CN106028646A - PCB board assembly and its adapter and mobile terminal - Google Patents

Abstract

The invention discloses a PCB assembly, an adapter with the same and a mobile terminal, wherein the PCB assembly comprises: the first plate body is provided with a strong current module; the second plate body is provided with a weak current module, the second plate body is inserted on the first plate body and is electrically connected with the first plate body, and at least part of the second plate body is vertical to the first plate body. According to the PCB assembly, the devices and the wires in the weak current module of the second plate body can effectively avoid the devices and the wires in the strong current module of the first plate body, so that the interference of the strong current signal in the first plate body on the weak current signal in the second plate body is effectively avoided, the performance of the weak current module is improved, the weak current module is safe and reliable, and the performance and the reliability of the PCB assembly are improved. In addition, the area of the first plate body is effectively reduced, and the cost of the PCB assembly is saved.

Description

PCB board assembly and its adapter and mobile terminal

technical field

The invention relates to the technical field of electrical appliances, in particular to a PCB board assembly, an adapter having the same, and a mobile terminal.

Background technique

In the related art, an adapter or a mobile terminal usually includes a high-current module and a weak-current module such as a control circuit, and the two parts of the circuit are designed on the same PCB board (PCB is an abbreviation of "Printed Circuit Board", and the Chinese name is a printed circuit board). In this case, the components and traces of the strong and weak circuits are intertwined, which may easily cause the two circuits to interfere with each other. For example, the control circuit is a weak current module. It will be interfered by the strong current module, which will affect the performance of the control circuit, and then affect the performance of the adapter or mobile terminal.

Contents of the invention

The present invention aims to solve one of the technical problems in the related art at least to a certain extent. Therefore, an object of the present invention is to provide a PCB board assembly, the interference between the high-current module and the weak-current module of the PCB board assembly is small and the stability is good.

Another object of the present invention is to provide an adapter with the above-mentioned PCB board assembly.

Another object of the present invention is to provide a mobile terminal having the above-mentioned PCB board assembly.

The PCB board assembly according to the first aspect of the present invention includes: a first board body, the first board body has a high current module; at least one second board body, the second board body has a weak current module, and the first board body has a weak current module. The second board is plugged on the first board and electrically connected to the first board, and at least part of the second board is perpendicular to the first board.

According to the PCB assembly of the present invention, by plugging the second board onto the first board and electrically connecting the second board to the first board, the devices and circuits in the weak current module of the second board The line can effectively avoid the devices and wiring in the high-current module of the first board, thereby effectively avoiding the interference caused by the strong current signal in the first board to the weak current signal in the second board, and improving The performance of the weak current module is improved, making the weak current module safe and reliable, thereby improving the performance and reliability of the PCB board assembly. In addition, the area of the first board body is effectively reduced, saving the cost of the PCB board assembly.

In addition, the PCB board assembly according to the present invention can also have the following additional technical features:

According to some embodiments of the present invention, an insertion hole is formed on the first board, and an insertion pin corresponding to the insertion hole is provided on the second board.

Specifically, the insertion hole is formed as a through circular hole, and the longitudinal section of the insertion pin is formed as a rectangle.

According to some embodiments of the present invention, the inner diameter of the insertion hole is D, the width of the insertion pin is A, and the D and A satisfy: A<D.

Specifically, the D and the A satisfy: D-A≥0.2mm.

Optionally, the inner diameter D of the insertion hole satisfies: 1mm≤D≤1.2mm.

According to some embodiments of the present invention, the width A of the plug pin satisfies: 0.8mm≤A≤1mm.

According to some embodiments of the present invention, there are multiple plug pins, and the distance between two adjacent plug pins is B, and the B satisfies: 1.8mm≤B≤2mm.

According to some embodiments of the present invention, the thickness of the first board is W, the length of the plug pin is L, and the W and the L satisfy: L≤W.

The adapter according to the second aspect of the present invention includes the PCB board assembly according to the above-mentioned first aspect of the present invention.

