A portable charger

Abstract

The utility model discloses a portable charger, including charger main part and apron, the utility model discloses a can overturn apron and the lateral plate of lateral surface setting are closed to the blocking operation of containing groove, and then make the charging wire can be effectively screened in containing groove when not using, can effectively avoid the exposure of charging wire and the invasion of external impurity, promote the protection effect to charging wire, avoid its damage and lead to charging danger, and when charging, the temperature change of temperature -sensitive colour change decal due to the collection of internal battery heat can make the temperature change of temperature -sensitive colour change decal, the position and colour of temperature -sensitive colour change decal that can judge the approximate temperature by observing the temperature change, and then can discover in time whether the internal battery of charger appears the breakdown or charging wire appears the damage, and then convenient in time and leave charger, further improve use safety, have the advantage such as wire harness protection, good protection effect, high safety.

Description

Technical Field

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

[0002] A power bank or portable charger is a portable charger that can be carried by the user and stores its own electrical energy. It is primarily used to charge consumer electronic products such as handheld mobile devices (e.g., cordless phones, laptops), especially in situations where there is no external power supply. Its main components include: a battery for energy storage, and a circuit for stabilizing the output voltage (DC-DC converter). Most power banks come with a charger to charge their built-in battery.

[0003] Currently, some portable chargers come with a charging cable that is clipped onto the charger surface for convenient use. However, the lack of protective measures around the charging cable increases its risk of damage due to prolonged exposure, thus threatening safety during subsequent use. Overall, the performance is not ideal and there is room for improvement.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a portable charger that offers advantages such as wire harness protection, good protection effect, and high safety, thereby solving the problems mentioned in the background technology.

[0006] (II) Technical Solution To achieve the advantages of wire harness protection, good protection effect, and high safety, the specific technical solution adopted by this utility model is as follows: A portable charger includes a charger body and a cover plate. A receiving groove is formed on the surface of the charger body. A cover plate is rotatably connected to one side of the receiving groove. A right side plate is installed at the bottom of one side of the cover plate. A magnetic groove is provided at one bottom end of the cover plate. A magnetic strip is installed at one end of the receiving groove corresponding to the magnetic groove. A warning groove is formed on one side of the receiving groove at the top of the charger body. Several sets of temperature-sensitive color-changing stickers are evenly arranged inside the warning groove. A shielding plate is installed at the top of the warning groove.

[0007] Furthermore, the shielding sheet is made of transparent acrylic sheet.

[0008] Furthermore, the receiving groove is evenly provided with several sets of slots, and a charging cable is attached to the inside of each slot.

[0009] Furthermore, several sets of ports are provided on one side of the charger body.

[0010] Furthermore, a gripping groove is provided at the top of the cover plate.

[0011] Furthermore, magnets are embedded on the surface of the magnetic strip and inside the magnetic groove.

[0012] Furthermore, the charger body contains a charging component.

[0013] Furthermore, a heat dissipation hole is provided on one side of the bottom of the charger body, and a dustproof mesh is attached to the surface of the heat dissipation hole.

[0014] (III) Beneficial Effects Compared with the prior art, the present invention provides a portable charger with the following advantages: This invention utilizes a flip-up cover and side panels to seal and conceal the charging cable in the receiving slot when not in use. This effectively prevents the cable from being exposed and protected from external impurities, enhancing the protection of the charging cable and preventing damage that could lead to charging hazards. Furthermore, during charging, the heat generated by the internal battery causes the thermochromic sticker to change color due to temperature variations. By observing the location and color of the thermochromic sticker, the approximate temperature can be determined, allowing for timely detection of battery malfunctions or cable damage. This facilitates timely removal from the charger, further improving safety. The invention offers advantages such as cable harness protection, excellent protection effect, and high safety. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a portable charger proposed in this utility model; Figure 2 This is a schematic diagram of the connection structure between the cover plate and the side plate of this utility model; Figure 3 This is a schematic diagram of the internal structure of the receiving groove of this utility model; Figure 4 This is a schematic diagram of the internal structure of the warning groove of this utility model.

