A plug-in mobile power supply

Abstract

The application relates to the technical field of mobile power sources, in particular to a spliced plug-in mobile power source which comprises a power supply part for supplying power to external equipment and a plug part which is detachably connected to the power supply part, the plug part is electrically connected with the power supply part, the power supply part is provided with a first connecting port and a second connecting port which are adjacently arranged and used for connecting external data lines, and the plug part is provided with a third connecting port used for connecting external data lines. The application has the effects of facilitating charging of the mobile power source and improving the portability of the mobile power source.

Description

Technical Field

[0001] This application relates to the technical field of portable power banks, and in particular to a plug-in portable power bank. Background Technology

[0002] A power bank is a portable energy storage device that stores electrical energy through lithium batteries to charge electronic devices such as mobile phones and tablets. Power banks are suitable for a wide range of scenarios: providing emergency power when a mobile phone runs out of battery, quickly replenishing power to avoid missing important calls; extending the battery life of devices during outdoor activities such as hiking, camping, and travel; eliminating the need to frequently search for power outlets during long working hours in the office or while traveling; and temporarily powering smart home appliances such as flashlights and drones.

[0003] In related technologies, the core components of a power bank include lithium battery cells, a circuit board for intelligent charging and discharging control, input / output interfaces such as USB and Type-C, and protection circuits for overcharging, over-discharging, or short circuit protection. Power banks are small and portable, with a sophisticated internal structure; all components work together to ensure safe and efficient power supply to external devices.

[0004] Regarding the aforementioned technologies, once the power bank's battery has discharged, a separate plug and data cable are usually required for recharging. Carrying an extra plug and data cable to charge the power bank is inconvenient and reduces its portability. Utility Model Content

[0005] To facilitate charging of power banks and improve their portability, this application provides a plug-in power bank.

[0006] The plug-in portable power bank provided in this application adopts the following technical solution:

[0007] A plug-in portable power bank includes a power supply section for supplying power to an external device and a plug section detachably connected to the power supply section. The plug section is electrically connected to the power supply section. The power supply section has a first connection port and a second connection port arranged adjacent to each other for connecting an external data cable. The plug section has a third connection port for connecting an external data cable.

[0008] By adopting the above technical solution, the plug is detachably connected to the power supply unit, and the plug can be directly connected to a socket. After the power bank's battery has discharged, no separate plug is needed; simply combine the plug with the power supply unit and insert it into the socket to charge. Users no longer need to carry a separate plug, reducing the burden of carrying one less item when going out. When charging is needed, as long as there is a socket, the power bank can be charged, eliminating the problem of forgetting the plug. This reduces the number of accessories required for charging, making the power bank more portable in actual use, meeting users' needs for portability, simplifying the charging process, and improving the convenience of charging the power bank.

[0009] Furthermore, the power supply unit includes a power housing, a battery cell disposed within the power housing, a first circuit board disposed within the power housing for controlling charging and discharging, and a positive electrode terminal disposed within the power housing for electrical connection with the plug portion. The power housing has a positive terminal slot on the side near the plug portion for the positive electrode terminal to extend out.

[0010] By adopting the above technical solution, the power supply section is equipped with a first circuit board for controlling charging and discharging. This allows for precise management of the charging and discharging process of the battery cell, ensuring charging efficiency and safety, preventing overcharging, over-discharging, and short circuits, and extending the battery cell's lifespan. Simultaneously, it ensures that the power bank can stably output appropriate voltage and current when charging external devices, improving charging stability and reliability. The positive electrode terminal and its corresponding positive terminal slot provide an electrical connection between the plug section and the power supply section. The positive electrode terminal extends out of the positive terminal slot, allowing the plug section to connect with the power supply section, achieving electrical conductivity between them and ensuring that the charging current can be smoothly transmitted from the plug section to the battery cell.

