CN214314681U

CN214314681U - Multi-port charger

Info

Publication number: CN214314681U
Application number: CN202120227296.6U
Authority: CN
Inventors: 赵智星; 冷昭君; 詹海峰; 杨譓鹏
Original assignee: Hunan Giantsun Power Electronics Co Ltd
Current assignee: Hunan Giantsun Power Electronics Co Ltd
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2021-09-28
Anticipated expiration: 2031-01-27

Abstract

A multi-port charger comprises a transformer circuit board, an input rectifier circuit board, a filter circuit board, an output synchronous rectifier circuit board, a TYPE-C1 circuit board, a TYPE-C2 circuit board, a USBA circuit board and a heat dissipation device; the transformer circuit board is electrically connected with the filter circuit board and the output synchronous rectification circuit board, receives the filtered current of the rectification filter circuit of the filter circuit board and transmits the filtered current to the output synchronous rectification circuit board; the output synchronous rectification circuit board is electrically connected with the TYPE-C1 circuit board, the TYPE-C2 circuit board and the USB A circuit board, and synchronous rectification currents are output to the TYPE-C1 circuit of the TYPE-C1 circuit board, the TYPE-C2 circuit of the TYPE-C2 circuit board and the USB A circuit of the USB A circuit board; the input rectifying circuit board is electrically connected with the filter circuit board, rectified current is input into the rectifying filter circuit, and the rectified current is transmitted to the filter circuit of the filter circuit board; the heat dissipation device is electrically connected with the transformer circuit board.

Description

Multi-port charger

Technical Field

The utility model relates to a USB charger technical field, in particular to many mouthfuls of chargers.

Background

At present, with the development of consumer electronics, a multi-port output small-volume charger is a future trend, the common power adapter and the charger at present only have one circuit board, all devices are placed on one circuit board, the layout needs a large amount of space, a part of power adapter is also provided, the charger can adopt two circuit boards, namely a high-voltage circuit and a low-voltage circuit, so that some spaces can be fully utilized, some volumes are reduced, but the power density of the scheme is not large, and certain limitation exists.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a many mouthfuls of chargers can improve the power density of charger, and reduces the volume of charger for solve the condition that above background art appears.

The utility model provides a multi-port charger, which is characterized in that the charger comprises a transformer circuit board, an input rectifier circuit board, a filter circuit board, an output synchronous rectifier circuit board, a TYPE-C1 circuit board, a TYPE-C2 circuit board, a USB A circuit board and a heat dissipation device; wherein the content of the first and second substances,

the input rectifying circuit board is electrically connected with the filter circuit board, and rectified current is input into the rectifying and filter circuit;

the transformer circuit board is electrically connected with the filter circuit board and the output synchronous rectification circuit board, receives the current filtered by the filter circuit board and transmits the filtered current to the output synchronous rectification circuit board;

the output synchronous rectification circuit board is respectively and electrically connected with the TYPE-C1 circuit board, the TYPE-C2 circuit board and the USB A circuit board, and outputs synchronous rectification current to the TYPE-C1 circuit board, the TYPE-C2 circuit board and the USB A circuit board;

the heat dissipation device is electrically connected with the transformer circuit board.

Preferably, the input rectification circuit board is fixedly installed on the lower right side of the transformer circuit board and is positioned on the right side of the filter circuit board, and the input rectification circuit board is provided with an input rectification circuit.

Preferably, filter circuit board fixed mounting in transformer circuit board middle part, and be in TYPE-C1 circuit board and TYPE-C2 circuit board right side, be provided with filter circuit on the filter circuit board.

Preferably, the output synchronous rectification circuit board is fixedly installed on the upper left side of the transformer circuit board, is located on the upper side of the TYPE-C1 circuit board and on the left side of the heat dissipation device, and a filter circuit is arranged on the filter circuit board.

Preferably, TYPE-C1 circuit board fixed mounting in transformer circuit board left side downside is located TYPE-C2 circuit board, USB A circuit board downside, and with TYPE-C2 circuit board, two liang of parallels each other of USB A circuit board, be provided with TYPE-C1 circuit on the TYPE-C1 circuit board, be provided with TYPE-C2 circuit on the TYPE-C2 circuit board, be provided with the USB A circuit on the USB A circuit board.

Preferably, the circuits of the TYPE-C1 circuit board, the TYPE-C2 circuit board and the USB A circuit board use an IC protocol; wherein the content of the first and second substances,

the TYPE-C1 charging interface of the TYPE-C1 circuit board and the TYPE-C2 charging interface of the TYPE-C2 circuit board adopt a TYPE C protocol;

the USB-AUSB-A of the USB-AUSB-A circuit board adopts a USB protocol.

