Low-impedance copper-aluminum hybrid power connection terminal

Abstract

The utility model discloses a low impedance copper aluminum hybrid electric power connection terminal, comprising a first side plate and a second side plate which are in mirror symmetry, a wiring portion is fixed between the first side plate and the second side plate, the top surface of the wiring portion is vertically provided with a groove, a threaded hole vertically passes through the groove, and the first side plate and the second side plate are fixed on the first side plate and the second side plate. The top surface of the wiring part is horizontally provided with a plurality of wire grooves which are annularly distributed at equal intervals, each wire groove is communicated with the groove, the bottom surface of the first side plate and the bottom surface of the second side plate are respectively and vertically fixed with two pins which are in mirror symmetry, and each wire groove is internally and movably connected with a limiting piece. According to the utility model, the top surface of the wiring part is provided with the groove, the top surface of the wiring part is horizontally provided with the plurality of wire ducts communicated with the groove, and each wire duct is internally provided with the limiting piece, so that the limiting and fixing effects are realized when the wiring terminal is fixed on a PCB (Printed Circuit Board) through a screw, and the installation position of the wiring terminal is prevented from deviating when the screw is rotated.

Description

Technical Field

[0001] The utility model relates to the technical field of power connection equipment, in particular to a low-impedance copper-aluminum hybrid power connection terminal. Background Art

[0002] PCBs are essential to nearly every electronic device we encounter, from small devices like electronic watches, calculators, and general-purpose computers to large computers, communications equipment, and military weapon systems. As long as electronic components such as integrated circuits are present, they require electrical interconnections. Besides securing various small parts, PCBs provide mechanical support for the assembly of integrated circuits and other electronic components, enable wiring and electrical connections or insulation between them, and provide required electrical characteristics, such as characteristic impedance. They also provide solder mask patterns for automated soldering and identification characters and graphics for component insertion, inspection, and repair. As electronic devices become increasingly complex and require more and more components, the circuits and components on PCBs are becoming increasingly dense.

[0003] Therefore, terminal blocks are indispensable electronic components in this field. Circuit board terminal blocks have always played a vital role in the electronics industry and have become a key component of printed circuit boards. Their structure and design enhance the advantages of convenient wiring and secure screw connections. They offer a compact structure and reliable connections, which are inherently advantageous. They utilize the principle of lifting the clamp body to ensure reliable wiring and large wiring capacity. The soldering foot and clamp body are separated into two parts, ensuring that the distance between the clamp body and the solder joint is not transmitted to the solder joint and damaged when tightening the screw. They also feature a sturdy and secure housing and precise pin spacing.

[0004] Generally, one end of a PCB terminal block is soldered to the PCB, and the other end is connected using a screw crimping method. The screw crimping method requires threaded connection. The terminal block is sleeved onto the outer edge of the screw, and then the screw with the terminal is screwed and fixed to the PCB. The installation angle of the terminal block is easily offset during the screw rotation process. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a low-impedance copper-aluminum hybrid power connection terminal.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a low-impedance copper-aluminum hybrid power connection terminal, including a first side plate and a second side plate with mirror symmetry, a wiring part is fixed between the first side plate and the second side plate, a groove is vertically provided on the top surface of the wiring part, a threaded hole is vertically passed through the groove, a plurality of equidistant annular wire grooves are horizontally provided on the top surface of the wiring part, each of the wire grooves is connected to the groove, two mirror symmetrical pins are vertically fixed on the bottom surface of the first side plate and the second side plate, and a limit member is movably connected in each of the wire grooves.

[0007] As a further description of the above technical solution: the limiting member includes receiving grooves opened on both sides of the inner wall of the wire trough, and a limiting block is telescopically connected to each of the receiving grooves.

[0008] As a further description of the above technical solution: two mirror-symmetrical sliding grooves are horizontally opened on the inner wall of the storage groove, a slider is slidably connected in each of the sliding grooves, the slider is fixedly connected to the limit block, and a spring is fixed between the storage groove and the limit block.

[0009] As a further description of the above technical solution: a second arcuate surface is provided on the outer side of the limit block, and a first arcuate surface is provided on the bottom wall of the wire trough.

[0010] As a further description of the above technical solution: the wiring portion, the first side panel and the second side panel are an integrated structure and form a complete U-shaped structure.

[0011] As a further description of the above technical solution: the diameter of the groove is larger than the diameter of the threaded hole.

[0012] The utility model has the following beneficial effects:

[0013] Compared with the existing technology, this low-impedance copper-aluminum hybrid power connection terminal has a groove on the top surface of the wiring part, a plurality of wire grooves connected to the groove are horizontally opened on the top surface of the wiring part, and a limiter is provided in each wire groove. This plays a role in limiting and fixing the wiring terminal when it is fixed to the PCB board with screws, preventing the installation position of the wiring terminal from shifting when the screw is rotated. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional diagram of the overall structure of the low-impedance copper-aluminum hybrid power connection terminal proposed by the present invention;

[0015] Figure 2 The low-impedance copper-aluminum hybrid power connection terminal proposed by the utility model Figure 1 A magnified view of the structure at point A;

[0016] Figure 3 This is a cross-sectional view of the connection between the limit block and the wire duct of the low-impedance copper-aluminum hybrid power connection terminal proposed by the present invention.

