A portable charger structure

Abstract

The utility model relates to the technical field of charger, disclose a portable charger structure, including casing, control panel in the casing, the casing is the cuboid structure, the width of casing is configured as a, the length of casing is configured as b, the height of casing is configured as c, wherein a = 28mm, a / b is configured as 0.4 0.45, a / c is configured as 0.4 0.45, the bottom surface of casing is equipped with the spurs, the casing is equipped with the reel, the reel is equipped with the chargeable charging wire of winding, the front side of casing is equipped with the lead port, the outer end of charging wire is equipped with the charging connector that projects lead port is outside, the utility model has compact structure, convenient to carry, convenient to use beneficial effect.

Description

Technical Field

[0001] This utility model relates to the field of charger technology, and in particular to a portable charger structure. Background Technology

[0002] With the widespread use of mobile electronic devices, portable chargers have become an indispensable accessory in people's daily lives. However, existing portable chargers still have some shortcomings in terms of portability, ease of use, and storage. For example, traditional chargers are usually bulky and inconvenient to carry, especially when traveling or on business trips. Their protruding prongs and tangled charging cables take up extra space and may scratch other items. Moreover, when used with a socket, a large charger can obstruct the socket's surrounding holes, thus limiting the socket's performance. Therefore, how to design a charger that is more compact, has better prong storage, and is more convenient for charging cable management is a problem that urgently needs to be solved in the current technological field. Utility Model Content

[0003] In order to solve the above-mentioned problems in the prior art, this utility model provides a portable charger structure that is compact, easy to carry, and convenient to use.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A portable charger structure includes a housing and a control board disposed within the housing. The housing has a cuboid structure, with a width of 'a', a length of 'b', and a height of 'c', where a = 28 mm, a / b is configured to be 0.4-0.45, and a / c is configured to be 0.4-0.45. The bottom surface of the housing has prongs, and a cable reel is disposed inside the housing. The cable reel contains a retractable charging cable, and the front side of the housing has a lead-in port. The outer end of the charging cable has a charging connector extending out of the lead-in port.

[0005] By adopting the above technical solution, the width of the casing is configured to 28mm, which meets the limit size of the US standard safety certification. The ratio of width to height and width to length is also limited, so that the overall size of the charger is precisely controlled within a compact range that meets performance requirements. This greatly improves portability and makes it convenient for users to carry with them, solving the problem of the large size of traditional chargers. At the same time, the charging cable is integrated into the casing after being placed in the cable reel. When in use, the charging connector can be pulled out from the lead-in port, and after use, the charging cable can be automatically rewound by the cable reel. Users do not need to carry the charging cable separately, and the charging cable can be prevented from being tangled and affecting use.

[0006] Preferably, the fork is configured as a double-hole pin, and a rotating seat is provided on the control board at the corresponding position of the pin. The pin is rotatably connected to the rotating seat, and the pin is electrically connected to the control board through the rotating seat.

[0007] Preferably, the bottom surface of the housing is provided with a pin seat corresponding to the pin, and the pin seat is provided with a pin receiving groove; when the pin is perpendicular to the bottom surface of the housing, the lower end of the pin extends beyond the bottom surface of the housing; when the pin is rotated to be parallel to the bottom surface of the housing, the pin is completely inserted into the pin receiving groove, so that the end of the pin does not extend beyond the rear side of the housing and the side of the fork does not extend beyond the bottom surface of the housing.

[0008] Preferably, the pin receiving groove is connected to the rear side of the housing, and the pin receiving groove is provided with an adapter protrusion for engaging with the adapter head. The adapter protrusion has slots on both sides and a limiting groove on the bottom surface of the adapter protrusion.

[0009] Preferably, the pins are located at the rear end of the bottom surface of the housing, and the lead-in port is located at the upper end of the front side of the housing.

[0010] Preferably, a magnet is provided on the inner wall of the front side of the housing below the lead-in port; when the charging cable is wound up by the reel, the charging interface is attracted by the magnet when it bends downward.

