An electrical connection terminal and automobile charging plug
By designing universal power terminals for both internal and external use, and employing short and long core pillar structures, the problem of single-function power terminals is solved, enabling flexible connection and convenient use of internal and external electrical appliances.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN SHIYUNJIA IND INVESTMENT CO LTD
- Filing Date
- 2024-10-15
- Publication Date
- 2026-06-02
AI Technical Summary
The existing power terminal structure has a single function, lacks universal compatibility, and has poor flexibility in its use with car charging plugs.
Design a universal power terminal that can be used both internally and externally. It adopts a short core column and a long core column structure, and is equipped with a detachable upper cover and a lower cover. Combined with a socket, a column sleeve and a fastening assembly, it enables flexible connection of internal and external electrical appliances.
It enables universal electrical connections for both internal and external electrical appliances, improving the ease of use of the power terminals and the flexibility of car charging plugs.
Smart Images

Figure CN224318742U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of electrical terminals and car charging plugs, specifically a universal electrical terminal and car charging plug. Background Technology
[0002] With the development of society and economy, technological progress, and the improvement of people's living standards, the demand for various portable car chargers is becoming increasingly widespread. Car chargers are accessories designed to allow car owners to conveniently charge their digital products anytime, anywhere using the car's power supply. Some high-end car chargers typically include two USB ports, allowing simultaneous charging of two digital devices. These products generally 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 multi-functional 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 battery costs. These products generally 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 power connector structures are functionally limited, lacking versatility for both internal and external use, and offering limited flexibility in use with automotive charging plugs. Therefore, we need to propose a universally compatible power connector and automotive charging plug to overcome these problems. Utility Model Content
[0004] In view of the above-mentioned shortcomings in the existing technology, the purpose of this utility model is to provide a universal power terminal and car charging plug, so as to solve the problems of the existing power terminal having a single function, lacking universality, and having poor flexibility in use with car charging plugs.
[0005] The technical solution adopted by this utility model to achieve the above-mentioned objective is as follows: a universal power terminal, comprising an upper cover, a lower cover, and four sets of core pillar structures assembled between the upper cover and the lower cover. The upper cover includes two first upper covers and two second upper covers, the two second upper covers being detachably connected, and the two first upper covers being detachably connected to opposite sides of the two second upper covers. The lower cover includes two first lower covers and two second lower covers, the two second lower covers being detachably connected, and the two first lower covers being detachably connected to opposite sides of the two second lower covers. Each core pillar structure has a short core pillar for internal use at its first end and a long core pillar for external use at its second end.
[0006] To further improve the ease of use of the universal power terminal, the present invention adopts the following solution: each of the short core posts is detachably connected to the first end of the core post structure via a socket.
[0007] To further improve the ease of use of the universal internal and external power terminals, the present invention adopts the following solution: each of the long core columns is detachably connected to the second end of the core column structure via a column sleeve.
[0008] To further improve the ease of use of the universal internal and external power terminals, the present invention adopts the following solution: the diameter of the long core post is larger than the diameter of the short core post.
[0009] To further improve the ease of use of the universal internal and external power terminals, the present invention adopts the following solution: an assembly tray is provided on the surface of the upper cover.
[0010] To further improve the ease of use of the universal internal and external power terminals, the present invention adopts the following solution: the first upper cover and the first lower cover are provided with a fastening assembly.
[0011] To further improve the ease of use of the universal internal and external power terminals, the present invention adopts the following solution: the fastening assembly includes a slot and a hook, one of which is disposed on the first upper cover and the other of which is disposed on the first lower cover.
[0012] A car charging plug includes a car charging plug, which has a plug, plug channels, power contact holes, power contact posts, guide plates, slide rails, and slide pieces. One end of the car charging plug has the plug, and the plug has several plug channels connected to it. Correspondingly, several power contact posts are inserted into the plug channels through the power contact holes. Both ends of the plug have guide plates for limiting their position, and the other end of the car charging plug has a slide rail for slidingly assembling the slide pieces.
[0013] To further improve the ease of use of car charging plugs, the present invention adopts the following solution: a circular groove is formed on the sliding plate.
[0014] The beneficial effects of this utility model are:
[0015] (a) This type of universal electrical terminal is equipped with two types of core posts of different lengths for electrical connection, which can realize universal electrical connection of electrical appliances.
[0016] (ii) The car charging plug has a structure that allows for sliding and rotating connection of the electrical terminals, and the electrical connection direction of the terminals is easy to adjust. Attached Figure Description
[0017] Figure 1This is a schematic diagram of the structure according to the first embodiment of the present invention;
[0018] Figure 2 This is a structural schematic diagram of the second embodiment of the present invention;
[0019] Figure 3 This is a schematic diagram of the structure of the car charging plug of this utility model;
[0020] Figure 4 This is a schematic diagram of the front structure of the electrical terminal of this utility model;
[0021] Figure 5 This is a schematic diagram of the reverse side structure of the electrical terminal of this utility model;
[0022] Figure 6 This is an exploded structural diagram of the electrical terminal of this utility model;
[0023] Figure 7 This is a schematic diagram showing the disassembled structure of the electrical terminal of this utility model.
[0024] In the diagram: 1. Car charging plug, 11. Plug, 12. Plug channel, 13. Power contact hole, 14. Power contact post, 15. Guide plate, 16. Slide rail, 17. Slide piece, 18. Circular groove, 2. Power terminal, 21. First upper cover, 22. First lower cover, 23. Assembly plate, 24. Second upper cover, 25. Second lower cover, 26. Short core post, 27. Socket, 28. Post sleeve, 29. Long core post, 3. Slot, 4. Hook. Detailed Implementation
[0025] 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.
