CN211090145U - Circuit board and electronic equipment - Google Patents
Circuit board and electronic equipment Download PDFInfo
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- CN211090145U CN211090145U CN201921633585.5U CN201921633585U CN211090145U CN 211090145 U CN211090145 U CN 211090145U CN 201921633585 U CN201921633585 U CN 201921633585U CN 211090145 U CN211090145 U CN 211090145U
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- board
- circuit board
- daughter board
- motherboard
- daughter
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Abstract
The utility model provides a circuit board and electronic equipment, the circuit board includes mother board and daughter board, the main part of mother board comprises printed circuit board, and the welding has electronic components on the mother board, the electronic components include a plurality of binding post, the daughter board is close to a plurality of binding post settings; the daughter board is provided with at least one first fixing piece, the mother board is provided with at least one second fixing piece corresponding to the at least one first fixing piece, and the daughter board is fixed to the mother board through the first fixing piece and the second fixing piece so as to alleviate the deformation of the mother board caused by the plugging and unplugging of the wiring terminal. The embodiment of the utility model provides a through fixed banding daughter board on the mother board, need not the double-screw bolt and support the structural strength that can greatly increased mother board, reduce the mother board and pull out the deformation that causes because of the terminal is inserted, avoid the peripheral circuit solder joint impaired, and the cost is lower.
Description
Technical Field
The embodiment of the utility model provides a relate to the electronic equipment field, more specifically say, relate to a circuit board and electronic equipment.
Background
Printed Circuit Boards (PCBs), also called Printed Circuit boards, are important electronic components, support for electronic components, and carriers for electrical connection of electronic components. After the electronic equipment adopts the printed circuit board, because of the consistency of the printed circuit boards of the same type, the error of manual wiring is avoided, the automatic insertion or mounting, the automatic tin soldering and the automatic detection of electronic components can be realized, the quality of the electronic equipment is ensured, the labor productivity is improved, the cost is reduced, and the maintenance is convenient.
The circuit board is a printed circuit board welded with electronic components. The circuit board is usually provided with some customer interfaces, when terminals of the customer interfaces are plugged in and pulled out, stress is generated on the printed circuit board, and if the strength of the printed circuit board is not enough, the printed circuit board is deformed, and welding spots of circuits around the interfaces are damaged.
In order to increase the strength of the circuit board, a plurality of stud supports may be disposed on the printed circuit board, where the plurality of studs need to be disposed on the printed circuit board at intervals, but are limited by the structure of the printed circuit board, and some areas (for example, areas where electronic components need to be disposed or areas where lines are dense) cannot be placed with studs, thereby possibly affecting the structural strength of the printed circuit board.
In addition, the strength of the printed circuit board can be increased by increasing the thickness of the printed circuit board, increasing the thickness of copper, or replacing a plate with higher strength, which greatly increases the cost of the printed circuit board.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a partial region to above-mentioned printed circuit board can't pass through double-screw bolt additional strengthening intensity to and increase the problem that the board is thick, the copper is thick or the change material leads to the cost to increase by a wide margin, provide a circuit board and electronic equipment.
The embodiment of the present invention provides a circuit board, including a motherboard and a daughter board, wherein the main body of the motherboard is composed of a printed circuit board, and electronic components are welded on the motherboard, the electronic components include a plurality of terminals, and the daughter board is disposed near the plurality of terminals; the daughter board is provided with at least one first fixing piece, the mother board is provided with at least one second fixing piece corresponding to the at least one first fixing piece, and the daughter board is fixed to the mother board through the first fixing piece and the second fixing piece so as to alleviate the deformation of the mother board caused by the plugging and unplugging of the wiring terminal.
Preferably, the main body of the daughter board is formed by a strip-shaped printed circuit board, and the daughter board is perpendicular to the motherboard; the daughter board is provided with a plurality of first fixing pieces which are arranged along the length direction of the daughter board; the motherboard is provided with a plurality of second fixing pieces corresponding to the positions of the first fixing pieces respectively.
