81results about How to "Reduce assembly tolerances" patented technology

The invention discloses a light valve module which is suitable to be assembled on an optical machine base by screws. The light valve module comprises an imaging element, a carrier, a circuit board, a buffer piece and a rigid plate, wherein the whole piece of buffer sheet made of insulating material capable of elastic deformation is overlapped on the rear side of the circuit board; the rigid plate made of rigid material is overlapped on the rear side of the buffer sheet; the circuit board, the buffer sheet and the rigid plate are provided with a plurality of corresponding through holes or through grooves. The screws are orderly arranged through the corresponding through holes and the through grooves of the rigid plate, the buffer sheet and the circuit board to be locked in a fixing part of the optical machine base. With the improved buffer sheet, deflection caused by locking is easy to control and the number of assembly parts and assembly tolerance can be reduced.

The invention discloses an optical module which comprises a housing, a heat sink arranged in the housing, a plurality of lasers arranged on the heat sink, a PCB which is partially arranged on the heatsink, and an optical system arranged in the housing. One end of the optical module is provided with an optical interface, and the other end is provided with an electric interface. The optical systemis arranged between the plurality of lasers and the optical interface. The optical system comprises a wavelength division multiplexer. The PCB is a hard board. The plurality of sets of laser are electrically connected with the PCB. One end of the PCB is fixed to the heat sink, and the other end is constructed to be provided with the electric interface. The optical system guides an optical wave transmitted from the laser to the optical interface. The optical module is a whole hard PCB and supplies better high-speed electric signal transmission performance.

An image capturing module is provided. The image capturing module includes: a lens assembly supporting at least one lens, moving along an optical axis of light indicating an image of a subject, and comprising guiding protrusions for guiding the moving the optical axis; a module supporting unit comprising guiding holes to which the guiding protrusions are inserted to guide the lens assembly; a lens driving unit comprising a winding vibration type piezoelectric motor and a piezoelectric motor supporting member, wherein the winding vibration type piezoelectric motor is disposed on the module supporting unit and moves the lens assembly along the optical axis and the piezoelectric motor supporting member supports the winding vibration type piezoelectric motor; a pressurizing member interposed between the piezoelectric motor supporting member and the module supporting unit; and a plurality of ball assemblies interposed between the module supporting unit and the lens assembly.

The embodiment of the invention provides a coupling inversion structure of a dielectric waveguide filter. At least one hole structure is formed in a resonator and a continuous dielectric widow is formed in the resonator along the periphery of the hole structure, so that the dielectric of the resonator can be exposed to realize coupling between resonators. The length dimension of the dielectric window is set to exceed the half wavelength of the operating frequency of the dielectric waveguide filter so as to realize coupling polarity inversion of the resonator. In addition, the invention also discloses a dielectric waveguide filter. With the dielectric waveguide filter and the coupling inversion structure thereof, coupling polarity inversion between resonators can be realized without welding, the negative coupling is generated, and the assembling tolerance caused by welding is reduced; the production precision is improved; and integrated production of dielectric filters can be realized.

The invention discloses a roundabout broadband efficient multi-channel space power synthesis network, which is divided into upper and lower layers and comprises a lower transfer cavity, an upper coverboard, a lower bottom surface radiator and an upper top surface radiator, wherein the upper cover board covers an upper end cover of the lower transfer cavity; the upper top surface radiator is arranged at the upper side of the upper cover board; the lower bottom surface radiator is arranged at the lower end of the lower transfer cavity; microwave circuits are regularly distributed in the lower transfer cavity; an E-plane waveguide power division network and waveguide E-plane double probes are adopted by the regular lower transfer cavity as power distribution and synthesis units; and meanwhile, the E-plane waveguide power division network is of a multi-stage roundabout structure, so that waveguides at an input end and an output end are arranged on the same horizontal line; a full operating frequency range corresponding to a standard waveguide can be directly covered, and meanwhile, the problems, in synthesis efficiency, productibility and heat dissipation efficiency, of the prior artcan be solved.

