94results about How to "Short transmission path" patented technology

The invention discloses a board feeding machine for a printed circuit board (PCB) production line, which comprises a left trough plate (1) and a right trough plate (2), wherein both the lower parts of the left trough plate (1) and the right trough plate (2) are respectively provided with a clamping block (4) capable of clamping the downmost PCB, the clamping block (4) is connected with a clamping cylinder (5) driving the clamping block to act; both the lower parts of the left trough plate (1) and the right trough plate (2) are respectively provided with a board bearing platform (6), and the distance between the two board bearing platforms (6) is slightly smaller than the distance between two lamination channels (3); a stripper gap (7) is arranged between the board bearing platform (6) and the corresponding left trough plate (1) or between the board bearing platform (6) and the corresponding right trough plate (2), and one end of the stripper (8) is located in the stripper gap (7) while the other end thereof is connected with a stripper cylinder (9); and the lower part of the board bearing platform (6) is provided with a transmission guide rail (10) for feeding the fell PCBs in the production line, and the lower part of the transmission guide rail (10) is provided with a supporting plate (12) connected with a supporting plate cylinder (13). The board feeding machine in the invention has simple structure, short board transmission distance and safety and reliability.

Provided is a composite light guide plate. The composite light guide plate comprises a transparent substrate (1), a light leading-out film (2) is attached on the substrate (1), and the bottom face of the light leading-out film (2) is a combined face of a convex face (3) and a concave face and is the attached face with the substrate. A natural transitional face of the convex face and the concave face is of an inclined face or an arc-shaped face and serves as reflection faces (5, 6) of light. The width or the diameter of the convex face is a, a=0.005-0.5mm, surface roughness R of the convex face and the transitional face is smaller than 0.05, the height h of the reflection face is 0.65-2.5 times of the width or the diameter a of the convex face, and the included angle between tangent plane of any point on the reflection face and the top face of the substrate is 30 degrees-80degrees. The light guide plate is applied to lighting or luminous displaying, and the production of the light guide plate includes six steps: choosing substrate material; making the substrate; choosing the light leading-out material; making a mold; and making and attaching the light leading-out film. Compared with the prior art, the composite light guide plate has the advantages of being high in lighting effect, and controllable in radiance and uniformity, and possessing a self-protection interface structure and the like.

The invention relates to the technical field of power cable accessories, in particular to a conductive cone, a cable terminal and a cable intermediate joint. The conductive cone comprises a first transparent insulator arranged inside and a transparent conductive layer covering the outside, and the transparent conductive layer completely covers the first transparent insulator. The cable terminal comprises the conductive cone, and the conductive cone is arranged at the joint of the insulating layer of the cable and the semi-conductive insulating shielding layer of the cable in a sleeving manner.The cable intermediate joint comprises a pair of conductive cones, the pair of conductive cones are oppositely arranged, the conductive cones are arranged at the joint of the insulating layer of thecable and the semi-conductive insulating shielding layer of the cable in a sleeving mode, and a pair of cable conductors located in the center of the cable joint are fixed through a connecting structure. The invention provides the conductive cone, the cable terminal and the cable intermediate joint which are wide in application range and high in partial discharge monitoring sensitivity.

The invention provides a wavelength division multiplexer and a corresponding optical module. The wavelength division multiplexer comprises an input optical fiber, a first output optical fiber, a second output optical fiber, a focusing lens, and a dielectric film filter. The input optical fiber, the first output optical fiber and the second output optical fiber are located on the left side of the focusing lens, and the dielectric film filter is located on the right side of the focusing lens. The dielectric film filter has a first light splitting surface and a second light splitting surface, wherein the second light splitting surface has a preset angle relative to the first light splitting surface, and the plane where the first light splitting surface is located intersects the plane where the second light splitting surface is located. According to the wavelength division multiplexe, composite light beams are split through the filter with a specific structure, so that the output optical fiber correspondingly outputs light with a corresponding wavelength, and the purpose of splitting the lights is achieved. In the actual manufacturing process, the process of sticking a reflection pieceand the filter is eliminated, the manufacturing process is simple, and the yield is high.

