Power terminal
By using an L-shaped mounting plate and an alternating DC- and DC+ terminal structure, the problem of high parasitic inductance in power terminals is solved, achieving the effect of reducing parasitic inductance and improving chip reliability.
Patent Information
- Application Number
- CN202520326275.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-02-27
AI Technical Summary
The high parasitic inductance of the existing power terminal circuit leads to high pulse voltage spikes, increasing the likelihood of chip breakdown and lower reliability.
A power terminal is designed with an L-shaped mounting plate and staggered DC- and DC+ terminals. By connecting components and staggered tail structures, the magnetic fields generated by current changes are reduced to cancel each other out, thereby reducing parasitic inductance.
It effectively reduces the module's parasitic inductance by 6-8nH, improving the stability and reliability of the chip's operating voltage.
Smart Images
Figure CN223797570U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to electrical equipment technical field especially relates to a power terminal. BACKGROUND
[0002] The main role of the power terminal is to ensure the connection between high-power circuits and conductive materials is safe and stable, and is convenient for maintenance and replacement. Power terminals are usually used in high-power circuits or situations that require high current transmission, such as mechanized equipment, automotive circuits, marine circuits, and solar panels. They ensure the safety and reliability of current transmission by providing a secure and stable connection.
[0003] The existing HP1DC6i packaged power terminals on the market generally have high parasitic inductance, generally reaching 16-20nH. Due to the turn-off characteristics of power devices, the high pulse voltage spikes generated by the high parasitic inductance of the loop will limit the chip operating voltage, increase the possibility of breakdown, and reduce reliability. SUMMARY
[0004] The utility model discloses a power terminal, solve the problem that the existing power terminal loop high parasitic inductance produces high pulse voltage spike and will lead to chip operating voltage limit, breakdown possibility increases, reliability is lower.
[0005] To achieve the above object, the utility model provides a power terminal, including first installation board, second installation board, a plurality of first installation terminal, a plurality of second installation terminal and a plurality of connecting components, the cross section of first installation board and second installation board all presents L shape setting, first installation board sets at the top of second installation board, a plurality of first installation terminal is fixedly connected with first installation board, and is evenly arranged in one side of first installation board, a plurality of second installation terminal is fixedly connected with second installation board, and is evenly arranged in one side of second installation board, a plurality of connecting components are evenly arranged between first installation board and second installation board.
[0006] Among them, each connecting component includes a threaded sleeve, a threaded rod and two limit blocks, the threaded sleeve is fixedly connected with the second installation board and located on the surface of the second installation board, one end of the threaded rod is rotatably connected with the first installation board, the other end of the threaded rod is threadedly connected with the threaded sleeve, and the two limit blocks are fixedly connected with the threaded rod and located on both sides of the first installation plate.
[0007] Among them, the power terminal further includes a first connecting tail and a second connecting tail, the first connecting tail is fixedly connected with the first installation plate and located on one side of the first installation plate, and the second connecting tail is fixedly connected with the second installation plate and evenly arranged on one side of the second installation plate.
[0008] The first mounting terminal and the second mounting terminal are arranged in an interlaced manner, and the first mounting terminal and the second mounting terminal are arranged on the same horizontal plane, and the first mounting terminal and the second mounting terminal are provided with mounting holes on the surfaces.
[0009] The first connecting tail and the second connecting tail are arranged on the same plane, and the two first connecting tails are arranged between the two second connecting tails.
[0010] The utility model discloses a power terminal, the cross section of first mounting panel and second mounting panel all presents L shape setting, the first mounting panel sets up the top of second mounting panel, a plurality of first mounting terminal is connected with first mounting panel fixedly, and is evenly arranged on one side of first mounting panel, a plurality of second mounting terminal is connected with second mounting panel fixedly, and is evenly arranged on one side of second mounting panel, a plurality of connecting assemblies are evenly arranged between first mounting panel and second mounting panel, the first mounting terminal is DC terminal, and the second terminal is DC+ terminal, when the loop current flows into the first terminal from the second terminal, the magnetic field produced due to current variation can offset each other, can effectively reduce self -induction effect and reduce the parasitic inductance of module, compared with traditional vertical stacking terminal scheme, can effectively reduce 6-8nH parasitic inductance. BRIEF DESCRIPTION OF DRAWINGS
[0011] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.
[0012] Figure 1 It is the structural diagram of the power terminal of the utility model.
[0013] Figure 2 It is the front view of the power terminal of the utility model.
[0014] Figure 3 It is the A-A line section view of the power terminal of the utility model. Figure 2
[0015] Figure 4 It is the B structure schematic view of the power terminal of the utility model. Figure 3
[0016] 1-first mounting plate, 2-second mounting plate, 3-first mounting terminal, 4-second mounting terminal, 5-threaded sleeve, 6-threaded rod, 7-limiting block, 8-first connecting tail, 9-second connecting tail, 10-mounting hole. DETAILED DESCRIPTION
[0017] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.
