Hinge gap detection equipment

Abstract

The utility model relates to the technical field of electronic equipment production, in particular to hinge gap detection equipment. The hinge gap detection equipment is used for detecting a folding gap of a hinge mechanism of foldable electronic equipment, the hinge gap detection equipment comprises a support, a carrier, a strip-shaped light source and an image acquisition device, the carrier is arranged on the support, and the carrier is used for bearing the hinge mechanism; the strip-shaped light source is arranged on the carrier, light rays of the strip-shaped light source are used for irradiating the folding gap, and the light rays of the strip-shaped light source are parallel to the folding gap; and the image acquisition device is arranged on the bracket and is used for acquiring a gap image of the folding gap. The light line of the strip-shaped light source can improve the light concentration degree at the folding gap, so that the imaging definition of the gap image of the folding gap is improved, and the detection efficiency of detection through the gap image is improved.

Description

Technical Field

[0001] This application relates to the technical field of electronic device production, and particularly relates to a hinge gap detection device. Background Art

[0002] For electronic devices such as mobile phones, folding machines on the current market connect two parts of the housing of the electronic device through a hinge mechanism, so as to realize the folding of the two parts of the housing and the electronic device. Among them, the hinge mechanism usually includes door panels, as well as transmission structures such as connecting rods, sliders and chutes. Since requirements such as folding trajectories need to be met, folding gaps usually need to be formed between the respective door panels to facilitate the folding of the electronic device.

[0003] In order to balance the aesthetics and compactness of the electronic device and avoid movement interference during folding, the width of the folding gap of the hinge mechanism needs to be controlled at the sub-millimeter level. Related technologies usually use contact gauges to measure the width of the folding gap of the hinge mechanism, and their detection efficiency needs to be improved. Utility Model Content

[0004] This application provides a hinge gap detection device to help improve the detection efficiency.

[0005] This application provides a hinge gap detection device. The hinge gap detection device is used to detect the folding gap of the hinge mechanism of a foldable electronic device. The hinge gap detection device includes a bracket, a carrier, a linear light source, and an image acquisition device. The carrier is arranged on the bracket and is used to carry the hinge mechanism; the linear light source is arranged on the carrier, and the light beam of the linear light source is used to irradiate the folding gap, and the light beam of the linear light source is parallel to the folding gap; the image acquisition device is arranged on the bracket and is used to acquire the gap image of the folding gap.

[0006] By setting the hinge gap detection device to include a bracket, a carrier, a linear light source, and an image acquisition device, the carrier is used to carry the hinge mechanism; the light beam of the linear light source is used to irradiate the folding gap, and the light beam of the linear light source is parallel to the folding gap, and the image acquisition device is used to acquire the gap image of the folding gap; the light beam of the linear light source can improve the light concentration degree at the folding gap, which is beneficial to improving the imaging clarity of the gap image of the folding gap and is beneficial to improving the detection efficiency of detecting through the gap image.

[0007] In a possible implementation, the vehicle includes a carrier plate and a contact member. The carrier plate is disposed on the bracket, and the carrier plate is used to place the hinge mechanism and make the length direction of the folding gap parallel to the plate surface of the carrier plate. The contact member is detachably and fixedly connected to the carrier plate, and the contact member is used to contact the hinge mechanism in a direction parallel to the width of the folding gap.

[0008] In another possible implementation, the contact member is provided as a cover plate. Parallel to the thickness direction of the cover plate, the hinge mechanism is configured to be disposed between the cover plate and the carrier plate. The cover plate is provided with a through structure that penetrates the thickness of the cover plate, and the through structure is configured to be disposed opposite to the folding gap.

[0009] In another possible implementation, the hinge mechanism includes at least two door panels spaced apart from each other, and the folding gap is formed between adjacent door panels. The contact member is provided with a contact protrusion on the side facing the carrier plate, and the contact protrusion is configured to at least partially extend into the folding gap. The carrier plate and the contact member are in limit cooperation to enable the contact member to move along the thickness direction of the carrier plate and restrict the movement of the contact member perpendicular to the thickness direction of the contact member. The contact protrusion is provided with a contact inclined surface on the side facing the carrier plate, and the contact inclined surface is configured to contact the edge of the door panel; and / or, a chamfer is formed on one side edge of the door panel, and the contact protrusion is configured to contact the chamfer.

[0010] In another possible implementation, the carrier plate is provided with a first magnetic attraction member, and the contact member is provided with a second magnetic attraction member. The first magnetic attraction member is configured to attract the second magnetic attraction member to move the contact member towards the carrier plate.

[0011] In another possible implementation, a groove is provided on the carrier plate, and the groove is used to accommodate the hinge mechanism. The width direction of the hinge mechanism is parallel to the width direction of the folding gap, and an activity gap is formed between the outer side in the width direction of the hinge mechanism and the side wall of the groove.

[0012] In another possible implementation, a through hole is provided on the side wall of the carrier plate, and the through hole communicates with the side wall surface of the groove.

[0013] In another possible implementation, the through hole includes a flared section and a guiding section. The guiding section communicates with the side wall surface of the groove. The flared section is disposed on the side of the guiding section away from the groove, and the diameter of the flared section increases in the direction away from the guiding section. The diameter of the guiding section is less than or equal to the minimum diameter of the flared section.

[0014] In another possible implementation, one of the carrier board and the abutting member is provided with a first positioning pin, and the other of the carrier board and the abutting member is provided with a positioning hole; the first positioning pin extends along the thickness direction of the carrier board, and the first positioning pin is sleeved in the positioning hole; the peripheral wall of the first positioning pin abuts against the hole wall of the positioning hole, so that the abutting member can move along the thickness direction of the carrier board and restricts the movement of the abutting member perpendicular to the thickness direction of the abutting member.

[0015] In another possible implementation, one of the carrier board and the abutting member is provided with a second positioning pin, and the other of the carrier board and the abutting member is provided with a positioning recess, and the diameter of the inscribed circle of the positioning recess is greater than the diameter of the second positioning pin.

