152 results about "Light pillar" patented technology

The utility model relates to the technical field of LED colorful street lamps, in particular to an LED colorful street lamp convenient to maintain, which comprises a main body, an assembly hole is formed in the front surface of the main body, the right side of the main body is fixedly connected with two first connecting wires, the right side of each first connecting wire is fixedly connected with a first connector, the number of the first connecting wires is two, and the right side of each first connector is fixedly connected with a second connector. According to the LED lamp, the lamp holder, the light guide column upper cover, the lamp bead PCB and the like are arranged, the lamp bead PCB is clamped between the light guide column and the light guide column upper cover to form an independently detachable structure, and when the lamp bead PCB is damaged, the light guide column can be pulled, so that the light guide column upper cover and the lamp holder are in a clamped state; when the LED lamp is connected in series, the light guide column can be pulled out of the lamp holder, the light guide column upper cover can be opened to replace the lamp bead PCB, the lamp bead PCB can be conveniently and rapidly disassembled, meanwhile, when the lamp bead PCB is disassembled and replaced, use of the whole LED lamp connected in series is not affected, and the problem that after the lamp bead PCB is damaged, the whole LED lamp needs to be replaced, and waste is caused is solved.

This utility model discloses a rotary switch with a light guide structure, comprising a switch body and a light guide structure. The light guide structure includes a housing that is fitted into a mounting hole on the front panel of the switch body. The front end of the housing has a lamp wick mounting slot, into which a lamp wick mounting plate is installed. The lamp wick mounting plate is located behind the mounting hole, and three lamp wicks are mounted on its front side. A light guide base is located on the front side of the mounting hole, and a light guide post is mounted on the light guide base. The end of the light guide post has three cylindrical light-entry channels located behind the mounting hole of the switch body, with the ends of the light-entry channels close to the three lamp wicks. Multiple hollowed-out elliptical holes are provided inside the light guide post. The front end of the light guide post extends out of the mounting hole, and a light-transmitting plate is fixed to the front end of the light guide post. This utility model eliminates the need for high-power LEDs, provides high brightness regardless of distance, and offers a greater display illumination effect.

The invention discloses a method for improving the light pillar depth of an operating shadowless lamp and a lamp panel structure. According to the method, by adjusting the included angle between the optical axis of each TIR lens unit and the central axis of a lamp panel, the circle center of a sub-light spot formed by each TIR lens unit at the preset working distance does not coincide with the central point of a target surgical field light spot, but is distributed on a virtual concentric circular ring with the central point as the circle center, and the target surgical field light spot is synthesized by splicing the multiple sub-light spots. The corresponding lamp panel structure comprises a lamp panel base body, a TIR lens unit array arranged along a plurality of concentric rings, a driving mechanism and a programmable controller. The limitation of a traditional concentric convergence mode is broken through, the light column depth of the operation shadowless lamp is remarkably improved, especially the light column depth of a minimum light spot mode, meanwhile, good illumination uniformity and a shadowless effect are kept, and the technical problems existing in the field for a long time are solved.

1. The name of the design product: high beam strengthening direct lighting system for vehicle. 2. The use of the design product: the strengthened LED auxiliary lamp designed for long-distance lighting, which greatly improves the active safety at night and in bad weather, and the extremely strong brightness and concentrated light column significantly improve the high beam illumination range and penetration. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The utility model provides an indicating lamp assembly and electrical equipment, which belongs to the technical field of electrical equipment parts, and comprises a panel, a light guide column, a mounting bracket and a light emitting assembly, the panel is provided with a front-back through light outlet hole. The light guide column is provided with a first light guide section and a second light guide section, the first light guide section extends in the vertical direction, the second light guide section is connected to the lower end of the first light guide section and extends forwards, and the second light guide section is inserted into the light outlet hole; the mounting bracket is erected above the second light guide section and is fixedly connected with the rear side surface of the panel; the light emitting assembly is arranged above the first light guide section and fixedly connected with the upper side of the installation support, an indication light source on the light emitting assembly is arranged right opposite to the first light guide section, and the upper side of the light emitting assembly is provided with a wiring port. The assembly, disassembly and maintenance operations between the light guide column, the mounting bracket, the light emitting assembly and the panel and the equipment main body are gradually changed, time and labor are saved, and the working efficiency is improved.