Provided are a pitch actuator for a wind turbine generator and a wind turbine generator that can be prevented from losing their reliability. Provided are a cylinder (12) and a rod (13) that rotate a wind turbine rotor blade about an axis thereof relative to a rotor head to change a pitch angle; a cylinder bearing (14, 15) supporting the cylinder (12) so as to be rotatable relative to the rotor head about a first rotation axis (L1) extending substantially parallel to the axis of the wind turbine rotor blade and about a second rotation axis (L2) extending in a direction crossing both the first rotation axis (L1) and the axis of the cylinder (12) and the rod (13); and a rod bearing (16) rotatably supporting an end of the rod (13) on an end surface of the wind turbine rotor blade.

The invention discloses an optical module which comprises the components of a housing, a heat sink arranged in the housing, a laser arranged on the heat sink, a PCB which is partially arranged on theheat sink, and an optical system arranged in the housing. One end of the optical module is provided with an optical interface, and the other end is provided with an electric interface. The optical system is arranged between the laser and the optical interface. The PCB is a hard board. The laser is electrically connected with the PCB. The other end of the PCB is fixed to the heat sink. The other end of the PCB is constructed to an electric interface. The optical system can guide light transmitted from the laser to the optical interface. The optical module is a whole hard PCB and supplies betterhigh-speed electric signal transmission performance.

The invention provides an optical module group assembling device comprising a fixing member used for fixing an optical member to be assembled, a power source assembly used for supplying electric powerto the optical member to be assembled, an aligning mechanism used for placing lenses to be assembled at a designated position for the assembled optical member, a light splitting prism of which a light receiving face is positioned close to an optical device to be assembled, a first image collection device positioned close to a first light emitting face of the light splitting prism, a second imagecollection device positioned close to a second light emitting face of the light splitting prism, and a controller used for controlling the aligning mechanism to adjust positions of lenses to be assembled according to photos taken via the first image collection device and the second image collection device, wherein the first image collection device and the first light emitting face are coaxial, andthe second image collection device and the second light emitting face are coaxial. Via the device provided in the invention, assembling allowance of an optical module group can be lowered, and optical performance of the optical module group can be effectively improved.

The invention discloses a camera module, comprising: a reinforcing plate; at least one circuit board, wherein the circuit board is provided with at least one hollow area and at least one positioning hole attached to the surface of the reinforcing plate; at least one photosensitive chip, wherein the photosensitive chip is attached to the surface of the reinforcing plate through the hollow area on the circuit board; and at least one lens component, wherein the lens component comprises at least one positioning column corresponding to the positioning hole, and the positioning column penetrates through the positioning hole on the circuit board to be attached to the surface of the reinforcing plate so as to assemble the lens component. The invention further discloses an assembly method of the camera module. By adoption of the camera module and the assembly method, the assembly tolerance of the camera module can be reduced to improve the optical performance of the camera module.

The invention provides an assembly method of a loudspeaker, which comprises the following steps: providing a first positioning tool, a second diaphragm and a flexible circuit board, positioning, connecting and fixing the second diaphragm and the flexible circuit board on the first positioning tool; providing a basin frame, a voice coil and a second positioning tool, wherein the basin frame and thevoice coil are installed in the second positioning tool for positioning; the first positioning tool is matched with the second positioning tool, the flexible circuit board is connected and fixed withthe voice coil, and an end of the flexible circuit board away from the voice coil is fixed with the basin frame. Compared with the related art, the offset between the flexible circuit board and the voice coil is optimized in the loudspeaker assembled by the loudspeaker assembling method provided by the invention.

The invention relates to the field of optical devices, in particular to a 2*2 mechanical optical switch. The 2*2 mechanical optical switch comprises two sets of four-fiber collimators, and glass prisms capable of being freely inserted and separated are arranged among the four-fiber collimators. In the separating state, light beams of a first optical fiber, a second optical fiber, a fifth optical fiber and a sixth optical fiber are directly coupled to a seventh optical fiber, an eighth optical fiber, a third optical fiber and a fourth optical fiber respectively. In the inserting state, after the light beams are deviated through the glass prisms, the first optical fiber is coupled to the third optical fiber, and at the same time, the second optical fiber is coupled to the fourth optical fiber. Besides, the fifth optical fiber is connected with the sixth optical fiber, and the eighth optical fiber is connected with the seventh optical fiber. A bypass loop is formed by leading the light to the other side from one side only through one displacement optical element. Therefore, the dimensionality of optical fiber alignment adjustment can be reduced, larger positions and angle allowances are allowed, the packing difficulty can be reduced, and the 2*2 mechanical optical switch is especially suitable for being produced on a large scale.

