A cable terminal block

Abstract

The utility model discloses a cable wiring terminal seat, including line store seat body, screw and clamping electric conductor, be equipped with the bolt mouth that is matched with screw on line store seat body, and screw thread cooperation bolt mouth opposite line store seat body telescopic activity setting, clamping electric conductor is S -shaped lower end setting pressure plate and inserts line store seat body, and the upper end is provided with the clamping part that is matched with the screw head of screw, and the clamping part includes the tool hole that is less than the diameter of screw head and the slot that is greater than the threaded rod part of screw and less than the diameter of screw head, and the threaded rod part front end of screw is located on the upper end face setting of pressure plate, the utility model discloses a cable wiring terminal seat, realizes optional two kinds of mode drive and clamps the cable of lower wiring seat to line, and further sets up the wire -blocking structure, no matter two kinds of mode can avoid cable insertion error, avoid the problem of poor contact caused by error crimping, and the wiring seat structure is simple, and production and assembly are convenient, and the adaptability is strong.

Description

Technical Field

[0001] This utility model relates to the field of terminal block technology, specifically to a cable terminal block. Background Technology

[0002] A terminal block is a common circuit adapter widely used in the electronics industry. Its function is to secure cables as terminals and allow electrical conduction via conductive plates on the terminal block. Terminal blocks are generally used to connect wires within electrical components such as circuit breakers and disconnect switches. The simplest terminal blocks commonly found on the market include those with a screw-driven cable tray and those with a screw-driven clamping plate. These two different designs result in some structural differences, but both ultimately involve the clamping plate and cable tray coming close together to form a crimped connection, clamping and conducting the wires. Utility Model Content

[0003] In view of the existing technology, the purpose of this utility model is to provide a cable terminal block with a simple structure and convenient production. This terminal block can be used in two different crimping states, has high adaptability, and is convenient for production and inventory.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a cable terminal block, including a cable compartment body, a screw, and a clamping conductor. The cable compartment body is provided with a bolt hole that matches the screw. The screw thread engages with the bolt hole and is movably slidable relative to the cable compartment body. The clamping conductor is S-shaped with a pressure plate extending into the cable compartment body at its lower end and a snap-fit ​​part that matches the screw head at its upper end. The snap-fit ​​part includes a tool hole smaller than the screw head diameter and a notch larger than the screw threaded shank but smaller than the screw head diameter. The front end of the screw threaded shank abuts against the upper surface of the pressure plate.

[0005] Furthermore, a wire-blocking plate is provided between the clamping part of the electrical conductor and the pressure plate. The pressure plate is I-shaped, with its middle width being smaller than the width of the wire compartment seat and its two ends being wider than the width of the wire compartment seat.

[0006] Furthermore, the cable tray body is composed of multiple bends in a long strip plate, with a retaining plate and an insert plate respectively at both ends, and a retaining groove and an insert respectively at the opposite end to interlock in a ring shape.

[0007] Furthermore, a wire baffle extends from the lower side of the wire compartment seat.

[0008] Furthermore, the bottom surface of the cable tray seat and the lower side of the pressure plate are both provided with anti-slip textures.

[0009] Beneficial effects: The cable terminal block of this utility model optimizes the structure by bending the cable compartment body, and uses screws and a clamping conductor to achieve cable clamping in two selectable ways. Furthermore, a wire-blocking structure is set up to prevent incorrect cable insertion and poor contact caused by incorrect crimping, regardless of which method is used. The cable terminal block of this utility model has a simple structure, is easy to manufacture and assemble, has strong adaptability, and is easy to use. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the terminal block structure of this utility model.

[0011] Figure 2 This is a schematic diagram of the wire housing and clamped conductor structure in this embodiment.

[0012] Figure 3 This is a schematic diagram of the clamping connection between the electrical conductor and the screw in this embodiment.

[0013] Figure 4 This is a diagram showing the complete assembly of the terminal block in use according to this embodiment.

[0014] Figure 5 This is a schematic diagram of the structure of the clamp-free electrical conductor used in this embodiment.

