Mobile power supply

Abstract

The utility model discloses a mobile power supply, including casing, install on the casing card solid frame, be located in the power supply component of casing and the charging assembly of electricity connection power supply component, and charging assembly includes charging wire and charging connector, and one end electricity connection power supply component of charging wire, the other end is connected two charging connectors respectively, the utility model discloses through setting the insertion cavity corresponding charging connector on the card solid frame, sets up the solid projection on the slot wall of insertion cavity, sets up the solid slot on charging connector, through the solid projection solid in the solid slot in the insertion cavity of charging connector insertion, can lock charging connector in insertion cavity, makes charging wire form the handle and provides user to pull, through the solid projection and the integral moulding setting of card solid frame, and insertion cavity sets up on the card solid frame, can simplify the manufacturing technology and reduce manufacturing cost.

Description

Technical Field

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

[0002] A portable power bank, also known as a power bank, is used to provide power to electronic devices such as mobile phones and tablets. Portable power banks store electrical energy through built-in lithium-ion batteries or lithium polymer batteries, and then provide charging support for mobile phones, tablets and other electronic devices through USB interfaces, Type-C interfaces, etc.

[0003] Currently, portable power banks with built-in charging cables typically have a detachable charging connector attached to the main body for easy portability. This allows the charging cable to be coiled into a handle for easy carrying. The charging connector generally consists of a connecting plug and a socket. The plug inserts into the interface of an external electronic device to establish an electrical connection. Dual-cable power banks, a typical example of built-in charging cables, are equipped with two charging cables and two independent charging connectors. Their securing mechanism involves two female plugs inside the main body, each forming a cavity. Two locking protrusions are located on the casing of the main body, forming a passageway between them. Each female plug and protrusion corresponds to a charging connector. When securing the charging connector, the plug is inserted into the female plug, and the connector inserts into the passageway between the two locking protrusions. The locking protrusions then engage with the locking grooves on the connector, locking the charging connector in place and thus securing the dual cables.

[0004] However, this fixing method has significant drawbacks: the plug-in female connector and the locking protrusion are separate structures, requiring them to be machined and assembled independently on the power supply body. This design not only increases the complexity of the manufacturing process, such as multiple processes and precision control requirements, but also leads to a significant increase in processing costs, such as increased material loss rate, extended working time, and increased equipment investment. Utility Model Content

[0005] The purpose of this invention is to provide a portable power supply that can solve the above-mentioned problems.

[0006] To achieve the above objectives, this utility model provides the following solution: A portable power bank, comprising: The housing has a receiving cavity; A locking bracket is installed on the housing. The locking bracket has an insertion cavity, and a locking protrusion is provided inside the insertion cavity. The locking protrusion is integrally formed with the locking bracket. The power supply assembly is located within the receiving cavity; and A charging assembly includes a charging cable and a charging connector; one end of the charging cable is electrically connected to the power supply assembly, and the other end is connected to the charging connector; the charging connector is detachably inserted into the cavity, and the surface of the charging connector is provided with a locking groove, and the locking protrusion is locked in the locking groove.

[0007] In one embodiment of this application, there are two locking protrusions in the insertion cavity, and the two locking protrusions are respectively located on opposite sides of the insertion cavity; there are also two locking slots in each of the charging connectors, and the two locking slots are respectively located on opposite sides of the charging connectors, with the locking slots and locking protrusions corresponding one-to-one.

[0008] In one embodiment of this application, the charging connector has an electrical plug and a connector base. One end of the electrical plug is located outside the connector base, and the other end is embedded in the connector base to electrically connect to the charging cable. The retaining bracket has a first wrapping portion and a second wrapping portion connected to the first wrapping portion. The second wrapping portion is located on one side of the first wrapping portion. The first wrapping portion and the second wrapping portion are recessed to form a groove-shaped insertion cavity. The first wrapping portion at least partially wraps the electrical plug, and the second wrapping portion at least partially wraps the connector base. In one embodiment of this application, a first wrapping groove is formed in the first wrapping portion, and a second wrapping groove is formed in the second wrapping portion. The first wrapping groove and the second wrapping groove constitute the insertion cavity. The electrical plug and the connector are respectively inserted into the first wrapping groove and the second wrapping groove, and are respectively matched with the electrical plug and the connector.

[0009] In one embodiment of this application, the retaining bracket has a fitting side that fits against the inner wall of the housing, and the insertion port of the insertion cavity is located on the fitting side.

[0010] In one embodiment of this application, the second wrapping part includes a half tube and a connecting plate. The half tube and the connecting plate are arranged sequentially along the direction from the bottom of the first wrapping groove to the opening of the groove. The locking protrusion protrudes from the connecting plate and is located on the side of the connecting plate facing the first wrapping groove.

[0011] In one embodiment of this application, there are at least two charging cables, charging connectors, and insertion cavities, which are arranged in a one-to-one correspondence. The insertion cavities are arranged side by side on the retaining frame, and the first wrapping groove of each insertion cavity is located on the same first wrapping part.

[0012] In one embodiment of this application, the first packaging groove has a first groove segment and a second groove segment that are connected to each other. The first groove segment is disposed adjacent to the second packaging groove, and the size of the first groove segment gradually decreases in the direction from the second packaging groove to the first packaging groove.

[0013] In one embodiment of this application, the retaining bracket is detachably fixed to the housing.