The invention relates to a prime lens, which comprises a first lens group (11) and a second lens group (12) sequentially arranged from an object side to an image side. In the direction from the objectside to the image side, the first lens group (11) comprises a first lens (111) with negative focal power, a second lens (112) with negative focal power, a third lens (113) with positive focal power and a fourth lens (114) with positive focal power. In the direction from the object side to the image side, the second lens group (12) comprises a fifth lens (121) with negative focal power, a sixth lens (122) with positive focal power, a seventh lens (123) with negative focal power, an eighth lens (124) with positive focal power, and a ninth lens (125) with positive focal power. According to the prime lens, the lenses meet the matching of the focal power, so that the prime lens has the capability of synchronously imaging visible and near infrared spectrums and can have an ultra-long back focalratio.

A lens assembly includes a lens holder and a lens barrel that are coaxial and integrated in a unity, a cavity is defined therein to receive at least one lens, at least three guiding legs are extended from a bottom of the lens holder, and the guiding legs define a plane that is parallel to an installation plane of the lens. It can achieve an accurate optical axis alignment between the lens and the image sensor, reduce total assembly tolerances of the camera module thereby improving imaging quality, and reduce manufacturing cost to benefit the popularization in industries.

The invention discloses a manufacturing method of a touch display module. The manufacturing method includes steps of at least bonding a big edition cover plate and big edition optical glue, and acquiring a big edition bonding piece; cutting the big edition bonding piece, and acquiring a plurality of small bonding pieces; providing a small touch screen display, and bonding the small bonding piece with the small touch display screen; acquiring a touch display module. The manufacturing method of the touch display module can reduce the assembling tolerance between every two fittings of the touch display module and the shaping tolerance of the fittings, and decrease the assembling process, thereby improving the product assembling precision; the yield of a narrow side frame product is greatly improved, the price of the narrow side frame touch display module is reduced, and the market competitiveness of the narrow side frame touch display module is improved.

A lens assembly includes a lens holder and a lens barrel that are coaxial and integrated in a unity, a cavity is defined therein to receive at least one lens, at least three guiding legs are extended from a bottom of the lens holder, and the guiding legs define a plane that is parallel to an installation plane of the lens. It can achieve an accurate optical axis alignment between the lens and the image sensor, reduce total assembly tolerances of the camera module thereby improving imaging quality, and reduce manufacturing cost to benefit the popularization in industries.

An image capturing module is provided. The image capturing module includes: a lens assembly supporting at least one lens, moving along an optical axis of light indicating an image of a subject, and comprising guiding protrusions for guiding the moving the optical axis; a module supporting unit comprising guiding holes to which the guiding protrusions are inserted to guide the lens assembly; a lens driving unit comprising a winding vibration type piezoelectric motor and a piezoelectric motor supporting member, wherein the winding vibration type piezoelectric motor is disposed on the module supporting unit and moves the lens assembly along the optical axis and the piezoelectric motor supporting member supports the winding vibration type piezoelectric motor; a pressurizing member interposed between the piezoelectric motor supporting member and the module supporting unit; and a plurality of ball assemblies interposed between the module supporting unit and the lens assembly.

