Power connection terminal with high assembly stability and automobile charging plug
By designing the power connection terminal structure consisting of the main section, male terminal, female terminal, limiting ring, and telescopic section, the problem of poor assembly stability of the power connection terminal is solved, achieving a stable connection between the power connection terminal and the car charging plug, preventing loosening and leakage, and extending service life.
Patent Information
- Application Number
- CN202422945676.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-11-29
AI Technical Summary
The existing electrical terminals have poor assembly stability, which makes them prone to loosening after assembly with the car charging plug, affecting safe use.
A power terminal structure including a main section, male terminal, female terminal, limiting ring, and telescopic section was designed. The different diameters of the limiting ring and the insulation layer design enhance the assembly stability, and the connection is ensured to be tight by embedding and fixing the connecting wires in the wire groove.
It improves the tightness of the connection between the power terminal and the car charging plug, preventing loosening, avoiding leakage, extending service life, and enhancing safety.
Smart Images

Figure CN223771482U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of electrical terminals and car charging plugs, specifically to an electrical terminal and car charging plug with strong assembly stability. Background Technology
[0002] With the development of society and economy and technological progress, and the improvement of people's living standards, the application demand for various portable car chargers is becoming increasingly widespread, exhibiting characteristics of multifunctionality, portability, and style. Car chargers are accessories designed to allow car owners to conveniently charge digital products anytime, anywhere using the car's power supply. Some high-end car chargers generally include two USB ports, allowing simultaneous charging of two digital products. These products typically feature overload protection, short circuit protection, high voltage input protection, and high temperature protection—four safety protection functions—ensuring safe use. Car chargers can be used in vehicles and at home, achieving a three-in-one multifunctional purpose of car charging, direct charging, and USB charging. Car chargers are accessories designed to conveniently charge digital products anytime, anywhere using the car's power supply, saving users battery costs. These products typically feature overload protection, short circuit protection, high voltage input protection, and high temperature protection—four safety protection functions—ensuring safe use. Car chargers generally include power terminals and a car charging plug.
[0003] However, existing electrical connectors have poor assembly stability, making them prone to loosening after assembly with car charging plugs. In severe cases, this can lead to partial leakage and affect safe use. Therefore, we need to propose a power connector and car charging plug with strong assembly stability to overcome the above problems. Utility Model Content
[0004] To address the aforementioned shortcomings in the existing technology, the purpose of this utility model is to provide a power connection terminal and an automotive charging plug with strong assembly stability. This solves the problem that the existing power connection terminals have poor assembly stability, making them prone to loosening after assembly with the automotive charging plug, which can lead to partial leakage and affect safe use in severe cases.
[0005] The technical solution adopted by this utility model to achieve the above-mentioned objective is as follows: a power connector with strong assembly stability, comprising a power connector including a main segment, a male terminal connected to a first end of the main segment, and a female terminal connected to a second end of the main segment. A limiting ring is sleeved on the outer wall of the main segment. A connecting wire for fixing the two power connectors together is detachably connected to the male terminal. A telescopic segment is also provided between the second end of the main segment and the male terminal.
[0006] To further improve the ease of use of the power terminal with strong assembly stability, the present invention adopts the following solution: the telescopic section and the main section are slidably sleeved together.
[0007] To further improve the ease of use of the power terminal with strong assembly stability, the present invention adopts the following solution: the limiting ring includes a first limiting ring, a second limiting ring, and a third limiting ring.
[0008] To further improve the ease of use of the power terminals with strong assembly stability, the present invention adopts the following solution: the first limiting ring, the second limiting ring, and the third limiting ring are set with different diameters.
[0009] To further improve the ease of use of the power terminals with strong assembly stability, the present invention adopts the following solution: the outer walls of the first limiting ring, the second limiting ring, and the third limiting ring are all covered with an insulating layer.
[0010] This utility model also provides an automotive charging plug, which includes a base plate, a base, a plug housing, and a positioning bracket. The base plate is provided with the base, and the plug housing is provided on the base. Several anti-slip strips are provided on the outer surface of the plug housing, and a signal light for sensing electrical signals is connected to the plug housing. An insertion cavity for insertion is formed inside the plug housing, and a positioning bracket is provided at the bottom of the plug housing. The upper part of the positioning bracket has two rows of terminal slots, and a wire-fixing groove is provided between every two pairs of adjacent terminal slots.
[0011] The car charging plug has multiple power terminals connected to it.
[0012] The terminal slot and the power terminal are fitted together.
[0013] The fixed groove and the connecting wire are fitted together.
[0014] The beneficial effects of this utility model are: it has good assembly stability, effectively enhances the connection between the power terminal and the car charging plug, avoids loosening after assembly, effectively prevents partial leakage, effectively extends the service life of the power terminal, and improves safety. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the main structure of the car charging plug of this utility model;
[0016] Figure 2 This is a top view of the automotive charging plug of this utility model.
[0017] Figure 3 A top view of the automotive charging plug of this utility model after the power connection terminal has been installed;
[0018] Figure 4 A side cross-sectional view of the car charging plug of this utility model after the power connection terminal is installed;
[0019] Figure 5 This is a schematic diagram of the structure of the electrical terminal of this utility model.
