WO2015165038A1

WO2015165038A1 - Terminal

Info

Publication number: WO2015165038A1
Application number: PCT/CN2014/076480
Authority: WO
Inventors: 卢红旗; 宗献波; 贾东兴; 赵文龙
Original assignee: 华为终端有限公司
Priority date: 2014-04-29
Filing date: 2014-04-29
Publication date: 2015-11-05
Also published as: CN105359496B; CN105359496A

Abstract

Disclosed is a terminal. The terminal comprises a housing and comprises a PCB main board, a PCB auxiliary board and a battery that are located in the housing. The terminal is characterized in that: the PCB main board and the battery are disposed in parallel in the housing, the PCB auxiliary board is disposed in a gap between a side edge of the battery and the housing, an overlapping region exists between the PCB main board and the PCB auxiliary board, and the PCB main board and the PCB auxiliary board are electrically connected by means of the overlapping region. Because the PCB main board and the PCB auxiliary board can be electrically connected by means of the overlapping region, a signal can be transmitted between the PCB main board and the PCB auxiliary board without introducing a flexible printed circuit board or a coaxial cable, and accordingly, the problem of high costs due to the introduction of the flexible printed circuit board and the coaxial cable is solved, thereby reducing costs of the terminal.

Description

Terminal

Technical field

The embodiments of the present invention relate to a terminal structure technology, and in particular, to a terminal. Background technique

With the development of science and technology, the functions of various terminals are becoming more and more diverse. In order to meet the diversification of terminal functions, a stacked architecture is often used in the prior art to achieve integration of multiple functions. Currently, there are many types of stacking architectures for terminals, and one of the common architectures is a half board architecture.

The half-board architecture refers to the PCB area of the terminal (the printed circuit board) is smaller than the outer casing area. For example, the PCB main board area is substantially equal to half of the outer casing area, or the PCB main board area is smaller or larger. Half of the outer casing area (when the size of the terminal is larger, the PCB board area can be smaller in proportion to the outer casing area). Taking a mobile phone as an example, when the mobile phone adopts a half-board architecture, the mobile phone includes a PCB sub-board disposed side by side with the PCB main board and electrically connected to the PCB main board, wherein the PCB main board is away from the rear case. One side is provided with a TP (touch pane l), an LCD (liquid crystal display), a sub-microphone, etc., and a side of the PCB main board facing the rear case is provided with a headphone, a SIM card holder, an antenna, an earpiece, etc., a PCB sub board The USB interface, motor and main microphone can be set up.

As shown in FIG. 1 , in the terminal currently using the half-board architecture, the PCB main board 01 and the PCB sub-board 02 are generally disposed opposite to each other on the battery, and are far apart. The flexible printed circuit board 03 and the cable coaxial line 04 are usually electrically connected between the PCB main board 01 and the PCB sub board 02; for example: the USB signal between the PCB main board 01 and the PCB sub board 02 is realized by the flexible printed circuit board 03 MIC (microphone) signal The transmission of the signal, and the transmission of the RF signal between the PCB main board 01 and the PCB sub board 02 is realized by the cable coaxial line 04. The cost of terminals in the prior art is high due to the need to transmit signals using flexible printed circuit boards and cable coaxial lines.

SUMMARY OF THE INVENTION To solve the above technical problem, an embodiment of the present invention provides a terminal to reduce the cost of the terminal. In order to solve the above problem, the embodiment of the present invention provides the following technical solutions:

In a first aspect, the present invention provides a terminal, including: a housing and a PCB main board, a PCB sub board, and a battery in the housing, wherein the PCB main board and the battery are juxtaposed in the housing, a PCB sub-board is disposed in a gap between the side of the battery and the casing, wherein the PCB main board and the PCB sub-board have an overlapping area, and the PCB main board and the PCB sub-board pass through The overlapping areas are electrically connected.

In a first possible implementation manner of the first aspect, the terminal further includes a conductive connection member at an overlapping area of the PCB main board and the PCB sub board, the conductive connection member includes at least one conductive sheet, One end of the conductive sheet is electrically connected to the PCB main board, and the other end is electrically connected to the PCB sub board.