The adapter according to the third aspect of the present invention includes the PCB board assembly according to the above-mentioned first aspect of the present invention.

Additional aspects 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 practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and comprehensible from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is a schematic structural view of a PCB assembly according to an embodiment of the present invention;

Fig. 2 is a schematic structural view of the first plate body shown in Fig. 1;

FIG. 3 is a schematic structural diagram of the second board shown in FIG. 1 .

Reference signs:

PCB board assembly 100,

The first board body 1, the insertion hole 11,

The second board body 2 is plugged with pins 21 .

detailed description

Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

In describing the present invention, it should be understood that the terms "length", "width", "thickness", "upper", "lower", "vertical", "horizontal", "axial", "radial ", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, are constructed and operate in a particular orientation and therefore are not to be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features.

The following describes a PCB board assembly 100 according to an embodiment of the present invention with reference to FIGS. 1-3 . Wherein, the PCB board assembly 100 can be used for an adapter (for example, a fast charging adapter, etc.) or a mobile terminal (for example, a mobile phone, a tablet computer, etc.) and the like.

As shown in FIG. 1 , the PCB board assembly 100 according to the embodiment of the first aspect of the present invention includes a first board body 1 and at least one second board body 2 . Wherein, there may be one or more second boards 2 . Here, it should be noted that, in the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

Among them, the first board 1 has a high current module, and the second board 2 has a weak current module, that is to say, the first board 1 can be provided with a high current circuit, and the second board 2 can be provided with a weak current circuit. Circuits such as control circuits and the like. The first board body 1 and the second board body 2 are independent PCB boards respectively.

The second board body 2 is plugged on the first board body 1 and electrically connected with the first board body 1 , at least part of the second board body 2 is perpendicular to the first board body 1 . Specifically, when there is one second plate body 2, the second plate body 2 is perpendicular to the first plate body 1; The second plate body 2 may be perpendicular to the first plate body 1 , or all the second plate bodies 2 are perpendicular to the first plate body 1 .

For example, in the example shown in FIG. 1 , the first plate body 1 may extend horizontally, and the second plate body 2 may extend vertically. Thus, the devices and wiring in the weak current module of the second board 2 can effectively avoid the devices and wiring in the high current module of the first board 1, thereby effectively avoiding the The interference caused by the strong current signal to the weak current signal in the second board body 2 improves the performance of the weak current module, making the weak current module safe and reliable, thereby improving the performance and reliability of the PCB board assembly 100 . In addition, the area of the PCB board assembly 100 is effectively reduced, and the cost of the PCB board assembly 100 is saved.

Optionally, the second board body 2 may be welded on the first board body 1 by soldering, but not limited thereto. The process is simple and the processing is convenient.

For example, during assembly, the second board body 2 may be plugged onto the first board body 1 first, and then the second board body 2 is welded to the first board body 1 by soldering. Thus, the electrical connection between the first board body 1 and the second board body 2 can be realized, and the connection between the first board body 1 and the second board body 2 can be made more reliable and stable, thereby improving the reliability of the PCB board. Reliability and stability of the assembly 100.

According to the PCB board assembly 100 of the embodiment of the present invention, by inserting the second board body 2 on the first board body 1 and electrically connecting the second board body 2 to the first board body 1, the second board body 2 The devices and traces in the weak current module can effectively avoid the devices and traces in the high current module of the first board 1, thereby effectively avoiding the impact of the strong current signal in the first board 1 on the second board. The interference caused by the weak current signal in 2 improves the performance of the weak current module, making the weak current module safe and reliable, thereby improving the performance and reliability of the PCB board assembly 100 . In addition, the area of the first board body 1 is effectively reduced, saving the cost of the PCB board assembly 100 .