The utility model relates to the technical field of game handle charging seats, in particular to a luminous conical charging seat structure for charging a game handle. Comprising a bottom shell, a surface shell at the top of the bottom shell, an upper shell at the top of the surface shell, a light-emitting LED lamp panel in the bottom shell, a power supply input port on the light-emitting LED lamp panel, four clamping grooves around the surface shell, a charging connection port around the surface shell, and a charging connection port in the corresponding clamping groove. A light-emitting atmosphere lamp connected with the light-emitting LED lamp panel is arranged on the face shell, an upper shell support is arranged on the top of the face shell, four charging indicator lamp light guide columns connected with the charging connector are arranged on the top of the upper shell, and a touch key is arranged on the top of the upper shell. The utility model provides a luminous conical charging seat structure which is used for charging handles of new and old game hosts. The charging seat not only supports the function of charging for four at the same time, but also has a light-emitting function, can be used as a small night lamp, and greatly improves the use experience of a user.

The utility model relates to the technical field of magnetic shaft keys, in particular to a magnetic shaft key switch with a double-light-guide structure, which comprises a shell and a shaft core structure arranged in the shell in a lifting manner, a spring used for supporting the shaft core structure is arranged in the shell, the shaft core structure comprises a magnet, and the magnet is arranged in the shell. Light guide pieces penetrating through the shell are arranged on the two sides of the shaft core structure. According to the keyboard, the light guide pieces are arranged on the two sides of the keys in the penetrating mode, it is ensured that the key switches and the key caps on the key switches can be fully covered by lamplight, the uniformity and coordination of the lamplight are greatly improved, the lamplight effect of the keyboard is improved, and the use experience of a user is improved. Compared with a traditional single-side light guide structure, the double-light-guide-column structure remarkably enlarges the illumination range of the key, so that light is more uniform and harmonious.

The utility model relates to the technical field of LED lamps, and discloses a device with a water leakage alarm function, which comprises a mounting frame, a water cooling box is mounted in the mounting frame, a PCB (printed circuit board) is fixedly mounted on the end surface of one side, close to a light condensing column, of the water cooling box, LED lamp beads are arranged on the outer end surface of the PCB, and a connecting structure is arranged on the inner surface of the mounting frame; a tray is arranged below the mounting frame, a water leakage detection cable is arranged in the tray, a diffusion plate is arranged in the mounting frame, and the top end face of the mounting frame is connected with an increasing lens; an aviation connector is fixedly installed on the end face of one side of the water cooling box, and the outer sides of the LED lamp beads are connected with a light source controller. The device with the water leakage alarm function has the good water leakage alarm function, water leakage can be automatically detected, and the problems that most of existing detection light source water-cooling heat dissipation devices are not convenient to automatically cut off power supply of a detection light source when heat dissipation is poor, and it is difficult to protect the light source from being burnt out are solved.

The application provides a light shielding control system, method and device of a light shielding mechanism in an optical device, wherein the light shielding mechanism comprises a plurality of light shielding columns, each of which is controlled by a motor, the system comprises a trajectory planning module, a position determination module and a motor control module, the trajectory planning module is configured to determine at least one movement path of each light shielding column according to a current position of the light shielding column and a target position of the light shielding column; the position determination module is configured to detect an intermediate position of each light shielding column after the light shielding column moves one movement path; and the motor control module is configured to control the movement of each light shielding column according to the at least one movement path of the light shielding column and the intermediate position of the light shielding column after the light shielding column moves one movement path. The application avoids code waste, reduces the calculation time of the algorithm, and accurately controls the position of the light shielding mechanism.

The utility model belongs to the technical field of medical instruments, and particularly relates to a silica gel head auricular point probe with a positive point positioning function, which comprises a holding tube, a positioning head, a telescopic piece, an auricular point probe ball, a transparent silica gel sleeve, a lighting assembly, a rolling piece and the like. Wherein the telescopic piece is movably connected into the holding pipe and comprises a through pipe and a spring, the outer side of the through pipe is fixedly connected with a baffle disc, one end of the spring abuts against the side face of the baffle disc, and one end of the through pipe is inserted into the hole probing ball and sleeved with a transparent silicon rubber sleeve; the lighting assembly comprises a lighting bin and a lamp body, and light is transmitted to the hole detection ball through a light guide column; the top of the holding pipe is provided with a rolling piece, and convex particles are uniformly distributed outside; by arranging the telescopic piece and the spring, ear injury caused by overlarge pressure in the acupoint detection process is avoided, the accuracy of acupoint detection is ensured through the lighting system, the massage function is added through the rolling piece, the auricular point can be accurately detected, effective stimulation can be provided, and the problems that positioning is inaccurate, pressure control is improper, positive point recognition is difficult and the massage function is single are solved.

