174results about "Physics instruments" patented technology

According to various embodiments, an electronic device includes a first housing; a second housing; at least one hinge device configured to foldably couple the first housing and the second housing with respect to a folding axis, wherein the at least one hinge device includes a rotation bracket link; a first rotation bracket rotatably coupled to the rotation bracket link and connected to the first housing; a second rotation bracket rotatably coupled to the rotation bracket link and connected to the second housing; at least one hinge device including a first arm coupled to the first rotation bracket and a second arm coupled to the second rotation bracket; a flexible display disposed to receive support from the first housing, the second housing, and the hinge device; and a first plate and second plate disposed under the flexible display, wherein the first arm and the second arm have the second plate and a support area for supporting the second plate when the electronic device is in an unfolded state.

A hinge device includes a shaft that is pivotally supported by a bearing portion and is rotatable, a first torque application unit configured to apply a frictional force to a peripheral surface of the shaft by fitting the shaft to the first torque application unit, and a second torque application unit configured to apply a frictional force to the shaft in an axial direction. The second torque application unit includes a flange that is formed on the shaft and abuts onto one end of the bearing portion, and a nut that is screwed to a male screw portion of the shaft and is tightened to the other end of the bearing portion via washers and a disc.

A spherical joint couples an accessory to a support. The spherical joint enables the accessory to be leveled about one or more axes and panned about an axis, such that the accessory may be leveled and panned with respect to a viewing sphere. The spherical joint comprises a collar, a cup, and a ball head, wherein the collar is configured to house the ball head and the ball head is configured to couple to one of an accessory or a support via a mount interface. The ball head further comprises a ball configured to enable rotation of the ball head relative to the collar with respect to one or more axes. The cup is configured to resist rotation of the ball head relative to the collar, such that the spherical joint may be fixed at a suitable orientation.

A resin composition for a sliding material that can provide a sliding member having excellent sliding properties and the like under dry conditions even in a case where a soft metal such as an aluminum alloy is used as a mating material, and the like are provided. Disclosed are a resin composition for a sliding material in which 10 to 400 parts by weight of uncarbonized carbon fiber having a 5% weight loss temperature having a value within the range of 400 to 550° C. as measured by thermogravimetry, as a blending component (b), and 10 to 80 parts by weight of a lubricating additive as a blending component (c) are blended with 100 parts by weight of a resin component as a blending component (a), and the like.

The invention discloses a high-low temperature high-frequency angular vibration device based on a hydrostatic shaft system, which comprises a high-frequency angular vibration table, a high-low temperature box and a control system, and is characterized in that the high-frequency angular vibration table comprises a base, a hydrostatic bearing, a torque motor, an adapter, an encoder, a conductive slip ring, a thermal insulation shaft and a workbench; the base is located at the bottom, the torque motor stator is fixedly connected with the base and located in the base, the torque motor rotor is connected with the internal motor shaft, the hydrostatic bearing is located on the outer circumference of the base, and the top of the motor shaft is fixedly connected with the hydrostatic bearing through the adapter. An encoder is arranged at the bottom shaft end of the motor shaft; the conductive slip ring is mounted on the encoder; the top of the adapter is connected with a workbench located in the high-low temperature box through a thermal insulation shaft. The control system controls the temperature of the high-low temperature box and the angular frequency, the angular rate and the angular position of the high-frequency angular vibration table. According to the invention, high-frequency angular vibration can be realized in high and low temperature environments.

A spherical joint couples an accessory to a support. The spherical joint enables the accessory to be leveled about one or more axes and panned about an axis, such that the accessory may be leveled and panned with respect to a viewing sphere. The spherical joint comprises a collar, a cup, and a ball head, wherein the collar is configured to house the ball head and the ball head is configured to couple to one of an accessory or a support via a mount interface. The ball head further comprises a ball configured to enable rotation of the ball head relative to the collar with respect to one or more axes. The cup is configured to resist rotation of the ball head relative to the collar, such that the spherical joint may be fixed at a suitable orientation.

