69results about How to "Does not affect protection" patented technology

The invention discloses a light sensation module and a display panel. The light sensing module comprises a substrate; a plurality of light sensing unit switch tubes located on the substrate; a first organic flat layer which is positioned on one side, far away from the substrate, of the light sensing unit switch tube; a plurality of light sensing units which are positioned on one side, far away from the light sensing unit switch tube, of the first organic flat layer; a common electrode which is located on the side, away from the first organic flat layer, of the light sensing unit; a first inorganic layer which is located between the first organic flat layer and the common electrode, and is provided with a first groove, wherein the first groove is located between every two adjacent light sensing units. According to the present invention, the risk of film stripping of the first organic flat layer can be reduced, and the performance reliability of the light sensing module is improved.

The invention discloses an SCR electrostatic protection device and the manufacturing method thereof. The structure of the device comprises a P-type injection region (2) in a P well (4), an N-type injection region (1) in the P well (4), a P-type injection region (2) in an N well (3) and an N-type injection region (1) in the N well (3), and the N-type injection region in the P well (4) is added with a peripheral injection region (6) of N well. Because the invention is added with the peripheral N well region (the injection region of the N well) on the basis of traditional silicon controlled rectifier structure, the invention can reduce the turn-on voltage of the silicon controlled rectifier effectively without affecting the protection ability. Without adding new process condition, parasitic NPN and PNP which are used in ESD discharging can be started more easily, thus fully exerting the capacity of ESD.

The invention discloses an SCR electrostatic protection device and the manufacturing method thereof. The structure of the device comprises a P-type injection region (2) in a P well (4), an N-type injection region (1) in the P well (4), a P-type injection region (2) in an N well (3) and an N-type injection well (1) in the N well (3), and the P well is added with the P-type injection region (2), and a capacitance is arranged between the input terminal and the added P-type injection region. by adding the P-type injection region and the capacitance in the P well of the traditional SCR structure, the invention can reduce the turn-on voltage of the silicon controlled rectifier effectively without affecting protection ability, and the SCR structure is earlier and easier to be triggered, thus achieving better electrostatic protection effect.

The invention relates to an I / O port circuit structure with a hot plug function. The structure comprises an output buffer module, an input buffer module, a hot plug module and an ESD protection module, wherein the output buffer module is connected to a PAD end, an input signal and an input-output selection control end and is used for realizing a function of taking a port PAD as an output end; the input buffer module is connected to the PAD end and an output signal and is used for realizing a function of taking the port PAD as an input end; the hot plug module is connected to the PAD end through a resistor and is used for realizing hot plug; and the ESD protection module is connected to the PAD end and is used for realizing ESD protection of 2000 V. Through adding the hot plug circuit structure based on the conventional I / O port structure, the hot plug function of the device port is realized; and furthermore, the hot plug function is guaranteed while the structure has ESD resistance of 2000 V.

The invention relates to a method for utilizing stem section cuttage to propagate aeluropus. The method comprises turf-bed preparation, stem section selection, cuttage and field management. Cuttage of cuttage stem sections is carried out with the line spacing no smaller than 20cm and planting distance no smaller than 10cm, each stem section is contacted with the soil and pressed into the soil for 3-5cm, soil moisture is preserved to keep a full stand of seedlings, watering is performed to enable soil moisture content to be 15%-20%, the soil moisture content is maintained, and field management is carried out after 1-2 blades of stem section lateral buds grow out. The method enables cuttage survival rate to be over 80%, is simple and convenient to operate, does not damage wild environment of the aeluropus, is low in cost, enables rapid planting to be achieved, and has wide application prospect.

A forming method of a semiconductor structure includes providing a semiconductor substrate including a first zone having a plurality of separated storage grid structures and a second zone having a plurality of gate structures. First grooves are arranged between adjacent storage grid structures and second grooves are arranged between adjacent gate structures. The width of each first groove is smaller than that of the second groove. A liner layer is formed on the semiconductor substrate. The method also includes etching the liner layer for making the width of the top part of each first groove greater than that of the bottom part of each first groove; forming a second wall material layer on the liner layer; etching the second side wall material layer, forming a second side wall on the surface of the side wall of the gate structures and forming a medium layer filling the first grooves at the same time. By adopting the above method, the semiconductor structure forming technology can be simplified.

