CN217546428U - Circuit board assembly and computer equipment - Google Patents
Circuit board assembly and computer equipment Download PDFInfo
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- CN217546428U CN217546428U CN202221456334.6U CN202221456334U CN217546428U CN 217546428 U CN217546428 U CN 217546428U CN 202221456334 U CN202221456334 U CN 202221456334U CN 217546428 U CN217546428 U CN 217546428U
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Abstract
The application discloses circuit board assembly and computer equipment belongs to computer technology field. The circuit board assembly comprises a first flexible circuit board, a main board and a fixing piece; the first flexible circuit board comprises a first insulating layer, a first signal transmission layer and a second insulating layer, wherein one end of the first insulating layer is provided with a first through hole, and the first signal transmission layer is positioned between the first insulating layer and the second insulating layer and is respectively connected with the first insulating layer and the second insulating layer; the mainboard is provided with a signal transmission end which is positioned in the first through hole and connected with the first signal transmission layer; the fixing piece is located at one end, close to the first through hole, of the second insulating layer and one side, far away from the mainboard, of the second insulating layer, and is connected with the mainboard and the second insulating layer respectively. By adopting the application, the electric connection between the first flexible circuit board and the mainboard can be realized only by connecting the fixing piece and the mainboard, the precision requirement is lower, the operation process is simpler and more convenient, and the operation efficiency is improved.
Description
Technical Field
The application relates to the technical field of computers, in particular to a circuit board assembly and computer equipment.
Background
In some computer devices (e.g., terminals) having a communication function, for some signal transceiver devices far away from a motherboard, a flexible circuit board is usually used to electrically connect the signal transceiver devices with the motherboard, that is, two ends of the flexible circuit board are respectively electrically connected with the motherboard and the signal transceiver devices, so as to achieve electrical connection between the motherboard and the signal transceiver devices.
The flexible circuit board and the motherboard are electrically connected by soldering. The mainboard is provided with a plurality of exposed pins, proper amount of solder is respectively placed at the position of each pin, then a plurality of welding spot positions on the flexible circuit board are respectively just opposite to one pin on the mainboard, then the flexible circuit board and the mainboard are sent into a high temperature furnace to be heated, thereby the solder is melted to respectively connect a plurality of pins on the mainboard with one welding spot position on the flexible circuit board together in a welding way, and thus the electric connection between the mainboard and the flexible circuit board is realized.
However, in the above welding process, since the plurality of pins on the motherboard are required to be respectively placed opposite to one welding spot position on the flexible circuit board, and the area of each pin and the area of the welding spot position are small, the requirement for welding precision is high, and in order to ensure the precision, an alignment device with high precision such as laser alignment may be required to be placed opposite to the pin, and the operation process is complex, and the efficiency is low.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a circuit board assembly and computer equipment, which can solve the technical problems existing in the related technology, and the technical scheme of the circuit board assembly and the computer equipment is as follows:
in one aspect, an embodiment of the present application provides a circuit board assembly, which includes a first flexible circuit board, a main board, and a fixing member;
the first flexible circuit board comprises a first insulating layer, a first signal transmission layer and a second insulating layer, wherein one end of the first insulating layer is provided with a first through hole, and the first signal transmission layer is positioned between the first insulating layer and the second insulating layer and is respectively connected with the first insulating layer and the second insulating layer;
the mainboard is provided with a signal transmission end which is positioned in the first through hole and connected with the first signal transmission layer;
the fixing piece is located at one end, close to the first through hole, of the second insulating layer, is far away from one side of the mainboard, and is connected with the mainboard and the second insulating layer respectively.
In one possible implementation, the fixing member includes a fixing plate and an elastic layer;
the fixing plate is positioned at one end of the second insulating layer close to the first through hole, is far away from one side of the mainboard, and is connected with the mainboard;
the elastic layer is located between the fixing plate and the second insulating layer and is respectively connected with the fixing plate and the second insulating layer, and the elastic layer is in an elastic compression state.