[0020] In the diagram: 1. Car charging plug, 11. Base plate, 12. Base, 13. Plug housing, 14. Signal light, 15. Anti-slip strip, 16. Positioning bracket, 17. Terminal slot, 18. Wire fixing slot, 2. Power connection terminal, 21. Male terminal, 22. Telescopic section, 23. Main section, 24. Female terminal, 25. First limiting ring, 26. Second limiting ring, 27. Third limiting ring, 28. Connecting wire. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figures 1 to 2 This embodiment provides an automotive charging plug 1, comprising a base plate 11 (a PCB board, which connects various electronic components via wires to ensure reliable and stable electrical signal transmission between the charging plug 1 and the various electronic components), a base 12, a plug housing 13, and a positioning bracket 16. The base plate 11 is provided with the base 12, and the plug housing 13 is provided on the base 12. The outer surface of the plug housing 13 is provided with several anti-slip strips 15, and an indicator light 14 is connected to the plug housing 13. The indicator light 14 senses the electrical signal to remind the user of the power usage status. The interior of the plug housing 13 forms a plugging cavity for insertion. A positioning bracket 16 is provided at the bottom inner part of the plug housing 13. The upper part of the positioning bracket 16 has double rows of terminal slots 17, and a wire-fixing groove 18 is provided between every two pairs of adjacent terminal slots 17.
[0023] Please see Figures 3 to 4 The car charging plug 1 is connected to a plurality of the power terminals 2. Each of the terminal slots 17 is adapted to each of the power terminals 2 for stable connection of the power terminals 2, and the corresponding wire fixing slots 18 are adapted to each of the connecting wires 28 for further reinforcement of the power terminals 2 on the car charging plug 1, thereby effectively improving the overall assembly stability.
[0024] Please see Figure 5 This embodiment provides a power connector with high assembly stability, comprising a power connector 2. The power connector 2 includes a main segment 23, with a male terminal 21 connected to a first end of the main segment 23 and a female terminal 24 connected to a second end of the main segment 23. A limiting ring is fitted onto the outer wall of the main segment 23. A connecting wire 28 for fixing the two power connectors 2 together is detachably connected to the male terminal 21.
[0025] Specifically, a telescopic section 22 is provided between the second end of the main section 23 and the male terminal 21, and the telescopic section 22 is slidably sleeved with the main section 23. By adjusting the distance of the telescopic section 22 relative to the main section 23, the overall length of the power terminal 2 can be changed, so that the power terminal 2 can be adapted to various car charging plugs 1.
[0026] Specifically, the limiting ring includes a first limiting ring 25, a second limiting ring 26, and a third limiting ring 27. Multiple sets of limiting rings can be combined or separated for use, allowing for the selection of corresponding limiting rings based on the different lengths of the electrical terminals 2, thereby improving the installation stability of the electrical terminals 2.
[0027] More specifically, the first limiting ring 25, the second limiting ring 26, and the third limiting ring 27 are configured with different diameters to accommodate electrical terminals 2 of different lengths.
[0028] More specifically, the outer walls of the first limiting ring 25, the second limiting ring 26, and the third limiting ring 27 are all covered with an insulating layer. The insulating layer enhances the mechanical strength and effectively prevents current leakage, ensuring the normal transmission of electricity.
[0029] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.
[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. An electric terminal with strong assembly stability, comprising an electric terminal (2), characterized in that: the electric terminal (2) comprises a main section (23); a first end of the main section (23) is connected with a male terminal (21); a second end of the main section (23) is connected with a female terminal (24); an outer side wall of the main section (23) is sleeved with a limiting ring; the male terminal (21) is detachably connected with a connecting line (28) for fixing the connection between two electric terminals (2); and a telescopic section (22) is arranged between the second end of the main section (23) and the male terminal (21). The telescopic section (22) is slidingly sleeved with the main section (23). The limiting ring comprises a first limiting ring (25), a second limiting ring (26) and a third limiting ring (27). The first limiting ring (25), the second limiting ring (26) and the third limiting ring (27) are arranged with different diameters. The outer walls of the first limiting ring (25), the second limiting ring (26) and the third limiting ring (27) are attached with an insulating layer. The automobile charging plug (1) comprises a bottom plate (11), a base (12), a plug outer shell (13) and a positioning seat (16). The base (12) is arranged on the bottom plate (11), and the plug outer shell (13) is arranged on the base (12).
2. The power terminal with strong assembly stability according to claim 1, characterized in that: The outer surface of the plug outer shell (13) is provided with a plurality of anti-skid strips (15), and a signal lamp (14) for electric signal induction is connected to the plug outer shell (13).
3. The power terminal with strong assembly stability according to claim 1, characterized in that: The plug outer shell (13) forms a plug cavity inside for plug-in operation.
4. The power terminal with strong assembly stability according to claim 3, characterized in that: The inner bottom of the plug outer shell (13) is provided with a positioning seat (16), the upper part of the positioning seat (16) is provided with double-row arranged terminal grooves (17), and a wire fixing groove (18) is arranged between every two pairs of adjacent terminal grooves (17).
5. The power terminal with strong assembly stability according to claim 3, characterized in that: The electric terminal with strong assembly stability of any one of claims 1-5 is further included.
6. An automotive charging plug, characterized by: The terminal grooves (17) are adaptively installed between the electric terminals (2). The wire fixing grooves (18) are adaptively embedded with the connecting lines (28). 7. The automotive charging plug of claim 6, wherein: 8. The automotive charging plug of claim 7, wherein: 9. The automotive charging plug of claim 8, wherein: