56results about How to "Avoid irreversible deformation" patented technology

Microelectromechanical system (MEMS) comprising:an active part (5) comprising an electromechanical device (28),at least one base (6) for fastening said microsystem on a support (8),at least one fastener (21, 21′) fastening said active part (5) to said at least one base (6) and allowing a displacement of said active part (5) relatively to said at least one base (6) along an axis (Z) more or less perpendicular to the plane of said support (8) when said microsystem is fastened onto said support (8), bumper elements (27, 27′, 37′) for limiting the amplitude of the displacements of said active part (5) relatively to said at least one base (6) along said perpendicular axis (Z).The active part (5) being capable of moving relatively to the base (6) to which it is fastened, it is isolated from any mechanical constraint that could be sustained by the base (6), in particular torsion or flexion due to it being fastened onto a support (8). On the other hand, since the movements of the active part (5) are limited by the bumper elements (27, 37, 27′, 37′), it can be guaranteed thanks to the invention that the fastener or fasteners (21, 21′) will not be stretched beyond their elasticity range, thus avoiding their irreversible deformation and / or their rupture.

Microelectromechanical system (MEMS) comprising: an active part (5) comprising an electromechanical device (28), at least one base (6) for fastening said microsystem on a support (8), at least one fastener (21, 21′) fastening said active part (5) to said at least one base (6) and allowing a displacement of said active part (5) relatively to said at least one base (6) along an axis (Z) more or less perpendicular to the plane of said support (8) when said microsystem is fastened onto said support (8), bumper elements (27, 27′, 37′) for limiting the amplitude of the displacements of said active part (5) relatively to said at least one base (6) along said perpendicular axis (Z). The active part (5) being capable of moving relatively to the base (6) to which it is fastened, it is isolated from any mechanical constraint that could be sustained by the base (6), in particular torsion or flexion due to it being fastened onto a support (8). On the other hand, since the movements of the active part (5) are limited by the bumper elements (27, 37, 27′, 37′), it can be guaranteed thanks to the invention that the fastener or fasteners (21, 21′) will not be stretched beyond their elasticity range, thus avoiding their irreversible deformation and / or their rupture.

A weighing pan carrier (47) for a balance with a weighing pan and with a weighing cell that includes a load-receiving portion (11) and a stationary portion (12) has an overload protection device against excessive vertically directed forces that is releasably engaged with the weighing pan carrier. The weighing pan carrier (47) is fastened to the load-receiving portion (11) of the weighing cell and has on the other hand a fixed connection to the weighing pan. The weighing pan carrier (47) has a torque safety feature, which is integrated in the overload protection device and provides protection against excessive forces acting tangentially on the weighing pan and / or on the weighing pan carrier (47) in a direction perpendicular to the direction of the weighing load.

The invention provides a block-to-stop transmission device; the block-to-stop transmission device comprises a drive chain wheel and a transmission chain wheel; the drive chain wheel and the transmission chain wheel are concurrently circled by an enclosed chain, so as to enable the drive chain wheel and the transmission chain wheel to be driven by the chain; a control device of the drive chain wheel is arranged in a never changed position with respect to the rotation axis of the drive chain wheel; a switch of the control device always directly or indirectly pushes against the chain via an elastic device, thus the position of the switch with respect to the control device can be changed when the chain is not wrapped on the drive chain wheel, or the portion of chain on the transmission chain wheel is loosened or tightened, thereby changing the work state of the switch. The control device of the block-to-stop transmission device is matched with the chain by using the elastic device and a micro switch, so as to conveniently and effectively identify whether the output end of the transmission mechanism is blocked, and timely control the drive chain wheel to stop the power output by controlling the triggering of the switch, thereby achieving the block-to-stop function; additionally, a certain motion process exists when the chain changes from the tightened position to the loosened limit position, thus the whole mechanism has a margin for sufficient buffering, so as to effectively prevent the mechanical parts from irreversible deformation caused by emergent forward braking of the mechanical parts.

The invention relates to the technical field of production lines, in particular to an automatic production line based on an intelligent industrial robot. The automatic production line comprises a production line body, wherein the production line body is equipped with a carrying mechanism; the carrying mechanism is equipped with an assembly clamping mechanism; the carrying mechanism comprises a conveying table; the right side part of the conveying table is equipped with a supporting post; the top end of the supporting post is equipped with a beam; a first movable device can be arranged on the beam in a left-right sliding mode; a carrying mechanism is arranged below the first movable device; the assembly clamping mechanism comprises a clamp body; the clamp body comprises a first clamp mounting plate, a baffle plate is arranged at one side of the top end surface of the clamp mounting plate, the middle part of the clamp mounting plate is downs sunken to form a mounting slot; a first clamping plate capable of sliding left and right is arranged in the mounting slot; and a second clamping plate capable of turning over is arranged at the inner side of the baffle plate. The automatic production line is simple in structure, is low in manufacturing cost, is good in stability in a carrying process, can automatically regulate according to different workpieces, guarantees assembly quality and improves assembly efficiency.

The invention discloses an expressway guardrail. The expressway guardrail comprises a square tube fixed on an upright post, a mounting groove, two rotating cavities and a connecting groove are formedon the stand column, and the rotating cavities and the connecting groove both communicate with the mounting groove. A first rotating shaft is rotatably connected between the two rotating cavities, animpact plate fixedly sleeving the first rotating shaft and is located in the mounting groove, a plurality of first springs are fixedly mounted between the mounting groove and the impact plate, and a push rod abuts against the side, close to the first springs, of the impact plate. The guardrail has the advantages that the impact plate is arranged rotatably, so that the horizontal thrust can be generated on the push rod during impact, the operation of the subsequent vibration reduction operation is facilitated, the borne impact force is better reduced, and meanwhile when the impact force does not cause the overall deformation and cannot be used, the guardrail can also repeatedly play a role in buffering and reducing the vibration.

The invention discloses a novel corrugated composite material and relates to the technical field of paper boards. The novel corrugated composite material comprises a corrugated composite sandwich layer, wherein the shape of the corrugated composite sandwich layer is of a wavy structure; reinforcing layers are respectively adhered and fixed on the upper surface and the lower surface of the corrugated composite sandwich layer; the reinforcing layers are adhered and fixed with grey-board base paper above the corrugated composite sandwich layer; the reinforcing layers are adhered and fixed with grey-bottom coating paper under the corrugated composite sandwich layer; hydrophobic coatings are respectively adhered and fixed on the upper surface of the grey-board base paper and the lower surface of the grey-bottom coating paper; composite paper cores are respectively and fixedly connected between the corrugated composite sandwich layer and the grey-board base paper and between the corrugated composite sandwich layer and the grey-bottom coating paper, and the plurality of composite paper cores are adhered and fixed in a two-two manner; a fixed strip is fixedly connected at the connecting position of the plurality of composite paper cores. The novel corrugated composite material disclosed by the invention has the beneficial effects that by a mutual adhesion structure of the grey-board base paper, the corrugated composite sandwich layer and the grey-bottom coating paper, the bending resistance of the corrugated paper board is enhanced; the novel corrugated composite material has the advantages of heat insulation and waterproof property.

The invention belongs to the technical field of medical instruments and mainly relates to a lumbar disc herniation correction device which comprises an elastic gasket. Each of two ends of the elasticgasket is connected with a pull rod, the outer wall of each pull rod is axially provided with a clamping groove, the elastic gasket is connected in the clamping grooves in a clamped manner, the pull rod at the left end is connected with a first adjusting plate through a connecting member, the pull rod at the right end is connected with a second adjusting plate through a connecting member, a firstguide rod and a threaded rod are arranged at the right end of the first adjusting plate, an L-shaped mounting groove is formed at a position, of a second blind hole, at the top end of the second adjusting plate, a first bevel gear and a second bevel gear are arranged in the L-shaped mounting groove, an adjusting rotation shaft is connected on the first bevel gear, the second bevel gear is connected on the threaded rod in a threaded manner in the L-shaped mounting groove, and the first bevel gear and the second bevel gear are meshed. The lumbar disc herniation correction device can adjust radian and height of the elastic gasket in a stepless manner to adapt to physiological bending degree of waists of different populations and is convenient to carry and good in correction effect.

The invention discloses a lubricant powder drying device support which comprises an installation platform for fixing a lubricant powder drying device and supporting columns for supporting the installation platform. The supporting columns are fixedly connected with a lower end surface of the installation platform; the center place of an upper end surface of the installation platform is provided with a hole; the outer circumference of the hole is provided with a plurality of buffer members; and the outer circumference of the buffer members is fixedly provided a plurality of limitation blocks. The buffer members are springs; the number of the springs is six, and the six springs form a circular array; and the circular array is coaxial with the hole. The center of each spring is provided with a guiding rod for providing a guiding function for spring telescoping direction; and the height of the guiding rod is smaller than the height of the spring. The beneficial effects are that the lubricant powder drying device support is provided with the buffer members to reduce the shaking degree of the lubricant powder drying device, so that a noise reduction purpose is achieved; and the installation platform is provided with the limitation blocks so as to limit the position of the lubricant powder drying device.

The invention provides a detection valve, a nitrogen charging detection assembly and air conditioning equipment. The detection valve comprises a valve body, a main valve core, an indication rod and adriving part; a nozzle flow channel and an output port are formed in the valve body, and an inner cavity of the valve body communicates with the nozzle flow channel and the output port; the main valvecore is arranged at the position of the nozzle flow channel, and is used for controlling opening and closing of the nozzle flow channel; one of the main valve core and the valve body is provided witha penetrating channel through which the indication rod penetrates; the driving part is connected with the indication rod, and is used for driving the indication rod to move along the channel according to pressure in the inner cavity of the valve body; and when the pressure in the inner cavity of the valve body reaches the preset pressure, the indication rod is driven until at least a part of theindication rod extends out of the channel for indication. According to the detection valve, both the opening and closing control function and the internal pressure indicating function are achieved, inthis way, a pipe nut part with an indicating function in the prior art can be replaced by a standard plug element or a standard pipe nut, so that the interchangeability is high; and the degree of product standardization is improved, and the product cost is reduced.

The invention discloses a machine tool integrating the functions of ice breaking, snow removing and ground sweeping. The machine tool integrating the functions of ice breaking, snow removing and ground sweeping comprises a rotary shaft, a rotating frame, a flat-shaped flexible connecting part, a crutch-shaped ice breaking knife and a planar flat-shaped elastic sweeper, wherein the cross section of the rotary shaft is in an arbitrary shape, the rotating frame is fixedly installed on the rotary shaft in a mode of surrounding the rotary shaft, the flat-shaped flexible connecting part is in a plane shape due to the fact that the flat-shaped flexible connecting part is restrained by the self-elastic stress when not bearing external force, and the planar flat-shaped elastic sweeper is composed of elastic brush wire sets. According to the machine tool integrating the functions of ice breaking, snow removing and ground sweeping, the structural design is more scientific, reasonable and excellent, the functions of ice breaking and effective removing of ice, ripe snow or hard snow on the ground in the snowfall season are achieved, and the functions of floor sweeping and efficient sweeping of non-ice-and-snow abandoned waste on the ground in the non-snowfall season are further achieved; and the machine tool is especially suitable for sweeping the various smooth grounds covered by the ice, the ripe snow or the hard snow in the snowfall season, and more suitable for being configured on large, medium and small traveling ice and snow removing machines.

The invention provides an elastic piece, a nonlinear force generation structure and an electromagnetic valve, and relates to the technical field of electromagnetic valves. The elastic piece is provided with a first through hole, and a kidney-shaped hole is formed along the edge of the first through hole. The nonlinear force generating structure comprises the elastic sheet and further comprises a movable iron core, wherein the elastic sheet is arranged on the movable iron core in a sleeving mode through the first through hole; the limiting piece is provided with a limiting surface, and the limiting surface abuts against the elastic piece; after the movable iron core is subjected to electromagnetic force, the movable iron core can drive the elastic piece to deform along the side close to the limiting face till the electromagnetic force borne by the movable iron core is equal to the elastic force generated by deformation of the elastic piece. The electromagnetic valve comprises the nonlinear force generating structure. As the limiting piece is provided with the limiting surface, the elastic piece is limited during deformation, and the elastic force generated during deformation of the elastic piece and the displacement amount of the movable iron core are in a nonlinear relationship.

The invention relates to the field of cooker coating layers, in particular to a method for preparing a durable non-stick cooker coating layer. A cooker coating is prepared adding, in parts by weight,100 parts of modified polytetrafluoroethylene, 30-50 parts of polyimide resin, 2-4 parts of an aluminate coupling agent, 2-6 parts of silicone rubber powder, 2-5 parts of titanium dioxide, 6-10 partsof boron nitride and 3.2-5.6 parts of a coalescing agent, conducting heating to 340-440 DEG C and conducting stirring at a high speed for 5-10 hours. Then, the cooker coating is put into an electrostatic spraying machine to be sprayed on the inner surface of a cooker, and standing is carried out at 180-260 DEG C for 20-50 minutes, so that the non-stick cooker coating layer is obtained.

The invention relates to a bike saddle and belongs to the technical field of bikes. The bike saddle comprises a saddle cover, an elastic cushion and a saddle-shaped bottom case connected with a bile.The saddle-shaped bottom case is sleeved with the saddle cover. The elastic cushion is arranged between the saddle-shaped bottom case and the saddle cover. The elastic cushion is provided with a reinforcement structure. Through the structure, the bike saddle provided by the invention has good comfortability and also has a certain strength and stiffness to deal with large acting force, so that theelastic cushion is protected against irreversible deformation or skewing towards one side when bearing large acting force generated from alternating motion of the hip and crotch of a user. Thus, the whole bike saddle has higher stability to ensure the safety of the user and is suitable for bike sports events.

The invention relates to an inclined wire papermaking apparatus, comprising a constant pressure pulp-distributing tank, a stainless steel pulp distributor, an inclined wire pulp flow box, a dewatering box, a breast roll, and a forming wire mesh. The constant pressure pulp-distributing tank comprises an upper tank body, a lower tank body, support legs and an orifice plate. The stainless steel pulp distributor comprises a pulp distributor body, and a plurality of pipes made of stainless steel are distributed on the pulp distributor body. The inclined wire pulp flow box comprises a box body, an upper lip component is movably arranged in the box body, the box body is of closed structure, the upper lip component comprises a rear upper lip plate and a front upper lip plate, the rear upper lip plate is rotationally connected with the front upper lip plate, a plurality of transverse beams are fixed on the box body, a first cylinder, a first turbine box, a second cylinder and a second turbine box are fixed on the transverse beams, and the dewatering box comprises a box body, a lower dewatering mesh, an upper dewatering mesh, a drain pipe and a pulp discharging pipe. The inclined wire papermaking apparatus has the advantages of reasonable parameter setting, good pulp flow uniformity and stability, and good forming effect.

The invention discloses a stripped and hollowed-out pattern forming process, relates to the garment processing technology, and aims at solving the problem of lacking a clothing forming process with rich layered pattern in the prior art. According to the technical scheme, the process is characterized by comprising the following steps: material preparation, fabric processing and hot-pressing pasting, tailored front-face colorized TPU adhesive film is pasted on the front of the fabric, a tailored base cloth is aligned to the TPU hot melt adhesive film on the back side of the fabric, and the basecloth is glued with the TPU hot melt adhesive film, the base is preheated, the fabric glued with the front-face colorized TPU adhesive film and the base cloth is placed on the heating base, and a lower pressure cylinder is controlled to push a lower pressure block to press the fabric to complete hot pressing. The stripped and hollowed-out pattern forming process realizes multi-level garment pattern forming processing on the premise of saving human resources and conforming to industrialized production, and has high clarity of the formed pattern.

The invention discloses a vulcanizing mold for double-ejection type demolding of an automobile ball head dust cover. The vulcanization mold comprises an upper mold, a middle mold and a lower mold, at least one first mounting hole is formed in the middle mold, a first core is movably mounted in the first mounting hole, two ends of the first core extend out of the first mounting hole, a first expansion part is arranged at one end of the first core, the other end is provided with a first clamping spring, a second mounting hole is formed in the first core, a second core is movably mounted in the second mounting hole, two ends of the second core extend out of the first core, a second expanding part is arranged at one end of the second core, a second clamping spring is arranged at the other end of the second core, a first placement hole is formed in the lower mold, a movable plate is further arranged between the middle mold and the lower mold, and the movable plate is provided with a second placement hole. The mold is simple in structure and high in practicability.

The invention provides a raking tooth of a Chinese water chestnut harvester for deep fields. The raking tooth comprises a first hard fixing part, a second hard fixing part, elastic flexible sleeves, and springs arranged in the elastic flexible sleeves. The communicated elastic flexible sleeves are arranged on the tops of the first hard fixing part and the second hard fixing part. The springs are arranged in the elastic flexible sleeves. The raking tooth is simple in structural design and convenient to install, clean and replace, the two adjacent hard fixing parts are provided with the elastic flexible sleeves on the basis of an existing raking tooth, the efficiency of Chinese water chestnut ploughing is greatly improved, the flexibility of the elastic flexible sleeves is improved through the springs arranged in the elastic flexible sleeves, irreversible deformation of the elastic flexible sleeves can be avoided, Chinese water chestnuts cannot be damaged in the ploughing process, and the service life is long.

The invention belongs to the technical field of film processing, and in particular relates to a wrinkle-removing device for polymer plastic films, which includes a first mechanism and a second mechanism sequentially fixed on a first fixed base along the traveling direction of the plastic film; the present invention The oblique straight line part at the upper end of the combination chute is used to remove pleats and protect the plastic film within an appropriate range of force; the arc-shaped part at the lower end of the combination chute ensures the resistance hem of the third roller and the telescopic rod, ensuring that the plastic The film tension does not continue to increase; eventually the plastic film does not undergo irreversible deformation.

A lens holder for holding a lens in a headlamp, and to a headlamp having such a lens holder, wherein the lens holder comprises a receptacle section for holding the lens and a mounting section, wherein the mounting section can be mounted in the headlamp by means of fasteners. The lens holder has an at least partially circumferential channel between the receptacle section and the mounting section.

The invention belongs to the technical field of film processing, and in particular relates to a wrinkle-removing device for plastic film, which includes a first mechanism, a second mechanism and a third mechanism which are sequentially fixed on a first fixed base along the movement direction of the plastic film; The high-frequency reciprocating extrusion and separation of the fourth roller and the fifth roller in the invention makes the wrinkles on the part of the plastic film between the fifth roller and the second roller effectively removed, while the fourth roller and the fifth roller After the roller is squeezed, the plastic film is separated instantly to relax the further tightened plastic film, avoiding the irreversible deformation of the plastic film caused by the long-term tension of the plastic film, and ensuring that the plastic film coming out of the wrinkle removal device is a qualified product. Minimize the defect rate of plastic film products, reduce the production cost of plastic film, and improve production efficiency.

The invention provides a 304 stainless steel roller which comprises a roller body. A hollow cavity is formed inside the roller body, a roller shaft penetrates through the roller body in the axial direction, the roller further comprises a plug, the plug is fixedly connected with the inner wall of the roller body and the outer wall of the roller shat, and the plug is prepared from gray pig iron. Theinvention further provides a machining method of the 304 stainless steel roller. The machining method comprises the following steps that 1, the roller body is prepared; 2, a stainless steel shaft matched with the roller is prepared; 3, a step table is prepared; 4, a matched sealing plate is cut out; 5, the plug is prepared through casting; 6, the end is sealed by the sealing plate; 7, the sealingplate is welded to the roller body; 8, the end face is corrected; and 9, the outer edge of the roller body is polished, and the 304 stainless steel roller is formed. According to the 304 stainless steel roller and the machining method of the 304 stainless steel roller, combining force and toughness of the welded position of the 304 stainless steel roller are improved, a weld joint is prevented from stripping from the roller, therefore, the strength of the roller is improved, and the service life of the roller is prolonged.

The invention discloses a tension-adjustable cloth packaging device based on the Internet of Things, which includes a support frame and a data management module. The data management module includes a data detection module and a data processing module. The real-time data information in the running process is detected, and the detection results are transmitted to the data processing module. The data processing module is used to process the received data information and control the device through the processing results. The support frame A fixed plate is fixedly installed on the top, and several sets of fixed connecting rods are installed through the left side of the fixed plate. The end bearings of several groups of the fixed connecting rods are connected to the drive shaft, and one end bearing of the fixed plate is connected to the rotating connecting rod. , the top of the fixing plate is connected with a support link, and the outer surface of the support link is connected with two sets of transmission shafts. The present invention has the characteristics of long service life and protection of the cloth.

The invention discloses a tension-adjustable cloth packaging device based on the Internet of Things, comprising a supporting frame and a data management module. The data management module comprises a data detection module and a data processing module, the data detection module is used for detecting real-time data information in the running process of the device and transmitting the detection result to the data processing module, the data processing module is used for processing received data information and controlling the device through the processing result, a fixed plate is fixedly installed on the top of the supporting frame, a plurality of sets of fixed connecting rods are installed on the left side of the fixed plate in a penetrating mode, the tail ends of the plurality of sets of fixed connecting rods are in bearing connection with transmission shafts, one end of the fixed plate is in bearing connection with a rotary connecting rod, the top of the fixed plate is connected with a supporting connecting rod in a penetrating mode, and the outer surface of the supporting connecting rod is in bearing connection with two sets of transmission shafts. The invention has the characteristics of being long in service life and protecting cloth.