[0014] In one embodiment of this application, the retaining bracket is detachably fixed to the housing by retaining bracket screws; a connecting groove is provided on the fitting side; a connecting post is provided on the inner wall of the housing corresponding to the connecting groove, the connecting post is provided with a threaded hole, the connecting post is inserted into the connecting groove, and the screw of the retaining bracket screw passes through the retaining bracket and is inserted into the threaded hole, and is threadedly connected to the threaded hole.

[0015] In one embodiment of this application, the retaining bracket is provided with a positioning groove on the fitting side, and the inner wall of the housing is provided with a positioning post, which is inserted into the positioning groove.

[0016] In one embodiment of this application, the charging cable has a first end and a second end disposed opposite to each other. The first end is embedded in the connector seat and electrically connected to the electrical plug-in. The groove wall of the locking groove has a first groove wall surface, which is disposed close to the first end. The first groove wall surface is inclined towards the first end along the direction from the bottom of the locking groove to the opening of the locking groove.

[0017] In one embodiment of this application, the locking protrusion has a first side surface that matches the wall surface of the first groove, and the first side surface is inclined toward the first wrapping part.

[0018] In one embodiment of this application, the groove wall of the locking groove has a second groove wall surface, which is disposed opposite to the first groove wall surface. The second groove wall surface is inclined away from the first end along the direction from the bottom of the locking groove to the opening of the locking groove.

[0019] In one embodiment of this application, the locking protrusion has a second side surface corresponding to the second groove wall surface, and the second side surface is inclined in a direction away from the first wrapping part.

[0020] In one embodiment of this application, the locking groove has a bottom surface located between the first groove wall and the second groove wall, wherein the inclination angle of the second groove wall relative to the bottom surface is greater than the inclination angle of the first groove wall relative to the bottom surface.

[0021] In one embodiment of this application, the power supply component includes a bracket, a first circuit board, an LED module, and a light-shielding plate; the first circuit board is mounted on one side of the bracket; the LED module and the light-shielding plate are both located on the side of the first circuit board facing away from the bracket; the LED module is electrically connected to the first circuit board; the light-shielding plate is located around the LED module; the light-shielding plate has a single-layer structure and is pasted on the first circuit board or the inner wall of the housing, and the thickness of the light-shielding plate is 0.3mm-1.5mm.

[0022] In one embodiment of this application, the power supply component includes a bracket, a first circuit board, an LED module, and a light shield; the first circuit board is mounted on one side of the bracket; the LED module and the light shield are both located on the side of the first circuit board facing away from the bracket; the light shield is located around the LED module, and the light shield has a double-layer structure, including a first light shield layer and a second light shield layer, the first light shield layer being attached to the first circuit board, and the second light shield layer being attached to the inner wall of the housing.

[0023] The portable power bank shown in this utility model has the following advantages compared with the prior art: This invention integrates the locking protrusion and locking frame into a single structure, with both the locking protrusion and locking groove formed on the locking frame, rather than the locking protrusion being formed on the housing. The locking groove can serve as a plug-in female for the charging connector, and the locking protrusion being formed on the locking groove simplifies the manufacturing process and reduces production costs. Furthermore, if the locking protrusion is damaged and cannot properly secure the charging connector, only the locking frame needs to be replaced. Compared to existing designs where the locking protrusion is on the housing, requiring the entire housing to be replaced when the locking protrusion is damaged, this design offers lower replacement costs. Attached Figure Description

[0024] Figure 1 A three-dimensional structural diagram of the mobile power supply provided in an embodiment of this application; Figure 2 An exploded view of the power bank provided in an embodiment of this application; Figure 3 Partial exploded view of the casing provided in the embodiments of this application; Figure 4 A three-dimensional structural schematic diagram of the sub-shell provided in an embodiment of this application; Figure 5 This is a three-dimensional structural diagram of the clamping bracket provided in the embodiments of this application; Figure 6 for Figure 5 The diagram shows a partial structural schematic of the clamping frame; Figure 7 for Figure 5Enlarged view of the area circled in the middle circle A; Figure 8 This is a partial structural schematic diagram of the charging component provided in an embodiment of this application; Figure 9 for Figure 8 Enlarged view of the area circled by circle B; Figure 10 A three-dimensional structural schematic diagram of the charging component provided in an embodiment of this application; Figure 11 A three-dimensional structural diagram of an assembly consisting of a charging component, a sub-housing, an indicator light, an LED module, and a charging interface, provided for an embodiment of this application; Figure 12 for Figure 11 The diagram shows an exploded view of the structural components of the assembly.

[0025] Explanation of reference numerals in the attached figures: 10. Shell; 11. Main shell; 111. First half-shell; 112. Second half-shell; 113. Receiving cavity; 114. Mounting port; 12. Sub-shell; 121. Connector through hole; 122. Mounting hole; 123. Lamp through hole; 124. Interface through hole; 125. Connecting frame; 126. Connecting post; 127. Positioning post; 20. Locking frame; 21. First wrapping part; 211. Fitting side; 22. Second wrapping part; 221. Half tube body; 222. Connecting plate; 23. Insertion cavity; 231. First wrapping groove; 2311. First groove segment; 2312. Second groove segment; 232. Second wrapping groove; 24. Locking protrusion; 241. First side; 242. Second side; 25. Connecting slot; 26. Positioning slot; 30. Charging component; 31. Charging cable; 311. First end; 312. Second end; 32. Charging connector; 321. Connector base; 322. Electrical plug; 323. Locking slot; 3231. First slot wall; 3232. Second slot wall; 3233. Locking slot bottom; 33. Reinforcing component; 331. Limiting protrusion; 34. Locking piece; 40. Power supply component; 41. Bracket; 42. Battery module; 43. First circuit board; 44. Second circuit board; 45. Electrical connecting piece; 46. Electrical connecting wire; 47. Bracket screw; 50. Charging interface; 61. Indicator light; 62. LED module; 70. Light shield; 80. Protective layer. Detailed Implementation

[0026] To facilitate understanding of this utility model, the specific embodiments of this utility model will be described in more detail below with reference to the accompanying drawings.

