Electrical connection structure

Abstract

Provided in the present application is an electrical connection structure. The electrical connection structure comprises a pin, a spring contact, a base and a rotating member. At least two abutting portions are connected to the spring contact, and the at least two abutting portions respectively abut against and are electrically connected to different regions of the pin. The spring contact is fixed to the base. The rotating member is rotatably mounted to the base. The pin is connected to the rotating member and rotates with the rotating member. The abutting portions include a first abutting portion and a second abutting portion which are spaced apart from each other. The pin is fixed to the rotating member by means of an electrically conductive member. The pin abuts against and is electrically connected to the electrically conductive member. The first abutting portion abuts against and is electrically connected to the pin. The second abutting portion abuts against and is electrically connected to the electrically conductive member.

Description

Electrical connection structure

[0001] This application claims priority to Chinese Patent Application No. 202411479436.3, filed with the Chinese Patent Office on October 22, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of adapter technology, and more specifically to an electrical connection structure. Background Technology

[0003] A power adapter is a device that converts alternating current or direct current into a specific voltage and current suitable for electronic devices. Its function is to provide a stable and safe power supply for electronic devices, ensure their normal operation, and prevent damage caused by voltage instability.

[0004] In related technologies, power adapters can have their metal prongs retracted, thereby reducing space usage and making it easier to wind up cables. Invention Overview

[0005] However, for foldable power adapters, the metal pins and contacts typically use single-point contact, meaning there's only one point of contact between the pin and the contact. This results in a small contact area, high impedance, and limited power output, failing to meet the high-power output requirements of the power adapter. Furthermore, if this single contact point becomes loose, the power adapter will malfunction.

[0006] This application provides an electrical connection structure. The electrical connection structure includes a pin, a spring, a base, and a rotating member. The spring has at least two abutting portions, which abut against different areas of the pin and are electrically connected. The spring is fixed to the base. The rotating member is rotatably mounted on the base. The pin is connected to the rotating member and rotates with the rotating member. The abutting portions include a first abutting portion and a second abutting portion spaced apart. The pin is fixed to the rotating member via a conductive member. The pin abuts against and is electrically connected to the conductive member. The first abutting portion abuts against and is electrically connected to the pin. The second abutting portion abuts against and is electrically connected to the conductive member. Beneficial effects

[0007] The electrical connection structure provided in this application connects at least two abutment portions to a spring, allowing each abutment portion to be electrically connected to a different area of ​​the pin. The spring is fixed to a base. A rotating component is rotatably mounted on the base. The pin is connected to the rotating component and rotates with it. The pin is fixed to the rotating component via a conductive component. The pin abuts against and is electrically connected to the conductive component. A first abutment portion abuts against and is electrically connected to the pin. A second abutment portion abuts against and is electrically connected to the conductive component. This allows for at least two contact points between the pin and the spring, thereby increasing the contact area, reducing contact resistance, and improving output power. Furthermore, based on the redundant contact point configuration, when the electrical connection at one contact point is broken, the remaining contacts ensure a reliable electrical connection between the pin and the spring, improving the fault tolerance of the electrical connection between the pin and the spring. Attached Figure Description

[0008] Figure 1 is a schematic diagram of one of the possible implementations of the electrical connection structure provided in this application.

[0009] Figure 2 is a second schematic diagram of the electrical connection structure provided by a possible implementation of this application.

[0010] Figure 3 is one of the connection diagrams of the pin and spring provided in a possible implementation of this application.

[0011] Figure 4 is an exploded view of Figure 3.

[0012] Figure 5 is a second schematic diagram of the connection between the pin and the spring provided in a possible implementation of this application.

[0013] Figure 6 is an exploded view of Figure 5.

[0014] Figure 7 is one of the structural schematic diagrams of the spring provided in a possible implementation of this application.

[0015] Figure 8 is a second schematic diagram of the structure of the spring provided in a possible implementation of this application.

[0016] Figure 9 is a schematic diagram of the connection between the pin and the rotating component provided in a possible implementation of this application.

[0017] Figure 10 is a schematic diagram of the pin structure provided in a possible implementation of this application.

[0018] Figure 11 is a schematic diagram of the structure of the rotating component provided in a possible implementation of this application.

