CN203015291U

CN203015291U - Circuit board

Info

Publication number: CN203015291U
Application number: CN 201220625053
Authority: CN
Inventors: 张焯锋; 吴峰
Original assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd
Current assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd
Priority date: 2012-11-23
Filing date: 2012-11-23
Publication date: 2013-06-19
Anticipated expiration: 2022-11-23

Abstract

The utility model discloses a circuit board comprising a PCB motherboard, a PCB daughter board and at least one connector, wherein the PCB daughter board is horizontally piled up on the PCB motherboard and fixed through the connector, and the PCB daughter board is electrically connected with the PCB motherboard through the connector. Further, the lower surface of the PCB daughter board is tightly attached to the upper surface of the PCB motherboard. The connector comprises an insulation seat fixed on the PCB daughter board and pins including vertical pins and horizontal pins led out from the top ends of the vertical pins. The PCB daughter board is electrically connected with the PCB motherboard through the pins on the connector. The circuit board is short in electrical loop path and small in electromagnetic interference, and effectively reduces space occupied by PCB. Requirement for ultra-thin design of a product can be met through the circuit board, and the production cost of the product can be further lowered.

Description

A kind of circuit board

Technical field

The utility model relates to electronic technology field, relates in particular to a kind of circuit board.

Background technology

PCB is the abbreviation of printed circuit board (PCB) (Printed Circuit Board), and Chinese is called for short circuit board.Electronic equipment in daily life comprises that electronic watch, calculator, computer, communication electronic equipment etc. nearly all be unable to do without PCB.PCB can be used for realizing the electrical connection between integrated circuit (IC) system electronic devices and components in various electronic equipments, or for integrated circuit (IC) system provides desired electrical characteristic, as characteristic impedance etc.

Along with the requirement of miniaturization of electronic products is more and more higher, the PCB size has become a very important research topic.In order to reduce area, PCB to double sided board, then develops into multi-layer sheet from initial single sided board.Along with the increase gradually of the number of plies of pcb board, also the improving constantly of the complexity of integrated circuit (IC) system, too much there is the defective that is difficult to overcome in the circuit board of the number of plies, and as serious in electromagnetic interference, intermediate layer is difficult to carry out components and parts package layout etc.Monolithic PCB has been difficult to satisfy the designing requirement of day by day complicated product systems function.

In the design process of a product, described product is is often connected and composed by polylith PCB, and the syndeton of each piece PCB or mode are different, and PCB area or volume that it is shared will have greatest differences.

For saving the PCB space, satisfy the needs of product miniaturization, and facilitate the design of product allomeric function and perfect, the electrical connection scheme of studying two or more than two PCB becomes very necessary.

In prior art, when two PCB were electrically connected to, the usual manner that namely physically two PCB is coupled together on circuit was: the electric connecting terminal of a PCB vertically is plugged in suitable slot on another piece PCB.Realize that the parts that are electrically connected to generally include public connector and female connectors, wherein, public connector is actually exposed metal patch at a PCB plug-in position or contact pin, female connectors is actually the metal patch that is built in another piece PCB slot, and these metal patches or contact pin also belong to the part of PCB layout.In computer, display card, other similar interface card such as sound card is to be electrically connected to mainboard by similar vertical mode mostly.

The vertical connected mode of this PCB of the prior art, its advantage is facilitate the plug of PCB and reduce electromagnetic interference, its shortcoming is that taking up room of the circuit board built of two PCB is larger, be not suitable for the instructions for use in less space or special " narrow space ", and the electrical connection of two PCB depends on the mutual coupling of public connector and female connectors usually and good physical contact could be realized, reliability is lower.

Also there is the solution of two PCB of a kind of parallel installation in prior art, but in this scheme, connector used only is used for fixing the relative position of two PCB usually, and do not fit tightly between two PCB, also leave a fixed gap in the middle of both, even also be packaged with various electronic components, make electromagnetic interference (the Electro Magnetic Interference of whole circuit board, be called for short EMI) stronger, and the space utilization of circuit board can not get optimization.

Summary of the invention

Technical problem to be solved in the utility model is, a kind of circuit board is provided, in the situation that satisfy electric linkage function, make two or more than two the syndeton of PCB more simple, stable, reliable, that whole circuit board takes up room is less, cost is lower.

For convenience of description, the larger circuit board of area in any two circuit boards is called the PCB motherboard, the circuit board that area is less is called the PCB daughter board.

For solving above technical problem, the utility model provides a kind of circuit board, comprises PCB motherboard, PCB daughter board and at least one connector;

Described PCB daughter board level overlays the top of described PCB motherboard, and is fixed by described connector;

Described PCB daughter board also is electrically connected to described PCB motherboard by described connector.

