WO2020107606A1 - 柔性连接结构及电子装置 - Google Patents

柔性连接结构及电子装置 Download PDF

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Publication number
WO2020107606A1
WO2020107606A1 PCT/CN2018/123999 CN2018123999W WO2020107606A1 WO 2020107606 A1 WO2020107606 A1 WO 2020107606A1 CN 2018123999 W CN2018123999 W CN 2018123999W WO 2020107606 A1 WO2020107606 A1 WO 2020107606A1
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WIPO (PCT)
Prior art keywords
connection structure
flexible connection
bent
bending
electronic device
Prior art date
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Ceased
Application number
PCT/CN2018/123999
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English (en)
French (fr)
Inventor
王超瑞
熊荣明
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SZ DJI Technology Co Ltd
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SZ DJI Technology Co Ltd
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Filing date
Publication date
Application filed by SZ DJI Technology Co Ltd filed Critical SZ DJI Technology Co Ltd
Publication of WO2020107606A1 publication Critical patent/WO2020107606A1/zh
Anticipated expiration legal-status Critical
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/51—Fixed connections for rigid printed circuits or like structures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/59—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
    • H01R12/62—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures connecting to rigid printed circuits or like structures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/14—Structural association of two or more printed circuits
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/18—Printed circuits structurally associated with non-printed electric components

Definitions

  • the invention relates to the technical field of electronic equipment, in particular, to a flexible connection structure and an electronic device.
  • FPC flexible circuit board
  • FPC flexible circuit board
  • FIGS. 1 and 2 the first circuit board 10 ′ and the second The shortest path is usually used to distribute the flexible circuit board 14' between the circuit boards 12', which can save material.
  • the flexible circuit board 14' is easily broken by force, resulting in the failure of the electrical connection between the two circuit boards, affecting the use of electronic devices, and posing hidden dangers to users' safety.
  • the present invention aims to solve one of the technical problems existing in the prior art or related technologies.
  • the first aspect of the present invention provides a flexible connection structure.
  • the second aspect of the present invention provides an electronic device.
  • the flexible connection structure provided in the first aspect of the present invention is used to connect at least two circuit boards.
  • the flexible connection structure includes: at least one bent portion formed by bending at least part of the flexible connection structure.
  • the flexible connecting structure provided by the present invention is partially bent to form at least one bent portion, so that it has a sufficient stretching margin, which can effectively avoid the phenomenon of local breakage and tearing of the flexible connecting structure and improve the flexible connecting structure.
  • Service life improve the stability of the electrical connection between multiple circuit boards.
  • it is convenient to connect the flexible connection structure to the circuit board, avoiding the short length of the flexible connection structure, and pulling the flexible connection structure Make it connected to the circuit board and cause inconvenient connection, avoid tearing the flexible connection structure.
  • the flexible connection structure After the flexible connection structure is connected to a plurality of circuit boards, it has a bent portion and has sufficient stretching margin, which can release the freedom of multiple orientations, effectively avoiding the movement of the circuit board due to vibration or knocking and pulling
  • the flexible connection structure causes partial tearing to ensure the electrical connection effect between circuit boards.
  • At least one bent portion is formed by bending at least a part of the flexible connecting structure, that is, the bending point of each bending portion is different from the bending point, and the flexible connecting structure can be connected to multiple circuit boards During the process, the local flexible connecting structure is bent to form a bent portion.
  • the flexible connection structure may be provided with a plurality of regions to be bent in advance, and both ends of each region to be bent have a to-be-bent line, which is convenient for the user to bend along the to-be-bent line to form a bent part .
  • the flexible connection structure in the above technical solution provided by the present invention may also have the following additional technical features:
  • the number of the bent portions is at least two.
  • the number of the bent portions is at least two, so that the flexible connecting structure has an elongated stretch margin in various directions, thereby effectively avoiding tearing of the flexible connecting structure.
  • the bending directions of all the bending parts are not completely the same.
  • At least one bent portion is bent in the first direction, and at least one bent portion is bent in the second direction, and the first direction and the second direction are different.
  • the extending direction of the bending portion of the bending portion is set as the bending direction, and the bending portion of any bending portion is adjacent to the bending portion of the other bending portion.
  • setting at least one bending portion to bend in the first direction and at least another bending portion to bend in the second direction setting the first direction and the second direction to be different, that is, setting multiple bending portions to Bending in multiple directions is beneficial to increase the stretch margin of the flexible connection structure in multiple orientations and release the freedom in multiple orientations, thereby facilitating the circuit board moving to various orientations without tearing the flexible connection structure.
  • the first direction and the second direction are also not opposite.
  • the flexible connection structure further includes: at least one connection segment, and each connection segment connects a group of two adjacent bending portions bent in the first direction and the second direction, respectively.
  • Each connecting segment extends straight or at least partially turns in the third direction.
  • the flexible connection structure further includes at least one connection section, and any adjacent two bending portions respectively bent in the first direction and the second direction are grouped, and each connection section is correspondingly arranged in a Between the two bending parts of the group, the two bending parts bent in different directions can be separated by a certain distance, which is conducive to the overall smooth deformation of the flexible connection structure and avoids the excessive concentration of multiple bending parts causing the other parts to be pulled At this time, partial tearing occurred due to failure to release the stretching allowance in time.
  • one end of the flexible connecting structure is bent in the first direction or the second direction to form a bent portion, and the bent portion is distributed on the end of the flexible connecting structure, especially at the end and the movable circuit board When connected, it is helpful to release the stretch margin in time when the circuit board moves.
