CN211480942U

CN211480942U - Power adapter

Info

Publication number: CN211480942U
Application number: CN201921195177.6U
Authority: CN
Inventors: 童彦彰
Original assignee: Huayi Semiconductor Shenzhen Co ltd
Current assignee: Huayi Semiconductor Shenzhen Co ltd
Priority date: 2019-05-19
Filing date: 2019-07-27
Publication date: 2020-09-11
Anticipated expiration: 2029-07-27
Also published as: CN111725858A; WO2020233445A1

Abstract

The utility model discloses a power adapter, include: the power supply input port is connected with an external power supply and used for providing power supply; the power supply output port is connected with the charging product through the charging element; the wired charging module is used for converting an input power supply into a power supply suitable for charging products; one end of a power supply of the wireless charging module is connected with the power supply input port; and the judging and detecting module is used for detecting the type of the charging element of the power supply output port and communicating the wired charging module or the wireless charging module according to the result. The utility model discloses a setting up of judging and listening module makes it can be when the device of difference inserts by the automatic judgement circuit, and the judgement is the coil or other electronic device that wireless charges, switches different charge mode afterwards.

Description

Power adapter

Technical Field

The utility model relates to a power supply unit technical field especially relates to a power adapter.

Background

The power adapter is also called an external power supply, is a power supply voltage conversion device for small portable electronic equipment and electronic appliances, and is commonly used in small electronic products such as mobile phones, liquid crystal displays, notebook computers and the like. With the continuous development of science and technology, people's life has been gradually gone into to diversified mode of charging, common like wireless module of charging etc.. However, most of power adapters in the prior art only have a single charging mode, and cannot flexibly switch the charging mode according to requirements, and wireless charging equipment in the prior art is large in size, large in cost, and cannot be conveniently arranged on a table, a car or other public places.

Therefore, it is necessary to provide a new power adapter to solve the above problems.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem, the utility model provides a power adapter, it can combine wireless charging and wired charging, reduces the cost that individual wireless charges, on wireless charging device, because no control circuit only remains the charging coil, reduces the equipment size by a wide margin.

The utility model provides a power adapter, include:

the power supply input port is connected with an external power supply and used for providing power supply; and

the power supply output port is connected with the charging product through a charging element, and preferably, the power supply output port is USB TYPE C; and

the wired charging module is used for converting an input power supply into a power supply suitable for charging products (such as converting alternating current into direct current) and the like; and

the wireless charging module is connected with the power input port at one end of the power supply; and

the judging and detecting module is connected with the wired charging module and the wireless charging module and connected with the power output port, and the judging and detecting module is used for detecting the type of a charging element of the power output port and is communicated with the wired charging module or the wireless charging module according to the result.

Optionally, the wired charging module includes:

the first power supply processing circuit is connected with the power supply input port and is used for converting an external power supply into a power supply suitable for a wired charging product, and preferably, the first power supply processing circuit is a rectifying and filtering module; and

the first power output control circuit is connected with the first power processing circuit and the judging and detecting module and is used for controlling the connection/disconnection of the wired charging module and the judging and detecting module; and

the first micro-processing unit is connected with the first power supply processing circuit and the first power supply output control circuit and is used for controlling the first power supply processing circuit according to the environment of the wired charging module so as to control the output voltage, and preferably, the first micro-processing unit is a CPU; and

the wired environment detection circuit is connected with the first power supply processing circuit, the first micro-processing unit and the first power supply output control circuit and is used for feeding back the environment information of the wired charging module to the first micro-processing unit; and

and the wired coupling circuit is connected with the first micro-processing unit and the first power output control circuit.

Preferably, the wired environment detection circuit includes:

the voltage detection circuit is used for feeding back the voltages of the first power output control circuit and the first power processing circuit to the first micro-processing unit, and the first micro-processing unit adjusts the first power processing circuit and the wired coupling circuit according to the feedback voltage so as to adjust the output voltage; and

the temperature detection circuit is used for feeding back the temperatures of the first power output control circuit and the first power processing circuit to the first micro-processing unit.