Further, the lower surface of described PCB daughter board is close to the upper surface of described PCB motherboard.

Further, described connector comprises insulating base and contact pin;

Described insulating base is fixed on described PCB daughter board; Be provided with pin hole on described insulating base;

Described contact pin comprises vertical needle, and the horizontal pin of drawing from the top of described vertical needle; Described horizontal pin is welded on described PCB daughter board; Described vertical needle is plugged in described pin hole, extends to described PCB motherboard from described PCB daughter board;

Described PCB daughter board is electrically connected to described PCB motherboard by the contact pin in described connector.

Preferably, described PCB motherboard is single sided board.Described PCB daughter board is double sided board or multi-layer sheet.

Implement the utility model, the PCB motherboard in described circuit board and PCB daughter board level are fitted tightly, fix position and electrical connection by connector, make taking up room of whole circuit board be under control; And described PCB motherboard can further adopt single sided board design, to save the board production cost; Further, described PCB daughter board can adopt double sided board or multi-layer sheet to carry out the standardized module design of large scale integrated circuit, to increase or to improve the function of whole circuit board.In a word, circuit board provided by the utility model is the whole height of control circuit board effectively, and the electric loop path is shorter, and electromagnetic interference and electrical Interference are less, is applicable to the ultrathin design of product, and can further reduce the production cost of circuit board.

Description of drawings

Fig. 1 is the cutaway view of the first embodiment of the circuit board that provides of the utility model;

Fig. 2 is the cutaway view of the second embodiment of the circuit board that provides of the utility model;

Fig. 3 is the front elevation of the connector described in the second embodiment of providing of Fig. 2;

Fig. 4 is the end view of the connector that provides of Fig. 3;

Fig. 5 is the vertical view of the connector that provides of Fig. 3;

Fig. 6 is the perspective view of the circuit board that provides of Fig. 2.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described.

For ease of describing, the circuit board that area is larger is called the PCB motherboard, and the circuit board that area is less is called the PCB daughter board.

Referring to Fig. 1, it is the cutaway view of the first embodiment of the circuit board that provides of the utility model.

In the first embodiment, described circuit board comprises PCB motherboard 100, PCB daughter board 200 and at least one connector 300.

Described PCB daughter board 200 levels overlay the top of described PCB motherboard 100, and are fixed by described connector 300.

Described PCB daughter board 200 also is electrically connected to described PCB motherboard 100 by described connector 300.

During concrete enforcement, can be provided with the common function module of circuit board on described PCB motherboard 100, can be provided with a certain certain functional modules of circuit board on described PCB daughter board 200, by connector 300, described PCB daughter board 200 is fixed on described PCB motherboard 100, and realize being electrically connected to of described PCB daughter board 200 and described PCB motherboard 100, to consist of the systemic-function of whole circuit board.

Further, the lower surface of described PCB daughter board 200 is close to the upper surface of described PCB motherboard 100.

Need to prove, during concrete enforcement, the upper surface of described PCB motherboard 100 is provided with the stack zone corresponding with described PCB daughter board 200, and the electronic component on PCB daughter board 200 only is arranged on the upper surface of himself, can see described PCB daughter board 200 as a function element, and its level overlays PCB motherboard 100 upper surfaces, thereby, the lower surface of described PCB daughter board 200 can be close to the upper surface of described PCB motherboard 100, realizes the space utilization optimization of described circuit board.

Referring to Fig. 2, it is the cutaway view of the second embodiment of the circuit board that provides of the utility model.

In a second embodiment, as preferred implementation, described connector 400 comprises insulating base 410 and contact pin 420.

Described insulating base 410 is fixed on described PCB daughter board 200; Be provided with pin hole on described insulating base 410.

Described contact pin 420 comprises vertical needle 421, and the horizontal pin 422 of drawing from the top of described vertical needle 421; Described horizontal pin 422 is welded on described PCB daughter board 200; Described vertical needle 421 is plugged in described pin hole, extends to described PCB motherboard 100 from described PCB daughter board 200.

Described PCB daughter board 200 is electrically connected to described PCB motherboard 100 by the contact pin 420 in described connector 400.

In the concrete practice process, described vertical needle 421 extends to described PCB motherboard 100 from described PCB daughter board 200, its effect is that PCB daughter board 200 is fixed on described PCB motherboard 100, and be that described PCB daughter board 200 and described PCB motherboard 100 are set up electrical connection, be and both transmit the corresponding signal of telecommunication.

Referring to Fig. 3 ~ Fig. 5, be the concrete structure figure of connector 400.Wherein, Fig. 3 is the front elevation of the connector 400 in the circuit board that provides in the present embodiment; Fig. 4 is the end view of the connector 400 that provides of Fig. 3; Fig. 5 is the vertical view of the connector 400 that provides of Fig. 3.