The invention relates to the field of clinical pathological diagnosis reagents, in particular to a special reagent for rapid microwave pathological tissue treatment and a preparation method thereof. The special reagent for rapid microwave pathological tissue treatment comprises an A liquid, a B liquid and a C liquid, the A liquid is prepared from, by volume, 70-90 parts of alcohol compound, 10-30parts of fatty acid and 1-10 parts of phenol; the B liquid is prepared from, by volume, 85-95 parts of alcohol compound and 0.1-5 parts of phenol; the C liquid is prepared from, by volume, 30-60 partsof long-chain hydrocarbon, 10-40 parts of isoparaffin, 10-20 parts of higher alcohols and 10-20 parts of methyl salicylate. According to the special reagent for rapid microwave pathological tissue treatment and the preparation method thereof, the collocation is reasonable, the preparation process is simple and convenient, the pathological diagnosis time is shortened to 1-3 hours, the special reagent for rapid microwave pathological tissue treatment does not contain any volatile substances harmful to the human body, and thereby ensuring the health of medical staffs and the environmental protection.

The invention discloses an Anti-static protection structure for a semiconductor, and the structure comprises a P type substrate. The P type substrate comprises an N well injection region and a P well injection region, which comprise respectively a P type injection region and an N type injection region. The P type injection region and the N type injection region are separated by a separation region of oxide layer. The P type injection region in the N well injection region and the N type injection well in the P well injection region are separated by another separation region of oxide layer. A polysilicon is arranged on the separation region of oxide layer between the P type injection region in N well injection region and the N type injection region in the P well injection region. The invention effectively decreases the threshold voltage of the thyristor. On one hand, the process condition is not increased; on the other hand, the parasitic NPN pipe and the PNP pipe which are used for ESD discharge become easier to be opened. The invention gives full play to ESD capability.

The invention discloses 5G base station installation equipment. The 5G base station installation equipment structurally comprises a plurality of shells, a plurality of shells are arranged; the shellsare arranged in a stacked mode. A bottom circular plate is fixedly arranged on the lower end face of each shell, a flange is fixedly arranged on the upper end surface of the bottom circular plate, a clamping cavity with an opening is formed in the flange, the bottom circular plate on the upper side is fixedly connected with the clamping cavity on the lower side in a matched mode. The fixed fit connection mode can adopt a bolt fixed fit connection mode; through cavities penetrating up and down are formed in the shells. Lightning protection equipment mounting devices for mounting lightning protection equipment are arranged in the through cavities. According to the equipment, the lightning protection equipment mounting device, the folding shielding device and the threading device are adopted,so that the communication equipment can be efficiently protected under severe weather conditions, and the equipment can be stacked and mounted conveniently, so that the equipment maintenance difficulty is reduced while the equipment mounting efficiency is improved.

The invention discloses an automatic bread maker which comprises a dough kneading device and a control unit, wherein the dough kneading device comprises a feeding control mechanism; the feeding control mechanism comprises a turntable, and a selecting cabin driven gear is fixed on the turntable; a selecting cabin driving gear is fixed on a selecting cabin motor; a stock bin is arranged on the turntable, a discharging port is formed outside the stock bin, and a discharging channel is also arranged in the stock bin; a closing unit is arranged at the discharging port; an end part of a discharging screw rod extending into a mounting space is arranged as a driving end, and a discharging driven gear is fixed at the driving end; an output shaft of a discharging motor is arranged as a rotating shaft, a discharging driving gear is sleeved on the rotating shaft in a rotating form, and the discharging driving gear comprises a near end face and a far end face; a positioning pin is projected on the rotating shaft; and a first positioning block, a second positioning block and a slope are arranged on the far end face, the slope is located between the first positioning block and the second positioning block, and the positioning pin is located between the first positioning block and the second positioning block. The stock bin is capable of accurately dosing according to the requirements repeatedly for many times, so that the automatic bread maker is more suitable for application in smart home.

The invention provides an edge hole finalization type railing and a construction method thereof. The edge hole finalization type railing comprises upper cross rods, lower cross rods, longitudinal rods and screw rods, wherein the two ends of the longitudinal rods are separately and detachably connected with the upper cross rods and the lower cross rods, and the two ends of the upper cross rods and the lower cross rods are hollow, and the upper cross rods and the lower cross rods are connected with the screw rods. The screw rods are provided with nuts, the other ends of the screw rods are connected with reserved mounting holes in the edge hole, the lower ends of the longitudinal rods are connected with toe boards, the interior of the toe boards is hollow, and weight materials are put into the toe boards, so that the stability of the whole device is increased. The edge hole finalization type railing is high in finalization, convenient to install and disassemble and firm and reliable, the subsequent construction progress is not affected, the high safety factor is achieved, the construction efficiency can be improved, labor is saved, the edge hole finalization type railing is convenient to turn over and convenient to store and transport after disassembling.