The invention relates to an automobile starry sky roof and an automobile. The automobile starry sky roof comprises an interior ceiling, a plurality of light guide columns arranged on the interior ceiling, a mounting keel arranged on the upper side of the interior ceiling and a plurality of light emitting modules detachably mounted on the mounting keel. A plurality of preformed holes which penetrate through the inner surface and the outer surface and are used for arranging the light guide columns one by one are formed in the interior ceiling; the light-emitting module comprises a mounting support, a light-emitting part arranged on the mounting support and a plurality of light guide parts arranged on the mounting support and used for guiding light to the light guide column. A mounting cavity for arranging the light-emitting part and the light guide part is formed in the mounting support; the side, facing the interior ceiling, of the mounting support is provided with a plurality of arrangement holes used for arranging the light guide parts one by one. The installation method has the effect of improving the problems that the installation efficiency of the automotive interior simulation starry sky roof is low and the later maintenance difficulty is large.

The application relates to the technical field of bridge construction, in particular to a laser projection assembly which comprises a mounting frame and two bridge towers arranged in parallel, the mounting frame is arranged on the upper part of the inner side of one of the bridge towers through bolts; and laser projection lamps are connected through a plurality of supports, the laser projection lamps are arranged in a rectangular array in the mounting frame, a light guide cover is fixed to the side of the mounting frame away from the bridge tower, the inside of the mounting frame is separated from the outside through the light guide cover; the laser projection lamps are connected with a control box through power lines, and the control box is electrically connected with a power box. The light emitted by the laser forms a light column at night, the light column is emitted from one tower bridge of the bridge body to the other tower bridge, so that a light column is formed between the two tower bridges, the light column can change the problem that the stereoscopic sense is lacked due to the absence of cross beams, and the stereoscopic sense of the bridge body at night is improved.

A fountain lamp with a disinfection device includes a shell, a lighting component, and a pumping assembly. The shell is provided with a closed floating cavity in an upper part and a water outlet channel passing through the floating cavity. The water outlet channel is provided with a water spray hole at an upper end, and the shell is provided with a disinfecting cavity at a lower part and a first through hole at the lower part. The disinfecting chamber is for holding the disinfecting substance and immersing it in the water, and the first through hole is for allowing water to pass through. The lighting component is configured for projecting light to form a column of light. The pump component is for pumping water through the water outlet channel to the water spray hole to form a column of water.

The utility model discloses a combined LED courtyard lamp, including toughened glass lamp shade, lens, LED aluminum substrate, driving power supply, upper cover and fixed base, the lens is along the circumferential direction interval and is set on the upper end wall of toughened glass lamp shade, the LED aluminum substrate is set respectively in the upper end of lens, the lower end wall of LED aluminum substrate is equipped with a plurality of patch type LED lamp pearl, be equipped with a plurality of spotlight column in the lens, the upper end of spotlight column is recessed respectively one accommodation groove, patch type LED lamp pearl is embedded respectively in the accommodation groove, driving power supply is set in the middle of the upper end wall of toughened glass lamp shade, and driving power supply is electrically connected with patch type LED lamp pearl, and the upper cover is detachably covered in the upper end of toughened glass lamp shade through screw, and the fixed base is convex and is set in the middle of the lower end wall of toughened glass lamp shade. The technical scheme of the utility model can make the range of light irradiation wider, and the light effect is better, and the heat dissipation effect is good, and is convenient to dismount and install, and the practicality is strong.

