A portable power bank

Abstract

This utility model relates to the field of portable power bank technology, specifically to a portable power bank. The portable power bank includes a main shell, a charging cable, and a circuit board. The main shell includes a bottom shell and a side shell surrounding the edge of the bottom shell. The circuit board is installed in the main shell. The side shell has a cable entry opening, through which the charging cable's connecting end passes from the outside of the side shell into the main shell and electrically connects to the circuit board. On the inside of the side shell, a limiting sleeve is fixedly fitted onto the charging cable's connecting end. The limiting sleeve and the inside of the cable entry opening form a barrier, preventing the charging cable's connecting end from being pulled outwards from the side shell. The limiting sleeve abuts against the inside of the cable entry opening, preventing the charging cable's connecting end from being pulled outwards from the side shell. This prevents external force from pulling on the electrical connection point between the charging cable and the circuit board, avoiding poor electrical connection. This utility model uses a limiting sleeve to limit the charging cable's connecting end, resulting in fewer parts, simpler assembly, no need for additional injection molding, convenient processing, and a lower defect rate.

Description

Technical Field

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

[0002] A power bank, also known as a portable charger, is a portable charging device primarily used to charge electronic devices such as smartphones and tablets. It has a built-in rechargeable battery and connects to other devices via a USB interface to provide power. Power banks are typically designed to be small and lightweight, making them easy to carry. Users can take them with them when they are out and about to charge their devices anytime, making them very popular.

[0003] Most power banks now come with a built-in charging cable for convenient charging. The connector of this cable typically extends from the outside of the casing into the circuit board. To prevent the connector from being pulled off by external force and causing poor connection with the circuit board, a locking mechanism is needed. Currently, this locking mechanism is implemented in two ways: first, by using screws and a locking seat to tighten the connector; and second, by directly injection-molding a retaining rib at the connector end to lock it into place with the casing, thus preventing external force from damaging the connection between the connector and the circuit board.

[0004] However, the method of tightening the connecting end with screws requires machining the limiting seat and screws simultaneously, resulting in numerous parts and complicated assembly. On the other hand, the method of directly injection molding the retaining rib at the connecting end requires the charging cable to be assembled with the housing before being transferred to the injection molding line, which is cumbersome and has a higher defect rate. Utility Model Content

[0005] This utility model provides a portable power bank to solve the problems of existing portable power banks having many limiting parts at the charging cable connection end, which makes assembly and processing more complicated and results in a higher defect rate.

[0006] This utility model discloses a mobile power supply, including a main shell, a charging cable, and a circuit board; the main shell includes a bottom shell and a side shell surrounding the edge of the bottom shell; the circuit board is installed in the main shell; the side shell has a wire through hole, and the connecting end of the charging cable passes through the wire through hole from the outside of the side shell into the main shell and is electrically connected to the circuit board.

[0007] On the inner side of the side shell, a limiting sleeve is fixedly fitted on the connecting end of the charging cable. The limiting sleeve and the inner side of the wire insertion hole form a block, so as to limit the connecting end of the charging cable to be pulled outward of the side shell.

[0008] Optionally, a support rib is provided on the bottom shell near the wire insertion port, and the limiting sleeve abuts against the support rib.

[0009] Optionally, a limiting rib is provided on the support rib, and the limiting rib is located on the side of the limiting sleeve away from the wire threading opening.

[0010] Optionally, the support rib includes a opposite rib and two connecting ribs. The opposite rib is arranged opposite to the side shell where the wire hole is located. The two connecting ribs are arranged opposite to each other. One end of one connecting rib is connected to the side shell where the wire hole is located, and the other end is connected to one end of the opposite rib. The other connecting rib is connected to the side shell where the wire hole is located, and the other end is connected to the other end of the opposite rib.

[0011] The limiting sleeve abuts against two connecting ribs, and the limiting protrusion is set on the opposite side rib.

[0012] Optionally, the power bank also includes a front cover, which covers the side cover to seal the main cover; the inner side of the front cover is provided with a limiting baffle extending toward the bottom cover, the lower edge of the limiting baffle extending to the side of the limiting sleeve opposite to the wire hole, and opposite to the side of the limiting sleeve opposite to the wire hole.

[0013] Optionally, the lower edge of the limiting baffle is provided with an inclined surface on the side facing the limiting sleeve, and the inclined surface gradually tilts towards the limiting sleeve from the lower edge to the inner side of the shell.

[0014] Optionally, the limiting sleeve is a ring-shaped metal part, which is fixedly fitted onto the connecting end by riveting.