Preferably, the daughter board is fixed to the mother board by a soldering structure between the first fixing member and the second fixing member.
Preferably, the first fixing part is formed by a lug on the daughter board, and the lug is located on the plane of the daughter board and protrudes out of the same edge of the daughter board;
The second fixing piece is composed of through hole welding pads on the motherboard, and the shape and the size of each through hole welding pad are matched with those of the cross section of the lug; each lug is respectively inserted into one through hole welding disc and is welded and fixed with the through hole welding disc.
Preferably, the daughter board comprises a copper-clad layer, and a solder resist layer is arranged on the copper-clad layer; the daughter board is windowed at the lug location to expose copper.
Preferably, the cross section of the lug is in a strip shape, and the size of the lug protruding out of the edge of the daughter board is larger than or equal to the thickness of the mother board.
Preferably, the motherboard has a plurality of fixing holes for fixing the motherboard to the studs, and a plurality of the second fixing members are disposed avoiding the fixing holes.
Preferably, the second fixing member is disposed along one edge of the motherboard.
Preferably, the distance between two adjacent first fixing parts is 10-30 mm.
An embodiment of the utility model provides an electronic equipment is still provided, which comprises a housin, electronic equipment still includes as above the circuit board, just the circuit board is fixed in the casing.
The utility model discloses circuit board and electronic equipment have following beneficial effect: through fixing the banding daughter board on the mother board, need not the double-screw bolt and support the structural strength that can greatly increased mother board, reduce the mother board because of the terminal pulls out the deformation that the socket caused, avoid peripheral circuit solder joint impaired, and the cost is lower.
Drawings
Fig. 1 is a schematic diagram of a circuit board provided by an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of section A of FIG. 1;
Fig. 3 is a schematic diagram of a daughter board in a circuit board according to an embodiment of the present invention;
Fig. 4 is a schematic diagram of a motherboard in a circuit board according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1-2, the embodiment of the present invention provides a schematic diagram of a circuit board, which can be used to connect electronic components and realize corresponding functions. The circuit board of the present embodiment includes a motherboard 11 and a daughter board 12. A main body portion of the motherboard 11 is formed of a Printed Circuit Board (PCB), and electronic components, such as an interface 13 for connecting other devices to implement power supply input/output, data input/output, or function expansion, are soldered to the motherboard 11. The motherboard 11 may be fixed to the support studs of the electronic device housing by screws, and the screws pass through the fixing holes 111 of the motherboard 11.
The daughter board 12 may be a strip, the daughter board 12 may be disposed near the plurality of terminals, and the daughter board 12 has a plurality of first fixing members, the first fixing members are arranged on the daughter board 12 along the length direction of the daughter board 12, in practical applications, the number of the first fixing members may be adjusted according to the length of the daughter board 12, for example, when the length of the daughter board 12 is short, only one first fixing member may be disposed; when the length of the sub-board 12 is long, a plurality of first fixing pieces may be provided. The motherboard 11 has a plurality of second fixing members (the number of the second fixing members may be the same as that of the first fixing members) corresponding to the positions of the plurality of first fixing members, respectively, and the daughter board 12 is fixed to the motherboard 11 through the first fixing members and the second fixing members, so as to alleviate the deformation of the motherboard 11 caused by the plugging and unplugging of the connection terminals.
The strip-shaped daughter board 12 is fixed on the motherboard 11, so that the structural strength of the motherboard 11 can be greatly increased without stud support, the deformation of the motherboard 11 caused by terminal plugging is reduced, the damage of peripheral circuit welding spots is avoided, and the cost is lower. In a specific application, the daughter board 12 may be fixed at a position where the motherboard 11 is not conveniently supported by the studs, particularly at an edge position of the motherboard 11.
In practical applications, the daughter board 12 may have other shapes, for example, when the motherboard 11 is circular, the daughter board 12 may have a circular arc shape, a U shape, an S shape, etc., and accordingly, the first fixing member 12 may also be arranged on the daughter board 12 in a circular arc shape, a U shape, or an S shape.
In an embodiment of the present invention, the main body of the daughter board 12 is also formed of a printed circuit board, and the daughter board 12 is fixed to one surface of the motherboard 11 in a perpendicular manner to the motherboard 11. Because the daughter board 12 is a printed circuit board, the operation of the electronic components on the motherboard 11 is not disturbed, and because the daughter board 12 is perpendicular to the motherboard 11, the vertical strength of the motherboard 11 can be greatly improved, and the motherboard 11 is prevented from being deformed when the terminals on the interface 13 are plugged and unplugged.
Of course, in practical applications, the daughter board 12 may also be made of metal parts, plastic parts, etc., but the metal parts have relatively high cost, the plastic parts have relatively low strength and poor thermal stability, and are easy to age.
Preferably, the daughter board 12 may be fixed to the mother board 11 by a soldering structure between the first fixing member and the second fixing member. The soldering method has the advantages of simple structure and flat, stable and reliable other surface of the motherboard 11, and the daughter board 12 can be fixed to the motherboard 11 together with other electronic components on the motherboard 11 by reflow soldering. Of course, in practical applications, the first fixing member and the second fixing member may also adopt other manners, such as a buckle, a screw, and the like.
In practical applications, the daughter board 12 may not include circuits and electronic components thereon, but merely serves to reinforce the structural strength of the motherboard 11. Of course, the daughter board 12 may also be integrated with a circuit and an electronic component, and the circuit on the daughter board 12 is electrically connected to the circuit on the motherboard 11 by a soldering structure between the daughter board 12 and the motherboard 11.
As shown in fig. 3 and 4, when the daughter board 12 is fixed to the motherboard 11 by soldering, the first fixing members may be respectively formed by a plurality of lugs 121 on the daughter board 12, and the lugs 121 are respectively located on the plane of the daughter board 12 and respectively protrude from the same edge of the daughter board 12. Accordingly, the plurality of second fixing members on the motherboard 11 may be respectively constituted by the plurality of via pads 112 on the motherboard 11, and the shape and size of the plurality of via pads 112 match the shape and size of the cross section of the lugs 121, that is, the plurality of lugs 121 on the daughter board 12 may be respectively inserted into the plurality of via pads 112 and fixed by soldering with the via pads 112. The welding structure does not need to add extra parts or extra working procedures, not only can save cost, but also can simplify the assembly process.
When the daughter board 12 is a printed circuit board, the daughter board 12 may include a substrate, a copper-clad layer on a surface of the substrate, and a solder resist layer (insulation) on a surface of the copper-clad layer. To facilitate tinning, the daughter board is windowed at the location of the lugs 121 with copper so that the lugs 121 can be soldered to the via pads 112 by solder.
The cross section of the lug 121 can be in a strip shape, correspondingly, the through hole pad 112 on the motherboard 11 is also in a strip shape, and the size of the lug 121 protruding out of the edge of the daughter board 12 is larger than or equal to the thickness of the motherboard 11. Through the structure, the bonding strength of the daughter board 12 and the motherboard 11 can be enhanced, and the daughter board 12 is prevented from being separated from the motherboard 11 in the terminal plugging process. Of course, the bump 121 and the via pad 112 may take other shapes in practical applications.
Particularly, in order to further ensure the structural strength of the motherboard 11 and the bonding strength of the daughter board 12 and the motherboard 11, the distance between two adjacent first fixing parts (such as the lugs 121) is 10-30 mm. Of course, in practical applications, the distance between two adjacent first fixing members may also be adjusted according to the size of the motherboard 11, the layout of the interfaces on the motherboard 11, and the like.
