CN112526755B - Head-mounted display device and multiple anti-collision protection structure thereof - Google Patents
Head-mounted display device and multiple anti-collision protection structure thereof Download PDFInfo
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0176—Head mounted characterised by mechanical features
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
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- 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
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1417—Mounting supporting structure in casing or on frame or rack having securing means for mounting boards, plates or wiring boards
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Abstract
The application discloses multiple anticollision protective structure, including the lens cone support that is used for installing ray apparatus subassembly, set up on the preceding terminal surface of lens cone support and be used for installing PCB's main support board, still include along circumference cladding in lens cone support surface, be used for absorbing the outer lag of side wall along its side direction transmission's collision energy, and even as an organic whole and cover in main support plate front surface along circumference and the outer lag of side wall, be used for absorbing the outer guard plate of preceding wall along its vertical transmission's collision energy. So, through the outer lag of side wall and before enclose the synergism of outer guard plate, can absorb respectively and weaken along the side direction of wearing display device and the collision energy of forward transmission when wearing display device to fall to ground, can effectively improve the structure fail safe nature of wearing display device, avoid inside spare part to damage because of the impact vibration that the collision produced when wearing display device to fall. The application also discloses a head-mounted display device, which has the beneficial effects as described above.
Description
Technical Field
The application relates to the technical field of wearable equipment, in particular to a multiple anti-collision protection structure. The application also relates to a head-mounted display device.
Background
With the development of virtual reality and augmented reality technologies, more and more head-mounted display devices have been widely used.
The AR (Augmented Reality) technology is a technology that skillfully fuses virtual information and the real world, and a plurality of technical means such as multimedia, three-dimensional modeling, real-time tracking and registration, intelligent interaction, sensing and the like are widely applied, and virtual information such as characters, images, three-dimensional models, music, videos and the like generated by a computer is applied to the real world after analog simulation, and the two kinds of information complement each other, thereby realizing the 'enhancement' of the real world.
VR (Virtual Reality) technology is a computer simulation system that creates and experiences Virtual worlds, which uses computers to create a simulated environment into which a user is immersed. The virtual reality technology is that data in real life is utilized, and electronic signals generated by computer technology are combined with various output devices to convert the electronic signals into phenomena which can be felt by people.
In the field of head-mounted display devices, more and more products are on the market, and various head-mounted and glasses-type product forms are continuously appeared. At present, AR and VR products are more and more light-weighted, AR and VR products in the form of glasses are more and more mainstream in the market, and the structural safety and reliability of the head-mounted display device gradually become design keys. At present, important parts such as optical machine assemblies, lenses and PCBs are installed in the front-end head area, and other parts such as glasses legs and heat dissipation parts are installed in the rear-end tail area, so that the head-mounted display device forms a structure with heavy head and light tail, namely the heavy head and the light foot. In the using process, due to the influence of the limb actions and the wearing angle of the user, the head-mounted display device may fall off from the body of the user, and further the head-mounted display device impacts the bottom surface, so that the damage or the function failure is caused.
In the prior art, the impact risk is often avoided by a design mode of rigidizing and strengthening the shell of the head-mounted display device, however, after the operation, the shell can be prevented from being damaged, but the more important parts inside the shell can still be damaged due to the impact vibration transmitted by the shell.
Therefore, how to improve the structural safety and reliability of the head-mounted display device and avoid the damage of internal parts due to impact vibration when the head-mounted display device falls is a technical problem faced by those skilled in the art.
Disclosure of Invention
The utility model provides a multiple anticollision protective structure can improve the structure fail safe nature who wears display device, avoids inside spare part to damage because of the striking vibration when wearing display device to fall. It is another object of the present application to provide a head mounted display device.
In order to solve the technical problem, the application provides a multiple anticollision protective structure, including be used for installing ray apparatus subassembly the lens cone support, set up in be used for installing PCB's main support board on lens cone support's the preceding terminal surface, still include along circumference cladding in lens cone support surface, be used for absorbing the outer lag of side wall along its side direction transmission's collision energy, and along circumference with the outer lag of side wall even as an organic whole and cover in before main support board front surface, be used for absorbing along its vertical transmission collision energy enclose outer guard plate.
Preferably, the outer protective cover of side body and/or the front wall outer protective plate have elasticity.