The invention discloses an air inlet duct assembly for an automobile and an air inlet mechanism, and belongs to the technical field of air inlet systems of motor vehicles. The air inlet duct assemblyfor the automobile comprises an air inlet duct shell; a first air inlet port is formed in the side wall of the air inlet duct shell; an air outlet port is formed in the bottom wall of the air inlet duct shell; an air inlet cavity is formed in the air inlet duct shell; a first separation plate and separation grids are arranged in the air inlet cavity; the first separation plate is bent inwards fromthe bottom of the air inlet port and extends upwards; the top end of the first separation partition plate and the inner wall of the air inlet duct shell form a second air inlet; the separation gridsincline inwards from the top of the air inlet port and are arranged and extend downwards; the separation grids are arranged on the outer side of the second air inlet port; and the bottom ends of the separation grids are not higher than the top end of the first separation partition plate. The air inlet duct assembly for the automobile is high in filtering and impurity removing efficiency, small inair resistance and low in energy consumption; noises is low; and the air inlet duct assembly of the air inlet mechanism and an air filter do not need to be connected through a corrugated pipe, the manufacturing cost is low, and the assembly tolerance is small.

An over-the-range microwave oven that includes a duct unit configured to direct air from the back of the oven to the front and further includes an integrated duct module. The duct unit includes: a first panel at the bottom, a pair of second panels forming both lateral side surfaces of the duct unit. The integrated duct module is disposed on the first panel and integrates a plurality of electrical components, such as a power source unit, a running capacitor, a noise filter and a fuse.

The embodiment of the invention relates to the technical field of electronic products, and discloses a double-camera module group and electronic equipment. According to the embodiment of the invention, the module group comprises a first camera, a second camera, a support, and a camera lens. The support is provided with an accommodation space which at least passes through the top wall of the support. The first camera and the second camera are respectively installed in the accommodation space of the support. The camera lens is fixed on the top wall of the support, and covers the accommodation space. The lenses of the first and second cameras respectively face the camera lens. The embodiment of the invention also provides electronic equipment. According to the embodiment of the invention, a step of correcting the positioning of a module group through a housing is saved, and the module group solves an eccentric problem of the cameras and the camera lens, reduces the assembly tolerance between the cameras and the camera lens, improves the appearance, improves the integration degree, and is convenient to assemble.

Provided are a pitch actuator for a wind turbine generator and a wind turbine generator that can be prevented from losing their reliability. Provided are a cylinder (12) and a rod (13) that rotate a wind turbine rotor blade about an axis thereof relative to a rotor head to change a pitch angle; a cylinder bearing (14, 15) supporting the cylinder (12) so as to be rotatable relative to the rotor head about a first rotation axis (L1) extending substantially parallel to the axis of the wind turbine rotor blade and about a second rotation axis (L2) extending in a direction crossing both the first rotation axis (L1) and the axis of the cylinder (12) and the rod (13); and a rod bearing (16) rotatably supporting an end of the rod (13) on an end surface of the wind turbine rotor blade.

The invention discloses a filter which comprises a filter frame and at least two resonators. Two adjacent resonators are coupled. Each resonator comprises a main body part and a bent part. One end ofthe main body part and the filter frame are integrally formed and grounded, and the bent part is formed by bending the other end of the main body part. Through the specific structure of the resonators, the size of the filter is smaller, meanwhile, the cross coupling mode of the filter is simpler, and the filter is more beneficial to the overall performance of a product.

The invention provides an impulse turbine. The impulse turbine comprises an integrated machine case base which is of a box body structure defined by a bottom plate, a side plate, a cover plate and twopanels arranged front and back and is inclined towards the side plate; a rotating wheel is arranged between the two panels; a first mounting base and a second mounting base are arranged on the coverplate and the side plate correspondingly; the first mounting base and the second mounting base are provided with direct current spray pipes correspondingly; the two direct current spray pipes communicate with an external water conduit through a pipeline; the cover plate is provided with a drainage plate; and the two panels are provided with inspection holes for inspection of the rotating wheel, and end covers matched with the inspection holes. According to the impulse turbine, the structure of the machine case base is optimized, split faces do not need to be arranged, the jet direction precision is high, and the problems that traditional machine case base structures are manufactured in a split mode and are high in machining workloads, and joints are sealed unreliably are effectively solved; and the two panels are provided with the inspection holes for inspection of the rotating wheel, and the end covers matched with the inspection holes, so that the demands of dismounting, mounting andmaintenance of the rotating wheel are met.