[0017] Legend:

[0018] 1. First side panel; 2. Wiring portion; 3. Wire duct; 4. Groove; 5. Threaded hole; 6. Second side panel; 7. First curved surface; 8. Connector; 9. Storage slot; 10. Limit block; 11. Second curved surface; 12. Slider; 13. Slide groove; 14. Spring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Reference Figures 1 to 3 The low-impedance copper-aluminum hybrid power connection terminal provided by the present invention comprises a mirror-symmetrical first side plate 1 and a second side plate 6, a wiring portion 2 is fixed between the first side plate 1 and the second side plate 6, a groove 4 is vertically provided on the top surface of the wiring portion 2, a threaded hole 5 is vertically passed through the groove 4, the wiring portion 2 and the first side plate 1 and the second side plate 6 are an integrated structure and form a complete U-shaped structure, the diameter of the groove 4 is larger than the diameter of the threaded hole 5, a plurality of equally spaced annular wire grooves 3 are horizontally provided on the top surface of the wiring portion 2, each wire groove 3 is connected to the groove 4, the first side plate 1 and the second side plate 6 are connected to the groove 4, Two mirror-symmetrical pins 8 are vertically fixed on the bottom surface of the plate 6, and a limit member is movably connected in each wire trough 3. The limit member includes a receiving groove 9 opened on both sides of the inner wall of the wire trough 3, and a limit block 10 is telescopically connected in each receiving groove 9. Two mirror-symmetrical sliding grooves 13 are horizontally opened on the inner wall of the receiving groove 9, and a slider 12 is slidably connected in each sliding groove 13. The slider 12 is fixedly connected to the limit block 10, and a spring 14 is fixed between the receiving groove 9 and the limit block 10. The outer side of the limit block 10 is provided with a second curved surface 11, and the bottom wall of the wire trough 3 is provided with a first curved surface 7.

[0021] By providing a groove 4 on the top surface of the wiring portion 2, a plurality of wire grooves 3 connected to the groove 4 are horizontally opened on the top surface of the wiring portion 2, and a limiter is provided in each wire groove 3, which plays a role in limiting and fixing the wiring terminal when it is fixed to the PCB board with screws, preventing the installation position of the wiring terminal from shifting when the screw is rotated.

[0022] Working principle: When in use, place the terminal of the wiring terminal in the groove 4, and install the cable in the wire groove 3 at the desired installation position. The two limit blocks 10 in the wire groove 3 are acted upon by the second curved surface 11, so that the cable is stuck in the wire groove 3, and the limit blocks 10 move toward the storage groove 9. The spring 14 is compressed. After the cable is installed in the wire groove 3, the spring 14 is reset, so that the two limit blocks 10 in the wire groove 3 move toward the outside of the storage groove 9, fixing the cable in the wire groove 3, and then passing the screw through the wiring terminal and rotating it to fix it on the PCB board with the screw.

[0023] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A low-impedance copper-aluminum hybrid power connection terminal, comprising a first side plate (1) and a second side plate (6) that are mirror-symmetrical, characterized in that: A wiring portion (2) is fixed between the first side panel (1) and the second side panel (6), a groove (4) is vertically provided on the top surface of the wiring portion (2), a threaded hole (5) is vertically passed through the groove (4), a plurality of equally spaced annular wire grooves (3) are horizontally provided on the top surface of the wiring portion (2), each of the wire grooves (3) is connected to the groove (4), two mirror-symmetrical pins (8) are vertically fixed on the bottom surface of each of the first side panel (1) and the second side panel (6), and a limiting member is movably connected in each of the wire grooves (3).

2. The low-impedance copper-aluminum hybrid power connection terminal according to claim 1, characterized in that: The limiting member comprises receiving grooves (9) provided on both sides of the inner wall of the wire trough (3), and a limiting block (10) is telescopically connected in each of the receiving grooves (9).

3. The low-impedance copper-aluminum hybrid power connection terminal according to claim 2, characterized in that: Two mirror-symmetrical sliding grooves (13) are horizontally opened on the inner wall of the receiving groove (9), a slider (12) is slidably connected in each of the sliding grooves (13), the slider (12) is fixedly connected to the limit block (10), and a spring (14) is fixed between the receiving groove (9) and the limit block (10).

4. The low-impedance copper-aluminum hybrid power connection terminal according to claim 2, characterized in that: The outer side of the limit block (10) is provided with a second arc-shaped surface (11), and the bottom wall of the wire trough (3) is provided with a first arc-shaped surface (7).

5. The low-impedance copper-aluminum hybrid power connection terminal according to claim 1, characterized in that: The connection portion (2), the first side plate (1) and the second side plate (6) are an integrated structure and form a complete U-shaped structure.

6. The low-impedance copper-aluminum hybrid power connection terminal according to claim 1, characterized in that: The diameter of the groove (4) is greater than the diameter of the threaded hole (5).

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