[0026] Please see Figures 1 to 2 This type of car charging plug also has a power connection terminal. Its working principle is as follows: When in use, first, remove the slider 17 of the car charging plug 1 from the slide rail 16. According to the usage requirements, select different length models of the power connection terminal 2. When the power connection terminal 2 is short core 26, the short core 26 can be placed at the connection end. Then, rotate the mounting plate 23 on the power connection terminal 2 to connect with the circular groove 18 of the car charging plug 1. Finally, push the slider 17 back into the slide rail 16, and it can be plugged in for use. When the power connection terminal 2 is long core 29, the long core 29 can be connected to the connection end. Then, rotate the mounting plate 23 on the power connection terminal 2 to connect with the circular groove 18 of the car charging plug 1. Finally, push the slider 17 back into the slide rail 16 for use.
[0027] Please see Figure 3 This embodiment of a car charging plug includes a car charging plug 1. The car charging plug 1 is provided with a plug 11, plug channels 12, power contact holes 13, power contact posts 14, guide plates 15, slide rails 16, and sliders 17. One end of the car charging plug 1 is provided with the plug 11, and the plug 11 is connected to several plug channels 12. The corresponding power contact posts 14 are inserted into the plug channels 12 through the power contact holes 13. Both ends of the plug 11 are provided with guide plates 15 for limiting positioning. The other end of the car charging plug 1 is provided with a slide rail 16 for slidingly assembling the sliders 17. A circular groove 18 is formed on the sliders 17.
[0028] Please see Figures 4 to 7 This embodiment provides a universal internal / external power terminal, including a power terminal 2. The power terminal 2 includes an upper cover, a lower cover, and four sets of core pillar structures assembled between the upper and lower covers. The upper cover includes two first upper covers 21 and two second upper covers 24, which are detachably connected. The two first upper covers 21 are detachably connected to opposite sides of the two second upper covers 24. The lower cover includes two first lower covers 22 and two second lower covers 25, which are detachably connected. The two first lower covers 22 are detachably connected to opposite sides of the two second lower covers 25. Each core pillar structure has a short core pillar 26 for internal use at its first end and a long core pillar 29 for external use at its second end.
[0029] Each of the short core posts 26 is detachably connected to the first end of the core post structure via a socket 27, facilitating replacement.
[0030] Each of the long core pillars 29 is detachably connected to the second end of the core pillar structure via a pillar sleeve 28, which facilitates replacement.
[0031] The diameter of the long core post 29 is larger than the diameter of the short core post 26, so that it can be used for different internal and external electrical connections and has versatility.
[0032] An assembly plate 23 is provided on the surface of the upper cover. The assembly plate 23 is rotatably connected to the circular groove 18 for easy adjustment.
[0033] The first upper cover 21 and the first lower cover 22 are provided with a fastening assembly, which includes a slot 3 and a hook 4, one of which is provided on the first upper cover 21 and the other of which is provided on the first lower cover 22. The fastening assembly improves the fixation of the upper and lower covers during installation.
[0034] 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.
[0035] 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. A universal internal and external power terminal, comprising a power terminal (2), characterized in that: The power terminal (2) includes an upper cover, a lower cover, and four sets of core pillar structures assembled between the upper cover and the lower cover; The upper cover includes two first upper cover (21) and two second upper cover (24), the two second upper cover (24) are detachably connected, and the two first upper cover (21) are detachably connected to the two opposite sides of the two second upper cover (24); The lower cover includes two first lower covers (22) and two second lower covers (25). The two second lower covers (25) are detachably connected, and the two first lower covers (22) are detachably connected to the two opposite sides of the two second lower covers (25). Each of the aforementioned core pillar structures has a short core pillar (26) for internal use at its first end. Each of the aforementioned core pillar structures has a long core pillar (29) at its second end for external use.
2. The universal internal and external power terminal according to claim 1, characterized in that: Each of the short core posts (26) is detachably connected to the first end of the core post structure via a socket (27).
3. The universal internal and external power terminal according to claim 1, characterized in that: Each of the long core columns (29) is detachably connected to the second end of the core column structure via a column sleeve (28).
4. The universal power terminal according to claim 1, characterized in that: The diameter of the long core (29) is greater than the diameter of the short core (26).
5. A universal internal and external power terminal according to claim 1, characterized in that: An assembly plate (23) is provided on the surface of the upper cover.
6. A universal internal and external power terminal according to claim 1, characterized in that: The first upper cover (21) and the first lower cover (22) are provided with a fastening assembly.
7. A universal internal and external power terminal according to claim 6, characterized in that: The fastening assembly includes a slot (3) and a hook (4), one of which is disposed on the first upper cover (21) and the other of which is disposed on the first lower cover (22).
8. A car charging plug, comprising a universal internal and external power terminal as described in any one of claims 1-7, characterized in that: The car charging plug (1) is provided with a plug (11), a plug channel (12), a power contact hole (13), a power contact post (14), a guide plate (15), a slide rail (16), and a slide piece (17). One end of the car charging plug (1) is provided with the plug (11), and the plug (11) is connected to several plug channels (12). The corresponding power contact posts (14) are all inserted into the plug channels (12) through the power contact holes (13). Both ends of the plug (11) are provided with guide pieces (15) for limiting the position. The other end of the car charging plug (1) is provided with a slide rail (16) for sliding assembly of the slide plate (17).
9. A car charging plug according to claim 8, characterized in that: A circular groove (18) is provided on the slider (17).