[0016] In another possible implementation, the cover plate further includes a solid part, the solid part and the through structure are arranged along the length direction of the folding gap, and the included angle between the extending direction of the strip light source and the length direction of the folding gap is greater than or equal to 70 degrees and less than or equal to 90 degrees; and / or, the image acquisition device and the strip light source are arranged along the length direction of the folding gap; the hinge gap detection device includes two strip light sources spaced along the length direction of the folding gap, and the image acquisition device is arranged between the two strip light sources; and / or, the hinge gap detection device includes at least two image acquisition devices, and the image acquisition devices are arranged along the length direction of the folding gap; along the length direction of the folding gap, the shooting ranges of the image acquisition devices on the hinge mechanism partially overlap; and / or, along the length direction of the folding gap, the light ranges of the two strip light sources on the hinge mechanism at least partially overlap.

[0017] In another possible implementation, the carrier includes a carrier board, the carrier board is arranged on the bracket, and the carrier board is used for placing the hinge mechanism and making the length direction of the folding gap parallel to the board surface of the carrier board; the bracket includes a bottom plate, the carrier board is arranged on the bottom plate and is rotatably connected to the bottom plate, and the rotation axis line of the carrier board is parallel to the thickness direction of the carrier board.

[0018] In another possible implementation, one of the bottom plate and the carrier board is provided with a third positioning pin, and after the bottom plate and the carrier board rotate relative to each other by a preset angle, the third positioning pin is used to abut against the other of the bottom plate and the carrier board.

[0019] In another possible implementation, an arc-shaped groove is provided on either the bottom plate or the carrier plate, and the third positioning pin extends into the arc-shaped groove; after the bottom plate and the carrier plate rotate relative to each other by a preset angle, the third positioning pin abuts against the end of the arc-shaped groove.

[0020] In another possible implementation, a third magnetic attraction member and a fourth magnetic attraction member are provided on the bottom plate. A first virtual straight line is formed between the third magnetic attraction member and the rotation axis of the carrier plate, and a second virtual straight line is formed between the fourth magnetic attraction member and the rotation axis of the carrier plate. The angle between the first virtual straight line and the second virtual straight line is equal to the preset angle; a fifth magnetic attraction member is provided on the carrier plate, and the fifth magnetic attraction member is respectively used to attract the third magnetic attraction member or the fourth magnetic attraction member, and the carrier plate is used to rotate from the position where the fifth magnetic attraction member is opposite to the third magnetic attraction member to the position where the fifth magnetic attraction member is opposite to the fourth magnetic attraction member.

[0021] In another possible implementation, a first guide rail structure is provided between the image acquisition device and the bracket. The extending direction of the first guide rail structure intersects with the bearing surface of the carrier. The image acquisition device is used to move along the direction towards or away from the carrier through the first guide rail structure; the hinge gap detection device further includes a first locking structure, and the first locking structure is used to limit the movement of the image acquisition device in the direction towards or away from the carrier.

[0022] In another possible implementation, the first guide rail structure includes a guide rail body and a guide groove. The extending direction of the guide rail body intersects with the bearing surface of the carrier, and the guide groove is slidably connected to the guide rail body; either the bracket or the image acquisition device is provided with the guide rail body, and the other of the bracket and the image acquisition device is provided with the guide groove; the other of the bracket and the image acquisition device is further provided with a strip-shaped groove, and the strip-shaped groove is arranged at an interval from the guide groove and forms an abutting piece between the strip-shaped groove and the guide groove; the first locking structure is used to move the abutting piece towards the guide rail body to limit the sliding between the guide groove and the guide rail body.

[0023] In another possible implementation, the hinge gap detection device further includes a lateral light source. The lateral light source is arranged on the bracket, the lateral light source is arranged beside the image acquisition device, and the lateral light source is used to irradiate the hinge mechanism.

[0024] In another possible implementation, the lateral light source is rotatably connected to the bracket, and the rotation axis of the lateral light source is parallel to the light line of the strip-shaped light source; the hinge gap detection device further includes a second locking structure, and the second locking structure is used to limit the rotation of the lateral light source relative to the bracket. Brief Description of the Drawings

[0025] Figure 1 is an exploded view of a foldable electronic device corresponding to an embodiment of the present application;

[0026] Figure 2 is an exploded view of a partial structure of a foldable electronic device corresponding to an embodiment of the present application;

[0027] Figure 3 is a schematic structural diagram of a foldable electronic device corresponding to an embodiment of the present application;

[0028] Figure 4 is a schematic structural diagram of a hinge mechanism corresponding to an embodiment of the present application;

[0029] Figure 5 is a left view of a hinge mechanism corresponding to an embodiment of the present application;

[0030] Figure 6 is a schematic structural diagram of an embodiment of a hinge gap detection device provided by the present application;

[0031] Figure 7 is an exploded view of an embodiment of a hinge gap detection device provided by the present application;

[0032] Figure 8 is an exploded view of a carrier in an embodiment of the present application;

[0033] Figure 9 is Figure 6 a partial enlarged view of part A in;

[0034] Figure 10 is a schematic diagram of a partial structure of an embodiment of a hinge gap detection device provided by the present application;

[0035] Figure 11 is a front view of an embodiment of a hinge gap detection device provided by the present application;

[0036] Figure 12 is Figure 6 a partial enlarged view of part B in;

[0037] Figure 13 is a usage schematic diagram of a carrier in an embodiment of the present application;

[0038] Figure 14 is Figure 13 a cross-sectional view taken along the D-D position in;

[0039] Figure 15 is Figure 13 a cross-sectional view taken along the E-E position in;

[0040] Figure 16Schematic diagram of the use of an embodiment of the hinge gap detection device provided by this application. Detailed implementation manners

[0041] The terms "first", "second", "third", etc. in the description, claims and drawings of this application are used to distinguish different objects, rather than to limit a specific order.

[0042] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of words such as "exemplary" or "for example" is intended to present relevant concepts in a specific manner.