[0017] In the picture: 1. Charger body; 2. Receiving slot; 3. Charging cable; 4. Card slot; 5. Magnetic strip; 6. Socket; 7. Warning slot; 8. Temperature-sensitive color-changing sticker; 9. Shielding plate; 10. Magnetic slot; 11. Grip slot; 12. Cover plate; 13. Side plate. Detailed Implementation

[0018] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0019] According to an embodiment of the present invention, a portable charger is provided.

[0020] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4 As shown, a portable charger according to an embodiment of the present invention includes a charger body 1 and a cover plate 12. A receiving groove 2 is provided on the surface of the charger body 1. The cover plate 12 is rotatably connected to one side of the receiving groove 2. A right side plate 13 is installed at the bottom of one side of the cover plate 12. A magnetic groove 10 is provided at one bottom end of the cover plate 12. A magnetic strip 5 is installed at one end of the receiving groove 2 corresponding to the magnetic groove 10. A warning groove 7 is provided on one side of the receiving groove 2 at the top of the charger body 1. Several sets of temperature-sensitive color-changing stickers 8 are evenly arranged inside the warning groove 7. A shielding plate 9 is installed at the top of the warning groove 7. The receiving groove 2 is provided along the length of the surface of the charger body 1. The groove is a rectangular groove with a depth adapted to the thickness of the charging cable 3 and a width adapted to multiple charging cables 3 placed side by side. The edges of the groove are rounded to avoid scratching the outer sheath of the charging cable 3. The location of the receiving groove 2 avoids the core heat-generating area of ​​the battery and PCB board inside the body to prevent the charging cable 3 from being in contact with the high-temperature area for a long time and accelerating aging.

[0021] like Figure 1 and Figure 4As shown, the shielding plate 9 is made of transparent acrylic sheet. A warning groove 7 is opened on one side of the receiving groove 2 and on the top of the charger body 1. This is a shallow rectangular groove. Several sets of temperature-sensitive color-changing stickers 8 are evenly pasted along the length of the groove, distributed according to a temperature gradient. The stickers use reversible temperature-sensitive pigments; for example, they are colorless at 30℃, light yellow at 40℃, orange-red at 50℃, and dark red at 60℃. The color-changing pattern is set for ease of understanding. The specific color-changing pattern can be set according to different manufacturers and the composition of the temperature-sensitive pigments, which will not be elaborated on here. The pasting position corresponds to the top of the core heat-generating components inside the charger, such as the lithium battery or PCB board, ensuring that internal temperature changes can be quickly conducted to the stickers. The top of the warning groove 7... The entire warning groove 7 is covered by a shielding sheet 9. The transparent acrylic sheet is bonded to the edge of the warning groove 7 with environmentally friendly adhesive. The shielding sheet 9 completely covers the warning groove 7, protecting the thermochromic sticker 8 from scratches by fingernails or hard objects, reducing the wear rate of the sticker, and without affecting the user's observation of the sticker's color change. The opening position of the warning groove 7 corresponds one-to-one with the internal heating components. For example, the sticker corresponding to the lithium battery monitors the battery temperature, and the sticker corresponding to the PCB board monitors the circuit temperature, avoiding temperature "misalignment" that could lead to inaccurate warnings. The thermochromic sticker 8 is tightly attached to the bottom of the warning groove 7 without air gaps, ensuring rapid heat conduction. The transparency of the shielding sheet 9 ensures that the user can observe the warning status without disassembly, while its hardness can withstand daily friction, preventing the sticker from falling off or getting dirty. During charging, if the internal lithium battery overheats (e.g., exceeding 50℃) or if the PCB board malfunctions and overheats, the corresponding thermochromic sticker 8 will change color. Users can visually observe the color change through the shield 9, such as from light yellow to orange-red, and immediately stop using the charger to avoid risks like bulging or fire due to overheating, thus reducing the accident rate. The gradient color design of the thermochromic sticker 8 helps users initially judge the charger's temperature range; no color indicates normal, and red indicates danger, eliminating the need for additional equipment testing and improving safety and convenience. The thermochromic powder inside the thermochromic sticker 8 is commonly used in daily life, such as color-changing mugs. The color-changing principle: thermochromic materials are commonly known as thermochromic powder. It mainly consists of three parts: color-changing dye, color developer, and solvent. At high temperature, the color-changing dye and color developer dissolve and disperse in the solvent, and the system appears white. When the temperature decreases, the solvent gradually solidifies, and the color-changing dye and color developer move closer to each other. Under the action of the color developer, the color-changing dye undergoes a structural change, thus causing the system to display color. By controlling the solidification temperature of the solvent, thermochromic products that change color at different temperatures can be prepared, and all of them can be obtained on mainstream shopping software. Moreover, the range of thermochromic color change can be designed by the user. For example, the thermochromic material of Guangzhou Jingcai Pigment Technology Co., Ltd. can achieve color change at different temperatures by changing the color of the thermochromic powder and the color composition of the base pigment. This will not be elaborated further here.