The invention discloses a medical material air-drop box for field first aid, and belongs to the technical field of medical air-drop boxes. The medical air-drop box comprises a medical air-drop box body, and supporting legs are arranged on the two sides of the body and connected with the side walls of the body through buffering assemblies. A smoke chamber and a colored ribbon storage box are fixed at the top of the body and are respectively provided with a smoke outlet and a colored ribbon outlet, and a smoke release component with a laser lamp and a showing component are correspondingly arranged in the smoke chamber and the colored ribbon storage box. The air-drop box is characterized in that the air-drop box is provided with a smoke, colored ribbon and laser triple positioning system; a heating rod in the smoke box vaporizes smoke oil to generate high-concentration smoke, and the high-concentration smoke is accelerated and guided out by a second fan blade to form a remote visible smoke column; a first fan blade in the colored ribbon storage box blows out a colored ribbon to form a dynamic identifier; the laser lamp penetrates through the smoke to form a high-brightness light column. The three parts cooperate with each other, are positioned by smoke and colored ribbons in the daytime, are positioned by laser and smoke at night, and are positioned by light pillar penetration in a low-visibility environment, so that search time can be shortened for rescue workers, and the rescue workers are prevented from missing first-aid golden time.

The light guide column comprises a plate-shaped light guide column body, a groove is formed in the front face of the light guide column body, the groove is close to one end of the light guide column body in the length direction and used for containing an indicator lamp body, and a protruding part is arranged at the other end of the light guide column body in the length direction. The protruding parts are arranged in the width direction of the light guide column body. The light guide column has the advantages that the light guide column body is plate-shaped, the front face of the light guide column body is provided with the groove, and the indicator light body is located in the groove after installation, so that the overall occupied space is smaller after installation, and the light guide column can be suitable for thin products; the other end of the light guide column body in the length direction is provided with a protruding part, so that the light guide column body is conveniently positioned and installed with the shell and transmits light of the indicator light out of the shell; the whole light guide column body is simple in structure, low in production and manufacturing cost and convenient to assemble.

The application belongs to the technical field of surveying and mapping devices, in particular to a field geological profile surveying and mapping support device, which comprises a mounting disc, a plurality of connecting rods are uniformly and fixedly installed at the bottom of the mounting disc, a base plate is fixedly installed between the plurality of connecting rods, the base plate is arranged in parallel with the mounting disc, a universal shaft is fixedly installed at the bottom of the base plate, a detection plate is fixedly installed at the bottom of the universal shaft, and a plurality of laser lamps are uniformly and fixedly installed on the inner wall of the detection plate. The application utilizes the mode that laser light emitted by the laser lamp passes through the through hole to determine the level, the laser light column is clear and has strong directivity, can be clearly visible in various light environments, is not affected by the above environmental factors, and the staff can intuitively and clearly observe the light condition, so as to quickly and accurately determine whether the device is in a horizontal state. When the light emitted by the laser lamp can pass through the through hole vertically, it can be concluded that the mounting disc is in a horizontal state.

The utility model discloses a charger indicating lamp structure with a button function, which comprises a surface shell, a light guide column and a lamp panel, and the surface shell is provided with a light hole; the light guide column is arranged in the face shell, and one face of the light guide column is exposed out of the light hole. The lamp panel is arranged below the light guide column, a pressing part is arranged on the face, adjacent to the lamp panel, of the light guide column, and a microswitch is arranged at the position, corresponding to the pressing part, of the lamp panel. According to the structure of the utility model, the light guide column has light conduction and pressure conduction functions at the same time, operation feedback and state display are integrated by using a single hole site, the assembly process can be simplified, and the structural reliability can be improved.

A method and an apparatus for generating reflective dark field (RDF) illumination for a microscope are provided. The apparatus may include: one or more RDF illumination light sources positioned to emit light beams substantially orthogonal to a microscope optical axis; and multiple beam directing assemblies positioned at substantially identical optical axis distances from an RDF port of a bright field / dark field (BD) objective lens of the microscope. The multiple beam directing assemblies may be positioned to redirect emitted light received from the RDF illumination light sources into the RDF port to form a hollow light cylinder around the microscope optical axis, wherein the hollow light cylinder is diverted towards a microscope field of view (FOV) by an internal light diverting element (ILDE) of the microscope positioned within the RDF port.

The utility model provides a light guide column and a lamp, and relates to the technical field of lighting equipment. The light guide column comprises a columnar structure, the columnar structure is made of a transparent material, and the interior of the columnar structure comprises a first annular area and a second annular area which are sequentially and alternately arranged from the center of the columnar structure to the outer side of the columnar structure; the number of the first annular areas is two or more, and bubbles are arranged in the first annular areas.

