CN216852798U

CN216852798U - High-efficient stacked structure of charger circuit board

Info

Publication number: CN216852798U
Application number: CN202220401318.0U
Authority: CN
Inventors: 贺凯建
Original assignee: Shenzhen Maite Power Technology Co ltd
Current assignee: Shenzhen Maite Power Technology Co ltd
Priority date: 2022-02-25
Filing date: 2022-02-25
Publication date: 2022-06-28
Anticipated expiration: 2032-02-25

Abstract

The utility model discloses a high-efficient stacked structure of charger circuit board, include: the power device comprises a main board, a plurality of first high-voltage working devices and first low-voltage working devices are distributed on the upper surface of the main board, power devices are further distributed in the middle of the main board, and a plurality of second high-voltage working devices and second low-voltage working devices are distributed on the lower surface of the main board; the isolation seat is arranged on the upper surface of the mainboard; the first auxiliary board is arranged on the isolation seat, two ends of the first auxiliary board are respectively provided with an alternating current input elastic sheet and are electrically connected with the alternating current input elastic sheet, and the first auxiliary board is also electrically connected with the main board through two PIN PINs penetrating through the isolation seat; the second subplate and the third subplate are respectively vertically and fixedly connected with the two sides of the main board, the tail ends of the second subplate and the third subplate are respectively provided with a first charging port and a second charging port, and the surfaces of the second subplate and the third subplate are respectively provided with a third low-voltage working device. The utility model discloses for the ordinary charger of equal space size, can realize bigger output, effectively improve charge efficiency, and with low costs.

Description

High-efficient stacked structure of charger circuit board

Technical Field

The utility model relates to a charger field especially relates to a high-efficient stacked structure of charger circuit board.

Background

Nowadays, electronic devices with batteries are various, such as mobile phones, notebooks and other electronic products used in daily life, and they are all unable to leave the charging device. Along with the development of the technology, the requirements on the size and the shape of the charging device are higher, the requirements on the power density and the PCBA stacking structure of the charging device are higher, and the requirements on the charging power are higher and higher. In view of the above, the PCBA stacking manner of stacking all components on one PCB by the conventional power supply cannot satisfy the highly personalized customization requirement.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high-efficient stacked structure of charger circuit board for can be applicable to the very harsh wall charging equipment PCBA's of requirement to volume and shape stacking technique, under the condition that uses ordinary conventional electronic components, adopt some special PCB structure stacking technique, with the purpose that reaches low cost, relative high power output, manufacturing installation simple process, make it realize the volume production.

In order to realize the purpose, the following technical scheme is adopted:

an efficient stack structure of charger circuit boards, comprising:

the power device comprises a main board, wherein a plurality of first high-voltage working devices and first low-voltage working devices are distributed on the upper surface of the main board, power devices are further distributed in the middle of the main board, and a plurality of second high-voltage working devices and second low-voltage working devices are distributed on the lower surface of the main board;

the isolation seat is arranged on the upper surface of the mainboard and used for isolating the first high-voltage working device therein;

the first auxiliary board is arranged on the isolation seat, two ends of the first auxiliary board are respectively provided with an alternating current input elastic sheet and are electrically connected with the alternating current input elastic sheet, and the first auxiliary board is also electrically connected with the main board through two PIN PINs penetrating through the isolation seat;

the second auxiliary plate and the third auxiliary plate are respectively and fixedly connected to two sides of the main plate in an erected mode, a first charging port and a second charging port are respectively arranged at the tail ends of the second auxiliary plate and the third auxiliary plate, and third low-voltage working devices are respectively arranged on the surfaces of the second auxiliary plate and the third auxiliary plate.

Furthermore, the second high-voltage working devices on the lower surface of the main board are distributed in the middle of the main board, the second low-voltage working devices are respectively arranged on two sides of the main board, and a first isolation groove, a second isolation groove, a first high-low voltage signal connector and a second high-low voltage signal connector are respectively arranged between the area where the second high-voltage working devices are respectively arranged on the lower surface of the main board and the area where the second low-voltage working devices are respectively arranged.

Further, the isolation seat is made of plastic.

Further, the second sub-board and the third sub-board are respectively connected with the main board through an L-shaped connector.

Furthermore, the bottom of the second auxiliary plate and the bottom of the third auxiliary plate are respectively provided with a connecting part, and two sides of the main plate are respectively provided with a positioning hole matched with the connecting parts.

Furthermore, the second subplate and the third subplate are respectively provided with a spacing piece for fixing the edges of the two sides of the main board.