In conjunction with the first possible implementation of the first aspect, in a second possible implementation, the conductive connector includes a plurality of conductive sheets, each of the conductive sheets being insulated from each other.

In conjunction with the first possible implementation or the second possible implementation of the first aspect, in a third possible implementation, the overlapping area of the conductive connector and the PCB sub-board and the PCB main board The sum of the thicknesses in the direction from the front shell to the rear shell of the casing is not greater than the thickness of the battery in the direction from the front shell to the rear shell of the casing.

With reference to any possible implementation manner of the foregoing first aspect, in a fourth possible implementation manner, One end of the conductive connector is integrally formed with the PCB main board, and the other end is in electrical contact with the conductive area on the PCB sub board; or, one end of the conductive connecting member is integrated with the PCB sub board, and the other end is Electrical contact of the conductive area on the PCB main board.

With reference to any one of the possible implementations of the foregoing first aspect, in a fifth possible implementation, the conductive connector is soldered on one end of the PCB main board, and the other end is in electrical contact with the conductive area on the PCB sub board; Or one end of the conductive connector is soldered to the PCB sub-board, and the other end is in electrical contact with a conductive area on the PCB sub-board.

In conjunction with any of the possible implementations of the foregoing first aspect, in a sixth possible implementation, the conductive sheet is a copper conductive sheet.

In conjunction with the first aspect, or any one of the foregoing possible implementations, in a seventh possible implementation, the terminal further includes: an insulating fixing member disposed on a side of the PCB sub-board facing away from the PCB main board.

In conjunction with the seventh possible implementation of the first aspect, in an eighth possible implementation, the insulating fixture is a non-conductive foam.

In combination with the first aspect or any of the possible implementations of the first aspect described above, in a ninth possible implementation, the shape of the PCB sub-board is L-shaped or U-shaped.

With reference to the first aspect or any one of the foregoing possible implementation manners, in the tenth possible implementation manner, the PCB sub-board is provided with a plurality of exposed conductive regions, and the exposed conductive regions are grounded.

In conjunction with the tenth possible implementation of the first aspect, in an eleventh possible implementation, the exposed conductive region is grounded through the conductive foam. Compared with the prior art, the above technical solution has the following advantages:

The terminal provided by the embodiment of the present invention includes: a housing and a PCB main board, a PCB sub board, and a battery in the housing, wherein the PCB main board and the battery are juxtaposed in the housing, the PCB The sub-board is disposed in a gap between the side of the battery and the casing, and the PCB main board and the PCB sub-board have an overlapping area, and the PCB main board and the PCB sub-board pass the overlap Area Electrical connection. Since the PCB main board and the PCB sub board can be electrically connected through the overlapping area, the transmission of signals between the PCB main board and the PCB sub board can be realized without introducing a flexible printed circuit board and a cable coaxial line, thereby solving the problem. The costly problem caused by the introduction of flexible printed circuit boards and cable coaxial lines reduces the cost of the terminals.

DRAWINGS

1 is a schematic structural view showing electrical connection between a PCB main board and a PCB sub board in the prior art;

2 is a partial schematic diagram of a terminal according to an embodiment of the present invention;

3 is a partial schematic diagram of a terminal according to another embodiment of the present invention;

4 is a schematic diagram showing electrical connection between a PCB main board and a PCB sub board in a terminal provided by another embodiment of the present invention;

5 is a schematic structural diagram of a conductive connecting member of a terminal according to an embodiment of the present invention; FIG. 6 is a schematic diagram of a conductive area on a PCB main board of a terminal according to an embodiment of the present invention; A schematic diagram of the exposed conductive area on the PCB sub-board of the provided terminal;

8 is a partial schematic view showing a shape of a PCB sub-board in an inverted L-shape in a terminal according to still another embodiment of the present invention;

Fig. 9 is a partial schematic view showing the shape of a PCB sub-board in a U-shaped terminal according to still another embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION As described in the Background section, the cost of a terminal in the prior art is high. This is because the cable coaxial cable is electrically connected to the PCB main board and the PCB sub board through the cable head, and the cost of the cable coaxial cable, the cable head, and the flexible printed circuit board is high, so that the cost of the terminal is high. Moreover, when the PCB board and the PCB sub board are electrically connected by using a flexible printed circuit board, the prior art usually uses a corrosion and a laser engraving process to form a certain steel bracket or a magnesium alloy on the fixed PCB main board and the PCB sub board. The recesses are such that a flexible printed circuit board can be placed in the recess to avoid increasing the overall thickness of the terminal due to the presence of the flexible printed circuit board. However, this not only increases the manufacturing process steps of the terminal, but also further increases the cost of the terminal. In addition, the corrosive liquid formed during the corrosion process also pollutes the environment.