Preferably, the front surface of the cowl outer panel is protrudingly provided with a protrusion for extending an amount of elastic deformation thereof, and the protrusion is distributed at a surface edge thereof in a circumferential direction of the cowl outer panel.
Preferably, the side body middle layer protective ring is arranged in the side body outer layer protective sleeve, sleeved on the outer surface of the lens cone support and used for absorbing collision energy transmitted along the lateral direction of the lens cone support.
Preferably, the inner wall of the side wall middle layer protective ring is connected with the outer surface of the lens cone bracket through a plurality of connecting ribs so as to reserve a deformation space for the elastic deformation of the side wall middle layer protective ring.
Preferably, the outer surface of the lens barrel support is circumferentially provided with a plurality of plugging grooves, and the tail end of each connecting rib is a plug board which is vertically plugged with the plugging grooves.
Preferably, the front wall structure further comprises a front wall middle layer protection plate which is arranged on the front surface of the main support plate, is abutted against the back surface of the front wall outer layer protection plate and is used for absorbing collision energy transmitted along the vertical direction of the front wall middle layer protection plate.
Preferably, a plurality of connecting columns are arranged on two sides of the front surface of the main support plate in the length direction, and the back surface of the front wall middle layer protection plate is connected with the main support plate through the connecting columns.
Preferably, the front surface of the front wall middle layer protection plate is provided with a plurality of reinforcing rib plates for improving the structural strength.
Preferably, the lens cone support comprises side wall inner layer protective cylinders which are distributed in the circumferential direction, connected with the inner wall of the side wall middle layer protective ring and used for absorbing collision energy transmitted along the lateral direction of the side wall inner layer protective cylinders.
Preferably, the front wall inner layer protection column comprises a plurality of front wall inner layer protection columns which are vertically arranged on the front surface of the main support plate, the tail ends of the front wall inner layer protection columns are used for being abutted to the back surface of the front wall middle layer protection plate and used for absorbing collision energy vertically transmitted along the front wall inner layer protection columns.
Preferably, each before enclose the lateral wall of inlayer protection post all overlap and be used for with install the mounting hole cooperation of reserving on the PCB of main tributary frame plate front surface, be used for slowing down the pre-compaction elastic ring that circumference was strikeed.
Preferably, pre-pressed elastic pads for absorbing impact energy transmitted in a vertical direction of the main bracket plate are filled between the front surface of the main bracket plate and the back surface of the PCB and between the front surface of the PCB and the back surface of the front wall middle layer protection plate.
The application also provides a head-mounted display device, including the equipment main part with set up in the peripheral multiple crashproof protective structure of equipment main part, wherein, multiple crashproof protective structure specifically is above-mentioned arbitrary multiple crashproof protective structure.
The application provides a multiple anticollision protective structure mainly includes lens cone support, main support plate, the outer lag of side wall and encloses outer guard plate before. The lens cone support is mainly used for mounting the optical machine assembly, the main support plate is arranged on the front end face of the lens cone support and is mainly used for mounting a PCB (printed circuit board), various functional modules of the head-mounted display device are integrated on the PCB and are in signal connection with the optical machine assembly, and the optical machine assembly and the PCB are main internal parts of the head-mounted display device. The outer protective sleeve of the side wall is coated on the outer surface of the lens cone bracket along the circumferential direction of the lens cone bracket and is mainly used for absorbing collision energy generated in the collision process and transmitted along the lateral direction (horizontal and transverse direction) of the head-mounted display equipment, so that the part of the collision energy is weakened, the collision energy transmitted to the lens cone bracket is reduced, and parts such as optical-mechanical assemblies and the like installed in the lens cone bracket are prevented from being damaged due to impact vibration generated by collision. The front wall outer protection plate is arranged on the front surface of the main support plate and completely covers the front surface, and the front wall outer protection plate extends to the outer protection sleeve connected with the rear side wall from the circumferential direction of the main support plate, so that the front wall outer protection plate and the rear wall outer protection plate form an integrated seamless cap type semi-surrounding structure. Meanwhile, the front wall outer layer protection plate is mainly used for absorbing collision energy transmitted along the forward direction (vertical direction) of the head-mounted display device when the collision occurs, so that the part of the collision energy is weakened, the collision energy transmitted to the main support plate is reduced, and parts such as a PCB (printed circuit board) mounted in the front wall outer layer protection plate are prevented from being damaged due to impact vibration generated by collision. So, the multiple anticollision protective structure that this application provided through the outer lag of side wall and before enclose the synergism of outer guard plate, can be when wearing that display device accident falls to producing the striking with ground, absorb respectively and weaken along the side direction of wearing display device and the collision energy of forward transmission, can effectively improve the structure fail safe nature who wears display device, avoids inside spare part to damage because of the impact vibration that the collision produced when wearing display device to fall.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic overall structure diagram of an embodiment provided in the present application.