[0022] like Figure 1 and Figure 3 As shown, several sets of slots 4 are evenly distributed inside the receiving slot 2. The charging cable 3 is inserted into the slot 4. Several sets of slots 4 are evenly distributed along the length of the receiving slot 2. The slot 4 is an arc-shaped groove with an arc that matches the outer sheath of the charging cable 3. The width of the slot is slightly smaller than the diameter of the charging cable 3. The interference fit ensures that the charging cable 3 is securely inserted without any looseness. The charging cable 3 usually comes with 2-3 wires. The fixed ends of the wires, such as those with Type-C, Lightning, and Micro-USB interfaces, are soldered to the PCB board inside the charger body 1. The wires can be completely inserted into the slots 4, with the interface ends protruding from the edge of the receiving slot 2 for easy removal and use. The interference fit of the slots 4 ensures that the charging cable 3 does not wobble when stored. Even if the charger is dropped, the charging cable 3 will not come out of the slots 4.

[0023] like Figure 1 As shown, several sets of ports 6 are provided on one side of the charger body 1. Interface holes are opened on the surface of one side of the charger body 1 to embed several sets of ports 6, which usually include USB-A and Type-C, and some include Lightning interfaces. The ports 6 are embedded and fixed to the internal PCB board by soldering wires. The interface shell and the main body shell are sealed with waterproof rubber rings to ensure stable current during charging and no risk of poor contact or short circuit.

[0024] like Figure 1 and Figure 2 As shown, a gripping groove 11 is provided at the top of the cover plate 12. The gripping groove 11 is located in the middle of the top of the cover plate 12. The arc-shaped groove is adapted to the depth of the fingertips, making it convenient for users to pry open the cover plate 12 with their fingertips to achieve flipping and opening, solving the problem of traditional cover plates 12 being "difficult to pry open". The position design of the gripping groove 11 makes it easy to exert force with the fingers. The cover plate 12 flips without jamming, and the charging cable 3 can be taken out and put back smoothly, improving the efficiency of use.

[0025] like Figure 1 and Figure 2As shown, magnets are embedded in the surface of the magnetic strip 5 and inside the magnetic groove 10. A cover plate 12 is rotatably connected to one side of the receiving groove 2. The cover plate 12 is a rectangular plate that matches the size of the receiving groove 2 and can be rotated from 0 to 180° to open and close the receiving groove 2. A side plate 13 is integrally formed or glued to the bottom of one side surface of the cover plate 12. The side plate 13 is a rectangular thin panel with a height consistent with the depth of the receiving groove 2 and a width consistent with the side length of the cover plate 12. When the cover plate 12 is closed, the side plate 13 can completely fit into the receiving groove 2. The side walls of the cover plate 12 form a double seal of "top-side". A magnetic groove 10, a rectangular recess, is opened at one end of the bottom of the cover plate 12, with a magnet embedded inside. A magnetic strip 5, a bar magnet, is installed inside the receiving groove 2 at a position corresponding to the magnetic groove 10. Its magnetism is opposite to that of the magnet on the cover plate 12. When the cover plate 12 is closed, the magnetic groove 10 and the magnetic strip 5 are precisely aligned, and the magnets attract each other, achieving automatic locking of the cover plate 12 without the need for additional clips. This ensures convenient operation and a tight seal of the receiving groove 2. When closed, its top surface is flush with the surface of the charger body 1, without any protrusions, making it easy to store. The side plate 13 fits tightly against the side wall of the receiving slot 2. The magnetic strip 5 and the magnetic slot 10 ensure that the cover plate 12 is not loose, forming a "three-sided closed" structure. The top and sides of the receiving slot 2 are covered by the cover plate 12 and the side plate 13, and the bottom is the main shell, completely enclosing the charging cable 3 with no exposed parts, preventing the outer sheath of the charging cable 3 from being scratched, worn, or contaminated by dust or liquid; receiving slot 2 + cover plate 12 + side plate The combination of 13+card slot 4 transforms the charging cable 3 from an "exposed state" to a "closed storage state," preventing the charging cable 3 from rubbing against hard objects such as keys and coins in pockets and backpacks for extended periods, reducing the wear rate of the outer sheath. It also prevents dust and sweat from entering the charging cable 3 interface, reducing the interface contact failure rate and extending the lifespan of the charging cable 3. The magnetic locking and gripping slot 11 work together to achieve "one-click opening and closing," eliminating the need for manual buckle engagement, making operation effortless and suitable for quick access needs in outdoor, commuting, and other scenarios.