Further, the isolation piece and the isolation seat are integrally formed.

Adopt above-mentioned scheme, the beneficial effects of the utility model are that:

the use of this stacked structure for the ordinary charger of equal space size, can realize bigger output, effectively improve charge efficiency, and with low costs, only increase first subplate, second subplate and second subplate, just can realize output's increase. The production process is simple, and the installation of each part can be completed by the conventional wave soldering tin at present without additional cost.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic perspective view of an embodiment of the present invention;

fig. 2 is a schematic structural view of the isolation seat removed according to the embodiment of the present invention;

fig. 3 is a schematic top view of an embodiment of the present invention;

fig. 4 is a schematic perspective view of an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a second auxiliary board according to an embodiment of the present invention.

Wherein the figures identify the description:

1. a main board; 11. a first high-voltage operating device; 12. a first low-voltage operating device; 13. a power device; 14. a second high-voltage operating device; 15. a second low-voltage operating device; 16. a first isolation trench; 17. a second isolation trench; 18. a first high-low voltage signal connector; 19. a second high-low voltage signal connector; 110. positioning holes; 2. an isolation seat; 21. a spacer; 3. a first sub-panel; 31. an alternating current input elastic sheet; 32. a PIN needle; 4. a second sub-panel; 41. a first charging port; 42. a connecting portion; 5. a third sub-panel; 51. a second charging port; 52. a third low-voltage operating device; 6. an L-shaped connector.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of 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 intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

It should be noted that the terms of orientation such as outside, inside, middle and the like in the embodiments of the present invention are only relative concepts or reference to the normal use state of the product, and should not be considered as limiting.

Referring to fig. 1 to 3, an efficient stacking structure of a charger circuit board includes:

an efficient stack structure of charger circuit boards, comprising:

the power device comprises a main board 1, wherein a plurality of first high-voltage working devices 11 and first low-voltage working devices 12 are distributed on the upper surface of the main board 1, a power device 13 is also distributed in the middle of the main board 1, and a plurality of second high-voltage working devices 14 and second low-voltage working devices 15 are distributed on the lower surface of the main board 1; the isolation seat 2 is arranged on the upper surface of the mainboard 1 and used for isolating the first high-voltage working device 11 therein; the first auxiliary board 3 is arranged on the isolation seat 2, two ends of the first auxiliary board 3 are respectively provided with an alternating current input elastic sheet 31 and are electrically connected with the alternating current input elastic sheet 31, and the first auxiliary board 3 is also electrically connected with the main board 1 through two PIN PINs 32 penetrating through the isolation seat 2; the main board 1 is provided with a first charging port 41 and a second charging port 51 at the tail ends of the second sub-board 4 and the third sub-board 5, and a third low-voltage working device 52 is arranged on the surfaces of the second sub-board 4 and the third sub-board 5.

It should be noted that, in order to adapt to the position of ac input, the ac line L/N needs to be separated between the left and right sides of the motherboard 1, in this example, the ac input elastic sheet 31 is disposed at the high place, i.e., the isolation seat 2, and then the ac circuit L/N is changed to a position beneficial to the layout of devices on the motherboard 1 through the metal PIN 32, thereby avoiding the use of devices with special processes (such as capacitors, fuses, transformers, etc. which are small in size but relatively high in cost), and effectively reducing the overall cost. And the problem of EMI consistency caused by the fact that the position of the flexible conducting wire is not fixed is avoided, and the quality of mass production is improved.

In an exemplary embodiment, the first high-voltage operating device 11 may include one or more of a high-voltage electrolytic capacitor, a differential mode inductor, a voltage dependent resistor, and a transformer, the first low-voltage operating device 12 may include a low-voltage solid electrolytic capacitor, the second high-voltage operating device 14 may include one or more of a main switch control chip, a bridge stack, a chip capacitor, a chip diode, and a Y capacitor, and the second low-voltage operating device 15 may include one or more of a synchronous rectification control chip, an optical coupler, and a chip capacitor.

In an embodiment, please refer to fig. 3, the second high-voltage operating devices 14 on the lower surface of the main board 1 are distributed in the middle of the main board, the second low-voltage operating devices 15 are respectively arranged on two sides of the main board, and a first isolation slot 16, a second isolation slot 17, a first high-low voltage signal connector 18 and a second high-low voltage signal connector 19 are respectively arranged between the area of the lower surface of the main board 1 where the second high-voltage operating devices 14 are respectively arranged and the area of the lower surface of the main board 1 where the second low-voltage operating devices 15 are respectively arranged. Wherein the first isolation groove 16 and the second isolation groove 17 can be used for inserting a plastic sheet so as to realize electrical isolation between the second high-voltage operating device 14 and the second low-voltage operating device 15.