A camera module according to an embodiment disclosed herein may include a lens assembly, an AF carrier in which at least a portion of the lens assembly is located, a camera housing configured to receive the AF carrier, an AF actuator configured to drive the AF carrier to move in an optical axis direction with respect to the camera housing and having a portion disposed on the AF carrier and the camera housing, a first guide groove extending on a surface of the camera housing in the optical axis direction, a second guide groove extending on a surface of the AF carrier in the optical axis direction and facing the first guide groove, at least one first AF ball disposed between the first guide groove and the second guide groove, and a recess disposed on one of the camera housing and the AF carrier and facing the at least one first AF ball. Various other embodiments are possible.

A display hinge system includes a latching hinge and a friction hinge. The latching hinge includes a latching hinge moulding with first and second toothed locking plates, and a latch lever mechanism configured to move the first toothed locking plate toward and away from the second toothed locking plate. In one configuration, the first toothed locking plate does not engage the second toothed locking plate and the display hinge system is free to rotate. In another configuration, the first toothed locking plate engages the second toothed locking plate and prevents rotation of the display hinge system. The friction hinge includes a friction hinge moulding, a friction hinge cap, and a torque hinge. The torque hinge has a first part mechanically coupled to the friction hinge moulding and a second part mechanically coupled to the friction hinge cap. The friction hinge is configured to resist rotation of the display hinge system.

ObjectTo provide a fluid dynamic pressure bearing oil and a fluid dynamic pressure bearing filled with the fluid dynamic pressure bearing oil, and to provide a spindle motor and a disk drive device including the spindle motor in which the fluid dynamic pressure bearing oil and the bearing are used, thereby suppressing adhesion of a volatile component to a magnetic disk or the like even when the fluid dynamic pressure bearing oil is volatilized, so that occurrence of HDD read / write errors can be suppressed.SolutionA fluid dynamic pressure bearing oil contains at least one compound selected from the group consisting of a monoester compound represented by the following Formula (1) and a diester compound represented by the following Formula (2): R1—C(═O)O—R2 (1) (where R1 is an alkyl group having 10 or more carbon atoms in total, R2 is an alkyl group having 9 or more carbon atoms in total, and R3-E1-R4-E2-R5 (2) (where R3 and R5 are each independently an alkyl group having 8 or more carbon atoms in total, R4 is an alkylene group having 4 or more carbon atoms in total, and E1 and E2 are each independently —C(═O)O— or —OC(═O)—.

Embodiments of this application provide a foldable electronic device, including: a shaft cap, a body, a first cam component, and a second cam component. The first cam component and the second cam component come into pressure contact. The first cam component is configured to be rotatable around a central shaft of the first cam component. The second cam component is configured to be slidable along a direction of the central shaft. A contact surface of the first cam component and the second cam component includes a locking section, an angle between a normal direction of the locking section and the central shaft is less than or equal to a preset value, and a resultant force of a cam driving member in a rotation direction of the cam driving member is o, so that the body is not automatically unfolded or folded, thereby implementing the freestop characteristic.

A slide rail assembly adapted to dispose to a first casing is provided. The slide rail assembly includes an outer slide rail, an inner slide rail, and first and second engaging components. The outer slide rail includes a first hook. The inner slide rail is slidably disposed to the outer slide rail and includes first and second ends and positioning slots. First fixing portions of the first casing is engaged with several of the positioning slots. The first engaging component is partially overlapped with a critical positioning slot of the positioning slots and includes a second hook. The second engaging component includes a third hook. When the first casing is set on the inner slide rail, the second hook leaves an engaging path with the first hook, and the first casing and the inner slide rail slide to a position where the third hook is engaged with the first hook.

The two-dimensional rotary table bearing comprises a first outer ring and an inner ring, a rotating position is arranged on the inner wall of the first outer ring in the circumferential direction, an axial rotating assembly and a radial rotating assembly are arranged in the rotating position, and the axial rotating assembly comprises a first ball combination and a second ball combination; the inner ring is rotationally borne in a rotating position between the first ball combination and the second ball combination, the radial rotating assembly comprises a plurality of columnar rollers, the columnar rollers are in rolling fit with the first outer ring, and when the inner ring is located in the rotating position, the outer wall, in the circumferential direction, of the inner ring abuts against the columnar rollers; the astronomical telescope has the effect of improving the rotation flexibility and the working speed of the astronomical telescope during working.

