Clamping terminal blocks

By designing a gradually narrowing and widening structure for the clamping plate and indentation reinforcement ribs, the problem of difficult insertion of conductive devices caused by excessively tight clamping plates was solved, achieving easy insertion and stable connection of conductive devices.

CN224288629UActive Publication Date: 2026-05-26ZHONGSHAN XINHANG HARDWARE & PLASTIC CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGSHAN XINHANG HARDWARE & PLASTIC CO LTD
Filing Date
2025-05-08
Publication Date
2026-05-26

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Abstract

This utility model relates to the field of terminal block technology, specifically disclosing a clamping terminal block, including a terminal block and a connector. The terminal block is used to connect wires; the connector is disposed at the front end of the terminal block, and includes a connecting plate and two clamping pieces. The connecting plate is vertically arranged, and its lower end is connected to the terminal block. Both clamping pieces are connected to both sides of the connecting plate, and both clamping pieces extend towards the front of the connecting plate. Each clamping piece includes a first clamping part and a second clamping part, and the second clamping part is connected to the front of the first clamping part. In the forward extending direction, the distance between the two first clamping parts gradually decreases, and the distance between the two second clamping parts gradually increases. This utility model facilitates connection with conductive devices.
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Description

Technical Field

[0001] This utility model relates to the field of terminal block technology, and in particular to a clamping terminal block. Background Technology

[0002] Terminal blocks are electrical components used to achieve electrical connections. They play a role in connecting, fixing, and transmitting electrical energy in circuit systems and are an important part of ensuring reliable connections between electrical equipment and lines.

[0003] Currently, two-piece clamping terminal blocks are available on the market. These terminal blocks consist of two opposing clamping pieces that allow conductive components, such as conductive sheets, to be inserted and held in place, thus achieving a circuit connection. However, the clamping pieces of these current terminal blocks clamp too tightly, making it difficult to insert conductive components. Utility Model Content

[0004] This utility model provides a clamp-type terminal block that facilitates connection to conductive devices.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] An embodiment of this utility model provides a clamping terminal block, including a terminal block and a connector. The terminal block is used to connect wires. The connector is disposed at the front end of the terminal block and includes a connecting plate and two clamping pieces. The connecting plate is vertically arranged and its lower end is connected to the terminal block. Both clamping pieces are connected to both sides of the connecting plate and extend towards the front of the connecting plate. Each clamping piece includes a first clamping part and a second clamping part, and the second clamping part is connected to the front of the first clamping part. In the forward extending direction, the distance between the two first clamping parts gradually decreases, and the distance between the two second clamping parts gradually increases.

[0007] In some embodiments, the included angle formed by the two second clamping portions is greater than the included angle formed by the two first clamping portions.

[0008] In some embodiments, the second clamping portion is semi-circular, and the arcuate surface of the second clamping portion is located on the front side of the second clamping portion.

[0009] In some embodiments, multiple indentations are provided on the outer surfaces of both clamping pieces.

[0010] In some embodiments, the terminal block includes a terminal base plate, two positioning plates and two bendable wire clamping plates. The two positioning plates are respectively connected to both sides of the terminal base plate, and the two wire clamping plates are also respectively connected to both sides of the terminal base plate.

[0011] In some embodiments, the inner side of the positioning plate is provided with a protruding ridge.

[0012] In some embodiments, the pressure plates are provided in two sets, each set including two pressure plates, and the positioning plate is located between the two sets of pressure plates in the front-back direction.

[0013] In some embodiments, the connecting plate, clamping plate, wiring base plate, positioning plate, and pressure plate are integrally formed.

[0014] This utility model has at least the following beneficial effects: The clamping pieces of this utility model all include a first clamping part and a second clamping part, and the second clamping part is connected to the front side of the first clamping part; in the forward extending direction, the distance between the two first clamping parts gradually decreases, and the distance between the two second clamping parts gradually increases, which is equivalent to expanding the distance between the front ends of the two clamping pieces, making it easier for conductive devices to be inserted between the two second clamping parts, and under the guidance of the second clamping parts, conductive devices can be smoothly inserted between the two first clamping parts. Therefore, the terminals of this utility model are convenient to be plugged into conductive devices. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a clamping terminal block according to an embodiment of the present invention;

[0016] Figure 2 for Figure 1 The diagram shows a top view of the clamp-on terminal block.

[0017] The attached figures are labeled as follows:

[0018] Terminal block 100, terminal base plate 110, positioning plate 120, protruding ridge 121, wire clamping plate 130;

[0019] Connector 200, connecting plate 210, clamping piece 220, first clamping part 221, second clamping part 222, indentation 223. Detailed Implementation

[0020] This invention provides the following description with reference to the accompanying drawings to aid in a comprehensive understanding of the various embodiments of the invention as defined by the claims and their equivalents. The description includes various specific details to aid understanding, but these details should be considered exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the invention.

[0021] In the description of this utility model, the orientation descriptions, such as up, down, front, back, left, right, etc., are 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 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 utility model.

[0022] It should be understood that when one element (e.g., the first element) is “connected” to another element (e.g., the second element), the element may be directly connected to the other element, or there may be an intervening element (e.g., the third element) between the element and the other element.

[0023] An embodiment of this utility model provides a clamping terminal block, such as... Figure 1 and Figure 2 As shown, the device includes a terminal block 100 and a connector 200. The terminal block 100 is used to connect wires to transmit electrical signals. The connector 200 is located at the front end of the terminal block 100. The connector 200 includes a connecting plate 210 and two clamping pieces 220. The connecting plate 210 is vertically arranged, and its lower end is connected to the terminal block 100. Both clamping pieces 220 are connected to both sides of the connecting plate 210, and both clamping pieces 220 extend towards the front of the connecting plate 210.