According to some embodiments of the present invention, an insertion hole 11 is formed on the first board body 1 , and an insertion pin 21 corresponding to the insertion hole 11 is provided on the second board body 2 . The plug pins 21 cooperate with the socket holes 11 to plug the second board 2 onto the first board 1 . Wherein, corresponding signals such as network signals and the like can be connected to the socket holes 11 , and corresponding signals such as control signals and the like can be connected to the socket pins 21 . For example, referring to Fig. 1 and Fig. 2, the first plate body 1 can be generally formed as a rectangular plate-like structure, there can be multiple insertion holes 11, and the plurality of insertion holes 11 can be arranged at intervals along the width direction of the first plate body 1 The insertion hole 11 may be formed as a through hole penetrating through the thickness direction of the first plate body 1 . Referring to FIG. 1 and FIG. 3 , the second board body 2 is generally formed as a rectangular board-like structure, and the plug pins 21 can be arranged at intervals along the length direction of the second board body 2 . The structure is simple and the processing is convenient.

Optionally, the cross-sectional area of the second plate body 2 may be smaller than that of the first plate body 1 , but it is not limited thereto.

According to some specific embodiments of the present invention, the insertion hole 11 may be formed as a through circular hole, and the longitudinal section of the insertion pin 21 is formed as a rectangle. Referring to FIGS. 1-3 , the insertion hole 11 can be formed as a circular through hole penetrating through the thickness direction of the first plate body 1 , and the insertion pin 21 can be formed as a Great Wall-shaped pin. Therefore, the processing technology of the PCB board assembly 100 is greatly simplified, and the processing difficulty is reduced.

According to some embodiments of the present invention, referring to FIG. 2 and FIG. 3 , the inner diameter of the insertion hole 11 is D, the width of the insertion pin 21 is A, and D and A satisfy: A<D. Thus, the second board body 2 can be conveniently inserted into the first board body 1, and it is convenient to apply tin between the insertion hole 11 and the insertion pin 21 to weld the second board body 2 on the first board body. On the body 1, the electrical connection between the first board body 1 and the second board body 2 is realized, thereby improving the performance and reliability of the PCB board assembly 100.

Specifically, the inner diameter D of the insertion hole 11 and the width A of the insertion pin 21 satisfy: D-A≧0.2mm. Its specific value can be adjusted and designed according to the specific model of the PCB board assembly 100 , for example, D and A can satisfy: D-A=0.2mm and so on. Wherein, the distance between the inner wall of the insertion hole 11 and the insertion pin 21 is preferably equal, for example, the single-side distance between the inner wall of the insertion hole 11 and the insertion pin 21 is preferably greater than or equal to 0.1 mm. Thus, the connection between the second plate body 2 and the first plate body 1 can be made more stable and reliable.

According to some specific embodiments of the present invention, the inner diameter D of the insertion hole 11 satisfies: 1mm≤D≤1.2mm. For example, the inner diameter D of the insertion hole 11 may further satisfy: D=1mm, D=1.1mm or D=1.2mm, etc. The width A of the plug pin 21 satisfies: 0.8mm≤A≤1mm. For example, the width A of the plug pin 21 may further satisfy: A=0.8mm, A=0.9mm or A=1.0mm and so on.

Specifically, there are multiple plug pins 21, and the distance between two adjacent plug pins 21 is B, and B satisfies: 1.8mm≤B≤2mm. Its specific value can be adjusted and designed according to the specific specifications and models of the PCB board assembly 100 , for example, the distance B between two adjacent plug pins 21 can further satisfy: B=2mm and so on. There are also multiple insertion holes 11 , and the distance between two adjacent insertion holes 11 is equal to the distance between two adjacent insertion pins 21 . Thus, the structural strength of the first board body 1 and the second board body 2 can be effectively ensured, thereby improving the reliability of the PCB board assembly 100 .