The utility model belongs to the technical field of charging equipment, and particularly discloses a charging pile which comprises a pile body, an indicating lamp and a light guide column. A light-transmitting part is arranged on the surface of the pile body; the indicating lamp and the light guide column are arranged in the pile body; two ends of the light guide column are respectively a light receiving end and a light emitting end; the light emitting end is provided with a light emitting surface, the light receiving end is provided with a light receiving surface, and the light receiving surface faces the indicator lamp; the indicating lamp is used for emitting light to the light receiving face so that the light can be emitted to the light transmitting part along the light guide column. The shape of the light guide column is arranged according to a specific structure, so that if light emitted by the indicator lamp does not face the light transmitting part, the light of the indicator lamp can be transmitted to the light transmitting part, namely, the arrangement position of the indicator lamp is not limited by the position of the light transmitting part, and a circuit board with LED lamp beads does not need to be arranged below the light transmitting part of the charging pile; and a waterproof structure does not need to be made for the circuit board with the LED lamp beads, so that the production cost of the charging pile can be reduced, and the economic benefit is improved.

The utility model discloses a cooling fan and a switch, which can realize fault reminding. The cooling fan comprises a fan body, a circuit board, a net rack and a light guide column, the fan body is provided with a front side and a rear side which are opposite, the net rack is installed on the fan body and arranged on the front side of the fan body, the circuit board is arranged on the rear side of the fan body, and the circuit board is provided with a state display lamp used for representing whether the fan body operates normally or not. The light guide column is installed on the fan body, the first end of the light guide column extends to the state display lamp, the second end of the light guide column penetrates out of the net frame, and light emitted by the state display lamp is led out to the second end of the light guide column through the first end of the light guide column.

The utility model belongs to the technical field of water cups, and particularly discloses a double-layer water cup with a built-in acousto-optic function, which comprises an outer-layer shell, an inner-layer container body is arranged on the inner side of the outer-layer shell, the outer-layer shell is detachably connected with the inner-layer container body, and a light-emitting component is arranged in the outer-layer shell; the light-emitting assembly comprises a light-emitting source, the light-emitting source is arranged at the bottom of the outer-layer shell, one end of the light-emitting source is connected with a plurality of light guide columns, the tops of the light guide columns are connected with acrylic light guide plates, and the outer wall of each acrylic light guide plate is provided with shading aluminum foil. According to the utility model, through the combined design that the bottom luminous source is matched with the light guide column and the acrylic light guide plate, the light is uniformly conducted to the hollow pattern area of the outer-layer shell by utilizing a total reflection principle, so that the problems of local over-brightness and dim edge caused by light dispersion of the traditional SMD LED are avoided; the shading aluminum foil further restrains the light path to ensure complete shadow coverage and consistent brightness.

The present invention relates to a lamp with an extended LED source for optimizing shadow rendering, comprising lamp beads, a substrate, light-guiding columns, and a limiting sleeve, wherein the lamp beads are multi-color LED lamp beads. The plurality of lamp beads are arranged on the substrate in an orderly manner at intervals. In the present invention, according to the lamp with an extended LED source for optimizing shadow rendering, the light-guiding columns comprise light incident surfaces and light exit surfaces, the light incident surfaces of the plurality of light-guiding columns respectively abutting against the lamp beads, the light exit surfaces of the plurality of light-guiding columns being closely arranged and connected, and intervals being formed between the light exit surfaces; the limiting sleeve is formed with a plurality of first limiting holes, and the first limiting holes are respectively sleeved on the light-guiding columns between the light incident surfaces and the light exit surfaces, such that when the light exit surfaces have a regular geometrical shape, and the side length of the regular geometrical shape is a, and the distance of the intervals is d, the relationship d≤0.5a is satisfied, and the phenomenon of overlapping shadows with mixed lighting is ameliorated.

The invention belongs to the technical field of light source system detection equipment, and particularly discloses a device and a method for measuring the light output performance of an ultraviolet light source system. The device for measuring the light output performance of the ultraviolet light source system comprises a test board, a light outlet column, a cover plate, a three-axis displacement table and an ultraviolet radiometer, the testboard is connected with a light source mounting chamber of the light source system, the top of the light source mounting chamber is provided with a light outlet, the middle of the light outlet column is provided with a light passing channel, and the cover plate is provided with a test light port; the three-axis displacement table is arranged at the test light port, and the ultraviolet radiometer is provided with a probe. The three-axis displacement table can move a probe of the ultraviolet radiometer, so that the ultraviolet radiometer can detect the irradiance of a plurality of detection points, and the irradiance uniformity in the X-axis direction, the irradiance uniformity in the Y-axis direction and the average light output irradiance of the mercury lamp light source system can be obtained through calculation. The performance of the mercury lamp and the light source system thereof can be better tested and verified, the debugging and testing time is shortened, and the production efficiency is improved.