In a possible implementation manner, the elastic layer is respectively adhered to the fixing plate and the second insulating layer.
In one possible implementation, the fixing plate is connected to the main plate by bolts.
In a possible implementation manner, the fixing plate is connected with the main plate by welding.
In one possible implementation, the other end of the first insulating layer has a second through hole.
In one possible implementation, the circuit board assembly further includes a second flexible circuit board;
the second flexible circuit board comprises a third insulating layer, a second signal transmission layer and a fourth insulating layer, the second signal transmission layer is positioned between the third insulating layer and the fourth insulating layer and is respectively connected with the third insulating layer and the fourth insulating layer, and one end of the second signal transmission layer is connected with the first signal transmission layer;
and one end of the first signal transmission layer, which is far away from the first through hole, and one end of the second signal transmission layer, which is far away from the first signal transmission layer, are respectively used for being connected with different signal transceiving devices.
In a possible implementation manner, one end of the third insulating layer, which is far away from the first transmission layer, is provided with a third through hole.
In one possible implementation manner, one end of the second signal transmission layer is connected to the first signal transmission layer by welding.
In another aspect, an embodiment of the present application provides a computer device, where the computer device includes any one of the circuit board assemblies described above.
The technical scheme provided by the embodiment of the application at least comprises the following beneficial effects:
the embodiment of the application provides a circuit board assembly, which comprises a first flexible circuit board, a main board and a fixing piece. The first flexible circuit board includes a first insulating layer, a first signal transmission layer, and a second insulating layer. The fixing piece is located at one end, close to the first through hole, of the second insulating layer, is far away from one side of the mainboard, and is respectively connected with the mainboard and the second insulating layer, and under the action of the fixing piece, the signal transmission end of the mainboard is stabilized in the first through hole and is connected with the first signal transmission layer, so that the electric connection between the first flexible circuit board and the mainboard is realized. By adopting the flexible printed circuit board, the first flexible printed circuit board and the mainboard can be electrically connected only by connecting the fixing part with the mainboard, the precision requirement is low, the operation process is simple and convenient, and the operation efficiency is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a circuit board assembly according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a circuit board assembly according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a circuit board assembly according to an embodiment of the present application;
FIG. 4 is a schematic diagram of a circuit board assembly according to an embodiment of the present disclosure;
FIG. 5 is a partial enlarged structural view of the portion A in FIG. 4;
fig. 6 is a schematic structural diagram of a circuit board assembly according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a circuit board assembly according to an embodiment of the present application;
FIG. 8 is a partially enlarged schematic view of a portion B of FIG. 7;
fig. 9 is a schematic structural diagram of a circuit board assembly according to an embodiment of the present application.
Description of the drawings
1. A first flexible circuit board; 2. a main board; 3. a fixing member; 4. a second flexible circuit board;
11. a first insulating layer; 12. a first signal transmission layer; 13. a second insulating layer; 21. a signal transmission terminal; 31. a fixing plate; 32. an elastic layer; 41. a third insulating layer; 42. a second signal transmission layer; 43. a fourth insulating layer;
111. a first through hole; 112. a second through hole; 411. a third via.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, the following detailed description of the embodiments of the present application will be made with reference to the accompanying drawings.
The embodiment of the application provides a circuit board assembly, as shown in fig. 1 and fig. 2, the circuit board assembly includes a first flexible circuit board 1, a main board 2 and a fixing member 3. The main board 2 is one of the most basic and important components of a computer device, and is generally a rectangular circuit board on which circuitry, such as a control chip, a keyboard and a control switch interface of a panel, a connector for an indicator light, and the like, are mounted for performing corresponding processing on received data. The first flexible circuit board 1 has the characteristics of light weight, thin thickness, free bending and folding, and the like, and can be used for connecting a signal transceiver device far away from a main board with the main board, for example, an antenna platelet, and the like.
