Gallium nitride charger capable of automatically adjusting power

Abstract

The utility model relates to the technical field of charging equipment, in particular to a gallium nitride charger capable of automatically adjusting power. A gallium nitride charger capable of automatically adjusting power comprises a charger body with pins, the charger body comprises an upper shell and a lower shell which are connected through a fixing mechanism, an integrated circuit board is arranged in the charger body, and a fuse, a capacitor, a filter, a transformer and a thermistor are arranged on the integrated circuit board. According to the utility model, the thermistor is arranged on the integrated circuit board, so that the ambient temperature in the charger body can be monitored, the resistance value of the thermistor can be automatically adjusted, and when the temperature is too high, the output power and the temperature of the charger are reduced, thereby protecting the charger; and when the temperature is not high, the output power is increased to carry out high-efficiency charging work until the temperature is too high again, and the charging work is carried out on the premise of protecting the charger by repeating the steps.

Description

Technical Field

[0001] The utility model relates to the technical field of charging devices, and particularly relates to a gallium nitride charger with automatic power adjustment. Background Art

[0002] A charger is a device that converts alternating current into low-voltage direct current. Chargers are widely used in various fields, especially in the daily life field, and are widely used for common electrical appliances such as mobile phones and cameras. A charger is a static current conversion device that uses power electronic semiconductor devices to convert alternating current with a fixed voltage and frequency into direct current.

[0003] Compared with traditional chargers, gallium nitride chargers have a large charging power, a fast charging speed, can meet the scenario requirements of charging multiple devices simultaneously, and are relatively inexpensive. However, due to the large charging power, a large amount of heat will be generated in the product over a long time, which will cause the built-in chip of the gallium nitride charger to detect too high a temperature, and ultimately cause the charger to stop working. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a gallium nitride charger with automatic power adjustment to solve the problem that the gallium nitride charger stops working due to too high a temperature.

[0005] To solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A gallium nitride charger with automatic power adjustment includes a charger body with pins. The charger body includes an upper shell and a lower shell connected by a fixing mechanism. An integrated circuit board is arranged inside the charger body, and a fuse, a capacitor, a filter, a transformer, and a thermistor are arranged on the integrated circuit board.

[0007] Further technical solution is that the fixing mechanism includes a limiting rod. Installation grooves are arranged at both ends of the top of the lower shell. A connecting plate is fitted in the installation grooves. The top of the connecting plate is fixedly connected to the upper shell. A limiting hole is arranged on the side surface of the connecting plate, and a fixing hole is arranged on the wall of the installation groove. One end of the limiting rod is fitted with the limiting hole, and the other end is inserted into the fixing hole. The limiting rod is connected to the bottom of the fixing hole through a spring. An activity groove is arranged on the outer wall of the lower shell, and an activity block is arranged in the activity groove. A strip-shaped groove communicating with the fixing hole is arranged at the bottom of the activity groove. The activity block is fixedly connected to the limiting rod through a connecting block.

[0008] A further technical solution is that anti-slip patterns are arranged on the activity block.

[0009] A further technical solution is that there are two groups of fixing mechanisms, and the two groups of fixing mechanisms are symmetrically arranged on both sides of the lower shell.

[0010] A further technical solution is to provide a U-shaped plate on the charger body, wherein the U-shaped plate cooperates with the end of the charger body, and the two ends of the U-shaped plate are fixedly connected to the movable blocks in the two fixing mechanisms respectively.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The utility model can monitor the ambient temperature inside the charger body by setting a thermistor on the integrated circuit board and automatically adjust the resistance value of the thermistor. When the temperature is too high, the output power of the charger is reduced and the temperature drops, thereby protecting the charger. When the temperature is not high, the output power is increased to perform high-efficiency charging. Until the temperature is too high again, this cycle is repeated, and charging is performed under the premise of protecting the charger. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional diagram of the utility model;

[0014] Figure 2 It is a cross-sectional view of the utility model;

[0015] Figure 3 It is a top sectional view of the present invention.

[0016] Icon: 1-lower housing, 2-upper housing, 3-pin, 4-integrated circuit board, 5-fuse, 6-capacitor, 7-filter, 8-transformer, 9-thermistor, 10-mounting slot, 11-connecting plate, 12-limiting hole, 13-fixing hole, 14-limiting rod, 15-spring, 16-movable slot, 17-movable block, 18-bar slot, 19-connecting block, 20-U-shaped plate. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0018] Figures 1 to 3 This is an embodiment of the present utility model.

[0019] Example 1

[0020] A gallium nitride charger with automatic power adjustment includes a charger body with pins 3. The charger body includes an upper shell 2 and a lower shell 1 connected by a fixing mechanism. An integrated circuit board 4 is provided inside the charger body. A fuse 5, a capacitor 6, a filter 7, a transformer 8, and a thermistor 9 are arranged on the integrated circuit board 4. By means of the thermistor 9 arranged on the integrated circuit board 4, the ambient temperature inside the charger body can be monitored, the resistance value of the thermistor 9 can be automatically adjusted. When the temperature is too high, the output power of the charger is reduced, and when the temperature drops, the charger is protected. When the temperature is not high, the output power is increased to carry out high-efficiency charging work until the temperature is too high again, and so on in a cycle to carry out the charging work on the premise of protecting the charger.