[0019] Explanation of reference numerals in the attached figures:

[0020] 10. Base; 20. Rotating component; 210. Mounting hole; 220. Mounting groove; 30. Pin; 310. First connecting part; 320. Through end; 330. Second connecting part; 40. Spring piece; 410. First abutting part; 4110. First arc-shaped segment; 4120. First inclined segment; 4130. Second arc-shaped segment; 420. Second abutting part; 4210. Second inclined segment; 4220. Third arc-shaped segment; 4230. Bending part; 50. Conductive component; 510. First contact part; 520. Second contact part. Implementation methods of this application

[0021] Specifically, please refer to Figures 1 to 11. This application embodiment provides an electrical connection structure. The electrical connection structure includes a pin 30 and a spring contact 40. The spring contact 40 is connected to at least two abutting portions. The at least two abutting portions respectively abut against different areas of the pin 30 and are electrically connected.

[0022] In this embodiment, by connecting at least two abutting portions to the spring 40, the at least two abutting portions are electrically connected to different areas of the pin 30. This allows for at least two contact points between the pin 30 and the spring 40, thereby increasing the contact area, reducing contact resistance, and improving output power. Furthermore, based on the redundant contact point configuration, when the electrical connection at one contact point is broken, the remaining contacts can ensure a reliable electrical connection between the pin 30 and the spring 40, thus improving the fault tolerance of the electrical connection between the pin 30 and the spring 40.

[0023] The pin 30, serving as the socket of the plug-in socket, can be made of metal. For example, the pin 30 can be made of copper. The spring 40, serving as a conductive elastic component connecting the pin 30 to the circuit board, can also be made of metal. For example, the spring 40 can be made of copper.

[0024] At least two abutting portions can be integrally formed on the spring 40. For example, two abutting portions are provided. The two abutting portions are integrally formed on one end of the spring 40, and the two abutting portions are spaced apart. Thus, the two abutting portions respectively abut against two areas of the pin 30 and are electrically connected.

[0025] At least two abutting parts can also be soldered to the spring 40. For example, three abutting parts are provided. The three abutting parts are soldered to one end of the spring 40, and the three abutting parts are spaced apart. Thus, the three abutting parts respectively abut against three areas of the pin 30 and are electrically connected.

[0026] As shown in Figures 1 and 2, in some embodiments, the electrical connection structure further includes a base 10 and a rotating member 20. The rotating member 20 is rotatably mounted on the base 10. A spring clip 40 is fixed to the base 10. A pin 30 is connected to the rotating member 20 and rotates with the rotating member 20.

[0027] By fixing the spring clip 40 to the base 10 and connecting the pin 30 to the rotating member 20, the rotation of the rotating member 20 on the base 10 can drive the pin 30 to rotate, thereby forming a rotatable and foldable pin 30 structure. When applied to a power adapter, it can form a foldable power adapter, which is convenient for carrying the power adapter and protects the pin 30.

[0028] The base 10 is made of an insulating material. For example, the base 10 is made of materials such as plastic or polymer resin. The rotating component 20 is also made of an insulating material. For example, the rotating component 20 is made of materials such as plastic or polymer resin.

[0029] The electrical connection structure in this application embodiment is applicable to plugs, power adapters, etc. In some embodiments, when the plug and power adapter are configured as a two-prong electrical connection socket, two spring contacts 40 can be fixed on the base 10, each spring contact 40 having at least two abutment portions. Two pins 30 are connected to the rotating member 20. One pin 30 corresponds to one spring contact 40 for electrical connection, serving as the neutral and live wire respectively. In some embodiments, when the plug and power adapter are configured as a three-prong electrical connection socket, three spring contacts 40 can be fixed on the base 10, each spring contact 40 having at least two abutment portions. Three pins 30 are connected to the rotating member 20. One pin 30 corresponds to one spring contact 40 for electrical connection, serving as the neutral, live, and ground wire respectively.

[0030] As shown in Figures 3 and 5, the electrical connection structure in this embodiment is particularly suitable for electrical connection of two-hole sockets. In this case, two pins 30 are mounted on the rotating member 20 to allow the two pins 30 to rotate synchronously. Since the rotating member 20 is made of insulating material, short circuits between the two pins 30 can be prevented. Two spring contacts 40 can be spaced apart on the base 10, with each spring contact 40 corresponding to one of the pins 30. The two spring contacts 40 can have the same or different shapes. Alternatively, as shown in Figures 7 and 8, the two spring contacts 40 may have different shapes, but at least two abutment portions connected to the two spring contacts 40 may have the same shape.