[0011] Furthermore, the plug portion includes a plug housing, a second circuit board disposed within the plug housing, an electronic component disposed within the plug housing for filtering and voltage regulation, a contact piece movably connected to the plug housing for conducting electricity, and a negative electrode terminal disposed within the plug housing for cooperating with the positive electrode terminal. The plug housing has a negative terminal slot on the side near the power supply portion for the negative electrode terminal to protrude.

[0012] By adopting the above technical solution, the contact piece can be inserted into the socket and make good contact with the electrodes inside the socket, ensuring that the current is smoothly conducted into the plug. When charging is not required, it can also be rotated via the movable connection for easy storage. The negative terminal and the positive terminal of the power supply unit cooperate to form a complete circuit loop. The negative terminal slot allows the negative terminal to protrude, facilitating accurate docking with the positive terminal of the power supply unit and ensuring the reliability and stability of the electrical connection between the plug and the power supply unit. The plug unit is equipped with a second circuit board and electronic components for filtering and voltage regulation, which can effectively remove noise and unstable factors in the current, providing a stable and clean charging current for the power bank's battery cell, helping to protect the battery cell and extend its service life.

[0013] Furthermore, the power supply housing has a connecting protrusion on the side near the plug portion for engaging with the plug portion, and the plug housing has an engagement step for engaging the connecting protrusion.

[0014] By adopting the above technical solution, the connecting protrusion and the interlocking step are matched to ensure that the power supply part and the plug part can be tightly interlocked together. This prevents the plug part from separating from the power supply part due to external impact, shaking or accidental pulling during use, ensuring the stability of the power bank during charging or discharging, avoiding the impact of loose connection on normal charging and discharging functions, and reducing problems such as poor contact.

[0015] Furthermore, the inner wall of the power supply housing is integrally connected with a sliding protrusion at the position of the connecting protrusion, the sliding protrusion is arranged along the length direction of the connecting protrusion, and the outer wall of the plug housing is provided with a strip-shaped guide groove on the engagement step for the sliding protrusion to be engaged and slid.

[0016] By adopting the above technical solution, the sliding protrusion and the strip guide groove provide guidance for the connection between the power supply section and the plug section. When splicing the plug section and the power supply section, the sliding protrusion can smoothly slide into the strip guide groove, accurately aligning the various components (such as positive and negative terminals) of the plug section and the power supply section, avoiding poor connection due to misalignment, and ensuring normal charging and discharging functions. After the sliding protrusion is engaged in the strip guide groove and slides to the appropriate position, the cooperation between the two can further enhance the stability of the connection between the plug section and the power supply section, preventing relative rotation or lateral movement of the plug section in the connected state, making the engagement between the connecting protrusion and the engagement step tighter, and improving the overall structural robustness of the power bank.

[0017] Furthermore, the plug housing has a snap-fit ​​protrusion in the strip guide groove, and the power supply housing has a limiting slot on the sliding protrusion for the snap-fit ​​protrusion to snap into.

[0018] By adopting the above technical solution, the snap-fit ​​protrusion and the limiting slot cooperate with each other, further enhancing the tightness of the connection between the power supply unit and the plug unit, based on the initial connection and positioning achieved by the sliding protrusion and the strip guide groove. When the snap-fit ​​protrusion engages with the limiting slot, it effectively prevents relative axial movement or separation between the plug unit and the power supply unit. Even under significant external pulling or vibration, it ensures that the two maintain a firm connection, guaranteeing that the power bank will not affect normal charging and discharging functions due to loose connections during use. When splicing the plug unit and the power supply unit, the snap-fit ​​protrusion engaging with the limiting slot produces a clear feedback sensation, such as a slight click or "click," allowing the user to intuitively perceive that the two are correctly connected, helping the user confirm the connection success and avoiding loose connections.

[0019] Furthermore, the sidewalls of the sliding protrusion are provided with arc-shaped guide surfaces at both ends for cooperating with the strip guide groove.