[0021] Embodiment 2

[0022] On the basis of Embodiment 1, the fixing mechanism includes a limiting rod 14. Installation grooves 10 are provided at both ends of the top of the lower shell 1. A connecting plate 11 is fitted in the installation grooves 10. The top of the connecting plate 11 is fixedly connected to the upper shell 2. A limiting hole 12 is provided on the side surface of the connecting plate 11. A fixing hole 13 is provided on the groove wall of the installation groove 10. One end of the limiting rod 14 is fitted with the limiting hole 12, and the other end is inserted into the fixing hole 13. The limiting rod 14 is connected to the bottom of the fixing hole 13 through a spring 15. An activity groove 16 is provided on the outer wall of the lower shell 1. An activity block 17 is provided in the activity groove 16. A strip-shaped groove 18 communicating with the fixing hole 13 is provided at the bottom of the activity groove 16. The activity block 17 is fixedly connected to the limiting rod 14 through a connecting block 19. The limiting rod 14 in the lower shell 1 and the connecting plate 11 in the upper shell 2 are in limiting cooperation, which can make the upper shell 2 and the lower shell 1 stably connected. When it is necessary to open the charger body to maintain the internal electronic devices, the disassembly and reassembly operations are very convenient.

[0023] Embodiment 3

[0024] On the basis of Embodiment 2, anti-slip patterns are provided on the activity block 17. The anti-slip patterns are used to increase the friction of the activity block 17 so as to apply force to the activity block 17 to make it move.

[0025] Embodiment 4

[0026] On the basis of Embodiment 2, there are two groups of fixing mechanisms, and the two groups of fixing mechanisms are symmetrically arranged on both sides of the lower shell 1. The two groups of fixing mechanisms can increase the connection stability between the upper shell 2 and the lower shell 1.

[0027] Embodiment 5

[0028] On the basis of Embodiment 4, a U-shaped plate 20 is provided on the charger body. The U-shaped plate 20 cooperates with the end of the charger body, and both ends of the U-shaped plate 20 are fixedly connected to the movable blocks 17 in the two fixing mechanisms respectively. The U-shaped plate 20 can control the movement of the movable blocks 17 in the two fixing mechanisms simultaneously, making the operation more convenient.

[0029] Working principle: During use, the thermistor 9 provided on the integrated circuit board 4 can monitor the ambient temperature inside the charger body and automatically adjust the resistance value of the thermistor 9. When the temperature is too high, the output power of the charger is reduced, and when the temperature drops, the charger is protected. When the temperature is not high, the output power is increased to perform high-efficiency charging until the temperature becomes too high again, and this cycle repeats to carry out the charging work while protecting the charger. Since the outer shell of the charger is usually made of plastic, when maintaining the electronic devices inside the charger, disassembling and reassembling the charger body can easily cause the plastic outer shell to break. However, through the cooperation of the connecting plate and the limiting rod in the fixing mechanism, the upper shell and the lower shell can be stably connected. After applying force to move the movable block, the limiting rod can move synchronously, so that the limiting rod is disengaged from the limiting hole on the connecting plate, and then the upper shell and the lower shell can be disassembled. The entire disassembly and reassembly operations are very convenient and will not easily cause any damage to the outer shell of the charger, enabling the charger to be used for a long time.

[0030] Although the present invention has been described herein with reference to multiple illustrative embodiments of the present invention, it should be understood that those skilled in the art can design many other modifications and embodiments that will fall within the scope of the principles and spirit disclosed in this application. More specifically, within the scope of the appended drawings and claims of this application, various variations and improvements can be made to the components and / or layout of the subject combination layout. In addition to the variations and improvements made to the components and / or layout, other uses will also be apparent to those skilled in the art.

Claims

1. A gallium nitride charger with automatic power adjustment, characterized in that: It includes a charger body with pins (3), the charger body includes an upper housing (2) and a lower housing (1) connected by a fixing mechanism, an integrated circuit board (4) is provided inside the charger body, and a fuse (5), a capacitor (6), a filter (7), a transformer (8) and a thermistor (9) are arranged on the integrated circuit board (4).

2. The gallium nitride charger with automatically adjustable power according to claim 1, wherein: The fixing mechanism includes a limiting rod (14). Installation grooves (10) are provided at both ends of the top of the lower housing (1). A connecting plate (11) is fitted in the installation grooves (10). The top of the connecting plate (11) is fixedly connected to the upper housing (2). A limiting hole (12) is provided on the side surface of the connecting plate (11). A fixing hole (13) is provided on the groove wall of the installation groove (10). One end of the limiting rod (14) is fitted with the limiting hole (12), and the other end is inserted into the fixing hole (13). The limiting rod (14) is connected to the bottom of the fixing hole (13) through a spring (15). An activity groove (16) is provided on the outer wall of the lower housing (1). An activity block (17) is provided in the activity groove (16). A strip-shaped groove (18) communicating with the fixing hole (13) is provided at the bottom of the activity groove (16). The activity block (17) is fixedly connected to the limiting rod (14) through a connecting block (19).

3. The gallium nitride charger with automatically adjustable power according to claim 2, wherein: Anti-slip patterns are provided on the activity block (17).

4. The gallium nitride charger with automatically adjustable power according to claim 2, wherein: There are two groups of the fixing mechanisms, and the two groups of fixing mechanisms are symmetrically arranged on both sides of the lower housing (1).

5. The gallium nitride charger with automatically adjustable power according to claim 4, wherein: A U-shaped plate (20) is provided on the charger body. The U-shaped plate (20) is fitted with the end of the charger body. The two ends of the U-shaped plate (20) are respectively fixedly connected to the activity blocks (17) in the two fixing mechanisms.

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