Direct-connection charger with lightning surge

Abstract

Provide the charger with a lightning surge function to reduce electrical damage. 【Solution means】The charger of the present invention incorporates protection components such as capacitors and varistors 7 that absorb lightning surges inside, preventing the inflow of excessive current and voltage when lightning strikes or voltage spikes occur, avoiding damage to the connected electronic devices, and automatically cutting off the current when excessive voltage is detected to prevent damage to the electronic devices.

Description

Technical Field

[0001] This invention relates to a charger for supplying power to electronic devices and portable devices, and particularly to a technology for a charger for protecting electronic devices from electrical damage caused by lightning surges.

Background Art

[0002] In recent years, electronic devices such as smartphones, tablets, and personal computers have been used daily, and the power infrastructure has also become diversified and complex. However, these electronic devices are vulnerable to power instability caused by power outages and lightning, and in particular, damage caused by lightning surges (temporary voltage spikes generated by lightning strikes or power fluctuations) has been regarded as a problem. Although conventional chargers have an overcurrent protection function, there is no special countermeasure against lightning surges, and there are still cases where electronic devices are damaged.

Summary of the Invention

Problems to be Solved by the Invention

[0003] Electronic devices may be damaged by sudden lightning surges, causing significant losses to users. Therefore, a highly safe charging environment is required, and it is an issue to reduce electrical damage caused by lightning surges. The purpose of this invention is to provide a charger with a sufficient protection function against lightning surges.

Means for Solving the Problems

[0004] In this invention, protection components such as capacitors and varistors for absorbing lightning surges are built into the charger. This circuit prevents excessive current and voltage from flowing when a lightning strike or voltage spike occurs, and prevents damage to the connected electronic device. Furthermore, it has a protection function that automatically cuts off the current when excessive voltage is detected.

Effects of the Invention

[0005] Protection against lightning surges reduces damage to equipment, extends the service life of electronic devices, and improves safety by reducing the risk of fire and equipment failure. When sudden current and voltage fluctuations occur, the protection circuit of the charger absorbs them. Additionally, preventing equipment failure due to lightning surges is expected to reduce repair and replacement costs.

Brief Description of the Drawings

Figure 1

Figure 2

Embodiments for Carrying Out the Invention

[0006] The direct-connection charger with lightning surge according to the present invention is a charger equipped with a plug that can be directly connected to an electrical outlet and a charging port for supplying power to the connected device. This charger incorporates a varistor and a fuse to protect the connected device from overvoltage caused by lightning surges. The varistor becomes in a low-resistance state when an abnormal voltage is applied and suppresses the surge voltage by discharging the current. Also, when an overcurrent occurs, the fuse blows to prevent failure of the charger body and the connected device as well as fire. Furthermore, an LED is provided to visually confirm the degradation and operating state of the varistor and fuse, enabling the user to check the status of the protection function.

Description of the Reference Numerals

[0007] 1 Main body case 2 Metal terminal 3 Terminal fixing plate 4 Various cables such as Type-C 5 Single wire + lightning-resistant PCBA 6 Metal contact spring plate 7 Varistor 8 LED light 9 Fuse 10 Lighting hole case cover 11 Lighting cover

Claims

[Claim 1] This direct-connect charger with lightning surge protection is characterized by its built-in protective components, such as capacitors and varistors, that absorb lightning surges, preventing excessive current or voltage from flowing in the event of a lightning strike or voltage spike, preventing damage to connected electronic devices, and also by its protective function of automatically cutting off the current when excessive voltage is detected.

Images