36results about How to "Reduced dimensional tolerance requirements" patented technology

An object of the present invention is to reduce a lateral width of an FPC also with evenly aligned and arranged plurality of ICs. The liquid crystal display device according to the present invention includes a glass substrate, a plurality of ICs of COG (Chip On Glass) configuration aligned on a glass substrate along a side thereof, and an FPC (Flexible Printed Circuit) that is arranged to extend along the side of the glass substrate and that is connected to the plurality of ICs. Specified ICs from among the plurality of ICs are arranged in that extending directions of their longer sides are inclined with respect to an extending direction of the side of the glass substrate such that the longer sides face towards a central side of the FPC.

The light guide plate includes two layers having different particle concentrations, in which the thicknesses of the two layers are varied to change the combined particle concentration of the light guide plate, and conditional expressions of 0.3 mm≦Tlg≦4 mm and 0.3≦tcen / Tlg≦1 are satisfied when the thickness in the direction perpendicular to the light exit surface is defined as Tlg and the thickness at the center of the second layer is defined as Tcen. The light guide plate of the present invention can have a large and thin shape, can emit light having high light use efficiency and small luminance unevenness, can obtain a middle-high or bell-shaped brightness distribution and can be easily manufactured.

A glow plug in which a ceramic heater is fixedly disposed in a metallic, cylindrical member such that a front end thereof projects from a front end of the cylindrical member, and the resultant cylindrical member is fixedly disposed in a plug body such that the front end of the cylindrical member projects from a front end of the body, and which readily provides a mounting structure such that, even when loosening arises at a joint between the body and the cylindrical member after the glow plug is mounted onto a cylinder head, the cylindrical member is prevented from dropping into the interior of an engine. A portion 23 of a cylindrical member 3 projecting from a front end 4 of a plug body 4 has outside diameter D2, which is defined as a smaller diameter than a portion of the metallic, cylindrical member which is fixedly disposed within the metallic, cylindrical plug body (a large-diameter portion 33 of the cylindrical member 3). A front-end-oriented end face 3t is formed in a diameter transition region where the outside diameter changes between the two diameters. In a mounting bore formed in a cylinder head, bore diameter D3 of a dead end portion, against which the front end 4a of the body 4 is pressed, is rendered smaller than outside diameter D1 of a large-diameter portion 33 of the cylindrical member 3. Since the dead end portion prevents movement of the cylindrical member 3, even when the cylindrical member 3 comes off the body 4, the member 3 does not drop into the interior of an engine.

An electric fan is provided, including a labyrinth structure with increased performance of preventing entry of a liquid into a receiving space to receive a stator and a rotor. A clearance is defined between an opposed wall portion of a base and an opposed wall portion of an impeller body, which are opposed to each other in an axial direction of a rotary shaft, to form a labyrinth structure. The opposed wall portion of the base and the opposed wall portions of the impeller body are shaped to form a volume expanding portion within the clearance. The volume expanding portion is constituted from a groove portion for expanding the clearance, having a volume larger than other portions within the clearance.

The invention relates the hot melt adhesion technology, comprising the following steps: a heat composite; b cutting; c stitching; d up-stripping and checking; e heat pressing; f checking. The technology can separately control temperature, press and time, has no solvent and environmental pollution; its binding power is ten times than that of pressure-sensitive adhesive; the technology can accurately control the quantity, position and shape of adhesive material; the technology has fast curing speed, short adhesion time; the product made with the technology has advantages of high strength and good property.

A process for connecting two aircraft fuselage segments and a reinforcing profile arranged in the joint region of the two aircraft fuselage segments by friction twist welding using a rotating tool, wherein a cover plate is brought onto the aircraft fuselage segments to be connected above the joint regions and after the friction twist welding the remainder of the cover plate is milled off. This makes it possible to overcome significantly greater gap tolerances in the edges to be connected so that the dimension tolerance requirements for the aircraft fuselage segments can be reduced. Furthermore, a smooth surface can be achieved in the welding region.