[0027] Unless otherwise specified or defined, the terms "first," "second," etc., used in this document are for distinguishing names only and do not represent a specific number or order.

[0028] Unless otherwise stated or defined, the term “and / or” as used herein includes any and all combinations of one or more of the related listed items.

[0029] It should be noted that in this article, "fixed to" or "connected to" can mean directly fixed to or connected to a component, or indirectly fixed to or connected to a component.

[0030] Please see Figures 1 to 12 This is a portable power supply shown in an embodiment of the present invention, used for charging electronic devices, such as... Figure 2 As shown, the power bank includes a housing 10, a retaining bracket 20, a charging component 30, and a power supply component 40.

[0031] The casing 10 is the protective structure of the power bank, such as... Figure 3 As shown, the housing 10 has a receiving cavity 113 inside for accommodating other structures disposed inside the housing 10. In a feasible embodiment, such as Figure 3 As shown, the housing 10 is generally rectangular. In other embodiments, the housing 10 may also be generally cubic, cylindrical, or any other arbitrary shape, and the shape of the housing 10 is not specifically limited.

[0032] The retaining bracket 20 is installed on the housing 10, such as Figure 5 As shown, the clamping frame 20 is provided with a cavity 23, each cavity 23 has an inlet and outlet, and each cavity 23 is provided with a clamping protrusion 24, which is integrally structured with the clamping frame 20.

[0033] The charging component 30 is used to electrically connect the power supply component 40 and an external electronic device, so as to deliver the electrical energy stored in the power supply component 40 to the external electronic device, thereby charging the external electronic device; such as Figure 2 As shown, the charging assembly 30 includes a charging cable 31 and a charging connector 32; one end of the charging cable 31 is electrically connected to the power supply assembly 40, and the other end is connected to the charging connector 32; the charging connector 32 is detachably inserted into the cavity 23, and a locking groove 323 is provided on the outer wall of the charging connector 32 corresponding to the locking protrusion 24. The locking protrusion 24 is locked in the locking groove 323 to lock the charging connector 32 onto the locking frame 20, so that the charging cable 31 forms a ring-shaped handle for the user to lift.

[0034] By integrating the locking protrusion 24 and the locking frame 20 into a single structure, both the locking protrusion 24 and the locking groove 323 are formed on the locking frame 20, instead of the locking protrusion 24 being formed on the housing 10. The locking groove 323 can serve as the plug-in female of the charging connector 32, and the locking protrusion being formed on the locking groove 323 simplifies the manufacturing process and reduces manufacturing costs. Moreover, when the locking protrusion 24 is damaged and cannot properly lock the charging connector 32, only the locking frame 20 needs to be replaced. Compared to the existing method of placing the locking protrusion 24 on the housing 10, which requires replacing the entire housing 10 when the locking protrusion 24 is damaged, the replacement cost is lower.

[0035] The charging connector 32 can be any type of connector, such as Micro-USB, Type-C, or Lightning. The housing 10 has a connector through-hole 121 corresponding to the cavity 23. The charging connector 32 passes through the connector through-hole 121 and the inlet / outlet sequentially into the cavity 23, and at least a portion of the charging connector 32 is enclosed by the retaining bracket 20. It should be noted that "the charging connector 32 is detachably inserted into the cavity 23" means that the charging connector 32 can be fixedly inserted into the cavity 23 or removed from the cavity 23, and "at least a portion of the charging connector 32 is enclosed by the retaining bracket 20" means that at least a portion of the outer surface of the charging connector 32 is in contact with the cavity wall of the cavity 23.

[0036] The power supply component 40 is located in the receiving cavity 113 and is used to electrically connect with the charging component 30 to supply power to external electronic devices.

[0037] In some feasible embodiments, such as Figure 3 As shown, the housing 10 includes a main housing 10 and a sub-housing 12. The main housing 10 is the main body of the housing 10, and its volume is larger than that of the sub-housing 12. The main housing 10 and the sub-housing 12 are connected to each other to form the housing 10. The main housing 10 has a mounting port 114 communicating with the receiving cavity 113. The sub-housing 12 is detachably connected to the main housing 10 and covers the mounting port 114. The main housing 10 and the sub-housing 12 can be connected by fasteners such as screws / bolts, or by snap-fit ​​connection using clips and slots. The specific connection method between the main housing 10 and the sub-housing 12 is not limited. A connector through hole 121 is provided on the sub-housing 12.

[0038] For further details, please refer to Figure 3In some embodiments, the main housing 10 includes a first half-shell 111 and a second half-shell 112 that are interlocked, and the first half-shell 111 and the second half-shell 112 are detachably connected. The first half-shell 111 and the second half-shell 112 can be connected by fasteners such as screws / bolts, or they can be connected by snap-fitting with buckles and slots. The specific connection method of the first half-shell 111 and the second half-shell 112 is not limited.