[0043] For electronic devices such as mobile phones, folding machines on the current market connect two parts of the housing of the electronic device through a hinge mechanism, so as to realize the folding of the two parts of the housing and the electronic device. Among them, the hinge mechanism usually includes door panels, as well as transmission structures such as connecting rods, sliders and chutes. Since requirements such as folding trajectories need to be met, folding gaps usually need to be formed between the respective door panels to facilitate the folding of the electronic device.

[0044] In order to balance the aesthetics and compactness of the electronic device and avoid movement interference during folding, the width of the folding gap of the hinge mechanism needs to be controlled at the sub-millimeter level. Related technologies usually use contact plug gauges to measure the width of the folding gap of the hinge mechanism, and its detection efficiency needs to be improved.

[0045] Therefore, this application provides a hinge gap detection device to help improve the detection efficiency.

[0046] Among them, referring to Figure 1 , the hinge gap detection device 200 is used to detect the hinge mechanism 110 of the foldable electronic device 100. The foldable electronic device 100 may include but is not limited to mobile phones, tablet computers, laptop computers, handheld computers, netbooks, etc. Among them, the embodiments of this application mainly take the hinge mechanism 110 of the foldable electronic device 100 of the type of folding mobile phone as an example for description. Without obvious conflict, the following structures can also be applied to the hinge mechanisms 110 of other foldable electronic devices 100 other than folding mobile phones.

[0047] Among them, referring to Figure 1 , Figure 2 and Figure 3, the foldable electronic device 100 includes a hinge mechanism 110, a display screen 120, and a housing 130; wherein, the display screen 120 includes a first display portion 121, a second display portion 122, and a foldable portion 123, and the foldable portion 123 is disposed between the first display portion 121 and the second display portion 122; wherein, the display screen can be integrally provided as a flexible display screen, so that the foldable portion 123 can be folded; of course, the display screen can also only set the foldable portion 123 as a flexible structure, and this embodiment does not limit this.

[0048] Referring to Figure 2 , the housing 130 includes a first housing 131 and a second housing 132, the hinge mechanism 110 is connected between the first housing 131 and the second housing 132, and both sides of the hinge mechanism 110 are respectively connected to the first housing 131 and the second housing 132 (including fixed connection and movable connection in the form of a chute, etc.). The first display portion 121 is connected to the first housing 131, and the second display portion 122 is connected to the second housing 132. Wherein, a first accommodation opening 133 may be provided on the side of the first housing 131 facing the second housing 132, a second accommodation opening 134 is provided on the side of the second housing 132 facing the first housing 131, and the first accommodation opening 133 and the second accommodation opening 134 enclose to form an accommodation space, and at least part of the hinge mechanism 110 is accommodated in this accommodation space.

[0049] In addition, Figure 3 shows a foldable electronic device in a folded state through the above hinge mechanism 110; at this time, the foldable electronic device can rotate around Figure 3 the axis M in Figure 3 and expand in the direction of the dotted arrow in

[0050] Referring to Figure 4 and Figure 5 , the hinge mechanism 110 may include transmission structures such as connecting rods, sliders, and chutes, and at least two spaced-apart door panels 112, and each door panel 112 is connected through the transmission structure, and the door panel 112 is used to support the above display screen 120. A folding gap 111 is formed between adjacent door panels 112, so as to realize the folding of the two parts of the housing and the foldable electronic device.

[0051] Wherein, a chamfer 113 can be formed on one side edge of the door panel 112 facing away from the display screen 120; the chamfer 113 faces the folding gap 111, which can be understood as the chamfer 113 is provided on the side of the door panel 112 facing the folding gap 111. In some embodiments, the length of the folding gap 111 is greater than or equal to 150 millimeters, the width of the folding gap 111 is less than or equal to 0.5 millimeters, and the aspect ratio of the folding gap 111 (which can be understood as the ratio of the length to the width) is greater than or equal to 300; it can be understood that the folding gap 111 in the hinge mechanism 110 is relatively narrow and long.

[0052] Referring Figure 6 , in an embodiment of the present application, the hinge gap detection device 200 is used to detect the folding gap 111 of the hinge mechanism 110 of the foldable electronic device 100. The hinge gap detection device 200 includes a bracket 210, a carrier 220, a strip light source 230, and an image acquisition device 240. The carrier 220 is arranged on the bracket 210, and the carrier 220 is used to carry the hinge mechanism 110; the strip light source 230 is arranged on the carrier 220, and the light line of the strip light source 230 is used to irradiate the folding gap 111, and the light line of the strip light source 230 is parallel to the folding gap 111; the image acquisition device 240 is arranged on the bracket 210, and the image acquisition device 240 is used to acquire the gap image of the folding gap 111.

[0053] Wherein, the strip light source 230 can be understood as a light source whose emitted light is in a strip shape as a whole; wherein, the width of the light line of the strip light source 230 can be made equivalent to the width of the folding gap 111 and slightly greater than the width of the folding gap 111. For example, the ratio of the width of the light line of the strip light source 230 to the width of the folding gap 111 can be made greater than or equal to 1 and less than or equal to 10.

[0054] In addition, the image acquisition device 240 can be set as a line scan camera or a area array camera, etc.

[0055] In this embodiment, the light line of the strip light source 230 can improve the light concentration degree at the folding gap 111, thereby being beneficial to improving the imaging clarity of the gap image of the folding gap 111 and being beneficial to improving the detection efficiency of detection through the gap image.

[0056] Wherein, the operator can measure the width of the folding gap 111 and the like by directly observing the gap image, measuring on the gap image, or using existing image recognition technologies for measurement, etc. This embodiment does not limit this.

[0057] For example, the hinge gap detection device 200 can further include an image recognition device and a display device. The image recognition device is used to identify the boundary of the folding gap 111 according to the gap image, thereby improving the convenience of detection.