[0015] Optionally, the ring-shaped metal part is a ring-shaped aluminum buckle.

[0016] Optionally, a wire-passing channel is provided on the outer side of the side shell, next to the wire-passing port, through which the charging end of the charging cable passes and the charging connector of the charging end can be engaged with the wire-passing channel.

[0017] Optionally, on the outer side surface of the side shell, a receiving groove is provided on the side of the wire channel away from the wire opening. The receiving groove is connected to the wire channel, and the charging connector can be accommodated in the receiving groove.

[0018] Optionally, the charging cable is provided with a snap-fit ​​connector, which has a snap-fit ​​groove, and the charging connector of the charging cable can be detachably snapped into the snap-fit ​​groove.

[0019] Compared with the prior art, the advantages of the portable power bank provided by this utility model are as follows: The portable power bank of this utility model has a limiting sleeve fixedly fitted on the connecting end of the charging cable. This limiting sleeve, fixedly fitted on the connecting end of the charging cable, forms a barrier against the inner side of the cable insertion opening. When an external force pulls the charging cable, the limiting sleeve will abut against the inner side of the cable insertion opening, thus limiting the pulling of the connecting end of the charging cable towards the outer side of the side shell. This prevents the external force from pulling on the electrical connection position between the charging cable and the circuit board, avoiding poor electrical connection between the charging cable and the circuit board. This utility model uses a limiting sleeve to limit the connecting end of the charging cable, resulting in fewer parts, simpler assembly, no need for additional injection molding, convenient processing, and a lower defect rate. Attached Figure Description

[0020] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of a portable power bank according to an embodiment of the present invention;

[0022] Figure 2 This is an exploded view of the portable power bank according to an embodiment of the present invention;

[0023] Figure 3 yes Figure 2 A magnified view of part A in the middle;

[0024] Figure 4 This is a schematic diagram of the charging cable according to an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the limiting sleeve according to an embodiment of the present utility model;

[0026] Figure 6 This is a schematic diagram of the main shell of an embodiment of this utility model;

[0027] Figure 7 yes Figure 6 A magnified view of part B in the middle section;

[0028] Figure 8 This is a cross-sectional view of a portable power bank according to an embodiment of this utility model;

[0029] Figure 9 yes Figure 8 A magnified view of part C in the middle;

[0030] Figure 10 This is a schematic diagram of the faceplate of an embodiment of this utility model;

[0031] Figure 11 yes Figure 10 A magnified view of part D in the middle.

[0032] The labels for the attached figures are as follows:

[0033] 1. Main shell; 11. Bottom shell; 111. Support rib; 111a. Opposite side rib; 111a1. Limiting rib; 111b. Connecting rib; 12. Side shell; 121. Wiring port; 122. Wiring channel; 123. Receiving slot; 2. Charging cable; 21. Connecting end; 22. Charging end; 23. Charging connector; 3. Circuit board; 4. Limiting sleeve; 5. Front shell; 51. Limiting baffle; 511. Inclined surface; 6. Rechargeable battery. Detailed Implementation

[0034] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0035] This utility model embodiment provides a portable power supply, such as... Figures 1 to 5 As shown, the power bank includes a main shell 1, a charging cable 2, and a circuit board 3. The main shell 1 includes a bottom shell 11 and a side shell 12 surrounding the edge of the bottom shell 11. The circuit board 3 is installed in the main shell 1. The side shell 12 has a cable entry port 121. The connecting end 21 of the charging cable 2 passes through the cable entry port 121 from the outside of the side shell 12 and enters the main shell 1, and is electrically connected to the circuit board 3. On the inside of the side shell 12, a limiting sleeve 4 is fixedly fitted on the connecting end 21 of the charging cable 2. The limiting sleeve 4 forms a block with the inside of the cable entry port 121, thereby limiting the pulling of the connecting end 21 of the charging cable 2 towards the outside of the side shell 12.

[0036] The power bank of this invention features a limiting sleeve 4 fixedly fitted onto the connecting end 21 of the charging cable 2. This limiting sleeve 4, fixedly fitted onto the connecting end 21 of the charging cable 2, forms a barrier against the inner side of the cable insertion port 121. When an external force pulls on the charging cable 2, the limiting sleeve 4 will abut against the inner side of the cable insertion port 121, preventing the connecting end 21 of the charging cable 2 from being pulled outwards towards the side shell 12. This prevents the external force from pulling on the electrical connection point between the charging cable 2 and the circuit board 3, thus avoiding poor electrical connection between the charging cable 2 and the circuit board 3. This invention uses the limiting sleeve 4 to limit the connection end 21 of the charging cable 2, resulting in fewer parts, simpler assembly, no need for additional injection molding, convenient processing, and a lower defect rate.