Preferably, the transformer circuit board further comprises a PWM control circuit and a loop feedback circuit; wherein the content of the first and second substances,

the PWM control circuit is connected with an input rectifying circuit of the input rectifying circuit board, acquires the rectified current signal and transmits the rectified current signal to the loop feedback circuit;

the loop feedback circuit is used for controlling current error signals generated by other circuits.

Preferably, the heat dissipation device is connected to the transformer circuit board and used for dissipating heat when the USB charger works.

The utility model has the advantages as follows:

the utility model provides a many mouthfuls of chargers, the shell be used for with transformer circuit board glues on the diapire with the parallel mode of face and diapire, input rectifier circuit board, input filter circuit board, the synchronous rectifier circuit board of output, TYPE-C1 circuit board, TYPE-C2 circuit board and USB A circuit board are all installed on the casing diapire with the broadside reason, fix in the shell of charger, fall into 7 circuit boards with the circuit board, and can effectually utilize the space through reasonable layout, the volume of charger has been reduced, because the circuit board has divided into 7 and has placed on the circuit board of difference, can effectively reduce the influence each other of circuit board, and can effectively adopt vice limit feedback circuit, reduce generating heat of power device, improve the power density of charger by a wide margin. The maximum power density can be 29W/in3 equivalent to 3 times of that of a common adapter and a charger.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.

The technical solution of the present invention is further described in detail by the accompanying drawings and examples.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a top view of a multi-port charger according to the present invention;

fig. 2 is a circuit diagram of a multi-port charger according to the present invention;

FIG. 3 is a structural view of a multi-port charger of the present invention;

fig. 4 is a structural view of a multi-port charger according to the present invention;

fig. 5 is a structural view of a multi-port charger according to the present invention.

The transformer comprises a transformer mainboard 1, an input rectifier circuit board 2, a filter circuit board 3, an output synchronous rectifier circuit board 4, a TYPE-C1 circuit board 5, a TYPE-C2 circuit board 6, a USBA circuit board 7, a heat dissipation device 8, a filter circuit 13, a synchronous rectifier circuit 14, a TYPE-C1 circuit 16, a TYPE-C2 circuit 16 and a USB A circuit 17.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Example 1:

according to fig. 1, the utility model provides a multi-port charger, which is characterized in that comprises a transformer circuit board 1, an input rectifier circuit board 2, a filter circuit board 3, an output synchronous rectifier circuit board 4, a TYPE-C1 circuit board 5, a TYPE-C2 circuit board 6, a USB A circuit board 7 and a heat dissipation device 8; wherein the content of the first and second substances,

the input rectifying circuit board 2 is electrically connected with the filter circuit board 3, and rectified current is input to the rectifying and filter circuit 13;

the transformer circuit board 1 is electrically connected with the filter circuit board 3 and the output synchronous rectification circuit board 4, and the transformer circuit board 1 receives the current filtered by the filter circuit board 3 and transmits the filtered current to the output synchronous rectification circuit board 4;

the output synchronous rectification circuit board 4 is respectively and electrically connected with the TYPE-C1 circuit board 5, the TYPE-C2 circuit board 6 and the USB A circuit board 7, and outputs synchronous rectification current to the TYPE-C1 circuit board 5, the TYPE-C2 circuit board 6 and the USB A circuit board 7;

the heat sink 8 is electrically connected to the transformer circuit board 1.

The working principle of the technical scheme is as follows:

the utility model discloses a with diapire vertically mode is with wide edge fixed mounting to input rectifier circuit board 2, filter circuit board 3, the synchronous rectifier circuit board of output 4, TYPE-C1 circuit board 5, TYPE-C2 circuit board 6 and USB A circuit board 7 transformer circuit board 1 is last to filter circuit board 3 reasonable has distributed the spatial layout in the charger, and the concrete performance is:

the circuit board falls into 7 circuit boards, transformer circuit board 1 glues on the diapire with the parallel mode of face and diapire, input rectifier circuit board 2, filter circuit board 3, output synchronous rectifier circuit board 4, TYPE-C1 circuit board 5, TYPE-C2 circuit board 6 and USB A circuit board 7 all install on the diapire with the broadside edge, and the face is perpendicular with the diapire.

The beneficial effects of the above technical scheme are:

the utility model relates to a many mouthfuls of chargers for a plurality of circuit boards of installation have realized utilizing the effective overall arrangement in space in the shell, have reduced the volume of charger.

Example 2:

as shown in fig. 1 to 5, the input rectification circuit board 2 is fixedly installed at the lower right side of the transformer circuit board 1 and at the right side of the filter circuit board 3, and an input rectification circuit 12 is disposed on the input rectification circuit board 2.

The working principle and the beneficial effects of the technical scheme are as follows:

the utility model discloses with input rectifier circuit board 2 and TYPE-C1 circuit board 5 space vertical, install on transformer circuit board 1 with the face perpendicular with the diapire, input rectifier circuit 12 is AC 90-264V; input rectifier circuit board 2, filter circuit board 3, the synchronous rectifier circuit board of output 4, TYPE-C1 circuit board 5, TYPE-C2 circuit board 6 and USB A circuit board 7 are installed with the diapire space is perpendicular, and the interval each other reduces the interact between the circuit, improves charge efficiency.

Example 3:

according to fig. 1-5, filter circuit board 3 fixed mounting in transformer circuit board 1 middle part, and be in TYPE-C1 circuit board 5 and TYPE-C2 circuit board 6 right side, be provided with filter circuit 13 on the filter circuit board 3.

the utility model discloses will input rectifier circuit board 2, filter circuit board 3, the synchronous rectifier circuit board of output 4, TYPE-C1 circuit board 5, TYPE-C2 circuit board 6 and USB A circuit board 7 and the perpendicular installation of diapire space, interval each other reduces the influence each other between the circuit, and filter circuit board 3 is connected to step-down circuit 11 through filter circuit 13, acquires the current signal after the step-down, improves charge efficiency.

Example 4:

according to fig. 1-5, output synchronous rectifier circuit board 4 fixed mounting in transformer circuit board 1 upper left side is in TYPE-C1 circuit board 5's upside, and is located heat abstractor 8's left side, be provided with filter circuit 13 on the filter circuit board 3.

the utility model discloses an output synchronous rectifier circuit board 4 links to each other with transformer circuit board 1 for synchronous output current improves the conversion efficiency of electric current.

Example 5:

according to fig. 1-5, TYPE-C1 circuit board 5 fixed mounting in transformer circuit board 1 left side downside is in TYPE-C2 circuit board 6, USB A circuit board 7 downside, and with TYPE-C2 circuit board 6, USB A circuit board 7 two liang of parallels each other, be provided with TYPE-C1 circuit 15 on TYPE-C1 circuit board 5, be provided with TYPE-C2 circuit 16 on TYPE-C2 circuit board 6, be provided with USB A circuit 17 on the USB A circuit board 7.

the utility model discloses some spaces of make full use of have reduced some volumes, will TYPE-C1 circuit board 5 and TYPE-C2 circuit board 6, USB A circuit board 7 are two liang of parallels each other, install perpendicularly on transformer circuit board 1 according to impartial distance, and two liang of mutual intervals, reasonable layout improves the power density of charger by a wide margin, reduces the influence each other between the circuit, improves charge efficiency.

Example 6:

according to the fig. 1-5, the circuits of TYPE-C1 circuit board 5, TYPE-C2 circuit board 6 and USB a circuit board 7 use the IC protocol; wherein the content of the first and second substances,

the TYPE-C1 charging interface of the TYPE-C1 circuit board 5 and the TYPE-C2 charging interface of the TYPE-C2 circuit board 6 adopt a TYPE C protocol;

the USB-AUSB-A of the USB-AUSB-A circuit board 7 adopts a USB protocol.

the utility model relates to a many mouthfuls of chargers through adopting serial bus technique, with the circuit connection of difference, uses different agreements, provides the signal between the circuit and gives the IC agreement, steps down, makes to simplify between the hardware of system, and is nimble, light to a many mouthfuls of chargers small, that the reliability is high is provided.

Example 7:

according to fig. 2, the transformer circuit board 1 further includes a PWM control circuit and a loop feedback circuit; wherein the content of the first and second substances,

the PWM control circuit is connected with an input rectifying circuit 12 of the input rectifying circuit board 2, and acquires the rectified current signal and transmits the rectified current signal to a loop feedback circuit;

The working principle of the technical scheme is as follows:

the utility model relates to a multi-port charger, the input rectification circuit 12 is AC90-264V, and is connected with the filter circuit 13 to form a rectification filter circuit; the rectifying and filtering circuit forms a direct current voltage transformation circuit through the transformer circuit board 1, outputs direct current to the PWM control circuit, the output synchronous rectifying circuit board 4 and the transformer circuit board 1, modulates the pulse width of a received current signal through the PWM control circuit, reduces the cost and the power consumption of a charger hardware system, can effectively reduce the influence of the circuit boards because the circuit boards are divided into 7 blocks and placed on different circuit boards, can effectively adopt a loop feedback circuit, reduces the heating of a power device, and greatly improves the power density of the charger.

The beneficial effects of the above technical scheme are:

the utility model relates to a possible 29W in3 of the maximum power density of many mouthfuls of chargers is equivalent to ordinary adapter, 3 times of charger, and loop feedback circuit is used for controlling the electric current error signal that other circuits generated, can realize the control to the error to reduce the error, in order to reach the purpose of control output frequency or phase place. The efficiency of charger has not only been improved, abandons and possess higher light load efficiency and the energy-conserving effect of more environmental protection.

