CN212727543U

CN212727543U - Circuit board assembly and electronic product

Info

Publication number: CN212727543U
Application number: CN202022031870.9U
Authority: CN
Inventors: 陈乐华
Original assignee: Shanghai Wingtech Electronic Technology Co Ltd
Current assignee: Wentai Technology (Shenzhen) Co.,Ltd.
Priority date: 2020-09-16
Filing date: 2020-09-16
Publication date: 2021-03-16
Anticipated expiration: 2030-09-16

Abstract

The application provides a circuit board assembly and an electronic product, and relates to the technical field of electronic products. The circuit board assembly comprises a circuit board, at least two electronic modules and at least two shielding cases; the electronic modules are arranged on the circuit board, and each shielding case is used for covering one electronic module. The at least two shielding cases comprise a first shielding case and a second shielding case, the first shielding case comprises a first side wall, a first bayonet and a first clamping block are arranged on the first side wall, the second shielding case comprises a second side wall, and a second bayonet and a second clamping block are arranged on the second side wall; the first clamping block is clamped in the second bayonet, and the second clamping block is clamped in the first bayonet. The area of the circuit board occupied by the shielding cover can be reduced, and the utilization rate of the circuit board is improved.

Description

Circuit board assembly and electronic product

Technical Field

The utility model relates to an electronic product technical field particularly, relates to a circuit board assembly and electronic product.

Background

The circuit board may be referred to as a printed wiring board or a printed circuit board, and in electronic products, the circuit board serves as a mounting carrier for an electronic module. Generally, a plurality of electronic modules are mounted on a circuit board, each electronic module generates electromagnetic interference in the working process, and in order to prevent mutual electromagnetic influence of the plurality of electronic modules in the working process, a shielding case is arranged on each electronic module to realize electromagnetic shielding so as to reduce the electromagnetic interference.

At present, the interval sets up between a plurality of shield covers, can leave the clearance between the lateral wall of two adjacent shield covers promptly, and this section clearance can not by make full use of, causes the usable area of circuit board to reduce, if the quantity that the shield cover set up is more, and the area of wasting on the circuit board can be bigger, leads to the utilization ratio of circuit board to be lower. The electronic product formed by the assembly has large volume and mass.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a circuit board assembly can reduce the area that the shield cover occupy on the circuit board, improves the utilization ratio of circuit board to in more electronic module of integration on the circuit board of equal area.

An object of the utility model is to provide an electronic product, it includes foretell circuit board subassembly, can make the shield cover structure compacter, increases the usable area on the circuit board, and the electronic product integrated level is high, and is small, the quality is light.

The embodiment of the utility model is realized like this:

in a first aspect, an embodiment of the present invention provides a circuit board assembly, which includes a circuit board, at least two electronic modules, and at least two shielding cases; the electronic modules are arranged on the circuit board, and each shielding case is used for covering one electronic module;

the at least two shielding cases comprise a first shielding case and a second shielding case, the first shielding case comprises a first side wall, a first bayonet and a first clamping block are arranged on the first side wall, the second shielding case comprises a second side wall, and a second bayonet and a second clamping block are arranged on the second side wall; the first clamping block is clamped in the second bayonet, and the second clamping block is clamped in the first bayonet.

In an optional embodiment, the first fixture block and the second fixture block abut against each other, and the first fixture block and the second fixture block are located on the same straight line.

In an alternative embodiment, the first fixture block includes a first end surface close to the first bayonet, the second fixture block includes a second end surface close to the second bayonet, and the first end surface and the second end surface abut.

In an alternative embodiment, the first fixture block includes a first side surface and a second side surface that are oppositely disposed, and the first side surface and the second side surface are connected through the first end surface;

the second fixture block comprises a third side surface and a fourth side surface which are oppositely arranged, and the third side surface and the fourth side surface are connected through the second end surface;

the first side face and the third side face are located on the same plane, and the second side face and the fourth side face are located on the same plane.

In an alternative embodiment, the length of the first bayonet is equal to the length of the second latch.

In an alternative embodiment, the length of the second bayonet is equal to the length of the first latch.

In an optional embodiment, a plurality of first bayonets and a plurality of first blocks are arranged on the first side wall at intervals, and the first bayonets and the first blocks are alternately arranged;

the second side wall is provided with a plurality of second bayonets and a plurality of second fixture blocks at intervals, the second bayonets and the second fixture blocks are alternately arranged, each first fixture block is clamped into one second bayonet, and each second fixture block is clamped into one first bayonet.