The invention provides a fabrication method of a metal housing. The method comprises the steps as follows: (1) a shell (1) is provided; the shell (1) is formed through a stamping process; and a pre-treatment process is carried out on the shell (1); (2) a structure reinforcer (2) is provided; the structure reinforcer (2) is an aluminum die casting; and the structure reinforcer (2) is combined in the shell (1) as a reinforcing structure; (3) a sand blasting process is carried out on the shell (1); and (4) an anodization process is carried out on the shell (1). The aluminum die casting is combined in the shell as the reinforcing structure, so that deformation of the shell in the sand blasting process is effectively reduced; and the obtained product is good in consistency and high in accuracy; the yield of a product is improved; the aluminum die casting in the sand blasting process can replace a sand blasting tool for protection; the production cost is saved; meanwhile, the corrosion influence on the structure reinforcer caused by a strong acid or alkali in the anodization process can be avoided; and the quality of the product is ensured.

The invention relates to the field of clinical pathological diagnosis reagents, and especially relates to a novel environmentally-friendly rapid biological tissue treatment liquid. The novel environmentally-friendly rapid biological tissue treatment liquid is mainly prepared from, by volume, 50-90 parts of an alcohol compound, 10-50 parts of isoparaffin and 10-50 parts of long-chain hydrocarbon. The novel environmentally-friendly rapid biological tissue treatment liquid does not contain formalin, xylene or other volatile substances harmful to human bodies, and ensures that the body health of medical staff and the protection of the environment are not affected during the preparation of pathological sections; the liquid can achieve fixation, dehydration and transparentization integrated one-stop treatment of the pathological tissues, so the diagnosis speed is shortened to 1-3 h; and the liquid can be applied to the production of the pathological sections of thyroids, lungs, livers, breasts, ovaries, prostates and other tissues, has a better effect than traditional tissue treatment reagents, and is a biological tissue treatment reagent that can completely replace the traditional tissue treatment reagents.

The invention discloses a falling protection device for an unmanned aerial vehicle, and relates to the technical field of unmanned aerial vehicles. The problem that a device is damaged if bounce is generated is solved. The device specifically comprises a machine body, a placement chamber is fixed to the outer wall of the bottom of the machine body through screws, four placement grooves are formedin the side wall of the placement chamber, airbags are placed on the inner walls of the placement grooves, a buffer chamber is arranged on the inner wall of the placement chamber, supporting columns are arranged on the inner wall of the buffer chamber, and impact columns are welded to the outer walls of one sides of the supporting columns. Through the arrangement of the placement chamber, when a gravity detector detects that the device vertically falls, the controller is operated to open the airbags, then the airbags can form a circular ring around the placement chamber to protect the bottom of the machine body, and when the machine body makes contact with the ground, the airbags are impacted and then a connecting circular plate makes contact with the ground and the second spring is compressed, at the moment, an impact rod rushes into the soil; and if the device rebounds, elastic claw hooks on the impact column can grab the ground to generate reverse acting force, so that the situationthat the device is damaged due to the fact that the rebound amplitude of the device is too large is prevented.

The invention belongs to the related aviation storage battery power supply and distribution technologies, and discloses an aviation storage battery heating and self-checking protection circuit. The aviation storage battery heating and self-checking protection circuit adopts two heating tapes, can heat a storage battery evenly through coating the storage batter with the two heating tape, can keep constant temperature of the storage battery within a certain range of a design value, can monitoring failures such as open circuit, short circuit and heating belt damage grounding of a heating circuit,can realize adjustment of a protection range through configuration, does not affect the protection effect by fluctuations of an input voltage, can lock the heating line when a fault occurs, is saferand more reliable, and can be extended and applied to all resistance wire type heating circuits. The aviation storage battery heating and self-checking protection circuit realizes the heating of a settemperature value of the storage battery, can realize real-time monitoring of the heating circuit, and ensures the safety and reliability of the circuit.

