TWM473639U - Charger - Google Patents

Description

charger

This creation is about a charger, especially a charger for a locomotive or an electric bicycle.

According to the popularization of 3C products, modern people usually carry 3C products when they go out, such as mobile phones, PDAs, MP3s, etc. These 3C products are usually equipped with rechargeable batteries or connectors for charging. In order to facilitate the user to charge the 3C product, if the user can't find the environment of the power socket just outside, the battery or the charging power source is useless, and many people can buy the portable body in order to make up for the charging of the 3C product. The mobile power source that is carried, but the mobile power supply is usually small in size, and is usually not enough to provide a sufficient amount of power.

Then, as created by M355497 and M436992, it provides a charger for locomotives or motorcycles that allows users to charge 3C products using batteries from locomotives or bicycles. However, chargers of this design are usually not considered. The external loss (such as the resistance of the battery itself or the energy loss during transmission) continuously charges the 3C product. If the voltage of the battery is too low, the locomotive cannot be started. Therefore, the structure of the conventional charger is still If you are not ideal, you should be in the direction of the industry.

The purpose of this creation is to provide a charger that can accurately detect the battery. The voltage can avoid the situation that the locomotive or electric bicycle cannot be started after charging.

In order to achieve the above object, the present invention provides a charger that is electrically connected to a battery of a locomotive or an electric bicycle. The charger includes a casing, an electrical terminal, and a control circuit.

The housing has a port. The electrical connector is located in the opening of the housing and is exposed to the housing to be electrically connected to a to-be-charged object. The control circuit is disposed in the housing and electrically connected to the battery and the electrical connection. Wherein the control circuit can obtain the resistance between the battery and the object to be charged and the back pressure of the battery, and the control circuit can selectively conduct the power of the battery to the resistor according to the resistance or/and the back pressure speed. The charge to be charged and charged.

Therefore, the charger provided by the creation can not only effectively prevent the locomotive or the electric bicycle from being unable to be started after the battery voltage is too low after charging, or the voltage of the battery is insufficient after being charged to the object to be charged. A locomotive or an electric bicycle is operated and a flameout occurs.

2‧‧‧Shell

21‧‧‧Upper casing

22‧‧‧ Lower case

211‧‧‧Transmission Department

3‧‧‧Electrical connection

5‧‧‧Control circuit

51‧‧‧Wire

52‧‧‧Substrate

6‧‧‧LED lights

8‧‧‧Battery

9‧‧‧To be charged

91‧‧‧USB plug

Figure 1 is a perspective exploded view of the creation.

Figure 2 is a schematic diagram of the state of use of the present creation.

Figure 3 is a schematic view of the creation of a handle on a motorcycle.

The following is a description of possible implementations of the present invention by way of example only, and is not intended to limit the scope of the creation of the present invention.

Please refer to FIG. 1 and FIG. 2, the present invention provides a charger for connecting to a machine. A battery 8 of a car or an electric bicycle, wherein the charger comprises a casing 2, an electrical terminal 3 and a control circuit 5.

The housing 2 has a through hole. In the embodiment, the housing 2 has an upper housing 21 and a lower housing 22. The upper housing 21 and the lower housing 22 define an accommodation space and the passage. The port is connected to the accommodating space and the outer portion of the casing 2, wherein the upper casing 21 and the lower casing 22 are coupled to each other by means of a buckle, but not limited thereto, for example, in other possible embodiments. The upper and lower casings may also be coupled by a screw-locking method or integrally formed by welding. The housing 2 has a light transmitting portion 211. Preferably, the light transmitting portion 211 is formed on the top of the upper housing 21. In the embodiment, the light transmitting portion 211 is a perforation, which is understandable. In other possible embodiments, the light transmitting portion may also be a light transmissive material.

The electrical terminal 3 is located in the opening of the housing 2 and is exposed to the housing 2 for being electrically connected to a to-be-charged object 9. The position and contour of the opening of the housing 2 corresponds to the electrical connection end. 3, the electrical connector 3 is exposed to the housing 1 . Preferably, the electrical connector 3 can be, but is not limited to, a USB slot, and the to-be-charged device 9 also has a corresponding one. The USB connector 91 is electrically connected to the USB socket and electrically connected to the electrical connector 3. In other possible embodiments, the electrical connector may be another type of electrical connection, such as a socket hole. The object to be charged also has a corresponding pin for being inserted into the socket hole.

The control circuit 5 is disposed in the accommodating space of the housing 2 and electrically connected to the battery 8 and the electrical terminal 3. Preferably, the control circuit 5 is electrically connected to the battery 8 through a wire 51. The control circuit 5 is connected to the electrical terminal 3 on the same substrate 52, and the control circuit 5 is electrically connected to the electrical connector 3. It is understood that the electrical connector may not be connected. There is no problem in providing the substrate and installing it in other positions in the casing. The control circuit 5 can obtain the battery 8 and the object to be charged 9 The resistance between the battery and the back pressure of the battery 8 (herein referred to as the boost of the battery within 8 unit time), the control circuit 5 can selectively select the battery 8 according to the obtained resistance or/and the back pressure speed. The power source is turned on to the charge to be charged 9 and charged for charging.

The charger provided by the present invention further includes at least one LED lamp 6 disposed in the casing 2 and the light of the LED lamp 6 can be transmitted through the light transmitting portion 211. In the embodiment, the LED lamp 6 The light is disposed above the electrical terminal 3 and the position corresponds to the light transmitting portion 211. Preferably, the LED light is exposed outside the casing 2 through the through hole of the light transmitting portion 211. The LED lamp 6 is electrically connected to the control circuit 5, and when the object to be charged 9 is electrically connected to the battery 8, the LED lamp 6 is also electrically connected to the control circuit 5 to emit light, thereby reminding the user of the The charge to be charged 9 is being charged, and when the charge to be charged 9 is not electrically connected to the battery 8, the LED lamp 6 is not electrically connected to the control circuit 5 and does not emit light.

