Rapid plug-in structure of back cover plate and desktop charger

Abstract

The utility model discloses a back cover plate quick plug -pull structure and desktop charger relates to charger technical field, including charger body, the one side of charger body is provided with the casing back plate, the one end fixed of casing back plate is equipped with the pull plate, and the bottom of pull plate is equipped with the second limit slot, and the casing back plate of far away pull plate one end is equipped with the first limit slot, and the middle part of casing back plate is equipped with the symmetrical second limit link, and the casing back plate is fixedly equipped with the limit ball, the utility model discloses the plug can make the plug smoothly insert the inside of hole, then through the push pull plate, and the casing back plate and charger body realize sliding connection, and the casing back plate and charger body have realized quick plug -pull connection, and the plug is effectively protected by casing back plate, avoids the damage caused by external impact or friction, effectively reduces the abrasion of plug in the process of frequent plug -pull, prolongs the service life of charger.

Description

Technical Field

[0001] This utility model relates to the field of charger technology, specifically to a quick-plug structure for a back cover and a desktop charger. Background Technology

[0002] With the rapid development of technology, the popularity of portable electronic devices is increasing, and they have almost permeated every aspect of people's daily lives. Whether it is a smartphone, tablet, laptop or other portable electronic device, they all need a charger to provide them with power. However, in daily use, the plug and connection structure of the charger face severe challenges, especially during transportation and carrying. The plug is easily subjected to impact and friction from the external environment, which can cause the plug to deform or be damaged, thereby affecting the reliability and durability of the charger.

[0003] During transportation, chargers are usually packed into backpacks or suitcases along with other devices or items. Due to limited space, the plug often collides or rubs with other items, causing the metal contacts on the plug surface to deform or even break. This damage not only affects the normal use of the charger but may also threaten the safety of the device. For example, if the metal contacts of the plug are bent or broken, it may lead to poor contact between the plug and the socket, which may cause problems such as unstable current, overheating of the device, or even short circuits, posing certain safety hazards.

[0004] Patent CN212323260U discloses a charger plug and charger. The plug body has a receiving groove with a bottom surface. A first end of a pin is rotatably connected to the plug body. The pin has a first sidewall and a second sidewall, the first sidewall being shorter than the second sidewall. The second end of the pin has an inclined surface extending from the first sidewall to the second sidewall. The pin can switch between an open state and a closed state. In the closed state, the pin is located in the receiving groove, with the second sidewall facing the bottom surface. In the open state, the pin is unscrewed from the receiving groove, with the second end of the pin protruding from the groove. Upon drop, the pin can close back into the receiving groove, preventing damage to the plug when the charger is dropped.

[0005] However, the charger plug in this patent has the following drawbacks: when the charger plug is dropped, the plug closes into the receiving groove, but a part of the plug is still exposed on the outside. When the charger is transported, the plug collides or rubs with other items, causing the metal pieces on the surface of the plug to deform or even break, thereby affecting the stability and reliability of the charger. Utility Model Content

[0006] To address the technical problem in existing technologies where the plug of a charger often collides or rubs with other items during transportation, leading to plug damage, this utility model provides a quick-plug structure for the back cover and a desktop charger.

[0007] The objective of this utility model can be achieved through the following technical solutions:

[0008] The quick-release back cover structure includes a charger body. A housing back plate is provided on one side of the charger body. A pull plate is provided at one end of the housing back plate. A second limiting groove is provided at the bottom of the pull plate. A first limiting groove is provided on the housing back plate. A second limiting rod is provided in the middle of the housing back plate. A limiting ball is fixedly provided on the housing back plate. A hole is provided at the bottom of the charger body. The hole is connected to a fourth limiting groove. A baffle is provided between the fourth limiting grooves. A third limiting groove is provided on the baffle. A third limiting rod is fixedly provided on the charger body. A first limiting rod is provided at the bottom of the charger body.

[0009] Furthermore, the second limiting rod is matched with the fourth limiting groove, the limiting ball is matched with the third limiting groove, the first limiting groove is matched with the third limiting rod, and the second limiting groove is matched with the first limiting rod.

[0010] Furthermore, the pull plate protrudes outward, and the second and third limiting rods are L-shaped.

[0011] Furthermore, one end of the second limiting rod is fixedly connected to the upper part of the back plate of the housing, and the opening direction of the other end of the second limiting rod is opposite.

[0012] Furthermore, the limiting ball is located in the middle of the second limiting rod, and the limiting ball is semi-circular in shape.

[0013] Furthermore, one end of the third limiting rod is fixed to the bottom of the charger body, and the other end of the third limiting rod is suspended above the charger body.