In an optional embodiment, the first shielding case further includes a first bottom wall connected to the first side wall, and the first bayonet penetrates through the first side wall and opens onto the first bottom wall;

the second shielding case further comprises a second bottom wall connected with the second side wall, and the second bayonet penetrates through the second side wall and is arranged on the second bottom wall.

In an alternative embodiment, the shield further comprises a third shield comprising a third sidewall, the first shield comprising two of the first sidewalls; one of the first side walls is clamped with the second side wall of the second shielding case;

a third bayonet and a third fixture block are arranged on the third side wall, and a fourth bayonet and a fourth fixture block are arranged on the other first side wall; the third clamping block is clamped in the fourth bayonet, and the fourth clamping block is clamped in the third bayonet.

In a second aspect, an embodiment of the present invention provides an electronic product, including the circuit board assembly according to any one of the foregoing embodiments. The circuit board assembly comprises a circuit board, at least two electronic modules and at least two shielding cases; the electronic modules are arranged on the circuit board, and each shielding case is used for covering one electronic module;

The embodiment of the utility model provides a pair of circuit board assembly and electronic product, its beneficial effect includes:

the embodiment of the utility model provides a circuit board assembly, be equipped with first bayonet socket and first fixture block on the first lateral wall of first shield cover, be equipped with second bayonet socket and second fixture block on the second lateral wall of second shield cover; the first clamping block is clamped in the second bayonet, and the second clamping block is clamped in the first bayonet. Like this, effectively reduced the clearance between two shield covers, left more available spaces for the circuit board, the shared circuit board's of significantly reduced shield cover space improves the integrated level of circuit board.

The embodiment of the utility model provides an electronic product, including foretell circuit board subassembly, the space utilization of circuit board is higher, can integrate more electronic module, and the electronic product volume of assembling out like this is littleer, and the quality is lighter, is favorable to the lightweight design of electronic product.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a view angle of a circuit board assembly according to a first embodiment of the present invention;

fig. 2 is a schematic structural diagram of a first shielding case of a circuit board assembly according to a first embodiment of the present invention;

fig. 3 is a schematic structural diagram of another view angle of the first shielding cover of the circuit board assembly according to the first embodiment of the present invention;

fig. 4 is a schematic structural diagram of a view angle of a second shielding case of a circuit board assembly according to a first embodiment of the present invention;

fig. 5 is a schematic structural diagram illustrating a first shielding cover and a second shielding cover of a circuit board assembly according to a first embodiment of the present invention being engaged with each other;

fig. 6 is a schematic structural diagram illustrating a first shielding cover and a second shielding cover of a circuit board assembly according to a second embodiment of the present invention being engaged with each other;

fig. 7 is a schematic structural diagram of a first shielding case of a circuit board assembly according to a third embodiment of the present invention;

fig. 8 is a schematic structural diagram of a first shield, a second shield, and a fourth shield snap-fit of a circuit board assembly according to a third embodiment of the present invention.

Icon: 100-a circuit board assembly; 110-a first shield; 120-a second shield; 130-a circuit board; 111-a first side wall; 112-a first fixture block; 113-a first bayonet; 114-a first bottom wall; 115-shielded space; 116-a fourth cartridge; 117-fourth bayonet; 121-a second sidewall; 122-a second cartridge; 123-a second bayonet; 124-a second bottom wall; 101-a first end face; 102-a second end face; 103-a first side; 104-a second side; 105-a third side; 106-fourth side; 131-a third side wall; 132-third latch.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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 should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

First embodiment

Referring to fig. 1 to 5, the present embodiment provides a circuit board assembly 100, which includes a circuit board 130, at least two electronic modules, and at least two shielding cases; the electronic modules are disposed on the circuit board 130, and each of the shields is configured to cover one of the electronic modules. The at least two shielding cases comprise a first shielding case 110 and a second shielding case 120, the first shielding case 110 comprises a first side wall 111, the first side wall 111 is provided with a first bayonet 113 and a first clamping block 112, the second shielding case 120 comprises a second side wall 121, and the second side wall 121 is provided with a second bayonet 123 and a second clamping block 122; the first latch 112 is retained in the second latch 123, and the second latch 122 is retained in the first latch 113. Through mutually block first lateral wall 111 with first shield cover 110 and second lateral wall 121 of second shield cover 120, can reduce the distance between two shield covers to make first shield cover 110 and second shield cover 120 area that occupies on circuit board 130 littleer, improve circuit board 130's area utilization.