The invention discloses an outside transparent box body of a three-dimensional shell body of a car backup door. The outside transparent box body of the three-dimensional shell body of the car backup door is used for solving the technical problem that a two-dimensional shell body of the car backup door is made to be of a structure which has the three-dimensional effect and is richer in change. According to the technical scheme, the outside transparent box body is arranged on the outer side of the shell body of the car backup door, the outside transparent box body is composed of an outer transparent material layer, a plurality of frames and an inner shell, a three-dimensional decoration is arranged inside the outside transparent box body, an externally-inlaid part is arranged on the outer side of the outside transparent box body, and four added evolutions of an outer color layer, weak reflection film, a transparent protective layer and embossing patterns can be further added. In addition, a plurality of novel evolution structures formed by a combined evolution structure of four outside transparent box bodies and a pierced evolution structure of two box bodies in a mutually-combined mode can be improved.

The invention discloses a double-layer moving-out lifting stereo garage. The stereo garage is composed of a fixing frame, a movable parking frame, vehicle carrying plates, a parking frame moving device, a vehicle carrying plate lifting device, a control system, a safety protection system and the like. According to the double-layer moving-out lifting stereo garage, an upper-layer mechanical parkingspace and a lower-layer self-propelled parking space are arranged at 90 degrees, the movable parking frame moves to the position of a channel when vehicles entering and exiting the upper-layer parking space, then the vehicle carrying plates are lowered, so that the lower-layer self-propelled parking space is avoided, and therefore the access problem of the vehicles at the upper-layer is solved; and no rail is arranged on the ground, so that the passing of the vehicles is not affected, and meanwhile, the safety of parking at the lower-layer and personnel is guaranteed by a fixed-frame steel structure protective shed.

A lamp, which includes: a lamp housing; a LED aluminum substrate installed in the upper chamber of the lamp housing; a heat radiation block installed in the lower chamber of the lamp housing; used to fasten the heat radiation block to the A gland in the lamp housing; a back cover matched with the gland, a drive board mounted on the back cover; and a connecting cable, used to electrically connect the aluminum substrate with LEDs to the drive board; Wherein, the lamp housing is provided with a partition between the upper chamber and the lower chamber, the partition is provided with a first opening, the cooling block is provided with a second opening, the gland is provided with a third opening, the The connecting cables pass through the first opening, the second opening and the third opening correspondingly. The lamp proposed by the present invention improves heat dissipation. By increasing the heat sink, the heat dissipation surface area of ​​the lamp is increased, and the use performance of the lamp is improved without affecting the protection performance of the lamp.

The invention provides a pan-tilt camera protection cover for an unmanned aerial vehicle. The pan-tilt camera protection cover comprises positioning rods, inclined supporting rods and fixing sleeves;the outer wall of the circumference of the head end of a protection cover body is thickened; two round sliding sleeves are symmetrically arranged on a thickened outer ring in a supported mode; a positioning column is inserted in each of the two sliding sleeves in a sliding mode; when the protection cover body is sleeved on a camera, two mounting plates can abut against the bottom end surface of apan-tilt mounting base along with the sliding of the protection cover body, and the protection cover body is locked, fixedly hung on the pan-tilt mounting base through the two mounting plate through screws; one fixing sleeve is fixedly at the tail end of each of the four inclined supporting rods in an integrated mode; a base plate of each of the four fixing sleeves is provided with a counter borein a concave mode; and the four fixing sleeves are inserted and locked and fixed on the tail ends of four supporting legs of the unmanned aerial vehicle in an inserting way. According to the pan-tiltcamera protection cover, the two positioning columns are arranged, when the protection cover body is impacted, the sliding sleeves can compress two springs to slide upwards along the two positioning columns, and then a part of impact force can be buffered and diluted.

The invention relates to a kind of DC-drive motor used in DC-drive Narrow-gauge Locomotive for speed testing, which solves the problem that a speed sensor can not be installed on the existing DC-drive Narrow-gauge Locomotive. The motor contains a seat, an inner end cap on the commutator connecting to the seat, a bearing cap connected with the inner end cap, an end plate between the bearing cap and the bearing. The bearing cap is in a whole disc structure, its inner end has a counter bore for installing the speed sensor, and a plane is milled on its cylindrical end, and the plane has a hole of speed-sense open to the counter bore and TAPs for fixing the speed sensor. A groove is milled on the flange for installing the speed sensor at the junction of the inner end cap and the seat, which is facing to the plane on the bearing cap. The end plate is changed to a Dentate Disc structure.