The motherboard 11 may be fixed to the studs of the electronic device housing by screws, accordingly, the motherboard 11 has a plurality of fixing holes 111 for fixing the motherboard 11 to the studs, and a plurality of second fixing members (e.g., through-hole pads 112) are disposed avoiding the fixing holes 111, that is, the daughter board 12 is fixed to the motherboard 11 at positions where the studs are not used for supporting.
Generally, since the edge of the motherboard 11 is deformed greatly when the terminal is unplugged, a plurality of second fixing members (e.g., through hole pads 112) may be disposed along one edge of the motherboard 11, and accordingly, the daughter board 12 is fixed at one edge of the motherboard to prevent solder points near the edge from being loosened during the terminal unplugging process.
An embodiment of the utility model provides an electronic equipment is still provided, this electronic equipment include the casing and as above the circuit board, and the circuit board is fixed in the casing.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A circuit board is characterized by comprising a mother board and a daughter board, wherein the main body part of the mother board is composed of a printed circuit board, electronic components are welded on the mother board and comprise a plurality of wiring terminals, and the daughter board is arranged close to the wiring terminals; the daughter board is provided with at least one first fixing piece, the mother board is provided with at least one second fixing piece corresponding to the at least one first fixing piece, and the daughter board is fixed to the mother board through the first fixing piece and the second fixing piece so as to alleviate the deformation of the mother board caused by the plugging and unplugging of the wiring terminal.
2. The circuit board of claim 1, wherein the main body portion of the daughter board is formed of a strip-shaped printed circuit board, and the daughter board is perpendicular to the mother board; the daughter board is provided with a plurality of first fixing pieces which are arranged along the length direction of the daughter board; the motherboard is provided with a plurality of second fixing pieces corresponding to the positions of the first fixing pieces respectively.
3. The circuit board of claim 2, wherein the daughter board is secured to the motherboard by a solder structure between the first and second securing members.
4. The circuit board of claim 3, wherein the first fixing member is formed by a lug on the daughter board, and the lug is located on the plane of the daughter board and protrudes from the same edge of the daughter board;
The second fixing piece is composed of through hole welding pads on the motherboard, and the shape and the size of each through hole welding pad are matched with those of the cross section of the lug; each lug is respectively inserted into one through hole welding disc and is welded and fixed with the through hole welding disc.
5. The circuit board of claim 4, wherein the daughter board comprises a copper-clad layer with a solder resist layer thereon; the daughter board is windowed at the lug location to expose copper.
6. The circuit board of claim 4, wherein the cross-section of the lug is strip-shaped, and the protrusion of the lug from the edge of the daughter board is greater than or equal to the thickness of the mother board.
7. The circuit board of claim 2, wherein the motherboard has a plurality of fixing holes for fixing the motherboard to the studs, and a plurality of the second fixing members are disposed avoiding the fixing holes.
8. The circuit board of claim 7, wherein the second fixing member is disposed along one edge of the motherboard.
9. The circuit board according to claim 2, wherein a distance between two adjacent first fixing members is 10-30 mm.
10. An electronic device comprising a housing, wherein the electronic device further comprises the circuit board of any one of claims 1-9, and wherein the circuit board is secured within the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921633585.5U CN211090145U (en) | 2019-09-27 | 2019-09-27 | Circuit board and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921633585.5U CN211090145U (en) | 2019-09-27 | 2019-09-27 | Circuit board and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211090145U true CN211090145U (en) | 2020-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921633585.5U Active CN211090145U (en) | 2019-09-27 | 2019-09-27 | Circuit board and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211090145U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112333912A (en) * | 2020-10-14 | 2021-02-05 | Oppo广东移动通信有限公司 | Circuit board assembly, circuit board structure and electronic equipment |
-
2019
- 2019-09-27 CN CN201921633585.5U patent/CN211090145U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112333912A (en) * | 2020-10-14 | 2021-02-05 | Oppo广东移动通信有限公司 | Circuit board assembly, circuit board structure and electronic equipment |
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