  • the middle section of the flexible circuit structure may be bent in the first direction or the second direction to form a bent portion.
  • the extending direction of any connecting segment may be the connecting direction between the two bending parts adjacent to it, for example, when the flexible connecting structure is in a hex shape, the upper part is U The bending direction of the bent portion of the shape is to the left, the bending direction of the bent portion of the L shape below is to the right, and there is a vertical extension between the bent portion of the U shape above and the bent portion of the L shape below
  • the connecting section has a large stretch margin in the left-right direction and the up-down direction, and there is also a certain stretch margin in the inner and outer directions of the paper.
  • each connecting section When at least part of each connecting section is turned in the third direction, it is beneficial to release multiple degrees of freedom, and it is also beneficial to set up a flexible connecting structure according to a preset path, and arrange the bent part in an appropriate position, which can be effective Avoid tearing of the flexible connection structure.
  • the connection section belongs to a part of the flexible connection structure, and it extends in a plane, and can extend straightly or bend.
  • the connecting section preferably, based on the situation where the connecting section turns at least partially in the third direction, at least part of the connecting section extends in a straight line after turning in the third direction; the first direction, the second direction, and the first The three directions are different.
  • the connecting section will not turn again after turning in the third direction, but keeps extending straight until it is connected to the bending portion adjacent thereto. Furthermore, when the first direction and the second direction are different, the connecting section between the two bending parts located in a group bends in the third direction and extends linearly to connect with the adjacent bending part.
  • the flexible connection structure is released with various degrees of freedom.
  • each bent portion is bent around one axis, there are at least two bent portions whose axes are not coplanar.
  • the flexible connection structure further includes at least one elastic member, and at least one bent portion partially surrounds the at least one elastic member.
  • the set flexible connection structure further includes at least one elastic member, preferably each elastic member corresponds to a bending portion, and the bending portion partially surrounds the elastic member.
  • each elastic member corresponds to a bending portion
  • the bending portion partially surrounds the elastic member.
  • the presence of the elastic member is beneficial to keep the bending portion
  • the bent state is helpful for the flexible connection structure to be distributed among multiple circuit boards according to a preset path.
  • the elastic member can be deformed along with the deformation of the bending portion, thereby facilitating release Multiple degrees of freedom to avoid tearing of the flexible connection structure.
  • At least one bent portion is U-shaped or L-shaped.
  • At least one bent portion is U-shaped or L-shaped, which is convenient for bending and forming, so as to avoid excessively distorting the flexible connecting structure and causing the bending portion to be pulled and torn.
  • the bent portion may also be V-shaped or other structural types, which is not limited to the above examples.
  • At least one bent portion is U-shaped
  • at least one elastic member is disposed in the U-shaped opening.
  • each elastic member corresponds to one bent portion, which is beneficial to maintain the U-shaped shape of the bent portion, and Does not interfere with the bending and tension deformation.
  • the axis around which the bending portion of the U-shaped bending portion extends vertically extends. It is beneficial to maintain the shape of U-shape so that it will not be distorted locally under the influence of gravity.
  • At least one elastic member is a foam block.
  • the elastic piece is specifically set as a foam block, which is light in weight and does not pull down the bent portion, which is beneficial to maintain the bent shape of the bent portion and can also be deformed with the deformation of the bent portion, which is beneficial to
  • the flexible connection structure is distributed among multiple circuit boards in a specific route.
  • the elastic member can also be a stackable plate or a sponge block.
  • the flexible connection structure is a flexible circuit board.
  • Another aspect of the present invention provides an electronic device, including: at least two circuit boards; and the flexible connection structure according to any one of the above technical solutions, the flexible connection structure is connected between at least two circuit boards.
  • the electronic device provided by the present invention has the flexible connection structure of any of the above technical solutions, and thus has the beneficial effects of any of the above technical solutions, which will not be repeated here.
  • At least two circuit boards are relatively movable.
  • the above flexible connection structure is used to connect a plurality of relatively movable circuit boards, which can effectively prevent the flexible connection structure from being damaged. Tear to improve the reliability of electrical connections between multiple circuit boards.
  • the electronic device is a drone or a mobile terminal.
  • FIG. 1 shows a schematic diagram of a partial structure of an electronic device in the related art
  • FIG. 2 shows a structural schematic diagram of a flexible connection structure in the related art
  • FIG. 3 shows a schematic diagram of a partial structure of an electronic device according to an embodiment of the invention
  • FIG. 4 shows a schematic diagram of a partial structure of an electronic device according to another embodiment of the invention.
  • First circuit board 10 First circuit board, 12 Second circuit board, 14 Flexible connection structure, 142 bending portion, 142a first bending portion, 142b second bending portion, 144 connecting section, 146 foam block.
  • the flexible connection structure 14 provided in the first aspect of the present invention is used to connect at least two circuit boards.
  • the flexible connection structure 14 includes: at least one bent portion 142 formed by the flexible connection structure 14 At least part of the bend is formed.
  • the flexible connecting structure 14 provided by the present invention is partially bent to form at least one bent portion 142, so that it has a sufficient stretching margin, which can effectively avoid the phenomenon of local breakage and tearing of the flexible connecting structure 14 and improve flexibility
  • the service life of the connection structure 14 improves the stability of the electrical connection between multiple circuit boards. Specifically, in the process of connecting the flexible connection structure 14 to a plurality of circuit boards, due to the existence of the stretching margin, the flexible connection structure 14 is easily connected to the circuit board, avoiding the short length of the flexible connection structure 14 and the need to pull The flexible connection structure 14 connects it to the circuit board, resulting in inconvenient connection and avoiding tearing the flexible connection structure 14.