During concrete enforcement, it is crooked that contact pin 420 is 90 degree, can see rectangular shaped as, and the two ends of contact pin 420 is orthogonal, is called vertical needle 421 and horizontal pin 422.Wherein, be plugged in the pin hole that arranges on insulating base 410, and an end that extends between PCB motherboard 200 from PCB daughter board 100 is vertical needle 421; The other end is the horizontal pin 422 from the Base top contact of vertical needle 421, and its horizontal welding is connected on PCB daughter board 200.

As preferred implementation, on the insulating base 410 of connector 400, both sides are provided with two row's pin holes, are plugged with described contact pin 420 on described pin hole.During concrete enforcement, the quantity of described pin hole and contact pin 420 arranges according to side circuit design needs.

Further, described PCB motherboard 100 is single sided board.

During concrete enforcement, the upper surface of described PCB motherboard 100 is solders side, and namely circuit lead centralized layout is at the upper surface of described PCB motherboard 100, and PCB daughter board 200 is electrically connected to PCB motherboard 100 by the contact pin 420 in connector 400.The vertical needle 421 of described contact pin 420 is plugged in the pin hole of insulating base 410, and it extends to the upper surface of described PCB motherboard 100 from described PCB daughter board 200.By this connector 400, PCB daughter board 200 can be fixed in the respective regions on the PCB motherboard, and realize being electrically connected to of PCB daughter board 200 and motherboard 100.Described PCB motherboard 100 adopts single sided board to design, and can effectively reduce the production cost of circuit board.

Further, described PCB daughter board 200 is double sided board or multi-layer sheet.

During concrete enforcement, PCB daughter board 200 adopts double sided board or multi-layer sheet to carry out modularized design, can satisfy separately the several functions design requirement in practical application.The user can be designed to various standard feature modules with the PCB daughter board according to concrete application needs, the actual and saving development resources with effective saving circuit board exploitation.

Referring to Fig. 6, it is the perspective view of the circuit board that provides of Fig. 2.

During concrete enforcement, the user can adopt appropriate connector 400 according to the practical application needs, described PCB daughter board 200 is fixed on PCB motherboard 100, and is electrically connected to for both setting up.

Further, be provided with electronic component on described PCB motherboard 100.

Need to prove, except corresponding with described PCB daughter board 200 zone that stacks of leaving on PCB motherboard 100, other zones on described PCB motherboard 100 also are packaged with other electron component usually, to realize the integral product function of circuit board.

Further, be provided with surface mount elements on described PCB daughter board 200; Described surface mount elements comprises the paster interface element.

In specific implementation process, when PCB daughter board 200 carries out modularized design, for realizing its independently functions of modules and the further whole height of reduction circuit board, be provided with surface mount elements on described PCB daughter board 200, and when specifically implementing, described surface mount elements all is encapsulated in the upper surface of PCB daughter board 200; And described surface mount elements comprises the paster interface element, is connected communication to realize it with external devices.

The circuit board that the utility model embodiment provides fits tightly PCB motherboard and PCB daughter board level, and realizes that by connector the position fixes and be electrically connected to, and the integral body that has reduced circuit board takes up room.Described PCB motherboard can further adopt single sided board design, to save the production cost of circuit board; Described PCB daughter board can be double sided board or multi-layer sheet, to be applicable to the standardized module design of large scale integrated circuit.In brief, the electric loop path of the circuit board that the utility model embodiment provides is shorter, and electromagnetic interference and electrical Interference are less, and the integral body that can effectively reduce circuit board takes up room, be applicable to the ultrathin design of product, and further reduce the production cost of product.

The above is preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also are considered as protection range of the present utility model.

Claims

1. at a kind of circuit board, it is characterized in that, comprise PCB motherboard, PCB daughter board and at least one connector;

2. circuit board as claimed in claim 1, is characterized in that, the lower surface of described PCB daughter board is close to the upper surface of described PCB motherboard.

3. circuit board as claimed in claim 2, is characterized in that, described connector comprises insulating base and contact pin;

4. circuit board as claimed in claim 3, is characterized in that, described PCB motherboard is single sided board.

5. circuit board as claimed in claim 3, is characterized in that, described PCB daughter board is double sided board or multi-layer sheet.

6. circuit board as described in claim 1 ~ 5 any one, is characterized in that, is provided with electronic component on described PCB motherboard.

7. circuit board as claimed in claim 6, is characterized in that, is provided with surface mount elements on described PCB daughter board; Described surface mount elements comprises the paster interface element.