[0058] In some embodiments, with reference to Figure 6 , the vehicle 220 includes a carrier plate 221 and an abutting member. The carrier plate 221 is disposed on the bracket 210. The carrier plate 221 is used to place the hinge mechanism 110 and make the length direction of the folding gap 111 parallel to the plate surface of the carrier plate 221; for example, with reference to Figure 4 and Figure 6 , the length direction of the folding gap 111 is arranged along the Y-axis direction, and the plate surface of the carrier plate 221 is arranged parallel to the XY plane. The abutting member is detachably and fixedly connected to the carrier plate 221 to facilitate loading or removing different hinge mechanisms 110; for example, the abutting member and the carrier plate 221 can be detachably and fixedly connected by fasteners such as bolts, or can be detachably and fixedly connected by means such as plugging and snap connection. Among them, the abutting member can be arranged to abut the hinge mechanism 110 along the direction parallel to the width of the folding gap 111.

[0059] Among them, the abutting member can be arranged as the cover plate 225; of course, the abutting member can also be arranged as a block, a rod, etc., and this embodiment does not limit this. Among them, the following embodiments mainly take the abutting member being arranged as the cover plate 225 as an example for description. Without obvious conflict, the following structures can also be applied to other types of abutting members other than the cover plate 225.

[0060] In this embodiment, the operator can first place the hinge mechanism 110 at a rough position on the carrier plate 221, thereby reducing the risk of damaging the hinge mechanism 110 due to improper force by the operator; then, the abutting member abuts the hinge mechanism 110 along the direction parallel to the width of the folding gap 111, so that the hinge mechanism 110 reaches a more accurate detection position, which is beneficial to improving the focusing accuracy of the image acquisition device 240 and is beneficial to improving the detection accuracy.

[0061] In some embodiments, with reference to Figure 6 and Figure 7 , parallel to the thickness direction of the cover plate 225, the hinge mechanism 110 is used to be disposed between the cover plate 225 and the carrier plate 221, so as to facilitate abutting the hinge mechanism 110 through the cover plate 225 to improve the position stability of the hinge mechanism 110. For example Figure 6 in

[0062] With reference to Figure 8, a through structure 226 is provided on the cover plate 225. The through structure 226 penetrates the thickness of the cover plate 225 and is used to be disposed opposite to the folding gap 111, so as to facilitate the image acquisition device 240 to acquire the gap image of the folding gap 111. Wherein, the through structure 226 can be set as a through hole, a notch and other structures.

[0063] It can be understood that since the folding gap 111 is relatively long and narrow, even if a part of the folding gap 111 is covered by the cover plate 225, other parts of the folding gap 111 can still be detected through the through structure 226, so that the detection can be completed through these detected parts of the folding gap 111.

[0064] In some embodiments, referring to Figure 7 , Figure 8 and Figure 11 , the cover plate 225 further includes a solid part 229. The solid part 229 and the through structure 226 are arranged along the length direction of the folding gap 111. The included angle C between the extending direction of the strip light source 230 and the length direction of the folding gap 111 is greater than or equal to 70 degrees and less than or equal to 90 degrees, for example, set to angles such as 75 degrees, 80 degrees, 85 degrees, etc.

[0065] In this embodiment, the hinge gap detection device 200 can not only improve the structural strength of the cover plate 225 through the solid part 229, so as to improve the abutting stability of the cover plate 225 against the hinge mechanism 110; the hinge gap detection device 200 can also make the included angle between the extending direction of the strip light source 230 and the length direction of the folding gap 111 greater than or equal to 70 degrees and less than or equal to 90 degrees, increasing the illumination area of the strip light source 230 on the folding gap 111, so as to improve the imaging quality of the folding gap 111.

[0066] In some embodiments, referring to Figure 7 and Figure 8 , one of the carrier plate 221 and the abutting member (taking the cover plate 225 as an example) is provided with a first positioning pin 251, and the other of the carrier plate 221 and the abutting member is provided with a positioning hole 252; the first positioning pin 251 extends along the thickness direction of the carrier plate 221, and the first positioning pin 251 is sleeved in the positioning hole 252; the peripheral wall of the first positioning pin 251 abuts against the hole wall of the positioning hole 252, so that the abutting member can move along the thickness direction of the carrier plate 221 and restrict the movement of the abutting member perpendicular to the thickness direction of the abutting member, so as to facilitate improving the position stability of the hinge mechanism 110 by abutting the cover plate 225 against the hinge mechanism 110.

[0067] In some embodiments, referring to Figure 7 and Figure 8, one of the carrier plate 221 and the abutting member (taking the cover plate 225 as an example) is provided with a second positioning pin 253, and the other of the carrier plate 221 and the abutting member is provided with a positioning recess 254. The diameter of the inscribed circle of the positioning recess 254 is greater than the diameter of the second positioning pin 253; it can be understood that the positioning recess 254 is larger than the second positioning pin 253. In this embodiment, the carrier plate 221 and the abutting member (taking the cover plate 225 as an example) can be initially positioned through the second positioning pin 253 and the positioning recess 254, and then more precisely positioned through the first positioning pin 251 and the positioning hole 252, improving the installation efficiency of the abutting member onto the carrier plate 221.

[0068] In some embodiments, there is a first guide rail structure between the image acquisition device 240 and the bracket 210. The extending direction of the first guide rail structure intersects with the bearing surface of the carrier 220. It can be understood that the included angle between the extending direction of the first guide rail structure and the bearing surface of the carrier 220 is greater than 0 degrees and less than or equal to 90 degrees; for example, the bearing surface of the carrier 220 is parallel to Figure 6 , Figure 9 the XY plane in Figure 6 , Figure 9 and the extending direction of the first guide rail structure is along Figure 6 , Figure 9 the Z-axis direction in

[0069] Among them, the image acquisition device 240 is used to move along the direction towards or away from the carrier 220 through the first guide rail structure. For example, along

[0070] the Z-axis direction in Figure 9 . The hinge gap detection device 200 further includes a first locking structure 241, and the first locking structure 241 is used to limit the movement of the image acquisition device 240 in the direction towards or away from the carrier 220.