[0020] By adopting the above technical solution, when splicing the plug and power supply, the arc-shaped guide surface allows the sliding protrusion to enter the strip guide groove more smoothly. Even if there is a slight deviation in their initial positions, the arc-shaped guide surface can guide the sliding protrusion to slide smoothly into the strip guide groove, reducing alignment difficulty and splicing difficulties caused by misalignment, improving user convenience, and making the insertion process easier and more efficient. During the cooperation between the sliding protrusion and the strip guide groove, the arc-shaped guide surface can prevent the end of the sliding protrusion from rigidly colliding and rubbing against the edge of the strip guide groove, making the contact between the two softer, reducing wear, extending the service life of the sliding protrusion and the strip guide groove, and improving the overall durability of the power bank structure.

[0021] Furthermore, the power supply housing is provided with a connecting wire that is electrically connected to the battery cell and used to connect to external devices, and the power supply housing is provided with a wire storage groove on the side wall for placing and sliding the connecting wire.

[0022] By adopting the above technical solution, the cable tray provides a dedicated space for the connecting cable. When the connecting cable is not in use, it can be neatly stored in the cable tray, eliminating concerns about the cable taking up too much space or getting tangled with other items, making the power bank more portable. The cable tray also provides some protection for the connecting cable, reducing the strain, wear, and bending caused by external forces.

[0023] Furthermore, the connecting cable has a connector for inserting into an external device, and the power housing is provided with a limiting stop bar along the width direction of the cable receiving groove for locking the connector.

[0024] By adopting the above technical solution, the limiting stop can effectively hold the connecting cable in place, preventing it from completely sliding out of the cable storage slot when not in use. When the connecting cable is not in use, the slid-out cable, after being held in place by the limiting stop, forms a ring-shaped structure fixedly connected to the housing, which can be used as a handle. Users can carry the power bank by lifting this "strap". If carrying multiple items, the handle structure makes carrying the power bank easier and more convenient.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. The plug is detachable and can be directly connected to the socket. After the battery cell is discharged, it can be charged without a separate plug, reducing the need to carry charging accessories, reducing the burden of carrying when going out, avoiding the situation of not being able to charge due to forgetting to bring the plug, simplifying the charging process, making the power bank more portable in actual use, and meeting users' needs for portability.

[0027] 2. By using a structure that connects the protruding edge to the interlocking step, guides the sliding protrusion to the strip guide groove and enhances the connection, and uses the snap-fit ​​protrusion and the limiting slot to prevent axial movement or separation, the power supply part and the plug part are tightly connected to prevent separation due to external force, avoid loose connection affecting the charging and discharging function, improve the overall structural robustness of the power bank, and ensure stability during use.

[0028] 3. The power supply housing has a cable tray on the side wall to store the connecting wires, prevent them from getting tangled, reduce external damage to the connecting wires, and form a ring-shaped knot with the limiting strip to further improve portability. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of a plug-in mobile power supply according to an embodiment of this application.

[0030] Figure 2 This is a schematic diagram of the overall structure of the power supply unit in the implementation of this application.

[0031] Figure 3 This is an exploded view of the power supply section in the implementation of this application.

[0032] Figure 4 This is a schematic diagram of the overall structure of the plug portion in the implementation of this application.

[0033] Figure 5 This is an exploded view of the plug portion in the implementation of this application.

[0034] Figure 6 yes Figure 3 Enlarged schematic diagram of the structure connecting the convex edge in part A.

[0035] Figure 7yes Figure 4 Enlarged schematic diagram of the interlocking steps in section B.

[0036] Explanation of reference numerals in the attached drawings: 1. Power supply unit; 11. First connection port; 12. Second connection port; 13. Power supply housing; 131. Positive terminal slot; 132. Cable storage slot; 133. Limiting stop bar; 134. Connecting protrusion; 135. Sliding protrusion; 1351. Arc-shaped guide surface; 136. Limiting slot; 14. Battery cell; 15. First circuit board; 16. Positive electrode terminal; 17. Connecting wire; 171. Connector; 2. Plug unit; 21. Third connection port; 22. Plug housing; 221. Negative terminal slot; 222. Engaging step; 223. Strip guide groove; 224. Snap-fit ​​protrusion; 23. Second circuit board; 24. Electronic component; 25. Negative electrode terminal; 26. Contact piece; 261. Rotating seat. Detailed Implementation

[0037] To make the purpose, technical solution, and advantages of this application clearer, the following description is provided in conjunction with the appendix. Figure 1-7 The present application will be further described in detail with reference to the embodiments.

