A power supply connector structure

Abstract

A power supply connector structure, comprising an insulating base, the insulating base is provided with a containing cavity, the containing cavity is provided with a mounting port on one side, a first conductive terminal is assembled in the mounting port, two clamping grooves are respectively arranged on both sides of one end of the insulating base, a second conductive terminal is arranged in the two clamping grooves, a limiting block is arranged on an inner side surface of the insulating base, the limiting block is provided with a limiting hole penetrating through both ends, and a third conductive terminal is arranged in the limiting hole; the first conductive terminal comprises a first conductive plug-in foot, a first conductive plate fixedly connected with the first conductive plug-in foot, a contact piece vertically extended on both sides of the first conductive plate, a first contact spring plate extended on one side of the contact piece, and a second contact spring plate inwardly and bently extended on one end of the first conductive plate, the first contact spring plate and the second contact spring plate of the first conductive terminal are wrapped around the female connector, so that the effective contact area and the power supply current carrying capacity are increased.

Description

Technical Field

[0001] This utility model relates to the technical field of power connectors, and specifically to a power connector structure. Background Technology

[0002] In today's rapidly developing technological era, consumer electronics are being updated at an astonishing pace. From powerful smartphones to portable tablets, from high-definition smart TVs to various smart wearable devices, these products have become an indispensable part of people's lives. As the functions of these devices continue to improve and the application scenarios become increasingly complex, their power demands are also constantly increasing. To meet the market's pursuit of high-performance, multi-functional products, consumer electronics need increasingly greater power to support their complex applications and high-speed data processing capabilities. Taking smartphones as an example, today's phones not only have basic communication functions but also integrate high-definition cameras, powerful processors, large-capacity storage, and various sensors. The realization of these functions requires a large amount of power. When users use their phones for high-definition video recording, running large games, or browsing the web for extended periods, the device's power consumption increases significantly. Therefore, the power supply must ensure that the device can operate stably under various high-intensity usage scenarios, preventing unexpected shutdowns due to insufficient power and thus affecting the user experience. At the same time, highly reliable connection methods have become paramount for power supply products. The reliability of the power connection is directly related to the stability and safety of electronic products. During the use of electronic products, the power connection often faces various complex environmental factors. Most products on the market currently use a single-contact, unidirectional contact design, which results in low connection reliability and makes the circuit prone to overheating. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a power connector structure. The first contact spring and the second contact spring of the first conductive terminal form a wrap around the male connector, increasing the effective contact conductive area and power current carrying capacity, and enhancing the reliability of the connection between the male plug and the insulating base. The three-point clamp design improves the safe and continuous function of the connector in application environments with vibration or shock. The locking connection of the anti-reverse component and the limiting component, together with the stop groove, prevents the circuit connection from becoming loose due to excessive temperature in the application environment and during operation of the third conductive terminal.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A power connector structure includes an insulating base with a female connector on one side for inserting a male connector. The insulating base has a receiving cavity with a mounting opening on one side for mounting a first conductive terminal. Two slots are provided on either side of one end of the insulating base, one of which penetrates the side wall of the insulating base. A second conductive terminal is disposed within each of the two slots. A limiting block is provided on an inner side of the insulating base, with a limiting hole extending through both ends. A stop groove penetrating the side wall of the insulating base is provided in the limiting hole. The limiting hole has a third conductive terminal through which a limiting member is provided. A stop member is provided in the stop groove, and the stop member is locked in place with the limiting member. The first conductive terminal includes a first conductive plug pin, a first conductive plate fixedly connected to the first conductive plug pin, a contact piece extending vertically from each side of the first conductive plate, a first contact spring extending from one side of the contact piece, and a second contact spring extending inward from one end of the first conductive plate. The first contact spring and the second contact spring form a wrap around the male connector, enhancing the reliability of the connection between the male plug and the insulating base.

[0005] The insulating base has a positioning block on each side of the receiving cavity, and the positioning block and the bottom of the receiving cavity form a positioning groove. One end of the second contact spring of the first conductive terminal extends to each side with a positioning piece, and the positioning groove and the positioning piece are connected for limiting.

[0006] The second conductive terminal includes a second conductive plug, a second conductive connection hole on the second conductive plug, and a second conductive plate extending vertically from one end of the second conductive plug. One end of the second conductive plate abuts against the slot, and the other end of the second conductive plate passes through another slot. The second conductive plug extends downward against the outer wall of the insulating base.

[0007] The third conductive terminal has a circular cross-section. One end of the third conductive terminal is a conductive connecting segment, and a conductive welding segment extends vertically from one end of the conductive connecting segment. The connection between the conductive connecting segment and the conductive welding segment is an arc-shaped connecting segment.

