108results about How to "There will be no poor contact" patented technology

The invention provides a spirally-driven slidably-punctured electronic smoking set, which comprises a smoking set shell, wherein a gas suction hole is formed in one end of the smoking set shell, and threads are arranged on the inner wall or outer wall of the smoking set shell; a tobacco juice atomizer and a tobacco juice capsule are arranged in the smoking set shell; a puncturing liquid guide frame is arranged on one side, which is close to the tobacco juice capsule, of the tobacco juice atomizer; and the tobacco juice atomizer slides in the smoking set shell along the axial direction of the smoking set shell. By the spirally-driven slidably-punctured electronic smoking set, the puncturing liquid guide frame on the tobacco juice atomizer can puncture the tobacco juice capsule in a sliding mode under the driving of a spirally-driven mode, the puncture direction and puncture force of the puncturing liquid guide frame during the puncture of the tobacco juice capsule are not needed to be mastered by users, and after the users screw the threads, the puncturing liquid guide frame can puncture the tobacco juice capsule according to the accurate direction and force; and after the puncturing liquid guide frame punctures the tobacco juice capsule, the tobacco juice capsule can keep high tightness except for tobacco juice which is led out slowly along the puncturing liquid guide frame, so that the using time of the tobacco juice capsule can be prolonged, and the tobacco juice can be prevented from being polluted.

The invention discloses a manufacturing process of a high-density printed board with holes in pads. The process is characterized by comprising the following steps: filling slurry in holes in pads formed in a welding plate of a circuit board, filling the holes in pads in the welding plate completely to form a solid body is formed; polishing, thus the slurry filled in the holes in pads on the welding plate of the whole circuit board is smooth, and forming the same plane with the adjacent conductor surface; and carrying out hole metallization and electroplating on hole walls of other non-holes in pads on the circuit board, thus a conductive copper layer is coated on the upper surface and the lower surface of the holes in pads filled with the slurry. When array welded balls or QFP (quad flat pack) pins and the like at the bottom part of a U-BGA (ball grid array) package appliance are connected with the welding plate of the holes in pads, the full contact with the welding plate can be ensured, and the problems of nonfarm welding and insufficient welding can be prevented form occurring.

The invention discloses an automatic system for welding a metal part and a coaxial cable. The automatic system comprises a tin feeding device, a heating device, a movement positioning device and an electric control device, wherein the tin feeding device is arranged at a first station and is used for adding tin paste to the connecting position of the metal part and the coaxial cable, the heating device is arranged at a second station and is used for performing induction heating on the connecting position to which the tin paste is added, the movement positioning device is used for respectively clamping the metal part and the coaxial cable and moving to the first station and the second station in sequence, and the electric control device is used for controlling all of the devices of the automatic system. The invention further discloses an implementation method for welding the metal part and the coaxial cable. According to the automatic system and the implementation method, the non-contact induction heating is realized, an endothermic effect of a metal structural member is basically solved, additionally, the welding spot heating uniformity is guaranteed, and the welding reliability of products is increased.

The lightning arrester includes composite housing (5), valve body setup in cavity of composite housing (5) fixedly, upper metal electrode fixed on top part of the valve body, and lower metal electrode fixed on low part of the valve body. Characters are that the valve body is in columned long bar shape. Ratio between thickness H of long bar type valve body and diameter D is larger than 2. the lightning arrester features high mechanical strength fewer manufacturing steps.

The invention provides a wireless headset and charging device and relates to the technical field of the wireless headsets. The wireless headset comprises a wireless headset shell, wherein a wireless charging receiving assembly is set in the wireless headset shell. The wireless charging receiving assembly is used for being wirelessly connected with a wireless charging transmitting assembly of a charging device, receiving charging electric energy and a communication signal transmitted by the wireless charging transmitting assembly, and transmitting the communication signal to the wireless charging transmitting assembly. The charging device comprises a charging device shell, wherein the wireless charging transmitting assembly is set in the charging device shell. The wireless charging transmitting assembly is used for being wirelessly connected with the wireless charging receiving assembly of the wireless headset, transmitting the charging electric energy and the communication signal to the wireless charging receiving assembly, and receiving the communication signal transmitted by the wireless charging receiving assembly. According to the wireless headset and the charging device provided by the invention, charging and communication are carried out in a wireless mode, charging and communication stability is improved, use is facilitated, and service life of products is prolonged.