[0038] This application discloses a plug-in portable power bank. (Refer to...) Figure 1 The plug-in portable power bank includes a power supply unit 1 and a plug unit 2 that is detachably connected to the power supply unit 1. The power supply unit 1 and the plug unit 2 are arranged adjacent to each other and are electrically connected.

[0039] The power supply unit 1 has a first connection port 11 and a second connection port 12 arranged adjacent to each other for connecting an external data cable. In this embodiment, the first connection port 11 is a USB connection port, and the second connection port 12 is a Type-C connection port. The function of the power supply unit 1 is similar to that of a conventional power bank, used for powering external devices.

[0040] Reference Figure 2 and Figure 3 The power supply unit 1 includes a power supply housing 13, a battery cell 14, a first circuit board 15, a positive electrode terminal 16, and a connecting wire 17. The battery cell 14 and the first circuit board 15 are both installed inside the power supply housing 13. The first circuit board 15 can precisely manage the charging and discharging process of the battery cell 14 to ensure charging efficiency and safety, and prevent the battery cell 14 from being overcharged, over-discharged, or short-circuited.

[0041] The positive terminal 16 is installed inside the power housing 13 near the edge. The power housing 13 has a positive terminal slot 131 on the side near the plug 2. The positive terminal 16 extends out of the power housing 13 through the positive terminal slot 131 to make an electrical connection with the plug 2.

[0042] The connecting cable 17 has a connector 171 for inserting into an external device. The connecting cable 17 is electrically connected to the battery cell 14 and is used to connect to the external device. The power supply housing 13 has a cable storage groove 132 on its side wall along the length direction for placing and sliding the connecting cable 17. The power supply housing 13 has a limiting stop 133 along the width direction of the cable storage groove 132 for locking the connector 171.

[0043] When the connecting cable 17 is not in use, it can be stored in the cable tray 132 to prevent wear and tear. At the same time, there is no need to worry about the connecting cable 17 taking up too much space or getting tangled with other items, making the power bank more portable.

[0044] When the connecting cable 17 is not in use, the limiting strip 133 effectively holds the connecting cable 17 in place, preventing it from sliding completely out of the cable storage groove 132. Furthermore, when the connecting cable 17 slides within the cable storage groove 132, the connector 171 is precisely held in place by the limiting strip 133, forming a ring-shaped structure fixedly connected to the power supply housing 13, which serves as a handle for easy carrying of the power bank.

[0045] Reference Figure 4 and Figure 5 The plug portion 2 has a third connection port 21 for connecting an external data cable. In this embodiment, the third connection port 21 is a Type-C connection port. The plug portion 2 includes a plug housing 22, a second circuit board 23, electronic components 24, a negative electrode terminal 25, and contact pieces 26. The second circuit board 23 and electronic components 24 are disposed inside the plug housing 22. In this embodiment, the electronic component 24 is a capacitor used for filtering and voltage regulation. The electronic component 24 can effectively remove noise and unstable factors in the current, providing a stable and clean charging current for the battery cell 14 of the power bank, protecting the battery cell 14, and extending its service life.

[0046] There are two contact pieces 26, and a rotating base 261 for fixing the two contact pieces 26 is movably connected to one side of the plug housing 22. The contact pieces 26 can be inserted into the socket and make good contact with the electrodes inside the socket, ensuring that the current is smoothly conducted into the plug part 2. When charging is not required, it can also be rotated through the movable connection between the rotating base 261 and the plug housing 22, reducing the size of the plug part 2 and making it easier to store.