[0015] Reference numerals: 1. Cable compartment seat; 11. Bolt hole; 12. Cable baffle; 13. Clamping plate; 14. Insert plate; 15. Slot; 16. Slot; 2. Screw; 21. Screw head; 22. Tool hole; 23. Threaded rod; 24. Notch; 3. Clamping conductor; 31. Pressure plate; 32. Clamping part; 33. Cable baffle; 38. Anti-slip texture. Detailed Implementation

[0016] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, where there is no conflict, the embodiments and features described in these embodiments can be combined with each other. Example

[0017] like Figure 1-5The cable terminal block shown includes a cable compartment body 1, a screw 2, and a clamping conductor 3. The cable compartment body 1 is provided with a bolt hole 11 that matches the screw 2. The screw 2 is threaded and movably connected to the bolt hole 11 relative to the cable compartment body 1. The clamping conductor 3 is S-shaped with a pressure plate 31 at its lower end that extends into the cable compartment body 1. The upper end is provided with a snap-fit ​​part 32 that matches the screw head 21 of the screw 2. The snap-fit ​​part 32 includes a tool hole 22 smaller than the diameter of the screw head 21 and a notch 24 larger than the threaded shank 23 of the screw 2 but smaller than the diameter of the screw head 21. The front end of the threaded shank 23 of the screw 2 abuts against the upper surface of the pressure plate 31.

[0018] As described above, the cable terminal block in this embodiment is installed inside the disconnect switch. Figure 4 As shown, at this time, the conductive element plate of the disconnecting switch extends into the wire hole inside the wire compartment seat 1, is located on the bottom surface of the wire compartment seat 1, and maintains a fixed state relative to the wire compartment seat 1 and the conductive element plate of the disconnecting switch housing. When the metal end of the external cable extends into the wiring slot of the disconnecting switch, the user inserts a screwdriver from the tool slot on the disconnecting switch housing and rotates the screw 2. Based on the thread engagement between the screw 2 and the bolt hole 11 on the wire compartment seat 1, and the wire compartment seat 1 remains fixed, the screw 2 moves towards the wire compartment seat 1 with the thread engagement. At the same time, based on the front end of the threaded rod 23 of the screw 2 pressing against the pressure plate 31, the movement of the screw 2 will cause the pressure plate 31 below the clamping conductor 3 to continuously approach the conductive element plate and cooperate with it to clamp the external cable. Conversely, by rotating the screw 2 in the opposite direction, the screw head 21 of the screw 2 is stuck in the locking part 32. Thus, after the reverse rotation, the outwardly protruding screw 2 will move the clamping conductor 3 upward, away from the conductive element plate, and release the clamping of the external cable.

[0019] like Figure 1 and Figure 2 As shown, in this embodiment, a wire-blocking plate 33 is provided between the clamping part 32 of the clamping conductor 3 and the pressure plate 31. The pressure plate 31 is I-shaped, with its middle width being smaller than the width of the wire compartment base 1, and its two ends being wider than the width of the wire compartment base 1. Figure 3 As shown, in order to enable the screw head 21 to be snapped into the snap-fit ​​part 32, the relative dimensions of the pressure plate 31 and the wire compartment seat 1 should be designed as follows: Figure 3 As shown, the pressure plate 31 can be flipped within the online storage unit 1, such as... Figure 3 As shown, the snap-fit ​​part 32 in this embodiment has a notch 24. When assembling the terminal block, the screw 2 is first threaded onto the cable tray seat 1, then the pressure plate 31 is inserted laterally into the cable tray seat 1, and then rotated back to the center position. Figure 3 In the state shown, while returning to the center position, the screw head 21 of screw 2 will also engage with the locking part 32, forming a shape as shown. Figure 1 The device is shown in the installation and usage state, and can then be placed into the disconnector switch housing.

[0020] As a further setting of the above scheme, such as Figure 2 As shown, the wire compartment seat 1 in this embodiment includes a long strip of plate that is first stamped to remove excess material, then pre-pressed to form a bending seam, and then bent through multiple bends (see the simplified process of conventional machining equipment, such as punch presses and presses). Further, as... Figure 1 and Figure 2 As shown, in this embodiment, the raw material of the wire hopper seat 1, after being punched, has a retaining plate 13 and an insert plate 14 at each end, and a retaining groove 15 and a slot 16 at the opposite end, which interlock to form a ring. That is, after the long strip of raw material of the wire hopper seat 1 is punched, one end has a retaining plate 13 and a slot 16, and the other end has an insert plate 14 and a retaining groove 15. After multiple near 90° bends, the two ends are stacked together, and the retaining plate 13 is bent and inserted into the retaining groove 15, and the insert plate 14 is inserted into the slot 16 to form a ring. Figure 2 The finished product of the wire compartment base 1 is shown.