[0008] The limiting member is provided with an annular groove, and one end of the anti-reverse member is provided with a slot relative to the annular groove. After the anti-reverse member is inserted into the stop groove, the slot at one end engages with the annular groove to limit the third conductive terminal.

[0009] The second contact spring end of the first conductive terminal is provided with a plurality of contact strips, which abut against one side of the second conductive plate.

[0010] The outer wall of the insulating base is provided with a positioning part, which is used for quick positioning during assembly.

[0011] The insulating base has several heat dissipation holes on one side for heat dissipation.

[0012] The stop groove is provided with a part removal groove on one side, which facilitates the operation when loading and unloading the stop part.

[0013] The first conductive terminal has a first conductive connection hole on its first conductive pin, which is used to stably connect to the current-carrying conductor.

[0014] The beneficial effects of this utility model are as follows: 1. The first contact spring and the second contact spring of the first conductive terminal form a wrap around the male connector, which increases the effective contact conductive area and power current carrying capacity, and enhances the reliability of the male plug and the insulating base plug connection. The three-point clamp design improves the connector’s ability to function safely and continuously in vibration or shock application environments. 2. The locking and limiting components are connected to prevent the third conductive terminal from becoming loose due to excessive temperature in the application environment and during operation. Attached Figure Description

[0015] Figure 1 This is one of the perspective views of this utility model.

[0016] Figure 2 This is a perspective view of the insulating base of this utility model.

[0017] Figure 3 This is a 1 / 4 sectional view of the insulating base of this utility model.

[0018] Figure 4 This is a perspective view of the first conductive terminal of this utility model.

[0019] Figure 5 This is the second perspective view of this utility model.

[0020] Figure 6 This is a perspective view of the third conductive terminal, the limiting member, and the anti-reverse member of this utility model.

[0021] Explanation of icon numbers: 1-Insulating base, 10-Receiving cavity, 11-Mounting port, 12-Slot, 13-Limiting block, 130-Limiting hole, 131-Stop groove, 132-Unloading groove, 14-Positioning block, 15-Positioning slide, 2-Positioning part, 3-Heat dissipation hole, 4-Female connector, 5-First conductive terminal, 50-First conductive plug pin, 500-First conductive connection hole, 51-First conductive plate, 52-Contact piece, 53-First contact spring, 54-Second contact spring, 540-Contact strip, 55-Positioning piece, 6-Second conductive terminal, 60-Second conductive plug pin, 61-Second conductive connection hole, 62-Second conductive plate, 7-Third conductive terminal, 70-Conductive connection section, 71-Arc-shaped connection section, 72-Conductive welding section, 8-Limiting element, 80-Annular groove, 9-Anti-retraction element, 90-Bayonet, 91-Miniature protrusion. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings: like Figure 1-6As shown, this utility model relates to a power connector structure, including an insulating base 1. A positioning part 2 is provided on the outer wall of the insulating base 1 for quick positioning during connector assembly. One side of the insulating base 1 has several heat dissipation holes 3 to assist in heat dissipation of the receiving cavity 10 of the insulating base 1. One side of the insulating base 1 has a female connector 4 for receiving and connecting a male connector. The insulating base 1 contains a receiving cavity 10, and one side of the receiving cavity 10 has an installation opening 11. A first conductive terminal 5 is installed in the installation opening 11. An insulating base 1 has a slot 12 on each side of one end, with one slot 12 penetrating the side wall of the insulating base 1. A second conductive terminal 6 is provided in each of the two slots 12. A limiting block 13 is provided on an inner side of the insulating base 1. The limiting block 13 has a limiting hole 130 that extends through both ends. A stop groove 131 that penetrates the side wall of the insulating base 1 is provided in the limiting hole 130. A third conductive terminal 7 is inserted through the limiting hole 130. A limiting member 8 is provided on the third conductive terminal 7. A stop member 9 is provided in the stop groove 131. The stop member 9 and the limiting member 8 are locked together. The limiting member 8 is provided with an annular groove 80, and the anti-retraction member 9 has a slot 90 at one end relative to the annular groove 80. After the anti-retraction member 9 is inserted into the stop groove 131, the slot 90 at one end engages with the annular groove 80 to limit the third conductive terminal 7. The first conductive terminal 5 includes a first conductive plug pin 50, a first conductive plate 51 fixedly connected to the first conductive plug pin 50, a contact piece 52 extending vertically on each side of the first conductive plate 51, a first contact spring 53 extending from one side of the contact piece 52, and a second contact spring extending inwardly from one end of the first conductive plate 51. 54. The first contact spring 53 and the second contact spring 54 form a wrap around the male connector, enhancing the reliability of the connection between the male plug and the insulating base 1. The first contact spring 53 and the second contact spring 54 are conductive metal sheets, which can be made of materials such as copper, iron, and aluminum. Based on the elastic properties of the metal material, the first contact spring 53 and the second contact spring 54 are inclined towards the center of the female plug interface 4, so that when the male connector is inserted, the first contact spring 53 and the second contact spring 54 tightly wrap around the male connector, ensuring good contact and maintaining circuit continuity.

