A wiring terminal

Abstract

The utility model belongs to connector technical field discloses a wiring terminal, is provided at the front of connector for fixedly inserting the conductor from outside and the inside circuit conductive connection, including the shell of built -in conductive piece's conductive connection inside circuit, the side end surface of shell is equipped with the spigot for the conductor of outside insertion, and with the operating element on the same side end surface of spigot, The shell has the wire pressing block that links up with operating element, the wire pressing block is rotatably connected with the shell and has the wire pressing end that contacts the conductor from the spigot, the wire pressing end presses the conductor from outside and is abutted with the conductive piece and is conductive connection. The utility model has the advantages of simple structure and good effect, can realize the effect that the conductor is inserted in the front and is pressed tightly fixed.

Description

Technical Field

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

[0002] Terminal blocks, as key components for circuit connections, are widely used in circuit facilities such as circuit breakers, especially in the circuit layout of cabinet racks. With the development of industrial automation and power systems, the requirements for the stability and convenience of circuit connections have increased. Terminal blocks, through their standardized structure, reliably fix the wires and have become a fundamental component of electrical system integration.

[0003] Most terminal blocks currently use a side bolt clamping structure, with the bolt insertion direction perpendicular to the wire inlet direction. The wire is fixed by tightening the side bolt to compress it.

[0004] This design has significant limitations in installation scenarios where only the front of the cabinet is operable. Operators need to tighten the bolts from the side, but due to the internal space of the cabinet and the obstruction of the panel, it is difficult to directly access the side bolts when operating from the front, which reduces installation efficiency and may affect the stability of the clamping force due to the inconvenience of operation. Utility Model Content

[0005] In order to solve the problems existing in the prior art, this utility model provides a terminal block that, through its internal structural design, allows for the insertion and crimping of wires on the same end face.

[0006] The technical solution adopted in this utility model is as follows: In a first aspect, this utility model provides a terminal block, which is disposed on the front of a connector for fixing an externally inserted conductor to make a conductive connection with the internal circuit. It includes a housing with a conductive sheet built into it that makes a conductive connection to the internal circuit. One end face of the housing is provided with a socket for inserting an external conductor, and an operating component located on the same end face as the socket. The housing contains a pressure block that is linked to the operating element. The pressure block is rotatably connected to the housing and has a pressure end that contacts an external conductor entering from the socket. The pressure block has an elastic portion that provides a constant fit to the operating element. The pressure end connects the external conductor to the conductive sheet for conductive connection.

[0007] In conjunction with the first aspect, the present invention provides a first embodiment of the first aspect, wherein the elastic part is a torsion spring disposed at the position where the pressure block is rotatably connected to the housing and provides a restoring force to the insertion portion of the pressure block away from the external conductor.

[0008] In conjunction with the first embodiment of the first aspect, the present invention provides a second embodiment of the first aspect, wherein the pressure block has an operating end that is always in contact with the operating member due to the torsion spring.

[0009] In conjunction with the second embodiment of the first aspect, this utility model provides a third embodiment of the first aspect, wherein the straight-line distance from the operating end to the rotation axis of the pressure block is greater than the straight-line distance from the pressure end to the rotation axis of the pressure block.

[0010] In conjunction with the first aspect, this utility model provides a fourth embodiment of the first aspect, wherein the pressure block has an operating end that is hinged to the operating member.

[0011] In conjunction with the first aspect, this utility model provides a fifth embodiment of the first aspect, wherein the operating component is a wire pressing screw that is threaded into the housing, the head of the wire pressing screw that operates with an external tool is located outside the housing, and the end of the wire pressing screw that is inserted into the housing is connected to the wire pressing block in a transmission manner.

[0012] In conjunction with the first aspect, this utility model provides a sixth embodiment of the first aspect, wherein the housing includes an operating chamber with an operating component and a wire clamping chamber for inserting an external conductor, the conductive sheet having a contact portion that fits against the side wall of the wire clamping chamber in the direction relative to the operating chamber, and the wire clamping end of the wire clamping block pushes the conductor entering the wire clamping chamber toward the contact portion to abut against the contact portion for conductive connection.