[0011] Preferably, the front side of the housing has a recessed cavity, the bottom surface of the recessed cavity is 0.4-0.7mm away from the front side of the housing, and the lead port is located on the bottom surface of the recessed cavity. When the charging interface is attracted by a magnet, the charging interface is located in the recessed cavity.

[0012] Preferably, the lower end of the front side of the housing is provided with a charging port for connecting to an external charging cable.

[0013] Preferably, the front side of the housing is provided with a connecting piece on the inner wall corresponding to the lead-in port. The connecting piece is provided with a clearance hole at the corresponding position of the lead-in port. The edge of the clearance hole is provided with an annular boss that protrudes outward and is embedded in the lead-in port. The inner wall of the annular boss is provided with a rounded corner.

[0014] Preferably, the top surface of the shell is provided with a decorative element, the cross-section of the decorative element is U-shaped, the decorative element and the shell are integrally injection molded, the color of the decorative element is different from the color of the shell, the dimension of the decorative element in the length direction of the shell is configured as d, and the a / d is configured as 0.61-0.63.

[0015] Therefore, this utility model has the advantages of being compact in structure, easy to carry, and convenient to use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of one structure of the present utility model.

[0017] Figure 2 for Figure 1 The right view.

[0018] Figure 3 for Figure 1 Axonometric drawing.

[0019] Figure 4 for Figure 3 Another perspective view.

[0020] Figure 5 This is a diagram showing the state where the pins rotate and are retracted into the pin receiving slot.

[0021] Figure 6 This is an exploded view of the present invention. Detailed Implementation

[0022] To make the technical problem to be solved, the technical solution, and the beneficial technical effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and several exemplary embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the scope of protection of the present utility model.

[0023] It should be understood that the terms "first," "second," etc., used herein are for descriptive purposes only and should not be construed as indicating or implying relative importance, nor should they be construed as implicitly specifying the number of technical features indicated. Features specified as "first" or "second" may expressly or implicitly indicate that at least one of those features is included.

[0024] like Figures 1-6 The portable charger structure shown includes a housing 1 and a control board 2 disposed inside the housing 1. The housing 1 has a cuboid structure, with a width of a, a length of b, and a height of c, where a = 28 mm, a / b is configured to be 0.4-0.45, and a / c is configured to be 0.4-0.45. The bottom surface of the housing 1 is provided with a plug 3, and a coil 4 is provided inside the housing 1. The coil 4 contains a retractable charging cable 41. The front side of the housing 1 is provided with a lead-in port 11, and the outer end of the charging cable 41 is provided with a charging connector 42 extending out of the lead-in port 11.

[0025] In some embodiments, b=c=65mm, this size makes the length and height of the shell equal, which is more aesthetically pleasing, and there is no need to adjust the direction of the length and height when holding, carrying, and storing, making it more convenient to use; a=28mm is the minimum size to meet the requirements of US standard safety certification.

[0026] The plug 3 is configured as a double-hole plug. A rotating seat 21 is provided on the control board 2 at the corresponding position of the plug 3. The plug 3 is rotatably connected to the rotating seat 21, and the plug 3 is electrically connected to the control board 2 through the rotating seat 21. A plug seat 12 is provided on the bottom surface of the housing 1 at the corresponding position of the plug 3. The plug seat 12 has a plug receiving groove 121. When the plug 3 is perpendicular to the bottom surface of the housing 1, the lower end of the plug 3 extends beyond the bottom surface of the housing 1. When the plug 3 is rotated to be parallel to the bottom surface of the housing 1, the plug 3 is completely inserted into the plug receiving groove 121, ensuring that the end of the plug 3 does not extend beyond the rear side of the housing 1, and the side of the plug 3 does not extend beyond the bottom surface of the housing 1. The double-hole plug is connected to the control board through the rotating seat 21. The double-hole plug can rotate and be stored more easily. When carrying, the plug can be directly stored in the plug receiving groove, thus allowing the plug to flexibly switch between the use state and the storage state.

