USB charger

By designing a dustproof mechanism and plug storage function on the USB charger, the problem of output port contamination is solved, and charging safety and portability are improved.

CN223898994UActive Publication Date: 2026-02-10TIANCHANG DONGYU ELECTRONICS CO LTD
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Patent Information

Application Number
CN202520011549.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-03
Publication Date
2026-02-10
Estimated Expiration
2035-01-03

AI Technical Summary

Technical Problem

The output ports of existing USB chargers are prone to accumulating dust and dirt, leading to poor contact or short circuits, which affects charging efficiency and safety.

Method used

A USB charger with a dustproof mechanism was designed. The dustproof plate can be rotated and opened and closed by the cooperation of the locking block and the locking hook to protect the output port. The plug mechanism can be stored in the storage slot by the cooperation of the metal plate and the spring contact terminal, reducing the size of the device.

Benefits of technology

It effectively prevents contaminants from entering the output port, ensuring charging safety, and at the same time, it can reduce the size of the device when not charging, making it easy to carry.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a USB charger, and particularly relates to the technical field of chargers, the USB charger comprises a charger main body, the top of the charger main body is fixedly provided with a dustproof mechanism, the bottom of the charger main body is fixedly provided with a plug mechanism, and the dustproof mechanism comprises a first installation block and a dustproof plate. The first mounting block is fixedly mounted at the top of the charger main body, the dustproof plate is rotatably mounted at the top of the charger main body, and a clamping hook is fixedly mounted at the bottom of the dustproof plate. According to the USB charger, the dustproof plate is fixed to the top of the first mounting block through cooperation of the clamping block and the clamping hook, so that the output port in the top of the charger main body is protected through the dustproof plate, and pollutants are prevented from entering the output port; the dustproof plate can be opened only by pressing the unlocking button to enable the clamping block to overcome the elastic force of the spring to move towards the interior of the first mounting block, so that the clamping block and the clamping hook are separated from the locking relation, and the output port is exposed.
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Description

Technical Field

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

[0002] The charger technology field focuses on developing and optimizing devices that convert alternating current (AC) to direct current (DC) for the safe and efficient charging of portable electronic devices such as smartphones, tablets, and other battery-powered products. This field continuously strives for higher conversion efficiency, faster charging speeds, wider compatibility, and enhanced safety features, while also exploring emerging technologies such as wireless charging.

[0003] A USB charger is a power adapter designed specifically for portable electronic devices. It converts alternating current (AC) to direct current (DC) via a USB interface to safely and efficiently charge devices such as smartphones and tablets. Modern USB chargers not only support various fast charging protocols, such as USB Power Delivery (PD), providing faster charging speeds and broad compatibility, but also incorporate intelligent chips to automatically adjust output voltage and current, ensuring optimal charging efficiency while protecting the safety of connected devices.

[0004] In existing technologies, the output ports of USB chargers are usually exposed. While this meets the usage requirements to some extent, it has been found in actual use that exposed USB ports are prone to accumulating dust, dirt, and even liquids. These contaminants may cause poor contact or short circuits, affecting charging efficiency and safety. Utility Model Content

[0005] The purpose of this invention is to provide a USB charger to solve the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a USB charger, comprising a charger body, a dustproof mechanism fixedly installed on the top of the charger body, and a plug mechanism fixedly installed on the bottom of the charger body. The dustproof mechanism includes a first mounting block and a dustproof plate. The first mounting block is fixedly installed on the top of the charger body, and the dustproof plate is rotatably installed on the top of the charger body. A hook is fixedly installed on the bottom of the dustproof plate. A cover plate is movably installed on one side of the first mounting block. A locking block is slidably installed inside the first mounting block. A release button is fixedly installed on the bottom of the locking block. The release button is slidably installed inside the cover plate. A spring is fixedly installed on the side of the release button near the first mounting block, and the spring is disposed inside the first mounting block.

[0007] Preferably, thumb slots are provided on both the left and right sides of the charger body.

[0008] Preferably, an indicator light strip is fixedly installed on the top of the charger body.

[0009] Preferably, a folding frame is rotatably mounted on one side of the charger body.

[0010] Preferably, the plug mechanism includes a second mounting block, which is fixedly mounted on the bottom of the charger body. The bottom of the second mounting block has a storage groove. A movable block is rotatably mounted on the bottom of the second mounting block and is rotatably mounted inside the storage groove. Two sets of pins are fixedly mounted on one side of the movable block. Metal plates are fixedly mounted on both the left and right sides of the movable block. The two sets of pins are electrically connected to one side of the two sets of metal plates respectively. Spring contact terminals are fixedly mounted on both the left and right sides of the storage groove and are located on one side of the metal plates.