[0026] like Figure 1As shown, the charger body 1 houses a charging component. The charger body 1 serves as the core supporting all external structures and internal components. The charging component, including a lithium battery, is secured internally with clips and screws. A PCB circuit board manages charging and discharging, and provides overvoltage / overcurrent / overheat protection. A heat sink is attached to the battery and PCB board to assist in heat conduction. The lithium battery and PCB board are connected by wires. The PCB board has pre-reserved interface solder points for connecting the external connector 6 and the charging cable 3. This structure forms the basic components of a portable charger, such as a power bank. The lithium battery and PCB board are staggered along the length of the body. The heat sink is attached to the side of the lithium battery and the top surface of the PCB board, forming a "heat generation-heat dissipation" pathway. The receiving slot 2 is located in an area on the body surface without internal components, ensuring that the slot opening does not affect the internal structural strength. The charging component performs the core function of "energy storage-discharge," providing power to devices such as mobile phones and tablets. The main body shell protects the internal components from external impacts. The receiving slot 2 provides dedicated storage space for the charging cable 3, preventing it from separating from the body and being lost. It also provides an installation reference for protective structures such as the cover plate 12 and side plates 13.

[0027] like Figure 1As shown, a heat dissipation hole is provided on one side of the bottom of the charger body 1, and a dustproof mesh is attached to the surface of the heat dissipation hole. Several sets of heat dissipation holes are provided on one side of the bottom of the charger body 1. The holes are positioned to avoid the hand grip area to prevent burns during charging. They correspond to the positions of the internal heat sink, allowing heat to be quickly dissipated through the heat dissipation holes. The dustproof mesh is attached to the surface of the heat dissipation holes with double-sided tape, completely covering the heat dissipation holes and preventing dust, lint, and other impurities from entering the charger and avoiding short circuits caused by the accumulation of impurities. When the port 6 is working, the charging current generates a small amount of heat, which, together with the heat from the lithium battery and PCB board, is conducted to the main body shell through the internal heat sink and then dissipated through the bottom heat dissipation holes, improving heat dissipation efficiency. The mesh design of the dustproof mesh does not obstruct airflow. It can also intercept impurities, achieving a dual function of "heat dissipation and dust prevention"; the socket 6 and heat dissipation holes are located on the side and bottom of the main body respectively, avoiding the grip area on the top and front of the main body. When the user holds the charger, their hand will not block the heat dissipation holes, ensuring smooth heat dissipation, and will not directly contact the hot socket 6 to avoid burns; multiple sockets 6, such as USB-A + Type-C, can charge different devices at the same time, such as mobile phones, headphones, and tablets, and are compatible with mainstream digital products on the market, eliminating the need to carry additional adapters; in the storage state: the charging cable 3 is fully inserted into the slot 4 of the receiving slot 2, the cover 12 flips and closes, the magnetic slot 10 and the magnetic strip 5 are attracted and locked, and the side plate 13 fits against the side of the receiving slot 2 to form a closed space: the charging cable 3 is not exposed, avoiding wear and tear. Pollution; The thermochromic sticker 8 is protected by the shielding plate 9, and the heat dissipation holes are blocked by dust through the dustproof mesh; Charging preparation: The user uses their fingertips to pry open the cover plate 12 by gripping the slot 11, overcoming the magnetic attraction, and takes out the required charging cable 3, such as a Type-C cable, from the slot 4. One end of the charging cable 3 is inserted into the corresponding port 6 of the charger body 1, and the other end is connected to the device to be charged; Safe charging: During charging, the heat generated by the internal lithium battery and PCB board is conducted to the main body shell through the heat sink and then discharged from the bottom heat dissipation holes; If the internal temperature rises abnormally, such as exceeding 50°C, the thermochromic sticker 8 at the corresponding position will change from light yellow to orange-red. The user can observe the color change through the transparent shielding plate 9 and unplug the device in time to stop charging; Use Post-charge storage: After charging is complete, unplug the charging cable 3, re-insert the cable into the slot 4, flip the cover 12 to the closed position, and the magnetic strip 5 will automatically attract and lock, restoring the closed storage state; Cable harness protection: The closed storage structure of the receiving slot 2 + cover 12 + side plate 13 + slot 4 isolates the charging cable 3 from external friction and impurities, solving the pain point of "exposed and easily damaged" charging cable 3 in traditional chargers, and extending the service life of the charging cable 3; High safety: The temperature-sensitive color-changing sticker 8 provides real-time warning of overheating risk, combined with internal overvoltage / overcurrent protection, providing double safety protection to avoid charging accidents and improving the safety factor; At the same time, the magnetic locking and gripping slot 11 design reduce the difficulty of operation, allowing one person to open and close and take out the cable with one hand, meeting the convenience requirements of "portability".