Next, the structures of the first flexible circuit board 1, the main board 2, and the fixing member 3 in the embodiment of the present application are described:
first flexible circuit board 1
As shown in fig. 2, the first flexible circuit board 1 includes a first insulating layer 11, a first signal transmission layer 12, and a second insulating layer 13, and the first signal transmission layer 12 is located between the first insulating layer 11 and the second insulating layer 13 and is connected to the first insulating layer 11 and the second insulating layer 13, respectively.
The first insulating layer 11 and the second insulating layer 13 are used for protection, and the material thereof is usually a substrate with good insulating property, for example, the material thereof may be LCP (Liquid Crystal Polymer, industrial Liquid Crystal Polymer), LCP has excellent thermal stability, heat resistance, radiation resistance, and the like, and can play a good role in protecting a flexible circuit board, or the material thereof may also be PI (Polyimide), PI also has good thermal stability, and the like, and of course, the first insulating layer 11 and the second insulating layer 13 may also be any other reasonable materials, which is not limited in the embodiment of the present application.
The first signal transmission layer 12 is used as a signal transmission component of the first flexible circuit board 1, the material of the first signal transmission layer is usually copper, and a copper sheet can be processed to obtain a plurality of different required routes, so that signal transmission is realized.
In the embodiment of the present application, one end of the first insulating layer 11 has a first through hole 111, that is, the first through hole 111 exposes the corresponding position of the first signal transmission layer 12, so that the first signal transmission layer 12 is more convenient to be electrically connected to the motherboard.
For example, if one signal transceiver device needs to connect two lines, and each first through hole 111 corresponds to one line, if one signal transceiver device needs to be electrically connected to the motherboard 2 through the first flexible circuit board 1, the first insulating layer 11 needs to be provided with at least two first through holes 111. Of course, the number of the first through holes 111 may be set according to other rules, which is not limited in the embodiment of the present application.
The shape of the first through hole 111 may also be set according to requirements, for example, the shape may be set to be circular, square, and the like, which is not limited in this embodiment of the application.
In a possible implementation manner, the other end of the first insulating layer 11 may also have a second through hole 112 for electrical connection between the signal transceiver device and the first flexible circuit board 1, as shown in fig. 3. That is, the signal transceiver device may have a corresponding signal transmission end, and when the first flexible circuit board 1 and the signal transceiver device are connected, the signal transmission end is connected to the first signal transmission layer 12 after passing through the second through hole 112, so as to achieve electrical connection between the first flexible circuit board 1 and the signal transceiver device. Of course, the connection mode between the first flexible circuit board 1 and the signal transceiver device may be any other reasonable mode, and this is not limited in this embodiment of the present application.
As shown in fig. 2, the main board 2 has a signal transmission terminal 21, and the signal transmission terminal 21 is located in the first through hole 111 and connected to the first signal transmission layer 12.
The signal transmission terminal 21 may be made of metal, and the electrical connection between the first flexible circuit board 1 and the motherboard 2 is realized through the connection between the signal transmission terminal 21 and the first signal transmission layer 12.
In the embodiment of the present application, when the signal transmission terminal 12 is inserted into the first through hole 111 and contacts with the first signal transmission layer 12 corresponding to the first through hole 111, the electrical connection between the signal transmission terminal and the first signal transmission layer can be realized, the first flexible circuit board 1 can transmit a signal to the motherboard 2, and the motherboard 2 can also transmit a signal to the first flexible circuit board 1.
Fixing member 3
As shown in fig. 4, the fixing element 3 is located at one end of the second insulating layer 13 close to the first through hole 111 of the first insulating layer 11 and at one side far away from the motherboard 2, and is connected to the motherboard 2 and the second insulating layer 13 respectively.