[0039] like Figure 8 As shown, the charging connector 32 has an electrical plug 322 and a connector base 321. One end of the electrical plug 322 is located outside the connector base 321, and the other end is embedded inside the connector base 321 to electrically connect to the charging cable 31. Optionally, as... Figure 5 and Figure 6 As shown, the retaining bracket 20 has a first wrapping portion 21 and a second wrapping portion 22 connected to the first wrapping portion 21. The first wrapping portion 21 is generally square in shape; the second wrapping portion 22 is located on one side of the first wrapping portion 21; a cavity 23 is formed within the first wrapping portion 21 and the second wrapping portion 22. The first wrapping portion 21 at least partially wraps the electrical connector 322, and the second wrapping portion 22 at least partially wraps the connector seat 321. The arrangement of the first wrapping portion 21 and the second wrapping portion 22 of the retaining bracket 20 not only wraps the electrical connector 322, but also wraps the connector seat 321, thereby increasing the wrapping force of the retaining bracket 20 on the charging connector 32, making the charging connector 32 more securely fixed to the power supply body and less likely to fall off the power supply body.

[0040] A first wrapping groove 231 is recessed on the first wrapping portion 21, and a second wrapping groove 232 is recessed on the second wrapping portion 22. The first wrapping groove 231 and the second wrapping groove form a groove-shaped insertion cavity 23. An electrical plug 322 and a connector 321 are respectively inserted into the first wrapping groove 231 and the second wrapping groove 232, and are respectively matched with the electrical plug 322 and the connector 321. The insertion cavity 23 is composed of the first wrapping groove 231 and the second wrapping groove 232, so that one side of the insertion cavity 23 is open, which can reduce the obstruction of the cavity wall of the insertion cavity 23, provide sufficient operating space for processing tools, and facilitate high-precision milling, grinding and other finishing operations on the locking protrusion 24 and the cavity wall of the insertion cavity 23, thereby improving processing efficiency and improving the processing accuracy of the locking protrusion 24 and the cavity wall of the insertion cavity 23.

[0041] Optionally, the retaining bracket 20 has a contact side 211 that adheres to the inner wall of the housing 10. The contact side 211 is specifically located on the first wrapping portion 21 and adheres to the inner wall of the housing 10, specifically the inner wall of the sub-housing 12. The opening of the slotted cavity 23 is located on the contact side 211. This arrangement allows the housing 10 to block the electrical connector 322 within the first wrapping groove 231, preventing the charging connector 32 from slipping out of the groove of the cavity 23 and ensuring that the charging connector 32 is securely attached to the retaining bracket 20.

[0042] Optional, such as Figure 6 As shown, the first wrapping groove 231 has a first groove segment 2311 and a second groove segment 2312 that are connected to each other. The first groove segment 2311 is located adjacent to the second wrapping groove 232, and the size of the first groove segment 2311 gradually decreases in the direction from the second wrapping groove 232 to the first wrapping groove 231. This arrangement makes the first groove segment 2311 form a V-shaped guide structure, which allows the electrical plug 322 to be smoothly inserted into the first wrapping groove 231, avoiding the phenomenon that the electrical plug 322 cannot be inserted or breaks due to obstruction.

[0043] Optionally, please refer to section 6 again. The second wrapping part 22 includes a half-tube 221 and a connecting plate 222. The half-tube 221 and the connecting plate 222 are arranged sequentially along the direction from the bottom to the opening of the second wrapping groove 232. The cross-section of the half-tube 221 is U-shaped along the direction from the bottom to the opening of the second wrapping groove 232. The half-tube 221 wraps a part of the connector seat 321. The locking protrusion 24 protrudes from the connecting plate 222 and is located on the side of the connecting plate 222 facing the second wrapping groove 232. The half-tube 221 may or may not be elastic. The connecting plate 222 is elastic. If both the half-tube 221 and the connecting plate 222 are elastic, their elasticity can achieve adaptive fastening of the connector seat 321. Initially, the connecting plate 222 and the half-tube 221 deform under pressure, allowing the charging connector 32 to pass through the position of the locking protrusion 24. When the locking protrusion 24 is fully inserted into the locking groove 323, the connecting plate 222, under its elastic restoring force, presses the locking protrusion 24 tightly against the groove wall of the locking groove 323, so that the locking protrusion 24 and the groove wall of the locking groove 323 form a mechanical interlock, thereby locking the charging connector 32. At the same time, the half-tube 221, under its elastic restoring force, elastically clamps the connector seat 321, further strengthening the locking of the charging connector 32, thereby achieving a tight connection between the charging connector 32 and the locking frame 20.

[0044] Furthermore, there are two locking protrusions 24 within the insertion cavity 23, located on opposite sides of the cavity 23. Correspondingly, each of the second wrapping portions 22 also has two connecting plates 222, with the two locking protrusions 24 respectively located on the two connecting plates 222. This configuration enables the charging connector 32 to be fixed on both sides, changing from a traditional single-sided locking mechanism to a double-sided locking mechanism, significantly improving the fixation of the charging connector 32. When the user pulls the handle formed by the charging cable 31, the double-sided locking protrusions 24 effectively distribute the force, greatly reducing the possibility of the charger falling off the power supply body. Moreover, compared to a single locking protrusion 24, the double locking protrusions 24 can distribute the force on the locking protrusion 24, making it less prone to wear and thus extending its service life.