  • the flexible connection structure 14 After the flexible connection structure 14 is connected to a plurality of circuit boards, because it has a bent portion 142, it has sufficient stretching margin, which can release the freedom of multiple orientations, effectively avoiding movement due to circuit board vibration or bumps, etc. Pulling the flexible connection structure 14 causes partial tearing, ensuring the electrical connection effect between the circuit boards.
  • the at least one bent portion 142 is formed by bending at least part of the flexible connection structure 14, that is, the bending point of each bending portion 142 is different from the bending point.
  • the local flexible connection structure 14 is bent to form a bent portion 142.
  • the flexible connection structure 14 may be provided with a plurality of regions to be bent in advance, and both ends of each region to be bent have bending lines to be bent, which is convenient for the user to bend along the bending line to form a bend ⁇ 142.
  • the number of the bent portions 142 is at least two.
  • the number of the bent portions 142 is at least two, so that the flexible connecting structure 14 has an elongated stretch margin in various directions, so as to effectively avoid the flexible connecting structure 14 from tearing.
  • the bending directions of all the bending portions 142 are not completely the same.
  • At least one bent portion 142 may include a first bent portion 142a and a second bent portion 142b, wherein the first bent portion 142a faces the first
  • the second bending portion 142b is bent in the second direction, and the first direction and the second direction are different.
  • the extending direction of the bent portion 142 at the exit is set as the bending direction, and the exit of the first bend 142a is adjacent to the entry of the second bend 142b.
  • setting the first bending portion 142a to bend in the first direction and the second bending portion 142b to bend in the second direction setting the first direction and the second direction to be different, that is, setting a plurality of bending portions 142 Bending in multiple directions is beneficial to increase the stretching allowance of the flexible connection structure 14 in multiple orientations and to release the degrees of freedom in multiple orientations, thereby facilitating the circuit board moving to various orientations without tearing the flexible connection structure 14.
  • the first direction and the second direction are also not opposite.
  • the flexible connection structure 14 further includes: at least one connection section 144, and each connection section 144 connects a group of adjacent bends respectively in the first direction The folded first bent portion 142a and the second bent portion 142b bent in the second direction.
  • Each connecting section 144 extends linearly or at least partially turns in the third direction.
  • the flexible connecting structure 14 further includes at least one connecting section 144, with any adjacent first bending portion 142a bent in the first direction and second bending portion bent in the second direction 142b is a group, and each connecting section 144 is correspondingly disposed between a group of the first bending portion 142a and the second bending portion 142b, which can bend the first bending portion 142a and the second bending in different directions
  • the folds 142b are separated by a certain distance, which is conducive to the overall gentle deformation of the flexible connecting structure 14 and prevents the multiple folds 142 from being too concentrated to cause the rest of the parts to be pulled, and the tensile allowance cannot be released in time to cause local tearing.
  • one end of the flexible connecting structure 14 is bent in the first direction or the second direction to form a bent portion 142.
  • the middle section of the flexible circuit structure may also be bent in the first direction or the second direction to form a bent portion 142.
  • the extending direction of any connecting segment 144 may be the connecting direction between the two bending portions 142 adjacent thereto, for example, when the flexible connecting structure 14 is in a hex shape, The bending direction of the U-shaped bending portion 142 above is to the left, the bending direction of the L-shaped bending portion 142 below is to the right, the U-shaped bending portion 142 above and the L-shaped bending portion below There is a connecting section 144 extending vertically between 142, and there is a large stretch margin in the left-right direction and the up-down direction. Of course, there is also a certain stretch margin in the inward and outward directions of the paper surface.
  • each connecting section 144 When at least part of each connecting section 144 turns in the third direction, it is advantageous to release multiple degrees of freedom, and it is also advantageous to arrange the flexible connecting structure 14 according to a preset path, and distribute the bending portion 142 at an appropriate position , Can effectively avoid the flexible connecting structure 14 from tearing.
  • the connection section 144 belongs to a part of the flexible connection structure 14, and it extends in a plane, and may extend straight or bend.
  • the connecting section 144 based on the situation where the connecting section 144 turns at least partially in the third direction, at least part of the connecting section 144 turns straight after turning in the third direction Extension; the first direction, the second direction, and the third direction are different.
  • the connecting section 144 will not turn again after turning in the third direction, but keeps extending straight until it is connected to the bending portion 142 adjacent thereto. Furthermore, when the first direction and the second direction are different, the connecting section 144 located between the two bending portions 142 in a group bends in the third direction and extends straight to connect with the adjacent bending portion 142 , To achieve the freedom of the flexible connection structure in all directions. Referring to FIG.
  • the bending direction of the first bending portion 142a is approximately perpendicular to the first circuit board 10 and away from the first circuit board 10, and the first bending portion 142a is opposed to at least two circuit boards
  • the up and down movement provides a stretch margin, and also provides a stretch margin for the second circuit board 12 to move toward the back of the first circuit board 10 shown in the figure;
  • the bending direction of the second bending portion 142b is nearsighted Horizontal, and away from the direction of the second circuit board 12, the second bending portion 142b provides at least two circuit boards relatively close to or away from the stretch margin
  • the third direction of the connecting section 144 is approximately horizontal, and toward the third The direction in which the second circuit board 12 extends.
  • the first direction, the second direction, and the third direction are different.