Further, the first latch 112 and the second latch 122 abut against each other, and the first latch 112 and the second latch 122 are located on the same straight line. By the arrangement, the first latch 112 and the second latch 122 jointly form a shielding rib, and the width of the shielding rib is the width of the first latch 112 or the width of the second latch 122. That is, after the first latch 112 and the second latch 122 are latched, the area occupied by the shielding rib on the circuit board 130 is only the area occupied by the first sidewall 111 or the area occupied by the second sidewall 121 before improvement. It will be readily appreciated that the area not available on the circuit board 130 prior to modification includes at least the area occupied by the first sidewall 111, the area occupied by the second sidewall 121, and the area occupied by the space between the first sidewall 111 and the second sidewall 121. Through the improvement, the occupied area of the gap between the first side wall 111 and the second side wall 121 is eliminated, and the occupied area of the first side wall 111 and the second side wall 121 is also reduced by half, so that the occupied area of the circuit board 130 by the shielding case is reduced, the available area of the circuit board 130 is greatly increased, and the improvement of the integration level of the circuit board 130 is facilitated. Through the clamping of the first side wall 111 and the second side wall 121, the electromagnetic shielding effect of the two electronic modules can be realized, electromagnetic signals in the working process are not interfered with each other, and the occupied space of the first shielding case 110 and the second shielding case 120 is saved.

In detail, in the present embodiment, the number of the first latch 112 is one, the number of the first notch 113 is one, and the sum of the length of the first latch 112 and the length of the first notch 113 is the length of the first sidewall 111. Similarly, the number of the second latch 122 is one, the number of the second bayonet 123 is one, and the sum of the length of the second latch 122 and the length of the second bayonet 123 is the length of the second side wall 121. The first fixture block 112 comprises a first end surface 101 close to the first bayonet 113 and the second fixture block 122 comprises a second end surface 102 close to the second bayonet 123, wherein the first end surface 101 and the second end surface 102 are abutted. The length of the first bayonet 113 is equal to the length of the second latch 122. The length of the second bayonet 123 is equal to the length of the first latch 112. Thus, the first cartridge 112 just fills the second bayonet 123, and the second cartridge 122 just fills the first bayonet 113. In order to make the engagement between the first sidewall 111 and the second sidewall 121 more secure, the length of the first latch 112 and the length of the second latch 122 may be designed to be equal.

Further, the first latch 112 further includes a first side surface 103 and a second side surface 104 which are oppositely disposed, and the first side surface 103 and the second side surface 104 are connected through the first end surface 101; the second latch 122 further includes a third side 105 and a fourth side 106 disposed oppositely, and the third side 105 and the fourth side 106 are connected by the second end surface 102; the first side 103 and the third side 105 are located on the same plane, and the second side 104 and the fourth side 106 are located on the same plane. That is, the width of the first latch 112 is equal to the width of the second latch 122, so that the first sidewall 111 and the second sidewall 121 can be fastened and fixed, and the area of the circuit board 130 occupied by the fastened first sidewall 111 and second sidewall 121 can be reduced.

It is easy to understand that the first shielding case 110 further includes a first bottom wall 114 connected to the first side wall 111, in this embodiment, the first shielding case 110 is substantially rectangular, that is, the first bottom wall 114 includes a first bottom wall 114 and four first side walls 111, the four first side walls 111 are respectively disposed around the first bottom wall 114, the first bottom wall 114 and the circuit board 130 are disposed opposite to each other, one end of the first side wall 111 is connected to the first bottom wall 114, and the other end is connected to the circuit board 130, such that the first bottom wall 114 and the four first side walls 111 jointly enclose a shielding space 115, and the electronic module is accommodated in the shielding space 115. Optionally, the first shielding shell 110 is integrally formed by stamping, but in other alternative embodiments, other forming methods or fixing connection methods may be adopted. The shape of the first shielding can 110 may also be triangular, circular, or elliptical, etc., and the first sidewall 111 may be linear, L-shaped, etc., according to practical needs, and is not limited in particular.

