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32results about How to "Achieve waterproof and dustproof effect" patented technology

Terminal front cover assembly and mobile terminal

The invention relates to a terminal front cover assembly comprising a housing, a glass cover plate, waterproof glue, a display screen, and a first shielding part. The housing has an accommodation cavity; and an accommodation groove that encircles the periphery of the accommodation cavity is formed in the wall of the accommodation cavity. The glass cover plate is arranged in the accommodation cavity; and a gap is formed between the side surface of the glass cover plate and the wall of the accommodation cavity. The waterproof glue is arranged in the accommodation cavity in a spraying mode and is compressed on the glass cover plate and the accommodation cavity to fill the gap. The first shielding part is arranged on the wall of the accommodation cavity in a protruding mode and is abutted against the side surface of the glass cover plate; and the first shielding part is located at one side of the accommodation groove to shield the waterproof glue. According to the invention, because the waterproof glue is arranged in the accommodation groove and is compressed between the glass cover plate and the accommodation groove, falling of external water or dust between the glass cover plate and the housing can be prevented, thereby realizing the waterproof and dustproof effects. Besides, the first shielding part is arranged at one side of the accommodation groove to shield the waterproof glue, so that the external decoration effect of the terminal front cover assembly can be guaranteed. In addition, the invention also provides a terminal containing the terminal front cover assembly.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD

LED (light-emitting diode) advertising lamp box light source based on 220V AC (alternating current) power supply

The invention discloses an LED (light-emitting diode) advertising lamp box light source based on a 220V AC (alternating current) power supply, mainly solving the problem that the existing LED advertising lamp box light source can not be directly connected with an external 220V AC power supply. The LED advertising lamp box light source based on a 220V AC power supply is characterized by comprising an LED advertising lamp box power supply and a PVC (polyvinyl chloride) shell for encapsulating the LED advertising lamp box power supply; the LED advertising lamp box power supply comprises an aluminum-based circuit board and a power supply circuit which is arranged on the aluminum-based circuit board and directly connected with a 220V AC power supply through a connector; and the power supply circuit comprises a piezoresistor R1, a rectifier D1 and a current regulative diode D2, the piezoresistor R1, the rectifier D1 and the current regulative diode D2 form a circuit with an LED and an external 220V AC power supply, and a electrolytic capacitor C1 connected in parallel with an LED is arranged in the circuit. Through the scheme, the purpose of directly connecting an external 220V power supply is achieved, the problem of voltage attenuation is avoided, the waterproof effect is guaranteed, and the LED (light-emitting diode) advertising lamp box light source has a high practical value and a high popularization value.
Owner:BLUEVIEW ELEC OPTIC TECH CO LTD

Temperature-sensing fire detector and fire monitoring method

PendingCN110796820AImplement extensionsSusceptible to electromagnetic interferenceFire alarm electric actuationFire detectorProcessing element
The invention provides a temperature-sensing fire detector and a fire monitoring method. The temperature-sensing fire detector comprises a processing unit and a plurality of detection units. The detection units are used for contact type temperature sensing and/or non-contact type temperature sensing. The detection units directly connected with the processing unit are direct detection units, the detection units which are not directly connected with the processing unit are indirect detection units, the processing unit is connected with the plurality of direct detection units to form a star-shaped structure by taking the processing unit as the center, or the direct detection units and/or the indirect detection units are connected with the plurality of indirect detection units; each detectionunit is provided with an independent number which can be identified by the processing unit; and the processing unit is used for carrying out fire monitoring according to signals transmitted by the detection units and positioning fire occurrence positions according to the independent numbers. In this way, on the condition that the using amount of the detection units is saved as much as possible, wide-range fire monitoring and alarming can be effectively achieved, the engineering equipment cost can be reduced, and the fire occurrence position can be located in time.
Owner:WUXI SHENGMIN SENSING TECH

Integrated electric actuator for unmanned aerial vehicle

The invention discloses an integrated electric actuator for an unmanned aerial vehicle, which is specifically applied to the field of control surface control for unmanned aerial vehicles. According to the scheme, a brushless direct-current motor is used as a power source, and due to the scheme of serially connecting the brushless direct-current motor, a planetary reducer and a hollow angular displacement sensor, the actuator is compact in structure, and the spatial dimensions thereof are reduced, the working life thereof is prolonged, and the reliability thereof is improved; a shell of the actuator adopts a sealed structure design, and is high in dustproof and waterproof capacities, and adaptive to bad working environments; a control driver adopts the control strategy of a position and two-stage current limiting, a current-limiting ring is mainly used for limiting an excessive current occurring in a system under abnormal conditions, and protecting the safety of the electric actuator and the unmanned aerial vehicle; and with regard to a square-wave position angle instruction, real-time acquisition for the angle instruction is realized by means of interrupt capture, and the accuracy of acquisition for the angle instruction is improved by adopting the control strategy of angle amplitude-limiting filtering and instruction compensation, therefore, the accuracy of the flight attitude of the unmanned aerial vehicle can be greatly improved, and can achieve 0.1 degrees.
Owner:BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS

Novel LED fishing lamp

The invention relates to a novel LED fishing lamp. An existing fishing lamp is difficult to operate collectively and breaks easily, and broken residues threaten human health and pollute environment. The novel LED fishing lamp is formed by a drive part, a light source part, a heat-dissipating part and a fixing piece part. The drive part comprises a drive circuit board and a signal transmitting system. The light source part comprises an LED luminous body, a reflection cover, a lens, a lens support, a lens waterproof pad, a lens waterproof enhancing pad and an angle pad block. The heat-dissipating part comprises a heat-dissipating body, an end cover and an end cover waterproof pad. The fixing part comprises a fixing plate, a cover plate, an installing support, an installing base and a cover plate waterproof pad. A split type combination is adopted in the installing process, and the light source part is installed on the surface of the heat-dissipating body. An installing base is clamped into a slide groove of the side face of the fixing plate, and the installing base and the installing support are fixed on the fixing plate internally provided with the drive circuit board through screws. The cover plate and the end cover are fixed on the heat-dissipating body through the screws and the waterproof pads. The novel fishing lamp is simple and easy to assemble and disassemble, safe, waterproof, long in service life and beneficial for popularization, and saves energy.
Owner:HUIZHOU WAI CHI ELECTRONICS CO LTD

Smart home engineering box with good heat dissipation effect

The invention discloses a smart home engineering box with good heat dissipation effect. The smart home engineering box comprises an engineering box, wherein the bottom of the inner cavity of the engineering box is fixedly connected with a distribution component through a fixed plate; the top of the inner cavity of the engineering box is rotatably connected with a worm through a bearing; two sidesof the bottom surface of the worm are fixedly connected with first connecting plates respectively; the bottoms of the two first connecting plates are fixedly connected with support rods; a second connecting plate is fixedly connected between the two support rods; the bottom of the second connecting plate is fixedly connected with cooling fins; and the back of the engineering box is fixedly connected with a first fixed block. The invention relates to the technical field of smart home. According to the smart home engineering box with good heat dissipation effect, through the engaged effect of aworm and a gear, the cooing fins move to realize cooling for the distribution component inside the engineering box, an excellent cooling effect can be reached, normal service life of the distributioncomponent is guaranteed, and the smart home engineering box has high practicability and excellent economic benefit.
Owner:合肥吴亦科技有限公司

LED (light-emitting diode) advertising lamp box light source based on 220V AC (alternating current) power supply

The invention discloses an LED (light-emitting diode) advertising lamp box light source based on a 220V AC (alternating current) power supply, mainly solving the problem that the existing LED advertising lamp box light source can not be directly connected with an external 220V AC power supply. The LED advertising lamp box light source based on a 220V AC power supply is characterized by comprising an LED advertising lamp box power supply and a PVC (polyvinyl chloride) shell for encapsulating the LED advertising lamp box power supply; the LED advertising lamp box power supply comprises an aluminum-based circuit board and a power supply circuit which is arranged on the aluminum-based circuit board and directly connected with a 220V AC power supply through a connector; and the power supply circuit comprises a piezoresistor R1, a rectifier D1 and a current regulative diode D2, the piezoresistor R1, the rectifier D1 and the current regulative diode D2 form a circuit with an LED and an external 220V AC power supply, and a electrolytic capacitor C1 connected in parallel with an LED is arranged in the circuit. Through the scheme, the purpose of directly connecting an external 220V power supply is achieved, the problem of voltage attenuation is avoided, the waterproof effect is guaranteed, and the LED (light-emitting diode) advertising lamp box light source has a high practical value and a high popularization value.
Owner:BLUEVIEW ELEC OPTIC TECH CO LTD