[0069] In this embodiment, the image acquisition device 240 can move along the direction towards or away from the carrier 220 through the first guide rail structure, so as to facilitate changing the position of the image acquisition device 240 and improve the imaging accuracy of the image acquisition device 240, which is beneficial to improving the detection accuracy.

[0070] In some embodiments, referring to Figure 9 , the first guide rail structure includes a guide rail body 242 and a guide groove 243. The extending direction of the guide rail body 242 intersects with the bearing surface of the carrier 220. It can be understood that the included angle between the extending direction of the guide rail body 242 and the bearing surface of the carrier 220 is greater than 0 degrees and less than or equal to 90 degrees; for example, the bearing surface of the carrier 220 is parallel to Figure 9 the XY plane in Figure 9 and the extending direction of the guide rail body 242 is along

[0071] One of the bracket 210 and the image acquisition device 240 is provided with a guide rail body 242, and the other of the bracket 210 and the image acquisition device 240 is provided with a guide groove 243; for example, the bracket 210 is provided with the guide rail body 242, and the image acquisition device 240 is provided with the guide groove 243; of course, it may also be that the image acquisition device 240 is provided with the guide rail body 242, and the bracket 210 is provided with the guide groove 243, and this embodiment does not limit this. Wherein, the guide groove 243 is slidably connected to the guide rail body 242, thereby improving the mobility of the image acquisition device 240 and the efficiency of adjusting the imaging accuracy of the image acquisition device 240.

[0072] In some embodiments, the other of the bracket 210 and the image acquisition device 240 is further provided with a strip-shaped groove 244. It can be understood that the strip-shaped groove 244 and the guide groove 243 are both provided on the bracket 210 or the image acquisition device 240. Refer to Figure 9 and Figure 10 , the strip-shaped groove 244 and the guide groove 243 are arranged at intervals and form an abutting piece 245 between the strip-shaped groove 244 and the guide groove 243; the abutting piece 245 can be understood as a structure in the shape of a sheet as a whole, that is, the abutting piece 245 is relatively thin as a whole. Wherein, Figure 9 in, the strip-shaped groove 244 and the abutting piece 245 can be respectively arranged to extend along the Z-axis direction.

[0073] The first locking structure 241 is used to move the abutting piece 245 towards the guide rail body 242 to limit the sliding between the guide groove 243 and the guide rail body 242. Wherein, the first locking structure 241 can be set as a threaded fastener such as a stud or a screw, and then connected to the bracket 210 or the image acquisition device 240 by means of threaded connection. Of course, the first locking structure 241 can also be set as a plug rod, a plug block, etc.

[0074] In this embodiment, the first locking structure 241 moves the abutting piece 245 towards the guide rail body 242 to limit the sliding between the guide groove 243 and the guide rail body 242, which is beneficial to quickly fix the position of the image acquisition device 240, improving the efficiency of adjusting the imaging accuracy of the image acquisition device 240 and the imaging stability of the image acquisition device 240.

[0075] In some embodiments, refer to Figure 9 or Figure 11 , the hinge gap detection device 200 further includes a lateral light source 260. The lateral light source 260 is arranged on the bracket 210, the lateral light source 260 is arranged beside the image acquisition device 240, and the lateral light source 260 is used to irradiate the hinge mechanism 110. Wherein, the lateral light source 260 can also be set as a strip-shaped light source, and the light line of the lateral light source 260 can be set to be parallel to the length direction of the folding gap 111. Of course, the lateral light source 260 can also be set as other types of light sources.

[0076] In this embodiment, the hinge gap detection device 200 can irradiate the hinge mechanism 110 through the lateral light source 260, which can improve the brightness of the middle part of the hinge mechanism 110, increase the overall brightness of the hinge mechanism 110, and is beneficial to improving the imaging quality of the gap image of the folding gap 111.

[0077] In some embodiments, referring to Figure 9 , the lateral light source 260 is rotatably connected to the bracket 210, and the rotation axis line V of the lateral light source 260 is parallel to the light row of the strip light source 230. The hinge gap detection device 200 further includes a second locking structure for restricting the rotation of the lateral light source 260 relative to the bracket 210; for example, referring to Figure 9 , the second locking structure may include a bolt or the like, and the second locking structure is locked through an arc-shaped through groove to restrict the rotation of the lateral light source 260 relative to the bracket 210.

[0078] In this embodiment, the light direction of the lateral light source 260 can be adjusted, which is beneficial to further improving the brightness of the middle part of the hinge mechanism 110, thereby further increasing the overall brightness of the hinge mechanism 110 and being beneficial to further improving the imaging quality of the gap image of the folding gap 111.

[0079] In some embodiments, for the hinge mechanism 110 including at least two spaced-apart door panels 112 with a folding gap 111 formed between adjacent door panels 112, referring to Figure 12 , the side of the abutting member (taking the cover plate 225 as an example) facing the carrier plate 221 may be provided with an abutting protrusion 227 for at least partially extending into the folding gap 111; the carrier plate 221 is in limit fit with the abutting member so that the abutting member can move along the thickness direction of the carrier plate 221 and the movement of the abutting member perpendicular to the thickness direction of the abutting member is restricted, thereby being able to fix the hinge mechanism 110 by using the gravity of the abutting member or the external force applied to the abutting member, which is beneficial to improving the imaging accuracy of the folding gap 111.

[0080] Referring to Figure 12 , the side of the abutting protrusion 227 facing the carrier plate 221 may be provided with an abutting inclined surface 228 for abutting against the edge of the door panel 112, so as to further improve the position accuracy of the hinge mechanism 110 on the carrier plate 221 and be beneficial to improving the imaging accuracy of the folding gap 111. Of course, a chamfer 113 may also be formed on one side edge of the door panel 112, and the abutting protrusion 227 is used to abut against the chamfer 113, for example, abutting against the chamfer 113 through the above-mentioned abutting inclined surface 228, so as to further improve the position accuracy of the hinge mechanism 110 on the carrier plate 221 and be beneficial to improving the imaging accuracy of the folding gap 111.