[0027] The plug receiving groove 121 is connected to the rear side of the housing 1. The plug receiving groove 121 has an adapter protrusion 122 for engaging with an adapter head. The adapter protrusion 122 has slots 123 on both sides and a limiting groove 124 on its bottom surface. It can be connected to other adapter heads (i.e., power adapters) through the slots and limiting grooves on the adapter protrusion. After the plug is rotated into the plug receiving groove, the adapter head engages with the adapter protrusion, and the adapter head is electrically connected to the plug, thus enabling this charger to adapt to power socket standards of different countries or regions, further expanding its applicability.

[0028] like Figure 3 and Figure 6 As shown, the plug 3 is located at the rear end of the bottom surface of the housing 1, and the lead-in port 11 is located at the upper end of the front side of the housing 1. This arrangement ensures that when the plug is connected to the socket downwards, the charging connector at the lead-in port faces the user, preventing the lead-in port from facing upwards. This prevents dust from entering the lead-in port and allows the user to quickly pull the charging connector out of the lead-in port, further improving ease of use. Simultaneously, it increases the distance between the plug and the charging connector (almost on the diagonal of the housing), thus completely separating the high voltage at the plug from the low voltage at the charging connector, improving safety.

[0029] In some embodiments, to further improve the storage performance of the charging connector, a magnet 5 is provided on the inner wall of the front side of the housing 1 below the lead-in port 11; when the charging cable 41 is wound up by the reel 4, the charging connector 42 is attracted by the magnet 5 when it bends downward. A cavity 13 is provided on the front side of the housing 1, and the distance between the bottom surface of the cavity 13 and the front side of the housing 1 is configured to be 0.4-0.7 mm. The lead-in port 11 is located on the bottom surface of the cavity 13. When the charging connector 42 is attracted by the magnet 5, the charging connector 42 is located inside the cavity 13. When the charging connector is stored, it is located inside the cavity and positioned by the magnet, resulting in neater storage. The cavity design, while meeting the strength requirements of the housing, further reduces the overall length dimension after storage.

[0030] The lower end of the front side of the housing 1 is provided with a charging port 14 for connecting to an external charging cable. A charging cable can be connected to the charging port 14 to further expand the performance of the charger. The charging connector can be any of TYPE-A, TYPE-B, TYPE-C or LIGHTING interfaces, and the charging port 14 can be any of USB-A or TYPE-C.

[0031] A connecting piece 6 is provided on the inner wall of the front side of the housing 1 corresponding to the lead-in port 11. A clearance hole 61 is provided on the connecting piece 6 at the corresponding position of the lead-in port 11. An annular boss 62 protrudes outward and embeds into the lead-in port 11 at the edge of the clearance hole 61. The inner wall of the annular boss 62 has rounded corners. The connecting piece effectively increases the strength at the lead-in port, while the annular boss and rounded corners effectively reduce friction when the charging cable enters and exits the lead-in port, thereby extending the lifespan of the charging cable and providing a smoother experience when unplugging the charging cable.

[0032] The top surface of the housing 1 is provided with a decorative piece 7. The decorative piece 7 has a U-shaped cross-section and is integrally injection molded with the housing 1. The color of the decorative piece 7 is different from that of the housing 1. The length of the decorative piece 7 along the length of the housing 1 is d, and the ratio a / d is 0.61-0.63. The decorative piece 7 is a different color from the housing, and its length is less than that of the housing. This allows the left, right, and top surfaces of the housing to have two colors after the decorative piece is connected to the housing, increasing the visual appeal of the product through color contrast. In some embodiments, a / d = 0.618, which is the golden ratio, further enhancing aesthetics. Furthermore, the location of the decorative piece coincides with the grip area of ​​the charger. The integral injection molding of the decorative piece and the housing improves the pressure resistance of the grip area, reducing the risk of damage to the housing when plugging and unplugging the charger.

[0033] In the description of this utility model, it should be understood that the directions or positional relationships indicated by up, down, left, right, inner end, outer end, one end, and the other end are based on the orientation or positional relationships shown in the accompanying drawings. They are only for the purpose of more clearly describing the technical solution of this utility model, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as a limitation of this utility model.