The invention discloses a method for using barriers to avoid introducing impurities during crystal ingot casting. The method comprises the steps of adding the barriers at the bottom of a crucible; loading a selected seed crystal with good crystal orientation and no mechanical damage into a combustion chamber; conducting charging, vacuuming and ingot casting in sequence. The barriers can prevent crystal ingot raw material liquid from forming a nucleus which causes seed crystal disordered distribution and poor crystal introduction on a crucible silicon nitride coating, effectively avoid the downflow of crystal ingot raw material liquid and a corresponding contact reaction with the crucible, prevent a crucible bottom from sticking, reduce impurities in the crystal ingot casting, shorten a tail red area (low seed area), and improve the yield rate; the unqualified portions of heads and tails of obtained crystal rods are reduced; the method greatly improves the utilization rate of raw materials, educes waste of raw materials, reduces costs and increases production revenue.

The invention relates to a semi-submersible platform oil storage cabin and a semi-submersible platform. The oil storage cabin is arranged in a stand column of the semi-submersible platform, the interior of the oil storage cabin comprises a continuous type or non-continuous type cabin wall, and the cabin wall divides the oil storage cabin in the stand column into a plurality of spaces which communicate with one another in the horizontal direction. The semi-submersible platform comprises a set of stand columns, and each stand column comprises the semi-submersible platform oil storage cabin. According to the semi-submersible platform oil storage cabin and the semi-submersible platform, the semi-submersible platform oil storage cabin with an enough strength supporting structure can be provided, the oil and gas circulation of condensate oil can be met, and the problem that condensate oil related external conveying equipment is complex and tedious is solved; and furthermore, an inert gas pipeline system integrates the functions of inert gas venting, air permeability, storage oil overflow and diversion and the like, and the problem that a design pressure head is too large in the structural design of a condensate oil cabin due to the fact that air holes formed in the top of an inert gas pipeline are too high is solved.

The invention discloses an automatic control device used in the expanding process of an air bag restraint system. The automatic control device aims to solve the problem that in the prior art, a common air bag restraint system injuries the head, the neck and the chest of a passenger who sits too front, and particularly a passenger with the head being close to the installation position of the air bag restraint system. The automatic control device comprises an air bag body (1), an air bag body pressing plate (2), an air bag support (5), a gas generator (6) and four drawstring control devices (7). The gas generator (6) is installed in a round through hole of a base plate in the air bag support (5), the air bag body (1) is installed on a base plate around the air generator (6) through the air bag body pressing plate (2), the four drawstring control devices (7) are installed at the four corners of the air bag support (5), one end of each of four drawstrings B (4) in the four drawstring control devices (7) is connected with the middle part of the upper surface of the air bag body (1), and the stretching-out ends of four drawstrings A (3) in the four drawstring control devices (7) are connected with the peripheral part of the upper surface of the air bag body (1).

The present discloses a protection method to a vulnerable plumbago part. Firstly, 8-10 percent of polyethylene alcohol and carborundum powder are respectively made into two preparations such as A and B according to different weight ratio corresponding to 1-1.5: 1 and 1.6-3.5: 1; the plumbago part not being used is to be made with picking treatment, and then preparation B is coated on the surface of the plumbago evenly; after being arranged on the shade for air-drying, the plumbago is to be coated with a level of preparation B again; and after being air-dried again, the plumbago can be put into use. The inoxidizability and the intension for the plumbago after being treated can be increased to more than 1 time. If the plumbago is with cracked or damaged, preparation A can be coated on the cracked or damaged position and the damaged parts will be adhesive again. After being air-dried, preparation A is coated on the broken adhesive parts again; the process is repeated for 2 or 3 times, and then the plumbago is put into a stove with 2000 DEG C temperature and is to be agglomerated for 12-18 hours to make the intension in the broken part reach up to 90 percent higher than the original intension. The present invention can increase the life time for the plumbago.

A comfortable anti-smash anti-puncture shoe belongs to the shoe industry making technical field, and comprises a sole, and a toe cap and a shoe body arranged on the sole; the toe cap is provided with a steel toe; the upper portion of the steel toe in the height direction is wrapped by a toe cap surface layer, and a lower inner side of the steel toe is provided with a lining; the front end of the steel toe in the length direction is provided with a toe give position hole; the steel toe is provided with the toe give position hole, so toes of a wearer cannot touch the steel plate layer in walking, only soft feeling of the lining and top cap surface layer can be felt, thus greatly improving shoe comfort level, and processing is convenient; the comfortable anti-smash anti-puncture shoe can save material without affecting shoe protection function.