[0081] Among them, on the side of the abutting member (taking the cover plate 225 as an example) facing the carrier plate 221, at least two abutting protrusions 227 that abut against both sides of the same door panel 112 can be provided, so that the door panel 112 can be fixed and the door panel 112 can be used as a reference for adjusting the width of the folding gap 111; it can be understood that the abutting member (taking the cover plate 225 as an example) fixes one of the door panels 112 as a reference, and the adjacent other door panels 112 can move to adjust the width of the folding gap 111.

[0082] In some embodiments, the carrier plate 221 is provided with a first magnetic attracting member, and the abutting member is provided with a second magnetic attracting member. The first magnetic attracting member is used to attract the second magnetic attracting member to move the abutting member towards the carrier plate 221, so as to further improve the position stability of the hinge mechanism 110 on the carrier plate 221, which is beneficial to improving the imaging accuracy of the folding gap 111. Among them, the first magnetic attracting member and the second magnetic attracting member can be understood as substances that can provide a magnetic field or can be attracted by magnetic field lines. For example, the first magnetic attracting member and the second magnetic attracting member are respectively set as objects made of electromagnets, permanent magnets, iron, cobalt or nickel.

[0083] In some embodiments, referring to Figure 7 , the bracket 210 includes a bottom plate 211, the carrier plate 221 is arranged on the bottom plate 211 and is rotatably connected to the bottom plate 211. The rotation axis line N of the carrier plate 221 is parallel to the thickness direction of the carrier plate 221. For example, the rotation axis line N of the carrier plate 221 is parallel to the Z-axis direction in the figure. Among them, referring to Figure 15 , the bottom plate 211 and the carrier plate 221 can be rotatably connected through a bearing structure.

[0084] In this embodiment, the carrier plate 221 can be rotatably connected to the bottom plate 211, thereby improving the efficiency of changing the orientation of the hinge mechanism 110 and improving the operation efficiency of the operator.

[0085] In some embodiments, one of the bottom plate 211 and the carrier plate 221 is provided with a third positioning pin 255. After the bottom plate 211 and the carrier plate 221 rotate relative to each other by a preset angle (such as 180 degrees), the third positioning pin 255 is used to abut against the other of the bottom plate 211 and the carrier plate 221. For example, referring to Figure 7 and Figure 8 , the carrier plate 221 is provided with a third positioning pin 255. After the bottom plate 211 and the carrier plate 221 rotate relative to each other by a preset angle, the third positioning pin 255 is used to abut against the bottom plate 211. Of course, it can also be set that the bottom plate 211 is provided with a third positioning pin 255. After the bottom plate 211 and the carrier plate 221 rotate relative to each other by a preset angle, the third positioning pin 255 is used to abut against the carrier plate 221. This embodiment does not limit this.

[0086] In this embodiment, the third positioning pin 255 abuts against the bottom plate 211 or the carrier plate 221, thereby facilitating the improvement of the rotational position accuracy between the bottom plate 211 and the carrier plate 221, and facilitating the image acquisition device 240 to acquire an image of the hinge mechanism 110 with accurate orientation at a predetermined position.

[0087] In some embodiments, referring to Figure 7 , the other of the bottom plate 211 and the carrier plate 221 is provided with an arc-shaped groove 212, and the third positioning pin 255 extends into the arc-shaped groove 212; after the bottom plate 211 and the carrier plate 221 rotate relative to each other by a preset angle, the third positioning pin 255 abuts against the end of the arc-shaped groove 212, thereby more facilitating the improvement of the rotational position accuracy between the bottom plate 211 and the carrier plate 221, and more facilitating the image acquisition device 240 to acquire an image of the hinge mechanism 110 with accurate orientation at a predetermined position.

[0088] In some embodiments, referring to Figure 7 , the bottom plate 211 is provided with a third magnetic attraction member 213 and a fourth magnetic attraction member 214. A first virtual straight line is formed between the third magnetic attraction member 213 and the rotation axis N of the carrier plate 221, and a second virtual straight line is formed between the fourth magnetic attraction member 214 and the rotation axis of the carrier plate 221. The angle between the first virtual straight line and the second virtual straight line is equal to the above preset angle; for example, the preset angle can be set to 180 degrees.

[0089] The carrier plate 221 is provided with a fifth magnetic attraction member, and the fifth magnetic attraction member is respectively used to attract the third magnetic attraction member 213 or the fourth magnetic attraction member 214. The carrier plate 221 is used to rotate from the position where the fifth magnetic attraction member is disposed opposite to the third magnetic attraction member 213 to the position where the fifth magnetic attraction member is disposed opposite to the fourth magnetic attraction member 214.

[0090] Among them, the third magnetic attraction member 213, the fourth magnetic attraction member 214, and the fifth magnetic attraction member can be understood as substances that can provide a magnetic field or can be attracted by magnetic force lines. For example, the third magnetic attraction member 213, the fourth magnetic attraction member 214, and the fifth magnetic attraction member are respectively provided as objects made of electromagnets, permanent magnets, iron, cobalt, or nickel.

[0091] In this embodiment, the third magnetic attraction member 213, the fourth magnetic attraction member 214, and the fifth magnetic attraction member facilitate the improvement of the rotational position accuracy between the bottom plate 211 and the carrier plate 221, and facilitate the image acquisition device 240 to acquire an image of the hinge mechanism 110 with accurate orientation at a predetermined position.

[0092] In some embodiments, referring to Figure 7, a groove 222 is provided on the carrier plate 221, and the groove 222 is used to accommodate the hinge mechanism 110; the width direction of the hinge mechanism 110 is parallel to the width direction of the folding gap 111, and an activity gap is formed between the outer side in the width direction of the hinge mechanism 110 and the side wall of the groove 222, thereby improving the loading efficiency of the hinge mechanism 110. It can be understood that the groove 222 is wider than the hinge mechanism 110 in width, thus facilitating the loading of the hinge mechanism 110.