A linear guide device comprises a rail (2) having a first feed device (8) extending along a longitudinal direction (L), a carriage (3) being provided to be movable relative to the rail (2) along the longitudinal direction (L) and having a second feed device (9) extending along the longitudinal direction (L), a cage (4) being provided to be movable relative to the rail (2) and the carriage (3) along the longitudinal direction (L), and a coupling element (6) designed to engage simultaneously with the first and the second feed devices in order to cause movement of the cage (4) relative to the rail (2) and / or the carriage (3) when the carriage (3) is fed along the longitudinal direction (L), characterized in this respect.The coupling element (6) has at least one projection (43, 44) which interacts with a stop surface (13a, 14, 35a, 36) formed on the rail and / or the slide to hold the coupling element (6) in the linear guide device (1).

The invention discloses a hinge mechanism and electronic equipment, and belongs to the technical field of communication. The hinge mechanism comprises a hinge base, a swing arm, a damping assembly and a linkage assembly, the swing arm is rotationally connected with the hinge base through a rotating shaft, the damping assembly comprises a moving part and an elastic damping part, the moving part is matched with the swing arm, and when the swing arm rotates relative to the hinge base, the swing arm drives the moving part to move in the axial direction of the rotating shaft; the linkage assembly comprises a transmission part and a screen supporting part, the transmission part is connected with the moving part, and the transmission part is in transmission connection with the screen supporting part; in the unfolding process of the hinge mechanism, the moving piece drives the transmission piece to move in the first direction, and the transmission piece drives the screen supporting piece to move in the direction away from the hinge base. In the folding process of the hinge mechanism, the moving part drives the transmission part to move in the second direction, the transmission part drives the screen supporting part to move in the direction close to the hinge base, and the first direction and the second direction are opposite and are both parallel to the axial direction of the rotating shaft.

A tire test device of an embodiment of the present invention is provided with a road surface, a carrier that rotatably holds a test tire on which a test tire is mounted and that is capable of traveling along the road surface in a state in which the test tire is in contact with the road surface, and a guide mechanism that guides the carrier to travel in a traveling direction. The guide mechanism is provided with a rail that extends in the traveling direction of the carrier, and a trolley that is fixed to the carrier and is capable of traveling on the rail. The trolley is provided with a roller that is capable of rolling on the rail, and a bearing that rotatably supports the roller. The bearing is a rolling bearing that is provided with a rolling element that rolls on a circular track.

The invention discloses electronic equipment and a connecting device. The electronic equipment comprises a first body, a second body and the connecting device for connecting the first body and the second body. The first body is provided with a first display screen, the second body is provided with a second display screen, and the second display screen is different from the first display screen. The connecting device comprises a first shaft and a second shaft, the first body and the second body can relatively rotate based on the connecting device, the electronic equipment comprises a target state, in the target state, the first body is at a target angle relative to the second body, and at least part of projection of the first shaft towards the second shaft is located on the first body or the second body.

The invention provides a synchronizing mechanism, a hinge device, a folding device and foldable electronic equipment, the synchronizing mechanism comprises a fixed seat, a sliding seat, a first swing arm and a second swing arm arranged on two sides of the fixed seat, and a synchronizing part arranged between the first swing arm and the second swing arm, when one swing arm rotates, the synchronizing part slides along a first direction, and when the other swing arm rotates, the synchronizing part slides along a second direction; and the other swing arm is driven to rotate. Each swing arm comprises two sub swing arms which are arranged in the first direction and have a gap, and the synchronous part is pressed between the two sub swing arms of each swing arm in the first direction. First sliding structures are arranged between the two sub-swing arms and the sliding seat and between the two sub-swing arms and the fixed seat, and a second sliding structure is arranged between at least one sub-swing arm and the synchronous piece or the fixed seat to limit the sub-swing arm where the second sliding structure is located to move relative to the fixed seat in the third direction. According to the synchronous transmission device, the problem that the synchronous part is prone to inclining and warping can be effectively solved, high-precision synchronous transmission is achieved, a good synchronous effect is achieved, and flatness is guaranteed.