Optionally, the wireless charging module includes:

a second power processing circuit, connected to the power input, for converting an external power source into a power source suitable for a wireless charging product, wherein preferably the second power processing circuit is a driving circuit; and

the second power output control circuit is connected with the second power processing circuit and the judging and detecting module and is used for controlling the connection/disconnection of the wired charging module and the judging and detecting module; and

a second micro-processing unit, connected to the second power processing circuit and the second power output control circuit, for controlling the second power processing circuit according to the environment of the wired charging module to control the output voltage, preferably, the second micro-processing unit is a CPU; and

the wireless environment detection circuit is connected with the second power supply processing circuit, the second micro-processing unit and the second power supply output control circuit and is used for feeding back the environment information of the wireless charging module to the second micro-processing unit; and

and the wireless coupling circuit is connected with the second micro-processing unit and the second power output control circuit.

In a further aspect, the determining and detecting module includes:

the wired and wireless charging switching control circuit is connected with the wired charging module and is used for connecting/disconnecting the wired charging module or the wired charging module according to the feedback signal; and

the detection circuit, the power output port and the wired and wireless charging switching control circuit are used for sending out detection signals and transmitting feedback signals of the power output port to the wired and wireless charging switching control circuit.

In one embodiment, the detection circuit sends out a detection signal, and judges whether a wireless charging coil or other electronic devices are connected to the power output port according to a feedback signal of the power output port, if the wireless charging coil is connected, the function is switched to a wireless charging mode (the wireless charging module is connected through the wired and wireless charging switching control circuit), and the wired charging function is switched off (the wired charging module is cut off through the wired and wireless charging switching control circuit); if the wireless charging function is the wireless charging function, the wireless charging function is switched off (the wireless charging module is switched off through the wired and wireless charging switching control circuit), the wired charging module is switched off through the wired and wireless charging switching control circuit, and meanwhile, charging control and power supply are carried out according to wired charging specifications.

In a preferred embodiment, the wired and wireless charging switching control circuit comprises two circuit breakers.

In another preferred embodiment, the wired and wireless charging switching control circuit comprises two manual switches.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model can automatically judge whether the circuit is a wireless charging coil or other electronic devices when different devices are accessed through the arrangement of the judging and detecting module, and if the circuit is a wireless charging coil, the function is switched to a wireless charging mode, and the wired charging function is closed; if the wireless charging function is not the same as the wireless charging function, the wireless charging function is turned off, and meanwhile, charging control and power supply are carried out according to the wired charging specification. Or the automatic judgment mechanism can be directly closed or switched in a hardware or software mode and is fixed to be charged wirelessly or in a wired mode. The charging can be carried out by using the same interface regardless of wireless charging or wired charging, so that the charging convenience and the flexible use of the charging hole are greatly improved.

And simultaneously, the utility model discloses set up wireless controller that charges in power adapter, on wireless charging equipment, because no control circuit only leaves the charging coil, reduce the equipment size by a wide margin, consequently can be more convenient arrange in desktop, car, and public place etc.. The cost of the power adapter is only slightly increased, the cost of purchasing wireless charging products by consumers is greatly reduced, and the product development cost is also simplified.

Drawings

FIG. 1 is a schematic view of the connection relationship of the present invention;

fig. 2 is a schematic structural diagram of a wired charging module according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a wireless charging module according to an embodiment of the present invention;

fig. 4 is a schematic diagram illustrating a pin contact arrangement of a power outlet according to embodiment 2 of the present invention;

fig. 5 is a schematic diagram illustrating a pin contact arrangement of a power outlet according to embodiment 3 of the present invention;

fig. 6 is a schematic diagram of the structure of the judging and detecting module of the present invention.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

The present invention will be further explained with reference to the drawings and the embodiments.

Referring to fig. 1, the present invention provides a power adapter, including:

the judging and detecting module is connected with the wired charging module and the wireless charging module, the judging and detecting module is connected with a power output port, the judging and detecting module is used for detecting the type of a charging element of the power output port, and the judging and detecting module is communicated with the wired charging module or the wireless charging module according to the result; when the power output port is connected with the wireless charging coil, the potential (namely, comparison potential) of a line connected with the power output port is higher than the potential (namely, reference potential) of a reference line, the wireless charging function starting signal is high potential, the wireless charging module judges to enter a wireless charging mode according to the high potential, the wired charging module judges to stop a wired charging mode according to the high potential, and the output of the wired charging function is stopped; when the power output port is connected with the wired charging electronic device, the comparison potential is lower than the reference potential because the high resistor is connected with the ground wire of the power supply, the starting signal of the wired charging function is high potential, and the wired charging function is started; the wireless charging function starting signal is at a low potential, so that the output of the wireless charging function is stopped, and the power adapter performs a wired charging function.

