A power connector

By adding a resistor to the power connector and adjusting the terminal structure, the problems of high material cost and inaccurate power identification in the prior art are solved, achieving the effects of cost reduction and stable identification.

CN224472862UActive Publication Date: 2026-07-07SUZHOU E CONN TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU E CONN TECH
Filing Date
2025-06-12
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing DC PLUG power connectors require an additional set of wires, resulting in high material costs and complex structures. They also cannot identify different power ratings, leading to misidentification and instability.

Method used

A resistor is added between the detection PIN and the negative terminal of the power connector. Different resistor specifications are used to identify different power ratings. The resistor is then soldered to the terminal via a lead wire, eliminating the need for additional wire lead soldering steps.

Benefits of technology

It reduces material and processing costs while achieving accurate identification of different power levels, avoiding misidentification.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224472862U_ABST
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Abstract

The utility model discloses a power connector, including power plug, wire rod and resistance, the power plug includes the plug body, the plug body includes a positive terminal and is located the negative terminal of positive terminal both sides, the plug body still includes the shell, and the shell is wrapped the plug body, and the shell outwardly extending is provided with the detection PIN, the positive terminal and the negative terminal are columnar and are provided with the flat mounting surface in the top, and the mounting surface all is provided with the connecting hole for connecting wire rod, the detection PIN is flaky and is provided with the mounting hole on the detection PIN, and the detection PIN and one of the negative terminal are connected with the resistance in conduction. Through above -mentioned mode, the utility model increases an electric resistance on the detection PIN and the negative pole, and different power uses different specifications electric resistance, and the detection pin does not need to carry out a group of wire rod lead wire again, and the cost can reduce, and the problem of different power can also be identified simultaneously.
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Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a power connector. Background Technology

[0002] Existing DC PLUG power connector products use a method of one positive, two negative, and one detection pin, requiring soldering wires to each pin to achieve charging functionality. Figure 1 As shown, an extra lead needs to be soldered to the detection pin on the finished cable. The extra lead itself increases the material cost, and the extra lead changes the internal structure of the cable, making the internal structure more complex and the cable processing more cumbersome, thus increasing the cost and failing to meet the customer's requirement for low cost. In addition, the existing power connector cannot distinguish and identify the product's output power, and identification needs to be done by the internal mechanism of the laptop, which may result in misidentification and instability.

[0003] Based on the above defects and shortcomings, it is necessary to improve the existing technology and design a power connector. Utility Model Content

[0004] The main technical problem solved by this utility model is to provide a power connector that adds a resistor to the detection pin and the negative terminal, allowing different resistors to be used for different power ratings. Furthermore, the detection pin does not require a set of wires for lead bonding, thus reducing costs and simultaneously identifying the issue of different power ratings.

[0005] To solve the above-mentioned technical problems, the present invention provides a power connector, which includes a power plug, a wire, and a resistor. The power plug includes a plug body, a positive terminal, and negative terminals on both sides of the positive terminal. The plug body also includes a shell that encloses the plug body. The shell is made of metal and has a detection PIN extending outward from it. The positive terminal, negative terminal, and detection PIN are arranged in the same direction. The positive and negative terminals are columnar with a flat mounting surface at the top. The mounting surfaces on adjacent terminals face away from each other. Each mounting surface has a connection hole for connecting the wire. The detection PIN is sheet-shaped and has a mounting hole. A resistor is electrically connected between the detection PIN and one of the negative terminals.

[0006] Preferably, three leads are drawn out from the inside of the wire, which are respectively connected to the positive terminal and the negative terminal. After passing through the connection hole, the leads are placed at the mounting surface and soldered to the positive and negative terminals.

[0007] Preferably, the resistor has two protruding pins. One pin passes through the mounting hole at the detection PIN and is soldered to the detection PIN. The other pin is soldered to the negative terminal or to a lead connected to the negative terminal.

[0008] Preferably, the outer shell is made of iron.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] Adding a resistor between the detection PIN and the negative terminal reduces the cost of a set of wire leads and processing costs.