  • the first bending portion 142a and the second bending portion 142b release the stretching allowances in various directions, effectively avoiding the tearing phenomenon of the flexible connection structure.
  • each bending portion 142 when each bending portion 142 is bent around one axis, there are at least two bending portions 142 around which the axes are not coplanar.
  • the flexible connection structure 14 further includes at least one elastic member, and at least one bent portion 142 partially surrounds the at least one elastic member.
  • the flexible connecting structure 14 further includes at least one elastic member, preferably each elastic member corresponds to a bending portion 142, and the bending portion 142 partially surrounds the elastic member.
  • each elastic member corresponds to a bending portion 142
  • the bending portion 142 partially surrounds the elastic member.
  • the presence of the elastic member facilitates bending
  • the folded portion 142 is kept in a folded state, which is helpful for the flexible connection structure 14 to be distributed among a plurality of circuit boards according to a preset path.
  • the elastic member can deform with the bending portion 142 The deformation is beneficial to release the degrees of freedom in multiple directions and avoid tearing of the flexible connecting structure 14.
  • At least one bent portion 142 is U-shaped or L-shaped.
  • At least one bending portion 142 is set to be U-shaped or L-shaped, which is convenient for bending and forming, so as to avoid excessively twisting the flexible connecting structure 14 and causing the bending portion to be pulled and torn.
  • the bent portion 142 may also be V-shaped or other structural types, which is not limited to the above examples.
  • At least one bent portion 142 is U-shaped, at least one elastic member is disposed in the U-shaped opening.
  • each elastic member corresponds to one bent portion 142, which is beneficial to maintain the U-shaped bent portion 142 Shape, and does not interfere with the bending and deformation of the bending portion 142.
  • the axis around which the bending portion 142 that is U-shaped bends extends vertically. It is beneficial to maintain the shape of U-shape so that it will not be distorted locally under the influence of gravity.
  • At least one elastic member is a foam block 146.
  • the elastic piece is specifically set as a foam block 146, which is light in weight and does not pull down the bent portion 142, which is beneficial to maintain the bent shape of the bent portion 142 and can also be changed according to the deformation of the bent portion 142 The deformation is beneficial to realize that the flexible connection structure 14 is distributed among multiple circuit boards in a specific route.