A pipe joint structure is used to prevent a tube and pipe joint, especially fluororesin pipe joint from slipping off. The pipe joint comprises a joint body, a fixed ring and a union nut. A jig is used to expand the tube end to become a flared end consisting of a conical surface and a tubular surface, and finally connect it to the conical surface and tubular surface on top of the tube connecting portion of the joint body. When the union nut is fastened to the locking thread of the tube connecting portion, its interior recess portion will couple with the bulging surface of fixed ring to ensure it to stay in a concentric position, thereby allowing the tube wall of sealed surface to be compressed evenly and secured firmly on said pipe joint so to achieve a seal and prevent it from slipping off.

The invention discloses a spring clip, which comprises a first main body comprising a holding part and a clamping part, a second main body comprising a holding part and a clamping part, and a first pivot element and a locking mechanism, wherein the first main body is pivotably connected with the second main body through the first pivot element and the locking mechanism, the locking mechanism is composed of a pair of friction pair components; in the friction pair components, the first friction pair component comprising a first friction pair element is arranged on the first main body, the second friction pair component comprising a second friction pair element is arranged on the second main body; the first friction pair element and the second friction pair element in pairs arranged in the friction pair components mutually rub each other and play a locking role; and the friction pair elements mainly rub in a plane perpendicular to an axis of the first pivot element. The friction pair components are in pairs arranged in the plane perpendicular to the axis of the first pivot element for contact and friction. Because the plane is wider, the abrasion quantity between the friction pair components is little, and requirements of materials made into the friction pair components are lower, the spring clip can be used reliably for a long time.

The invention is directed to a mirror adjustment mechanism with an electrical connection having at least one pair of contact parts disposed movably relative to each other. The contact parts jointly form a sliding contact for maintaining electrical contact during pivotal motion of a mirror connector relative to a base frame, while one of the contact parts of the sliding contact is fixedly connected with the mirror connector.

The invention relates to an anti-drop structure for a regulating valve bushing, which comprises a valve body, a valve seat, a valve cover, a valve rod, a valve core and a bushing, wherein the valve seat is fixed in the valve body, the valve cover is fixed on the valve body, the valve rod is spliced in the valve cover in a sliding and sealing manner, the valve core is fixed at the bottom end part of the valve rod, an end face of the bushing pushes against limiting steps, a limiting outer conical surface is arranged at the outer side edge of the other end part of the bushing, and the other end part of the bushing is contacted with a limiting inner conical surface of an extruding flange. With the adoption of the structure, tools such as a drilling bit and a screw tap are not required during the assembly course, as the drilling bit and the screw tap are easy to break when in use to cause work injuries, dangerous processing procedures are reduced, the requirement for the dimensional tolerances of the bushing and a matching surface of the bushing is lowered, the assembly is faster and more reliable, the assembly efficiency is improved, the number of the location steps is increased, the drop of the bushing is effectively prevented, the reliability of a product is improved, the service life of the product is prolonged, and the significant economic benefit is achieved.

The present invention provides a semiconductor-type light source 2, a lens 35, a heat sink member 4, a light control member 6, a driving member 7, and a cover member 8. The cover member 8 is fixed to a fixing surface of the heat sink member 4 such a manner as to be integrated with the semiconductor-type light source 2. The light control member 6 is mounted to the cover member 8 in such a manner as to be changeably movable between a first location and a second location. As a result, the present invention is capable of reducing dispersion in relative position between the semiconductor-type light source 2 and the light control member 6, and reducing dispersion between a light distribution pattern for low beam LP and a light distribution pattern for high beam HP.

The embodiment of the invention discloses a lens assembly, a camera module, a terminal and an assembling method of the lens assembly, wherein the first lens comprises a first lens barrel and a first lens group, the image side surface of the first lens group is a first surface, and the first surface is provided with a first connecting part; the second lens is located at the image side of the firstlens, the second lens comprises a second lens barrel and a second lens group, the object side surface of the second lens group is a second surface, the second surface is provided with a second connecting part, and the second connecting part is adjustably connected with the first connecting part; the image side surface of the first lens barrel is a third surface, the object side surface of the second lens barrel is a fourth surface, the second lens has a second optical axis, and the orthographic projection of the third surface on the reference surface where the second optical axis is located isa first projection; the orthographic projection of the fourth surface on the reference surface is a second projection, and the first projection and the second projection do not coincide. According tothe embodiment of the invention, the resolution effect of the lens assembly can be improved, and the adjustable range is large enough.