Waterproof and dustproof bearing block

The invention discloses a waterproof and dustproof bearing block. The waterproof and dustproof bearing block comprises a base; a first base body and a second base body are arranged above the base; thebase, the first base body and the second base body are matched with one another to form a bearing cavity; a buffer body is arranged in the bearing cavity; a bearing sleeve is arranged in the buffer body; the bearing sleeve is internally provided with a bearing hole; positioning blocks are arranged at the positions, located under the first base body and the second base body respectively, of the upper end of the base; the lower end of the first baset body and the lower end of the second base body are provided with positioning grooves; guide columns are arranged at the positions, at the inner sides of the positioning blocks, of the lower ends of the first base body and the second base body; the positions, right below the guide columns, of the upper surface of the base are provided with guidegrooves; compression springs are arranged in the guide grooves; a sealing plate is arranged on the same side of the first base body and the second base body; a sealing ring is arranged between the sealing plate and the bearing sleeve; and the sealing plate is fixedly connected to the first base body and the second base body through self-locking bolts. According to the waterproof and dustproof bearing block, the stable working environment can be provided for a bearing, and the waterproof and dustproof effects can be achieved.
Owner:响水县瑞丰重型轴承座制造有限公司

Terminal front cover assembly and terminal

A terminal front cover assembly and a terminal, including a protective frame, a glass cover plate and waterproof glue, the protective frame includes a storage cavity, the storage cavity includes a first cavity wall, the first cavity wall includes a first part and a second part, and the glass cover part Accommodated in the storage cavity, the glass cover plate includes an upper surface and a side surface connected to the upper surface, the side surface includes a first connection surface and a second connection surface connected to the first connection surface, and the first connection surface is closely attached to the first part There is a first gap between the second connection surface and the second part, and the waterproof glue is arranged on the second connection surface to fill the first gap. The terminal front cover assembly and the terminal provided by the present invention divide the side of the glass cover plate into the first connection surface and the second connection surface, so that the first connection surface and the first part are closely attached, thereby preventing glue overflow during gluing ; There is a first gap between the second connection surface and the second part, and the waterproof glue is set on the second connection surface, so that there is enough space for glue to solve the problem of no extra space for glue.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD

Sensor

The invention discloses a sensor. The sensor comprises a sensor probe, a connecting cable and an electric connector, the sensor probe comprises a sensor shell, a circuit board, a pressing cover, a pressing cap, a pressing ring and a sealing sleeve, the pressing cover, the pressing cap, the pressing ring and the sealing sleeve are each provided with a through hole for the connecting cable to penetrate through, and the outer side of the connecting cable is sequentially sleeved with the sealing sleeve, the pressing ring, the pressing cap and the pressing cover from inside to outside. The circuit board is installed in an inner cavity of the sensor shell. The outer surface of the first end of the pressing cover is connected with the inner wall of the top of the sensor shell in a matched mode. When one end of the connecting cable is connected with the circuit board of the inner cavity of the sensor shell, the inner wall of the second end of the pressing cover is matched with the outer wall of the pressing cap, the pressing ring can be axially pressed, the sealing sleeve can be axially pressed through the pressing ring, and therefore the connecting cable is clamped, and the waterproof and dustproof effects are achieved. Compared with the prior art, a sensor connecting cable can be clamped to achieve waterproof and dustproof effects, and the structure of the sensor is easy to miniaturize.
Owner:TANGZHI SCI & TECH HUNAN DEV CO LTD

A new type of led fishing light

The invention relates to a novel LED fishing lamp. An existing fishing lamp is difficult to operate collectively and breaks easily, and broken residues threaten human health and pollute environment. The novel LED fishing lamp is formed by a drive part, a light source part, a heat-dissipating part and a fixing piece part. The drive part comprises a drive circuit board and a signal transmitting system. The light source part comprises an LED luminous body, a reflection cover, a lens, a lens support, a lens waterproof pad, a lens waterproof enhancing pad and an angle pad block. The heat-dissipating part comprises a heat-dissipating body, an end cover and an end cover waterproof pad. The fixing part comprises a fixing plate, a cover plate, an installing support, an installing base and a cover plate waterproof pad. A split type combination is adopted in the installing process, and the light source part is installed on the surface of the heat-dissipating body. An installing base is clamped into a slide groove of the side face of the fixing plate, and the installing base and the installing support are fixed on the fixing plate internally provided with the drive circuit board through screws. The cover plate and the end cover are fixed on the heat-dissipating body through the screws and the waterproof pads. The novel fishing lamp is simple and easy to assemble and disassemble, safe, waterproof, long in service life and beneficial for popularization, and saves energy.
Owner:HUIZHOU WAI CHI ELECTRONICS CO LTD
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