[0013] In conjunction with the sixth embodiment of the first aspect, this utility model provides a seventh embodiment of the first aspect, wherein the housing includes a cover and a base that are interlocked with each other, the base is provided with a wire pressing block and a conductive sheet, and the cover has an operation port for guiding an operating component into the operation chamber and an insertion port for guiding an external conductor into the wire pressing chamber.

[0014] In conjunction with the sixth embodiment of the first aspect, this utility model provides an eighth embodiment of the first aspect, wherein the cover is provided with a fixing hole for fixing the housing to the connector.

[0015] The beneficial effects of this utility model are as follows: (1) The rotating pressure block structure provided in this utility model can change the direction of travel of the operating component that is consistent with the direction of conductor insertion to the direction perpendicular to the direction of conductor insertion, so that the same end face can be used for wire insertion and operation on the housing of the terminal block, and then the wire insertion and conductive sheet are pressed and fixed by the pressure block inside. (2) The rotating pressing block structure in this utility model improves the pressing force by setting the distance between the operating end and the pressing end and the rotating arm length of the rotating point through the lever principle, thereby ensuring the pressing effect and stability as much as possible. Attached Figure Description

[0016] Figure 1 This is an external plan view of a wiring terminal used in an embodiment of this utility model; Figure 2This is an external isometric schematic diagram of a wiring terminal used in an embodiment of this utility model; Figure 3 This is an internal cross-sectional view of a terminal block used in an embodiment of this utility model; Figure 4 This is a split isometric view of a wiring terminal used in an embodiment of this utility model; Figure 5 This is a schematic diagram of the internal unclamped state of a terminal block used in an embodiment of this utility model; Figure 6 This is a schematic diagram of the internal wire clamping state of a terminal block used in an embodiment of this utility model; Figure 7 This is an isometric view of a terminal block used in this embodiment of the invention, showing the internal state of the terminal block clamping the wire.

[0017] In the diagram: 1-shell, 101-cover, 102-base, 2-insert, 3-clip screw, 4-operation port, 5-clip block, 6-conductive sheet, 7-clip compartment, 8-torsion spring. Detailed Implementation

[0018] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, 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 some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this application, it should be noted that the use of terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product is in use. These terms are used solely for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element 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 application. Furthermore, the use of terms such as "first" and "second" in the description of this application is only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this application does not imply that the component is required to be absolutely horizontal or suspended, but rather that it may be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but rather that it may be slightly tilted.

[0024] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0025] Example 1: This embodiment discloses a terminal block, mainly used as a pluggable terminal structure in connectors, especially for cabinet setups with several slots on a single panel, where there is a need for the plugging and crimping operation structures to be on the same end face.

[0026] Specifically, the terminal block in this embodiment is a fixed connection structure that connects the internal circuit and the external conductor. It includes a plug-in housing 1 and a conductive piece 6 disposed in the housing 1. One end of the conductive piece 6 extends out from the tail of the housing 1 and is electrically connected to the internal circuit. When the entire terminal block is inserted into the corresponding panel slot, the conductive piece 6 extending out from the tail can directly contact and conduct electricity with the connection end of the internal circuit.

[0027] It is worth noting that the so-called conductive sheet 6 is a conductor structure defined in this embodiment. It refers to a structure used as a connection to an external conductor inside the housing 1. It only needs to have a part inside the housing 1 and a part that extends out of the housing 1 and connects to the internal circuit. Its specific shape and size are not limited. The sheet body is only one implementation method and also includes, but is not limited to, cylindrical, rectangular and other shapes.

[0028] Furthermore, the housing 1 has a front end face relative to the tail, with two openings on the end face: one is a socket 2 for inserting an external conductor, and the other is an operation port 4. An operation mechanism is provided in the operation port 4. By connecting an external tool to the operation mechanism, the wire pressing block 5 located inside the housing 1 acts on the conductor inserted from the socket 2, squeezing, pushing, or pulling the conductor so that it partially contacts and conducts electricity with the conductive sheet 6 located inside the housing 1.

[0029] The pressure block 5 is rotatably connected to the inside of the housing 1. The pressure block 5 has an operating end, which is linked with the operating mechanism to achieve the linkage effect through contact or non-contact.

