CN218920027U

CN218920027U - Tail circuit compatible with TYPE_C charging and MCC magnetic attraction charging and lighting equipment thereof

Info

Publication number: CN218920027U
Application number: CN202223162671.7U
Authority: CN
Inventors: 黄科明
Original assignee: Dongguan Aolei Mobile Lighting Equipment Co Ltd
Current assignee: Dongguan Aolei Mobile Lighting Equipment Co Ltd
Priority date: 2022-11-29
Filing date: 2022-11-29
Publication date: 2023-04-25
Anticipated expiration: 2032-11-29

Abstract

The utility model belongs to the technical field of electronic circuits, and relates to a tail circuit compatible with TYPE_C charging and MCC magnetic attraction charging and a lighting device thereof.

Description

Tail circuit compatible with TYPE_C charging and MCC magnetic attraction charging and lighting equipment thereof

Technical Field

The utility model belongs to the technical field of electronic circuits, and relates to a tail circuit compatible with TYPE_C charging and MCC magnetic attraction charging and lighting equipment thereof.

Background

With unified use of type_c interface by the european union in 2024, charging will replace MCC we originally used in unified. In order to meet the requirement that the original MCC charging interface lighting equipment can be charged by using MCC and is compatible with the unified use of TYPE_C interface of European Union, the lighting equipment compatible with TYPE_C and MCC charging is derived. However, when the lighting equipment of the model is charged, if the TYPE_C interface and the MCC charging interface on the lighting equipment are connected to the charger at the same time by carelessness, the TYPE_C interface and the MCC charging interface can charge the lighting equipment at the same time, so that the current of the lighting equipment during charging is too large, and the lighting equipment is easy to fail during charging.

Disclosure of Invention

The utility model aims to provide a tail circuit compatible with TYPE_C charging and MCC magnetic attraction charging and a lighting device thereof, aiming at the defects of the prior art, and solving the problem that when a TYPE_C interface and an MCC charging interface are simultaneously connected to a charger, the current of the lighting device is overlarge during charging, so that the lighting device fails during charging.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a type_c charging and MCC magnetically charging compatible tail circuit, comprising: TYPE_C interface, MCC magnetism interface, charge management chip and charge switching circuit, TYPE_C is used for connecting power adapter, TYPE_C interface's voltage output terminal is connected charge switching circuit's controlled end, just TYPE_C interface's voltage output terminal is still connected charge management chip's voltage input terminal, charge management chip's voltage output terminal is used for connecting the voltage input terminal of lighting apparatus host computer, MCC magnetism interface is used for connecting the MCC magnetism and inhales the charger, MCC magnetism interface's voltage output terminal is connected charge switching circuit's voltage input terminal, charge switching circuit's voltage output terminal is used for connecting the voltage input terminal of lighting apparatus host computer.

Further, the charging switching circuit includes: the MOS transistor comprises a first MOS transistor, a second MOS transistor and a first resistor, wherein the drain electrode of the first MOS transistor is connected with the MCC magnetic interface, the grid electrode of the first MOS transistor is connected with the voltage output end of the TYPE_C interface, the source electrode of the first MOS transistor is connected with the source electrode of the second MOS transistor, the drain electrode of the second MOS transistor is connected with the voltage input end of the lighting equipment host, the grid electrode of the second MOS transistor is connected with the grid electrode of the first MOS transistor, the first end of the first resistor is connected with the grid electrode of the second MOS transistor, and the second end of the first resistor is grounded.

Further, the tail circuit further includes: and the voltage input end of the charging indicating circuit is connected with the voltage output end of the TYPE_C interface, and the voltage output end of the charging indicating circuit is connected with the charging management chip.

Further, the tail circuit further includes: the first filter circuit is arranged between the voltage output end of the TYPE_C interface and the voltage input end of the charge management chip.

Further, the tail circuit further includes: the second filter circuit is arranged between the voltage output end of the charging management chip and the voltage input end of the lighting equipment host.