[0034] Although specific embodiments of the present invention are described in detail herein, they are given for illustrative purposes only and should not be construed as limiting the scope of the present invention. Various substitutions, alterations, and modifications may be conceived without departing from the spirit and scope of the present invention.

Claims

1. A portable charger structure comprising a housing (1), a control board (2) provided in the housing (1), characterized in that, The shell (1) has a cuboid structure, the width of the shell (1) is configured as a, the length of the shell (1) is configured as b, and the height of the shell (1) is configured as c, where a = 28 mm, a / b is configured as 0.4-0.45, and a / c is configured as 0.4-0.45; The bottom surface of the housing (1) is provided with a pin (3), the housing (1) is provided with a winding reel (4), the winding reel (4) is provided with a retractable charging cable (41), the front side of the housing (1) is provided with a lead wire opening (11), and the outer end of the charging cable (41) is provided with a charging connector (42) extending out of the lead wire opening (11).

2. The portable charger structure of claim 1, wherein, The pin (3) is configured as a double-hole pin. A rotating seat (21) is provided on the control board (2) at the corresponding position of the pin (3). The pin (3) is rotatably connected to the rotating seat (21). The pin (3) is electrically connected to the control board (2) through the rotating seat (21).

3. The portable charger structure of claim 2, wherein, The bottom surface of the housing (1) is provided with a pin seat (12) corresponding to the pin (3), and the pin seat (12) is provided with a pin receiving groove (121); when the pin (3) is perpendicular to the bottom surface of the housing (1), the lower end of the pin (3) extends beyond the bottom surface of the housing (1); when the pin (3) is rotated to be parallel to the bottom surface of the housing (1), the pin (3) is completely inserted into the pin receiving groove (121), so that the end of the pin (3) does not extend beyond the rear side of the housing (1) and the side of the pin (3) does not extend beyond the bottom surface of the housing (1).

4. The portable charger structure of claim 3, wherein, The pin receiving groove (121) is connected to the rear side of the housing (1). The pin receiving groove (121) is provided with a connecting protrusion (122) for engaging with the adapter. The two sides of the connecting protrusion (122) are provided with slots (123). The bottom surface of the connecting protrusion (122) is provided with a limiting groove (124).

5. A portable charger structure as claimed in claim 1 or 2 or 3 or 4, wherein, The pin (3) is located at the rear end of the bottom surface of the housing (1), and the lead port (11) is located at the upper end of the front side of the housing (1).

6. The portable charger structure of claim 5, wherein, A magnet (5) is provided on the inner wall of the front side of the housing (1) below the lead wire opening (11); when the charging cable (41) is wound up by the winding reel (4), the charging connector (42) is attracted by the magnet (5) when it bends downward.

7. A portable charger structure according to claim 6, wherein The front side of the housing (1) is provided with a cavity (13). The bottom surface of the cavity (13) is 0.4-0.7mm away from the front side of the housing (1). The lead port (11) is located on the bottom surface of the cavity (13). When the charging connector (42) is attracted by the magnet (5), the charging connector (42) is located in the cavity (13).

8. The portable charger structure of claim 5, wherein, The lower end of the front side of the housing (1) is provided with a charging port (14) for connecting to an external charging cable.

9. The portable charger structure of claim 5, wherein, A connecting piece (6) is provided on the inner wall of the front side of the housing (1) corresponding to the lead hole (11). A clearance hole (61) is provided on the connecting piece (6) corresponding to the lead hole (11). An annular boss (62) protruding outward and embedded in the lead hole (11) is provided at the edge of the clearance hole (61). The inner wall of the annular boss (62) is rounded.

10. The portable charger structure of claim 1, wherein, The top surface of the shell (1) is provided with a decorative part (7). The cross-section of the decorative part (7) is U-shaped. The decorative part (7) and the shell (1) are integrally injection molded. The color of the decorative part (7) is different from the color of the shell (1). The dimension of the decorative part (7) in the length direction of the shell (1) is configured as d, and the a / d is configured as 0.61-0.63.

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