[0018] Please refer to Figures 1 to 4 The present application provides a kind of power terminal, including first mounting plate 1, second mounting plate 2, a plurality of first mounting terminal 3, a plurality of second mounting terminal 4 and a plurality of connecting components, the cross section of the first mounting plate 1 and the second mounting plate 2 are all presented L shape arrangement, the first mounting plate 1 is arranged above the second mounting plate 2, a plurality of the first mounting terminal 3 is fixedly connected with the first mounting plate 1, and is evenly arranged in one side of the first mounting plate 1, a plurality of the second mounting terminal 4 is fixedly connected with the second mounting plate 2, and is evenly arranged in one side of the second mounting plate 2, a plurality of the connecting components are evenly arranged between the first mounting plate 1 and the second mounting plate 2.
[0019] In the embodiment, the first mounting terminal 3 is DC-terminal, the second terminal is DC+ terminal, when loop current flows from the second terminal into the first terminal, the magnetic field generated by current change can offset each other, can effectively reduce self-induction effect and thus reduce the parasitic inductance of module, compared with traditional no vertical laminated terminal scheme, can effectively reduce 6-8nH parasitic inductance.
[0020] Further, each connecting component includes a threaded sleeve 5, a threaded rod 6 and two limiting blocks 7, the threaded sleeve 5 is fixedly connected with the second mounting plate 2 and located on the surface of the second mounting plate 2, one end of the threaded rod 6 is rotatably connected with the first mounting plate 1, the other end of the threaded rod 6 is threadedly connected with the threaded sleeve 5, and two limiting blocks 7 are fixedly connected with the threaded rod 6 and located on both sides of the first mounting plate 1.
[0021] In the embodiment, when installing, the first mounting plate 1 is aligned with the second mounting plate 2, the threaded rod 6 is rotated by the limiting block 7, the threaded rod 6 extends into the interior of the threaded sleeve 5 to fix the second mounting plate 2 inside the first mounting plate 1.
[0022] Further, the power terminal further comprises a first connecting tail 8 and a second connecting tail 9, the first connecting tail 8 is fixedly connected with the first mounting plate 1 and located on one side of the first mounting plate 1, and the second connecting tail 9 is fixedly connected with the second mounting plate 2 and uniformly arranged on one side of the second mounting plate 2.
[0023] In the embodiment, the first connecting tail 8 and the second connecting tail 9 are electrically welded with a circuit, compared with the prior art, the first connecting tail 8 and the second connecting tail 9 increase the welding area by 10% and the terminal overcurrent and heat transfer capacity by 10%.
[0024] Further, the first mounting terminal 3 and the second mounting terminal 4 are arranged in a staggered manner, and the first mounting terminal 3 and the second mounting terminal 4 are arranged on the same horizontal plane, and the surfaces of the first mounting terminal 3 and the second mounting terminal 4 are provided with mounting holes 10.
[0025] In the embodiment, the first mounting terminal 3 and the second mounting terminal 4 offset the magnetic field generated by the current change, and facilitate installation.
[0026] Further, the first connecting tail 8 and the second connecting tail 9 are arranged on the same plane, and the two first connecting tails 8 are arranged between the two second connecting tails 9.
[0027] In the embodiment, after the first mounting plate 1 and the second mounting plate 2 are connected, the first connecting tail 8 and the second connecting tail 9 are above the same horizontal plane to facilitate welding with the electric circuit.
[0028] The above disclosure is only a preferred embodiment of the utility model, of course, cannot be limited by the scope of the utility model, and those skilled in the art can understand that the above-mentioned embodiment can be implemented by the whole or part of the process, and the equivalent changes made according to the utility model claim still belong to the range covered by the utility model.
Claims
1. A power terminal, characterized in that, comprising a first mounting plate, a second mounting plate, a plurality of first mounting terminals, a plurality of second mounting terminals and a plurality of connecting assemblies, the first mounting plate and the second mounting plate are both in L-shaped cross section, the first mounting plate is arranged above the second mounting plate, a plurality of first mounting terminals are fixedly connected with the first mounting plate and are uniformly arranged on one side of the first mounting plate, a plurality of second mounting terminals are fixedly connected with the second mounting plate and are uniformly arranged on one side of the second mounting plate, and a plurality of connecting assemblies are uniformly arranged between the first mounting plate and the second mounting plate.
2. The power terminal of claim 1, characterized in that, each connecting assembly comprises a threaded sleeve, a threaded rod and two limiting blocks, the threaded sleeve is fixedly connected with the second mounting plate and located on the surface of the second mounting plate, one end of the threaded rod is rotatably connected with the first mounting plate, the other end of the threaded rod is threadedly connected with the threaded sleeve, and the two limiting blocks are fixedly connected with the threaded rod and located on both sides of the first mounting plate.
3. The power terminal of claim 2, characterized in that, the power terminal further comprises a first connecting tail and a second connecting tail, the first connecting tail is fixedly connected with the first mounting plate and located on one side of the first mounting plate, and the second connecting tail is fixedly connected with the second mounting plate and uniformly arranged on one side of the second mounting plate.
4. The power terminal of claim 3, characterized in that, the first mounting terminals and the second mounting terminals are arranged in an interlaced manner, the first mounting terminals and the second mounting terminals are arranged on the same horizontal plane, and the surfaces of the first mounting terminals and the second mounting terminals are both provided with mounting holes.
5. The power terminal of claim 4, characterized in that, the first connecting tail and the second connecting tail are arranged on the same plane, and correspondingly two first connecting tails are arranged between correspondingly two second connecting tails.