Furthermore, a first inductor and a second resistor are also connected between the voltage output end of the charging management chip and the second filter circuit once.

Further, the voltage detection end of the charging management chip is connected to the connection end of the second resistor and the second filter circuit.

Further, the model of the charge management chip is SLM6510.

The present utility model also provides a lighting device comprising: the main part, the afterbody of main part is equipped with the portion that charges, be equipped with on the portion that charges a compatible TYPE_C charges and MCC magnetism inhale the afterbody circuit that charges.

The utility model has the beneficial effects that:

through setting up the switching circuit that charges, the voltage input end of switching circuit that charges connects the MCC magnetism is inhaled the voltage output end of interface, the voltage output end of switching circuit that charges is used for connecting the voltage input end of lighting apparatus host computer, when MCC magnetism is inhaled interface and TYPE_C interface and is connected the charger simultaneously, afterbody circuit can the priority choice TYPE_C charges to prevent that MCC magnetism from inhaling interface and TYPE_C interface both simultaneously and charge for lighting apparatus, played fine guard action to lighting apparatus charges, thereby when solving TYPE_C interface and MCC charging interface and being connected the charger simultaneously, avoid lighting apparatus electric current too big when charging, lead to lighting apparatus to appear the problem of trouble when charging. The charging switching circuit comprises: the first MOS tube, the second MOS tube and the first resistor can ensure that the MCC magnetic attraction interface or the TYPE_C interface can not be mutually conducted to cause current reverse irrigation when being charged, thereby improving the safety of the lighting equipment when being charged.

Drawings

FIG. 1 is a schematic diagram of a tail circuit of the present utility model;

fig. 2 is a schematic structural view of a charging section in the present utility model.

The marks in the figure are as follows: 100-charging part, 110-MCC magnetic interface and 120-TYPE_C interface.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Since lighting devices compatible for charging both type_c and MCC are currently commercially available. However, when the lighting device of the above model is charged, if the type_c interface 120 and the MCC charging interface on the lighting device are connected to the charger at the same time by carelessness, the type_c interface 120 and the MCC charging interface will charge the lighting device at the same time, so that the current of the lighting device during charging is too large, which easily causes the lighting device to fail during charging. Accordingly, referring to fig. 1, the present utility model provides a tail circuit compatible with type_c charging and MCC magnetically charging, comprising: TYPE_C interface 120, MCC magnetic interface 110, charge management chip U2 and charge switching circuit, voltage TYPE_C is used for connecting power adapter, the controlled end of voltage charge switching circuit is connected to the voltage output of TYPE_C interface 120, and the voltage input VCC of charge management chip U2 is still connected to the voltage output of TYPE_C interface 120, the voltage output LX of charge management chip U2 is used for connecting the voltage input of lighting apparatus host computer, voltage MCC magnetic interface 110 is used for connecting the voltage MCC magnetic charger, the voltage input of voltage charge switching circuit is connected to the voltage output of voltage MCC magnetic interface 110, the voltage output of voltage charge switching circuit is used for connecting the voltage input of lighting apparatus host computer. In this embodiment, the model of the charge management chip U2 is SLM6510.

Through setting up the switching circuit that charges, the voltage input end of switching circuit that charges connects the voltage MCC magnetism and inhale the voltage output end of interface 110, the voltage output end of switching circuit that charges is used for connecting the voltage input end of lighting apparatus host computer, when MCC magnetism inhale interface 110 and TYPE_C interface 120 and insert the charger simultaneously, afterbody circuit can the priority choice TYPE_C charges, in order to prevent MCC magnetism inhale interface 110 and TYPE_C interface 120 and charge for lighting apparatus simultaneously, lighting apparatus charges has played the guard action well, thereby solve TYPE_C interface 120 and MCC charging interface and insert the charger simultaneously when the electric current of lighting apparatus when charging is too big, lead to the problem that lighting apparatus breaks down when charging.

