Jumper link for terminal and terminal block with link function

Abstract

This utility model relates to a pluggable bridging connector used on terminal blocks. It discloses a bridging connector for terminal blocks and a terminal block with a bridging function. The bridging connector has several mounting holes on its bridging conductive sheet for inserting conductive posts. The conductive posts and the bridging conductive sheet are integrally wrapped with an insulating coating. The exposed portion of the conductive post serves as a conductive branch. One end of the conductive branch, which connects to the internal conductive component of the terminal block, is fixed with a contact drum spring. The contact drum spring is composed of several spring pieces arranged in a gapped, drum-shaped configuration. A bridging conductive component is housed within the insulating housing of the terminal block, and this component has an external bridging hole adapted to the conductive branch. It enables parallel connection of terminal blocks using male / female pins as conductive components through quick plugging and unplugging, resulting in high connection reliability.

Description

Technical Field

[0001] This utility model relates to a jumper connector structure for a terminal block, and more particularly to a pluggable jumper connector. Background Technology

[0002] To achieve parallel connection of multiple adjacent terminals on a terminal block, jumper connectors are used. For example, CN208368778U, "A Terminal Block Capable of Two Connection Functions," discloses a structure for a jumper connector used for parallel connection between terminals. Commonly used jumper connector structures in the prior art are mainly divided into two types: screw-type and plug-in type. The plug-in type jumper connector includes a jumper conductive sheet enclosed in an insulating shell and conductive branches connected to the jumper conductive sheet. Each conductive branch is inserted into a jumper connection hole on the insulating shell of a single terminal block and then conductively connected to the conductive internal components inside the insulating shell. Plug-in type jumper connectors are available in 2-position, 3-position, and 4-position configurations, used to achieve parallel connection between conductors at the same end of a terminal block consisting of two, three, or more terminals.

[0003] The applicant has recently developed a novel terminal block structure. Instead of conventional spring contacts, the conductive components within the terminal block's insulating housing utilize interlocking male and female pins. To achieve the communication function of this new terminal block structure, a jumper connector is required for the newly designed terminal block. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a jumper connector for wiring terminals and a terminal block with a communication function by using the jumper connector.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a bridging connector for wiring terminals, the bridging connector including a bridging conductive sheet, the bridging conductive sheet being provided with mounting holes for inserting conductive posts, the mounting holes being two or more, the conductive posts and the bridging conductive sheet being wrapped together by an insulating rubber coating, the exposed part of the conductive post serving as a conductive branch, the end of the conductive branch used for inserting into the conductive component inside the wiring terminal being fixed with a contact drum spring, the contact drum spring being composed of at least two spring pieces forming a gapped waist drum shape.

[0006] The conductive post and the mounting hole are interference-fitted.

[0007] The free end of the conductive branch is provided with a convex cone for fixing the contact drum spring.

[0008] A terminal block with a communication function includes two or more terminals. The insulating housing of the terminals is provided with a bridging communication hole. A communication conductive element is provided inside the insulating housing of the terminals. The communication conductive element is provided with an external communication hole corresponding to the bridging communication hole. It also includes the aforementioned bridging communication element for the terminals. The free end of the conductive branch is inserted into the bridging communication hole, and its contact drum spring contacts the inner wall of the external communication hole.

[0009] The insulating housing of the terminal block includes a conductive assembly consisting of female and male pins that are plugged into each other, and the conductive component is connected to the male pin.

[0010] The conductive contact element has an inner contact hole that is compatible with the male pin. A single male pin is installed in the inner contact hole through a contact spring and is electrically connected to the conductive contact element.

[0011] One end of the contact spring is a ring that transitions or is interference-fitted with the inner connecting hole, and the other end of the contact spring consists of two or more reduced-diameter spring pieces with axial gaps connected to the ring. The inner diameter of the contact spring at the free end of the spring piece is smaller than the outer diameter of the needle body at the corresponding mating part of the male pin.

[0012] The beneficial effects of this utility model are: it can achieve parallel connection of terminals using male / female pins as conductive internals through quick plugging and unplugging, resulting in good connection reliability. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the terminal block with communication function of this utility model.

[0014] Figure 2 yes Figure 1 A schematic diagram showing the corresponding connections of the jumper connector and the terminal block.

[0015] Figure 3 yes Figure 2 A cross-sectional view of the terminal block.

[0016] Figure 4 yes Figure 2 Axonometric diagram showing the corresponding connections between the intermediate bridging connector and the intermediate bridging conductive component in the terminal block.

[0017] Figure 5 Yes, yes Figure 4 A schematic diagram of the structure of the intermediate bridging connector.

[0018] Figure 6 yes Figure 4 A cross-sectional view showing the connection and mating of the intermediate conductive element and the bridging element.

[0019] Figure 7 yes Figure 6A schematic diagram showing the connection between the conductive element and the contact spring.

[0020] Figure 8 yes Figure 6 A schematic diagram of the contact spring.

[0021] The markings in the diagram are as follows: 1-Female pin, 2-Male pin, 3-Insulating shell, 9-Identification strip snap-fit ​​area, 70-Connecting conductive element, 71-Contact spring, 72-Inner connecting hole, 73-Outer connecting hole, 79-Bridging connecting hole, 90-Bridging connecting element, 91-Bridging conductive piece, 92-Conductive post, 93-Contact drum spring, 94-Insulating rubber-coated part, 95-Convex cone, 711-Reduced diameter spring. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] like Figure 5 As shown, the present invention provides a bridging connector for terminal blocks. The bridging connector 90 includes a bridging conductive sheet 91, which has mounting holes for inserting conductive posts 92. There are two or more mounting holes. The conductive posts 92 and the bridging conductive sheet 91 are wrapped together by an insulating coating 94. The exposed part of the conductive post 92 serves as a conductive branch. One end of the conductive branch, which is used to connect with the conductive component inside the terminal block, is fixed with a contact drum spring 93. The contact drum spring 93 is composed of several spring pieces arranged in a gapped drum shape.