[0030] In one embodiment, the operating end of the pressure block 5 is fixedly connected to the end of the operating mechanism. That is, the operating mechanism itself is a structure extending from the end face of the pressure block 5 facing the housing 1, where the insertion port 2 is located. The operating mechanism can be pushed from the outside to rotate the internal pressure block 5, achieving the pressure effect. To maintain the pressure effect of the rotating pressure block 5, the operating mechanism can be configured as an elastic locking structure with corresponding locking points inside the housing 1. An external tool can push the operating mechanism to rotate the pressure block 5, causing the operating mechanism to rotate and elastically deform, thus locking into the housing 1 for fixation. Simultaneously, it can be hooked out and released by an external tool.

[0031] In one embodiment, the operating end of the pressure block 5 is hinged to the operating mechanism. The operating mechanism can also adopt a structure with a self-locking effect, but it can move linearly and cause the pressure block 5 to rotate with the linearly moving operating mechanism.

[0032] In one implementation, the operating end of the pressure block 5 is only located on the movement path of the linear motion operating mechanism, and is not limited to maintaining a fixed connection with the pressure block 5. When an external tool or manual operation directly operates the operating mechanism to make it move linearly relative to the housing 1, the operating end of the pressure block 5 is within the range of motion, and the operating mechanism touches the operating end, causing it to rotate. In actual applications, the specific positional relationship needs to be set according to the size and relative motion relationship.

[0033] Based on the above-described non-fixed connection contact implementation, an elastic element is also provided between the pressure block 5 and the housing 1 to provide a reset force for the pressure block 5. In this embodiment, a torsion spring 8 structure is used; in other embodiments, a spring or the elastic deformation of the pressure block 5 itself can be used. The elastic element continuously provides a reset force to the pressure block 5 to move toward the operating mechanism.

[0034] In one implementation, the linkage between the pressure block 5 and the operating mechanism is a non-contact method, such as a magnetic push structure. A magnet with magnetic force that meets the pressure force requirements can be used, and the pressure block 5 can be linked to rotate and pressure the wire after the operating mechanism is activated.

[0035] In one embodiment, the pressure block 5 itself is a gear structure, including a complete gear or an incomplete structure that is rotatably connected to the housing 1 and has a partial rack. The operating mechanism is a worm gear structure that maintains a meshing transmission with the pressure block 5. This structure can also achieve the effect of reversing and linking the forces of the operating mechanism and the pressure block 5.

[0036] Furthermore, a rotating non-contact pressure block 5 structure is adopted. The operating mechanism is a pressure screw 3 that is threaded into the housing 1. A protruding operating port 4 is provided on the front of the housing 1, and the operating port 4 has an internal thread for engaging the pressure screw 3. The enlarged end of the pressure screw 3 is located outside the operating port 4, and the enlarged end has a cross, slotted, or hexagonal groove structure for engaging with external tools for insertion and rotation. By rotating the pressure screw 3 so that its end inside the housing 1 can push the operating end of the pressure block 5 to rotate, while the torsion spring 8 provided on the pressure block 5 provides a force that keeps the pressure block 5 in constant contact with the end of the pressure screw 3.

[0037] Furthermore, this embodiment further optimizes and limits the above solution, referring to... Figures 1-7 In this embodiment, the terminal block includes an insulating housing 1 structure. The housing 1 has a receiving cavity, which is functionally divided into a wire pressing compartment 7 and an operating compartment. The wire pressing compartment 7 has a socket 2 on the front and an opening on the back for the end of the conductive sheet 6 to pass through and connect with the internal circuit. The operating compartment has an operating port 4 on the front for the wire pressing screw 3 to enter and exit.