The invention discloses an independent detachable type mechanism for refrigerator mounting. A refrigerator comprises a refrigerator component; and the refrigerator component is matched with the independent detachable type mechanism and is used for mounting of a low-temperature superconducting magnet refrigerator. The independent detachable type mechanism comprises a first-stage cooling tube, thermal shield flanges, regulation bolts, a second-stage cooling tube and a helium groove; the first-stage cooling tube and the second-stage cooling tube are connected with the two end surfaces of the thermal shield flanges respectively; the second-stage cooling tube is communicated with the helium groove; a vacuum cover plate flange is arranged between the first-stage cooling tube and each middle flange; each middle flange is connected with the corresponding vacuum cover plate flange through a bolt; the first-stage cooling tube is welded with the vacuum cover plate flanges, a pull rod support is connected to each vacuum cover plate flange; a through hole is formed in each thermal shield flange; and each regulation bolt penetrates through the corresponding through hole to be connected with eachpull rod support. The mechanism has the characteristics of simple structure, easy operation and low maintenance cost.

The invention relates to the technical field of sockets and particularly relates to a spring-type safety socket with an anti-electric shock function, which comprises a shell. A fixing mechanism is fixedly mounted in the middle of one side of the shell; a plurality of grooves are uniformly formed in the upper surface of the shell; a plurality of power connection slots are formed in the upper surface of a power connection box; a partition plate is fixedly installed on the upper portion in the power connection box; an anti-electric shock mechanism is fixedly mounted below each power connection slot; a power connection contact block is fixedly mounted in the middle of the bottom in the power connection box; a connecting block is fixedly installed on the lower portion in the power connection box through two reset mechanisms; the two reset mechanisms are located on the two sides of the connecting block respectively; a second clamping groove is formed in the middle of the lower surface of theconnecting block; a conductive column is communicated between the first clamping groove and the second clamping groove; and the second clamping groove is located over the power connection contact block. The spring type safety socket with the anti-electric shock function has waterproof, dustproof and anti-falling functions, also has the anti-electric shock function, and is stable in power connection during use.

The invention discloses a cell internal resistance detector which comprises a base, and is characterized in that the base is equipped with a probe fixing seat; the probe fixing seat comprises a left probe fixing seat and a right probe fixing seat; the probes in contact with electrodes of the detected cell are mounted on the left probe fixing seat and the right probe fixing seat oppositely; and a detected cell fixing seat is mounted on the base and located between the left probe fixing seat and the right probe fixing seat. The cell internal resistance detector is convenient to operate, and the measuring accuracy is high.

The invention relates to an electrode tab clamping device for battery formation and charging and discharging of lithium battery formation. According to the electrode tab clamping device, a voltage conducting layer and a current conducting layer are each formed through the steps that no less than one divided conducting strip are arranged at even intervals to form a conducting area, and then the conducting area is communicated through a corresponding conducting bus to form the conducting layer; the conducting area of the voltage conducting layer is in gap meshing with the conducting area of the current conducting layer through the corresponding conducting strips to form an electrode tab clamping area. The electrode tab clamping device for battery formation has the advantages that the structure is reasonable, manufacturing is convenient, and the electrode tab clamping device can adapt to formation of various types of lithium batteries; meanwhile, the phenomena that short circuit of a voltage line and a current line occurs, and the electrode tab voltage sampling precision is influenced by charging and discharging currents cannot occur during work; in addition, the phenomenon that the electrode tab clamping device is in bad contact due to the fact that an upper pressing plate and a lower pressing plate are unsmooth cannot occur, the service life is long, and the safety and reliability are achieved.

The invention discloses a hand warmer which comprises a shell body and a battery fixed in the shell body. A battery limiting board matched with the battery in shape is arranged inside the shell body; the battery is fixed on the battery limiting board through glue. Due to the fact that the battery limiting board matched with the battery in shape is arranged inside the shell body, the position of the battery is limited by the battery limiting board, one side face of the battery is coated with the glue so that the circuit board can be fixed in the battery limiting board, the battery cannot swing when the hand warmer moves or is used, and the phenomenon that a wire is in poor contact with the battery due to the swinging of the battery is avoided.