[0031] As shown in Figures 9 and 11, the rotating component 20 may include a rotating shaft and connectors located at both ends of the rotating shaft. A mounting portion is provided on the base 10. The rotating shaft is rotatably mounted on the mounting portion. The two connectors are located on opposite sides of the mounting portion to prevent the mounting portion from interfering with the rotation of the connectors.

[0032] In some embodiments, the rotating member 20 may be an injection-molded part. For example, the rotating member 20 is injection-molded and connected to the base 10 and the pin 30.

[0033] As shown in Figures 3 and 5, in some embodiments, two abutting portions are provided, namely a first abutting portion 410 and a second abutting portion 420 spaced apart. The pin 30 is fixed to the rotating member 20 via a conductive member 50. The pin 30 abuts against and is electrically connected to the conductive member 50. The first abutting portion 410 abuts against and is electrically connected to the pin 30. The second abutting portion 420 abuts against and is electrically connected to the conductive member 50.

[0034] Understandably, the first abutting portion 410 abuts against the pin 30, and the second abutting portion 420 abuts against the conductive member 50, since the conductive member 50 and the pin 30 are electrically connected. Therefore, the spring 40 can form multiple contact points electrically connected to the pin 30. For example, the first abutting portion 410 and the pin 30 can form one contact point, and the second abutting portion 420 and the conductive member 50 can form two contact points.

[0035] The conductive element 50 can be made of a metallic material. For example, the conductive element 50 can be made of copper. In some embodiments, the conductive element 50 can be a metal rivet, a metal screw, etc.

[0036] The rotating part 20 may have connection holes at its opposite ends, the conductive part 50 is disposed in the connection holes, and the pin 30 is fixed to the rotating part 20.

[0037] As shown in Figures 9 and 10, in some embodiments, the pin 30 includes a first connecting portion 310. The rotating member 20 has a mounting hole 210. The first connecting portion 310 is disposed within the mounting hole 210. The first connecting portion 310 has a protruding end 320 extending out of the mounting hole 210. The protruding end 320 abuts against and is electrically connected to the first abutting portion 410.

[0038] Understandably, the first connecting portion 310 of the pin 30 extends towards the rotating member 20 and passes through the mounting hole 210 of the rotating member 20. The end of the first connecting portion 310 away from the pin 30 protrudes from the mounting hole 210, forming a protruding end 320. The protruding end 320 abuts against the first abutting portion 410 and is electrically connected to achieve an electrical connection between the pin 30 and the spring contact 40. The protruding end 320 and the pin 30 are located on opposite sides of the mounting hole 210. That is, the pin 30 and the protruding end 320 are located on opposite sides of the rotating shaft. When the pin 30 rotates, the protruding end 320 can abut against the first abutting portion 410, thereby ensuring a tight fit between the protruding end 320 and the first abutting portion 410.

[0039] In some embodiments, the first connecting portion 310 is integrally formed on the pin 30. For example, the first connecting portion 310 and the pin 30 are integrally stamped or integrally cast. The protruding end 320 is a part of the first connecting portion 310. This part fits against the first abutting portion 410 to achieve electrical connection between the pin 30 and the spring 40.

[0040] The protruding end 320 can be configured as an arc-shaped surface to reduce the friction between the protruding end 320 and the first abutting part 410 and to prevent the protruding end 320 from scratching the first abutting part 410.

[0041] In some embodiments, the first abutting portion 410 includes a first arcuate segment 4110, a first inclined segment 4120, and a second arcuate segment 4130 connected in sequence. The pin 30 has a first state and a second state. In the first state, the first arcuate segment 4110 abuts against the protruding end 320 and is electrically connected. In the second state, the second arcuate segment 4130 abuts against the protruding end 320 and is electrically connected. The pin 30 rotates with the rotating member 20 to switch between the first and second states.

[0042] Understandably, the plug 30 can rotate with the rotating component 20 to have a first state and a second state. As shown in Figure 1, the first state is a state perpendicular to the base 10. As shown in Figure 2, the second state is a state in which the plug 30 is retracted into the base 10. Thus, the plug 30 can be used to plug the power adapter into the socket when it is in the first state, and to store the power adapter when it is in the second state.