[0045] There are at least two of each of the following: charging cable 31, charging connector 32, and socket 23, and they are all provided in corresponding order. Figure 5 As shown, the insertion cavities 23 are arranged side by side on the retaining frame 20, preferably arranged side by side along the direction from the first half shell 111 to the second half shell 112; the first wrapping groove 231 of each insertion cavity 23 is provided on the same first wrapping part 21, and the second wrapping parts 22 are arranged at intervals to avoid the second wrapping parts 22 affecting each other's elastic function.

[0046] The above arrangement places all the insertion cavities 23 on the same retaining frame 20, which simplifies the manufacturing process.

[0047] In some feasible embodiments of this application, the retaining bracket 20 is detachably fixed to the housing 10, specifically to the sub-housing 12.

[0048] Furthermore, the retaining bracket 20 is detachably fixed to the housing 10 by retaining bracket screws; such as Figure 5 As shown, the retaining bracket 20 has a fitting side 211, which is specifically located on the first wrapping part 21. A connecting groove 25 is provided on the fitting side 211. If there are two insertion cavities 23, the connecting groove 25 is located between the two insertion cavities 23. This arrangement ensures that the retaining bracket 20 receives uniform force when pulled by the charging cable 31. Figure 4As shown, a connecting post 126 is provided on the inner wall of the housing 10 (specifically the sub-housing 12) corresponding to the connecting groove 25. The connecting post 126 has a threaded hole. The connecting post 126 is inserted into the connecting groove 25. The screw of the retaining screw passes through the retaining frame 20 along the axial direction of the connecting groove 25 and is inserted into the threaded hole, and is threadedly connected to the threaded hole. The insertion and engagement of the connecting groove 25 and the connecting post 126 can pre-position the retaining frame 20 on the housing 10, avoid misalignment during screw installation, and improve assembly efficiency. Moreover, the threaded hole in the connecting post 126 and the threaded engagement of the retaining screw form a double fixation, which can withstand axial load and suppress radial sway of the retaining frame 20 through the insertion structure, ensuring the connection strength between the retaining frame 20 and the housing 10.

[0049] Optional, such as Figure 5 As shown, the retaining bracket 20 has a positioning groove 26 on the mating side 211, such as Figure 4 As shown, a positioning post 127 is provided on the inner wall of the housing 10 (specifically the sub-housing 12) corresponding to the positioning groove 26, and the positioning post 127 is inserted into the positioning groove 26. The cooperation between the positioning post 127 and the positioning groove 26 can achieve a dual function. The first function is to enable the clamping bracket 20 to be accurately installed on the housing 10, which facilitates the subsequent connection of the clamping bracket 20 and the housing 10 with the clamping bracket screws. The second function is to use the constraint force of the positioning post 127 on the clamping bracket 20 to effectively enhance the anti-displacement ability of the clamping bracket 20 during use, thereby improving the stability of the overall structure.

[0050] Furthermore, there are two positioning posts 127 and two positioning slots 26, which are set one-to-one, with the two positioning slots 26 located at both ends of the first wrapping part 21.

[0051] In some feasible embodiments of this application, such as Figure 8 As shown, the charging cable 31 has a first end 311 and a second end 312 disposed opposite to each other. The first end 311 is embedded in the connector 321 and electrically connected to the electrical plug 322. Figure 9 As shown, the retaining groove 323 has a first groove wall surface 3231 and a groove bottom surface 3233 located at the bottom of the retaining groove 323. The groove bottom surface 3233 is planar and parallel to the axis of the charging connector 32. The first groove wall surface 3231 is located near the first end 311 and is inclined towards the first end 311 along the direction from the bottom of the retaining groove 323 to the opening of the retaining groove 323. By inclining the first groove wall surface 3231, the charging connector 32 can be inserted and removed more smoothly in the insertion cavity 23.

[0052] Understandably, during the insertion of the charging connector 32 into the cavity 23, when the charging connector 32 contacts the locking protrusion 24, the locking protrusion 24 will be compressed, causing the connecting plate 222 to deform. At this time, the inclined first groove wall 3231 of the locking groove 323 can play a guiding role, allowing the locking protrusion 24 to slide more smoothly along the first groove wall 3231 during the deformation of the connecting plate 222, thereby reducing the resistance when the locking protrusion 24 is inserted into the locking groove 323, so that the charging connector 32 can continue to penetrate deeper into the cavity 23 more smoothly, until the locking protrusion 24 is completely inserted into the locking groove 323.

[0053] Preferably, the angle between the first groove wall surface 3231 and the bottom surface 3233 of the slot is 20°-65°, for example, 20°, 25°, 30°, 35°, 40°, 45°, 50°, 55°, 60°, 65°. More preferably, the angle between the groove wall surface and the bottom surface 3233 of the slot is 25°-45°, for example, 25°, 30°, 35°, 40°, 45°.

[0054] Furthermore, such as Figure 7 As shown, the locking protrusion 24 has a first side surface 241 that matches the first groove wall surface 3231. The first side surface 241 is inclined toward the first wrapping part 21. When the charging connector 32 is inserted into the insertion cavity 23, the first side surface 241 faces the first groove wall surface 3231. Preferably, the first side surface 241 is parallel to the first groove wall surface 3231.

[0055] The above configuration allows the locking protrusion 24 to enter the locking groove 323, thereby increasing the contact area between the first groove wall 3231 and the first side surface 241, improving the biting force between the locking protrusion 24 and the locking groove 323, and thus helping to improve the stability of the locking protrusion 24 in the locking groove 323.

