Mobile power supply

Abstract

The utility model provides a mobile power supply, and the interior of a housing is provided with a radial separator plate which divides the housing into a first placement part and a second placement part which are respectively provided with a mainboard and a battery. A bottom connecting piece electrically connected with the mainboard is arranged at the bottom of the second placement part, a pivotable cover plate integrated conducting piece is adopted at the top of the second placement part, a top contact connected with the mainboard is arranged at the top end of the shell, and a double-contact conducting system is formed. When a user pushes a standard lithium battery into the second placement part, the battery contacts the bottom to conduct the main board, and when the cover plate is closed, the conducting piece synchronously contacts the top of the battery and the top contact to form a charging loop. The mechanical lock catch assembly is arranged on the side face of the shell, when the operation end is pressed, the locking end is automatically lifted to complete clamping of the cover plate, and instantaneous replacement of the battery can be achieved through one-hand operation. The partition plate isolates the charging module and the battery bin to reduce interference, a charging interface is reserved in the mainboard to meet the power supply requirement of multiple devices, a double-contact conduction system is matched with the lever lock catch to achieve high efficiency of battery replacement and circuit stability, and the device is particularly suitable for outdoor rapid charging scenes.

Description

Technical Field

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

[0002] When outdoors, people often need to carry power banks to charge their devices. However, most power banks are now square, which takes up a lot of space and is not easy to carry. Moreover, if they run out of power outdoors, there is no way to charge them. Even if there is a charging place, you have to wait for the charging time, which is very inconvenient. Utility Model Content

[0003] In view of the above situation, it is necessary to provide a portable power source that solves at least one of the above problems, comprising:

[0004] A cylindrical shell (1) has a radial partition (2) inside which divides the internal space into a first placement part (3) and a second placement part (4);

[0005] The motherboard (5) is fixed to the first mounting part (3), and the bottom of the second mounting part (4) is provided with a bottom connecting piece (6) that is electrically connected to the motherboard;

[0006] A pivotable cover plate (7) is provided on the top of the housing, and a conductive plate (8) is fixed on the inner surface of the cover plate;

[0007] The top of the housing is provided with a top contact (9) that is electrically connected to the motherboard;

[0008] The latch assembly (10) located on the opposite side of the cover of the housing includes a pivotable locking block (101) which includes an operating end (101a) and a locking end (101b) and forms a lever fulcrum structure with the housing via a connecting rod (102);

[0009] When the cover plate (7) is closed, the conductive piece (8) simultaneously contacts the top of the lithium battery and the top contact (9).

[0010] Preferably, the latch assembly (10) includes a deflection block (103) disposed at the locking end (101b) and a pressure spring (104) disposed at the operating end (101a);

[0011] The cover plate (7) has a groove (11) on one side that is adapted to the insert block. The pressure spring (104) is arranged perpendicularly to the axis of the second mounting part (4) and passes through the housing. One end of the pressure spring (104) is placed in the second mounting part (4).

[0012] Preferably, the upper surface of the insert (103) has a downwardly inclined first slope (103a), and the lower edge of the groove (11) is provided with an upwardly inclined second slope (11a), the inclination angles of the first slope and the second slope being complementary in the range of 15-35 degrees.

[0013] Preferably, the split-type buckle device (12) has:

[0014] Two fixing rods (121) are symmetrically arranged on both sides of the housing. The buckle body (122) has mounting holes (123) on both sides to accommodate the fixing rods. The free end of the buckle body is provided with an iron retaining ring (125) that passes through the through hole (124).

[0015] Preferably, the inner diameter and length of the second mounting part (4) are adapted to the geometric parameters of a standard 21700 lithium battery, the thickness of the separator (2) is in the range of 1.2-1.8mm, and the distance between the bottom connecting piece (6) and the top contact (9) is equal to 90-95% of the length of the standard lithium battery. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the power bank cover when it is opened according to an embodiment of the present invention.

[0017] Figure 2 This is a cross-sectional view of the power bank cover when it is opened according to an embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram of the power bank cover when it is closed according to an embodiment of the present invention.

[0019] Figure 4 This is a cross-sectional view of the power bank cover when it is opened according to an embodiment of the present invention. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the portable power bank of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0021] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "center," "longitudinal," "lateral," "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Please see Figures 1 to 4 A portable power supply according to an embodiment of the present invention includes: a cylindrical housing (1) having a radial partition (2) inside which divides the internal space into a first placement part (3) and a second placement part (4); a main board (5) fixed to the first placement part (3), and a bottom connecting piece (6) electrically connected to the main board at the bottom of the second placement part (4); a pivotable cover plate (7) disposed on the top of the housing, and a conductive piece (8) fixed on the inner surface of the cover plate; a top contact point (9) electrically connected to the main board at the top of the housing; and a latch assembly (10) located on the opposite side of the housing cover plate, including a pivotable locking block (101), which includes an operating end (101a) and a locking end (101b), and forms a lever fulcrum structure with the housing through a connecting rod (102); wherein when the cover plate is closed, the conductive piece (8) simultaneously contacts the top of the lithium battery and the top contact point (9).

[0024] When the user inserts a standard cylindrical lithium battery into the second mounting section (4), the bottom of the battery presses against the bottom connecting piece (6) to connect to the main board (5). After the cover (7) is closed, the conductive piece (8) simultaneously connects the top of the battery to the top contact (9), forming a closed circuit. The locking assembly (10) uses a lever fulcrum structure to make the locking end (101b) lift when the operating end (101a) is pressed down. The locking block (101) automatically locks when the cover is closed by the fulcrum action of the connecting rod (102). This design enables one-handed operation for battery replacement while ensuring instant circuit conduction. When the main board (5) is connected, the user can charge the battery through the charging port configured on the main board (5).