In view of this, an embodiment of the present invention provides a terminal, including: a housing and a housing

The PCB main board, the PCB sub board and the battery, the PCB main board and the battery are arranged side by side in the casing, and the PCB sub board is disposed in the gap between the side of the battery and the casing, wherein the PCB main board and the PCB sub board have overlapping areas, and the PCB The main board and the PCB sub board are electrically connected through the overlapping area.

It can be seen that the terminal provided by the embodiment of the present invention is electrically connected through the overlapping area of the PCB main board and the PCB sub board, and the PCB main board can be realized without introducing a flexible printed circuit board and a cable coaxial line.

The transmission of signals between the PCB sub-boards solves the problem of high cost due to the introduction of flexible printed circuit boards and cable coaxial lines, reducing the cost of the terminal.

The above described objects, features and advantages of the present invention will become more apparent from the aspects of the appended claims. Specific details are set forth in the following description in order to provide a thorough understanding of the invention. However, the present invention can be implemented in a variety of other ways than those described herein, and those skilled in the art can make similar promotion without departing from the spirit of the invention. The invention is therefore not limited by the specific embodiments disclosed below.

The terminal provided by the embodiment of the present invention is described in detail below by using a mobile phone as an example, but the terminal provided by the embodiment of the present invention is not limited thereto, and the terminal may also be a flat computer or a notebook. As long as the terminal includes a PCB main board, a PCB sub board, and a battery.

As shown in FIG. 2, an embodiment of the present invention provides a terminal, including: a housing 0 and a PCB main board 1 disposed on the housing 0, a PCB sub board 2, and a battery 3. The PCB main board 1 and the battery 3 are juxtaposed in the shell. In the body 0, the PCB sub-board 2 is disposed in the gap between the side of the battery 3 and the housing 0; wherein, the PCB main board 1 and the PCB sub-board 2 have an overlapping area 1 2 , and the PCB main board 1 and the PCB sub board 2 pass The overlap region 12 is electrically connected.

It should be noted that, in the embodiment of the present invention, the PCB main board 1 and the PCB sub board 2 are only used to distinguish two circuit boards, and the function is not limited. In other embodiments of the present invention, the PCB main board 1 and the PCB The functions of the sub-board 1 can be replaced with each other.

It should be noted that, in the specific configuration of the terminal, the thickness of the PCB main board 1 and the battery 3 may be different, so that the PCB main board 1 and the battery 3 may not be completely in the same plane, and therefore, in the embodiment of the present invention, The parallel arrangement of the PCB main board 1 and the battery 3 means that the PCB main board 1 and the battery 3 are arranged side by side in a certain direction, and there is no overlapping area.

It should be further noted that, in the embodiment of the present invention, as shown in FIG. 2, the side of the battery 3 refers to a side A or B of the battery 3 along the PCB main board 1 to the battery 3, and/or the battery. 3 along the side C in the direction perpendicular to the PCB main board 1 to the battery 3.

In addition, in an embodiment of the present invention, as shown in FIG. 3, the terminal further includes: a shield 4, a steel bracket 5, an LCD (liquid crystal display) 6 and a TP (touch screen) 7 and the like; wherein, the shield 4 It can be disposed on both sides of the PCB main board 1; the steel bracket 5 is disposed on the side of the PCB main board 1 away from the rear shell of the housing 0, and is used for fixing the PCB main board 1, the PCB sub board 2, the battery 3, etc.; the LCD 6 and the TP 7 are located in the steel support