[0024] The shape of the contact drum spring 93 is somewhat similar to that of the crown spring described in the prior art, such as CN208315832U. The crown spring includes two rings and multiple spring plates, but in the prior art, the spring plates are bent inward, while the spring plates of the contact drum spring 93 are bent outward. The contact drum spring 93 is composed of several spring plates forming a gapped drum shape, and its maximum outer diameter is larger than the inner diameter of the outer connecting hole 73, ensuring a reliable connection between the bridging connector 90 and the connecting conductive member 70 after insertion into the outer connecting hole 73.

[0025] The conductive post 92 is press-fitted with the mounting hole to ensure that the conductive post 92 is electrically connected to the cross-connecting conductive piece 91.

[0026] The free end of the conductive branch is provided with a convex cone 95 for fixing the contact drum spring 93. The convex cone 95 can be truncated cone in shape, serving both as an insertion guide and an axial limiter for the contact drum spring 93.

[0027] like Figures 1 to 8As shown, the terminal block with communication function of this utility model includes two or more terminals. The insulating housing of the terminals is provided with a bridging connection hole 79. A communication conductive element 70 is provided inside the insulating housing of the terminals. The communication conductive element 70 is provided with an external communication hole 73 corresponding to the bridging connection hole 79. It also includes the aforementioned bridging connection element 90 for the terminals. The free end of each conductive branch is inserted into the bridging connection hole 79, and its contact spring 93 contacts the inner wall of the external communication hole 73. The number of conductive branches is not less than the number of terminals in the terminal block. Generally, the number of conductive branches connected on the same bridging conductive piece 91 is 2, 3, 5, or 10. It is recommended that the bridging conductive piece 91 and the conductive post 92 be made of copper, and the contact spring 93 be made of beryllium copper alloy.

[0028] like Figure 3 and Figure 6 As shown, the insulating housing of the terminal block includes a conductive assembly consisting of a female pin 1 and a male pin 2 that are plugged into each other, and the connecting conductive element 70 is connected to the male pin 2.

[0029] like Figure 7 and Figure 8 As shown, the conductive contact element 70 is provided with an inner contact hole 72 that is adapted to the male pin 2. The single male pin 2 is installed in the inner contact hole 72 through a contact spring 71 and is electrically connected to the conductive contact element 70.

[0030] like Figure 8 As shown, one end of the contact spring 71 consists of four reduced-diameter spring pieces 711 with axial gaps. The inner diameter of the contact spring at the free end of the spring piece is smaller than the outer diameter of the corresponding mating part of the male needle 2, ensuring that the contact spring 71 and the male needle 2 make conductive contact and connect. The other end of the contact spring 71 is a ring that transitions or interferes with the inner connecting hole 72, ensuring that the contact spring 71 and the connecting conductive element 70 make conductive contact and connect. It is recommended that the contact spring 71 beryllium copper alloy be used. It is recommended that the connecting conductive element 70 be used copper.

Claims

1. A bridging connector for terminal blocks, the bridging connector (90) comprising a bridging conductive sheet (91), the bridging conductive sheet (91) having mounting holes for inserting conductive posts (92), the mounting holes being two or more, the conductive posts (92) and the bridging conductive sheet (91) being integrally wrapped by an insulating coating (94), the exposed portion of the conductive posts (92) serving as conductive branches, characterized in that: conductive The end of the branch used to connect to the internal conductive part of the terminal block is fixed with a contact drum spring (93), which is composed of at least two spring pieces forming a gapped waist drum shape.

2. The bridging connector for terminal blocks as described in claim 1, characterized in that: The conductive post (92) is interference-fitted with the mounting hole.

3. The bridging connector for terminal blocks as described in claim 1, characterized in that: The free end of the conductive branch is provided with a cone (95) for fixing the contact drum spring (93).

4. A terminal block with a communication function, comprising two or more terminals, wherein the insulating housing of the terminals is provided with a bridging communication hole (79), and a communication conductive element (70) is provided inside the insulating housing of the terminals, and the communication conductive element (70) is provided with an external communication hole (73) corresponding to the bridging communication hole (79), characterized in that: It also includes a bridging connector (90) for a terminal block as described in any one of claims 1 to 3, wherein the free end of the conductive branch is inserted into the bridging connector hole (79), and its contact drum spring (93) contacts the inner wall of the outer connector hole (73).

5. The terminal block with communication function as described in claim 4, characterized in that: The insulating housing of the terminal block includes a conductive assembly consisting of a female pin (1) and a male pin (2) that are plugged into each other, and the connecting conductive element (70) is connected to the male pin (2).

6. The terminal block with communication function as described in claim 5, characterized in that: The communication conductive element (70) has an inner communication hole (72) adapted to the male pin (2). The single male pin (2) is installed in the inner communication hole (72) through a contact spring (71) and is electrically connected to the communication conductive element (70).

7. The terminal block with communication function as described in claim 6, characterized in that: One end of the contact spring (71) is a ring that transitions or interferes with the inner connecting hole (72). The other end of the contact spring (71) is composed of two or more reduced-diameter spring pieces (711) with axial gaps connected to the ring. The inner diameter of the contact spring at the free end of the spring piece is smaller than the outer diameter of the needle body at the corresponding mating part of the male needle (2).

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