[0037] Specifically, during assembly, after the connecting end 21 of the charging cable 2 is inserted into the cable insertion port 121, a retaining sleeve 4 is then placed on the connecting end 21 for fixation. For example... Figure 4 and Figure 5 As shown, the limiting sleeve 4 is a ring-shaped metal piece, which is fitted onto the connecting end 21 of the charging cable 2. The ring-shaped metal piece is fixed to the connecting end 21 by riveting. Specifically, the ring-shaped metal piece is a ring-shaped aluminum buckle. After the limiting sleeve 4 is assembled, the connecting end 21 is soldered to the circuit board 3. The main shell 1 still contains necessary components such as the rechargeable battery 6. The rechargeable battery 6 is connected to the circuit board 3 at one point, which will not be described in detail here.

[0038] like Figure 6 and Figure 7 As shown, a support rib 111 is provided on the bottom shell 11 near the wire passage 121, and the limiting sleeve 4 abuts against the support rib 111. By providing the support rib 111 on the bottom surface of the main shell 1 near the wire passage 121, the limiting sleeve 4 can abut against the support rib 111, thereby obtaining additional support force, making it less prone to displacement, and making the installation more stable.

[0039] Furthermore, combined Figure 8 and Figure 9 As shown, a limiting rib 111a1 is provided on the support rib 111, and the limiting rib 111a1 is located on the side of the limiting sleeve 4 away from the wire passage 121. The limiting rib 111a1 can limit the limiting sleeve 4 on the side of the limiting sleeve 4 away from the wire passage 121, so that the limiting sleeve 4 is kept in the expected installation position, and prevents the connecting end 21 from being pushed further into the main shell 1 by external force, which would pull on the circuit connection between the connecting end 21 and the circuit board 3.

[0040] Specifically, the support rib 111 includes a opposite rib 111a and two connecting ribs 111b. The opposite rib 111a is disposed opposite to the side shell 12 where the wire through port 121 is located. The two connecting ribs 111b are disposed opposite to each other. One end of one connecting rib 111b is connected to the side shell 12 where the wire through port 121 is located, and the other end is connected to one end of the opposite rib 111a. One end of the other connecting rib 111b is connected to the side shell 12 where the wire through port 121 is located, and the other end is connected to the other end of the opposite rib 111a. The limiting sleeve 4 abuts against the two connecting ribs 111b, and the limiting protrusion rib 111a1 is disposed on the opposite rib 111a.

[0041] Furthermore, combined Figure 10 and Figure 11 As shown, the power bank also includes a front cover 5, which covers the side cover 12 to seal the main cover 1. A limiting baffle 51 extending towards the bottom cover 11 is provided on the inner side of the front cover 5. The lower edge of the limiting baffle 51 extends to the side of the limiting sleeve 4 opposite to the cable insertion port 121 and is opposite to the side of the limiting sleeve 4 opposite to the cable insertion port 121. The lower edge of the limiting baffle 51 extending to the side of the limiting sleeve 4 opposite to the cable insertion port 121 and being opposite to the side of the limiting sleeve 4 opposite to the cable insertion port 121 allows the limiting baffle 51 to further restrict the movement of the limiting sleeve 4, preventing the limiting sleeve 4 from moving inwards towards the main cover 1 when pushed by an external force. This effectively blocks the movement of the limiting sleeve 4, thereby protecting the electrical connection position between the charging cable 2 and the circuit board 3 and avoiding poor electrical connection due to loose connection end 21.

[0042] The lower edge of the limiting baffle 51 facing the limiting sleeve 4 has an inclined surface 511, which gradually slopes towards the limiting sleeve 4 from the lower edge to the inner side of the shell 5. The inclined surface 511 design makes the limiting baffle 51 engage more smoothly with the limiting sleeve 4. It also acts as a guide, allowing the limiting sleeve 4 to slide smoothly along the inclined surface 511 during installation, reducing friction and resistance during assembly and thus improving assembly efficiency. During assembly, the limiting sleeve 4 can slide into place more easily without being jammed by the edge of the limiting baffle 51.