5 The side of the PCB main board 1 and the PCB sub board 1 are separated from each other. The present invention does not limit the device specifically included in the terminal, and depends on the functional requirements of the terminal. In one embodiment of the invention, the PCB main board 1 and the PCB sub board 2 may be electrically connected directly through the conductive areas of their overlapping regions 12. In another embodiment of the present invention, as shown in FIG. 4, the terminal may further include: a conductive connecting member 8 located on the overlapping area 12 of the PCB main board 1 and the PCB sub-board 1; as shown in FIG. 5, the conductive connecting member 8 includes at least one conductive sheet 81. One end of the conductive sheet 81 is electrically connected to the PCB main board 1, and the other end is electrically connected to the PCB sub board 1. The electrical connection of the PCB main board 1 and the PCB sub board 2 can be realized by the conductive connection member 8. The connection is not limited by the present invention, as long as the electrical connection between the PCB main board 1 and the PCB sub-board 2 overlap region 12 is ensured. Optionally, the conductive connecting member 8 can be soldered on the PCB main board 1, that is, one end of the conductive sheet 81 is soldered on the PCB main board 1, and the other end is in contact with the PCB sub board 2 to realize electrical connection; or, the conductive connecting member 8 can be soldered. On the PCB sub-board 1, that is, one end of the conductive sheet 81 is soldered on the PCB sub-board 1, and the other end is in contact with the PCB main board 1 to realize electrical connection.

It should be noted that the embodiments of the present invention do not limit the specific shape of the conductive sheet, and may be in the form of a sheet, a line, or other shapes that are convenient to contact or mount.

In an embodiment of the present invention, when the PCB main board 1 and the PCB sub board 1 are electrically connected through the conductive connection member 8, the conductive connection member 8 can be integrally formed with the PCB main board 1, that is, the conductive connection member 8-end and the PCB main board 1 In one structure, the other end is in electrical contact with the conductive area on the PCB sub-board 1 to achieve electrical connection between the PCB main board 1 and the PCB sub board 1.

In another embodiment of the present invention, as shown in FIG. 4 and FIG. 6, when the PCB main board 1 and the PCB sub board 2 are electrically connected through the conductive connecting member 8, the conductive connecting member 8 can be integrally formed with the PCB sub board 2 That is, the conductive connector 8 - end is integrated with the PCB sub-board 1 , and the other end is in electrical contact with the conductive region 101 on the PCB main board 1 to realize electrical connection between the PCB main board 1 and the PCB sub-board 2 .

In another embodiment of the present invention, when the PCB main board 1 and the PCB sub board 1 pass through the conductive connection member 8 When electrically connected, the conductive connection member 8 - end can be soldered on the PCB main board 1 and the other end is electrically contacted with the conductive area on the PCB sub board 2 to realize electrical connection between the PCB main board 1 and the PCB sub board 2.

In another embodiment of the present invention, when the PCB main board 1 and the PCB sub board 1 are electrically connected through the conductive connection member 8, the conductive connection member 8 - end may be soldered on the PCB sub board 2, and the other end and the PCB sub board 2 The upper conductive area is electrically contacted to achieve electrical connection between the PCB main board 1 and the PCB sub board 2.

In other embodiments of the present invention, the conductive connecting member 8 may be fixed to the PCB main board 1 or the PCB sub board 1 by other means, such as bonding, etc., which is not limited by the present invention, as the case may be.

In still another embodiment of the present invention, as shown in FIG. 5, the conductive connecting member 8 includes a plurality of conductive sheets 81, and each of the conductive sheets 81 is insulated from each other, thereby ensuring that the conductive sheets 81 are used to transmit different signals. Specifically, in an embodiment of the present invention, the conductive connecting member 8 includes six conductive sheets 81, wherein one end of one conductive sheet is electrically connected to a main antenna feed point on the PCB sub-board 2, and the other end is connected to the PCB main board 1 The RF signal receiving and transmitting end are electrically connected to realize the transmission of the main antenna signal; the second conductive piece is electrically connected to the motor on the PCB sub-board 1 and the other end is electrically connected to the motor signal processor on the PCB main board 1. , thereby realizing the transmission of the motor signal; one end of the third and fourth conductive sheets is electrically connected to the MIC (microphone) device on the PCB sub-board 2, and the other end is electrically connected to the microphone signal processor on the PCB main board 1 to realize the MIC Signal transmission; One end of the fifth and sixth conductive sheets is electrically connected to the ground end of the PCB sub-board 2, and the other end is electrically connected to the ground, thereby ensuring the grounding performance of the terminal and improving the signal anti-interference ability of the terminal.