[0011] Preferably, an operation slot is provided on one side of the storage slot.

[0012] Preferably, a magnetic block is fixedly installed inside the storage slot.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the USB charger;

[0014] 1. By using the locking mechanism and the hook, the dust cover is fixed to the top of the first mounting block, thereby protecting the output port on the top of the charger body and preventing contaminants from entering the output port. When charging is required, simply press the release button to make the locking mechanism overcome the spring force and move inward toward the first mounting block, so that the locking mechanism and the hook are disengaged and the dust cover is opened, exposing the output port.

[0015] 2. Through the cooperation between the set metal plate and spring terminal, the movable block can rotate freely inside the storage slot without affecting the electrical connection between the plug and the charger body. In summary, when not charging, this device can retract the plug into the storage slot, making the overall size of the charger smaller and easier to put in a bag or pocket, making it especially suitable for travel or carrying when going out. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the unfolded state of this utility model;

[0018] Figure 3 This is a structural development diagram of the dustproof mechanism of this utility model;

[0019] Figure 4 This is a bottom view of the plug mechanism of this utility model.

[0020] In the diagram: 1. Charger body; 2. Dustproof mechanism; 201. First mounting block; 202. Dustproof plate; 203. Hook; 204. Cover plate; 205. Locking block; 206. Unlocking button; 207. Spring; 3. Plug mechanism; 301. Second mounting block; 302. Movable block; 303. Plug pin; 304. Metal sheet; 305. Spring contact terminal; 306. Storage slot; 307. Magnetic block; 308. Operation slot; 4. Thumb slot; 5. Indicator light strip; 6. Folding frame. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-3 This utility model provides a technical solution: a USB charger, including a charger body 1, a dustproof mechanism 2 fixedly installed on the top of the charger body 1, and a plug mechanism 3 fixedly installed on the bottom of the charger body 1. The dustproof mechanism 2 includes a first mounting block 201 and a dustproof plate 202. The first mounting block 201 is fixedly installed on the top of the charger body 1, and the dustproof plate 202 is rotatably installed on the top of the charger body 1. A hook 203 is fixedly installed on the bottom of the dustproof plate 202. A cover plate 204 is movably installed on one side of the first mounting block 201. A locking block 205 is slidably installed inside the first mounting block 201. A release button 206 is fixedly installed on the bottom of the locking block 205. The release button 206 is slidably installed inside the cover plate 204. A spring 207 is fixedly installed on the side of the release button 206 near the first mounting block 201. The spring 207 is disposed inside the first mounting block 201.

[0023] Thumb slots 4 are provided on both the left and right sides of the charger body 1. The thumb slots 4 provide a better grip point for people, making it easier for users to insert and remove the charger, especially when the plug is in a narrow space or the socket is low.

[0024] An indicator light strip 5 is fixedly installed on the top of the charger body 1. The indicator light strip 5 allows users to intuitively understand the charging progress, whether it is fully charged, or if there are any abnormalities such as overheating or short circuit.

[0025] A folding bracket 6 is rotatably mounted on one side of the charger body 1. The folding bracket 6 allows users to tilt and place their mobile phones or other tablets on one side of the charger body 1 for easy viewing of the screen content.

[0026] The specific implementation method is as follows: the dustproof plate 202 is fixed on the top of the first mounting block 201 by the cooperation between the locking block 205 and the hook 203. The dustproof plate 202 protects the output port on the top of the charger body 1 and prevents contaminants from entering the output port. When charging is required, simply press the unlocking button 206 to make the locking block 205 overcome the elastic force of the spring 207 and move inward toward the first mounting block 201, so that the locking block 205 and the hook 203 are disengaged and the dustproof plate 202 is opened, exposing the output port.

[0027] Please see Figure 1-4 This utility model provides a technical solution: a USB charger, wherein the plug mechanism 3 includes a second mounting block 301, the second mounting block 301 is fixedly mounted on the bottom of the charger body 1, the bottom of the second mounting block 301 is provided with a storage groove 306, a movable block 302 is rotatably mounted on the bottom of the second mounting block 301, the movable block 302 is rotatably mounted inside the storage groove 306, two sets of pins 303 are fixedly mounted on one side of the movable block 302, and metal plates 304 are fixedly mounted on both the left and right sides of the movable block 302, the two sets of pins 303 are electrically connected to one side of the two sets of metal plates 304 respectively, and spring terminals 305 are fixedly mounted on both the left and right sides of the storage groove 306, the spring terminals 305 are disposed on one side of the metal plates 304;

[0028] An operation slot 308 is provided on one side of the storage slot 306. The movable block 302 can be stably fixed inside the storage slot 306 by means of magnetic block 307 adsorbing the movable block 302.