The invention relates to a multifunctional change purse. The multifunctional change purse comprises a strap (1), a strap adjusting button (2), a change purse cover (3), a purse button (4), a change purse body (5) and a pen container (6). The multifunctional change purse is characterized in that the pen container (6) is arranged on the lateral face of the change purse body (5), the change purse body (5) and the strap (1) are fixedly connected into a whole, and the strap adjusting button (2) capable of being used for adjusting the length of the strap (1) is arranged on the strap (1). By means of the multifunctional change purse, the problems that in the sketching and painting process, a sketching person often stands for drawing and sketching with a drawing board in one hand and a brush in the other hand, and when brushes in different models are changed according to drawing needs each time, the sketching person needs to bend down to search a pen container placed on the ground for the brushes, so that the waist is prone to being sprained; meanwhile, a change purse which is used for containing small precious objects and contained in a pocket is prone to falling and losing from the pocket due to an overlarge movement range during brush changing are solved.

A high-dropping point corrosion-resistant seal wax for cables and anchor heads of bridges is a mixture composed of the following components including, by weight, 35-60 parts of oxidized polyethlene wax, 8-22 parts of candelilla wax, 4-12 parts of oleic acid, 10-35 parts of polyolefin resin, 2-7 parts of a compatibilizer, 5-15 parts of Vaseline, 3-20 parts of liquid rubber, 2-6 parts of antioxidant, 1-5 parts of a defoamer, and 4-15 parts of an antirust agent. A preparation method comprises: successively adding the components into a heating container, and maintaining a certain temperature and stirring the mixture. The high-dropping point corrosion-resistant seal wax is good in defoaming effect, is high in dropping point, is high temperature resistant, has great sealability, is low in shrinking percentage, is high in attachment force, has great weather resistance and is long in corrosion-resistant period; therefore, the seal wax has long-acting protective effect on the cables and anchorheads of bridges, and other steel members, thus prolonging the service life thereof.

The invention discloses an Anti-static protection structure for a semiconductor, and the structure comprises a P type substrate. The P type substrate comprises an N well injection region and a P well injection region, which comprise respectively a P type injection region and an N type injection region. The P type injection region and the N type injection region are separated by a separation region of oxide layer. The P type injection region in the N well injection region and the N type injection well in the P well injection region are separated by another separation region of oxide layer. A polysilicon is arranged on the separation region of oxide layer between the P type injection region in N well injection region and the N type injection region in the P well injection region. The invention effectively decreases the threshold voltage of the thyristor. On one hand, the process condition is not increased; on the other hand, the parasitic NPN pipe and the PNP pipe which are used for ESD discharge become easier to be opened. The invention gives full play to ESD capability.

The invention provides a split structure type safety belt retractor which comprises a retractor body and a vehicle sensing assembly, and the retractor body and the vehicle sensing assembly are arranged in a split mode. The retractor body is provided with a locking mechanism used for locking a braid when the braid is rapidly drawn out, the locking mechanism is connected with the vehicle sensing assembly through a linkage device, and the linkage device is used for driving the locking mechanism to lock the braid when the vehicle sensing assembly is activated. According to the split structure type safety belt retractor provided by the invention, the chair back can be overturned in a large range, and the normal vehicle sensing function of the safety belt retractor and the protection of the safety braid on passengers are not influenced.

The invention relates to a kind of DC-drive motor used in DC-drive Narrow-gauge Locomotive for speed testing, which solves the problem that a speed sensor can not be installed on the existing DC-drive Narrow-gauge Locomotive. The motor contains a seat, an inner end cap on the commutator connecting to the seat, a bearing cap connected with the inner end cap, an end plate between the bearing cap and the bearing. The bearing cap is in a whole disc structure, its inner end has a counter bore for installing the speed sensor, and a plane is milled on its cylindrical end, and the plane has a hole of speed-sense open to the counter bore and TAPs for fixing the speed sensor. A groove is milled on the flange for installing the speed sensor at the junction of the inner end cap and the seat, which is facing to the plane on the bearing cap. The end plate is changed to a Dentate Disc structure.