[0056] Optional, such as Figure 8 and Figure 9 As shown, the retaining groove 323 has a second groove wall surface 3232, which is disposed opposite to the first groove wall surface 3231. The second groove wall surface 3232 is inclined away from the first end 311 along the direction from the bottom of the retaining groove 323 to the opening of the retaining groove 323. Correspondingly, as Figure 7 As shown, the locking protrusion 24 has a second side surface 242 corresponding to the second groove wall surface 3232. The second side surface 242 is inclined in a direction away from the first wrapping part 21. When the charging connector 32 is inserted into the insertion cavity 23, the second side surface 242 faces the second groove wall surface 3232 and is preferably arranged parallel to the second groove wall surface 3232.

[0057] The above configuration allows the locking protrusion 24 to enter the locking groove 323, thereby increasing the contact area between the locking protrusion 24 and the second groove wall 3232, improving the biting force between the locking protrusion 24 and the locking groove 323, and further helping to improve the stability of the locking protrusion 24 in the locking groove 323.

[0058] Furthermore, such as Figure 9 As shown, the angle between the second groove wall surface 3232 and the groove bottom surface 3233 is greater than the angle between the first groove wall surface 3231 and the groove bottom surface 3233. This arrangement ensures that while increasing the contact area between the locking protrusion 24 and the groove wall of the locking groove 323, it also ensures that the locking protrusion 24 is not easily slipped out of the locking groove 323 along the direction from the first groove wall surface 3231 to the second groove wall surface 3232, thus ensuring the locking ability of the locking groove 323 to lock the locking protrusion 24.

[0059] In one embodiment of this application, such as Figure 2 As shown, the charging assembly 30 also includes a reinforcing member 33 and a retaining clip 34. The reinforcing member 33 is a block structure, and it is simultaneously sleeved on both charging cables 31. The reinforcing member 33 passes through the housing 10, as shown. Figure 4 As shown, specifically, mounting holes 122 are provided on the sub-shell 12. A limiting protrusion 331 is located outside the sub-shell 12, and a retaining piece 34 is secured to the reinforcing member 33 and located within the receiving cavity 113. The reinforcing member 33 is fixed to the sub-shell 12 by the clamping of the limiting protrusion 331 and the retaining piece 34. The reinforcement member 33 prevents the charging cable 31 from directly contacting and rubbing against the shell 10 (specifically, the sub-shell 12), thereby protecting the charging cable 31, reducing wear, and extending its service life.

[0060] In some feasible embodiments of this application, such as Figure 10As shown, the power supply component 40 includes a bracket 41, a battery module 42, a first circuit board 43, and an intermediate electrical connection module. The bracket 41 is a roughly rectangular frame structure used to mount other structures of the power supply component 40. The bracket 41 is detachably connected to one of the first half-shell 111 and the second half-shell 112. The bracket 41 can be connected to the first half-shell 111 / second half-shell 112 by fasteners such as screws / bolts, or by snap-fit ​​connection using clips and slots. The specific connection method between the bracket 41 and the first half-shell 111 / second half-shell 112 is not limited. A mounting groove is formed on the bracket 41; the battery module 42 is installed in the mounting groove and electrically connected to the first circuit board 43; the first circuit board 43 is located on one side of the bracket 41 and is positioned opposite to the sub-shell 12; the intermediate electrical connection module is provided one-to-one with the charging cable 31, and the intermediate electrical connection module includes an electrical connection piece 45 soldered to the first circuit board 43 and an electrical connection line 46 connecting the electrical connection piece 45 and the charging cable 31.

[0061] Optionally, there are two mounting slots, located on both sides of the bracket 41. Correspondingly, there are also two battery modules 42, which are installed in the two mounting slots respectively.

[0062] The battery module 42 includes at least one battery, and when the battery module 42 includes at least two batteries, the batteries are connected in series.

[0063] Optionally, the first circuit board 43 is detachably connected to the bracket 41. When the power bank needs to replace the housing 10 due to appearance issues, this design allows maintenance personnel to simply disconnect the first circuit board 43 from the bracket 41 without performing any operations on the soldered joints between the electrical connector 45 and the first circuit board 43. This design effectively avoids damage to the first circuit board 43 caused by forcibly peeling off the electrical connector 45 during traditional maintenance, thereby ensuring that the functional integrity of the power bank is not affected.

[0064] Furthermore, such as Figure 10 , Figure 11 and Figure 12As shown, the first circuit board 43 is detachably connected to both the bracket 41 and the sub-housing 12 via bracket screws 47. Furthermore, each connection point between the sub-housing 12 and the first circuit board 43 is connected to the bracket 41 via a bracket screw 47. This arrangement reduces the number of bracket screws 47, lowering manufacturing costs. Preferably, there are two bracket screws 47, located diagonally opposite each other on the first circuit board 43. The two diagonally arranged bracket screws 47 form a stable mechanical support structure, effectively dispersing the bending stress and shear force received by the PCB board. Moreover, due to the reduced number of screws, not only are costs lowered, but installation efficiency is also greatly improved. The connection between the sub-housing 12, the first circuit board 43, and the bracket 41 can be achieved with just two screws, and disconnecting the connection between the sub-housing 12, the first circuit board 43, and the bracket 41 only requires removing the two bracket screws 47, which is very convenient. Furthermore, a connecting bracket 125 is provided on the side of the sub-housing 12 facing the first circuit board 43, through which the sub-housing 12 is connected to the first circuit board 43.