In one embodiment, since the above-mentioned lighting device is provided with the MCC magnetic interface 110 and the type_c interface 120, when charging the lighting device, the MCC magnetic interface 110 or the type_c interface 120 may be turned on to cause a current reverse-charging problem, so the voltage charging switching circuit includes: the voltage source of the voltage first MOS tube is connected with the source of the voltage second MOS tube, the drain of the voltage second MOS tube is connected with the voltage input end of the voltage lighting equipment host, the grid of the voltage second MOS tube is connected with the grid of the voltage first MOS tube, the first end of the voltage first resistor is connected with the grid of the voltage second MOS tube, and the second end of the voltage first resistor is grounded. The charging switching circuit formed by the first MOS tube, the second MOS tube and the first resistor can ensure that the MCC magnetic interface 110 or the TYPE_C interface 120 can not be mutually conducted to cause current reverse charging when being charged, thereby improving the safety of the lighting equipment when being charged.

In one embodiment, the voltage tail circuit further comprises: and the voltage input end of the voltage charge indicating circuit is connected with the voltage output end of the voltage TYPE_C interface 120, and the voltage output end of the voltage charge indicating circuit is connected with the charge management chip U2. Further, the charge indication circuit includes: the LED charging system comprises a fourth resistor R4, a red LED lamp D1 and a green LED lamp D2, wherein the first end of the fourth resistor R4 is connected with the voltage output end of a TYPE_C interface 120, the second end of the fourth resistor R4 is simultaneously connected with the positive electrode connecting end of the red LED lamp D1 and the positive electrode connecting end of the green LED lamp D2, the negative electrode connecting end of the red LED lamp D1 is connected with a No. 3 pin NCHAG of a charging management chip U2, and the negative electrode connecting end of the green LED lamp D2 is connected with a No. 4 pin NSTDBY of the charging management chip U2. Through setting up the instruction circuit that charges for lighting apparatus can light the red light when charging, light the green light when being full of, thereby the charge condition of lighting apparatus of convenience of customers understanding that can be better.

In one embodiment, the voltage tail circuit further comprises: the first filter circuit is disposed between the voltage output terminal of the voltage type_c interface 120 and the voltage input terminal VCC of the charge management chip U2. Further, the first filter circuit includes: the third capacitor C3 and the fourth capacitor C4, the third capacitor C4 and the fourth capacitor C3 are sequentially disposed between the voltage output end of the type_c interface 120 and the voltage input end VCC of the charge management chip U2, and the other ends of the third capacitor C3 and the fourth capacitor C4 are grounded.

In one embodiment, the voltage tail circuit further comprises: the second filter circuit is arranged between the voltage output end LX of the charging management chip U2 and the voltage input end of the voltage lighting equipment host. Further, the second filter circuit includes: the first capacitor C1 and the second capacitor C2 are sequentially arranged between the voltage output end LX of the charge management chip U2 and the voltage input end of the voltage lighting equipment host, and the other ends of the first capacitor C1 and the second capacitor C2 are grounded

In one embodiment, a first inductor L1 and a second resistor R2 are further connected between the voltage output end LX of the charge management chip U2 and the voltage second filter circuit.

In one embodiment, the voltage detection terminal BAT of the charge management chip U2 is connected to the connection terminal of the voltage second resistor R2 and the voltage second filter circuit, and further, the pin No. 7 VS of the charge management chip U2 is connected between the first inductor L1 and the second resistor R2, and the pin No. 1 GND of the charge management chip U2 is grounded.

Referring to fig. 2, the present utility model also provides a lighting device comprising: the main part, the afterbody of main part is equipped with charging portion 100, is equipped with on the charging portion 100 the afterbody circuit.