In this embodiment, the first latching portion 112 and the first latching opening 113 are disposed on one of the first sidewalls 111, so that the first latching portion 112 is latched into the second latching opening 123 of the second sidewall 121, and the second latching portion 122 is latched into the first latching opening 113. Further, the first bayonet 113 penetrates through the first sidewall 111 and is opened to the first bottom wall 114, that is, the depth of the first bayonet 113 is the height of the first sidewall 111. Similarly, the structure of the second shield can 120 is similar to that of the first shield can 110, the second shield can 120 further includes a second bottom wall 124 connected to the second side wall 121, and the second bayonet 123 penetrates through the second side wall 121 and is opened to the second bottom wall 124, that is, the depth of the second bayonet 123 is the height of the second side wall 121. Of course, in other alternative embodiments, the depth of the first bayonet 113 may be smaller than the height of the first sidewall 111, and the depth of the second bayonet 123 may also be smaller than the height of the second sidewall 121, which is not limited herein.

It should be noted that the circuit board 130 in the present embodiment may be a printed circuit board 130, a flexible circuit board 130, or a rigid-flex board, and is not limited herein. When there are a plurality of electronic modules on circuit board 130, need to set up a plurality of shield covers, in two adjacent shield covers, first lateral wall 111 of adjacent first shield cover 110 and second lateral wall 121 of second shield cover 120 can block the setting each other, first fixture block 112 card on first lateral wall 111 is gone into in second bayonet 123, second lateral wall 121 card is gone into in first bayonet 113, so that first fixture block 112 and second fixture block 122 constitute a shielding muscle, can satisfy the electromagnetic shield function, can reduce the area that the shield cover occupies circuit board 130 again, thereby improve circuit board 130's usable area, lay more electronic modules, improve circuit board 130's integrated level, be favorable to realizing the lightweight design of electronic product.

Second embodiment

Referring to fig. 6, in the embodiment, a first shielding cover 110 and a second shielding cover 120 are disposed on a circuit board 130, the first shielding cover 110 includes a first bottom wall 114 and four first side walls 111, and the first bottom wall 114 and the four first side walls 111 enclose to form a shielding space 115. The first shield case 110 is mounted on the circuit board 130, and the electronic module case is disposed in the shield space 115. A plurality of first bayonets 113 and a plurality of first clamping blocks 112 are arranged on one of the first side walls 111 at intervals, and the first bayonets 113 and the first clamping blocks 112 are alternately arranged; the structure of the second shielding shell 120 is similar to that of the first shielding shell 110, a plurality of second bayonets 123 and a plurality of second latches 122 are alternately arranged on one of the second side walls 121 of the second shielding shell 120, each of the first latches 112 is latched into one of the second bayonets 123, and each of the second latches 122 is latched into one of the first bayonets 113, so as to realize the engagement between the first side wall 111 and the second side wall 121.

It should be noted that the shape of the first latch 112 may be a square shape, a wedge shape, an arc shape or any other shape as long as the shape and the size of the first latch 112 are adapted to the shape and the size of the second bayonet 123, and the shape of the second latch 122 may be a square shape, a wedge shape, an arc shape or any other shape as long as the shape and the size of the second latch 122 are adapted to the shape and the size of the first bayonet 113. The depth of the first bayonet 113 may be equal to the height of the first sidewall 111, or less than the height of the first sidewall 111; the depth of the second bayonet 123 may be equal to the height of the second sidewall 121, or less than the height of the second sidewall 121, and is not particularly limited herein.

The contents of other parts not mentioned in this embodiment are similar to those described in the first embodiment, and are not described again here.

Third embodiment

Referring to fig. 7 and 8, in the present embodiment, three shielding cases are disposed on the circuit board 130 for shielding three electronic modules respectively. Namely, the shielding cage comprises a first shielding cage 110, a second shielding cage 120 and a third shielding cage, wherein the first shielding cage 110 comprises a first bottom wall 114 and four first side walls 111, the second shielding cage 120 comprises a second bottom wall 124 and four second side walls 121, and the third shielding cage comprises a third bottom wall and four third side walls 131. One of the first sidewalls 111 of the first shield cover 110 is engaged with one of the second sidewalls 121 of the second shield cover 120, and the other first sidewall 111 of the first shield cover 110 is engaged with one of the third sidewalls 131 of the third shield cover.