It should be noted that, because the performance of the antenna transmitting the radio frequency signal directly affects the user experience of the terminal, and the transmission of the radio frequency signal is greatly affected by the distribution parameters of the antenna transmission line (including but not limited to resistors, capacitors, etc.), the conductive sheet 81 is used. In an embodiment of the present invention, the radio frequency signal transmission line between the electrically conductive conductive strip 81 and the antenna feed point is preferably larger in diameter, and The transmission line of the four bread grounds to reduce the transmission loss of the radio frequency signal and improve the antenna performance of the terminal. Preferably, the diameter of the radio frequency signal transmission line is 0.4 awake - 0. 6 awake, including the endpoint value, but the invention is not limited thereto, as the case may be.

In other embodiments of the present invention, the conductive connecting member 8 may further include other numbers of conductive sheets 81, such as 2, 3, 4, 5 or any natural number greater than 6, which is not limited by the present invention. The functional requirements of the terminal depend on it.

On the basis of any of the above embodiments of the present invention, the conductive sheet 81 is preferably a copper conductive sheet, and the conductive region on the PCB main board 1 or the PCB sub-board 1 is preferably bright copper, thereby electrically contacting the copper conductive sheet with the bright copper. The electrical connection between the PCB main board 1 and the PCB sub board 2 overlap region 12 is realized. However, the present invention is not limited thereto, and the conductive regions on the conductive sheet 81 and the PCB main board 1 or the PCB sub board 2 may be other conductive materials.

In still another embodiment of the present invention, the sum of the thickness of the overlapping portion 12 of the conductive connecting member 8 with the PCB main board 1 and the PCB sub-board 2 in the direction from the front shell to the rear shell of the housing 0 is not greater than the battery 3 along the housing 0. The thickness in the direction from the front shell to the rear shell, that is, the thickness of the overlapping portion 12 of the conductive connecting member 8 and the PCB main board 1 and the PCB sub-board 2 in the direction from the front shell to the rear shell of the casing 0 is not greater than the thickness of the battery 3, Therefore, the thickness of the terminal is determined by the touch screen, the display screen, the steel bracket, the battery and the casing, that is, the thickness of the terminal is not increased due to the presence of the PCB main board 1 and the PCB sub board 2, so as to facilitate the thinness of the terminal. Chemical.

On the basis of any of the above embodiments of the present invention, when the PCB main board 1 and the PCB sub board 1 are electrically connected through the conductive connection member 8, in an embodiment of the present invention, the terminal further includes: disposed on the PCB sub board 2 An insulating fixing member (not shown) on one side of the PCB main board 1 so that the PCB sub board 2, the conductive connecting member 8 and the PCB main board 1 can be pressed by the insulating fixing member to ensure the PCB main board 1 and the PCB side The board 2 maintains good electrical contact through the electrically conductive connections 8. In a preferred embodiment of the present invention, the insulating fixing member may be a non-conductive foam, but the invention is not limited thereto, as long as the insulating fixing member is an insulating material and can be provided to the conductive connecting member 8 along the PCB pair. The force from the board 2 to the PCB main board 1 ensures good electrical contact between the PCB main board 1, the conductive connecting member 8, and the PCB sub board 2. In an embodiment of the present invention, the shape of the PCB sub-board 2 may be L-shaped, as shown in FIG. 2 and FIG. 8, that is, the PCB sub-board 1 is located in the gap formed by the side of the battery 3 and the housing 0, and is covered. Battery 3 A side A or B along the PCB main board 1 to the battery 3 and a side along the side C perpendicular to the PCB main board 1 to the battery 3, forming a positive L type (as shown in Figure 2) or reverse L Type (as shown in FIG. 8); In another embodiment of the present invention, the shape of the PCB sub-board 2 is U-shaped, as shown in FIG. 9, that is, the PCB sub-board 1 is located on the side of the battery 3 and constitutes the housing 0. In the gap, and covering the three sides A, B and C of the battery 3 facing the housing 0, the present invention is not limited thereto, and the PCB sub-board 2 may have other shapes, as the case may be. It should be noted that in order to ensure the grounding performance of the terminal and improve the signal anti-interference capability of the terminal, it is necessary to ensure that the conductive area of the PCB sub-board 2 has a certain area to be grounded. Therefore, in one embodiment of the present invention, as shown in FIG. 7, the PCB sub-board 2 is preferably provided with a plurality of exposed conductive regions 201, and the exposed conductive regions 201 are grounded. In a specific embodiment of the embodiment, the exposed conductive region 201 is directly grounded. In another embodiment of the embodiment, the exposed conductive region 201 can be grounded through the conductive foam, and the present invention does not Limitation, as long as the PCB sub-board 2 has a certain conductive area grounded, so as to ensure that the terminal has good grounding performance.