  • the elastic member can also be a stackable plate or a sponge block.
  • Another embodiment of the present invention provides an electronic device, including: at least two circuit boards; and the flexible connection structure 14 according to any one of the above embodiments, the flexible connection structure 14 is connected to at least two circuit boards between.
  • the electronic device provided by the present invention has the flexible connection structure 14 of any of the above embodiments, and thus has the beneficial effects of any of the above embodiments, which will not be repeated here.
  • the number of circuit boards is set to two, which are the first circuit board 10 and the second circuit board 12 respectively.
  • At least two circuit boards are relatively movable.
  • the above flexible connection structure 14 is used to connect a plurality of relatively movable circuit boards, which can effectively avoid the flexible connection structure 14 is torn to improve the reliability of electrical connections between multiple circuit boards.
  • the electronic device is a drone or a mobile terminal, where the drone includes unmanned vehicles such as unmanned aerial vehicles, unmanned vehicles, unmanned boats, robots, etc.
  • the mobile terminal includes Terminal devices such as mobile phones, remote controls, and flat panel displays are not limited here.
  • connection can be a fixed connection, a detachable connection, or an integral connection; “connection” can It is directly connected, or indirectly connected through an intermediary.

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  • Microelectronics & Electronic Packaging (AREA)
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Abstract

一种柔性连接结构（14）及电子装置，其中，柔性连接结构（14）用于连接至少两个电路板，柔性连接结构（14）包括：至少一个弯折部（142），由柔性连接结构（14）的至少部分弯折形成。该柔性连接结构（14），由于其局部弯折形成至少一个弯折部（142），使其具有足够的拉伸余量，可有效避免柔性连接结构（14）出现局部断裂、撕裂的现象，提高了柔性连接结构（14）的使用寿命，提高了多个电路板之间的电连接稳定性。

Description

柔性连接结构及电子装置 技术领域
本发明涉及电子设备技术领域，具体而言，涉及一种柔性连接结构及电子装置。
背景技术
FPC(柔性电路板)是电子设备中重要的组成部分，起到连接导通电连接件的作用。随着FPC的应用范围越来越广，常常需要将FPC连接在两个可相互浮动连接的电路板之间，如图1和图2所示，相关技术中第一电路板10’和第二电路板12’之间通常采用最短路径分布柔性电路板14’，可节省材料。但当两个电路板发生相对移动时，柔性电路板14’极易受力断裂，导致两个电路板之间电连接失效，影响电子设备的使用，对用户的使用安全带来隐患。
发明内容
本发明旨在解决现有技术或相关技术中存在的技术问题之一。
有鉴于此，本发明的第一个方面提供了一种柔性连接结构。
本发明的第二个方面提供了一种电子装置。
为此，本发明的第一个方面提供的柔性连接结构，用于连接至少两个电路板，柔性连接结构包括：至少一个弯折部，由柔性连接结构的至少部分弯折形成。
本发明提供的柔性连接结构，由于其局部弯折形成至少一个弯折部，使其具有足够的拉伸余量，可有效避免柔性连接结构出现局部断裂、撕裂的现象，提高柔性连接结构的使用寿命，提高多个电路板之间的电连接稳定性。具体地，在将柔性连接结构与多个电路板相连接的过程中，由于拉伸余量的存在，方便柔性连接结构与电路板相连接，避免柔性连接结构长度较短，需拉扯柔性连接结构使其与电路板相连接而导致连接不便，避免 撕裂柔性连接结构。而在柔性连接结构与多个电路板连接后，由于其具有弯折部，具有足够的拉伸余量，可释放多个方位的自由度，有效避免因电路板震动或磕碰等发生移动而拉扯柔性连接结构，导致其局部撕裂，确保电路板之间的电连接效果。
具体地，至少一个弯折部由柔性连接结构的至少部分弯折形成，也即每个弯折部的入弯处与出弯处异面，可在将柔性连接结构与多个电路板相连接的过程中，将局部柔性连接结构弯折以形成弯折部。而在未将柔性连接结构弯折时，柔性连接结构可预先设置多个待弯折区域，每个待弯折区域的两端具有待弯折线，方便用户沿待弯折线弯折形成弯折部。