[0043] As shown in Figures 3 and 4, when pin 30 is in the first state, the through end 320 abuts against the first arc-shaped segment 4110. The electrical transmission path at this time is: spring piece 40 - first arc-shaped segment 4110 - through end 320 - first connecting part 310 - pin 30. This achieves an electrical connection between spring piece 40 and pin 30. As shown in Figures 5 and 6, when pin 30 is in the second state, the through end 320 abuts against the second arc-shaped segment 4130. The electrical transmission path at this time is: spring piece 40 - first arc-shaped segment 4110 - first inclined segment 4120 - second arc-shaped segment 4130 - through end 320 - first connecting part 310 - pin 30. This achieves an electrical connection between spring piece 40 and pin 30.

[0044] The first arc-shaped segment 4110 and the second arc-shaped segment 4130 of the first abutment portion 410 are adapted to the first state and the second state of the pin 30, respectively, to ensure that the pin 30 can form an electrical connection with the spring piece 40 in both the first state and the second state.

[0045] The first inclined segment 4120 serves as a transition segment between the first arc segment 4110 and the second arc segment 4130. It is configured such that the first arc segment 4110 and the second arc segment 4130 are spaced apart to accommodate the position of the protruding end 320 of the pin 30 in the first state and the position of the protruding end 320 in the second state.

[0046] In some embodiments, the first arc segment 4110 and the second arc segment 4130 each possess a certain degree of elasticity, allowing for elastic deformation to a certain extent when they abut against the protruding end 320. It is understood that when the protruding end 320 of the pin 30 abuts against the inner arc surface of the first arc segment 4110, the first arc segment 4110 will undergo a certain degree of elastic deformation to ensure a tight fit between the protruding end 320 and the first arc segment 4110. At this time, the first arc segment 4110 will bend away from its center. When the protruding end 320 of the pin 30 moves away from the first arc segment 4110, the first arc segment 4110 will adaptively return to its initial state. At this time, the first arc segment 4110 will bend towards its center. When the protruding end 320 of the pin 30 abuts against the inner arc surface of the second arc segment 4130, the second arc segment 4130 will undergo a certain degree of elastic deformation to ensure a tight fit between the protruding end 320 and the second arc segment 4130. At this time, the second arc segment 4130 will bend away from its center. When the protruding end 320 of the pin 30 moves away from the second arc segment 4130, the second arc segment 4130 will adaptively return to its initial state. At this time, the second arc segment 4130 will bend towards its center.

[0047] In some embodiments, the first arc segment 4110 and the second arc segment 4130 may not be elastic, as long as the curvature of the first arc segment 4110 and the second arc segment 4130 can be just right to fit the through end 320.

[0048] As shown in Figures 7 and 8, in some embodiments, the first abutment portion 410 is an elastic abutment portion. The first abutment portion 410 is configured to drive the pin 30 to rotate after the pin 30 is driven by an external force and rotated to a first preset angle, so that the pin 30 switches from a first state to a second state. The first abutment portion 410 is also configured to drive the pin 30 to rotate after the pin 30 is driven by an external force and rotated to a second preset angle, so that the pin 30 switches from a second state to a first state.

[0049] Understandably, the pin 30 switches between a first state and a second state by rotation. When switching between the first and second states, both the pin 30 and the rotating component 20 need to rotate 90 degrees. When the pin 30 needs to switch from the first state to the second state, it can first be rotated by a first preset angle under the action of an external force. Then, the external force can be removed, and the pin 30 can be driven to rotate further by the elasticity of the first abutment portion 410. When the pin 30 needs to switch from the second state to the first state, it can first be rotated by a second preset angle under the action of an external force. Then, the external force can be removed, and the pin 30 can be driven to rotate further by the elasticity of the first abutment portion 410. This facilitates the switching of the pin 30's states.