[0047] The negative terminal 25 is installed inside the plug housing 22 near the edge. The plug housing 22 has a negative terminal slot 221 on the side near the power supply unit 1, allowing the negative terminal 25 to protrude and easily align with the positive terminal 16 of the power supply unit 1. The negative terminal 25 and the positive terminal 16 of the power supply unit 1 cooperate to form a complete circuit loop, ensuring the reliability and stability of the electrical connection between the plug unit 2 and the power supply unit 1.

[0048] Reference Figure 6 and Figure 7 The power supply housing 13 has a connecting protrusion 134 near the plug portion 2 for engaging with the plug portion 2, and the plug housing 22 has an engaging step 222 for engaging the connecting protrusion 134. A sliding protrusion 135 is integrally connected to the inner wall of the power supply housing 13 at the location of the connecting protrusion 134, and the sliding protrusion 135 is arranged along the length of the connecting protrusion 134. A strip-shaped guide groove 223 is formed on the outer wall of the plug housing 22 on the engaging step 222 for the sliding protrusion 135 to engage and slide. A snap-fit ​​protrusion 224 is provided in the strip-shaped guide groove 223 of the plug housing 22, and a limiting slot 136 is formed on the sliding protrusion 135 for the snap-fit ​​protrusion 224 to engage. Arc-shaped guide surfaces 1351 are provided at both ends of the side wall of the sliding protrusion 135 for engaging with the strip-shaped guide groove 223.

[0049] The connecting protrusion 134 and the engagement step 222 ensure a tight engagement between the power supply part 1 and the plug part 2. The sliding protrusion 135 and the strip guide groove 223 provide guidance for the connection between the power supply part 1 and the plug part 2. When the plug part 2 and the power supply part 1 are joined, the sliding protrusion 135 can slide along the strip guide groove 223 to accurately align the positive and negative terminals 25 of the plug part 2 and the power supply part 1, avoiding misalignment that could lead to poor connection. The snap-fit ​​protrusion 224 and the limiting slot 136 cooperate to further enhance the tightness of the connection between the power supply part 1 and the plug part 2. When the snap-fit ​​protrusion 224 is engaged in the limiting slot 136, it can effectively prevent relative axial movement or separation between the plug part 2 and the power supply part 1. When the plug part 2 and the power supply part 1 are connected, the snap-fit ​​protrusion 224 engages with the limiting slot 136, producing a noticeable feedback sensation such as a slight click or a "click," allowing the user to intuitively perceive that the two parts are correctly connected. This helps the user confirm whether the connection is successful and avoids loose connections. The curved guide surface 1351 guides the sliding protrusion 135 to smoothly slide into the strip guide groove 223, reducing alignment difficulty.

[0050] The implementation principle of a plug-in portable power bank according to this application embodiment is as follows: the power supply unit 1 and the plug unit 2 are detachably connected and electrically connected. The connecting protrusion 134 on the power supply housing 13 engages with the engaging step 222 on the plug housing 22. Simultaneously, the sliding protrusion 135 on the inner wall of the power supply housing 13 slides into the strip-shaped guide groove 223 on the outer wall of the plug housing 22, achieving initial connection and positioning. During this process, the arc-shaped guide surfaces 1351 at both ends of the sliding protrusion 135 reduce the difficulty of alignment and facilitate sliding in. Next, the engaging protrusion 224 of the strip-shaped guide groove 223 inside the plug housing 22 engages with the limiting groove 136 on the sliding protrusion 135 of the power supply housing 13, further enhancing the tightness of the connection and preventing axial movement or detachment. The feedback during engagement helps the user confirm successful connection.

[0051] When the power bank needs charging, the contact piece 26 of the plug part 2 is inserted into the socket, ensuring good contact between the contact piece 26 and the electrodes inside the socket to conduct current. The second circuit board 23 and the filtering and voltage-regulating electronic components 24 inside the plug part 2 process the current, removing noise and instability. The negative terminal 25 of the plug part 2 and the positive terminal 16 of the power supply part 1 cooperate to form a complete circuit loop, allowing the current to be smoothly transmitted to the battery cell 14 inside the power supply part 1, thus achieving charging.