To suppress deformation of a ball bearing caused when press-fitting and fixing a bearing holder.SOLUTION: A holding structure of a ball bearing 2 supporting a shaft freely rotatably comprises: a bearing holder 4 including a cylindrical holder part 40 inside which the ball bearing 2 is fitted from one side in an axial direction of the shaft and a positioning part 45 which is arranged on the other side in an axial direction of the holder part 40 and abuts, from the other side, against the ball bearing 2; and a mounting plate 3 including a cylindrical mounting part 31 into which a part 41 of the holder part 40 is press-fitted from the other side. An inner surface of the holder part 40 is arranged with: an adhesive surface 42 to be caused to adhere to an outer peripheral surface 2f of the ball bearing 2 with an adhesive; a relief surface 43 having an inner diameter D3 larger than an inner diameter D2 of the adhesive surface 42 on the one side of the adhesive surface 42; and a step surface 44 for connecting the adhesive surface 42 and the relief surface 43. A position of the step surface 44 in the axial direction is overlapped with a position of the ball bearing 2 in a state that the ball bearing 2 is fitted into the bearing holder 4.SELECTED DRAWING: Figure 2

To enhance bearing rigidity against moment load to suppress centrifugal whirling of a shaft, without enlarging an axial dimension of a dynamic pressure bearing.SOLUTION: A dynamic pressure bearing (bearing sleeve 8) comprises a first dynamic pressure generation unit 11 and a second dynamic pressure generation unit 12 provided on an inner peripheral surface 8a so as to be spaced apart from each other in an axial direction. The respective dynamic pressure generation units 11, 12 respectively have a plurality of dynamic pressure grooves 11a, 11b, and 12a, 12b arranged in a herringbone shape and having different inclination directions. The first dynamic pressure generation unit 11 has an annular hill part 11c between the axial directions of the plurality of dynamic pressure grooves 11a, 11b having different inclination directions. The plurality of dynamic pressure grooves 12a, 12b having different inclination directions of the second dynamic pressure generation unit 12 are continuous in the axial direction.SELECTED DRAWING: Figure 3

The embodiment of the present application provides a pivot support structure and a display device, and belongs to the technical field of display, the pivot support structure is used for bearing a flexible display panel, the flexible display panel comprises a flat area and at least one bending area, comprises a first support plate, the orthographic projection of the first support plate on the flexible display panel is located in the bending area, wherein the first support plate comprises a plurality of chain plates, any two adjacent chain plates in the plurality of chain plates are rotationally connected, one side of the first support plate towards the flexible display panel is provided with an adhesive layer, and the first support plate is connected with the bending area of the flexible display panel through the adhesive layer. Through the pivot support structure and the display device provided by the embodiment of the present application, the warping deformation of the bending area of the flexible display panel can be limited, and the creases generated by the flexible display panel are reduced.

A device for electrochemically machining a metallic workpiece (30), comprising: a clamping device (10), an electrode (14) fixedly arranged in the clamping device (10) for electrochemically machining the workpiece (30), a workpiece holder (16) arranged on the clamping device for receiving and positioning the workpiece (30) relative to the electrode (14), means (20, 22, 28, 62) for supplying an electrolyte (38) into a working gap (34) between the electrode (14) and the workpiece (30), and means for applying an electrical voltage between the electrode (14) and the workpiece (30); characterized by means (20, 22, 38) for automatically centering the workpiece (30) in the workpiece holder (16), wherein the workpiece (30) is held freely movable in the workpiece holder (16) by means of a hydrostatic compensating device and is automatically centered relative to the electrode (14).

A hinge device includes a first shaft that is fixed to a display chassis, a second shaft that is fixed to a main body chassis, connecting plates to which the first shaft and the second shaft are rotatably fitted, a synchronization unit configured to synchronously rotate the first shaft and the second shaft in opposite directions with respect to the connecting plates, a first torque application unit configured to apply a frictional force to a peripheral surface of the first shaft by fitting the first shaft to the first torque application unit, and a second torque application unit configured to apply a frictional force to the second shaft in an axial direction.