[0025] The cylindrical housing reduces storage space, and the partitioned design ensures circuit stability; the lever-type locking assembly is integrated with the dual-contact conduction system to improve battery swapping efficiency and reliability.

[0026] Please see Figures 1 to 4 In another embodiment, the latch assembly (10) includes an oblique insert (103) disposed at the locking end (101b) and a pressure spring (104) disposed at the operating end (101a); one side of the cover plate (7) is provided with a groove (11) adapted to the insert, the pressure spring (104) is disposed perpendicular to the axial direction of the second placement part (4), and the pressure spring (104) passes through the housing, with one end of the pressure spring (104) placed in the second placement part (4).

[0027] When the battery is inserted, it pushes the pressure spring (104) outward, causing the insert (103) to deflect inward. At this time, the cover plate closing groove (11) aligns with the insert; the spring returns to its original position, driving the insert (103) to engage with the groove (11). The vertically positioned spring transmits pressure through the housing through-hole, ensuring that the locking action is precisely synchronized with the battery installation status.

[0028] The spring and battery mounting linkage design avoids accidental operation, and the vertical layout improves space utilization.

[0029] Please see Figures 1 to 4 In another embodiment, the upper surface of the insert (103) has a downwardly inclined first slope (103a), and the lower edge of the groove (11) is provided with an upwardly inclined second slope (11a), the inclination angles of the first slope and the second slope being complementary in the range of 15-35 degrees.

[0030] When the cover plate closes, the second inclined surface (11a) of the groove contacts and slides with the first inclined surface (103a) of the insert. Since the angles of the inclined surfaces are complementary, the sliding friction force is converted into a downward component force to assist the latch in closing automatically. Experiments show that the closing force is reduced by 40% and there is no jamming at a 25-degree inclination angle.

[0031] The double-sloping engagement design reduces operating resistance and improves the user experience.

[0032] Please see Figures 1 to 4 In another embodiment, the split-type buckle device (12) has: two fixing rods (121) symmetrically arranged on both sides of the housing, mounting holes (123) for the fixing rods are opened on both sides of the buckle body (122), and an iron buckle ring (125) passing through the through hole (124) is provided at the free end of the buckle body.

[0033] The buckle body (122) is connected to the fixing rod (121) through the mounting hole (123) for quick installation and removal. The user can rotate the buckle ring (125) to adjust the suspension angle. The iron buckle ring (125) has two ends that pass through symmetrical through holes (124) to form a closed loop for attaching a hanging rope or belt.

[0034] The split design balances portability and storage with secure wearing.

[0035] Please see Figures 1 to 4 In another embodiment, the inner diameter and length of the second mounting part (4) are adapted to the geometric parameters of a standard 21700 lithium battery, the thickness of the separator (2) is in the range of 1.2-1.8mm, and the distance between the bottom connecting piece (6) and the top contact (9) is equal to 90-95% of the length of the standard lithium battery.

[0036] Taking a 21700 lithium battery (nominal length 70mm) as an example, the length of the second mounting part (4) is designed to be 67mm, ensuring that the top of the battery and the conductive piece (8) retain 3mm of compression to form a reliable contact after insertion. The separator (2) is made of 1.5mm aluminum alloy, which ensures structural strength and avoids wasting space.

[0037] Precise size matching improves battery compatibility and structural safety.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A portable power bank, characterized in that, include: A cylindrical shell (1) has a radial partition (2) inside which divides the internal space into a first placement part (3) and a second placement part (4); The motherboard (5) is fixed to the first mounting part (3), and the bottom of the second mounting part (4) is provided with a bottom connecting piece (6) that is electrically connected to the motherboard; A pivotable cover plate (7) is provided on the top of the housing, and a conductive plate (8) is fixed on the inner surface of the cover plate; The top of the housing is provided with a top contact (9) that is electrically connected to the motherboard; The latch assembly (10) located on the opposite side of the cover of the housing includes a pivotable locking block (101) which includes an operating end (101a) and a locking end (101b) and forms a lever fulcrum structure with the housing via a connecting rod (102); When the cover plate (7) is closed, the conductive piece (8) simultaneously contacts the top of the lithium battery and the top contact (9).

2. The portable power bank as described in claim 1, characterized in that: The latch assembly (10) includes a deflection block (103) disposed at the locking end (101b) and a pressure spring (104) disposed at the operating end (101a); The cover plate (7) has a groove (11) on one side that is adapted to the insert block. The pressure spring (104) is arranged perpendicularly to the axis of the second mounting part (4) and passes through the housing. One end of the pressure spring (104) is placed in the second mounting part (4).

3. The portable power bank as described in claim 2, characterized in that: The upper surface of the insert (103) has a downwardly inclined first slope (103a), and the lower edge of the groove (11) is provided with an upwardly inclined second slope (11a). The inclination angles of the first slope and the second slope are complementary in the range of 15-35 degrees.

4. The portable power bank as described in claim 1, characterized in that... Further includes: The split-type buckle device (12) has the following features: Two fixing rods (121) are symmetrically arranged on both sides of the housing. The buckle body (122) has mounting holes (123) on both sides to accommodate the fixing rods. The free end of the buckle body is provided with an iron retaining ring (125) that passes through the through hole (124).

5. The portable power bank as described in any one of claims 1-4, characterized in that: The inner diameter and length of the second mounting part (4) are adapted to the geometric parameters of the standard 21700 lithium battery. The thickness of the separator (2) is in the range of 1.2-1.8mm. The distance between the bottom connecting piece (6) and the top contact (9) is equal to 90-95% of the length of the standard lithium battery.

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