According to some embodiments of the present invention, referring to FIG. 1 in conjunction with FIG. 3 , the thickness of the first board body 1 is W, the length of the plug pin 21 is L, and W and L satisfy: L≤W. That is to say, the length of the plug pin 21 is not greater than the thickness of the first board 1 . Thus, after inserting the socket pin 21 into the socket hole 11, the free end (for example, the lower end in FIG. bottom) surface. Therefore, the space volume of the PCB board assembly 100 can be effectively reduced, the overall occupied space of the PCB board assembly 100 can be saved, and interference between the PCB board assembly 100 and other components can be effectively avoided during use.

According to the PCB board assembly 100 of the embodiment of the present invention, the weak current module is made into a small PCB board (ie, the second board body 2 ), and plugged into the PCB board of the high current module (ie, the first board body 2 ) in a plug-in manner. board 1), and then tinned to achieve interconnection, effectively avoiding the interference caused by the strong current signal in the first board 1 to the weak current signal in the second board 2, and improving the performance of the weak current module. Further, the performance and reliability of the PCB board assembly 100 are improved. In addition, the area of the PCB board (ie, the first board body 1 ) of the high-current module is effectively reduced, and the cost of the PCB board assembly 100 is reduced.

The adapter according to the embodiment of the second aspect of the present invention includes the PCB board assembly 100 according to the embodiment of the first aspect of the present invention. Wherein, the adapter may be a power adapter such as a fast charging adapter, but is not limited thereto.

According to the adapter of the second embodiment of the present invention, by setting the PCB board assembly 100 according to the above-mentioned embodiment of the first aspect of the present invention, the stability and reliability of the performance of the adapter are improved, and the overall performance and quality of the adapter are improved.

The adapter according to the embodiment of the third aspect of the present invention includes the PCB board assembly 100 according to the embodiment of the first aspect of the present invention. Wherein, the mobile terminal may be a mobile phone, a tablet computer, etc., but is not limited thereto.

According to the adapter of the third embodiment of the present invention, the overall performance of the mobile terminal is improved by arranging the PCB board assembly 100 according to the embodiment of the first aspect of the present invention.

In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; can be mechanically connected, can also be electrically connected or can communicate with each other; can be directly connected, can also be indirectly connected through an intermediary, can be the internal communication of two components or the interaction relationship between two components, Unless expressly defined otherwise. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, those skilled in the art can make the above-mentioned The embodiments are subject to changes, modifications, substitutions and variations.

Claims (11)

1. a pcb board assembly, it is characterised in that including:

First plate body, described first plate body has heavy current module；

At least one second plate body, described second plate body has weak current module, and described second plate body is plugged on described first plate Electrically connecting on body and with described first plate body, the most described second plate body is vertical with described first plate body.

Pcb board assembly the most according to claim 1, it is characterised in that be formed with spliced eye on described first plate body, Described second plate body is provided with the inserting foot corresponding with described spliced eye.

Pcb board assembly the most according to claim 2, it is characterised in that the circular port that described spliced eye is formed completely through, The longitudinal cross-section of described inserting foot is formed as rectangle..

Pcb board assembly the most according to claim 3, it is characterised in that the internal diameter of described spliced eye is D, described slotting The width of pin is A, and described D and described A meets: A ＜ D.

Pcb board assembly the most according to claim 4, it is characterised in that described D and described A meets: D-A >=0.2mm.

Pcb board assembly the most according to claim 4, it is characterised in that the internal diameter D of described spliced eye meets: 1mm ≤D≤1.2mm。

Pcb board assembly the most according to claim 4, it is characterised in that the width A of described inserting foot meets: 0.8mm ≤A≤1mm。

Pcb board assembly the most according to claim 2, it is characterised in that described inserting foot is multiple, adjacent two institutes Stating the spacing between inserting foot is B, and described B meets: 1.8mm≤B≤2mm.

Pcb board assembly the most according to claim 2, it is characterised in that the thickness of described first plate body is W, described The a length of L of inserting foot, described W and described L meet: L≤W.

10. an adapter, it is characterised in that include according to the pcb board assembly according to any one of claim 1-9.

11. 1 kinds of mobile terminals, it is characterised in that include according to the pcb board assembly according to any one of claim 1-9.