Fig. 2 is a longitudinal half-sectional view of fig. 1.
Fig. 3 is a partial structural schematic diagram of fig. 2.
Fig. 4 is a schematic view of the overall structure of fig. 3.
Fig. 5 is a partial structure diagram of fig. 4.
Fig. 6 is an assembly structure view of the lens cone bracket and the outer layer protective cover of the side wall.
Fig. 7 is an assembly structural view of the main holder plate and the barrel holder.
Fig. 8 is a concrete structural schematic diagram of the outer-layer side wall protective cover and the outer-layer front wall protective plate.
Fig. 9 is a schematic structural view of the middle layer guard ring of the side wall.
Fig. 10 is a specific structural schematic diagram of the inner layer protection tube of the side wall.
Fig. 11 is a schematic structural view of the dash middle layer guard plate.
Fig. 12 is a detailed structural schematic view of the cowl inner protective pillar.
Fig. 13 is a schematic view of the mounting structure of the pre-pressed elastic pad on the PCB.
Wherein, in fig. 1-13:
PCB-a, mounting hole-b;
the protective device comprises a lens cone support-1, a main support plate-2, a side wall outer layer protective sleeve-3, a front wall outer layer protective plate-4, a side wall middle layer protective ring-5, a front wall middle layer protective plate-6, a side wall inner layer protective cylinder-7, a front wall inner layer protective column-8, a pre-pressed elastic ring-9 and a pre-pressed elastic pad-10;
the structure comprises a connecting slot-11, a connecting column-21, a convex part-41, a connecting rib-51, a connecting plate-52 and a reinforcing rib plate-61;
a central portion-611, side edge portions-612.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1 to 5, fig. 1 is a schematic overall structure diagram of an embodiment provided in the present application, fig. 2 is a longitudinal half-sectional view of fig. 1, fig. 3 is a schematic partial structure diagram of fig. 2, fig. 4 is a schematic overall structure diagram of fig. 3, and fig. 5 is a schematic partial structure diagram of fig. 4.
In the first embodiment that the application provided, multiple anticollision protective structure mainly includes lens cone support 1, main support board 2, outer lag 3 of side wall and preceding wall outer guard plate 4.
The lens cone support 1 is mainly used for mounting an optical mechanical assembly, the main support plate 2 is arranged on the front end face of the lens cone support 1 and is mainly used for mounting a PCBa, various functional modules of the head-mounted display device are integrated on the PCBa and are in signal connection with the optical mechanical assembly, and the optical mechanical assembly and the PCBa are main internal parts of the head-mounted display device.
The outer protective sleeve 3 of the side wall is coated on the outer surface of the lens cone support 1 along the circumferential direction of the lens cone support and is mainly used for absorbing collision energy generated in the collision process and transmitted along the lateral direction (horizontal and transverse direction) of the head-mounted display device, so that the part of the collision energy is weakened, the collision energy transmitted to the lens cone support 1 is reduced, and parts such as optical-mechanical assemblies and the like installed in the lens cone support are prevented from being damaged due to impact vibration generated by collision.
Enclose outer guard plate 4 before and set up on main support plate 2's front surface and cover it completely, and enclose outer guard plate 4 before and extend to from main support plate 2's circumferential direction and be connected with the outer lag 3 of side wall at rear, make both form integrated seamless joint's cap type and partly surround the structure. Meanwhile, the front wall outer layer protection plate 4 is mainly used for absorbing collision energy transmitted along the forward direction (vertical direction) of the head-mounted display device generated when the collision occurs, so that the part of the collision energy is weakened, the collision energy transmitted to the main support plate 2 is reduced, and parts such as PCBa and the like mounted in the front wall outer layer protection plate are prevented from being damaged due to impact vibration generated by collision.
So, the multiple anticollision protective structure that this embodiment provided, through the outer lag 3 of side wall and the before enclose the synergism of outer guard plate 4, consider the atress model that collides with ground when wearing display device accidental falls, no matter what kind of angle strikes subaerially, all will form the impact force to the head end of wearing display device (the tail end is the end of wearing, the probability of colliding with ground is very low, can ignore this kind of condition), this impact force can be along wearing display device's side direction and forward component decomposition, thereby can wear when falling to producing the striking with ground in the accident of display device, absorb along wearing display device's side direction and forward transmission's collision energy through outer lag 3 of side wall and preceding outer guard plate 4 of wall respectively, form side direction and forward outer protection to wearing display device, can effectively improve head-mounted display device's structure fail-safe nature, avoid inside spare part to wear the impact vibration that the collision produced when display device falls and damage.
As shown in fig. 8, fig. 8 is a specific structural schematic diagram of the outer side body protecting cover 3 and the outer front wall protecting plate 4.
In a preferred embodiment regarding the cowl outer layer guard plate 4, in order to conveniently achieve the absorption of the collision energy transmitted in the lateral direction of the lens barrel support 1 by the cowl outer layer guard plate 4, the cowl outer layer guard plate 4 is embodied as an elastic plate, so that the collision energy can be absorbed by the elastic deformation of the cowl outer layer guard plate 4. In a similar way, the outer-layer side-body protecting sleeve 3 is specifically an elastic sleeve, so that collision energy can be absorbed through elastic deformation of the outer-layer side-body protecting sleeve 3.
Certainly, the outer protective cover 3 of side wall and preceding enclose outer guard plate 4 and subsequent side wall middle level guard ring 5, preceding enclose middle level guard plate 6, side wall inlayer protective cylinder 7, preceding enclose parts such as inlayer protective column 8 to the absorption mode of collision energy, not only be limited to the above-mentioned mode through elastic deformation and absorb, all the other modes such as collapsing, shearing destruction through the structure can reach the purpose of absorbing collision energy equally.
Further, the present embodiment is provided with the convex portion 41 protruding on the front surface (the forward outside surface) of the front wall outer shield plate 4 in consideration of the fact that the impact force of a fall is smaller if the fall buffering time is longer and the reliability of the structural collision is higher in the case where the falling momentum is uniform. Specifically, enclose outer guard plate 4's local thickness before this bellying 41 mainly used thickening to when making before enclose outer guard plate 4 and ground striking production elastic deformation, can be in 41 regional departments of bellying lead with ground production striking contact, then just together carry out elastic deformation with the plane region, consequently can prolong before enclose outer guard plate 4's elastic deformation volume, before improving enclose the contact time of outer guard plate 4 and ground striking.
Further, in this embodiment, the bellying 41 specifically distributes in its surface border position along the circumferential direction of preceding outer guard plate 4, so set up, the central zone of preceding outer guard plate 4 is the planar zone, and the circumferential border zone of preceding outer guard plate 4 is the bellying, form the low sunk structure in high center all around on the front surface of preceding outer guard plate 4, thereby when colliding with ground production, the bellying 41 through the circumferential border zone absorbs some impact collision energy first, pass through the planar zone absorption some collision energy of central zone again, and then reduce the amount of the sunken deformation of the central zone of preceding outer guard plate 4.
In the second embodiment that this application provided, multiple anticollision protective structure still includes side wall middle level guard ring 5 and preceding wall middle level guard plate 6 except including lens cone support 1, main support board 2, the outer lag of side wall 3 and preceding wall outer guard plate 4 to wear display device formation side direction and forward middle level protection to through side wall middle level guard ring 5 and preceding wall middle level guard plate 6 respectively.
As shown in fig. 6, fig. 6 is an assembly structure view of the lens barrel holder 1 and the side-surrounding outer-layer protection cover 3.
The side wall middle layer protection ring 5 is sleeved on the outer surface of the lens cone support 1 and embedded in the side wall outer layer protection sleeve 3, and is mainly used for further absorbing collision energy transmitted along the lateral direction. Similar to the outer-layer protecting jacket 3 of the side wall, the middle-layer protecting ring 5 of the side wall also has elasticity, so that the collision energy can be absorbed in an elastic deformation mode. So set up, along the impact vibration energy of side direction transmission, at first carry out the buffering absorption back through the elastic deformation of outer lag 3 of side wall, can carry out further buffering absorption through the elastic deformation of middle level guard ring 5 of rethread side wall immediately to weaken the side direction collision energy of transmission on lens cone support 1 to a great extent.
As shown in fig. 9, fig. 9 is a schematic structural view of the middle protective ring 5 in the side wall.
In order to ensure that the side wall middle layer protection ring 5 can smoothly perform elastic deformation and absorb collision energy, in this embodiment, the inner wall of the side wall middle layer protection ring 5 is provided with a plurality of connecting ribs 51 along the circumferential direction, and the tail end of each connecting rib 51 is connected to the outer surface of the lens cone bracket 1 respectively, so that a circle of annular space is formed between the side wall middle layer protection ring 5 and the lens cone bracket 1, and the side wall middle layer protection ring 5 can perform elastic deformation (mainly inwards concave) by using the annular space.
Further, in order to facilitate the connection between the connecting ribs 51 and the lens barrel holder 1, in the present embodiment, a plurality of inserting grooves 11 are formed in the outer surface of the lens barrel holder 1 along the circumferential direction, and simultaneously, a inserting plate 52 is provided at the end of each connecting rib 51. The patch panel 52 is mainly used to mate with the corresponding patch slot 11 to form a patch connection. Moreover, for the convenience of assembly and disassembly, the opening of each insertion slot 11 faces to the vertical direction, such as vertically upward, so that when the side wall middle layer protection ring 5 is installed, the insertion plate 52 at the end of each connecting rib 51 can be inserted into the corresponding insertion slot 11 vertically downward.
As shown in fig. 11, fig. 11 is a detailed structural schematic view of the dash middle layer guard plate 6.
About preceding enclose middle level guard plate 6, this preceding enclose middle level guard plate 6 setting on main support plate 2's front surface, be located main support plate 2's dead ahead to keep the butt with the back of preceding enclosing outer layer guard plate 4, mainly used further absorbs the collision energy along the forward transmission. Like the cowl outer guard plate 4, the cowl middle guard plate 6 may also have elasticity so that collision energy may be absorbed by means of elastic deformation. So set up, along the collision energy of forward transmission, at first through before enclose the elastic deformation of outer guard plate 4 and cushion and absorb the back, can enclose elastic deformation of middle level guard plate 6 immediately before the rethread and further cushion and absorb to weaken the forward collision energy of transmitting on main support board 2 to a great extent.
For the installation of preceding enclose middle level guard plate 6 on main support plate 2 front surface before convenient, this embodiment has set up a plurality of spliced pole 21 on main support plate 2's front surface, makes before simultaneously enclose the back of middle level guard plate 6 and link to each other with main support plate 2 through each spliced pole 21. Specifically, the connecting posts 21 are distributed on the front surface of the main support panel 2 along the length direction thereof, for example, two connecting posts are distributed on the left side and the right side of the figure, and the corresponding positions on the two sides of the front wall middle layer protection plate 6 in the length direction can be in threaded connection with the corresponding connecting posts 21 through fasteners such as screws and bolts.
Further, when elastic deformation is performed on the front wall middle layer protection plate 6, due to the fact that the mechanical model of the front wall middle layer protection plate is a structure that the middle of the front wall middle layer protection plate is suspended in the middle and supported by supporting points on two sides, the elastic deformation amount of the two side areas in the length direction of the front wall middle layer protection plate 6 is small, the elastic deformation amount of the middle area in the length direction is large, the whole deformation amount of the front wall middle layer protection plate 6 is balanced as much as possible, and a plurality of reinforcing rib plates 61 are arranged on the front surface of the front wall middle layer protection plate 6 in a protruding mode in the embodiment.
Specifically, each reinforcing rib plate 61 extends along the length direction of the dash panel middle guard plate 6, and each reinforcing rib plate 61 may be hierarchically distributed along the height direction (or width direction) of the dash panel middle guard plate 6. Each rib plate 61 can be divided into three parts along the length direction, namely, a central part 611 located in the central area of the length direction and side parts 612 located in the two side areas of the length direction, the protruding height of the central part 611 is high, and the protruding height of the side parts 612 is low, so that the whole rib plate 61 forms an isosceles trapezoid shape. So set up, each deep floor 61 is the highest to the regional degree of enhancement of the length direction center of preceding enclosing middle level guard plate 6, and is lower to the regional degree of enhancement of the length direction both sides of preceding enclosing middle level guard plate 6 to enclose middle level guard plate 6 before receive the forward collision and when elastic deformation, can suitably reduce before enclose the regional elastic deformation volume in length direction center of middle level guard plate 6, make its elastic deformation volume with the regional length direction both sides be close.
In the third embodiment that the application provided, multiple anticollision protective structure still includes a side wall inlayer protective cylinder 7 and a preceding wall inlayer protective column 8 except including lens cone support 1, main support board 2, the outer lag 3 of side wall, preceding wall outer guard plate 4, side wall middle level guard ring 5 and preceding wall middle level guard plate 6 to form side direction and forward inlayer protection to wearing display device respectively through side wall inlayer protective cylinder 7 and preceding wall inlayer protective column 8.
As shown in fig. 10, fig. 10 is a specific structural schematic diagram of the side wall inner layer protective sleeve 7.
The side wall inner layer protection barrel 7 is a main component structure of the lens barrel support 1, is generally located at two sides of the lens barrel support 1 in the length direction, is distributed in a long circle shape along the circumferential direction, and is connected with the inner wall of the side wall middle layer protection ring 5, for example, the end of the connecting rib 51 on the side wall middle layer protection ring 5 can be connected to the outer wall of the side wall inner layer protection barrel 7, and is mainly used for further absorbing collision energy transmitted along the lateral direction. Like the side wall middle layer protection ring 5, the side wall inner layer protection cylinder 7 can also have elasticity, so that the collision energy can be absorbed in an elastic deformation mode. So set up, along the collision energy of side direction transmission, at first carry out the buffering through the elastic deformation of outer lag 3 of side wall and absorb the back, carry out further buffering and absorb through the elastic deformation of side wall middle level guard ring 5 immediately, the elastic deformation of the protection section of thick bamboo 7 of side wall inlayer again at last absorbs to weaken the side direction collision energy of transmitting to lens cone support 1 by a wide margin.
As shown in fig. 7, fig. 7 is an assembly structure view of the main frame plate 2 and the lens barrel frame 1.
Enclose inlayer protection column 8 before and establish immediately on main support plate 2's front surface, its bottom is direct to link to each other with main support plate 2's front surface, and its end is perpendicular just right with the back that is located the preceding wall middle level guard plate 6 in main support plate 2 the place ahead, but under natural state, and not direct and preceding wall middle level guard plate 6's back forms the butt, but and before enclose between the back of middle level guard plate 6 and keep certain clearance, only enclose before 6 in the middle level guard plate receive the forward collision and when elastic deformation, its back just with before enclose the end of inlayer protection column 8 and keep the butt. Meanwhile, each of the cowl inner protective pillars 8 is mainly used to further absorb the collision energy transmitted in the forward direction. Each of the cowl inner layer guard posts 8 may also have elasticity, similar to the cowl middle layer guard plate 6, so that collision energy may be absorbed by means of elastic deformation. So set up, along the collision energy of forward transmission, at first through before enclose outer guard plate 4's elastic deformation buffer absorption back, immediately through before enclose middle level guard plate 6's elastic deformation carry out further buffer absorption, at last through before enclose inner protective column 8's elastic deformation again buffer absorption to weaken the forward collision energy of transmitting on main support board 2 by a wide margin.
As shown in fig. 12, fig. 12 is a detailed structural schematic view of the cowl inner guard post 8.
When considering that the collision energy who passes along the forward transmission advances preceding outer guard plate 4 of enclosing, because the effect of bellying 41, make preceding enclose the both sides region of the length direction of middle level guard plate 6 earlier carry out elastic deformation, and central area carries out elastic deformation behind, for cooperating with this, in this embodiment, preceding enclose inner protective column 8 and be provided with a plurality ofly on main support panel 2's front surface simultaneously, and, each preceding encloses inner protective column 8 and distributes along main support panel 2's length direction, for example all be provided with two etc. in main support panel 2's the length direction's the left and right sides and central area. Simultaneously, the clearance that is located before the preceding end of enclosing inlayer protection column 8 of both sides about the picture drawing and encloses the back of middle level guard plate 6 before is less than the clearance that is located before the central zone of picture drawing enclose the end of inlayer protection column 8 and enclose the back of middle level guard plate 6 before, and the height that is located the preceding height of enclosing inlayer protection column 8 of main support plate 2 length direction central zone promptly is less, and the height that is located the preceding enclosing inlayer protection column 8 of main support plate 2 length direction both sides region is great. So set up, when enclosing middle level guard plate 6 and receive the forward collision and elastic deformation, its length direction both sides region will take first with the collision energy transfer to corresponding both sides regional preceding enclose inlayer protective column 8 on, then with the collision dress energy transfer to corresponding central area preceding enclose inlayer protective column 8 on to maintain structure energy-absorbing homogeneity.
As shown in fig. 13, fig. 13 is a schematic view of the mounting structure of the pre-pressed resilient pad 10 on the PCBa.
Further, considering that the PCBa is generally installed in front of the front surface of the main bracket board 2, and the front wall middle layer protection board 6 is disposed in front of the PCBa through the connection column 21, in order to avoid that the center area of the front wall middle layer protection board 6 directly collides with the PCBa when generating elastic deformation, the pre-pressing elastic pad 10 is stuffed between the length direction center area of the front surface of the PCBa and the length direction center area of the back surface of the front wall middle layer protection board 6 in the embodiment. Specifically, this pre-compaction cushion 10 has elasticity to compress through the pretightning force in advance, insert again and establish into PCBa and before enclose in the gap between the middle level guard plate 6, thereby make before enclose middle level guard plate 6 when carrying out elastic deformation, can avoid direct and PCBa contact, but contact with pre-compaction cushion 10, and utilize pre-compaction cushion 10's elastic deformation to weaken and absorb collision energy less degree.
Similarly, another pre-pressing elastic pad 10 is stuffed between the length direction central area at the back of the PCBa and the length direction central area at the front surface of the main bracket plate 2 in the embodiment, so that the pre-pressing elastic pads 10 are arranged on the front surface and the back of the PCBa, and the specific setting positions of the two pre-pressing elastic pads 10 can correspond to each other, so that the symmetrical damping effect is achieved, the weakening and absorption effects on collision energy are enhanced, and the PCBa is prevented from generating too large vibration amplitude under the action of forward collision.
In addition, considering that each front wall inner layer protection column 8 is arranged between the main support plate 2 and the front wall middle layer protection plate 6 and inevitably passes through the PCBa midway, in order to avoid interference, in the present embodiment, each front wall inner layer protection column 8 is respectively installed at the corresponding position of each reserved installation hole b on the PCBa, so that each front wall inner layer protection column 8 can pass through the corresponding installation hole b. And, this embodiment still encloses all the cover on the lateral wall of inlayer protection post 8 before each and is equipped with pre-compaction elastic ring 9, it is concrete, this pre-compaction elastic ring 9 has elasticity, and compress through the pretightning force in advance, install into in each mounting hole b again, thereby with mounting hole b's inner wall butt, play circumference damping effect, and then when receiving side direction collision, utilize pre-compaction elastic ring 9's elastic deformation to weaken and absorb collision energy less degree, prevent that PCBa's vibration amplitude is too big, the frequency is too high.
The embodiment further provides a head-mounted display device, which mainly comprises a device main body and a multiple anti-collision protection structure arranged on the outer ring of the device main body, wherein the specific content of the multiple anti-collision protection structure is the same as the related content, and the description is omitted here.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A multiple anti-collision protection structure comprises a lens cone support (1) used for mounting an optical machine assembly, a main support plate (2) arranged on the front end face of the lens cone support (1) and used for mounting a PCB (a), and is characterized by further comprising a side wall outer layer protection cover (3) which is circumferentially coated on the outer surface of the lens cone support (1) and used for absorbing collision energy transmitted along the lateral direction of the lens cone support, and a front wall outer layer protection plate (4) which is circumferentially connected with the side wall outer layer protection cover (3) into a whole and covers the front surface of a main support plate (2) and is used for absorbing collision energy transmitted along the vertical direction of the main support plate;
the side wall outer layer protecting sleeve (3) and/or the front wall outer layer protecting plate (4) have elasticity so as to absorb collision energy through elastic deformation;
the front surface of the front wall outer layer protection plate (4) is convexly provided with a bulge part (41) for prolonging the elastic deformation amount of the front wall outer layer protection plate so as to prolong the falling buffering time, and the bulge part (41) is distributed on the edge of the surface of the front wall outer layer protection plate along the circumferential direction of the front wall outer layer protection plate (4) so as to form a concave structure with high periphery and low center on the front surface of the front wall outer layer protection plate (4) and reduce the deformation amount of the central area of the front wall outer layer protection plate (4) during collision;
the front wall outer layer protection plate is arranged on the front surface of the main support plate (2), is abutted against the back surface of the front wall outer layer protection plate (4), and is used for absorbing collision energy transmitted along the vertical direction of the front wall outer layer protection plate;
the two sides of the front surface of the main support plate (2) in the length direction are respectively provided with a plurality of connecting columns (21), and the back surface of the front wall middle layer protection plate (6) is connected with the main support plate (2) through the connecting columns (21);
the front surface of the front wall middle layer protection plate (6) is provided with a plurality of reinforcing rib plates (61) for improving the structural strength.
2. The multiple anti-collision protection structure according to claim 1, further comprising a side wall middle layer protection ring (5) disposed in the side wall outer layer protection sleeve (3) and sleeved on the outer surface of the lens cone support (1) for absorbing collision energy transmitted along the side wall middle layer protection ring.
3. The multiple anti-collision protection structure according to claim 2, wherein the inner wall of the side wall middle layer protection ring (5) is connected with the outer surface of the lens cone support (1) through a plurality of connecting ribs (51) to leave a deformation space for the elastic deformation of the side wall middle layer protection ring (5).
4. The multiple anti-collision protection structure according to claim 3, wherein the outer surface of the lens barrel holder (1) is circumferentially provided with a plurality of inserting slots (11), and the tail end of each connecting rib (51) is a plug board (52) which is vertically inserted with the inserting slots (11).
5. The multiple anti-collision protection structure according to claim 2, wherein the lens barrel support (1) comprises side wall inner layer protection cylinders (7) which are distributed in the circumferential direction, connected with the inner wall of the side wall middle layer protection ring (5) and used for absorbing collision energy transmitted along the side wall inner layer protection cylinders.
6. The multiple collision avoidance structure according to claim 1, further comprising a plurality of cowl inner layer guard posts (8) erected on the front surface of the main frame panel (2) and having distal ends for abutting against the rear surface of the cowl middle layer guard panel (6) and for absorbing collision energy transmitted vertically therealong.
7. The multiple anti-collision protection structure according to claim 6, wherein the side wall of each front wall inner layer protection column (8) is sleeved with a pre-pressed elastic ring (9) which is used for matching with a mounting hole (b) reserved on a PCB (a) mounted on the front surface of the main support plate (2) and used for reducing circumferential impact.
8. The multiple crash protection structure according to claim 7, wherein pre-pressed elastic pads (10) for absorbing collision energy transmitted in a vertical direction of the main bracket panel (2) are padded between the front surface of the main bracket panel (2) and the back surface of the PCB (a) and between the front surface of the PCB (a) and the back surface of the cowl middle guard panel (6).
9. A head-mounted display device comprising a device body and a multiple anti-collision protection structure arranged at the periphery of the device body, wherein the multiple anti-collision protection structure is specifically the multiple anti-collision protection structure according to any one of claims 1 to 8.
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Effective date of registration: 20221118 Address after: No. 500 Songling Road, Laoshan District, Qingdao City, Shandong Province, 266100 Applicant after: GOERTEK TECHNOLOGY Co.,Ltd. Address before: 261031 north of Yuqing street, east of Dongming Road, high tech Zone, Weifang City, Shandong Province (Room 502, Geer electronics office building) Applicant before: GoerTek Optical Technology Co.,Ltd. |
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