[0011] Different resistor specifications correspond to different charging power, which can identify the charging power of the power connector. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of an existing power connector.

[0013] Figure 2 This is a schematic diagram of a power connector.

[0014] Figure 3 This is a schematic diagram of the power plug structure of a power connector.

[0015] Among them, 1. power plug, 11. plug body, 12. positive terminal, 13. negative terminal, 14. housing, 15. detection PIN, 16. mounting surface, 17. connection hole, 18. mounting hole, 2. wire, 21. lead wire, 3. resistor. Detailed Implementation

[0016] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0017] Please see Figure 2 and Figure 3 The embodiments of this utility model include:

[0018] A power connector includes a power plug 1, a wire 2, and a resistor 3.

[0019] The power plug 1 includes a plug body 11, which includes a positive terminal 12 and negative terminals 13 located on both sides of the positive terminal 12. The plug body 11 also includes a housing 14, which encloses the plug body 11. The housing 14 is made of metal, specifically iron. A detection PIN 15 extends outward from the housing 14. The positive terminal 12, negative terminal 13, and detection PIN 15 are arranged in the same direction. The positive terminal 12 and negative terminal 13 are columnar and have a flat mounting surface 16 at the top. The mounting surfaces 16 on adjacent terminals face away from each other. Each mounting surface 16 has a connection hole 17 for connecting the wire 2. The detection PIN 15 is flat and has a mounting hole 18.

[0020] Three leads 21 are drawn out from the inside of the wire 2, which are respectively connected to the positive terminal 12 and the negative terminal 13. The leads 21 pass through the connection hole 17 and are placed at the mounting surface 16. The leads 21 are soldered together with the positive and negative terminals.

[0021] A resistor 3 is electrically connected between the detection PIN 15 and one of the negative terminals 13. The resistor 3 has two protruding pins. One pin passes through the mounting hole 18 at the detection PIN 15 and is soldered to the detection PIN 15. The other pin is soldered to the negative terminal 13 or to the lead 21 connected to the negative terminal 13.

[0022] The resistor 3 is set with different specifications according to the actual charging requirements. Different specifications of resistors give different rated currents. Different rated currents determine the charging power of the charging circuit. No additional wire leads need to be soldered at the detection PIN15, which can reduce costs and also identify the problem of different power.

[0023] This utility model discloses a power connector that adds a resistor to the detection pin and the negative terminal. Different resistors of different specifications are used for different power ratings. Furthermore, the detection pin does not require a set of wires for lead bonding, which reduces costs and also identifies the issue of different power ratings.

[0024] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A power connector, characterized by: The device includes a power plug (1), a wire (2), and a resistor (3). The power plug (1) includes a plug body (11), which includes a positive terminal (12) and negative terminals (13) located on both sides of the positive terminal (12). The plug body (11) also includes a housing (14) that encloses the plug body (11). The housing (14) is made of metal and has a detection PIN (15) extending outward from it. The positive terminal (12) and the negative terminal... The positive terminal (12) and the negative terminal (13) are arranged in the same direction. The positive terminal (12) and the negative terminal (13) are columnar and have a flat mounting surface (16) on the top. The mounting surfaces (16) on the adjacent terminals are arranged in opposite directions. Each mounting surface (16) has a connection hole (17) for connecting the wire (2). The detection PIN (15) is flat and has a mounting hole (18). A resistor (3) is electrically connected between the detection PIN (15) and one of the negative terminals (13).

2. A power connector according to claim 1, wherein: Three leads (21) are drawn out from the inside of the wire (2) and connected to the positive terminal (12) and the negative terminal (13) respectively. The leads (21) pass through the connection hole (17) and are placed at the mounting surface (16). The leads (21) are welded together with the positive and negative terminals.

3. A power connector according to claim 1, wherein: The resistor (3) has two protruding pins. One pin passes through the mounting hole (18) at the detection pin (15) and is soldered to the detection pin (15). The other pin is soldered to the negative terminal (13) or to the lead (21) connected to the negative terminal (13).

4. The power connector of claim 1, wherein: The outer shell (14) is made of iron.