A flashlight comprises a light cylinder, a first light source assembly, a front cover and a rear cover assembly. The light cylinder is a holding chamber with two ends provided with openings; the first light source assembly is arranged inside the holding chamber; the first light source assembly comprises a support and a first light source which is arranged on the support; two first springs and two first conductive parts are arranged on the support; the two first conductive parts are respectively sleeved on the two springs; the first springs are truncated-cone-shaped spiral springs; the first conductive parts are sleeved at small ends of the first spring; portions of the first springs, which extend inside the first conductive parts, have a plurality of coils which are equal in screw pitch; portions of the first springs, which are arranged outside the first conductive parts, have a plurality of coils which are equal in screw pitch; the sum of screw pitches of the spring coils which are arranged inside the first conductive parts is smaller than that of the spring coils which are arranged outside the first conductive parts; the two first conducive parts are abut against the positive electrode and the negative electrode of a battery pack of the flashlight; the front cover and the rear cover assembly are respectively arranged at two ends of the light cylinder to seal the holding chamber. The flashlight has the advantages of being high in reliability and convenient to maintain.

The invention provides an intelligent standing long jump board based on a flexible array pressure senor. The intelligent standing long jump board comprises a sensing element, a central processing module, a long jump board body, a take-off board and a handheld device, wherein the sensing element is the flexible array pressure sensor and laid on the surface of the long jump board body, a test area is formed, and the sensing element is used for detecting sensing signals produced in the stepping and pressing position when the test area is stepped and pressed and sending the sensing signals to the central processing module; the central processing module collects the sensing signals and calculates and outputs long jump performance, a transmission module transmits the long jump performance to the handheld device for display and voice broadcast; the take-off board is used for determining the take-off position; the handheld device is used for storing, managing, displaying and broadcasting the long jump performance. According to the intelligent standing long jump board based on the flexible array pressure senor, the flexible array pressure senor is adopted as the sensing element, the detection precision, the reliability and the stability are higher, the long jump test range can be set, and the intelligent standing long jump board is convenient to carry and use and supports wireless transmission and download of data.

The invention relates to a lighting module with the LED as light resource, which comprises several LED (1), and a circuit board (2). Wherein, the circuit board (2) comprises a bottom plate (21) and a wire distributed layer (22); the pins of LED (1) and the power wire (3) (4) are welded on the wire distribution layer (22) of circuit board; some LED (1) is series and/or parallel with the power wire (3) (4) and the upper end face of wire distribution layer (22) has a water-proof insulation layer (4) for covering its whole surface, and packing the pins of LED (1) and the welding points of power wire (3) (4). The invention can avoid the disable contact between the LED and the circuit board caused by accumulated dust and avoid the rain to confirm normal operation. The invention has better reliability, long service life, reasonable structure, and better properties.

The invention discloses a connector, which comprises a pin tube, a spring and a pin shaft, wherein the spring is fixedly installed in the pin tube, and the end surface of the pin shaft which is connected with the spring is processed to be an inclined surface. The connector provided by the invention has the characteristics that the structure is simple, the pin shaft is guaranteed to be in full contact with the pin tube during working, the situation of poor contact is avoided and the normality of a circuit is guaranteed.

The invention relates to a light triggered mechanical keyboard switch, which comprises a keyboard fixing base, a non-contact electronic assembly and a PCB (Printed Circuit Board) arranged below the keyboard fixing base, and is characterized in that the non-contact electronic assembly comprises a light receiving component, a light emitting component, a light guiding column, a light collecting column, the light receiving component and the light emitting component are correspondingly arranged on the PCB, and the keyboard fixing base is provided with a switch body. The light triggered mechanical keyboard switch has the beneficial effects that output of switching signals is realized by adopting switching of optical signals, and the switch body is not required to be internally provided with a metal piece, so that a circumstance of poor contact between metal pieces does not appear, a circumstance of short circuit does not appear either, and the waterproofness of the switch body is realized; both the light emitting component and the light receiving component are arranged on the PCB, and the switch body is arranged on the keyboard fixing base, so that the switch body is enabled to be assembled and disassembled easily; and the light emitting component and the light guiding column serve as a light source of the switch body, thereby enabling the switch body to realize the property of light emitting on the one hand, and also providing a light source for the non-contact electronic assembly at the same time.