[0052] The battery cell 14 inside the power supply unit 1 stores electrical energy. When power is needed to supply power to external devices, the electrical energy is transmitted to the external devices through the connection cable 17, which is electrically connected to the battery cell 14. The first connection port 11 and the second connection port 12 provided in the power supply unit 1 can connect to different types of external data cables to meet the charging needs of various devices.

[0053] When the connecting cable 17 is not in use, it can be stored in the cable storage groove 132 on the side wall of the power supply housing 13 to prevent wear and tangling, thus improving the portability of the power bank. When stored, the connector 171 of the connecting cable 17 is held in place by the limiting strip 133, forming a ring-shaped structure that can be used as a handle for easy carrying. When needed, the connecting cable 17 can be slid out from the cable storage groove 132 and connected to an external device for discharge operation.

[0054] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A plug-in portable power bank, characterized in that: It includes a power supply unit (1) for supplying power to an external device and a plug unit (2) detachably connected to the power supply unit (1). The plug unit (2) is electrically connected to the power supply unit (1). The power supply unit (1) has a first connection port (11) and a second connection port (12) arranged adjacent to each other for connecting an external data line. The plug unit (2) has a third connection port (21) for connecting an external data line.

2. The plug-in portable power bank according to claim 1, characterized in that: The power supply unit (1) includes a power supply housing (13), a battery cell (14) disposed in the power supply housing (13), a first circuit board (15) disposed in the power supply housing (13) for controlling charging and discharging, and a positive electrode terminal (16) disposed in the power supply housing (13) for electrically connecting with the plug part (2). The power supply housing (13) has a positive terminal slot (131) on the side near the plug part (2) for the positive electrode terminal (16) to extend out.

3. A plug-in portable power bank according to claim 2, characterized in that: The plug part (2) includes a plug housing (22), a second circuit board (23) disposed in the plug housing (22), an electronic component (24) disposed in the plug housing (22) for filtering and voltage regulation, a contact piece (26) movably connected to the plug housing (22) for conducting electricity, and a negative electrode terminal (25) disposed in the plug housing (22) for cooperating with the positive electrode terminal (16). The plug housing (22) has a negative terminal slot (221) on the side near the power supply part (1) for the negative electrode terminal (25) to protrude.

4. A plug-in portable power bank according to claim 3, characterized in that: The power housing (13) has a connecting protrusion (134) for engaging with the plug portion (2) on the side near the plug portion (2), and the plug housing (22) has an engagement step (222) for engaging the connecting protrusion (134).

5. A plug-in portable power bank according to claim 4, characterized in that: The inner wall of the power supply housing (13) is integrally connected with a sliding protrusion (135) at the position of the connecting protrusion (134). The sliding protrusion (135) is arranged along the length direction of the connecting protrusion (134). The outer wall of the plug housing (22) is provided with a strip-shaped guide groove (223) on the engagement step (222) for the sliding protrusion (135) to be engaged and slid.

6. A plug-in portable power bank according to claim 5, characterized in that: The plug housing (22) has a snap-fit ​​protrusion (224) in the strip guide groove (223), and the power housing (13) has a limiting slot (136) on the sliding protrusion (135) for the snap-fit ​​protrusion (224) to snap into.

7. A plug-in portable power bank according to claim 5, characterized in that: The sidewall of the sliding protrusion (135) is provided with arc-shaped guide surfaces (1351) at both ends for cooperating with the strip guide groove (223).

8. A plug-in portable power bank according to claim 2, characterized in that: The power supply housing (13) is provided with a connecting wire (17) that is electrically connected to the battery cell (14) and used to connect to external devices. The power supply housing (13) is provided with a wire storage groove (132) on the side wall for placing and sliding the connecting wire (17).

9. A plug-in portable power bank according to claim 8, characterized in that: The connecting cable (17) has a connector (171) for inserting an external device, and the power housing (13) is provided with a limiting stop (133) for locking the connector (171) along the width direction of the cable receiving groove (132).

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