Example 8:

as shown in fig. 1, the heat sink 8 is connected to the transformer circuit board 1, and is configured to dissipate heat when the USB charger operates.

The working principle and the beneficial effects of the technical scheme are as follows: the utility model relates to a many mouthfuls of chargers works as when the USB charger charges, simultaneously to heat abstractor provides heat radiation power, circular carousel drives the flabellum and operates, and whole flow reduces the too high heat of during operation of charger in the work of charger, reduces the potential safety hazard of charger during operation to installation through the flabellum can reach certain deashing effect.

The working principle and the beneficial effects of the technical scheme are as follows: the utility model relates to a many mouthfuls of chargers, according to rational distribution effectively utilizes the space, improves the space utilization to circuit board with the difference is according to the relation of connection, with certain overall arrangement distribution arrangement, has reduced the volume of charger, improves the power density of charger by a wide margin.

The utility model relates to a method about control all is the existing method among the prior art, the utility model discloses only improve the hardware architecture, do not have any method or computer program that relate to more and improve.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

While the embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields of application suitable for this invention, and further modifications may be readily made by those skilled in the art, and the invention is therefore not limited to the specific details shown and described herein without departing from the general concept defined by the claims and their equivalents.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A multi-port charger is characterized by comprising a transformer circuit board (1), an input rectifier circuit board (2), a filter circuit board (3), an output synchronous rectifier circuit board (4), a TYPE-C1 circuit board (5), a TYPE-C2 circuit board (6), a USB A circuit board (7) and a heat dissipation device (8); wherein the content of the first and second substances,

the input rectifying circuit board (2) is electrically connected with the filter circuit board (3);

the transformer circuit board (1) is electrically connected with the filter circuit board (3) and the output synchronous rectification circuit board (4), the transformer circuit board (1) receives the current filtered by the filter circuit board (3), and the transformer circuit board (1) transmits the filtered current to the output synchronous rectification circuit board (4);

the output synchronous rectification circuit board (4) is respectively electrically connected with the TYPE-C1 circuit board (5), the TYPE-C2 circuit board (6) and the USB A circuit board (7), and synchronously outputs rectification current to the TYPE-C1 circuit board (5), the TYPE-C2 circuit board (6) and the USB A circuit board (7);

the heat dissipation device (8) is electrically connected with the transformer circuit board (1).

2. The multi-port charger according to claim 1, wherein the input rectifying circuit board (2) is fixedly installed at the lower right side of the transformer circuit board (1) and at the right side of the filter circuit board (3), and the input rectifying circuit board (2) is provided with an input rectifying circuit (12).

3. The multiple port charger of claim 1, wherein said filter circuit board (3) is fixedly mounted in the middle of said transformer circuit board (1) and at the right side of said TYPE-C1 circuit board (5) and TYPE-C2 circuit board (6), said filter circuit board (3) having a filter circuit (13) disposed thereon.

4. The multi-port charger according to claim 1, wherein said output synchronous rectification circuit board (4) is fixedly mounted on the left upper side of said transformer circuit board (1), on the upper side of said TYPE-C1 circuit board (5), and on the left side of said heat sink (8), and said filter circuit board (3) is provided with a filter circuit (13).

5. The multi-port charger according to claim 1, wherein said TYPE-C1 circuit board (5) is fixedly installed on the lower left side of said transformer circuit board (1) and is located at TYPE-C2 circuit board (6) and TYPE-C2 on the lower side of USB A circuit board (7), said TYPE-C1 circuit board (5) is provided with TYPE-C1 circuit (15), said TYPE-C2 circuit board (6) is provided with TYPE-C2 circuit (16), said USB A circuit board (7) is provided with USB A circuit (17).

6. The multi-port charger of claim 1, wherein the circuits of TYPE-C1 circuit board (5), TYPE-C2 circuit board (6), and USB a circuit board (7) use the IC protocol; wherein the content of the first and second substances,

the TYPE-C1 charging interface of the TYPE-C1 circuit board (5) and the TYPE-C2 charging interface of the TYPE-C2 circuit board (6) adopt a TYPE C protocol;

the USB-AUSB-A of the USB-AUSB-A circuit board (7) adopts a USB protocol.

7. The multi-port charger of claim 1, wherein said transformer circuit board (1) further comprises a PWM control circuit and a loop feedback circuit; wherein the content of the first and second substances,

the PWM control circuit is connected with an input rectifying circuit (12) of an input rectifying circuit board (2), and acquires the rectified current signal and transmits the rectified current signal to a loop feedback circuit;

8. A multi-port charger as claimed in claim 1, characterized in that said heat dissipating means (8) is connected to said transformer circuit board (1) for dissipating heat when said USB charger is in operation.