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公开(公告)号：EP4177591A1
公开(公告)日：2023-05-10
申请号：EP22808572.6
申请日：2022-08-19
发明人： WANG, Ruifei , WANG, Wenhao , YANG, Xiujuan
摘要： A flexible circuit board test device is disclosed. The flexible circuit board test device includes a main clamp, a first rotating shaft arm and a second rotating shaft arm; the first rotating shaft arm and the second rotating shaft arm are rotatably mounted on a first mobile table and a second mobile table through a first main shaft and a second main shaft respectively; the first rotating shaft arm and the second rotating shaft arm each are provided with a sandwich space for simulating a motion space of a flexible circuit board; the first mobile table is provided with a first driving component in transmission connection with the first main shaft, the second mobile table is provided with a second driving component in transmission connection with the second main shaft, and the first driving component and the second driving component are configured to drive the first rotating shaft arm and the second rotating shaft arm to perform unfolding and folding actions; and the first rotating shaft arm and the second rotating shaft arm are provided with auxiliary clamps, and the auxiliary clamps are configured to locate two ends of the flexible circuit board and are electrically connected to the flexible circuit board. The test device can provide more comprehensive and accurate test data for the design of the flexible circuit board.
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公开(公告)号：EP4131905A8
公开(公告)日：2023-04-12
申请号：EP22741140.2
申请日：2022-01-18
发明人： WANG, Wenhao , YANG, Xiujuan , LI, Mingchuan
摘要： This application provides a flexible printed circuit assembly and an electronic device. The flexible printed circuit assembly includes a flexible printed circuit and a control structure. The control structure includes a transmission member and two reels arranged on the transmission member at an interval. The flexible printed circuit passes between the two reels. The transmission member is configured to drive the two reels to rotate, so that the flexible printed circuit is wound on entire peripheral sides of the two reels. Alternatively, the control structure includes a transmission member, a guide shaft, and a connecting member. The guide shaft is located on a side of the flexible printed circuit. The connecting member has one end arranged on the transmission member and an other end connected to the guide shaft. The transmission member is configured to drive the connecting member to drive the guide shaft to move, and the guide shaft is configured to drive the flexible printed circuit to bend. The transmission member of the control structure drives the reels or the guide shaft to move, and provides guidance for bending of the flexible printed circuit, so that a redundant length of the flexible printed circuit is bent to form an arcuate or circular arc shape, thereby avoiding stress concentration and increasing the life of the flexible printed circuit.
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公开(公告)号：EP4459968A1
公开(公告)日：2024-11-06
申请号：EP23841815.6
申请日：2023-04-11
发明人： WANG, Wenhao , ZHANG, Yihe , YANG, Xiujuan , HAN, Ye
摘要： Embodiments of this application provide a foldable electronic device and a shaft cover assembly. A first middle frame part and a second middle frame part in the foldable electronic device are rotatably connected to each other by using a rotating shaft assembly. The foldable electronic device further includes a flexible circuit board and at least one shaft cover assembly. The shaft cover assembly is rotatably connected to the rotating shaft assembly. The flexible circuit board is fixedly connected to the shaft cover assembly. In a process in which the first middle frame part and the second middle frame part are folded or unfolded relative to each other, the shaft cover assembly moves back and forth relative to the rotating shaft assembly in a thickness direction of the foldable electronic device. In this way, the flexible circuit board can be prevented from being at the risk of excessive folding-induced wire break or bending fatigue-induced wire break, so that user experience of the foldable electronic device can be prevented from being affected.
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公开(公告)号：EP4227637A1
公开(公告)日：2023-08-16
申请号：EP22868991.5
申请日：2022-08-25
发明人： LV, Ye , YANG, Xiujuan
IPC分类号： G01B11/06
摘要： Disclosed are a detection method and detection device for detecting a concentration of a solder flux in a reflow oven. A substrate is placed in a reflow oven, where a solder flux volatilized in the reflow oven is capable of adhering to a surface of the substrate to form a solder flux layer, a thickness of the solder flux layer is detected, and a concentration of the solder flux in the reflow oven is calculated based on the thickness of the solder flux layer, thereby resolving the problem that the concentration of the solder flux in the reflow oven cannot be detected.
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公开(公告)号：EP4195632A8
公开(公告)日：2023-08-09
申请号：EP22862399.7
申请日：2022-08-30
发明人： YANG, Xiujuan , LI, Mingchuan , WANG, Wenhao
摘要： This application provides an electronic device, including a first body, a second body, a middle cover, and a flexible printed circuit. The flexible printed circuit includes a through-shaft section, a reinforcing plate is provided on a surface of the through-shaft section, the reinforcing plate includes a support sheet and a flexible region, and the support sheet is stacked on and fastened to a surface of the through-shaft section. The flexible region is provided on the support sheet or divides the support sheet into a plurality of sheet bodies. The first body and the second body are rotatably connected to two opposite sides of the middle cover, respectively. The flexible printed circuit extends from the first body to the second body, to connect the first body and the second body, and the reinforcing plate is located in the middle cover and is fastened to the middle cover. The flexible region enables the reinforcing plate to have a capability of deforming in a length direction of the electronic device. Compared with a reinforcing plate that has a same area but no flexible region, in this application, a fastening force between the reinforcing plate and the middle cover is reduced and dispersed, so that the flexible printed circuit can be withdrawn from the electronic device for replacement.
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公开(公告)号：EP4120809A1
公开(公告)日：2023-01-18
申请号：EP22764991.0
申请日：2022-01-05
发明人： YANG, Xiujuan , WANG, Wenhao , LI, Mingchuan
摘要： This application provides a waterproof electronic device, including a shell, a first electronic module, a second electronic module, and a flexible printed circuit FPC. A first compartment and a second compartment are formed in the shell. The first compartment and the second compartment are in communication with each other through a through hole, and the through hole is used for the FPC to pass through. The first electronic module is arranged in the first compartment, and the second electronic module is arranged in the second compartment. The first electronic module is coupled to the second electronic module by using the FPC, and the FPC passes through the through hole. An opening is provided on the shell, where the opening is in communication with the through hole. A magnetic colloidal structure is arranged in the through hole, where the magnetic colloidal structure seals the through hole, thereby blocking a liquid intrusion path of external liquid between the first compartment and the second compartment, and further reducing a risk of damage to an internal electronic component.
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