另外，根据本发明提供的上述技术方案中的柔性连接结构，还可以具有如下附加技术特征：
在上述任一技术方案中，优选地，弯折部的个数为至少两个。
在该技术方案中，设置弯折部的个数为至少两个，使得柔性连接结构在各个方位均具有加长的拉伸余量，从而有效避免柔性连接结构出现撕裂情况。优选地，全部弯折部的弯折方向不完全相同。
在上述任一技术方案中，优选地，至少一个弯折部向第一方向弯折，至少一个弯折部向第二方向弯折，第一方向和第二方向不相同。
在该技术方案中，设定弯折部出弯处的延伸方向为其弯折方向，任一个弯折部的出弯处与另一个弯折部的入弯处相邻。通过设定至少一个弯折部向第一方向弯折，而至少另一个弯折部向第二方向弯折，设定第一方向和第二方向不相同，即设定多个弯折部向多个方向弯折，有利于增加柔性连接结构在多个方位的拉伸余量，释放多个方位的自由度，从而有利于电路板向各个方位移动均无法撕裂柔性连接结构。优选地，第一方向和第二方向也不相背。
在上述任一技术方案中，优选地，柔性连接结构还包括：至少一个连接段，每个连接段连接一组相邻的分别向第一方向、第二方向弯折的两个弯折部。每个连接段直线延伸或至少部分向第三方向弯转。
在该技术方案中，柔性连接结构还包括至少一个连接段，以任意相邻 的分别向第一方向、第二方向弯折的两个弯折部为一组，每个连接段对应设置在一组的两个弯折部之间，可将向不同方向弯折的两个弯折部分隔一定距离，有利于柔性连接结构整体平缓形变，避免多个弯折部过于集中而导致其余部位受拉扯时，无法及时释放拉伸余量而出现局部撕裂。优选地，将柔性连接结构的一端向第一方向或第二方向弯折形成一个弯折部，通过将弯折部分布在柔性连接结构的端部，尤其在该端部与可移动的电路板相连接时，有利于在电路板发生移动时，及时释放拉伸余量。优选地，可将柔性电路结构的中间段向第一方向或第二方向弯折形成一个弯折部。
另外，在每个连接段呈直线延伸时，任一连接段的延伸方向可为同与其相邻的两个弯折部之间的连线方向，例如柔性连接结构呈己字形时，上方呈U型的弯折部的弯折方向向左，下方呈L型的弯折部的弯折方向向右，上方呈U型的弯折部与下方呈L型的弯折部之间具有竖向延伸的连接段，在左右方向、上下方向均有较大的拉伸余量，而在向纸面内外方向也存在一定的拉伸余量。而在每个连接段的至少部分向第三方向弯转时，有利于释放多个方位的自由度，也有利于按照预设路径设置柔性连接结构，将弯折部分布在适当位置，可有效避免柔性连接结构出现撕裂现象。需要说明的是，连接段属于柔性连接结构的一部分，其在平面内延伸，可直线延伸，也可弯转延伸。
在上述任一技术方案中，优选地，基于连接段至少部分向第三方向弯转的情况，连接段的至少部分向第三方向弯转后呈直线延伸；第一方向、第二方向和第三方向均不相同。
在该技术方案中，具体限定了连接段的至少部分向第三方向弯转后不会再次弯转，而是保持直线延伸直至同与其相邻的弯折部相连接。进而在第一方向和第二方向不同的情况下，位于一组的两个弯折部之间的连接段向第三方向弯转后直线延伸同与其相邻的一个弯折部连接，实现了柔性连接结构各个方位自由度的释放。
优选地，在每个弯折部均围绕一个轴线弯折时，至少存在两个弯折部所围绕的轴线不共面。
在上述任一技术方案中，优选地，柔性连接结构还包括至少一个弹性 件，至少一个弯折部部分包围至少一个弹性件。
在该技术方案中，设定柔性连接结构还包括至少一个弹性件，优选每个弹性件对应一个弯折部，弯折部部分包围弹性件，一方面弹性件的存在有利于使弯折部保持弯折状态，有利于使柔性连接结构按照预设路径分布在多个电路板之间，另一方面在柔性连接结构受拉时，弹性件可随弯折部的形变而形变，从而有利于释放多个方位的自由度，避免柔性连接结构出现撕裂现象。
在上述任一技术方案中，优选地，至少一个弯折部呈U型或呈L型。
在该技术方案中，设定至少一个弯折部呈U型或呈L型，弯折成型方便，避免过度扭曲柔性连接结构而造成弯折处受拉撕裂。当然，弯折部也可呈V型或其他结构类型，不限于上述举例。
在上述任一技术方案中，优选地，在至少一个弯折部呈U型时，至少一个弹性件设置在U型的开口内。
在该技术方案中，具体设定弯折部呈U型时，在U型的开口内设置弹性件，优选每个弹性件对应一个弯折部，有利于弯折部保持U型的形状，且不会干涉弯折部拉压形变。
在上述任一技术方案中，优选地，在至少一个弯折部呈U型时，呈U型的弯折部弯折所围绕的轴线竖向延伸。有利于维持U型的形状，使其不会受重力影响局部向下歪扭。
在上述任一技术方案中，优选地，至少一个弹性件为泡棉块。
在该技术方案中，具体设定弹性件为泡棉块，质量轻，不会下拉弯折部，有利于维持弯折部的弯折形状，还可以随弯折部的形变而形变，有利于实现柔性连接结构以特定路线分布在多个电路板之间。当然，弹性件也可以为可堆叠板或海绵块等。
优选柔性连接结构为柔性电路板。
本发明的另一方面提供了一种电子装置，包括：至少两个电路板；和如上述技术方案中任一项的柔性连接结构，柔性连接结构连接在至少两个电路板之间。
本发明提供的电子装置，由于具有上述任一技术方案的柔性连接结构，进而具有上述任一技术方案的有益效果，在此不一一赘述。
在上述任一技术方案中，优选地，至少两个电路板可相对移动。
在该技术方案中，设定至少两个电路板可相对移动，有利于满足电路板的减震要求，同时采用上述柔性连接结构连接可相对移动的多个电路板，可有效避免柔性连接结构被撕裂，提高多个电路板之间的电连接可靠性。
在上述任一技术方案中，优选地，电子装置为无人机或移动终端。
在该技术方案中，由于无人机和移动终端的电路板中均会存在需要移动的电路板，来满足相应的，例如减震等需求，进而通过将柔性连接结构应用在无人机或移动终端中，可提高无人机和移动终端的使用寿命，确保无人机和移动终端的使用效果。
本发明的附加方面和优点将在下面的描述部分中变得明显，或通过本发明的实践了解到。
附图说明
本发明的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1示出了相关技术中的电子装置的局部结构示意图；
图2示出了相关技术中的柔性连接结构的结构示意图；
图3示出了本发明的一个实施例的电子装置的局部结构示意图；
图4示出了本发明的另一个实施例的电子装置的局部结构示意图。
其中，图1和图2中附图标记与部件名称之间的对应关系为：
10’第一电路板，12’第二电路板，14’柔性电路板；
图3和图4中附图标记与部件名称之间的对应关系为：
10第一电路板，12第二电路板，14柔性连接结构，142弯折部，142a第一弯折部，142b第二弯折部，144连接段，146泡棉块。
具体实施方式
为了能够更清楚地理解本发明的上述目的、特征和优点，下面结合附图和具体实施方式对本发明进行进一步的详细描述。需要说明的是，在不冲突的情况下，本申请的实施例及实施例中的特征可以相互组合。