[0038] A rotating shaft seat is provided between the pressure chamber 7 of the housing 1 and the operating chamber. The pressure block 5 is rotatably connected to the rotating shaft seat via a rotating shaft mounted on the rotating shaft seat. A torsion spring 8 is provided on the rotating shaft seat. (Refer to...) Figure 4 and Figure 5 The diagram shows two states of the pressure block 5, one of which is... Figure 4 In this state, most of the wire clamping screw 3 is outside the housing 1, and most of the structure of the wire clamping block 5 is inside the operating chamber, leaving the wire clamping chamber 7 empty, allowing the insertion of an external conductor. Another option is... Figure 5 In the current state, the wire clamping screw 3 is mostly inside the housing 1. The end of the wire clamping screw 3 pushes the wire clamping block 5 to rotate counterclockwise. The clamping end of the wire clamping block 5 penetrates into the wire clamping chamber 7 and pushes the conductor inserted into the chamber 7 towards the conductive sheet 6 on the opposite side of the inner wall of the chamber 7. Finally, the conductor is pressed against the surface of the conductive sheet 6 to maintain the connection. Because the wire clamping screw 3 and the housing 1 are threaded, they have a self-locking effect. After the external tool is rotated to the corresponding clamping state and removed, the wire clamping block 5 will remain in the clamping state.

[0039] Furthermore, the shell 1 consists of two interlocking parts, i.e., refer to Figure 6 The cover 101 and the base 102 are included. The base 102 serves as the main structure of the operation compartment and the wire pressing compartment 7, and is used to install the wire pressing block 5 and the conductive sheet 6. The cover 101 is the front end structure, including the operation port 4 and the socket 2, and has fixing holes at both ends for easy fixing to the frame with bolts.

[0040] This utility model is not limited to the optional embodiments described above, and anyone can derive other various forms of products under the guidance of this utility model. The specific embodiments described above should not be construed as limiting the scope of protection of this utility model. The scope of protection of this utility model shall be determined by the claims, and the description can be used to interpret the claims.

Claims

1. A terminal block, disposed on the front side of a connector for securing an externally inserted conductor to an internal circuit for conductive connection, characterized in that: The housing (1) includes a conductive sheet (6) with a built-in conductive connection to the internal circuit, and a socket (2) for inserting an external conductor is provided on one end face of the housing (1), as well as an operating component on the same end face as the socket (2). The housing (1) has a pressure block (5) that is linked to the operating component. The pressure block (5) is rotatably connected to the housing (1) and has a pressure end that contacts the external conductor entering from the socket (2). The pressure block (5) has an elastic part that provides the pressure block (5) to always be in contact with the operating component. The pressure end connects the external conductor to the conductive sheet (6) for conductive connection.

2. A terminal block according to claim 1, characterized in that: The elastic part is a torsion spring (8) located at the position where the pressure block (5) is rotatably connected to the housing (1) and provides a restoring force to the part of the pressure block (5) that is far from the insertion port (2) of the external conductor.

3. A terminal block according to claim 2, characterized in that: The pressure block (5) has an operating end that is always in contact with the operating element due to the torsion spring (8).

4. A terminal block according to claim 3, characterized in that: The straight-line distance from the operating end to the rotation axis of the pressure block (5) is greater than the straight-line distance from the pressure end to the rotation axis of the pressure block (5).

5. A terminal block according to claim 1, characterized in that: The pressure block (5) has an operating end that is hinged to the operating component.

6. A terminal block according to claim 1, characterized in that: The operating component is a wire pressing screw (3) that is threaded into the housing (1). The head of the wire pressing screw (3) that is engaged with an external tool is located outside the housing (1). The end of the wire pressing screw (3) inserted into the housing (1) is connected to the wire pressing block (5) for transmission.

7. A terminal block according to claim 1, characterized in that: The housing (1) includes an operating chamber with an operating component and a wire clamping chamber (7) for inserting an external conductor. The conductive sheet (6) has a contact portion that fits against the side wall of the wire clamping chamber (7) relative to the direction of the operating chamber. The wire clamping end of the wire clamping block (5) pushes the conductor entering the wire clamping chamber toward the contact portion to abut against the conductive connection.

8. A terminal block according to claim 7, characterized in that: The housing (1) includes a cover (101) and a base (102) that are interlocked. The base (102) is provided with a wire pressing block (5) and a conductive sheet (6). The cover (101) has an operation port (4) for guiding the operating component into the operation chamber and an insertion port (2) for guiding the external conductor into the wire pressing chamber.

9. A terminal block according to claim 7, characterized in that: The cover (101) is provided with fixing holes for fixing the housing (1) to the connector.

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