[0093] In some embodiments, through holes are provided on the side wall of the carrier plate 221, and the through holes communicate with the side wall surface of the groove 222, thereby facilitating the action on the hinge mechanism 110 in the groove 222 through the through holes, and thus improving the efficiency of changing the state of the hinge mechanism 110. For example, a screw for adjusting the width of the folding gap 111 on the hinge mechanism 110 is screwed through the through hole, or the hinge mechanism 110 is pushed to change its position.

[0094] In some embodiments, referring to Figure 13 and Figure 14 , the through hole includes a flared section 223 and a guiding section 224, and the guiding section 224 communicates with the side wall surface of the groove 222; the flared section 223 is arranged on the side of the guiding section 224 away from the groove 222, and the diameter of the flared section 223 increases in the direction away from the guiding section 224, and the diameter of the guiding section 224 is less than or equal to the minimum diameter of the flared section 223. Among them, the flared section 223 can be integrally arranged in a conical shape, a semi-ellipsoidal shape, a semi-circular shape, etc., and the guiding section 224 can be arranged in a straight cylindrical shape, etc.

[0095] In this embodiment, the flared section 223 facilitates the entry of adjustment tools such as screwdrivers, and the guiding section 224 can adjust the posture of the adjustment tools such as screwdrivers after entry, thereby further improving the efficiency of changing the state of the hinge mechanism 110. For example, through the through hole and adjustment tools such as screwdrivers, the screw for adjusting the width of the folding gap 111 on the hinge mechanism 110 is screwed to change the state of the hinge mechanism 110.

[0096] In some embodiments, referring to Figure 11 , the image acquisition device 240 and the bar light source 230 are arranged side by side along the length direction of the folding gap 111, thereby improving the structural compactness of the hinge gap detection device 200.

[0097] In some embodiments, referring to Figure 11 , the hinge gap detection device 200 includes two bar light sources 230 arranged at intervals along the length direction of the folding gap 111, and the image acquisition device 240 is arranged between the two bar light sources 230, thereby improving the structural compactness of the hinge gap detection device 200 and the illumination brightness of the folding gap 111.

[0098] In some embodiments, referring to Figure 11 , the hinge gap detection device 200 includes at least two image acquisition devices 240. The image acquisition devices 240 are arranged along the length direction of the folding gap 111, so as to facilitate obtaining a complete image of the folding gap 111 by means of image stitching, reducing the shooting range requirements of the image acquisition devices 240 and reducing the equipment cost of the image acquisition devices 240.

[0099] In some embodiments, along the length direction of the folding gap 111, the shooting ranges of the image acquisition devices 240 on the hinge mechanism 110 partially overlap, so as to be able to obtain a complete image of the folding gap 111.

[0100] In some embodiments, along the length direction of the folding gap 111, the light ranges of the two strip light sources 230 on the hinge mechanism 110 at least partially overlap, so as to facilitate improving the overall brightness of the hinge mechanism 110 and the folding gap 111, which is beneficial to improving the imaging quality.

[0101] In some embodiments, referring to Figure 16 , the hinge gap detection device 200 further includes an image recognition device and a display device (such as a display). The image recognition device is used to recognize at least one boundary F of the folding gap 111 according to the gap image; the display device is used to display a first boundary line F on the gap image according to the recognized boundary of the folding gap 111, and the display device is further used to display a second boundary line G on the gap image according to a preset gap value; wherein, the preset gap value can be set to the required width of the folding gap 111. For example, referring to Figure 16 , the operator can adjust the width of the folding gap 111 according to the relationship between the other boundary of the actual folding gap 111 and the second boundary line G, for example, adjusting from the width W1 in Figure 16 to the width W2.

[0102] In some embodiments, a second guide rail structure is provided between the bracket 210 and the carrier 220. The extending direction of the second guide rail structure is parallel to the surface of the carrier 220. The bracket 210 is used to move relative to the carrier 220 through the second guide rail structure, thereby improving the efficiency of loading and unloading the hinge mechanism 110.

[0103] The above is only the specific embodiment of the present application. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present application, and all of them should be covered by the protection scope of the present application. The protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A hinge gap detection device, characterized in that: The hinge gap detection device is used to detect the folding gap of the hinge mechanism of the foldable electronic device, and the hinge gap detection device includes: Bracket; A carrier, the carrier is arranged on the bracket, and the carrier is used to carry the hinge mechanism; A strip light source, the strip light source is arranged on the carrier, the light line of the strip light source is used to illuminate the folding gap, and the light line of the strip light source is parallel to the folding gap; An image acquisition device is disposed on the bracket, and is used to acquire a gap image of the folding gap.

2. The hinge gap detection device according to claim 1, characterized in that: The carrier includes a carrier plate and an abutment member, wherein the carrier plate is arranged on the bracket, and the carrier plate is used to place the hinge mechanism and make the length direction of the folding gap parallel to the plate surface of the carrier plate; the abutment member is detachably fixedly connected to the carrier plate, and the abutment member is used to abut the hinge mechanism along a direction parallel to the width of the folding gap.

3. The hinge gap detection device according to claim 2, characterized in that: The abutment member is configured as a cover plate; the hinge mechanism is configured between the cover plate and the carrier plate parallel to the thickness direction of the cover plate; a penetrating structure is configured on the cover plate, the penetrating structure penetrates the thickness of the cover plate, and the penetrating structure is configured to be disposed opposite to the folding gap.

4. The hinge gap detection device according to claim 2, characterized in that: The hinge mechanism comprises at least two door panels arranged at intervals, and the folding gap is formed between the adjacent door panels; the abutment member is provided with an abutment protrusion on one side facing the carrier plate, and the abutment protrusion is used to at least partially extend into the folding gap; the carrier plate and the abutment member are limitedly matched, so that the abutment member can move along the thickness direction of the carrier plate and limit the movement of the abutment member perpendicular to the thickness direction of the abutment member; The abutting protrusion is provided with an abutting inclined surface on one side facing the carrier plate, and the abutting inclined surface is used to abut against the edge of the door panel; and / or, one side edge of the door panel forms a chamfer, and the abutting protrusion is used to abut against the chamfer.