After the circuit board assembly is assembled, one end of the first flexible circuit board 1 close to the first through hole 111 is located between the main board 2 and the fixing member 3, and the fixing member 3 presses one end of the first flexible circuit board 1 close to the first through hole 111 on the main board 2, so that the signal transmission end 2 of the main board 2 is always located in the first through hole 111 and is in contact with the first signal transmission layer 2, and the first flexible circuit board 1 and the main board 2 are in an electric connection state.
The structure of the fixing element 3 is described in more detail below:
there are many possible configurations of the fixing member 3, and one of them is described below as an example: as shown in fig. 4 and 5, the fixing member 3 may include a fixing plate 31 and an elastic layer 32. One side of the fixing plate 31 may be connected to one side of the elastic layer 32.
After the circuit board assembly is assembled, the fixing plate 31 is located at one end of the second insulating layer 13 close to the first through hole 111 of the first insulating layer 11, at a side away from the motherboard 2, and is connected to the motherboard 2. The elastic layer 32 is located between the fixing plate 31 and the second insulating layer 13, and is connected to the fixing plate 31 and the second insulating layer 13, respectively. That is, after the fixing member 3 is connected to the main board 2, the fixing plate 31 has a certain pressing effect on the components between the fixing member and the main board 2, and when the fixing member 3 is pressed on the end of the first flexible circuit board 1 near the first through hole 111, the elastic layer 32 is connected to the second insulating layer 13 of the first flexible circuit board 1, and the fixing plate 31 is connected to the elastic layer 32.
After the flexible printed circuit board is mounted, the elastic layer 32 is in an elastic pressure state, that is, under the pressure action of the fixing plate 31, the elastic layer 32 applies pressure to the first flexible printed circuit board 1 in the direction of the motherboard 2, so that the first flexible printed circuit board 1 and the motherboard 2 are in a close fit state, the signal transmission end 21 is always located in the first through hole 111 and is in contact with the first signal transmission layer 12, and the first flexible printed circuit board 1 and the motherboard 2 are always in an electrical connection state.
Even if the circuit board assembly is in a severe vibration state, the first flexible circuit board 1 and the main board 2 can be always in a good close fit state due to the elastic force of the elastic layer 32.
The connection between the elastic layer 32 and other components can be various, and in one possible implementation, the elastic layer 32 can be adhered to the fixing plate 31 and the second insulating layer 13, for example, two sides of the elastic layer 32 can be adhered to the fixing plate 31 and the second insulating layer 13 by using glue. Of course, other connection manners may also be used, and the embodiment of the present application is not limited thereto.
The fixing plate 31 and the main board 2 may be connected with each other through a plurality of possibilities, and in one possible implementation, the fixing plate 31 and the main board 2 may be connected with each other through a bolt, as shown in fig. 6, that is, a through hole may be formed in the fixing plate 31, a threaded hole may be formed in the main board 2, and the bolt passes through the through hole in the fixing plate 31 and is in threaded connection with the threaded hole in the main board 2, so as to achieve the fixed connection between the fixing plate 31 and the main board 2. Alternatively, the fixing plate 31 and the motherboard 2 may be connected by welding, as shown in fig. 5, that is, the fixing plate 31 may be made of metal, and the fixing plate 31 is fixed on the motherboard 2 by welding, but because the contact area between the fixing plate 31 and the motherboard 2 is large, compared with a method of directly welding the first flexible circuit board 1 and the motherboard 2, the requirement for the accuracy of welding the fixing plate 31 and the motherboard 2 is low, the operation process is also simple and convenient, and the operation efficiency is high.
When the main board 2 needs to be connected to a plurality of signal transceiver devices, if the plurality of signal transceiver devices are close to each other, one end of the first flexible circuit board 1, which is far away from the first through hole 111, may be electrically connected to the plurality of signal transceiver devices, and one end of the first flexible circuit board 1, which is close to the first through hole 111, may be electrically connected to the main board 2, so as to implement electrical connection between the plurality of signal transceiver devices and the main board 2.