The invention belongs to the technical field of photocatalysts, and particularly relates to an S-type heterojunction catalyst as well as a preparation method and application thereof. The preparation method comprises the steps of S1, synthesizing MIL-68 (In); S2, synthesizing NiIn LDH; and S3, synthesizing NiIn LDH / In2S3. According to the catalyst, In2S3 is grown on a NiIn LDH nanosheet in an epitaxial manner to construct a NiIn LDH / In2S3 heterojunction with a p-n type columnar structure. The NiIn LDH / In2S3 heterojunction is formed through one-step vulcanization of NiIn LDH, the advantages of NiIn LDH and In2S3 are integrated, higher light utilization efficiency and electron-hole separation capacity are achieved, electron-hole recombination is greatly inhibited, and CO2 pollutants in air can be effectively converted and utilized.

The invention discloses a board feeding machine for a printed circuit board (PCB) production line, which comprises a left trough plate (1) and a right trough plate (2), wherein both the lower parts of the left trough plate (1) and the right trough plate (2) are respectively provided with a clamping block (4) capable of clamping the downmost PCB, the clamping block (4) is connected with a clampingcylinder (5) driving the clamping block to act; both the lower parts of the left trough plate (1) and the right trough plate (2) are respectively provided with a board bearing platform (6), and the distance between the two board bearing platforms (6) is slightly smaller than the distance between two lamination channels (3); a stripper gap (7) is arranged between the board bearing platform (6) andthe corresponding left trough plate (1) or between the board bearing platform (6) and the corresponding right trough plate (2), and one end of the stripper (8) is located in the stripper gap (7) while the other end thereof is connected with a stripper cylinder (9); and the lower part of the board bearing platform (6) is provided with a transmission guide rail (10) for feeding the fell PCBs in theproduction line, and the lower part of the transmission guide rail (10) is provided with a supporting plate (12) connected with a supporting plate cylinder (13). The board feeding machine in the invention has simple structure, short board transmission distance and safety and reliability.

The invention relates to a thin film transistor, comprising a source electrode, a leakage electrode, a semiconductor layer and a grid electrode. The leakage electrode and the source electrode at intervals; the grid electrode, the semiconductor layer, the source electrode and the leakage electrode are arranged in an insulating way through an insulating layer, wherein the semiconductor layer comprises a plurality of carbon nano tubes, and two ends of at least part of the carbon nano tubes are electrically connected with the source electrode and the leakage electrode respectively.

An asynchronous transfer mode machine comprises a processing mechanism (101) and a currency storage mechanism (102), the processing mechanism (101) comprises a first channel (1022) and a temporary storage module (1014), and the first channel (1022) is provided with a receiving module (1011), a currency detection module (1012) and a first node (1013); when a user deposits currency, the paper currency is received by the receiving module (1011) and vertified by the currency detection module (1012), the recognizable paper currency is transferred to the temporary storage module (1014) for storage, and the unrecognizable paper currency is sent back to the receiving module (1011); and when the user withdraws the currency, the paper currency is transferred to the currency detection module (1012) from the temporary storage module (1014) and vertified by the currency detection module (1012), the recognizable paper currency is transferred to the receiving module (1011), and the unrecognizable paper currency is sent back to the temporary storage module (1014) for storage. Thereby, the paper currency transmission path is short, and efficiency is improved; and the paper currency is vertified repeatedly and can be recognized efficiently, and safety is high.

The invention provides a carbon dioxide detection apparatus and detection method used for life detection in ruins. In the apparatus, a sampling rod sleeve is of a hollow cylindrical structure, a conical head is fixed at a front of an internal support to compose a sampling inner core, and the rear end of a conical sleeve and the front end of the sampling rod sleeve is in sealing connection to form a hollow sampling rod; the sampling inner core is inserted into the sampling rod and arranged to be slidable, and a locking device is mounted on the sampling inner core; a gas sampling pump, a carbon dioxide sensor and a separator plate are fixed on the internal support, the separator plate isolates the gas sampling pump from the carbon dioxide sensor, the separator plate and the inner wall of the sampling rod are in sliding hermetic seal, and an outlet air pipe of the gas sampling pump penetrates the separator plate to communicate with the carbon dioxide sensor; and the carbon dioxide sensor is electrically connected with a display control alarm device. With the detection apparatus and detection method provided by the invention, the problem that a conventional carbon dioxide life detection apparatus is not applicable to detection in an environment of rubbles is overcome, and searching of people who are trapped in rubbles in a rescue scene is facilitated.

Elevator arrangement for setting the starting torque of the motor of an elevator machinery, the elevator machinery (1) being mounted on a guide rail (2) in an elevator shaft. The elevator arrangement comprises at least one power sensor (3, 4, 5, 6) for determining the imbalance moment that the car load produces in the elevator machinery.