Referring to fig. 2, in an embodiment, the wired charging module includes:

In a preferred embodiment, the wired environment detection circuit includes:

Referring to fig. 3, in another embodiment, the wireless charging module includes:

In another embodiment, the determining and detecting module comprises:

Example 1

In this embodiment, the utility model discloses a when power adapter uses as communication or power, its power outlet is USB TYPE C and connects, and its connects each pin and power adapter circuit connection corresponding relation as follows:

TABLE 1 schematic of the correspondence between each pin of the connector and the power adapter circuit connection

The socket in the watch represents the female head of USB TYPE C of the power outlet of the power transmission and distribution device, the plug refers to the male head of interface USB TYPE C on the receiver, the upper numbers A1 to A12 and B1 to B12, when the receiver is connected with the power adapter, the A1 on the socket is connected with the A1 on the plug, and other signals are the same, for example, the B9 on the socket is connected with the B9 on the plug; in another case, since USB TYPE C can be connected in the positive or negative direction, a1 on the receptacle would be connected to B1 on the plug, as would other signals, such as B6 on the receptacle and a6 on the plug. GND is ground; VBUS is the main charging power supply; TX1+ and TX 1-are USB 3 first set of output communication signals; TX2+ and TX 2-are USB 3 second set of output communication signals; RX1+ and RX 1-are the USB 3 first set of received communication signals; RX2+ and RX 2-are USB 3 second set of received communication signals; d + and D-are the initial communication settings for receiving and outputting communication signals by the USB2 and also for charging; SBUs 1 and 2 are audio signals; VCONN is a power supply signal during charging and quick charging; CC1, CC2, and CC are fast charge request reply signals. During charging, no signal is received at the charging terminals TX1+, TX1-, TX2+, TX2-, RX1+, RX1-, RX2+, RX2-, SBU1 and SBU2, and no effect is caused; during charging, the D + and the D-of the receiving end firstly make initial communication setting of charging; then, the CC of the receiving end is connected to the CC1 or CC2 through the interface, the receiving end transmits the charging request, and the power supply receives the request and starts the charging service from VBUS and GND.

Example 2

Referring to fig. 4, in this embodiment, when the power adapter of the present invention is used as a communication or wired charging power source, the power output port is a USB TYPE C connector, and the corresponding relationship between each pin of the connector and the power adapter circuit connection is as follows:

TABLE 2 schematic of the correspondence between each pin of the connector and the power adapter circuit

The signal connections are the same as stated in the previous paragraph, with numbers a1 through a12 and B1 through B12, with a1 on the receptacle connected to a1 on the plug when the receiver is connected to the power adapter, as are other signals, such as B9 on the receptacle connected to B9 on the plug; in another case, since USB TYPE C can be connected in the positive or negative direction, a1 on the receptacle would be connected to B1 on the plug, as would other signals, such as B6 on the receptacle and a6 on the plug. During charging, signals are idle-connection signals at charging terminals TX1+, TX1-, TX2+, TX2-, RX1+, RX1-, RX2+, RX2-, SBU1 and SBU2, and no effect is caused, so that no mark appears at the original corresponding position on the table; during charging, the D + and the D-of the receiving end firstly make initial communication setting of charging; then, the CC of the receiving end is connected to the CC1 or CC2 through the interface, the receiving end transmits the charging request, and the power supply receives the request and starts the charging service from VBUS and GND.

Example 3

Referring to fig. 5, in the embodiment, the power adapter of the present invention is used for wireless charging, and if VBUS and GND are used as coil charging contacts, the impedance of the power line will increase, the performance will decrease, and the heat energy will increase. The use of communication contacts can cause high voltage damage to common circuit components. The connection relationship is set as follows:

TABLE 3 schematic of the correspondence between each pin of the connector and the power adapter circuit

The A8SET signal on the socket is connected with the A8 on the plug, the A8 is a null signal, the power adapter can judge that the signal on the socket is also the signal on the SET B8, the B8SET signal on the socket is connected with the B8VBUS on the plug, the power adapter senses the SET signal to be high potential at the moment, the power adapter turns on the wireless charging function at the moment but turns off the wired charging function, the wireless charging control circuit on the power adapter can drive the wireless charging coil, the A2, the A3, the B10 and the B11 on the socket are drive signals of TC1, the A10, the A11, the B2 and the B3 on the socket are drive signals of TC2, and the TC + and TC connected to the tap respectively, so as to perform the charging and communication functions of wireless charging.

