Fence type wiring terminal

Abstract

The technical problem to be solved by the utility model is to provide the fence type wiring terminal which can effectively fix a thin wire, avoid the potential safety hazards of loosening and slipping of the thin wire, effectively increase the creepage distance and improve the electrical safety performance. The fence type wiring terminal comprises an insulating shell, wherein the insulating shell is divided into a plurality of independent wiring grooves through a plurality of partition plates; a conductive piece is arranged in each wiring groove; the conductive piece comprises a top piece, the front and rear ends of the top piece are respectively bent to form a first side piece and a second side piece, the lower end of the second side piece is bent forwards to form a connecting piece, the right side of the front end of the connecting piece is bent to form a pin, and the bottom of the wiring groove is provided with a through hole, a bolt and a wire pressing plate; the bending direction of the pin is changed, and the gap between the wire pressing plate and the bending area is located on the non-wiring side, so that the wire pressing plate can effectively and fully press the thin wire; and the electric creepage distance is increased under the same spacing size.

Description

Technical Field

[0001] This utility model relates to the field of electronic components technology, specifically to a fence-type terminal block. Background Technology

[0002] Fence-type terminal blocks are commonly used components in the electrical field. Due to their compact structure, convenient wiring, and low cost, they are widely used for wire connections in electrical control cabinets, PCB boards, and other applications. Existing fence-type terminal blocks typically include an insulating housing, a conductive component inside the housing, and screws for clamping the wires. Their working principle is: tightening the screw pushes a metal clamping plate downwards, pressing the wire against the conductive component's connection platform, thus achieving an electrical connection. The fence-type terminal block connects to the other half of the terminal block via pins. Due to the presence of these pins, the bent area of ​​the conductive component in existing fence-type terminal blocks is located on the connection side, and there is a gap between the metal clamping plate and the bent area. When connecting thin wires with small cross-sectional areas (small wires), existing fence-type terminal blocks have certain drawbacks. The gap between the metal clamping plate and the bent area of ​​the conductive component is too large relative to the thin wire. When the wire is in the gap area, it cannot be effectively and fully clamped. When tightening the screw, the thin wire is prone to loosening and slipping, leading to unreliable connections and potential safety hazards. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a fence-type terminal block, which can effectively fix thin wires and avoid the safety hazards of loosening and slippage. It can also effectively increase the creepage distance and improve electrical safety performance.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a fence-type terminal block includes an insulating shell, and the insulating shell is divided into multiple independent wiring slots by multiple partitions;

[0005] A first support plate is provided on the left side wall of each wiring slot, and a second support plate is provided on the right side wall of each wiring slot.

[0006] Conductive components are provided at the upper ends of the first support plate and the second support plate;

[0007] The conductive component includes a top plate, with its left and right ends located at the upper ends of the first support plate and the second support plate, respectively.

[0008] The front end of the top piece is bent to form a first side piece, and the rear end of the top piece is bent to form a second side piece.

[0009] The lower end of the second side piece is bent forward with a connecting piece, which is perpendicular to the second side piece.

[0010] The front right side of the connecting piece is bent and has pins that are perpendicular to each other.

[0011] The bottom of the wiring groove is provided with a through hole adapted to the pin. The lower end of the pin extends through the through hole to the bottom of the insulating shell. The pin and the through hole are interference fit.

[0012] The lower surface of the top plate is provided with a nut and the upper surfaces of the two are flush. A bolt that matches the nut is provided inside the nut. A pressure plate is provided between the bolt and the top plate.

[0013] The pressure plate is provided with a circular through hole, and the lower end of the bolt passes through the circular through hole and the nut.

[0014] Furthermore, a first baffle and a second baffle are respectively provided at the front and rear ends of the first support plate;

[0015] The first baffle, the second baffle, the first support plate, and the second support plate together form a rectangular enclosure, and the conductive component is located inside the enclosure.

[0016] Furthermore, the first baffle, the second baffle, the first support plate, the second support plate, and the multiple partitions are all made of insulating material.

[0017] Furthermore, the upper surface of the top plate is provided with multiple grooves that are evenly distributed along its front-back direction.

[0018] Furthermore, the lower surface of the pressure plate is provided with four raised strips arranged in a cross shape with the circular through hole as the center.

[0019] Furthermore, four slots are symmetrically arranged in pairs along the height direction at both ends of the right side surface of the first support plate and at both ends of the left side surface of the second support plate.

[0020] The left and right end faces of the first side piece and the left and right end faces of the second side piece are each provided with barbed blocks for tight fitting with the bottom of the card slot.

[0021] Furthermore, the insulating shell is made of plastic.

[0022] The beneficial effects of this utility model are as follows:

[0023] 1. By changing the bending direction of the pins, the bending area of ​​the conductive part of the fence-type terminal block is located on the front and rear sides. The gap between the pressure plate and the bending area of ​​the conductive part is located on the non-connection side. When connecting a thin wire with a small cross-sectional area (small wire), the gap between the bending area of ​​the pressure plate and the conductive part is effectively avoided, so that the pressure plate can effectively and fully compress the thin wire. When tightening the screw, the thin wire will not loosen or slip, effectively avoiding safety hazards.

[0024] 2. By adjusting the bending direction of the pins, the electrical creepage distance is increased under the same spacing size, effectively improving electrical safety performance. The electrical safety performance of this fence-type terminal block can meet the rated 600V voltage application scenario. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a convenient tooling for assembling a butterfly-shaped spring and a conductive component as described in this utility model;

[0026] Figure 2 This is a schematic diagram of the combined structure of the push block, push plate and protective component described in this utility model;

[0027] Figure 3 This is a front view of the combined structure of the push block, push plate and protective component described in this utility model;

[0028] Figure 4 This is a schematic diagram of the pusher and protective component assembly structure described in this utility model;

[0029] Figure 5 This is a schematic diagram of the pusher, protective component, and butterfly spring assembly structure described in this utility model;

[0030] Figure 6 This is a schematic diagram showing the state in which the pressure plate and the top piece of this utility model press the thin wire tightly;

[0031] The markings in the diagram are as follows: 1. Insulating shell; 2. Partition; 3. Wiring groove; 4. First support plate; 5. Second support plate; 6. Conductive component; 6. Top plate; 601. First side plate; 602. Second side plate; 603. Connecting plate; 604. Pin; 7. Through hole; 8. Nut; 9. Bolt; 10. Wire clamping plate; 11. Circular through hole; 12. First baffle; 13. Second baffle; 14. Groove; 15. Raised strip; 16. Slot; 17. Barbed block; 18. Thin wire; 19. Detailed Implementation

[0032] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] It should be noted that all directional indicator terms such as "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" in the embodiments of this application indicate the orientation or positional relationship 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 device or component 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. They are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0034] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0035] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0036] like Figure 1-6 As shown, this type of fence-type terminal block includes an insulating housing 1, which is divided into multiple independent wiring slots 3 by multiple partitions 2.

[0037] A first support plate 4 is provided on the left side wall of each wiring slot 3, and a second support plate 5 is provided on the right side wall of each wiring slot 3.

[0038] The upper ends of the first support plate 4 and the second support plate 5 are provided with conductive elements 6, which are generally made of copper sheets;

[0039] The conductive element 6 includes a top plate 601, the left and right ends of which are located at the upper ends of the first support plate 4 and the second support plate 5, respectively.

[0040] The front end of the top piece 601 is bent with a first side piece 602, and the rear end of the top piece 601 is bent with a second side piece 603. The first side piece 602, which is bent, can enhance the overall strength of the conductive component 6.

[0041] The lower end of the second side piece 603 is bent forward to form a connecting piece 604, which is perpendicular to the second side piece 603.

[0042] The connecting piece 604 has a pin 7 bent on the right side of its front end, and the two are perpendicular to each other. By bending the connecting piece 604 forward and having a pin 7 bent on the right side of its front end, the electrical creepage distance can be effectively extended and the electrical safety performance can be effectively improved under the same spacing size. It should be noted that the bending part of the existing conductive part 6 is located on the left and right sides of the wiring groove 3, while the bending part of the conductive part 6 in this application is located on the front and rear sides of the wiring groove 3, with the left and right sides being the wiring sides.

[0043] The bottom of the wiring groove 3 is provided with a through hole 8 that is adapted to the pin 7. The lower end of the pin 7 extends through the through hole 8 to the bottom of the insulating housing 1. The pin 7 and the through hole 8 are interference fit. The interference fit allows the entire conductive component 6 to be fixed in the wiring groove 3 without loosening.

[0044] The lower surface of the top plate 601 is provided with a nut 9 and the upper end surfaces of the two are flush. The nut 9 is generally located at the center of the lower surface of the top plate 601, that is, the upper end of the nut 9 completely penetrates the top plate 601 and does not exceed the upper surface of the top plate 601, ensuring that the top plate 601 and the pressure plate 11 can be in close contact. A bolt 10 adapted to it is provided in the nut 9. The pressure plate 11 is provided between the bolt 10 and the top plate 601. The pressure plate 11 is generally made of copper sheet.

[0045] The pressure plate 11 is provided with a circular through hole 12, the size of which is adapted to the size of the bolt 10. The lower end of the bolt 10 passes through the circular through hole 12 and the nut 9. When wiring, loosen the bolt 10, insert one end of the wire from the left or right side, and then tighten the bolt 10 so that the pressure plate 11 and the top plate 601 of the conductive component 6 are in close contact, completely pressing and fixing the wire. Since the bent part of the conductive component 6 is located on the front and rear sides of the wiring groove 3, there is no gap between the pressure plate 11 and the left and right sides of the top plate 601 of the conductive component 6. This ensures that the thin wire 19 (small wire) can also be fully pressed and will not loosen or slip. That is, both thin wires and relatively thick wires can be pressed and fixed, effectively avoiding safety hazards. In addition, by adjusting the bending direction of the pin 7, the electrical creepage distance is increased under the same spacing size, effectively improving the electrical safety performance. The electrical safety performance of this fence-type terminal block can reach the rated 600V voltage application scenario.

[0046] like Figure 1 , Figure 2 As shown, in this embodiment, in order to avoid the conductive component 6 being exposed, the front and rear ends of the first support plate 4 are respectively provided with a first baffle 13 and a second baffle 14.

[0047] The first baffle 13, the second baffle 14, the first support plate 4 and the second support plate 5 together form a rectangular enclosure. The conductive component 6 is located inside the enclosure. The enclosure can enclose the conductive component 6 and avoid the adverse effects caused by the exposed conductive component 6.

[0048] In this embodiment, in order to improve the overall performance, the first baffle 13, the second baffle 14, the first support plate 4, the second support plate 5 and the multiple partitions 2 are all made of insulating material to avoid adverse consequences caused by accidental contact with the strip.

[0049] like Figure 4 As shown, in this embodiment, in order to further improve the stability of the thin wire, the upper surface of the top plate 601 is provided with a plurality of grooves 15 and evenly distributed along its front-back direction. The friction force can be increased by the plurality of grooves 15, thereby improving the stability of the thin wire.

[0050] like Figure 5 As shown, in this embodiment, in order to further improve the stability of the thin wire, the lower surface of the pressure plate 11 is provided with four protrusions 16 and distributed in a cross shape with the circular through hole 12 as the center. Through the cooperation of the protrusions 16 and the grooves 15, the pressure plate 11 can more firmly press the thin wire onto the top plate 601 of the conductive member 6, further ensuring that the thin wire will not loosen or slip off.

[0051] like Figure 2 , Figure 3 , Figure 4 As shown, in this embodiment, to further improve the stability of the conductive component 6 in the wiring groove 3, four slots 17 are symmetrically arranged in pairs along the height direction at the front and rear ends of the right side surface of the first support plate 4 and the front and rear ends of the left side surface of the second support plate 5.

[0052] Both the left and right end faces of the first side piece 602 and the second side piece 603 are provided with barbed blocks 18 for tight engagement with the bottom of the slots 17. That is, slots 17 are provided on the front end of the right side surface of the first support plate 4 and the front end of the left side surface of the second support plate 5. The barbed blocks 18 on the left end face of the first side piece 602 are located within the slots 17 on the front end of the right side surface of the first support plate 4, and the barbed blocks 18 on the right end face of the first side piece 602 are located within the slots 17 on the front end of the left side surface of the second support plate 5. The rear end of the first support plate 4 and the rear end of the left side surface of the second support plate 5 are both provided with slots 17. The barb block 18 provided on the left end face of the second side plate 603 is located in the slot 17 at the rear end of the left side surface of the first support plate 4. The barb block 18 provided on the right end face of the second side plate 603 is located in the slot 17 at the front end of the left side surface of the second support plate 5. The barb block 18 is tightly engaged with the bottom of the corresponding slot 17. By tightly engaging the barb block 18 with the bottom of the corresponding slot 17, the fastening and stability of the conductive component 6 can be effectively improved, making the conductivity of the conductive component 6 more stable.

[0053] In this embodiment, preferably, the insulating shell 1 is made of plastic.

[0054] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A fence-type terminal block, comprising an insulating housing (1), characterized in that: The insulating housing (1) is divided into multiple independent wiring slots (3) by multiple partitions (2); A first support plate (4) is provided on the left side wall of each wiring slot (3), and a second support plate (5) is provided on the right side wall of each wiring slot (3). Conductive components (6) are provided at the upper ends of the first support plate (4) and the second support plate (5). The conductive element (6) includes a top plate (601), and the left and right ends of the top plate (601) are located at the upper ends of the first support plate (4) and the second support plate (5), respectively. The top piece (601) has a first side piece (602) bent at the front end and a second side piece (603) bent at the rear end. The lower end of the second side piece (603) is bent forward to form a connecting piece (604), which is perpendicular to the second side piece (603). The connecting piece (604) has a pin (7) bent on the right side of its front end, and the two are perpendicular to each other; The bottom of the wiring groove (3) is provided with a through hole (8) that is compatible with the pin (7). The lower end of the pin (7) extends through the through hole (8) to the bottom of the insulating housing (1). The pin (7) and the through hole (8) are interference fit. The lower surface of the top plate (601) is provided with a nut (9) and the upper surfaces of the two are flush. A bolt (10) is provided in the nut (9) and a pressure plate (11) is provided between the bolt (10) and the top plate (601). The pressure plate (11) is provided with a circular through hole (12), and the lower end of the bolt (10) passes through the circular through hole (12) and the nut (9).

2. The fence-type terminal block according to claim 1, characterized in that: The first support plate (4) is provided with a first baffle (13) and a second baffle (14) at its front and rear ends respectively. The first baffle (13), the second baffle (14), the first support plate (4) and the second support plate (5) together form a rectangular enclosure, and the conductive element (6) is located inside the enclosure.

3. A fence-type terminal block according to claim 2, characterized in that: The first baffle (13), the second baffle (14), the first support plate (4), the second support plate (5) and the multiple partitions (2) are all made of insulating material.

4. A fence-type terminal block according to claim 3, characterized in that: The upper surface of the top piece (601) is provided with a plurality of grooves (15) which are evenly distributed along its front-back direction.

5. A fence-type terminal block according to claim 4, characterized in that: The lower surface of the pressure plate (11) is provided with four protrusions (16) and they are arranged in a cross shape with the circular through hole (12) as the center.

6. A fence-type terminal block according to claim 5, characterized in that: Four slots (17) are symmetrically arranged in pairs along the height direction at the front and rear ends of the right side surface of the first support plate (4) and the front and rear ends of the left side surface of the second support plate (5). The left and right end faces of the first side piece (602) and the left and right end faces of the second side piece (603) are provided with barbed blocks (18) for tight fit with the bottom of the slot (17).

7. A fence-type terminal block according to claim 6, characterized in that: The insulating housing (1) is made of plastic.

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