[0024] Both clamping pieces 220 include a first clamping portion 221 and a second clamping portion 222, with the second clamping portion 222 connected to the front side of the first clamping portion 221. In the forward extending direction, the distance between the two first clamping portions 221 gradually decreases to enable the clamping pieces 220 to provide clamping force. The distance between the two second clamping portions 222 gradually increases, which is equivalent to expanding the distance between the front ends of the two clamping pieces 220. When a wire device is inserted, it is first inserted between the two second clamping portions 222. Because the distance between the two second clamping portions 222 gradually increases, the conductive device is more easily inserted between them. After the conductive device is inserted between the two second clamping portions 222, the second clamping portions 222 can guide the conductive device to move backward, allowing it to be smoothly inserted between the two first clamping portions 221, completing the insertion of the conductive device. Therefore, the terminal block of this embodiment is convenient for insertion with conductive devices.

[0025] In some embodiments, the included angle b formed by the two second clamping portions 222 is greater than the included angle a formed by the two first clamping portions 221, that is, the two second clamping portions 222 open at a larger angle, making it easier for conductive devices to be inserted between the two second clamping portions 222, and further facilitating the connection of the wiring terminal to the external conductive device.

[0026] In some embodiments, the second clamping portion 222 is semi-circular, and thus has an arc-shaped surface. The arc-shaped surface of the second clamping portion 222 is located on the front side of the second clamping portion 222. The front side of the second clamping portion 222 is relatively smooth. When the conductive device is inserted in the wrong position, for example, inserted to the outside of the second clamping portion 222, the front side of the second clamping portion 222 is relatively less likely to scratch the conductive device. At the same time, it is also easy to scratch the staff during the process of installing the entire terminal block into the connector.

[0027] In some embodiments, the outer surfaces of the two clamping pieces 220 are provided with a plurality of indentations 223, which are used to form reinforcing ribs to improve the structural strength of the two clamping pieces 220, so that the clamping pieces 220 can maintain their shape and increase the number of insertions.

[0028] In this embodiment, the indentation 223 can be formed by stamping.

[0029] In some embodiments, the terminal block 100 includes a terminal base plate 110, two positioning plates 120 and two bendable wire clamping plates 130. The two positioning plates 120 are respectively connected to both sides of the terminal base plate 110, and the two wire clamping plates 130 are also respectively connected to both sides of the terminal base plate 110.

[0030] When connecting wires, the exposed core wire is placed on the terminal base plate 110, and two positioning plates 120 restrict the movement of the wire from both sides, thus positioning the wire. Then, the two clamping plates 130 can be bent to fasten the exposed core wire onto the terminal base plate 110, thereby fixing the wire and transmitting electrical signals at the same time.

[0031] Furthermore, the inner side of the positioning plate 120 is provided with a protruding ridge 121, which can increase the friction force, making it difficult for the wire to move in the front-back direction and thus making it less likely to detach from the terminal block 100, thereby improving the stability of the wire installation.

[0032] In some embodiments, the wire clamping plates 130 are provided in two sets, each set including two wire clamping plates 130. In the front-back direction, the positioning plate 120 is located between the two sets of wire clamping plates 130. The two sets of wire clamping plates 130 can enhance the clamping effect on the wires. The wire clamping plates 130 are arranged one in front of the other relative to the positioning plate 120, which can further improve the clamping effect on the wires.

[0033] In some embodiments, the connecting plate 210, clamping piece 220, wiring base plate 110, positioning plate 120 and pressure plate 130 are integrally formed to simplify the molding process and facilitate the manufacturing and molding of the entire terminal block.

[0034] The terms and words used in the foregoing description and claims are not limited to their literal meaning, but are merely used by the applicant to enable a clear and consistent understanding of the present invention. Therefore, those skilled in the art should understand that the foregoing description of various embodiments of the present invention is for illustrative purposes only, and not intended to limit the present invention as defined by the appended claims and their equivalents.

Claims

1. A clamp terminal, characterized by: The device includes a terminal block and a connector. The terminal block is used to connect wires. The connector is located at the front end of the terminal block and includes a connecting plate and two clamping pieces. The connecting plate is vertically oriented and its lower end is connected to the terminal block. Both clamping pieces are connected to both sides of the connecting plate and extend towards the front of the connecting plate. Each clamping piece includes a first clamping part and a second clamping part. The second clamping part is connected to the front of the first clamping part. In the forward extending direction, the distance between the two first clamping parts gradually decreases, and the distance between the two second clamping parts gradually increases.

2. The clamp terminal of claim 1, wherein: The angle formed by the two second clamping parts is greater than the angle formed by the two first clamping parts.

3. The clamping terminal block according to claim 1, characterized in that: The second clamping part is semi-circular, and the arc-shaped surface of the second clamping part is located on the front side of the second clamping part.

4. The clamping terminal block according to claim 1, characterized in that: Multiple indentations are provided on the outer surfaces of both clamping plates.

5. The clamping terminal block according to any one of claims 1-4, characterized in that: The terminal block includes a terminal base plate, two positioning plates, and two bendable wire clamping plates. The two positioning plates are connected to both sides of the terminal base plate, and the two wire clamping plates are also connected to both sides of the terminal base plate.

6. The clamping terminal block according to claim 5, characterized in that: The inner side of the positioning plate is provided with protruding ridges.

7. The clamping terminal block according to claim 5, characterized in that: The pressure plate is provided in two sets, each set including two pressure plates, and the positioning plate is located between the two sets of pressure plates in the front-back direction.

8. The clamping terminal block according to claim 5, characterized in that: The connecting plate, clamping plate, wiring base plate, positioning plate and pressure plate are integrally formed.