The invention discloses a zoom lens which comprises a first fixed lens group, a zoom lens group, a second fixed lens group, a focusing lens group and an optical filter which are sequentially arranged from an object side to an image side along an optical axis. During focusing, the zoom lens group and the focusing lens group respectively move along the optical axis, and the zoom lens further satisfies the following conditions that 1.32 <= FA / FC <= 1.97, -0.9 <= FB / FC <= -0.18, 0 <= FD / FC <= 1.1, wherein FA is the focal length of the first fixed lens group, FB is the focal length of the zoom lens group, FC is the focal length of the second fixed lens group, and FD is the focal length of the focusing lens group. The lens has excellent confocal imaging capability under visible light and infrared light, has a temperature compensation function, does not need to focus again during day and night switching, is clear in imaging, small in size, large in image plane, wide in application range and low in cost, and can be matched with various types of camera equipment to meet various the use requirements.

The invention provides a mobile terminal which comprises the components of a touch control type panel which is provided with an opening; and a terminal housing which is arranged on the lower surface of the touch control type panel. The terminal housing is provided with a trough at a position which corresponds with the opening. A fingerprint identification module penetrates through the opening and is fixed in the trough. According to the mobile terminal, the terminal housing is provided with the trough which is arranged at the position that corresponds with the opening on the touch control type panel; and after the fingerprint identification module is mounted in the opening on the touch control type panel, the fingerprint identification module is fixed in the trough, thereby realizing fixation of the fingerprint identification module. The mobile terminal has advantages of realizing no requirement for individual design of a fixing bracket, reducing cost, reducing assembling tolerance and improving assembly effect. Furthermore the mobile terminal settles the problems of high cost, assembling error stacking and difficult appearance control caused by a fixed bracket in an existing fingerprint identification module assembling structure.

The invention provides a heat sink without a circuit board. The heat sink comprises a fan frame base; a motor which comprises a stator set sheathed on the base and a rotor set coupled on the base; a monoblock control element which is an integrated circuit, and directly drives and controls operation of the heat sink and induces magnetic pole phase change of the motor without a circuit board; and a fixing seat which is fixedly connected to the base and provided with a slot for accommodating the control element. The monoblock control element drives and controls operation of the heat sink and induce the magnetic pole phase change of the motor, thus the heat sink saves a traditional printed circuit board, which reduces number of parts, lowers manufacturing cost and time, and avoid complex circuit design.

The invention discloses a trademark compaction device, which comprises a frame; a compaction mechanism, wherein the compaction mechanism is arranged on the frame for compacting the trademark on a workpiece, the compaction mechanism comprises a telescoping driving unit and a compaction upper die connected to a driving shaft of the telescoping driving unit; a positioning mechanism arranged on the frame for positioning the relative position of the workpiece and the compaction upper die; and a fixing mechanism arranged on the frame for fixing the workpiece. The trademark compaction device breaks the thinking that a traditional compaction tool must have the upper die and a lower die, the compaction mechanism, the positioning mechanism and the fixing mechanism are arranged on one frame, so that lower die can be omitted, positioning precision is increased, carrying is convenient, workpiece is not required for being removed from whole machine due to lack of trademark compaction, and the production efficiency is increased.

The invention relates to a long seal pasting device and a processing box assembling production line. The long seal pasting device comprises a pedestal, and a manipulator arranged on the pedestal and moving between the taking position and the pasting position of a long seal. The manipulator comprises a pressure plate for pressing the long seal and a pair of clamping plates positioned at two sides of the pressure plate and executing opening and closing motion relative to the pressure plate, and the pressure plate is flush with the bottom surface of the clamping plates. The processing box assembling production line has a plurality of stations, one of the stations is a long seal pasting device station, and the device can improve the assembling qualified rate.

The invention provides a cylinder block and a compressor. The cylinder block comprises a cylinder block body (1) and a stator core (2), and the stator core (2) is integrally formed with the cylinder block body (1). The cylinder block solves the problem that the assembly precision of the cylinder block and a motor stator is low and the design of motor stator and rotor gap values is restricted, thereby limiting the improvement of the energy efficiency of the compressor.