The invention discloses a pipe-type wireless power supply transmitter and a wireless power supply system. The pipe-type wireless power supply transmitter comprises N resonant rings which are sequentially arranged according to a preset path and preset intervals, wherein the N resonant rings comprise M active resonant rings; any two active resonant rings are not adjacent; N and M are positive integers; and M is less than one half of N. It is thus clear that a pipe-type energy channel is formed by the N resonant rings which are sequentially arranged according to the preset path and the preset intervals, so that electrical appliances in a pipe can be wirelessly supplied with electricity and complete isolation of the electrical appliances and a power grid can be achieved. Compared with existing contact-type power supply, the pipe-type wireless power supply transmitter and the wireless power supply system have the advantages that the problems of electric leakage, sparks, a poor contact, abrasion and the like are solved and the safety is very high.

The invention discloses a computer interface dust removing and blockage preventing structure. A fixed outer frame is included. A movable inner frame is movably arranged in the fixed outer frame. The position, at the upper end of the movable inner frame, of the fixed outer frame is provided with an opening. The positions, on the two sides of the opening, of the outer surface of the fixed outer frame are fixedly provided with supporting plates. The supporting plates are movably provided with a lead screw through bearings. The lead screw is in threaded connection with an adjusting nut. The lowerend face of the adjusting nut penetrates through the opening and is connected with the outer surface of the upper end of the movable inner frame. The end, close to the adjusting nut, of the movable inner frame is provided with a connecting piece through the arrangement of a first concave port. The connecting piece is arranged on the inner side wall of the side, close to the first concave port, ofthe fixed outer frame. The positions, at the upper end and the lower end of the first concave port, of the movable inner frame are provided with brushes. The computer interface dust and blockage preventing structure is simple, reasonable in design and capable of effectively removing dust and foreign matter in an interface, the situation of interface blockage or poor contact is prevented, and meanwhile dust entry can be prevented.

The invention relates to a transmission mechanism, in particular to a transmission locking device. The device comprises a mounting plate, a servo motor, a speed reducer, a rack and an elastic device;the servo motor and the speed reducer are connected, the servo motor is arranged on the mounting plate through a motor base in a sliding manner, a gear is arranged on an output shaft of the speed reducer, the gear is arranged on the rack in a pressing and contact manner through the elastic device, the elastic device comprises a screw, a nut base, a nut and a spring, the nut base is arranged on themounting plate, one end of the screw penetrates through the nut base to be connected with the motor base, the other end of the screw is provided with the nut, and the position, between the nut base and the nut, of the screw is sleeved with the spring. The transmission locking device is simple in structure, convenient to maintain, low n manufacturing cost, stable in property, and free of poor contact, tooth jumping, clamping and the like.

The invention relates to the technical field of electronic components, and aims at solving the technical problem that when an electric brush of the potentiometer is adjusted, adjustment is inaccurate due to ineffective contact caused by long-term friction. A tightly adjusted and controlled potentiometer provided by the invention comprises a main potentiometer body, a controller and a motor, wherein the main potentiometer body comprises an insulating bottom plate, a rotating shaft, a semi-arc resistor body and an electric brush; the rotating shaft is arranged at the centre of the insulating bottom plate; the semi-arc resistor body rotates around the rotating shaft; the electric brush comprises an electric brush base, a connection part and a contact part; the electric brush base is connected with the rotating shaft; the contact part is connected with the electric brush base through the connection part; the semi-arc resistor body is embedded into a groove which is formed by the electric brush base, the connection part and the contact part; a fastener is arranged on the connection part, and is used for adjusting the distance between the contact part and the electric brush base; the controller comprises a voice sensor, a processor and a control circuit; the motor is connected with the rotating shaft; and the control circuit is connected with the motor, so that good contact of the electric brush and the resistor body can be guaranteed, so as to realize flexible adjustment and control.