frames (1) are combined, the limiting protrusion of the upper supporting piece of one terminal frame (1) is clamped in the limiting groove of the lower supporting piece (44) of the other terminal frame (1).

4. The terminal block according to claim 1, wherein: The locking member (43) comprises a first ring (431) and a second ring (432), wherein the first ring (431) and the second ring (432) are fixedly connected via a spring (433), the first ring (431) and the second ring (432) are both slidably sleeved on the surface of the rod (42), and a hook (434) is fixedly connected to the interior of the second ring (432), wherein the hook (434) is elastic and bends upward.

5. The terminal block according to claim 4, characterized in that: The surface of the rod (42) is covered with a rubber sleeve.

6. The terminal block according to claim 1, wherein: The terminal frame (1) is provided with connection ports at both ends, an assembly groove (2) is provided at the upper end of the terminal frame (1), a fuse (3) is provided inside the assembly groove (2), wherein the two ends of the fuse (3) are electrically connected to the connection ports at the two ends of the terminal frame (1), an arc-reducing component (5) is provided at the connection port, and a wire passes through the arc-reducing component (5) and is inserted into the connection port for connection, and the generated arc needs to pass through the arc-reducing component before it can burst out.

7. The terminal block according to claim 6, wherein: The arc-reducing component (5) comprises a ceramic sleeve (51), one end of which is fixedly connected to a mounting tube (52), the mounting tube (52) being inserted into a wiring port, and a surface of the ceramic sleeve (51) being evenly provided with grooves (53).

Images