[0023] like Figure 1-3As shown, a positioning block 14 is provided on each side of the receiving cavity 10 of the insulating base 1. The positioning block 14 and the bottom of the receiving cavity 10 form a positioning groove 15. One end of the second contact spring 54 of the first conductive terminal 5 extends to each side with a positioning piece 55. The positioning groove 15 and the positioning piece 55 are connected in a limiting manner. The end of the second contact spring 54 of the first conductive terminal 5 is provided with a plurality of contact strips 540. The contact strips 540 abut against one side of the second conductive plate 62 of the second conductive terminal 6. The first conductive plug pin 50 of the first conductive terminal 5 is provided with a first conductive connection hole 500. The first conductive connection hole 500 is used to stably connect the current-carrying conductor.

[0024] like Figure 5 As shown, the second conductive terminal 6 includes a second conductive plug 60, a second conductive connection hole 61 provided on the second conductive plug 60, and a second conductive plate 62 extending vertically from one end of the second conductive plug 60. One end of the second conductive plate 62 abuts in one of the slots 12, and the other end of the second conductive plate 62 passes through another slot 12. The second conductive plug 60 extends downward against the outer wall of the insulating base 1 to facilitate electrical connection with components in the circuit.

[0025] like Figure 1-6 As shown, the third conductive terminal 7 has a circular cross-section. One end of the third conductive terminal 7 is a conductive connecting section 70, and a conductive welding section 72 extends vertically from one end of the conductive connecting section 70. The connection between the conductive connecting section 70 and the conductive welding section 72 is an arc-shaped connecting section 71. The conductive connecting section 70 passes through the limiting member 8, and the two are rigidly connected.

[0026] like Figure 1-6 As shown, a part removal groove 132 is provided on one side of the stop groove 131. The part removal groove 132 is used to facilitate the operation when installing and removing the stop member 9. When inspecting and disassembling the third conductive terminal 7, the stop member 9 can be pulled out by inserting tweezers or the like into the part removal groove 132. A miniature protrusion 91 is provided on each side of the stop member 9. When the stop member 9 is inserted into the stop groove 131, the miniature protrusion 91 squeezes against the groove wall of the stop groove 131, so that the stop member 9 is tightly connected to the stop groove 131. After assembly, it will not fall off naturally due to vibration, shaking, etc., which would cause the assembly of the third conductive terminal 7 in the limit hole 130 to fail, fall out of the limit hole 130, cause the conductive path to fail, cause poor circuit contact, and easily cause the circuit to overheat, short circuit, and other risks, damaging the equipment.

[0027] During assembly, firstly, the contact piece 52 of the first conductive terminal 5 is inserted into the receiving cavity 10 along the assembly gap between the mounting opening 11 of the insulating base 1 and the limiting block 13, so that the first conductive plate 51 of the first conductive terminal 5 is pressed and squeezed against the bottom surface of the receiving cavity 10. The positioning pieces 55 extending from both sides of the second contact spring 54 are then inserted into the positioning grooves 15 formed by the positioning block 14 and the receiving cavity 10. Secondly, the second conductive plate 62 of the second conductive terminal 6 is inserted parallel to the slots 12 on both sides of the insulating base 1. When the second conductive terminal 6 is pressed in, the second conductive plate 62 contacts the second contact spring of the first conductive terminal 5. The contact strip 540 at one end of 54 presses the second contact spring 54 downward until the second conductive plate 62 is fully inserted into the slot 12. At this time, the elastic restoring force of the second contact spring 54 makes the contact strip 540 and the second conductive plate 62 come into close contact, and the circuit is connected. Then, the conductive connecting section 70 of the third conductive terminal 7 is inserted into the limiting hole 130 in the limiting block 13, and the annular groove 80 of the limiting member 8 on the conductive connecting section 70 is aligned with the stop groove 131. After the anti-retraction member 9 is inserted into the stop groove 131, the bayonet 90 at one end is engaged in the annular groove 80 to limit the third conductive terminal 7, and the assembly is completed.

