Fully-wrapped shielding type vertical high-current socket
By setting notches on the pins of the insulating shell and using terminals made of high-conductivity copper, combined with the snap-fit design of the metal shell and the detachable design of the inner shell, the problem of DC power socket pins detaching from the solder joints is solved, improving the product's stability and safety.
Patent Information
- Application Number
- CN202520314610.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-02-25
AI Technical Summary
The pins of existing DC power sockets are prone to detaching from the solder joints, resulting in poor product stability and potential safety hazards.
Notches are provided on the pins of the insulating shell, and the positive and negative terminals are made of high-conductivity copper material. A stable connection is achieved through the snap-fit of the metal shell and the detachable design of the inner shell.
This improves the stability and safety of the power socket and circuit board, avoids the risk of pins detaching from solder joints, and enhances the reliability and aesthetics of the product.
Smart Images

Figure CN223797568U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power input / output connector technology, and in particular to a fully shielded vertical high-current socket. Background Technology
[0002] DC power sockets are commonly used as power supply or charging interfaces for electronic products. They are generally used in conjunction with the output plug of a DC power adapter. The power adapter steps down and rectifies the 220V AC power before outputting it, and then the electronic product is powered or charged through the DC power socket on the electronic product.
[0003] The utility model patent with patent application number CN202222646060.3 discloses a high-current DC power socket. The bottom of the right side wall and the left side wall of the insulating shell of the power socket are respectively provided with two pins extending downward. The pins are flat sheet-like structures. In actual use, after the pins of the power socket are soldered to the circuit board, the pins of the power socket are easy to detach from the solder joint when the user touches them accidentally. It has the defect of poor product stability and poses a certain safety hazard. Utility Model Content
[0004] The purpose of this invention is to provide a fully shielded vertical high-current socket. This invention increases the stability of the product, ensuring that the power socket is firmly connected to the circuit board, and greatly improving the reliability and safety of the product.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a fully shielded vertical high-current socket, comprising an inner shell, an inner retaining ring mounted on the inner shell, a positive terminal, a negative terminal, and a metal outer shell mounted on the outside of the inner shell; the bottom of the metal outer shell is provided with multiple pins, and each pin has at least one notch on its surface.
[0006] By adopting the above technical solution, notches are set on multiple pins of the insulating shell. This pin structure allows solder to accumulate in the notches during soldering, increasing the product's stability and ensuring that the power socket is firmly connected to the circuit board, greatly improving the product's reliability and safety.
[0007] The present invention is further configured such that each pin has two notches, and the two notches are symmetrically arranged on both sides of the pin.
[0008] By adopting the above technical solution, the notches are symmetrically arranged on both sides of the pin, the pin is subjected to more uniform force, and the connection is more stable.
[0009] The present invention is further configured such that the notch is a semi-circular, semi-elliptical, conical, or rectangular structure.
[0010] By adopting the above technical solution, the shape of the notch can be set as needed to achieve product diversity.
[0011] The present invention is further configured such that a pin is provided at the bottom of each side of the outer casing.
[0012] By adopting the above technical solution, the pins are evenly distributed, and the product is subjected to uniform force when connected, which further increases the product's stability.
[0013] The present invention is further configured such that both the positive and negative terminals are made of high-conductivity copper material.
[0014] By adopting the above technical solution, the positive and negative terminals of the power supply made of high-conductivity copper can withstand a maximum current of 25A, thus preventing the terminals from burning out due to excessive current.
[0015] The present invention is further configured such that the metal shell includes an upper base plate and four side plates disposed on the four sides of the upper base plate. The upper base plate is provided with a through hole for the inner shell portion to extend to the outside. The four side plates form a rectangular structure, and multiple locking blocks are provided on the front and rear side plates, and multiple hooks that engage with the corresponding locking blocks are provided on the left and right side plates.
[0016] By adopting the above technical solution, the metal casing is assembled using a snap-fit method.
[0017] The present invention is further provided that the front and rear side plates are provided with concave portions for the card block and the corresponding card hook to be fully embedded.
[0018] By adopting the above technical solution, the hooks are prevented from protruding from the surface of the metal shell, resulting in a more aesthetically pleasing structure that is also less likely to be pulled out by the shell, thus improving structural reliability.
[0019] The present invention is further configured such that the inner shell includes a base and a rear cover, the rear cover abuts against the bottom of the base, the base is provided with a plurality of limiting steps, and the rear cover is provided with a plurality of elastic barbs for hooking the corresponding limiting steps.