[0050] In some embodiments, when the pin 30 rotates by a first preset angle under the action of an external force, the protruding end 320 of the pin 30 gradually moves away from the first arc segment 4110, and the first arc segment 4110 recovers from its deformed state to its initial state, deforming towards its center. If the force exerted by the first arc segment 4110 on the first connecting portion 310 is greater than the resistance to the rotation of the pin 30 (the resistance includes the force exerted by the first inclined segment 4120 on the first connecting portion 310, the rotational friction of the rotating member 20, etc.), the first arc segment 4110 can push the first connecting portion 310 to rotate, thereby realizing the state switching of the pin 30. And / or, when the first connecting portion 310 rotates to a position corresponding to the first inclined segment 4120, the protruding end 320 of the first connecting portion 310 presses against the first inclined segment 4120. At this time, the first inclined segment 4120 is in an elastic deformation state. When the external force is removed, if the force exerted by the first inclined section 4120 on the first connecting part 310 is greater than the resistance to the rotation of the pin 30 (the resistance includes the force exerted by the second arc section 4130 on the first connecting part 310, the rotational friction of the rotating part 20, etc.), the first inclined section 4120 can push the first connecting part 310 to rotate, thereby realizing the state switching of the pin 30.

[0051] In some embodiments, the first preset angle can be set to 15 degrees to 60 degrees. For example, the first preset angle can be set to 15 degrees, 30 degrees, 45 degrees, 60 degrees, or any value between the two. The first preset angle will vary based on the material of the first abutment portion 410. The first preset angle will also vary based on the curvature of the first arc segment 4110, the curvature of the second arc segment 4130, and the tilt angle of the first inclined segment 4120. The first preset angle will also vary based on the arc length of the first arc segment 4110, the arc length of the second arc segment 4130, and the length of the first inclined segment 4120. This application does not limit the variation relationship of the first preset angle; the design should ensure that the first abutment portion 410 can drive the pin 30 to continue rotating after the pin 30 rotates a certain angle.

[0052] In some embodiments, when the pin 30 rotates by a second preset angle under the action of an external force, the protruding end 320 of the pin 30 gradually moves away from the second arc segment 4130, and the second arc segment 4130 recovers from its deformed state to its initial state, deforming towards its center. If the force exerted by the second arc segment 4130 on the first connecting portion 310 is greater than the resistance to the rotation of the pin 30 (the resistance includes the force exerted by the first inclined segment 4120 on the first connecting portion 310, the rotational friction of the rotating member 20, etc.), the second arc segment 4130 can push the first connecting portion 310 to rotate, thereby realizing the state switching of the pin 30. And / or, when the first connecting portion 310 rotates to a position corresponding to the first inclined segment 4120, the protruding end 320 of the first connecting portion 310 presses against the first inclined segment 4120. At this time, the first inclined segment 4120 is in an elastic deformation state. When the external force is removed, if the force exerted by the first inclined section 4120 on the first connecting part 310 is greater than the resistance to the rotation of the pin 30 (the resistance includes the force exerted by the first arc section 4110 on the first connecting part 310, the rotational friction of the rotating part 20, etc.), the first inclined section 4120 can push the first connecting part 310 to rotate, thereby realizing the state switching of the pin 30.

[0053] In some embodiments, the second preset angle can be set to 15 degrees to 60 degrees. For example, the second preset angle can be set to 15 degrees, 30 degrees, 45 degrees, 60 degrees, or any value between the two. The second preset angle will vary based on the material of the first abutment portion 410. The second preset angle will also vary based on the arc of the first arc segment 4110, the arc of the second arc segment 4130, and the tilt angle of the first inclined segment 4120. The second preset angle will also vary based on the arc length of the first arc segment 4110, the arc length of the second arc segment 4130, and the length of the first inclined segment 4120. This application does not limit the relationship of the second preset angle variation; it is sufficient to ensure that the first abutment portion 410 can drive the pin 30 to continue rotating after the pin 30 rotates a certain angle during the design.

[0054] As shown in Figures 7 and 8, in some embodiments, the second abutment portion 420 includes a second inclined section 4210 and a third arc-shaped section 4220. One end of the second inclined section 4210 is connected to the spring piece 40, and the other end is connected to the third arc-shaped section 4220. The third arc-shaped section 4220 abuts against and is electrically connected to the outer peripheral surface of the conductive member 50.

[0055] It is understood that the second abutting portion 420 abuts against and is electrically connected to the outer peripheral surface of the conductive member 50 via the third arc-shaped segment 4220. Regardless of the rotation angle of the pin 30 and the rotating member 20, the third arc-shaped segment 4220 can contact the outer peripheral surface of the conductive portion, ensuring a reliable electrical connection between the spring 40 and the pin 30. The electrical transmission path is: spring 40 - second inclined segment 4210 - third arc-shaped segment 4220 - conductive member 50 - pin 30.