5. The hinge gap detection device according to claim 4, characterized in that: The carrier plate is provided with a first magnetic attraction member, and the contact member is provided with a second magnetic attraction member. The first magnetic attraction member is used to attract the second magnetic attraction member to move the contact member toward the carrier plate.

6. The hinge gap detection device according to claim 4, characterized in that: The carrier plate is provided with a groove, and the groove is used to accommodate the hinge mechanism; The width direction of the hinge mechanism is parallel to the width direction of the folding gap, and the outer side of the hinge mechanism in the width direction is used to form an active gap with the side wall of the groove.

7. The hinge gap detection device according to claim 6, characterized in that: The side wall of the carrier plate is provided with a through hole, and the through hole is connected to the side wall surface of the groove.

8. The hinge gap detection device according to claim 7, characterized in that: The through hole includes a flaring section and a guide section, the guide section is connected to the side wall of the groove; the flaring section is arranged on a side of the guide section away from the groove, the diameter of the flaring section increases in a direction away from the guide section, and the diameter of the guide section is less than or equal to the minimum diameter of the flaring section.

9. The hinge gap detection device according to claim 4, characterized in that: One of the carrier plate and the abutment is provided with a first positioning pin, and the other of the carrier plate and the abutment is provided with a positioning hole; the first positioning pin is extended along the thickness direction of the carrier plate, and the first positioning pin is sleeved in the positioning hole; the peripheral wall of the first positioning pin abuts against the hole wall of the positioning hole, so that the abutment can move along the thickness direction of the carrier plate and limit the movement of the abutment perpendicular to the thickness direction of the abutment.

10. The hinge gap detection device according to claim 9, characterized in that: One of the carrier plate and the abutment member is provided with a second positioning pin, and the other of the carrier plate and the abutment member is provided with a positioning recess, and the diameter of the inscribed circle of the positioning recess is greater than the diameter of the second positioning pin.

11. The hinge gap detection device according to claim 3, characterized in that: The cover plate further includes a solid portion, the solid portion and the through structure are arranged along the length direction of the folding slit, and the angle between the extension direction of the strip light source and the length direction of the folding slit is greater than or equal to 70 degrees and less than or equal to 90 degrees; And / or, the image acquisition device and the strip light source are arranged in an array along the length direction of the folding gap; the hinge gap detection device comprises two strip light sources spaced apart along the length direction of the folding gap, and the image acquisition device is arranged between the two strip light sources; and / or, The hinge gap detection device comprises at least two image acquisition devices, which are arranged along the length direction of the folding gap; along the length direction of the folding gap, the shooting ranges of the image acquisition devices on the hinge mechanism partially overlap; and / or, Along the length direction of the folding gap, the light ranges of the two strip-shaped light sources on the hinge mechanism at least partially overlap.

12. The hinge gap detection device according to any one of claims 1 to 11, characterized in that: The carrier includes a carrier plate, which is arranged on the bracket, and is used to place the hinge mechanism and make the length direction of the folding gap parallel to the plate surface of the carrier plate; The bracket comprises a bottom plate, the carrier plate is arranged on the bottom plate and is rotatably connected to the bottom plate, and the rotation axis of the carrier plate is parallel to the thickness direction of the carrier plate.

13. The hinge gap detection device according to claim 12, characterized in that: One of the bottom plate and the carrier plate is provided with a third positioning pin, and after the bottom plate and the carrier plate are relatively rotated by a preset angle, the third positioning pin is used to abut against the other of the bottom plate and the carrier plate.

14. The hinge gap detection device according to claim 13, characterized in that: The other of the bottom plate and the carrier plate is provided with an arc groove, and the third positioning pin extends into the arc groove; after the bottom plate and the carrier plate are relatively rotated by a preset angle, the third positioning pin abuts against the end of the arc groove.

15. The hinge gap detection device according to claim 14, characterized in that: A third magnetic member and a fourth magnetic member are provided on the bottom plate, a first virtual straight line is formed between the third magnetic member and the rotation axis of the carrier plate, a second virtual straight line is formed between the fourth magnetic member and the rotation axis of the carrier plate, and an angle between the first virtual straight line and the second virtual straight line is equal to the preset angle; A fifth magnetic component is provided on the carrier plate, and the fifth magnetic component is used to attract the third magnetic component or the fourth magnetic component respectively. The carrier plate is used to rotate from a position where the fifth magnetic component and the third magnetic component are relatively arranged to a position where the fifth magnetic component and the fourth magnetic component are relatively arranged.

16. The hinge gap detection device according to any one of claims 1 to 11, characterized in that: A first guide rail structure is provided between the image acquisition device and the bracket, the extension direction of the first guide rail structure intersects with the bearing surface of the carrier, and the image acquisition device is used to move in a direction toward or away from the carrier via the first guide rail structure; The hinge gap detection device further includes a first locking structure, which is used to limit the movement of the image acquisition device toward or away from the carrier.

17. The hinge gap detection device according to claim 16, characterized in that: The first guide rail structure includes a guide rail body and a guide groove, the extension direction of the guide rail body intersects with the bearing surface of the carrier, and the guide groove is slidably connected to the guide rail body; one of the bracket and the image acquisition device is provided with the guide rail body, and the other of the bracket and the image acquisition device is provided with the guide groove; The other of the bracket and the image acquisition device is also provided with a strip groove, which is spaced apart from the guide groove and forms an abutment sheet between the strip groove and the guide groove; the first locking structure is used to move the abutment sheet toward the guide rail body to limit the sliding between the guide groove and the guide rail body.

18. The hinge gap detection device according to any one of claims 1 to 11, characterized in that: The hinge gap detection device further comprises a lateral light source, which is arranged on the bracket and beside the image acquisition device, and is used to illuminate the hinge mechanism.

19. The hinge gap detection device according to claim 18, characterized in that: The side light source is rotatably connected to the bracket, and the rotation axis of the side light source is parallel to the light line of the strip light source; The hinge gap detection device further includes a second locking structure, and the second locking structure is used to limit the rotation of the lateral light source relative to the bracket.

Images