Charging principle: when the TYPE_C interface 120 is not connected with the power adapter, vgs voltages of the first MOS transistor Q1 and the second MOS transistor Q2 are < -1V, so that the first MOS transistor Q1 and the second MOS transistor Q2 are in a conducting state, and when the MCC magnetic interface 110 is connected with the magnetic charging device for charging, the magnetic charging device can charge a host through the MCC magnetic interface 110; when the type_c interface 120 is connected to the power adapter, vgs voltages of the first MOS transistor Q1 and the second MOS transistor Q2 are >0V, so that the charging switching circuit is in an open state, and thus the MCC magnetic attraction interface 110 is disconnected from the lighting device host, the pin No. 5 TS of the charging management chip U2 enables high level to be opened, the type_c interface 120 is conducted with the charging management chip U2, and output current is supplied to the lighting device host for charging, and at this time, the power adapter charges the lighting device host through the type_c interface 120 and ensures that current does not flow to the MCC magnetic attraction interface 110.

The above-described embodiments are only one of the preferred embodiments of the present utility model, and the ordinary changes and substitutions made by those skilled in the art within the scope of the present utility model should be included in the scope of the present utility model.

Claims

1. Tail circuit compatible with TYPE_C charging and MCC magnetic attraction charging, and is characterized by comprising: the charging control device comprises a TYPE_C interface, an MCC magnetic interface, a charging management chip and a charging switching circuit, wherein the TYPE_C is used for being connected with a power adapter, a voltage output end of the TYPE_C interface is connected with a controlled end of the charging switching circuit, a voltage output end of the TYPE_C interface is also connected with a voltage input end of the charging management chip, the voltage output end of the charging management chip is used for being connected with a voltage input end of a host of the lighting equipment, the MCC magnetic interface is used for being connected with an MCC magnetic charger, the voltage output end of the MCC magnetic interface is connected with a voltage input end of the charging switching circuit, and the voltage output end of the charging switching circuit is used for being connected with a voltage input end of the host of the lighting equipment; the charge switching circuit includes: the MOS transistor comprises a first MOS transistor, a second MOS transistor and a first resistor, wherein the drain electrode of the first MOS transistor is connected with the MCC magnetic interface, the grid electrode of the first MOS transistor is connected with the voltage output end of the TYPE_C interface, the source electrode of the first MOS transistor is connected with the source electrode of the second MOS transistor, the drain electrode of the second MOS transistor is connected with the voltage input end of the lighting equipment host, the grid electrode of the second MOS transistor is connected with the grid electrode of the first MOS transistor, the first end of the first resistor is connected with the grid electrode of the second MOS transistor, and the second end of the first resistor is grounded.

2. The tail circuit compatible with type_c charging and MCC magnetically charging of claim 1, further comprising: and the voltage input end of the charging indicating circuit is connected with the voltage output end of the TYPE_C interface, and the voltage output end of the charging indicating circuit is connected with the charging management chip.

3. The tail circuit compatible with type_c charging and MCC magnetically charging of claim 1, further comprising: the first filter circuit is arranged between the voltage output end of the TYPE_C interface and the voltage input end of the charge management chip.

4. The tail circuit compatible with type_c charging and MCC magnetically charging of claim 1, further comprising: the second filter circuit is arranged between the voltage output end of the charging management chip and the voltage input end of the lighting equipment host.

5. The tail circuit compatible with TYPE_C charging and MCC magnetic attraction charging as set forth in claim 4, wherein a first inductor and a second resistor are further connected between the voltage output end of the charging management chip and the second filter circuit.

6. The tail circuit compatible with TYPE_C charging and MCC magnetic attraction charging as set forth in claim 5, wherein a voltage detection end of the charge management chip is connected to a connection end of the second resistor and the second filter circuit.

7. The tail circuit compatible with type_c charging and MCC magnetically charging of claim 5, wherein the charge management chip is model number SLM6510.

8. A lighting device, comprising: a main body, the afterbody of main body is equipped with the portion that charges, be equipped with the afterbody circuit that compatible TYPE_C charges and MCC magnetism is inhaled the charge on the portion that charges of claim 1-7.