在下面的描述中阐述了很多具体细节以便于充分理解本发明，但是，本发明还可以采用其他不同于在此描述的其他方式来实施，因此，本发明的保护范围并不受下面公开的具体实施例的限制。
下面参照图3和图4描述根据本发明一些实施例所述的柔性连接结构和电子装置。
如图3和图4所示，本发明的第一个方面提供的柔性连接结构14，用于连接至少两个电路板，柔性连接结构14包括：至少一个弯折部142，由柔性连接结构14的至少部分弯折形成。
本发明提供的柔性连接结构14，由于其局部弯折形成至少一个弯折部142，使其具有足够的拉伸余量，可有效避免柔性连接结构14出现局部断裂、撕裂的现象，提高柔性连接结构14的使用寿命，提高多个电路板之间的电连接稳定性。具体地，在将柔性连接结构14与多个电路板相连接的过程中，由于拉伸余量的存在，方便柔性连接结构14与电路板相连接，避免柔性连接结构14长度较短，需拉扯柔性连接结构14使其与电路板相连接而导致连接不便，避免撕裂柔性连接结构14。而在柔性连接结构14与多个电路板连接后，由于其具有弯折部142，具有足够的拉伸余量，可释放多个方位的自由度，有效避免因电路板震动或磕碰等发生移动而拉扯柔性连接结构14，导致其局部撕裂，确保电路板之间的电连接效果。
具体地，至少一个弯折部142由柔性连接结构14的至少部分弯折形成，也即每个弯折部142的入弯处与出弯处异面，可在将柔性连接结构14与多个电路板相连接的过程中，将局部柔性连接结构14弯折以形成弯折部142。而在未将柔性连接结构14弯折时，柔性连接结构14可预先设置多个待弯折区域，每个待弯折区域的两端具有待弯折线，方便用户沿待弯折线弯折形成弯折部142。
在上述任一实施例中，优选地，弯折部142的个数为至少两个。
在该实施例中，设置弯折部142的个数为至少两个，使得柔性连接结构14在各个方位均具有加长的拉伸余量，从而有效避免柔性连接结构14出现撕裂情况。优选地，全部弯折部142的弯折方向不完全相同。
在上述任一实施例中，优选地，如图3所示，至少一个弯折部142可以包括第一弯折部142a和第二弯折部142b，其中，第一弯折部142a向第一方向弯折，第二弯折部142b向第二方向弯折，第一方向和第二方向不相同。
在该实施例中，设定弯折部142出弯处的延伸方向为其弯折方向，第一弯折部142a的出弯处与第二弯折部142b的入弯处相邻。通过设定第一弯折部142a向第一方向弯折，第二弯折部142b向第二方向弯折，设定第一方向和第二方向不相同，即设定多个弯折部142向多个方向弯折，有利于增加柔性连接结构14在多个方位的拉伸余量，释放多个方位的自由度，从而有利于电路板向各个方位移动均无法撕裂柔性连接结构14。优选地，第一方向和第二方向也不相背。
在上述任一实施例中，优选地，如图3和图4所示，柔性连接结构14还包括：至少一个连接段144，每个连接段144连接一组相邻的分别向第一方向弯折的第一弯折部142a和向第二方向弯折的第二弯折部142b。每个连接段144直线延伸或至少部分向第三方向弯转。
在该实施例中，柔性连接结构14还包括至少一个连接段144，以任意相邻的分别向第一方向弯折的第一弯折部142a和向第二方向弯折的第二弯折部142b为一组，每个连接段144对应设置在一组的第一弯折部142a和第二弯折部142b之间，可将向不同方向弯折的第一弯折部142a和第二弯折部142b分隔一定距离，有利于柔性连接结构14整体平缓形变，避免多个弯折部142过于集中而导致其余部位受拉扯时，无法及时释放拉伸余量而出现局部撕裂。优选地，将柔性连接结构14的一端向第一方向或第二方向弯折形成一个弯折部142，通过将弯折部142分布在柔性连接结构14的端部，尤其在该端部与可移动的电路板相连接时，有利于在电路板发生移动时，及时释放拉伸余量。也可将柔性电路结构的中间段向第一方向或第二方向弯折形成一个弯折部142。
另外，在每个连接段144呈直线延伸时，任一连接段144的延伸方向可 为与其相邻的两个弯折部142之间的连线方向，例如柔性连接结构14呈己字形时，上方呈U型的弯折部142的弯折方向向左，下方呈L型的弯折部142的弯折方向向右，上方呈U型的弯折部142与下方呈L型的弯折部142之间具有竖向延伸的连接段144，在左右方向、上下方向均有较大的拉伸余量，当然在向纸面内外方向也存在一定的拉伸余量。而在每个连接段144的至少部分向第三方向弯转时，有利于释放多个方位的自由度，也有利于按照预设路径设置柔性连接结构14，将弯折部142分布在适当位置，可有效避免柔性连接结构14出现撕裂现象。需说明的是，连接段144属于柔性连接结构14的一部分，其在平面内延伸，可直线延伸，也可弯转延伸。
在上述任一实施例中，优选地，如图3和图4所示，基于连接段144至少部分向第三方向弯转的情况，连接段144的至少部分向第三方向弯转后呈直线延伸；第一方向、第二方向、第三方向均不相同。
在该实施例中，具体限定了连接段144的至少部分向第三方向弯转后不会再次弯转，而是保持直线延伸直至同与其相邻的弯折部142相连接。进而在第一方向和第二方向不同的情况下，位于一组的两个弯折部142之间的连接段144向第三方向弯转后直线延伸同与其相邻的一个弯折部142连接，实现了柔性连接结构各个方位自由度的释放。参考图3可知，第一弯折部142a的弯折方向为近似于与第一电路板10相垂直，且远离第一电路板10的方向，第一弯折部142a至少为两个电路板相对上下移动提供了拉伸余量，也为第二电路板12向图示所示的第一电路板10的背部方向移动提供了拉伸余量；第二弯折部142b的弯折方向为近视水平，且远离第二电路板12的方向，该第二弯折部142b至少为两个电路板相对靠近或远离提供了拉伸余量，连接段144的第三方向为近似水平，且向第二电路板12所在方向延伸的方向。第一方向、第二方向及第三方向均不相同，第一弯折部142a和第二弯折部142b释放了各个方位的拉伸余量，有效避免柔性连接结构出现撕裂现象。
优选地，在每个弯折部142均围绕一个轴线弯折时，至少存在两个弯折部142所围绕的轴线不共面。
在上述任一实施例中，优选地，如图3和图4所示，柔性连接结构14还包括至少一个弹性件，至少一个弯折部142部分包围至少一个弹性件。
在该实施例中，设定柔性连接结构14还包括至少一个弹性件，优选每个弹性件对应一个弯折部142，弯折部142部分包围弹性件，一方面弹性件的存在有利于使弯折部142保持弯折状态，有利于使柔性连接结构14按照预设路径分布在多个电路板之间，另一方面在柔性连接结构14受拉时，弹性件可随弯折部142的形变而形变，从而有利于释放多个方位的自由度，避免柔性连接结构14出现撕裂现象。