A tilt and continuous rotation stage including: a central shaft (101) defining a main axis (111) of rotation for the stage; a bearing hub (102) rotatable about the central shaft; a top plate (104); a pair of ball bearings (103), mounted to the bearing hub, defining a tilt axis (112) for the top plate (104); a preload element (113) configured to cause the top plate to press against the pair of ball bearings; a pair of ball transfer units (106) mounted on the bottom surface of the top plate (104); a rotatable wedge ring (105) mounted concentrically to the bearing hub (102), the wedge ring (105) having a top surface inclined at an angle relative to the top plate and providing a running surface for the pair of ball transfer units (106); a first actuator configured to rotate the bearing hub about the main axis; and a second actuator configured to rotate the wedge ring about the main axis (111).

The present application provides a rotating mechanism and a foldable electronic device. The rotating mechanism includes a supporting base, a swing assembly, and a synchronization assembly. The swing assembly includes a first swing plate and a second swing plate. The first swing plate is provided with a first guide groove. The second swing plate is provided with a second guide groove, and at least portions of the first guide groove and the second guide groove are inclined. The synchronization assembly includes a first synchronization member and a second synchronization member. The first synchronization member includes a fixedly connected first sliding rod, a first swing arm, and a first synchronization gear. The first sliding rod slides and rotates in the first guide groove to drive the first swing arm to rotate. The second synchronization member includes a fixedly connected second sliding rod, a second swing arm, and a second synchronization gear. The second synchronization gear engages with the first synchronization gear. The second sliding rod slides and rotates in the second guide groove to drive the second swing arm to rotate. Direct engagement simplifies the structure of the rotating mechanism, reduces the weight of the rotating mechanism, reduces the difficulty of design and assembly, and facilitates the lightweight design of the electronic device.

Provided is a hinge device capable of generating sufficient torque while having a small diameter and suppressing vibration between chassis. The hinge device includes a shaft that is pivotally supported by a bearing portion and is rotatable, a first torque application unit configured to apply a frictional force to a peripheral surface of the shaft by fitting the shaft to the first torque application unit, and a second torque application unit configured to apply a frictional force to the shaft in an axial direction. The second torque application unit includes a flange that is formed on the shaft and abuts onto one end of the bearing portion, and a nut that is screwed to a male screw portion of the shaft and is tightened to the other end of the bearing portion via washers and a disc.

The invention provides a rotating shaft mechanism and electronic equipment. Comprising a middle beam, a synchronous gear, a first swing arm and a second swing arm, the synchromesh gear comprises a first gear and a second gear which are meshed with each other and installed on the middle beam, and the first gear and the second gear are connected with the first swing arm and the second swing arm respectively. The first gear comprises a first tooth, and the first tooth comprises a first end and a second end which are oppositely arranged in the tooth width direction of the first tooth; the second gear comprises a second tooth, the second tooth comprises a third end and a fourth end which are oppositely arranged in the tooth width direction of the second tooth, the third end and the first end are located on one side of the synchromesh gear, and the fourth end and the second end are located on the other side of the synchromesh gear; the tooth crest thickness of the first tooth is gradually changed from the first end to the second end, the tooth crest thickness of the second tooth is gradually changed from the third end to the fourth end, and the change trend of the tooth crest thickness of the second tooth is opposite to the change trend of the tooth crest thickness of the first tooth. According to the technical scheme, the synchronization structure is good in synchronization effect, and synchronous rotation of the structures on the two sides of the rotating shaft is easily achieved.

The present application relates to the field of electronic device fittings, and aims to solve the problem of it not being possible for known hinges to have a simple structure and also better meet rotational damping requirements. Provided are a hinge assembly, a support apparatus, an electronic device assembly and a foldable device. The hinge assembly comprises a rotary shaft, a first leaf and a second leaf. The first leaf comprises a first leaf plate and first sleeves. The second leaf comprises a second leaf plate and a second sleeve, wherein slits in the second leaf plate divide the second sleeve into a main sleeve and side sleeves. The first sleeves are provided with engagement recesses in a protruding manner, and the side sleeves are provided with engagement protrusions. In a first state, the engagement protrusions engage into the engagement recesses; and in a second state, the engagement protrusions and the engagement recesses are staggered in the circumferential direction, and the engagement protrusions of the side sleeves elastically abut against the first sleeves. The beneficial effect of the present application lies in: being capable of providing a better damping effect and a flattened state maintaining capacity.