[0020] By adopting the above technical solution, the detachable design of the inner shell is more conducive to the installation of the retaining ring, positive terminal and negative terminal, and the two adopt the hook-and-loop connection method, which makes assembly very convenient.
[0021] The present invention is further provided in that the outer side of the base is provided with a pressing protrusion for abutting against the inner wall of the metal shell, the pressing protrusion is arranged vertically, and the upper end of the pressing protrusion is provided with a guide slope.
[0022] By adopting the above technical solution, the pressing convex strip is pressed against the inner wall of the metal shell, which makes the fit between the inner shell and the metal shell more compact, avoids loosening of the fit, and improves the structural stability.
[0023] The present invention is further configured such that the side of the inner shell is provided with at least two slots, the insulating outer shell is provided with an opening corresponding to the slots, and the bottom side of the opening is provided with a card that is inclined inward and engages with the slot.
[0024] By adopting the above technical solution, the inner shell and the insulating outer shell can be quickly assembled, and the connection structure is very stable. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0026] Figure 2 This is a schematic diagram of the structure of the insulating shell of this utility model;
[0027] Figure 3 This is an exploded view of the entire utility model;
[0028] Figure 4 This is a schematic diagram of the structure of the inner shell of this utility model.
[0029] In the diagram: 1. Outer shell; 2. Inner shell; 3. Inner retaining ring; 4. Positive terminal; 5. Negative terminal; 6. Pin; 7. Notch; 8. Upper substrate; 9. Side plate; 10. Through hole; 11. Locking block; 12. Hook; 13. Recess; 14. Base; 15. Back cover; 16. Limiting step; 17. Elastic barb; 18. Pressing protrusion; 19. Guide slope; 20. Slot; 21. Opening; 22. Card. Detailed Implementation
[0030] 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.
[0031] Example: As attached Figures 1-4The fully shielded vertical high-current socket shown includes an inner shell 2, an inner retaining ring 3 mounted on the inner shell 2, a positive terminal 4, a negative terminal 5, and a metal outer shell 1 mounted outside the inner shell 2. The structure of the inner retaining ring 3, the positive terminal 4, and the negative terminal 5 mounted on the inner shell 2 is a mature technology in the market, generally using plug-in or thermoforming connection methods; its specific structure will not be described in detail here. The bottom of the metal outer shell 1 has multiple pins 6, and the surface of each pin 6 has at least one notch 7. The notches 7 on the multiple pins 6 of the insulating outer shell 1 allow solder to accumulate in the notches 7 during soldering, increasing the product's stability and ensuring that the power socket is firmly connected to the circuit board, greatly improving the product's reliability and safety.
[0032] As attached Figure 1 and attached Figure 2 As shown, in this embodiment, each pin 6 has two notches 7, and the two notches 7 are symmetrically arranged on both sides of the pin 6. The notches 7 are symmetrically arranged on both sides of the pin 6, forming a gourd-shaped foot structure, which makes the pin 6 more evenly stressed and the connection more stable.
[0033] The notch 7 is a semi-circular, semi-elliptical, conical, or rectangular structure, as shown in the attached figure. Figure 2 As shown, in this structure, the notch 7 on pin 6 is semi-circular. Alternatively, the notch 7 on pin 6 can be completely located in the middle of pin 6, and can be circular or polygonal in shape. The shape of the notch 7 can be set as needed to achieve product diversity.
[0034] As attached Figure 1 As shown, a pin 6 is provided on the bottom of each side of the outer casing 1. The pins 6 are evenly distributed, so that the force is evenly distributed when the product is connected, which further increases the stability of the product.
[0035] Both the positive terminal 4 and the negative terminal 5 are made of high-conductivity copper. The high-conductivity copper-based power supply terminals 5 can withstand a maximum current of 25A, preventing the terminals from burning out due to excessive current.
[0036] As attached Figure 2 As shown, the metal casing 1 includes an upper base plate 8 and four side plates 9 disposed on the four sides of the upper base plate 8. The four side plates 9 and the upper base plate 8 are integrally formed. The upper base plate 8 has through holes 10 for the inner casing 2 to extend to the outside. The four side plates 9 form a rectangular structure, with the sides of two adjacent side plates 9 fitting together. Multiple locking blocks 11 are provided on the front and rear side plates 9, and multiple hooks 12 are provided on the left and right side plates 9 to engage with the corresponding locking blocks 11. The metal casing 1 uses the hooks 12 for fastening, making assembly easy.