[0065] In one embodiment, the electrical connector 45 is made of nickel. Nickel has good electrical conductivity. In other feasible embodiments, the electrical connector 45 may also be made of copper, aluminum, or other materials with good conductivity.

[0066] In some embodiments, the power supply module further includes a second circuit board 44, which is located on the side of the first circuit board 43 facing away from the bracket 41. The second circuit board 44 is perpendicular to the first circuit board 43 and electrically connected to the first circuit board 43. The power bank also includes a charging interface 50, a portion of which is fixed to the second circuit board 44, and the other portion extends into the corresponding interface through hole 124 in the housing 10 (specifically the sub-housing 12). The charging interface 50 is used to connect an external charging cable 31 to deliver electrical energy from an external power source to the battery module 42 to charge the battery module 42 inside the power bank.

[0067] In some feasible embodiments of this application, such as Figure 12 As shown, the power bank also includes an indicator light 61, which is mounted on a sub-housing 12 of the housing 10. The indicator light 61 is located in a corresponding lamp through-hole 123 on the sub-housing 12 and is electrically connected to the first circuit board 43. The indicator light 61 is used to illuminate when the power bank is charging, serving as a charging indicator.

[0068] In some feasible embodiments of this application, such as Figure 12As shown, the power bank also includes an LED module 62 and a light-shielding plate 70. The LED module 62 is mounted on the side of the first circuit board 43 facing away from the bracket 41 and is electrically connected to the first circuit board 43 for illumination. The LED module 62 is positioned opposite to the sub-housing 12, therefore the sub-housing 12 must be made of a material that allows the light emitted by the LED module 62 to pass through. The light-shielding plate 70 is located around the LED module 62 and is attached to the first circuit board 43 and / or to the inner wall of the housing 10 to ensure the luminous effect of the LED module 62. If the light-shielding plate 70 is attached to the inner wall of the housing 10, it is specifically chosen to be attached to the inner wall of the sub-housing 12.

[0069] In one feasible embodiment, the light shield 70 is a single-layer structure with a thickness of 0.3mm-1.5mm. This thickness ensures that the light shield 70 is not too thick and can be firmly adhered to the first circuit board 43 or the inner wall of the housing. In another embodiment, the light shield 70 is a double-layer structure with an overall thickness of 1.5mm-2mm. Due to the relatively thick overall thickness of the light shield 70, if it is directly adhered to the first circuit board 43 or the inner wall of the housing 10, uneven thickness may lead to poor adhesion and displacement. Therefore, the light shield 70 is divided into a first light shielding layer and a second light shielding layer. The first light shielding layer is adhered to the first circuit board 43, and the second light shielding layer is adhered to the inner wall of the housing 10. This layered design reduces the thickness load of single-point adhesion and enhances structural stability through double fixation, effectively preventing the light shield 70 from falling off and ensuring that the normal display of the indicator light 61 is not affected.

[0070] Furthermore, there are two light-shielding plates 70, which are located on opposite sides of the LED module 62.

[0071] In some embodiments, such as Figure 2 As shown, the power supply assembly also includes a protective layer 80, which is an elastic material layer, such as a rubber layer, a silicone layer, or a cotton cloth layer. The protective layer 80 is disposed on the inner side wall of the housing 10 and is held together by the housing 10 and the battery. The protective layer 80 and the housing 10 can be fixed by adhesive or by snap-fit, and the specific connection method between the protective layer 80 and the housing 10 is not limited.

[0072] Through the above-described design, the protective layer 80 can protect the battery and provide sufficient space for its expansion. Furthermore, the housing 10, together with the mounting bracket 41, clamps the battery, further improving the stability of the battery installation and ensuring stable operation of the power supply assembly.

[0073] In summary, this utility model provides a locking frame 20 installed on the housing 10, an insertion cavity 23 on the locking frame 20, a locking protrusion 24 on the groove wall of the insertion cavity 23, and a locking groove 323 on the charging connector 32. By inserting the charging connector 32 into the insertion cavity 23 and then locking it into the locking groove 323 by the locking protrusion 24, the charging connector 32 can be locked in the insertion cavity 23, making the charging cable 31 a handle for the user to lift. By integrally molding the locking protrusion 24 and the locking frame 20, and also setting the insertion cavity 23 on the locking frame 20, the manufacturing process can be simplified and the manufacturing cost reduced. Meanwhile, the cavity 23 on the retaining frame 20 can not only wrap the electrical plug 322 of the charging connector 32, but also wrap the connector seat 321 of the charging connector 32, thus limiting the charging connector 32 and forming physical protection. This can further strengthen the connection between the charging connector 32 and the retaining frame 20, so that the charging connector 32 can be more firmly fixed to the power supply body. Moreover, setting both cavities 23 for inserting the two charging connectors 32 on the retaining frame 20 can also simplify the manufacturing process and reduce the manufacturing cost.

[0074] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A portable power bank, characterized in that, include: The housing has a receiving cavity; A locking bracket is installed on the housing. The locking bracket has an insertion cavity, and a locking protrusion is provided inside the insertion cavity. The locking protrusion is integrally formed with the locking bracket. The power supply component is located within the receiving cavity; and A charging assembly includes a charging cable and a charging connector; one end of the charging cable is electrically connected to the power supply assembly, and the other end is connected to the charging connector; the charging connector is detachably inserted into the cavity, and the surface of the charging connector is provided with a locking groove, and the locking protrusion is locked in the locking groove.