在上述任一实施例中，优选地，如图3和图4所示，至少一个弯折部142呈U型或呈L型。
在该实施例中，设定至少一个弯折部142呈U型或呈L型，弯折成型方便，避免过度扭曲柔性连接结构14而造成弯折处受拉撕裂。当然，弯折部142也可呈V型或其他结构类型，不限于上述举例。
在上述任一实施例中，优选地，在至少一个弯折部142呈U型时，至少一个弹性件设置在U型的开口内。
在该实施例中，具体设定弯折部142呈U型时，在U型的开口内设置弹性件，优选每个弹性件对应一个弯折部142，有利于弯折部142保持U型的形状，且不会干涉弯折部142拉压形变。
在上述任一实施例中，优选地，在至少一个弯折部142呈U型时，呈U型的弯折部142弯折所围绕的轴线竖向延伸。有利于维持U型的形状，使其不会受重力影响局部向下歪扭。
在上述任一实施例中，优选地，至少一个弹性件为泡棉块146。
在该实施例中，具体设定弹性件为泡棉块146，质量轻，不会下拉弯折部142，有利于维持弯折部142的弯折形状，还可以随弯折部142的形变而形变，有利于实现柔性连接结构14以特定路线分布在多个电路板之间。当然，弹性件也可以为可堆叠板或海绵块等。
本发明的另一方面实施例提供了一种电子装置，包括：至少两个电路板；和如上述实施例中任一项的柔性连接结构14，柔性连接结构14连接在至少两个电路板之间。
本发明提供的电子装置，由于具有上述任一实施例的柔性连接结构14， 进而具有上述任一实施例的有益效果，在此不一一赘述。如图3和图4所示，设定电路板的个数为两个，分别为第一电路板10和第二电路板12。
在上述任一实施例中，优选地，至少两个电路板可相对移动。
在该实施例中，设定至少两个电路板可相对移动，有利于满足电路板的减震要求，同时采用上述柔性连接结构14连接可相对移动的多个电路板，可有效避免柔性连接结构14被撕裂，提高多个电路板之间的电连接可靠性。
在上述任一实施例中，优选地，电子装置为无人机或移动终端，其中，无人机包括诸如无人飞行器、无人车、无人船、机器人等无人运载工具，移动终端包括诸如手机、遥控器、平板显示器等终端设备，在此不作限定。
在该实施例中，由于无人机和移动终端的电路板中均会存在需要移动的电路板，来满足相应的，例如减震等需求，进而通过将柔性连接结构14应用在无人机或移动终端中，可提高无人机和移动终端的使用寿命，确保无人机和移动终端的使用效果。
在本发明中，术语“多个”则指两个或两个以上，除非另有明确的限定。术语“安装”、“相连”、“连接”、“固定”等术语均应做广义理解，例如，“连接”可以是固定连接，也可以是可拆卸连接，或一体地连接；“相连”可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
在本说明书的描述中，术语“一个实施例”、“一些实施例”、“具体实施例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或实例。而且，描述的具体特征、结构、材料或特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (16)

  1. 一种柔性连接结构，用于连接至少两个电路板，其特征在于，所述柔性连接结构包括：
    至少一个弯折部，由所述柔性连接结构的至少部分弯折形成。
  2. 根据权利要求1所述柔性连接结构，其特征在于，
    所述弯折部的个数为至少两个，至少一个所述弯折部向第一方向弯折，至少一个所述弯折部向第二方向弯折，所述第一方向和所述第二方向不相同。
  3. 根据权利要求2所述柔性连接结构，其特征在于，所述柔性连接结构还包括：
    至少一个连接段，每个所述连接段连接一组相邻的分别向所述第一方向、所述第二方向弯折的两个所述弯折部；
    每个所述连接段直线延伸或至少部分向第三方向弯转。
  4. 根据权利要求3所述柔性连接结构，其特征在于，
    基于所述连接段至少部分向所述第三方向弯转的情况，所述连接段的至少部分向所述第三方向弯转后呈直线延伸；
    所述第一方向、所述第二方向、所述第三方向均不相同。
  5. 根据权利要求1至4中任一项所述的柔性连接结构，其特征在于，所述柔性连接结构还包括：
    至少一个弹性件，至少一个所述弯折部部分包围所述至少一个弹性件。
  6. 根据权利要求5所述的柔性连接结构，其特征在于，
    至少一个所述弯折部呈U型，所述至少一个弹性件设置在所述U型的开口内。
  7. 根据权利要求5所述的柔性连接结构，其特征在于，
    所述至少一个弹性件为泡棉块。
  8. 一种电子装置，其特征在于，包括：
    至少两个电路板；和
    柔性连接结构，所述柔性连接结构连接在所述至少两个电路板之间，所述柔性连接结构包括：
    至少一个弯折部，由所述柔性连接结构的至少部分弯折形成。
  9. 根据权利要求8所述的电子装置，其特征在于，
    所述弯折部的个数为至少两个，至少一个所述弯折部向第一方向弯折，至少一个所述弯折部向第二方向弯折，所述第一方向和所述第二方向不相同。
  10. 根据权利要求9所述的电子装置，其特征在于，所述柔性连接结构还包括：
    至少一个连接段，每个所述连接段连接一组相邻的分别向所述第一方向、所述第二方向弯折的两个所述弯折部；
    每个所述连接段直线延伸或至少部分向第三方向弯转。
  11. 根据权利要求10所述的电子装置，其特征在于，
    基于所述连接段至少部分向所述第三方向弯转的情况，所述连接段的至少部分向所述第三方向弯转后呈直线延伸；
    所述第一方向、所述第二方向、所述第三方向均不相同。
  12. 根据权利要求8至11中任一项所述的电子装置，其特征在于，所述柔性连接结构还包括：
    至少一个弹性件，至少一个所述弯折部部分包围所述至少一个弹性件。
  13. 根据权利要求12所述的电子装置，其特征在于，
    至少一个所述弯折部呈U型，所述至少一个弹性件设置在所述U型的开口内。
  14. 根据权利要求12所述的电子装置，其特征在于，
    所述至少一个弹性件为泡棉块。
  15. 根据权利要求8所述的电子装置，其特征在于，
    所述至少两个电路板可相对移动。
  16. 根据权利要求8或15所述的电子装置，其特征在于，
    所述电子装置为无人机或移动终端。
PCT/CN2018/123999 2018-11-30 2018-12-26 柔性连接结构及电子装置 Ceased WO2020107606A1 (zh)

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