It should be noted that, if the locomotive or the electric bicycle is not started and the object to be charged 9 is electrically connected to the electrical terminal 3, the control circuit 5 can measure the resistance inside the battery 8, and the resistance of the LED lamp 6. And the resistance of the wire 51 and the voltage drop of the battery 8 itself when the battery 8 is transmitted to the control circuit 5, if the voltage of the battery 8 after transmission is lower than a predetermined voltage (for the locomotive or the electric bicycle to start The minimum voltage), the control circuit 5 can control the battery 8 not to be electrically connected to the to-be-charged object 9 without charging, and the LED lamp 6 does not emit light, thereby preventing the battery voltage from being lower than the preset after charging occurs. The voltage does not occur when the locomotive or the electric bicycle cannot be started. For example, for example, the minimum voltage of the locomotive or the electric bicycle is 12.5V, and the preset voltage can be set by considering other external factors (resistance or noise). 12.6V, to avoid the battery 8 can not be used for locomotives or electric bicycles if the voltage is lower than 12.5V after charging.

In addition, if the locomotive or the electric bicycle is traveling and the to-be-charged object 9 is electrically connected to the electrical terminal 3, the LED lamp 6 emits light to remind the user that the object to be charged 9 is entering. The charging circuit can simultaneously measure the back pressure speed and the voltage drop speed of the battery 8. When the back pressure of the battery 8 is lower than the voltage drop speed of the battery 8, the control circuit 5 can control the battery 8 The charging device 9 is electrically connected without charging or stopping the charging behavior. At this time, the LED lamp 6 is not electrically connected to the control circuit 5 and does not emit light, thereby preventing the voltage of the battery 8 from being lower than the voltage. The voltage is preset to cause problems such as a flameout of the locomotive or the electric bicycle.

In actual use, please refer to FIG. 2 and FIG. 3 . The charger provided by the present invention can be disposed at the handle of a locomotive or other position through the casing 2, and the LED lamp 6 can be used to remind the user to wait for the object. Whether or not the charging object 9 is charged, it can be understood that in other possible embodiments, the color of the LED light can be changed to remind the user that the object to be charged is currently charged.

Compared to conventional techniques, conventional chargers typically only measure (or do not measure) the voltage of the battery and selectively charge to the object to be charged, since the battery may have internal resistance due to aging or during battery charging. It is also possible to generate a resistor. Therefore, the voltage value measured by the conventional charger may be different from the actual voltage value due to the internal resistance of the battery or the resistance generated during transmission. In view of this, the charging provided by the present invention is provided. Through the control circuit, the resistance between the battery and the object to be charged and the back pressure and voltage drop speed of the battery can be measured, and according to the result of the measurement, the battery is electrically controlled to be electrically connected to the object to be charged for charging. Therefore, the control circuit can accurately measure the voltage of the battery during actual operation, which can not only effectively prevent the locomotive or the electric bicycle from being unable to be started after charging, or the battery voltage during the traveling is insufficient due to charging to the object to be charged. Supply of locomotives or electric bicycles to operate and stall.

In addition, the illumination of the LED lamp allows the user to obtain the charging condition of the object to be charged, and further, since the light transmitting portion is disposed in the upper casing, the Eye-catching reminder.

In summary, the charger provided by this creation is not only structurally simple and practical, but also effectively avoids the situation that the battery of the locomotive or the electric bicycle is over-powered and cannot be started or turned off, which is highly effective and consistent. The relevant provisions of the Patent Law, the application for a patent in accordance with the law, the approval of the Office for the early approval of patents, the real sense of virtue.

21‧‧‧Upper casing

22‧‧‧ Lower case

211‧‧‧Perforation

3‧‧‧Electrical connection

5‧‧‧Control circuit

51‧‧‧Wire

52‧‧‧Substrate

6‧‧‧LED lights

8‧‧‧Battery

Claims (8)

A charger is electrically connected to a battery of a locomotive or an electric bicycle. The charger comprises: a casing having a port; and an electrical connector located in the port of the casing and exposed to the casing for supplying power a control circuit is disposed in the housing and electrically connected to the battery and the electrical connection; wherein the control circuit can obtain the resistance between the battery and the object to be charged and The back pressure of the battery, the control circuit can selectively conduct power to the battery to be charged and charge according to the resistance or/and the back pressure speed. The charger of claim 1, wherein the resistor comprises an internal resistance of the battery. The charger of claim 1, wherein the control circuit is electrically connected to the battery through a wire, the resistor comprising a resistance of the wire and an internal resistance of the battery. The charger of claim 1, wherein the control circuit controls the battery to be electrically connected to the object to be charged when the back pressure of the battery is less than the voltage drop speed of the battery. The charger of claim 1, further comprising at least one LED lamp, the housing having a light transmitting portion, the LED lamp being disposed in the housing and the light of the LED lamp being transparent from the light transmitting portion The LED lamp is electrically connected to the control circuit. When the electrical connector is electrically connected to the battery, the LED lamp is electrically connected to the control circuit to emit light. The charger of claim 5, wherein the control circuit is electrically connected to the battery through a wire, the resistor comprising a resistance of the wire, a resistance of the LED lamp, and a battery Internal resistance. The charger of claim 1, wherein the housing comprises an upper housing and a lower housing, the upper and lower housings can define an accommodating space and the opening, and the opening communicates with the receiving Space and exterior. The charger of any one of claims 1 to 7, wherein the electrical connector is a USB slot.