2. The portable power bank according to claim 1, characterized in that, There are two locking protrusions in the insertion cavity, and the two locking protrusions are located on opposite sides of the insertion cavity; there are also two locking slots in the charging connector, and the two locking slots are located on opposite sides of the charging connector. The locking slots and the locking protrusions are arranged in a one-to-one correspondence.

3. The portable power bank according to claim 1, characterized in that, The charging connector has an electrical plug and a connector base. One end of the electrical plug is located outside the connector base, and the other end is embedded in the connector base to electrically connect to the charging cable. The retaining frame has a first wrapping part and a second wrapping part connected to the first wrapping part. The second wrapping part is located on one side of the first wrapping part. The first wrapping part and the second wrapping part are recessed to form a groove-shaped insertion cavity. The first wrapping part at least partially wraps the electrical plug, and the second wrapping part at least partially wraps the connector base.

4. The portable power bank according to claim 3, characterized in that, A first wrapping groove is formed in the first wrapping part, and a second wrapping groove is formed in the second wrapping part. The first wrapping groove and the second wrapping groove form the insertion cavity. The electrical plug and the connector are respectively inserted into the first wrapping groove and the second wrapping groove, and are respectively matched with the electrical plug and the connector.

5. The portable power bank according to claim 4, characterized in that, The retaining bracket has a fitting side that conforms to the inner wall of the housing, and the insertion port of the insertion cavity is located on the fitting side.

6. The portable power bank according to claim 4, characterized in that, The second wrapping part includes a half tube and a connecting plate. The half tube and the connecting plate are arranged sequentially along the direction from the bottom of the second wrapping groove to the opening of the groove. The locking protrusion protrudes from the connecting plate and is located on the side of the connecting plate facing the second wrapping groove.

7. The portable power bank according to claim 4, characterized in that, The charging cable, the charging connector, and the insertion cavity are all at least two in number and are arranged in a one-to-one correspondence. The insertion cavities are arranged side by side on the retaining frame, and the first wrapping groove of each insertion cavity is located on the same first wrapping part.

8. The portable power bank according to claim 4, characterized in that, The first packaging groove has a first groove segment and a second groove segment that are connected to each other. The first groove segment is located adjacent to the second packaging groove, and the size of the first groove segment gradually decreases in the direction from the second packaging groove to the first packaging groove.

9. The portable power bank according to claim 5, characterized in that, The retaining bracket is detachably fixed to the housing.

10. The portable power bank according to claim 9, characterized in that, The retaining bracket is detachably fixed to the housing by retaining bracket screws; a connecting groove is provided on the fitting side; a connecting post is provided on the inner wall of the housing corresponding to the connecting groove, and a threaded hole is provided in the connecting post. The connecting post is inserted into the connecting groove, and the screw of the retaining bracket screw passes through the retaining bracket and is inserted into the threaded hole, and is threadedly connected to the threaded hole.

11. The portable power bank according to claim 9, characterized in that, The retaining bracket has a positioning groove on the fitting side, and the inner wall of the housing has a positioning post, which is inserted into the positioning groove.

12. The portable power bank according to claim 3, characterized in that, The charging cable has a first end and a second end that are arranged opposite to each other. The first end is embedded in the connector and electrically connected to the electrical plug. The groove wall of the locking groove has a first groove wall surface. The first groove wall surface is arranged close to the first end. The first groove wall surface is inclined towards the first end along the direction from the bottom of the locking groove to the opening of the locking groove.

13. The portable power bank according to claim 12, characterized in that, The locking protrusion has a first side surface that matches the wall surface of the first groove, and the first side surface is inclined toward the first wrapping part.

14. The portable power bank according to claim 13, characterized in that, The groove wall of the locking groove has a second groove wall surface, which is disposed opposite to the first groove wall surface. The second groove wall surface is inclined away from the first end along the direction from the bottom of the locking groove to the opening of the locking groove.

15. The portable power bank according to claim 14, characterized in that, The locking protrusion has a second side surface corresponding to the second groove wall surface, and the second side surface is inclined in a direction away from the first wrapping part.

16. The portable power bank according to claim 13, characterized in that, The locking groove has a bottom surface located between the first groove wall and the second groove wall, and the inclination angle of the second groove wall relative to the bottom surface of the groove is greater than the inclination angle of the first groove wall relative to the bottom surface of the groove.

17. The portable power bank according to any one of claims 1 to 16, characterized in that, The power supply assembly includes a bracket, a first circuit board, an LED module, and a light-shielding plate; the first circuit board is mounted on one side of the bracket; the LED module and the light-shielding plate are both located on the side of the first circuit board facing away from the bracket; the LED module is electrically connected to the first circuit board; the light-shielding plate is located around the LED module; the light-shielding plate has a single-layer structure and is pasted on the first circuit board or the inner wall of the housing, and the thickness of the light-shielding plate is 0.3mm-1.5mm.

18. The portable power bank according to any one of claims 1 to 16, characterized in that, The power supply assembly includes a bracket, a first circuit board, an LED module, and a light shield; the first circuit board is mounted on one side of the bracket; the LED module and the light shield are both located on the side of the first circuit board facing away from the bracket; the light shield is located around the LED module, and the light shield has a double-layer structure, including a first light shield layer and a second light shield layer, the first light shield layer being attached to the first circuit board, and the second light shield layer being attached to the inner wall of the housing.

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