If the distances between the plurality of signal transceiver devices are relatively long and the end of the first flexible circuit board 1 away from the first through hole 111 cannot be connected to the plurality of signal transceiver devices at the same time, the structure of the circuit board assembly may be as follows:
as shown in fig. 7 and 8, the circuit board assembly further includes a second flexible circuit board 4. The second flexible circuit board 4 includes a third insulating layer 41, a second signal transmission layer 42, and a fourth insulating layer 43, the second signal transmission layer 42 is located between the third insulating layer 41 and the fourth insulating layer 43 and is connected to the third insulating layer 41 and the fourth insulating layer 43, respectively, and one end of the second signal transmission layer 42 is connected to the first signal transmission layer 12.
After the circuit board assembly is assembled, an end of the first signal transmission layer 12 away from the first through hole 111 of the first insulation layer 11 and an end of the second signal transmission layer 42 away from the first signal transmission layer 12 are respectively used for connecting with different signal transceiving devices. For example, if signal transceiver devices are disposed at two distant positions, one end of the first signal transmission layer 12 away from the first through hole 111 may be electrically connected to the signal transceiver device at one position, and one end of the second signal transmission layer 42 away from the first signal transmission layer 12 may be electrically connected to the signal transceiver device at the other position.
The circuit board assembly may include one second flexible circuit board 4, and may also include a plurality of second flexible circuit boards 4, for example, when there are three positions with longer distances and all provided with the signal transceiver device, the circuit board assembly may include two second flexible circuit boards 4, and the number of the second flexible circuit boards 4 may be set according to actual requirements, which is not limited in the embodiment of the present application.
With such an arrangement, compared with the case that a plurality of branches are arranged at the end of the first flexible circuit board 1 far away from the first through hole 111 to connect the signal transceiver devices at different positions, the typesetting rate is higher, that is, when the circuit board assembly is manufactured, if a plurality of branches are arranged at the end of the first flexible circuit board 1 far away from the first through hole 111, the typesetting of the first flexible circuit board 1 is relatively complicated, when the first flexible circuit board 1 is manufactured, more circuit boards need to be cut and discarded, the manufacturing cost is increased, and the typesetting rate is lower.
There may be multiple possible connection manners between the second flexible circuit board 4 and the signal transceiver device, and in one possible implementation manner, as shown in fig. 9, an end of the third insulating layer 41 away from the first signal transmission layer 12 has a third through hole 411, and a signal transmission end of the signal transceiver device may be located in the third through hole 411 and connected to the second signal transmission layer 42, so as to implement electrical connection between the second flexible circuit board 4 and the signal transceiver device. Of course, the connection mode may be any other reasonable mode, and the embodiment of the present application is not limited to this.
There may be a plurality of connection manners between the second signal transmission layer 42 and the first signal transmission layer 12, in a possible implementation manner, one end of the second signal transmission layer 42 is connected to the first signal transmission layer 12 by welding, and of course, other connection manners are also possible, which is not limited in this application.
The embodiment of the application also provides a terminal, and the computer device can comprise any one of the circuit board assemblies, so that when the computer device is in an oscillation state, the fixing part 3 can also connect the first flexible circuit board 1 and the main board 2 together, and the stability of signal transmission is improved.
The technical scheme provided by the embodiment of the application at least comprises the following beneficial effects:
the embodiment of the application provides a circuit board assembly, which comprises a first flexible circuit board 1, a mainboard 2 and a fixing piece 3. The first flexible circuit board 1 includes a first insulating layer 11, a first signal transmission layer 12, and a second insulating layer 13. The fixing member 4 is located at one end of the second insulating layer 13 close to the first through hole 111, at one side far away from the main board 2, and is connected to the main board 2 and the second insulating layer 13, under the action of the fixing member 3, the signal transmission end 21 of the main board 2 is stabilized in the first through hole 111 and is connected to the first signal transmission layer 12, so that the first flexible circuit board 1 is connected to the main board 2. By adopting the flexible printed circuit board, the electrical connection between the first flexible printed circuit board 1 and the mainboard 2 can be realized only by connecting the fixing part 3 and the mainboard 2, the precision requirement is low, the operation process is simple and convenient, and the operation efficiency is improved.