[0056] In some embodiments, the third arc-shaped segment 4220 and the second inclined segment 4210 both have a certain degree of elasticity. This allows the third arc-shaped segment 4220 to be pressed against the outer peripheral surface of the conductive element 50 with a certain force, thereby ensuring a reliable electrical connection between the two.

[0057] In some embodiments, the third arc segment 4220 and the second inclined segment 4210 may also be non-elastic. It is sufficient to ensure that the third arc segment 4220 can fit the outer peripheral surface of the conductive element 50.

[0058] As shown in Figures 4 and 6, in some embodiments, the conductive element 50 includes a first contact portion 510. The first contact portion 510 is cylindrical. The radius of the first contact portion 510 is R1. The radius of the third arc segment 4220 is R2. The third arc segment 4220 and the first contact portion 510 are co-centered, and R1 ≥ R2.

[0059] It is understood that the radius R2 of the third arc-shaped segment 4220 is less than or equal to the radius R1 of the first contact portion 510 to ensure that the third arc-shaped segment 4220 can reliably abut against the first contact portion 510. In the embodiment of this application, the radius R2 of the third arc-shaped segment 4220 is smaller than the radius R1 of the first contact portion 510. Therefore, the third arc-shaped segment 4220 can be pressed against the outer peripheral surface of the conductive member 50 with a certain force, thereby ensuring a reliable electrical connection between the two.

[0060] As shown in Figures 4 and 6, in some embodiments, the conductive element 50 further includes a second contact portion 520 coaxially disposed with the first contact portion 510. The second abutting portion 420 further includes a bent portion 4230. The bent portion 4230 is connected to the second inclined section 4210 and bends toward the second contact portion 520. The bent portion 4230 abuts against the second contact portion 520 and is electrically connected.

[0061] It is understandable that by abutting and electrically connecting the bent portion 4230 to the second contact portion 520, the second contact portion 420 has two contact points electrically connected to the conductive element 50. This increases the contact area, reduces contact resistance, and improves output power.

[0062] The bent portion 4230 has a certain area to ensure that it can abut against the second contact portion 520 and be electrically connected in both the first and second states. Alternatively, the second contact portion 520 can be configured as a hemispherical shape. The bent portion 4230 is perpendicular to the central axis of the hemisphere and abuts against the outer surface of the hemisphere. This also ensures that the bent portion 4230 can abut against the second contact portion 520 and be electrically connected in both the first and second states.

[0063] In some embodiments, the second contact portion 520 is integrally formed with the first contact portion 510.

[0064] In some embodiments, the pin 30 has a first state and a second state. The second abutment portion 420 is an elastic abutment portion. The second abutment portion 420 is configured to drive the pin 30 to rotate after the pin 30 is driven by an external force and rotated to a first preset angle, so that the pin 30 switches from the first state to the second state. The second abutment portion 420 is also configured to drive the pin 30 to rotate after the pin 30 is driven by an external force and rotated to a second preset angle, so that the pin 30 switches from the second state to the first state.

[0065] Understandably, the pin 30 switches between a first state and a second state by rotation. When switching between the first and second states, both the pin 30 and the rotating component 20 need to rotate 90 degrees. When the pin 30 needs to switch from the first state to the second state, it can first be rotated by a first preset angle under external force. Then, the external force can be removed, and the pin 30 can be driven to rotate further by the elasticity of the second abutment portion 420. When the pin 30 needs to switch from the second state to the first state, it can first be rotated by a second preset angle under external force. Then, the external force can be removed, and the pin 30 can be driven to rotate further by the elasticity of the second abutment portion 420. This facilitates the switching of the pin 30's states.