If the wireless charging coil is changed into the wired charging receiver for access at this time, as shown in fig. 5, at this time, the plugs at the receiving ends corresponding to A8 and B8 on the socket are all idle access signals, and the power adapter turns off the wireless charging function but turns on the wired charging function at this time to start wired charging. In general, the basic power consumption of wired charging is far lower than that of wireless charging, so the wireless charging service is closed and the wired charging service is opened in the presetting.

The utility model discloses a power adapter is when using, and concrete flow step is as follows:

step one, judging a charging mode;

the judging and detecting module detects a device to be charged connected to a power supply output port, and judges whether the device to be charged is a wireless charging coil or a wired electronic device;

step two, starting a charging mode;

the judging and detecting module starts a wireless charging mode or a wired charging mode according to the judging result;

step three, judging the charging specification;

in different charging modes, the wireless charging mode or the wired charging mode respectively judges the charging specification required in the mode, and according to the charging specification, the charging voltage suitable for the charging specification is output.

And step four, finishing charging.

In the first step, the judging and detecting module comprises a comparator, the input end of the comparator is respectively connected with the power output port, the first end of the high resistor and the reference voltage, the output end of the comparator is connected with the wireless charging module and the wired charging module, and the second end of the high resistor is grounded; when the power output port is connected with the wireless charging coil, the potential (namely, comparison potential) of a line connected with the power output port is higher than the potential (namely, reference potential) of a reference line, the wireless charging function starting signal is high potential, the wireless charging module judges to enter a wireless charging mode according to the high potential, the wired charging module judges to stop a wired charging mode according to the high potential, and the output of the wired charging function is stopped; when the power output port is connected with the wired charging electronic device, the comparison potential is lower than the reference potential because the high resistor is connected with the ground wire of the power supply, the starting signal of the wired charging function is high potential, and the wired charging function is started; the wireless charging function starting signal is at a low potential, so that the output of the wireless charging function is stopped, and the power adapter performs a wired charging function.

In the third step, the wired environment detecting circuit or the wireless environment detecting circuit is configured to detect a charging specification required by the device to be charged, and feed back detection data to the first micro-processing unit or the second micro-processing unit, where the first micro-processing unit or the second micro-processing unit outputs different charging voltages according to the charging specification.

In the third step, the wired environment detecting circuit or the wireless environment detecting circuit is further configured to monitor a current voltage and a temperature of the wired charging module or the wireless charging module, and when the current voltage and the temperature exceed preset thresholds, the first micro-processing unit or the second micro-processing unit controls to stop charging.

It should be noted that the embodiments of the present invention are written in a progressive manner, and the differences from the previous embodiments are mainly described, and the same parts in the embodiments may refer to the previous embodiments.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. A power adapter, comprising:

the power supply output port is connected with the charging product through the charging element; and

the wired charging module is used for converting an input power supply into a power supply suitable for charging products; and

2. The power adapter as claimed in claim 1, wherein said wired charging module comprises:

the first power supply processing circuit is connected with the power supply input port and is used for converting an external power supply into a power supply suitable for a wired charging product; and

the first micro-processing unit is connected with the first power supply processing circuit and the first power supply output control circuit and is used for controlling the first power supply processing circuit according to the environment of the wired charging module so as to control the output voltage; and

3. The power adapter as claimed in claim 2, wherein said wired environment detection circuit comprises:

the voltage detection circuit is used for feeding back the voltages of the first power supply output control circuit and the first power supply processing circuit to the first micro-processing unit; and

4. The power adapter as claimed in claim 1, wherein said wireless charging module comprises:

the second power supply processing circuit is connected with the power supply input port and is used for converting an external power supply into a power supply suitable for a wireless charging product; and

the second micro-processing unit is connected with the second power supply processing circuit and the second power supply output control circuit and is used for controlling the second power supply processing circuit according to the environment of the wired charging module so as to control the output voltage; and

5. The power adapter as claimed in any one of claims 1-4, wherein said determining and detecting module comprises: