CN114679875A - Head-mounted device - Google Patents

Head-mounted device Download PDF

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Publication number
CN114679875A
CN114679875A CN202210161492.7A CN202210161492A CN114679875A CN 114679875 A CN114679875 A CN 114679875A CN 202210161492 A CN202210161492 A CN 202210161492A CN 114679875 A CN114679875 A CN 114679875A
Authority
CN
China
Prior art keywords
circuit board
piston plate
push rod
damper
cylinder body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210161492.7A
Other languages
Chinese (zh)
Inventor
于喆昌
刘晓婷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Goertek Techology Co Ltd
Original Assignee
Goertek Techology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Goertek Techology Co Ltd filed Critical Goertek Techology Co Ltd
Priority to CN202210161492.7A priority Critical patent/CN114679875A/en
Publication of CN114679875A publication Critical patent/CN114679875A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/14Mounting supporting structure in casing or on frame or rack
    • H05K7/1417Mounting supporting structure in casing or on frame or rack having securing means for mounting boards, plates or wiring boards
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02Suppression 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02Suppression 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
    • F16F15/04Suppression 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
    • F16F15/06Suppression 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 metal springs
    • F16F15/067Suppression 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 metal springs using only wound springs
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01Head-up displays
    • G02B27/017Head mounted
    • G02B27/0176Head mounted characterised by mechanical features

Abstract

The application discloses a head-mounted device, which comprises a shell, a circuit board and a damper, wherein the circuit board is positioned on the inner side of the shell; the damper is arranged between the circuit board and the shell; the damper comprises a cylinder body, a push rod and a piston plate; one end of the cylinder body is provided with an opening, the first end of the push rod is connected with the shell, and the second end of the push rod is positioned at the opening; the piston plate is arranged at the second end of the push rod, and the periphery of the piston plate is in zero fit with the inner wall of the cylinder body; the piston plate is capable of reciprocating within the cylinder block, providing vibration isolation for loads transmitted from the housing to the circuit board. This application adopts the attenuator to carry out the vibration isolation to the load that transmits the circuit board from the casing, compares in prior art and adopts rigid body structure to resist the mode of assaulting the load for the load that transmits to on the circuit board descends by a wide margin, can effectively protect the electron device on the circuit board.

Description

Head-mounted device
Technical Field
The present application relates to the field of electronic device technology, and more particularly, to a head-mounted device.
Background
Through years of development of head-mounted equipment, various basic functions are basically completed, and with more inebriant experience requirements, the possibility that the human body accidentally falls off in the game experience is further increased. When the head-mounted equipment falls, large impact force can be generated on the shell, internal devices are easily damaged, and particularly, electronic devices on the circuit board are greatly influenced.
In the prior art, most of head-mounted equipment has no impact-resistant design, or is only limited to increase of the material thickness of a shell of the head-mounted equipment, or design of an anti-collision column in the head-mounted equipment, and the like, so that the impact resistance of a product is improved by a method of increasing local rigidity, but the final effect is limited, and the internal devices of the head-mounted equipment cannot be well protected.
Disclosure of Invention
It is an object of the present application to provide a new solution for a head-mounted device.
According to a first aspect of the present application, there is provided a head-mounted device comprising:
the circuit board is positioned on the inner side of the shell;
a damper disposed between the circuit board and the housing; the damper comprises a cylinder body, a push rod and a piston plate; one end of the cylinder body is provided with an opening, the first end of the push rod is connected with the shell, and the second end of the push rod is positioned at the opening of the cylinder body;
the piston plate is arranged at the second end of the push rod, and the peripheral side of the piston plate is in zero fit with the inner wall of the cylinder body; the piston plate is capable of reciprocating within the cylinder, providing vibration isolation for loads transmitted from the housing to the circuit board.
Optionally, the periphery of the piston plate is provided with a groove, and a first sealing ring is embedded in the groove.
Optionally, the damper further comprises a spring located in the cylinder, one end of the spring is connected with the end of the piston plate, and the other end of the spring is connected with the bottom wall of the cylinder.
Optionally, the bottom of the cylinder body is provided with an air hole, and the air hole is used for balancing air pressure inside and outside the cylinder body.
Optionally, the air hole is in a horn shape, and the diameter of the smallest part of the air hole is 1.5-3 mm.
Optionally, the damper further comprises a cover plate, wherein the cover plate covers the opening of the cylinder body and forms a sealed cavity with the cylinder body; the second end of the push rod penetrates through the cover plate, so that the piston plate is located in the cavity.
Optionally, hydraulic oil is arranged in the cavity, and a plurality of oil passing holes through which the hydraulic oil passes are formed in the piston plate; the cover plate is provided with a through hole for the second end of the push rod to pass through, and the push rod is positioned at the through hole and is in sealing connection with the cover plate.
Optionally, the diameter of the oil passing hole is 0.5-1 mm.
Optionally, a second sealing ring is arranged at the through hole.
Optionally, the electronic device further comprises a bracket, the circuit board is fixed on the bracket, and the bracket is located between the housing and the circuit board;
optionally, at least two dampers are arranged, and at least two dampers are respectively arranged on two sides of the bracket; or, at least two said dampers are disposed between said housing and said support.
One technical effect of this application is:
through setting up the attenuator between casing and circuit board, when head-mounted device falls, the impact load that the casing received transmits to the push rod of connecting the casing on, makes the push rod drive the piston plate of its second end and remove in the cylinder body, and at the removal in-process, the periphery of piston plate takes place the friction with the inner wall of cylinder body, makes impact load can be absorbed and dissipation to reduced the load size of transmission to on the circuit board, realized the vibration isolation effect to the circuit board.
This application adopts the attenuator to carry out the vibration isolation to the load that transmits the circuit board from the casing, compares in prior art and adopts rigid body structure to resist the mode of impact load for the load that transmits on the circuit board descends by a wide margin, can effectively protect the electron device on the circuit board.
Further features of the present application and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which is to be read in connection with the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and together with the description, serve to explain the principles of the application.
Fig. 1 is a partial structural schematic diagram of a head-mounted device provided in the present application.
Fig. 2 is an exploded view of fig. 1.
Fig. 3 is an external structural schematic diagram of a damper provided in the present application.
Fig. 4 is a schematic front view of the internal structure of a damper provided in the present application.
Fig. 5 is a perspective view of fig. 4.
Fig. 6 is a schematic front view of the internal structure of another damper provided in the present application.
Fig. 7 is a perspective view of fig. 6.
In the figure: 1. a housing; 2. a circuit board; 3. a damper; 31. a cylinder body; 311. air holes; 32. a push rod; 321. a connecting plate; 33. a piston plate; 331. a groove; 332. an oil passing hole; 333. a first seal ring; 34. a spring; 35. a cover plate; 351. a through hole; 352. a second seal ring; 36. a cavity; 4. and (4) a bracket.
Detailed Description
Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
According to fig. 1 to 7, the present application provides a head-mounted device including: a housing 1, a circuit board 2, and a damper 3; the circuit board 2 is positioned at the inner side of the shell 1; the damper 3 is disposed between the circuit board 2 and the housing 1; the damper 3 includes a cylinder 31, a push rod 32, and a piston plate 33; one end of the cylinder 31 is provided with an opening, a first end of the push rod 32 is connected with the shell 1, and a second end of the push rod 32 is positioned at the opening; the piston plate 33 is arranged on the second end of the push rod 32, and the periphery of the piston plate 33 is in zero fit with the inner wall of the cylinder 31; the piston plate 33 is capable of reciprocating within the cylinder 31, and performs a vibration damping function on a load transmitted from the housing 1 to the circuit board 2.
Specifically, in the present embodiment, the head-mounted device has a housing 1 and a circuit board 2, and electronic components may be provided on the circuit board 2 to realize various functions. The impact resistance of the circuit board 2 is improved, and electronic devices arranged on the circuit board 2 can be better protected from being damaged. A damper 3 is provided between the housing 1 and the circuit board 2, the damper 3 having a push rod 32 and a piston plate 33 connected to the push rod 32, the piston plate 33 being capable of reciprocating within the cylinder 31. Wherein the damper 3 may be fixed to the housing 1 and the circuit board 2 by glue or a fastener. The direction of the reciprocating motion of the piston plate in this embodiment refers to the vertical direction in the drawing, i.e., the direction from the housing 1 to the circuit board 2, or from the circuit board 2 to the housing 1.
As shown in fig. 1 to 2, when the head-mounted device falls, the impact force applied to the housing 1 is transmitted to the damper 3 through the push rod 32, the push rod 32 pushes the piston to move in the cylinder 31, and the zero-fit between the periphery of the piston plate 33 and the inner wall of the cylinder 31 provides damping for the piston plate 33 during the movement along the cylinder 31, so that the impact load transmitted to the damper 3 is dissipated by the friction force generated between the piston plate 33 and the inner wall of the cylinder 31, thereby reducing the impact load transmitted to the circuit board 2 and providing a vibration isolation effect for the circuit board 2. The zero-fit is a fit without a gap between the periphery of the piston plate 33 and the inner wall of the cylinder 31 to ensure the sealing performance between the two and the relative movement between the two, and the piston plate 33 may be made of an elastic material such as rubber to further improve the sealing performance between the piston plate and the cylinder 31. The type of damper 3 can also be chosen according to the specific requirements of the product.
For example, the mechanical damper 3 may be selected in some low-end products to reduce manufacturing cost, and referring to fig. 3 to 5, and the hydraulic damper 3 may be selected in some medium-end and high-end products to improve reliability of vibration isolation, which is not limited by the present application, referring to fig. 3, 6, and 7. In an embodiment, a connection plate 321 may be further disposed at the first end of the push rod 32, and by bonding the connection plate 321 to the housing 1, the bottom end of the cylinder 31 may be bonded or welded to the circuit board 2, so as to dispose the damper 3 between the circuit board 2 and the housing 1, thereby forming a vibration isolation effect on the circuit board 2.
This application adopts attenuator 3 to carry out the vibration isolation to the load that transmits to circuit board 2 from casing 1, compares in prior art and adopts rigid body structure to resist the mode of impact load for the load that transmits to circuit board 2 descends by a wide margin, can effectively protect the electron device on the circuit board 2. In addition, the damper 3 is arranged between the circuit board 2 and the shell 1 as an integral component, so that the installation and the replacement are convenient, structural changes of the shell 1 and the circuit board 2 are not required in product design, the technical difficulty is low, and the applicability is wide.
Alternatively, referring to fig. 4 to 7, the piston plate 33 is provided with a groove 331 at the periphery thereof, and the groove 331 is internally provided with a first sealing ring 333.
Specifically, in this embodiment, the circumferential edge of the piston plate 33 is provided with a groove 331 for embedding a first sealing ring 333, and the circumferential edge of the piston plate 33 is sealed with the inner wall of the cylinder 31 by the first sealing ring 333. Damping is provided during the movement of the piston plate 33 by the push rod 32 so that the impact load transmitted through the housing 1 to the damper 3 can be quickly dissipated. The first sealing ring 333 can be bonded in the groove 331 through glue, so that the firmness of the first sealing ring 333 is improved, the first sealing ring 333 is prevented from falling off in the moving process of the piston plate 33, and the vibration isolation reliability of the damper 3 is improved.
Alternatively, referring to fig. 4 to 7, the damper 3 further includes a spring 34 located inside the cylinder 31, and one end of the spring 34 is connected to an end of the piston plate 33 and the other end is connected to a bottom wall of the cylinder 31.
Specifically, in the present embodiment, the damper 3 further includes a spring 34, and the spring 34 is disposed inside the cylinder 31 and has one end connected to the piston plate 33 and the other end connected to the bottom wall of the cylinder 31. When the piston plate 33 moves downward through the push rod 32, the spring 34 is compressed, and the impact load transmitted from the housing 1 to the damper 3 can be dissipated not only by the friction between the piston plate 33 and the inner wall of the cylinder 31, but also by converting the impact load into elastic potential energy through the spring 34, so that the vibration isolation effect of the damper 3 is further improved. In addition, after the spring 34 is compressed, the stored elastic potential energy can also enable the piston plate 33 and the push rod 32 to be reset in time, and the push rod 32 and the spring 34 act on two sides of the piston plate 33 to realize the reciprocating motion of the piston plate 33 in the cylinder 31.
Alternatively, as shown in fig. 4 and 5, the bottom of the cylinder 31 is provided with an air hole 311, and the air hole 311 is used for balancing the air pressure inside and outside the cylinder 31.
Specifically, in this embodiment, the bottom of the cylinder 31 is provided with an air hole 311, the piston plate 33 is hermetically connected to the cylinder 31, and a sealed cavity is formed in the cylinder 31, as shown in fig. 4 and 5, when the spring 34 is compressed by the push rod 32, air in the cavity is simultaneously compressed and is compressed out of the cylinder 31 through the air hole 311, so that air pressure inside and outside the cylinder 31 is balanced. In this process, the friction between the air and the air hole 311 dissipates a part of the impact load transmitted from the housing 1 to the damper 3, further reduces the impact load transmitted to the circuit board 2, and improves the vibration isolation effect. The mechanical damper 3 is simple in structure, high in reliability and suitable for most of head-mounted equipment with common specifications.
Optionally, the air hole 311 is in a horn shape, and the diameter of the smallest part is 1.5-3 mm. In this embodiment, the air hole 311 is formed in a trumpet shape, and the diameter of the air hole located outside the cylinder 31 is larger than that of the air hole located inside the cylinder 31, so that the air flow rate is increased, the friction efficiency between the air and the air hole 311 is improved, and the rapid dissipation of the impact load is realized. In addition, if the diameter of the smallest part of the air hole 311 is too small or too large, the energy dissipated is limited. Specifically, in this embodiment, the diameter of the minimum position ranges from 1.5mm to 3mm, that is, the diameter of the minimum position may be 1.5mm, or 1.6mm, 2mm, 2.5mm, or 3mm, and the like, and in this range, the application is not limited strictly.
Optionally, the damper 3 further comprises a cover plate 35, wherein the cover plate 35 covers the opening of the cylinder 31 and forms a sealed cavity 36 with the cylinder 31; the second end of the pushrod 32 passes through the cover plate 35, leaving the piston plate 33 located within the cavity 36.
Specifically, as shown in fig. 3 to 7, in the present embodiment, a cover plate 35 is provided at the opening of the cylinder 31 in a sealing manner, so that the push rod 32 can be accurately returned to the initial position under the restriction of the cover plate 35 after being pushed by the impact load. Also, in an embodiment in which the spring 34 is provided in the cylinder 31, the spring 34 may be set in a slightly compressed state at the initial position of the push rod 32 to improve the sensitivity of the damper 3 when the housing 1 is subjected to a slight impact, and to improve the reliability of the vibration-isolating action of the damper 3 with respect to the circuit board 2. The second end of the pushrod 32 passes through the cover plate 35 to locate the piston plate 33 within the cavity 36 such that reciprocating movement of the piston plate 33 is also limited to movement within the cavity 36 to control the stroke of the piston plate 33.
Alternatively, as shown in fig. 6 to 7, hydraulic oil is provided in the cavity 36, and a plurality of oil passing holes 332 through which the hydraulic oil passes are provided in the piston plate 33; the cover plate 35 is provided with a through hole 351 for the second end of the push rod 32 to pass through, and the push rod 32 is connected with the cover plate 35 at the through hole 351 in a sealing manner.
Specifically, in this embodiment, the damper 3 is of a hydraulic structure, hydraulic oil is disposed in the sealed cavity 36, and the piston plate 33 is provided with a plurality of oil passing holes 332, so that when the piston plate 33 moves toward the bottom wall of the cylinder 31 through the push rod 32, the hydraulic oil is compressed from the cavity 36 below the piston plate 33 to the cavity 36 above the piston plate 33 through the oil passing holes 332, and in this process, most of the energy of the impact load transmitted from the housing 1 to the damper 3 can be dissipated by friction between the hydraulic oil and the oil passing holes 332, so that the impact load further transmitted to the circuit board 2 can be further greatly reduced, and for some middle and high-end products, the impact resistance of the product can be further improved, and internal devices can be reliably protected. In addition, when the push rod 32 is returned, hydraulic oil can also flow from the cavity 36 above the piston plate 33 to the cavity 36 below the piston plate 33 through the oil through hole 332. The hydraulic damper 3 has a multistage damping effect, can obviously improve the dissipation effect of the damper 3 on impact load, and is suitable for some medium-end and high-end products.
In this embodiment, the second end of the push rod 32 passes through the through hole 351 of the cover plate 35, so that the piston plate 33 is located in the sealed cavity 36, and the push rod 32 is hermetically connected with the cover plate 35 at the through hole 351, thereby improving the air tightness of the cavity 36, avoiding the overflow of hydraulic oil, affecting the damping effect, polluting devices inside the housing 1, and the like, and improving the reliability of the product. In addition, the number, shape and size of the oil passing holes 332 in the piston plate 33 may be designed and arranged according to actual product requirements, and the application is not limited thereto. Preferably, the diameter of the oil passing hole 332 is 0.5-1 mm.
Optionally, a second sealing ring 352 is disposed at the through hole 351.
Specifically, in this embodiment, the second end of the piston rod 32 penetrates through the through hole 351 into the cavity 36, the rod body of the rod 32 located at the through hole 351 needs to be in sealing connection with the cover plate 35 to ensure the air tightness of the cavity 36, and in the moving process of the rod 32, the second sealing ring 352 can achieve the dynamic sealing function, and the structure is simple and the cost is low. Preferably, the second sealing ring 352 may be adhered to the through hole 351 of the cover plate 35, or may be integrally formed with the cover plate 35, so as to improve the firmness of the second sealing ring 352 and ensure the sealing performance.
Optionally, as shown in fig. 1 to 2, the head-mounted device further includes a bracket 4, the circuit board 2 is fixed on the bracket 4, and the bracket 4 is located between the housing 1 and the circuit board 2; at least two dampers 3 are arranged, and the at least two dampers 3 are respectively arranged on two sides of the bracket 4; or, at least two dampers 3 are disposed between the housing 1 and the bracket 4.
Specifically, in this embodiment, the inside of the casing 1 is further provided with the support 4, the circuit board 2 can be fixed on the support 4 through a fastening member or the like, and the circuit board 2 is supported, and other devices inside the casing 1 can also be fixed on the support 4 at the same time, when the casing 1 is impacted externally, the impact load is transmitted to the damper 3 and is dissipated by the damper 3, so that the circuit board 2 is protected, other components on the support 4 can be protected, and the overall impact resistance of the head-mounted device is improved. In addition, some head-mounted devices may further include a plurality of dampers 3, for example, two, three, four, etc., to achieve the purpose of isolating vibration at multiple locations.
For example, in one embodiment, as shown in fig. 1 to 2, four dampers 3 are provided, and two dampers are respectively provided between the housing 1 and the bracket 4 and between the bracket 4 and the circuit board 2, so as to form multi-stage damping, achieve a better impact resistance effect, and provide a better protection effect for devices inside the head-mounted device. Wherein, damper 3 between casing 1 and support 4 sets up, and the first end of push rod 32 is connected with casing 1, and the diapire of cylinder 31 is connected with support 4, realizes the fixed of damper 3. And the damper 3 is arranged between the support 4 and the circuit board 2, the first end of the push rod 32 is connected with the support 4, the bottom wall of the cylinder 31 is connected with the circuit board 2, and the damper 3 is fixed.
In this embodiment, the head-mounted device may be a VR device, an AR device, or an MR device, and the application is not limited thereto. In addition, in some electronic devices with the requirement of shock resistance, the damper 3 may also be provided for vibration isolation with reference to the present application, and the above solutions are all within the protection scope of the present application.
In the above embodiments, the differences between the embodiments are described in emphasis, and different optimization features between the embodiments can be combined to form a better embodiment as long as the differences are not contradictory, and further description is omitted here in consideration of brevity of the text.
Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present application. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present application. The scope of the application is defined by the appended claims.

Claims (11)

1. A head-mounted device, comprising:
the circuit board is positioned on the inner side of the shell;
a damper disposed between the circuit board and the housing; the damper comprises a cylinder body, a push rod and a piston plate; one end of the cylinder body is provided with an opening, the first end of the push rod is connected with the shell, and the second end of the push rod is positioned at the opening of the cylinder body;
the piston plate is arranged at the second end of the push rod, and the periphery of the piston plate is in zero fit with the inner wall of the cylinder body; the piston plate is capable of reciprocating within the cylinder, providing vibration isolation for loads transmitted from the housing to the circuit board.
2. The headset of claim 1, wherein the piston plate is provided with a groove around its periphery, the groove having a first sealing ring embedded therein.
3. The headset of claim 1, further comprising a spring within the cylinder, the spring having one end connected to an end of the piston plate and another end connected to a bottom wall of the cylinder.
4. The head-mounted equipment according to any one of claims 1 to 3, wherein the bottom of the cylinder body is provided with an air hole for balancing air pressure inside and outside the cylinder body.
5. The headset of claim 4 wherein the vent is flared and has a minimum diameter of 1.5-3 mm.
6. The head-mounted equipment according to any one of claims 1 to 3, wherein the damper further comprises a cover plate, the cover plate is arranged at the opening of the cylinder body in a covering manner, and forms a sealed cavity with the cylinder body; the second end of the push rod penetrates through the cover plate, so that the piston plate is located in the cavity.
7. The headset of claim 6, wherein the cavity is configured to receive hydraulic fluid therein, and the piston plate is configured with a plurality of oil through holes for passage of the hydraulic fluid therethrough; the cover plate is provided with a through hole for the second end of the push rod to pass through, and the push rod is positioned at the through hole and is in sealing connection with the cover plate.
8. The head-mounted equipment according to claim 7, wherein the diameter of the oil passing hole is 0.5-1 mm.
9. Headgear according to claim 7, wherein a second sealing ring is provided at the through hole.
10. The headset of claim 1, further comprising a bracket to which the circuit board is secured, the bracket being positioned between the housing and the circuit board.
11. The headset of claim 10, wherein at least two dampers are provided, at least two dampers being provided on both sides of the support; or, at least two of the dampers are disposed between the housing and the bracket.
CN202210161492.7A 2022-02-22 2022-02-22 Head-mounted device Pending CN114679875A (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN105156539A (en) * 2015-10-11 2015-12-16 唐哲敏 Air spring with adjustable damping
CN108895107A (en) * 2018-08-31 2018-11-27 华南理工大学 A kind of adjustable dynamic vibration absorber of damping
US20210094592A1 (en) * 2018-09-22 2021-04-01 Central South University Reusable collision energy absorption device for rail vehicle
CN214367443U (en) * 2020-12-23 2021-10-08 歌尔科技有限公司 Vibration damping structure and electronic product with loudspeaker
CN214954336U (en) * 2021-04-23 2021-11-30 歌尔股份有限公司 Head-mounted display device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120080279A1 (en) * 2009-03-19 2012-04-05 Fox Factory, Inc. Methods and apparatus for sag adjustment
CN102071890A (en) * 2010-11-24 2011-05-25 东北石油大学 Dry frictional damping vibration-isolation energy-saving beam hanger
CN102486213A (en) * 2010-12-03 2012-06-06 海洋王照明科技股份有限公司 Vibration isolating device and illuminating device comprising same
CN105156539A (en) * 2015-10-11 2015-12-16 唐哲敏 Air spring with adjustable damping
CN108895107A (en) * 2018-08-31 2018-11-27 华南理工大学 A kind of adjustable dynamic vibration absorber of damping
US20210094592A1 (en) * 2018-09-22 2021-04-01 Central South University Reusable collision energy absorption device for rail vehicle
CN214367443U (en) * 2020-12-23 2021-10-08 歌尔科技有限公司 Vibration damping structure and electronic product with loudspeaker
CN214954336U (en) * 2021-04-23 2021-11-30 歌尔股份有限公司 Head-mounted display device

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