In summary, the terminal provided by the embodiment of the present invention, wherein the PCB main board 1 and the PCB sub board 2 can be electrically connected through the overlapping area 12, thereby realizing the PCB main board without introducing a flexible printed circuit board and a cable coaxial line. 1 and the transmission of signals between the PCB sub-board 1 to solve the problem due to the introduction of flexibility The costly problem caused by printed circuit boards and cable coaxial lines reduces the cost of the terminal. Moreover, in the terminal provided by the embodiment of the present invention, the PCB sub-board 2 is located in the gap between the battery 3 and the housing 0, and does not occupy the whole machine thickness of the terminal, thereby not increasing the overall thickness of the terminal, which is beneficial to realize The terminal is light and thin.

In addition, in the terminal provided by the embodiment of the present invention, the PCB main board 1 and the PCB sub-board 1 have an overlapping area 12, so that the overlapping area 12 can be directly electrically connected, and the assembly is simple and the reliability is high. The various parts of this manual are described in a progressive manner. Each part focuses on the differences between the other parts. The same similar parts between the parts can be referred to each other.

The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments are obvious to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not intended to be limited to the embodiments shown herein, but the scope of the invention.

Claims

Rights request

1. A terminal, including: a casing and a PCB main board, a PCB sub-board and a battery located in the casing, characterized in that the PCB main board and the battery are arranged side by side in the casing, and the PCB auxiliary board The board is disposed in the gap between the side of the battery and the casing, wherein the PCB main board and the PCB sub-board have an overlapping area, and the PCB main board and the PCB sub-board pass through the overlap Area electrical connections.

2. The terminal according to claim 1, characterized in that, the terminal further includes a conductive connector located in the overlapping area of the PCB main board and the PCB sub-board, and the conductive connector includes at least one conductive piece, so One end of the conductive sheet is electrically connected to the PCB main board, and the other end is electrically connected to the PCB secondary board.

3. The terminal according to claim 2, wherein the conductive connector includes a plurality of conductive sheets, and each conductive sheet is insulated from each other.

4. The terminal according to claim 2 or 3, characterized in that, the thickness of the overlapping area of the conductive connector, the PCB sub-board and the PCB main board along the direction from the front shell to the rear shell of the housing is The sum is no greater than the thickness of the battery along the direction from the front shell to the rear shell of the housing.

or , One end of the conductive connector is integrated with the PCB sub-board, and the other end is in electrical contact with the conductive area on the PCB main board.

6. The terminal according to any one of claims 2 to 5, characterized in that one end of the conductive connector is welded to the PCB main board, and the other end is in electrical contact with the conductive area on the PCB sub-board; or the One end of the conductive connector is welded to the PCB sub-board, and the other end is in electrical contact with the conductive area on the PCB sub-board.

7. The terminal according to any one of claims 2 to 6, characterized in that the conductive sheet is a copper conductive sheet.

8. The terminal according to any one of claims 1 to 7, characterized in that, the terminal further includes: an insulating fixing member provided on the side of the PCB sub-board facing away from the PCB main board.

9. The terminal according to claim 8, wherein the insulating fixing member is non-conductive foam.

10. The terminal according to any one of claims 1 to 9, characterized in that the shape of the PCB sub-board is L-shaped or U-shaped.

11. The terminal according to any one of claims 1 to 10, characterized in that a plurality of exposed conductive areas are provided on the PCB sub-board, and the exposed conductive areas are grounded.

12. The terminal according to claim 11, characterized in that the exposed conductive area is grounded through conductive foam.