[0014] Furthermore, the bottom side of the charger body is provided with multiple first heat dissipation holes, and the back plate of the housing is provided with second heat dissipation holes.

[0015] This utility model also provides a desktop charger, including a charger body and a housing back plate disposed on one side of the charger body. The charger body and the housing back plate are installed and disassembled through a quick-release back cover structure.

[0016] Furthermore, the charger body has a slot inside near the third limiting rod end, and the slot is connected to an external power source through a dedicated connecting cable to realize the input of external current.

[0017] The beneficial effects of this utility model are:

[0018] This invention achieves a sliding connection between the back panel of the housing and the charger body by pushing the pull plate, further enhancing the stability of the connection. The back panel of the housing and the charger body achieve a quick plug-in connection. The slot is effectively protected by the back panel of the housing, preventing scratches on one side of the charger body in the bag during transportation or short circuits caused by metal objects (such as keys, hairpins, etc.) falling into the slot, thus further extending the service life of the charger.

[0019] This invention provides heat dissipation for the charger by opening a first heat dissipation hole on the outer side of the outer casing and a second heat dissipation hole on the charger body and the back plate of the casing, thereby increasing the charger's service life. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the shell back plate of this utility model;

[0022] Figure 3 This is a schematic diagram of the charger body of this utility model.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Charger body; 101. First heat dissipation hole; 102. First limiting rod; 2. Housing back plate; 201. First limiting groove; 202. Limiting ball; 203. Second limiting rod; 204. Second heat dissipation hole; 205. Pull plate; 206. Second limiting groove; 3. Hole; 301. Third limiting groove; 302. Fourth limiting groove; 303. Third limiting rod; 304. Baffle; 4. Slot. Detailed Implementation

[0025] 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.

[0026] Please see Figure 1-2 As shown, the quick-plug structure of the back cover includes a charger body 1 and a housing back plate 2 installed at the bottom of the charger body 1; the charger body 1 is located at the bottom of the charger housing.

[0027] The charger body 1 has a 12V-24V DC input to ensure product safety, and dual output ports of TYPE-C and USB-A, which are compatible with mainstream charging protocols. During the charging process, the charger body 1 has an indicator light that changes from green to blue to white, and the semi-transparent shell diffuses the light to create an ambient lighting effect.

[0028] Specifically, the MCU in the charger body 1 controls the digital tube to display the real-time total charging power;

[0029] The bottom side of the charger body 1 is provided with multiple first heat dissipation holes 101, which dissipate heat during use and increase the lifespan of the charger.

[0030] The shell back plate 2 consists of a rectangular base plate and an L-shaped pull plate, with the L-shaped pull plate protruding outwards.

[0031] A pull plate 205 is fixedly provided at one end of the back plate 2 of the housing, so as to facilitate pulling the back plate 2 of the housing from the bottom of the charger body 1; a second limiting groove 206 is provided at the bottom of the pull plate 205.

[0032] A first limiting groove 201 is provided on the back plate 2 of the housing away from the pull plate 205, and a symmetrical second limiting rod 203 is provided in the middle of the back plate 2 of the housing. The second limiting rod 203 is L-shaped.

[0033] One end of the symmetrical second limiting rod 203 is fixedly connected to the upper part of the back plate 2 of the housing, and the opening direction of the other end of the second limiting rod 203 is opposite; a limiting ball 202 is fixedly provided on the back plate 2 of the housing, the limiting ball 202 is located in the middle of the second limiting rod 203, and the limiting ball 202 is semi-circular in shape; a second heat dissipation hole 204 is provided on the back plate 2 of the housing, which facilitates the dissipation of heat from the bottom of the charger.

[0034] Please refer to it again. Figure 3 As shown, the bottom end of the charger body 1 is provided with a first limiting rod 102 that matches the second limiting groove 206. The first limiting rod 102 matches the second limiting groove 206, so that the charger body 1 and the shell back plate 2 fit more tightly and firmly.

[0035] A third limiting rod 303 is fixedly provided on the charger body 1 at the end away from the first limiting rod 102. The third limiting rod 303 is L-shaped. One end of the third limiting rod 303 is fixed to the bottom of the charger body 1, and the other end of the third limiting rod 303 is suspended above the charger body 1.

[0036] A hole 3 is provided at the bottom of the charger body 1 corresponding to the position of the second heat dissipation hole 204. The hole 3 is rectangular in shape, and a fourth limiting groove 302 is connected to one end of the hole 3. The fourth limiting groove 302 is configured to cooperate with the second limiting rod 203, and the length of the fourth limiting groove 302 is greater than the length of the second limiting rod 203.