The invention discloses a steel structure lifting device, which comprises a metal fixing block, a suspension ring, the suspension ring is connected with a steel wire rope, and the steel wire rope is connected with a chain. The metal fixing block has a first rectangular through hole in the horizontal direction, and the chain passes through the first rectangular through hole. The through hole is slidingly connected with the metal fixing block, the top surface of the metal fixing block is provided with a horizontally arranged rectangular groove, the rectangular groove is perpendicular to the first rectangular through hole, and the bottom surface of the rectangular groove is provided with a second vertical rectangular through hole. hole, the second rectangular through hole is inserted with a positioning pin, the top surface of the positioning pin is welded with a metal plate, the top surface of the metal plate is fixedly connected with the first rubber block, and the top surface of the metal fixed block is fixedly connected with a trapezoidal rubber block, The bottom surface of the trapezoidal rubber block is fixedly connected with one end of the first metal spring, and the other end of the first metal spring is fixedly connected with the bottom surface of the rectangular groove. The invention can improve the deficiencies of the prior art, and effectively enhances the stability of the steel structure body in the lifting process.

The invention discloses a highway guardrail, which comprises a square tube fixed on a column. The column is provided with a mounting groove, two rotating cavities and a connecting groove, and the rotating cavity and the connecting groove are all connected to the mounting groove. A rotating shaft 1 is rotatably connected between the two rotating chambers, and an impact plate is fixedly sleeved on the rotating shaft 1, and the impact plate is located in the installation groove, and a plurality of springs 1 are fixedly installed between the installation groove and the impact plate. , the side of the striking plate close to the spring one is abutted against a push rod. The advantage is: the rotation setting of the impact plate can generate a horizontal thrust on the push rod during the impact, which is convenient for the operation of the subsequent vibration reduction operation, and can better reduce the impact force received. At the same time, when the impact force does not cause the overall deformation, it cannot be used At this time, the guardrail can also repeatedly play the role of cushioning and vibration reduction.

The invention discloses an anti-warping high-modulus organic silicon insulating tape and a preparation method thereof. The insulating tape is characterized by being formed by compounding an anti-warping resin coating, a resin insulating film layer, a high-adhesion organic silicon resin layer and a high-modulus organic silicon pressure-sensitive adhesive layer in sequence. The preparation method comprises the following steps: preparing anti-warping coating resin, namely mixing unsaturated polyester, aliphatic epoxy resin, high-butyl etherified glycoluril resin, butyl acetate and solvent oil, and adding ethyl acetate for diluting to obtain the anti-warping coating resin; preparing a high-modulus organic silicon pressure-sensitive adhesive: dissolving methyl vinyl MQ resin in xylene, mixing with methyl vinyl silicone rubber, octamethylcyclotetrasiloxane, alpha, omega-dihydroxy polysiloxane, heptane and petroleum ether, heating, dropwise adding a toluene solution of dibutyltin dilaurate, and reacting to obtain the high-modulus organic silicon pressure-sensitive adhesive; and taking the resin insulating film, and carrying coating, drying and the like to obtain the warping-resistant high-modulus organic silicon insulating tape. The insulating tape is suitable for mechanical automatic wrapping, bundling, fixing and the like.

The invention discloses a power supply module mounting part and a module power supply, belongs to the technical field of module power supply assembly, and solves the problem that the mounting of a power supply module in the prior art cannot meet the size allowance and the vibration allowance of a power supply module and circuit board mounting structure. The power supply module mounting part comprises a shell, a first circuit board, a plug-in electric connector, a second circuit board and a power module, the first circuit board, the plug-in electric connector, the second circuit board and the power module are sequentially connected in a stacked mode, the first circuit board is fixedly connected with the shell, and the power module is arranged on the bottom plate of the shell. According to the power supply module mounting part and the module power supply, the size allowance and the vibration allowance of the power supply module and the first circuit board mounting structure can be met.

A lens holder for holding a lens in a headlamp, and to a headlamp having such a lens holder, wherein the lens holder comprises a receptacle section for holding the lens and a mounting section, wherein the mounting section can be mounted in the headlamp by means of fasteners. The lens holder has an at least partially circumferential channel between the receptacle section and the mounting section.