[0043] On the other hand, looking back Figure 1On the outer surface of the side shell 12, a wire-passing channel 122 is provided beside the wire-passing opening 121. The charging end 22 of the charging cable 2 passes through the wire-passing channel 122, and the charging connector 23 of the charging end 22 can be engaged with the wire-passing channel 122. The design of the wire-passing channel 122 allows the charging end 22 of the charging cable 2 to be fixed on the side shell 12. When in use, it can be directly extended from the wire-passing channel 122 for use. When not in use, the charging cable 2 can also serve as a lanyard for convenient carrying or hanging. In another embodiment, the charging cable 2 is provided with a snap-fit ​​component with a snap-fit ​​groove. The charging connector 23 of the charging cable 2 can be detachably snapped into the snap-fit ​​groove. The charging connector 23 of the charging cable 2 can be snapped into the snap-fit ​​groove of the snap-fit ​​component, which can both store the charging cable 2 and allow the charging cable 2 to serve as a lanyard for convenient carrying or hanging. The connector can be a separate component, mounted on the charging cable 2, or it can be integrally formed with the surface insulation layer of the charging cable 2. Details will not be elaborated here.

[0044] Specifically, the charging connector 23 can be a USB Type-C interface, a MicroUSB interface, a Lightning interface, etc.

[0045] On the outer surface of the side shell 12, a receiving groove 123 is provided on the side of the wire channel 122 away from the wire opening 121. The receiving groove 123 is connected to the wire channel 122, and the charging connector 23 can be accommodated in the receiving groove 123. The charging connector 23 is stored in the receiving groove 123, making the overall size of the power bank more compact and easy to carry.

[0046] It should be understood that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some of the technical features; and all such modifications and substitutions should fall within the protection scope of the appended claims of this utility model.

Claims

1. A portable power bank, characterized in that, The device includes a main shell, a charging cable, and a circuit board. The main shell includes a bottom shell and a side shell surrounding the edge of the bottom shell. The circuit board is installed in the main shell. The side shell has a through-hole for the charging cable to pass through the through-hole from the outside of the side shell into the main shell and to be electrically connected to the circuit board. On the inner side of the side shell, a limiting sleeve is fixedly sleeved on the connecting end of the charging cable. The limiting sleeve forms a block with the inner side of the wire insertion port to limit the connecting end of the charging cable from being pulled toward the outer side of the side shell. A support rib is provided on the bottom shell near the wire insertion port, and the limiting sleeve abuts against the support rib; a limiting rib is provided on the support rib, and the limiting rib is located on the side of the limiting sleeve away from the wire insertion port; The power bank also includes a front cover, which covers the side cover to seal the main cover; the inner side of the front cover is provided with a limiting baffle extending toward the bottom cover, the lower edge of the limiting baffle extending to the side of the limiting sleeve opposite to the wire hole, and opposite to the side of the limiting sleeve opposite to the wire hole.

2. The portable power bank according to claim 1, characterized in that, The supporting rib includes a counter-side rib and two connecting ribs. The counter-side rib is disposed opposite to the side shell at the location of the threading opening. The two connecting ribs are disposed opposite to each other. One end of one connecting rib is connected to the side shell at the location of the threading opening, and the other end is connected to one end of the counter-side rib. The other connecting rib is connected to the side shell at the location of the threading opening, and the other end is connected to the other end of the counter-side rib. The limiting sleeve abuts against the two connecting ribs, and the limiting rib is disposed on the opposite side rib.

3. The portable power bank according to claim 1, characterized in that, The lower edge of the limiting baffle is provided with an inclined surface on the side facing the limiting sleeve, and the inclined surface gradually tilts towards the limiting sleeve from the lower edge to the inner side of the shell.

4. The portable power bank according to any one of claims 1 to 3, characterized in that, The limiting sleeve is a ring-shaped metal part, which is fixedly fitted onto the connecting end by riveting.

5. The portable power bank according to any one of claims 1 to 3, characterized in that, On the outer side surface of the side shell, a wire-passing channel is provided next to the wire-passing port. The charging end of the charging cable passes through the wire-passing channel, and the charging connector of the charging end can be engaged with the wire-passing channel.

6. The portable power bank according to claim 5, characterized in that, On the outer side surface of the side shell, a receiving groove is provided on the side of the wire channel away from the wire opening. The receiving groove is connected to the wire channel, and the charging connector can be accommodated in the receiving groove.

7. The portable power bank according to any one of claims 1 to 3, characterized in that, The charging cable is provided with a snap-fit ​​component, and the snap-fit ​​component has a snap-fit ​​groove, so that the charging connector of the charging cable can be detachably snapped into the snap-fit ​​groove.

Images