In one embodiment, the isolation seat 2 is a plastic part. Plays the role of isolation.

In one embodiment, as shown in fig. 4, the second sub-board 4 and the third sub-board 5 are connected to the main board 1 by L-shaped connectors 6, respectively. The L-shaped connector 6 is connected by pluggable connection and is used for power transmission and signal transmission, so that the production process and final installation are more flexible, and the labor cost is reduced

In one embodiment, as shown in fig. 3 and 5, the second sub-plate 4 and the third sub-plate 5 are respectively provided with a connecting portion 42 at the bottom thereof, and the main plate 1 is respectively provided with positioning holes 110 at both sides thereof for engaging with the connecting portions 42. So that the second sub-board 4 and the third sub-board 5 can be more stably provided on the main board 1.

In one embodiment, with reference to fig. 4, the second sub-plate 4 and the third sub-plate 5 are respectively provided with a spacer 21 for fixing two side edges thereof at the connection with the main plate 1. And realizing electrical isolation.

As a supplement, the spacers 21 are integrally formed with the spacer 2. So that the isolating piece 21 and the isolating seat 2 share one set of die, and the die cost is reduced.

Description of the principle: in the equipment the utility model discloses during, earlier with mainboard 1, first subplate 3, the vice board 4 of second, on the vice board 5 of third corresponding components and parts one-by-one welding, on installation isolation seat 2 to mainboard 1, fix first subplate 3 on isolation seat 2, insert vice board 4 of second and the vice board 4 of second respectively in mainboard 1's both sides again, be connected with vice board 4 of second and the vice board 4 of second respectively at L type connector 6. Because of the high power requirement of the charger, the first high-voltage working device 11, the first low-voltage working device 12 and the power device 13 need to be arranged in large size and height, generally, a large capacitor, a piezoresistor, a coil and the like, and the first high-voltage working device, the piezoresistor, the coil and the like are arranged on the upper surface of the mainboard 1, so that a centralized effect can be achieved, the space is saved to a large extent, and meanwhile, for the stability and the safety of a circuit, the isolation seat 2 is arranged to wrap the first high-voltage working device 11 therein, so that electrical isolation is achieved. The second high-voltage working device 14 and the second low-voltage working device 15 arranged on the lower surface of the main board 1 are generally devices such as a main switch control chip and a resistor, the height of the devices is not high, but the occupied area is large, so that the devices are intensively arranged on the lower surface of the main board 1, and the space utilization rate inside the charger can be effectively improved.

Has the advantages that: the utility model discloses a stacked structure's use can realize bigger output for the ordinary charger of equal space size, effectively improves charge efficiency, and with low costs, only increases first subplate, second subplate and second subplate, just can realize output's increase. The production process is simple, and the installation of each part can be completed by the conventional wave soldering tin at present without additional cost.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A high-efficient stacked structure of charger circuit board, characterized by includes:

2. The efficient stacking structure of charger circuit boards as claimed in claim 1, wherein the second high voltage operating devices are distributed at the middle of the lower surface of the main board, the second low voltage operating devices are respectively at both sides of the lower surface of the main board, and a first isolation groove, a second isolation groove, a first high-low voltage signal connector and a second high-low voltage signal connector are respectively disposed between the region of the lower surface of the main board where the second high voltage operating devices are respectively located and the region of the lower surface of the main board where the second low voltage operating devices are respectively located.

3. The efficient stacking structure of charger circuit boards as claimed in claim 1, wherein the spacer is a plastic member.

4. The efficient stacking structure of charger circuit boards as claimed in claim 1, wherein the second sub board and the third sub board are connected to the main board by L-shaped connectors, respectively.

5. The efficient stacking structure of circuit boards of chargers according to claim 4, wherein the second sub board and the third sub board are respectively provided with a connecting portion at the bottom, and the main board is respectively provided with positioning holes at both sides thereof for matching with the connecting portions.

6. The efficient stacking structure of circuit boards of chargers according to claim 1, wherein the joints of the second and third sub boards and the main board are respectively provided with a spacer, and fixing grooves for fixing the two side edges of the second and third sub boards are respectively provided on two of the spacers.

7. The efficient stacking structure of charger circuit boards as claimed in claim 6, wherein the spacer is integrally formed with the spacer.