The above description is only exemplary of the present application and should not be taken as limiting, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A circuit board assembly, characterized in that it comprises a first flexible circuit board (1), a main board (2) and a fixing member (3);
the first flexible circuit board (1) comprises a first insulating layer (11), a first signal transmission layer (12) and a second insulating layer (13), wherein one end of the first insulating layer (11) is provided with a first through hole (111), and the first signal transmission layer (12) is positioned between the first insulating layer (11) and the second insulating layer (13) and is respectively connected with the first insulating layer (11) and the second insulating layer (13);
the main board (2) is provided with a signal transmission end (21), and the signal transmission end (21) is positioned in the first through hole (111) and connected with the first signal transmission layer (12);
the fixing piece (3) is located at one end, close to the first through hole (111), of the second insulating layer (13) and one side, far away from the main board (2), of the second insulating layer (13), and is connected with the main board (2) and the second insulating layer (13) respectively.
2. A circuit board assembly according to claim 1, characterized in that the fixture (3) comprises a fixing plate (31) and an elastic layer (32);
the fixing plate (31) is positioned at one end, close to the first through hole (111), of the second insulating layer (13), is far away from one side of the mainboard (2), and is connected with the mainboard (2);
the elastic layer (32) is located between the fixing plate (31) and the second insulating layer (13) and is respectively connected with the fixing plate (31) and the second insulating layer (13), and the elastic layer (32) is in an elastic compression state.
3. The circuit board assembly according to claim 2, wherein the elastic layer (32) is adhered to the fixing plate (31) and the second insulating layer (13), respectively.
4. A circuit board assembly according to claim 2, characterized in that the fixing plate (31) is bolted to the main board (2).
5. A circuit board assembly according to claim 2, characterised in that the fixing plate (31) is connected to the main board (2) by soldering.
6. A circuit board assembly according to claim 1, characterized in that the other end of the first insulating layer (11) has a second through hole (112).
7. A circuit board assembly according to claim 1, characterized in that the circuit board assembly further comprises a second flexible circuit board (4);
the second flexible circuit board (4) comprises a third insulating layer (41), a second signal transmission layer (42) and a fourth insulating layer (43), the second signal transmission layer (42) is located between the third insulating layer (41) and the fourth insulating layer (43) and is respectively connected with the third insulating layer (41) and the fourth insulating layer (43), and one end of the second signal transmission layer (42) is connected with the first signal transmission layer (12);
one end of the first signal transmission layer (12) far away from the first through hole (111) and one end of the second signal transmission layer (42) far away from the first signal transmission layer (12) are respectively used for being connected with different signal transceiving devices.
8. Circuit board assembly according to claim 7, characterised in that the end of the third insulating layer (41) remote from the first signal transmission layer (12) has a third through hole (411).
9. The circuit board assembly of claim 7, wherein one end of the second signal transmission layer (42) is connected to the first signal transmission layer (12) by soldering.
10. A computer device, characterized in that the computer device comprises a circuit board assembly according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221456334.6U CN217546428U (en) | 2022-06-10 | 2022-06-10 | Circuit board assembly and computer equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221456334.6U CN217546428U (en) | 2022-06-10 | 2022-06-10 | Circuit board assembly and computer equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217546428U true CN217546428U (en) | 2022-10-04 |
Family
ID=83443974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221456334.6U Active CN217546428U (en) | 2022-06-10 | 2022-06-10 | Circuit board assembly and computer equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217546428U (en) |
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2022
- 2022-06-10 CN CN202221456334.6U patent/CN217546428U/en active Active
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