[0037] As attached Figure 2As shown, the front and rear side plates 9 are provided with recessed portions 13 for the complete insertion of the locking block 11 and the corresponding locking hook 12. This prevents the locking hook 12 from protruding from the surface of the metal shell 1, making the structure more aesthetically pleasing and less likely to be pulled out by the shell 1, thus improving structural reliability.
[0038] As attached Figure 3 and attached Figure 4 As shown, the inner housing 2 includes a base 14 and a rear cover 15. The rear cover 15 abuts against the bottom of the base 14. The base 14 is provided with multiple limiting steps 16, and the rear cover 15 is provided with multiple elastic barbs 17 for hooking onto the corresponding limiting steps 16. The detachable design of the inner housing 2 facilitates the installation of the retaining ring, the positive terminal 4, and the negative terminal 5, and the two are connected by barbs, making assembly very convenient.
[0039] As attached Figure 4 As shown, the outer side of the base 14 is provided with a pressing protrusion 18 for abutting against the inner wall of the metal shell 1. The pressing protrusion 18 extends vertically, and the upper end of the pressing protrusion 18 is provided with a guide slope 19. The pressing protrusion 18 abuts against the inner wall of the metal shell 1, which can make the fit between the inner shell 2 and the metal shell 1 more compact, avoid loosening of the fit, and improve the structural stability.
[0040] As attached Figure 1 and attached Figure 2 As shown, the inner housing 2 has at least two slots 20 on its side, and the insulating outer shell 1 has an opening 21 corresponding to the slots 20. The bottom side of the opening 21 has an inwardly inclined card 22 that engages with the slots 20. The card 22 and the insulating outer shell 1 are an integral structure, formed by bending. This design allows for rapid assembly of the inner housing 2 and the insulating outer shell 1, and the connection structure is very stable.
Claims
1. A fully shielded vertical high-current socket, comprising an inner housing (2), an inner retaining ring (3) mounted on the inner housing (2), a positive terminal (4), a negative terminal (5), and a metal outer shell (1) mounted on the outside of the inner housing (2); characterized in that: The metal casing (1) has multiple pins (6) at its bottom, and each pin (6) has at least one notch (7) on its surface.
2. The fully shielded vertical high-current socket according to claim 1, characterized in that: Each pin (6) has two notches (7), and the two notches (7) are symmetrically arranged on both sides of the pin (6).
3. The fully shielded vertical high-current socket according to claim 1, characterized in that: The notch (7) is a semi-circular, semi-elliptical, conical, or rectangular structure.
4. The fully shielded vertical high-current socket according to claim 1, characterized in that: A pin (6) is provided at the bottom of each side of the outer casing (1).
5. The fully shielded vertical high-current socket according to claim 1, characterized in that: Both the positive terminal (4) and the negative terminal (5) are made of high-conductivity copper.
6. The fully shielded vertical high-current socket according to claim 1, characterized in that: The metal shell (1) includes an upper base plate (8) and four side plates (9) disposed on the four sides of the upper base plate (8). The upper base plate (8) has through holes (10) for the inner shell (2) to extend to the outside. The four side plates (9) form a rectangular structure. Multiple latches (11) are provided on the front and rear side plates (9), and multiple hooks (12) that engage with the corresponding latches (11) are provided on the left and right side plates (9).
7. The fully shielded vertical high-current socket according to claim 1 or 6, characterized in that: The front and rear side plates (9) are provided with recesses (13) for the complete insertion of the card block (11) and the corresponding hook (12).
8. The fully shielded vertical high-current socket according to claim 7, characterized in that: The inner shell (2) includes a base (14) and a rear cover (15). The rear cover (15) is pressed against the bottom of the base (14). The base (14) is provided with multiple limiting steps (16). The rear cover (15) is provided with multiple elastic barbs (17) for hooking the corresponding limiting steps (16).
9. The fully shielded vertical high-current socket according to claim 6, characterized in that: The base (14) has a pressing protrusion (18) on its outer side for abutting against the inner wall of the metal shell (1). The pressing protrusion (18) extends vertically and has a guide slope (19) at its upper end.
10. The fully shielded vertical high-current socket according to claim 1, characterized in that: The inner housing (2) has at least two slots (20) on its side, and the insulating outer shell (1) has an opening (21) corresponding to the slots (20). The bottom side of the opening (21) has a card (22) that is inclined inward and engages with the slots (20).
Citation Information
Patent Citations
A high-current DC power socket
CN218828026U