[0028] Working Principle: In actual use, when the portable charger needs to be used, the cover 12 can be opened by gripping the slot 11, exposing the receiving slot 2. Then, the user can select the appropriate type of charging cable 3 according to the phone model. By pulling the charging cable 3 out of the slot 4, it can be connected to the phone for charging. Similarly, when not in use, the charging cable 3 can be returned to the slot 4, and the cover 12 can be flipped back over, allowing the magnetic groove 10 at the bottom of the cover 12 to attract the magnetic strip 5 inside the receiving slot 2, thus covering the receiving slot 2. Since the cover 12 also has a side plate 13, the side plate 13 can be used to cover the receiving slot 2. The device shields the charging cable 3, achieving a fully enclosed operation and completely sealing the receiving slot 2. This effectively prevents the charging cable 3 from being exposed and the intrusion of external impurities, thus enhancing the protection of the charging cable 3 and preventing damage that could lead to charging hazards. Furthermore, during charging, the heat generated by the internal battery causes the temperature-sensitive color-changing sticker 8 to change color due to temperature variations. By observing the location and color of the color-changing sticker 8, the approximate temperature can be determined, allowing for timely detection of whether the internal battery of the charger is faulty or the charging cable 3 is damaged. This facilitates timely removal from the charger, further improving safety and ease of use. The device as a whole has the advantages of wire harness protection, good protection effect, and high safety.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A portable charger, comprising a charger body (1) and a cover plate (12), characterized in that, The charger body (1) has a receiving groove (2) on its surface shell. A cover plate (12) is rotatably connected to one side of the receiving groove (2). A right side plate (13) is installed at the bottom of one side of the cover plate (12). A magnetic suction groove (10) is provided at one end of the bottom of the cover plate (12). A magnetic strip (5) is installed at one end of the receiving groove (2) corresponding to the magnetic suction groove (10). A warning groove (7) is provided on one side of the receiving groove (2) at the top of the charger body (1) shell. Several sets of temperature-sensitive color-changing stickers (8) are evenly arranged inside the warning groove (7). A shielding plate (9) is installed at the top of the warning groove (7).

2. A portable charger according to claim 1, characterized in that, The shielding sheet (9) is made of transparent acrylic sheet.

3. A portable charger according to claim 1, characterized in that, The receiving slot (2) has several sets of slots (4) evenly distributed inside, and a charging cable (3) is attached to the inside of the slot (4).

4. A portable charger according to claim 1, characterized in that, The charger body (1) has several sets of sockets (6) on one side.

5. A portable charger according to claim 1, characterized in that, The top of the cover plate (12) is provided with a gripping groove (11).

6. A portable charger according to claim 1, characterized in that, Magnets are embedded in the surface of the magnetic strip (5) and inside the magnetic groove (10).

7. A portable charger according to claim 1, characterized in that, The charger body (1) has a charging component inside.

8. A portable charger according to claim 1, characterized in that, The charger body (1) has a heat dissipation hole on one side of the bottom, and a dustproof mesh is attached to the surface of the heat dissipation hole.

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