The utility model relates to the technical field of light sources, in particular to a point light source, which comprises a lamp holder and a lamp holder, a plurality of groups of light source holes are arranged in the lamp holder, light guide columns are arranged in the light source holes, light source components are arranged at the ends of the light guide columns, a connecting sleeve is arranged between the lamp holder and the lamp holder, and a barb is arranged at one end of the connecting sleeve and clamped at the end of the lamp holder. An annular clamping groove is formed in the connecting position of the lamp holder and the barb, and internal threads are arranged at the other end of the connecting sleeve and are in threaded connection with the lamp cap. The multiple sets of light source holes and light source assemblies are arranged in the same lamp holder, the occupied area is small, installation is convenient, and light beams cannot deviate from one another.

The utility model discloses a controller, which comprises a shell, a light guide concave part is formed on the front surface of the shell, a plurality of cylinder parts are formed on the inner side wall, corresponding to the light guide concave part, of the front surface, and the cylinder parts are communicated with the light guide concave part; the main control board is arranged in the shell, and the main control board is provided with a plurality of indicating lamps used for giving out indications; the light guide assembly comprises a plurality of light guide columns, and when the light guide assembly is installed on the light guide concave part, all the light guide columns penetrate through all the cylinder parts to stretch out and directly face all the indicating lamps; the decorative plate is detachably installed on the front face of the shell and abuts against the light guide assembly in a pressing mode, a plurality of display areas are formed on the decorative plate, and the free end, away from the corresponding indicator lamp, of one light guide column extends into one display area and is used for guiding light emitted by the corresponding indicator lamp to the display area. According to the utility model, the aim of meeting different indication requirements can be fulfilled by only replacing the decorative plate without changing the structure of the shell.

The utility model provides a button switch assembly with electric quantity display, comprising a substrate, a button, a light guide module and a light shielding plate, the substrate is provided with a light touch switch and an indicating lamp group, the indicating lamp group comprises a plurality of first lamp beads which are successively arranged by taking the light touch switch as a circle center; the light guide module comprises a light guide ring, the lower end of the light guide ring is provided with conical light guide columns which are the same as the first lamp beads in number and correspond to the first lamp beads one to one, and the top face of the light guide ring serves as a light emitting face. The light shielding plate is in a circular ring shape and is coaxial with the light guide ring, the light shielding plate is installed on the light emitting face in an attached mode, the light shielding plate is provided with a plurality of light transmitting windows, and the light transmitting windows are sequentially arranged around the circle center. The button switch assembly with electric quantity display is compact in structure, small in installation space, high in light emitting uniformity and consistency, capable of annularly displaying electric quantity, good in display effect and visual effect, large in light emitting angle, easy to read and good in use experience.

The utility model provides a charger which comprises a shell and an indicating lamp assembly arranged in the shell, the indicating lamp assembly comprises a lamp panel provided with a plurality of LED lamps and a light guide piece arranged on the lamp panel, the shell is provided with a plurality of light holes corresponding to the LED lamps of the lamp panel one to one, the light guide piece is provided with a plurality of light guide columns corresponding to the LED lamps of the lamp panel one to one, and the light guide columns are arranged on the shell. The indicating lamp assembly further comprises a sealing piece which is arranged on the light guide piece, the sealing piece and the lamp panel are located on the two opposite sides of the light guide piece respectively, the sealing piece is clamped between the corresponding portion of the shell and the light guide piece, the sealing piece is provided with a plurality of penetrating holes in one-to-one correspondence with the light transmitting holes of the shell, and the light guide columns penetrate through the penetrating holes respectively and stretch into the corresponding light transmitting holes. The inner wall, located on the periphery of the penetrating hole, of the sealing piece tightly sleeves the periphery of the light guide column. The indicator light assembly of the charger is provided with the sealing element, and the sealing element is located between the light guide element and the shell, so that water vapor can be prevented from entering from the light hole and permeating from the gap around the light guide column of the light guide element to influence the lamp panel.