Optionally, in the first shielding case 110, one of the first sidewalls 111 is provided with a first latching block 112 and a first latching opening 113, and the other first sidewall 111 is provided with a fourth latching opening 117 and a fourth latching block 116; in the second shielding case 120, one of the second side walls 121 is provided with a second latch 122 and a second bayonet 123; in the third shielding cage, one of the third sidewalls 131 is provided with a third bayonet and a third block 132. When the circuit board 130 is provided with the shielding cover, the first latch 112 is latched into the second latch 123, and the second latch 122 is latched into the first latch 113, so that the first shielding cover 110 and the second shielding cover 120 are engaged. The third latch 132 is latched into the fourth latch 117, and the fourth latch 116 is latched into the third latch, so as to realize the engagement between the first shield 110 and the third shield. Thus, one of the first side wall 111 and the second side wall 121 are engaged, the first latch 112 and the second latch 122 form a shielding rib, the other first side wall 111 and the third side wall 131 are engaged, and the third latch 132 and the fourth latch 116 form a shielding rib. By the arrangement, the area of the circuit board 130 occupied by the shielding cases can be effectively reduced, and more electronic modules can be integrated on the circuit board 130.

In this embodiment, only three shield cases will be described as an example. In other optional embodiments, there may be four, five, six or more shielding cases, the arrangement of which is similar to that of the shielding case in this embodiment, and two adjacent sidewalls may be engaged with each other to form a common shielding rib, so that independence of a plurality of electronic modules in space is achieved, electromagnetic signals do not interfere with each other during operation, the area of the circuit board 130 occupied by the shielding cases is reduced, waste of space on the circuit board 130 is reduced, the integration level of the circuit board 130 is improved, and development of electronic products toward a light and thin direction is facilitated.

The content of the part not mentioned in this embodiment is similar to the content described in the first embodiment and the second embodiment, and is not repeated here.

The embodiment of the present invention further provides an electronic product, including the circuit board assembly 100 as in any one of the previous embodiments. Because the area of the circuit board 130 occupied by the shielding case in the circuit board assembly 100 is small, the available space of the circuit board 130 is more, which is beneficial to integrating more electronic modules on the circuit board 130 and improving the integration level of the circuit board 130, thereby the assembled electronic product has more compact structure, smaller volume and lighter weight.

To sum up, the embodiment of the present invention provides a circuit board assembly 100 and an electronic product, which have the following beneficial effects:

the embodiment of the utility model provides a circuit board assembly 100 and electronic product, the space that circuit board 130 was taken up to the shield cover reduces, has increased circuit board 130's effective usable floor area, and it is extravagant to reduce the space to be favorable to integrating more electronic module on circuit board 130 of equal area, the structure is compacter, makes the electronic product quality of equipment production lighter, the volume is littleer, more has the product competitiveness.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A circuit board assembly comprising a circuit board, at least two electronic modules and at least two shielding cages; the electronic modules are arranged on the circuit board, and each shielding case is used for covering one electronic module;

2. The circuit board assembly according to claim 1, wherein the first and second clips abut against each other, and the first and second clips are located on the same line.

3. The circuit board assembly according to claim 2, wherein the first clip block comprises a first end surface adjacent to the first bayonet, the second clip block comprises a second end surface adjacent to the second bayonet, and the first end surface and the second end surface abut.

4. The circuit board assembly according to claim 3, wherein the first latch comprises a first side surface and a second side surface which are oppositely arranged, and the first side surface and the second side surface are connected through the first end surface;

5. The circuit board assembly according to claim 1, wherein a length of the first bayonet is equal to a length of the second latch.

6. The circuit board assembly according to claim 1, wherein the length of the second bayonet is equal to the length of the first latch.

7. The circuit board assembly according to claim 1, wherein a plurality of first bayonets and a plurality of first clips are spaced from the first sidewall, and the first bayonets and the first clips are arranged alternately;

8. The circuit board assembly according to claim 1, wherein the first shielding case further comprises a first bottom wall connected to the first side wall, and the first bayonet is formed through the first side wall and opened to the first bottom wall;

9. The circuit board assembly of any one of claims 1 to 8, wherein the shield further comprises a third shield comprising a third sidewall, the first shield comprising two of the first sidewalls; one of the first side walls is clamped with the second side wall of the second shielding case;

10. An electronic product, characterized by comprising a circuit board assembly according to any one of claims 1 to 9.