[0021] Furthermore, a wire baffle 12 extends from the lower side of the wire compartment seat 1. It is worth noting that both the wire baffle 33 clamping the conductor 3 and the wire baffle 12 set on the lower side of the wire compartment seat 1 have the ultimate purpose of ensuring that, during use, whether the rotation of the screw 2 drives the wire compartment seat 1 to move relative to the wire slot of the isolating switch housing, or the rotation of the screw 2 drives the movement of the conductor 3, the wire baffle 12 and the wire baffle 33 can form a baffle structure at the wire slot after movement to prevent incorrect cable insertion. This avoids gaps in the cable insertion due to improper operation, which would affect the full contact between the cable and the conductive component plate.

[0022] Furthermore, it is worth noting that the cable terminal block structure in this embodiment can also adopt, for example... Figure 5 The clamping conductor 3 is removed, and the conductive element plate is placed on the side of the wire hole inside the wire compartment 1, closer to the screw 2. The conductive element plate is fixed and restricted by the isolating switch, thus blocking the extension and retraction of the screw 2. Therefore, with the screw 2 unable to extend or retract axially, the threaded drive of the wire compartment 1 moves. Figure 4 In the state shown, the conductive element plate is set at the bottom of the wire hole inside the online storage unit 1, or further, the conductive plate is directly left out during the punching of the online storage unit 1 for direct or electrical connection with the conductive element plate.

[0023] As described in the two embodiments above, the terminal block in this embodiment is equipped with two modes: the screw 2 drives the cable tray 1 to move or clamps the conductor 3 to move. This is to accommodate the usage requirements of devices and components such as disconnect switches that require external power cables. Figure 4 In the state shown, rotating screw 2 with the screwdriver will cause it to rise and fall, and Figure 5 The structure shown not only eliminates the need for clamping the electrical conductor 3, but also ensures that the screw 2 does not expand or contract relative to the housing of the device component, thus meeting the product's usage requirements.

[0024] In summary, the structural design of the cable tray base 1, screw 2, and clamping conductor 3 in this embodiment is not only convenient for production and processing, but also flexible in use. Different usage schemes can be adopted according to the design of the matching housing, and the optimized structure makes it universally compatible and reduces the production inventory of the terminal block.

[0025] As a further feature of the above solution, the bottom surface of the cable tray 1 and the lower side surface of the pressure plate 31 are both provided with anti-slip textures 38.

[0026] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of this utility model and its equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A cable terminal block, characterized in that: The device includes a cable tray seat (1), a screw (2), and a clamping conductor (3). The cable tray seat (1) is provided with a bolt hole (11) that matches the screw (2). The screw (2) is threaded and movably connected to the bolt hole (11) relative to the cable tray seat (1). The clamping conductor (3) is S-shaped and has a pressure plate (31) at its lower end that extends into the cable tray seat (1). The upper end is provided with a snap-fit ​​part (32) that matches the screw head (21) of the screw (2). The snap-fit ​​part (32) includes a tool hole (22) smaller than the diameter of the screw head (21) and a notch (24) larger than the diameter of the screw (2) and smaller than the diameter of the screw head (21). The front end of the screw (2) is abutted against the upper surface of the pressure plate (31).

2. The cable terminal block according to claim 1, characterized in that: A wire baffle (33) is provided between the snap-fit ​​part (32) of the clamping conductor (3) and the pressure plate (31). The pressure plate (31) is I-shaped, with its middle width being smaller than the width of the wire compartment seat (1) and its two ends being wider than the width of the wire compartment seat (1).

3. A cable terminal block according to claim 1, characterized in that: The cable tray seat (1) is composed of multiple bends in a long strip plate. At its two ends, a card plate (13) and a insert plate (14) are respectively provided, and at the opposite ends, a card slot (15) and a slot (16) are respectively provided, which are interlocked to form a ring.

4. A cable terminal block according to claim 1, characterized in that: A wire baffle (12) is also provided on the lower side of the wire compartment seat (1).

5. A cable terminal block according to claim 1, characterized in that: The bottom surface of the cable tray seat (1) and the lower side surface of the pressure plate (31) are both provided with anti-slip texture (38).

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