[0037] A baffle 304 is provided between the fourth limiting grooves 302, and a third limiting groove 301 is provided on the baffle 304. The third limiting groove 301 is located between the fourth limiting grooves 302, and the third limiting groove 301 is configured to cooperate with the limiting ball 202.

[0038] The back panel 2 of the housing is slidably connected to the charger body 1 by the pull plate 205. The second limiting rod 203 on the back panel 2 passes through the hole 3 and then through the fourth limiting groove 302. The back panel 2 tilts the baffle 304 upward until the limiting ball 202 on the back panel 2 engages with the third limiting groove 301. The third limiting rod 303 and the second limiting groove 206 engage, and the back panel 2 and the charger body 1 achieve a quick plug-in connection. During transportation, it is to prevent scratches on one side of the charger body in the bag or to prevent plugging in metal objects (such as keys, hairpins, etc.) that fall into the slot 4 and cause a short circuit between the positive and negative terminals of the charger body.

[0039] Operating mode: By pushing the pull plate 205, the back plate 2 of the housing and the charger body 1 achieve a sliding connection, further enhancing the stability of the connection. During this process, the second limiting rod 203 on the back plate 2 of the housing precisely passes through the hole 3 and slides along the fourth limiting groove 302, ensuring smooth movement of the back plate. At the same time, the back plate 2 of the housing contacts the baffle 304, causing the baffle 304 to tilt upward, forming a stable support structure, further improving the overall connection strength. When the limiting ball 202 on the back plate 2 of the housing engages with the third limiting groove 301, and the third limiting rod 303 engages with the second limiting groove 206, the back plate 2 of the housing and the charger body 1 achieve a quick plug-in connection. During transportation, the slot 4 is effectively protected by the back plate 2 of the housing, preventing scratches on one side of the charger body from being caused by the bag or metal objects (such as keys, hairpins, etc.) falling into the slot 4 and causing a short circuit between the positive and negative terminals of the charger body.

[0040] Please see Figure 3 As shown, the desktop charger includes a charger body 1, a housing back plate 2, and a slot 4 installed inside the charger body 1. The charger body 1 also contains chips and other components. The charger body 1 is also equipped with indicator lights, which are used to display the working status of the charger, such as charging, fully charged, or faulty.

[0041] Slot 4 is located inside the charger body 1 near the end of the third limit rod 303; slot 4 requires a dedicated access cable for current charging; the input voltage is 24V, which will not cause harm to the human body.

[0042] This desktop charger, by incorporating existing technologies, offers the following advantages in circuit layout and use:

[0043] 1. Supports multiple fast charging protocols, such as UFCS, PD, QC, AFC, FCP, etc., and develops new fast charging protocols or optimizes and improves existing protocols, such as increasing charging speed, reducing charging temperature, and enhancing protocol stability and compatibility. For example, the 100W dual-port car charger from Xiaomi's ecosystem company, Kootech, supports the UFCS protocol and can provide fast and stable charging for devices from different brands.

[0044] 2. Power Allocation: Intelligent power allocation allows the charger to automatically identify the fast charging protocols supported by connected devices and adaptively switch to the optimal charging mode, enabling efficient charging for various brands and types of devices. For example, the SW3566 chip from Zhirong Technology integrates multiple fast charging protocol detection circuits to meet the fast charging needs of different devices.

[0045] 3. Improved charging efficiency: Employing new circuit topologies, power devices, or control algorithms improves the charger's power conversion efficiency, reduces energy loss, and enhances the overall performance of the charger. For example, using novel power devices such as gallium nitride (GaN) allows the charger to achieve higher power output in a smaller size.

[0046] 4. Multiple Protection Functions: The design incorporates more sensitive and reliable overvoltage, overcurrent, and short-circuit protection circuits, capable of instantly detecting abnormal conditions and cutting off power to protect the charging equipment and user safety. For example, it employs fuses with self-resetting functions or intelligent protection chips to improve the reliability and stability of the protection mechanism.

[0047] 5. Intelligent Detection and Protection: It can intelligently detect the status of connected devices, such as device type, battery level, and temperature, and take corresponding protective measures based on the detection results. This achieves more precise and intelligent dual-port power allocation, dynamically adjusting the output power of the two ports according to the charging needs and priorities of the connected devices to avoid power waste and slow charging. For example, the new generation dynamic power allocation technology of the GuShi 35W GaN dual-port charger can automatically adjust between different power allocation strategies.

[0048] 6. Unique Design: It features a novel and unique appearance, such as a compact and portable design, a stylish shape, and personalized color combinations.