The invention, which belongs to the field of manufacturing en electronic vacuum pump for en electric vehicle, relates to a clearance adjusting mechanism for a stator and a rotor of an electric vacuum pump. A motor base, a motor bracket, a rotary cylinder and a clearance adjusting head limiting base are fixedly connected to a base. The bottom of a motor main body is arranged on the motor base; an upper flange is arranged on the motor bracket; and the bottom of a mould is arranged on the motor bracket. A rotor is connected with a motor output shaft; a stator is arranged between the mould and the rotor; and an adjusting clearance is formed between the mould and the stator. A spring self-adjusting rod device is installed at one side of the mould and an error removing lever and a clearance adjusting lever are installed at the other side of the mould. The top of the rotary cylinder is in rotating connection with a clearance adjusting head having a tapered head part. The clearance adjusting mechanism has the following advantages: the structure is novel; the taper of the clearance adjusting head is used for measurement, so that the assembling processes of the stator and the rotor are simplified substantially; the operation is simple and convenient; the clearance can be adjusted; the consistency is high; the product quality is guaranteed; and the production take time is increased.

The present invention provides a mobile terminal. The mobile terminal comprises a body and a flash lamp module set; the flash lamp module set comprises a light source and a flash lamp cover movably arranged on the body; a mounting hole is formed in the body; the light source is arranged in the mounting hole; and the flash lamp cover covers the light source. According to the mobile terminal of the invention, the location of the flash lamp cover can be adjusted, the dimensional tolerance requirements of a mobile terminal shell and the flash lamp cover can be greatly decreased, the processing difficulty of the mobile terminal shell and the flash lamp cover can be decreased, the yield of the mobile terminal can be improved, the assembling difficulty of the mobile terminal can be reduced, and costs can be decreased.

A method for manufacturing the spark plug comprising bending a ground electrode that is joined to a metal shell, along a first die, the first die having an end portion to be pressed against an inner surface of the ground electrode, and a flat surface portion contiguous to the end portion via a curved portion bulging outward, the flat surface portion being formed to be orthogonal to an axial line and includes a first step of pressing the end portion of the first die against the ground electrode.

The invention provides a chip packaging electrode, a preparation method thereof and a chip packaging structure. The chip packaging electrode includes: an electrode plate and a first molybdenum-copper alloy layer, an elastic layer and a second molybdenum-copper alloy layer stacked on the electrode plate, wherein the first molybdenum-copper alloy layer and the second molybdenum-copper alloy layer The mass percentage of molybdenum in the copper alloy layer increases gradually along the direction away from the electrode plate, and the elastic layer is made of a composite material formed of copper and elastomer. In the first molybdenum-copper alloy layer and the second molybdenum-copper alloy layer, copper ensures that the electrode has excellent electrical conductivity. Since the thermal expansion coefficient of molybdenum is more compatible with the chip, the damage caused by the thermal expansion coefficient mismatch to the electrode or chip is reduced. ; In the elastic layer, copper ensures the conductivity of the electrode, and the addition of elastomer increases the elasticity of the electrode, further reducing the risk of mechanical damage to the chip. The packaging electrode has a compact structure, and the distance between the electrode and the chip is suitable, which ensures good heat dissipation of the chip.

The invention discloses a side-inserted mounting and fixing mechanism for an intercooler. The side-inserted mounting and fixing mechanism comprises an intake manifold (200), the intercooler (100) arranged in the intake manifold (200), at least one bulge (120) formed in the top of the intercooler (100) and at least one fixed hole (220) formed in the intake manifold (200), wherein the fixed holes (220) and the bulges (120) are connected in a mode of one-to-one correspondence. The side-inserted mounting and fixing mechanism optimizes the reliability of the intercooler arranged in the intake manifold, reduces the potential risk of the service life of an engine, meanwhile reduces the dimensional tolerance requirement of the manifold and the intercooler, further reduces the manufacturing workload, and ensures the mounting operability of the intercooler and the manifold.