[0028] It should be noted that when the male connector is first inserted, the instantaneous current may be too large, damaging circuit components. With this connector design, the first conductive terminal 5 and the second conductive terminal 6 are conductive. One end of the second conductive terminal 6 is electrically connected to a current-limiting resistor or a power management chip (PMIC). Therefore, the instantaneous current is limited when the male connector is first connected. When the male connector is fully engaged, the second contact spring 54 is pressed downwards, causing the contact strip 540 to disengage from the second conductive plate 62, disconnecting the first conductive terminal 5 from the second conductive terminal 6, thus completing the circuit protection. The positive and negative electrical connection between the first conductive terminal 5 and the third conductive terminal 7 is not restricted here and can be connected to the circuit according to actual needs. Consumer electronics products require increasingly higher power to meet market applications, and highly reliable connection methods have become paramount for power supply products. The connection is secured by the anti-reverse component 9 and the limiting component 8. The annular groove 80 of the limiting member 8 on the conductive connection section 70 is aligned with the stop groove 131. After the anti-retraction member 9 is inserted into the stop groove 131, the bayonet 90 at one end engages with the annular groove 80 to limit the third conductive terminal 7, preventing the circuit connection of the third conductive terminal 7 from becoming loose due to excessive temperature in the application environment and during operation. The first contact spring 53 and the second contact spring 54 on the two contact pieces 52 of the first conductive terminal 5 form a wrap around the male connector, increasing the effective contact conductive area and power current carrying capacity, and enhancing the reliability of the connection between the male plug and the insulating base 1. The three-point clamping design formed by the first contact spring 53 on the left and right sides of the male plug and the second contact spring 54 on the lower side improves the safe and continuous connection function of the connector in the application environment of vibration or shock. Its receiving cavity 10, together with the heat dissipation hole 3 on the insulating base 1, effectively improves the heat dissipation of the conductive terminal contact plating and internal resistance heat generation in the connector.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model. Therefore, without departing from the design spirit of the present utility model, any equivalent changes or modifications made by those skilled in the art to the structure, features and principles of the present utility model should fall within the protection scope of the patent application of the present utility model.

Claims

1. A power connector structure, comprising an insulating base, one side of which is provided with a female connector for receiving and connecting a male connector, characterized in that: The insulating base has a receiving cavity with an installation opening on one side. A first conductive terminal is installed in the installation opening. A slot is provided on each side of one end of the insulating base, one of which penetrates the side wall of the insulating base. A second conductive terminal is installed in both slots. A limiting block is provided on an inner side of the insulating base. The limiting block has a limiting hole that extends through both ends. A stop groove that penetrates the side wall of the insulating base is provided on the limiting hole. A third conductive terminal passes through the limiting hole. A limiting member is provided on the third conductive terminal. A stop member is provided in the stop groove. The stop member is locked to the limiting member. The first conductive terminal includes a first conductive plug pin, a first conductive plate fixedly connected to the first conductive plug pin, a contact piece extending vertically on each side of the first conductive plate, a first contact spring extending on one side of the contact piece, and a second contact spring extending inwardly from one end of the first conductive plate. The first contact spring and the second contact spring form a wrap around the male connector, enhancing the reliability of the connection between the male plug and the insulating base.

2. The power connector structure according to claim 1, characterized in that: The insulating base has a positioning block on each side of the receiving cavity, and the positioning block and the bottom of the receiving cavity form a positioning groove. One end of the second contact spring of the first conductive terminal extends to each side with a positioning piece, and the positioning groove and the positioning piece are connected for limiting.

3. The power connector structure according to claim 1, characterized in that: The second conductive terminal includes a second conductive plug, a second conductive connection hole on the second conductive plug, and a second conductive plate extending vertically from one end of the second conductive plug. One end of the second conductive plate abuts against the slot, and the other end of the second conductive plate passes through another slot. The second conductive plug extends downward against the outer wall of the insulating base.

4. The power connector structure according to claim 1, characterized in that: The third conductive terminal has a circular cross-section. One end of the third conductive terminal is a conductive connecting segment, and a conductive welding segment extends vertically from one end of the conductive connecting segment. The connection between the conductive connecting segment and the conductive welding segment is an arc-shaped connecting segment.

5. The power connector structure according to claim 1, characterized in that: The limiting member is provided with an annular groove, and one end of the anti-reverse member is provided with a slot relative to the annular groove. After the anti-reverse member is inserted into the stop groove, the slot at one end engages with the annular groove to limit the third conductive terminal.

6. The power connector structure according to claim 3, characterized in that: The second contact spring end of the first conductive terminal is provided with a plurality of contact strips, which abut against one side of the second conductive plate.

7. The power connector structure according to claim 1, characterized in that: The outer wall of the insulating base is provided with a positioning part, which is used for quick positioning during assembly.

8. The power connector structure according to claim 1, characterized in that: The insulating base has several heat dissipation holes on one side for heat dissipation.

9. A power connector structure according to claim 1, characterized in that: The stop groove is provided with a part removal groove on one side, which facilitates the operation when loading and unloading the stop part.

10. A power connector structure according to claim 1, characterized in that: The first conductive terminal has a first conductive connection hole on its first conductive pin, which is used to stably connect to the current-carrying conductor.

Images