[0029] A magnetic block 307 is fixedly installed inside the storage slot 306, and the movable block 302 can be easily removed from the inside of the storage slot 306 by the operator through the operating slot 308.

[0030] The specific implementation method is as follows: through the cooperation between the metal sheet 304 and the spring terminal 305, the movable block 302 can rotate freely inside the storage slot 306 without affecting the electrical connection between the plug 303 and the charger body 1. In summary, when not charging, this device can retract the plug into the storage slot 306, making the overall size of the charger smaller and easier to put in a bag or pocket, which is especially suitable for travel or carrying when going out.

[0031] Working principle: When using this USB charger, the dustproof plate 202 is fixed to the top of the first mounting block 201 through the cooperation between the locking block 205 and the hook 203. The dustproof plate 202 protects the output port on the top of the charger body 1 and prevents contaminants from entering the output port. When charging is required, simply press the release button 206 to make the locking block 205 move inward toward the first mounting block 201 against the elastic force of the spring 207, so that the locking block 205 and the hook 203 are disengaged, and the dustproof plate 202 can be opened to expose the output port.

[0032] The thumb slot 4 provides a better grip point for people, making it easier for users to insert and remove the charger, especially when the plug is in a narrow space or the socket is low. The indicator light strip 5 allows users to intuitively understand the charging progress, whether it is fully charged, or whether there are abnormalities such as overheating or short circuit. The folding bracket 6 allows users to tilt and place their mobile phones or other tablet devices on one side of the charger body 1 for easy viewing of the screen content.

[0033] Through the cooperation between the metal sheet 304 and the spring terminal 305, the movable block 302 can rotate freely inside the storage slot 306 without affecting the electrical connection between the plug 303 and the charger body 1. In summary, when not charging, this device can retract the plug into the storage slot 306, making the overall size of the charger smaller and easier to put in a bag or pocket, which is especially suitable for travel or carrying when going out.

[0034] The movable block 302 is stably fixed inside the storage slot 306 by the magnetic block 307 adsorbing the movable block 302, and the movable block 302 can be easily removed from the storage slot 306 by the operation slot 308.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A USB charger, comprising a charger body (1), wherein a dustproof mechanism (2) is fixedly installed on the top of the charger body (1), and a plug mechanism (3) is fixedly installed on the bottom of the charger body (1), characterized in that: The dustproof mechanism (2) includes a first mounting block (201) and a dustproof plate (202). The first mounting block (201) is fixedly mounted on the top of the charger body (1). The dustproof plate (202) is rotatably mounted on the top of the charger body (1). A hook (203) is fixedly mounted on the bottom of the dustproof plate (202). A cover plate (204) is movably mounted on one side of the first mounting block (201). A locking block (205) is slidably mounted inside the first mounting block (201). A release button (206) is fixedly mounted on the bottom of the locking block (205). The release button (206) is slidably mounted inside the cover plate (204). A spring (207) is fixedly mounted on the side of the release button (206) near the first mounting block (201). The spring (207) is located inside the first mounting block (201).

2. A USB charger according to claim 1, characterized in that, Thumb slots (4) are provided on both the left and right sides of the charger body (1).

3. A USB charger according to claim 1, characterized in that, An indicator light strip (5) is fixedly installed on the top of the charger body (1).

4. A USB charger according to claim 1, characterized in that, A folding frame (6) is rotatably mounted on one side of the charger body (1).

5. A USB charger according to claim 1, characterized in that, The plug mechanism (3) includes a second mounting block (301), which is fixedly mounted on the bottom of the charger body (1). A storage groove (306) is provided on the bottom of the second mounting block (301). A movable block (302) is rotatably mounted on the bottom of the second mounting block (301). The movable block (302) is rotatably mounted inside the storage groove (306). Two sets of pins (303) are fixedly mounted on one side of the movable block (302). Metal plates (304) are fixedly mounted on both the left and right sides of the movable block (302). The two sets of pins (303) are electrically connected to one side of the two sets of metal plates (304). Spring terminals (305) are fixedly mounted on both the left and right sides of the storage groove (306). The spring terminals (305) are located on one side of the metal plates (304).

6. A USB charger according to claim 5, characterized in that, An operation slot (308) is provided on one side of the storage slot (306).

7. A USB charger according to claim 5, characterized in that, A magnetic block (307) is fixedly installed inside the storage slot (306).