[0066] At this time, the structure of the second abutment portion 420 can be similar to that of the first abutment portion 410. For example, the third arc-shaped segment 4220 can be divided into two segments, namely segment A and segment B. Simultaneously, an outwardly protruding eccentric portion can be provided on the periphery of the first contact portion 510. In the first state, the eccentric portion abuts against segment A. In the second state, the eccentric portion abuts against segment B. When segment A abuts against the eccentric portion, segment A deforms to bend away from the circle. When segment B abuts against the eccentric portion, segment B deforms to bend away from the circle. When segment A recovers from its deformed state to its initial state, it will deform towards its center. If the force exerted by segment A on the eccentric portion is greater than the resistance to the rotation of the pin 30 (the resistance includes the rotational friction of the rotating member 20, etc.), segment A can push the eccentric portion to rotate, thereby driving the rotating member 20 and the pin 30 to rotate. And / or, when segment B recovers from its deformed state to its initial state, it will deform in the direction closer to its center. If the force exerted by segment B on the eccentric part is greater than the resistance to the rotation of pin 30 (the resistance includes the rotational friction of rotating part 20, etc.), segment B can push the eccentric part to rotate, thereby driving rotating part 20 and pin 30 to rotate.

[0067] In this embodiment, the first preset angle and the second preset angle can have the same values ​​as those in the previous embodiments, which will not be repeated here.

[0068] As shown in Figures 10 and 11, in some embodiments, the pin 30 further includes a second connecting portion 330. The second connecting portion 330 and the first connecting portion 310 are located at the same end of the pin 30 and are spaced apart. The rotating member 20 has a mounting groove 220. The second connecting portion 330 is engaged within the mounting groove 220.

[0069] Understandably, the second connecting portion 330 of the pin 30 engages within the mounting groove 220 to cooperate with the first connecting portion 310, achieving a reliable connection with the rotating member 20. Simultaneously, this ensures that the pin 30 and the rotating member 20 are relatively fixed and do not rotate relative to each other.

[0070] The length of the second connecting part 330 is shorter than that of the first connecting part 310.

[0071] In some embodiments, the second connecting portion 330 is configured to abut against and be electrically connected to the first abutting portion 410.

[0072] Specifically, when the pin 30 is in the first state, the second connecting portion 330 abuts against and is electrically connected to the second arcuate segment 4130 of the first abutting portion 410. Thus, when the pin 30 is in the first state, on the one hand, the first connecting portion 310 abuts against and is electrically connected to the first arcuate segment 4110 of the first abutting portion 410, and on the other hand, the second connecting portion 330 abuts against and is electrically connected to the second arcuate segment 4130 of the first abutting portion 410. This creates multiple contact points between the pin 30 and the first abutting portion 410 in the first state, ensuring a reliable electrical connection between them.

[0073] In some embodiments, a circuit board is disposed on the base 10. The spring contact 40 is electrically connected to the circuit board.

[0074] Understandably, the electrical connection between the spring 40 and the pin 30 ultimately needs to achieve electrical transmission between the power supply and the circuit board, or between circuit boards. Therefore, the spring 40 is electrically connected to the circuit board to realize its function.

[0075] The circuit board can be a PCB (Printed Circuit Board) or an FPC (Flexible Printed Circuit). The appropriate circuit board should be selected based on the power adapter type and usage requirements.

[0076] In some embodiments, the spring 40 can be directly fixed to the circuit board. For example, the spring 40 can be mounted on the threaded hole of the circuit board by a metal screw to achieve fixation and electrical connection between the spring 40 and the circuit board.

[0077] In some embodiments, the spring 40 is also connected to a conductive wire. The spring 40 is electrically connected to the circuit board via the conductive wire. In this case, the spring 40 is electrically connected to the circuit board via the conductive wire. The spring 40 can be fixed to the base 10 by fasteners. One end of the spring 40 is provided with at least two abutment portions, and the other end of the spring 40 is connected to the conductive wire.

[0078] For example, the conductive wire can be made of copper wire, and the copper wire is covered with an insulating layer. One end of the copper wire is soldered to the spring 40, and the other end of the copper wire is soldered to the circuit board.

[0079] This application also provides a power adapter. The power adapter includes the electrical connection structure as described in the foregoing embodiments.

[0080] In this embodiment, by connecting at least two abutting portions to the spring 40, the at least two abutting portions are electrically connected to different areas of the pin 30. This allows for at least two contact points between the pin 30 and the spring 40, thereby increasing the contact area, reducing contact resistance, and improving output power. Furthermore, based on the redundant contact point configuration, when the electrical connection at one contact point is broken, the remaining contacts can ensure a reliable electrical connection between the pin 30 and the spring 40, thus improving the fault tolerance of the electrical connection between the pin 30 and the spring 40.