[0049] 7. Materials and Craftsmanship: Special materials or surface treatment processes are used to enhance the texture, feel and durability of the charger, such as fire-retardant, environmentally friendly and wear-resistant materials, or special frosted, high-gloss and textured processing processes.

[0050] 8. Structural Innovation: The charger has a reasonable internal structure design that facilitates assembly, maintenance, and heat dissipation. Alternatively, it may adopt innovative structures such as foldable, rotatable, or modular designs to improve the product's practicality and convenience.

[0051] 9. Interface Types and Layout: Equipped with multiple types of interfaces, such as USB-A, USB-C, and Lightning, to meet the charging needs of different devices. The interface layout is also reasonable, making it convenient for users to connect multiple devices at the same time.

[0052] 10. Indicator light design: Set clear and intuitive indicator lights to show the working status of the charger, such as charging, fully charged, fault, etc. The position, color and display method of the indicator lights can be customized.

[0053] 11. Environmental protection and energy saving: The charger has low power consumption characteristics in standby mode, which meets environmental protection and energy saving standards and can realize low power consumption circuit design or control.

[0054] 12. Compatibility Optimization: Through software or hardware design, better compatibility with various devices, including mobile phones, tablets, and laptops of different brands and operating systems, reducing compatibility issues.

[0055] 13. Intelligent Identification and Automatic Switching: The charger can intelligently identify different types of devices, such as mobile phones, tablets, and headphones, and automatically adjust charging parameters to provide the most suitable charging method for the device. It can also automatically activate the charging function of a port when a device is plugged in and automatically deactivate the port when the device is unplugged to save energy.

[0056] 14. Foldable or Retractable Design: The charger features a foldable or retractable plug, interface, or housing structure, allowing for convenient storage when not in use, reducing space occupation and improving portability. For example, a foldable plug design can prevent damage to the plug during transport, while also being more aesthetically pleasing and practical.

[0057] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0058] 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.

Claims

1. A quick-plug structure for the back cover, comprising a charger body (1), characterized in that, The charger body (1) has a housing back plate (2) on one side. One end of the shell back plate (2) is provided with a pull plate (205), the bottom of the pull plate (205) is provided with a second limiting groove (206), the shell back plate (2) is provided with a first limiting groove (201), the middle part of the shell back plate (2) is provided with a second limiting rod (203), and a limiting ball (202) is fixedly provided on the shell back plate (2). The charger body (1) has a hole (3) at the bottom, the hole (3) is connected to a fourth limiting groove (302), a baffle (304) is provided between the fourth limiting grooves (302), a third limiting groove (301) is provided on the baffle (304), a third limiting rod (303) is fixedly provided on the charger body (1), and a first limiting rod (102) is provided at the bottom of the charger body (1).

2. The quick-release structure for the back cover plate according to claim 1, characterized in that, The second limiting rod (203) is matched with the fourth limiting groove (302), the limiting ball (202) is matched with the third limiting groove (301), the first limiting groove (201) is matched with the third limiting rod (303), and the second limiting groove (206) is matched with the first limiting rod (102).

3. The quick-release structure for the back cover plate according to claim 1, characterized in that, The pull plate (205) protrudes outward, and the second limiting rod (203) and the third limiting rod (303) are L-shaped.

4. The quick-release structure for the back cover plate according to claim 3, characterized in that, One end of the second limiting rod (203) is fixedly connected to the upper part of the back plate (2) of the housing, and the opening direction of the other end of the second limiting rod (203) is opposite.

5. The quick-release structure for the back cover plate according to claim 1, characterized in that, The limiting ball (202) is located in the middle of the second limiting rod (203), and the limiting ball (202) is semi-circular in shape.

6. The quick-release structure for the back cover plate according to claim 3, characterized in that, One end of the third limiting rod (303) is fixed to the bottom of the charger body (1), and the other end of the third limiting rod (303) is suspended above the charger body (1).

7. The quick-release structure for the back cover plate according to claim 1, characterized in that, The charger body (1) has multiple first heat dissipation holes (101) on its bottom side, and the back plate (2) of the housing has a second heat dissipation hole (204).

8. A desktop charger, comprising a charger body (1) and a housing back plate (2) disposed on one side of the charger body (1), characterized in that, The charger body (1) and the housing back plate (2) are installed and disassembled by the quick-plug structure of the back cover as described in any one of claims 1-7.

9. The desktop charger according to claim 8, characterized in that, The charger body (1) has a slot (4) inside the end near the third limiting rod (303). The slot (4) is connected to an external power source through a dedicated connecting line to realize the input of external current.

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