[0081] This application also provides an electronic device. The electronic device includes a power adapter as described in any of the foregoing embodiments.

[0082] In this embodiment, at least two abutment portions are connected to the spring 40, so that the at least two abutment portions are electrically connected to different areas of the pin 30 respectively. The spring 40 is fixed to the base 10. The rotating member 20 is rotatably mounted on the base 10. The pin 30 is connected to the rotating member 20 and rotates with the rotating member 20. The pin 30 is fixed to the rotating member 20 through the conductive member 50. The pin 30 abuts and is electrically connected to the conductive member 50. The first abutment portion 410 abuts and is electrically connected to the pin 30. The second abutment portion 420 abuts and is electrically connected to the conductive member 50. Thus, there are at least two contact points between the pin 30 and the spring 40, thereby increasing the contact area, reducing the contact impedance, and improving the output power. At the same time, based on the redundant setting of contact points, when the electrical connection at one of the contact points is broken, there are still other contacts to ensure a reliable electrical connection between the pin 30 and the spring 40, which can improve the fault tolerance of the electrical connection between the pin 30 and the spring 40.

Claims

1. An electrical connection structure, comprising: Insert; A spring clip is connected to at least two abutting parts, wherein the at least two abutting parts respectively abut against different areas of the pin and are electrically connected; The base, to which the spring is fixed; A rotating component is rotatably mounted on the base, and the pin is connected to the rotating component and rotates with the rotating component; The abutting portion includes a first abutting portion and a second abutting portion spaced apart. The pin is fixed to the rotating member by a conductive member. The pin abuts against and is electrically connected to the conductive member. The first abutting portion abuts against and is electrically connected to the pin. The second abutting portion abuts against and is electrically connected to the conductive member.

2. The electrical connection structure as described in claim 1, wherein, The pin includes a first connecting portion, the rotating member has a mounting hole, the first connecting portion is disposed in the mounting hole, the first connecting portion has a through end that extends out of the mounting hole, the through end abuts against the first abutting portion and is electrically connected.

3. The electrical connection structure as described in claim 2, wherein, The first abutting part includes a first arc-shaped segment, a first inclined segment, and a second arc-shaped segment connected in sequence. The pin has a first state and a second state. In the first state, the first arc-shaped segment abuts against the protruding end and is electrically connected. In the second state, the second arc-shaped segment abuts against the protruding end and is electrically connected. The pin rotates with the rotating member to switch between the first state and the second state.

4. The electrical connection structure as described in claim 3, wherein, The first abutting part is an elastic abutting part. The first abutting part is configured to drive the plug to rotate after the plug is driven by an external force and rotated to a first preset angle, so that the plug switches from the first state to the second state. The first abutting part is also configured to drive the plug to rotate after the plug is driven by an external force and rotated to a second preset angle, so that the plug switches from the second state to the first state.

5. The electrical connection structure as described in any one of claims 1 to 4, wherein, The second abutting portion includes a second inclined section and a third arc-shaped section. One end of the second inclined section is connected to the spring piece, and the other end is connected to the third arc-shaped section. The third arc-shaped section abuts against the outer peripheral surface of the conductive element and is electrically connected.

6. The electrical connection structure as described in claim 5, wherein, The conductive element includes a second contact portion, and the second abutting portion further includes a bent portion. The bent portion is connected to the second inclined section and bends toward the second contact portion, wherein the bent portion abuts against the second contact portion and is electrically connected.

7. The electrical connection structure as described in claim 5 or 6, wherein, The plug has a first state and a second state. The second abutment is an elastic abutment. The second abutment is configured to drive the plug to rotate after the plug is driven by an external force and rotated to a first preset angle, so that the plug switches from the first state to the second state. The second abutment is also configured to drive the plug to rotate after the plug is driven by an external force and rotated to a second preset angle, so that the plug switches from the second state to the first state.

8. The electrical connection structure as described in any one of claims 2 to 7, wherein, The pin also includes a second connecting portion, which is located at the same end of the pin as the first connecting portion and is spaced apart from it. The rotating member has a mounting groove, and the second connecting portion is engaged in the mounting groove. The second connecting portion is configured to abut against and be electrically connected to the first abutting portion.

Images