62results about How to "Reduced assembly steps" patented technology

The utility model relates to the technical field of touchpads, in particular to a touchpad assembly and a notebook computer. The touchpad assembly includes an upper cover and a stiffener. The reinforcing piece is connected to the upper cover, the reinforcing piece is used for supporting the bottom of the touch panel, the reinforcing piece is further provided with a first buckling piece, and the first buckling piece is used for being connected with the bottom cover. Wherein the upper cover and the reinforcing piece are of an integrally-formed structure. The touchpad assembly is provided with the reinforcing part connected to the upper cover, and the reinforcing part can support the touchpad at the bottom of the touchpad, so that the touchpad can be clamped between the upper cover and the reinforcing part to fix the touchpad. The touch panel can be stably installed on the upper cover. Furthermore, the upper cover and the reinforcing piece are of an integrally-formed structure, and the upper cover and the reinforcing piece can be manufactured through one mold in the process of manufacturing the touch pad assembly, so that the mold opening frequency of the structure for supporting the touch pad can be reduced, and the manufacturing cost of the touch pad assembly is low.

The application provides a circuit breaker, relates to the technical field of switches, and can reduce the production cost of the circuit breaker and is easy to assemble. The circuit breaker comprises a shell, an indicating piece, a movable contact, a driving shaft and an elastic piece, and the shell is provided with a viewing window. The indicating piece is provided with an acting end and an indicating end, and the indicating end is provided with an opening indication mark and a closing indication mark. When the indicating piece is in a first position, the opening indication mark corresponds to the viewing window. When the indicating piece is in a second position, the closing indication mark corresponds to the viewing window. When the movable contact is in a contact position, the indicating piece is in the second position. When the movable contact is in a disengagement position, the indicating piece is in the first position. The driving shaft drives the movable contact to switch between the contact position and the disengagement position. The driving part of the driving shaft is in abutment with the acting end, and the indicating piece is switched from the first position to the second position. The two ends of the elastic piece are elastically applied to the shell and the indicating piece respectively, and are used for applying an action force close to the driving part to the acting end.

The utility model provides a kind of current transformer and GIS, belong to high voltage switch field.The current transformer includes mutual inductor cylinder and flange, the outside of flange is equipped with gasket by fastener, the height of mutual inductor cylinder protruding from the outside of flange is greater than the height of fastener and gasket protruding from the outside of flange, one end of mutual inductor cylinder is provided with tangent outside fillet and inside fillet passing through spacer ring, the radius of inside fillet is ten times to fifteen times of the radius of outside fillet, the junction of inside fillet and mutual inductor cylinder inside surface is located between the outside surface and inside surface of flange.The GIS includes the current transformer described above.The utility model dispenses with shielding ring, but by the design and optimization of mutual inductor cylinder structure, the end of mutual inductor cylinder can replace shielding ring and play the role of shielding isolation between conducting rod and gasket, screw.

The utility model discloses a snap ring punch for a combined die casting machine, which comprises a supporting seat, a plurality of snap rings are sleeved on the outer wall of the supporting seat, through grooves are arranged at four corners of the outer wall of the supporting seat, limit grooves are arranged among the through grooves, limit blocks are slidably connected in the limit grooves, built-in jacking pipes are fixed on the inner sides of the limit blocks, and the built-in jacking pipes are fixed on the outer wall of the supporting seat. A square penetrating groove is formed in the position, corresponding to the through groove formed in the supporting base, of the built-in jacking pipe, a fixing clamping block is slidably connected into the through groove of the supporting base, a pushing block is fixed to the inner side of the fixing clamping block, and a driving piece is arranged at the top end of the supporting base. When the snap ring is installed, the built-in jacking pipe can move upwards through thread meshing of the round rod and the built-in jacking pipe only by horizontally placing the supporting base, sleeving the snap ring and rotating the connecting base, then the fixed clamping block is driven to be inserted into the clamping groove of the snap ring, rapid assembly is completed, and compared with a traditional snap ring installation mode, the assembling steps are remarkably reduced, and the operation time is remarkably shortened.

The utility model discloses a front end base, a front end assembly, an insertion portion and an endoscope, and relates to the field of medical instruments, the front end base is used for the endoscope, an installation cavity is arranged in the front end base, the installation cavity is communicated with the far end face of the front end base, the installation cavity is used for installing a camera module and an illumination module, and the side face of the installation cavity is open. At least one of the camera module and the lighting module is exposed. The camera module and the lighting module are located in the mounting cavity, it is avoided that a plurality of components are arranged in a plurality of cavities respectively, partition plates among the cavities can reduce the volume utilization rate of the front end base, the internal space of the front end base can be optimized due to the fact that the camera module and the lighting module are located in the same mounting cavity, and therefore when the lighting module and the camera module of the same specification are arranged, the volume utilization rate of the front end base is increased. The size of the front-end assembly can be smaller, and the trafficability of the front-end assembly is higher. The front end seat can be provided with a lighting module and a camera module which are larger in size. In addition, installation personnel can install the camera module and the lighting module at the same time, and assembling steps are reduced.

The utility model discloses a battery pack tray with a rolling steel frame, which comprises a limiting module, a frame module and a bottom plate module which are sequentially stacked from top to bottom and are all provided with corresponding through holes. The three can be fixedly connected by sequentially penetrating through the matched through holes through connecting pieces; the bottom plate module and the frame module are assembled in a splicing mode, the bottom plate module and the frame module are also assembled in a splicing mode, the bottom plate module can be limited, a modular design and a stacking assembly mode are adopted, after the bottom plate module, the frame module and the bottom plate module are stacked, fixed connection of the bottom plate module, the frame module and the bottom plate module can be directly completed, assembly steps and time are greatly reduced, and assembly efficiency is improved.

The utility model relates to the technical field of valves, in particular to a pressure relief valve which comprises a shell body and an integrated valve element, and the shell body comprises a main flow channel, an installation channel and a pressure relief opening which are sequentially communicated. The integrated valve element comprises a valve element body, an elastic piece and a connecting piece, a sealing plate is arranged at the bottom of the valve element body, a first limiting structure is arranged at the top of the valve element body, a through hole is formed in the middle of the connecting piece, the valve element body movably penetrates through the through hole of the connecting piece, and the connecting piece is located below the first limiting structure. The elastic piece is arranged between the connecting piece and the closing plate; the outer side of the connecting piece is detachably connected with the mounting channel, and the sealing plate is used for sealing a water inlet of the mounting channel. Through the arrangement of the integrated valve core, the assembly steps are reduced, the convenience of assembly and installation of the pressure release valve is improved, and the working efficiency of pipeline laying is improved.

The utility model relates to a kind of outgoing structure of double-pole double-throw switch with double contacts, including the output conductive plate of being installed on base and being sheet, opposite first installation slot and second installation slot are built on base, longitudinal partition is equipped in first installation slot, connecting groove is equipped with the partition outside back to first installation slot;The upper end of terminal block is equipped with terminal post, the lower portion of partition is equipped with the opening for terminal block to pass, first installation plate is in first installation slot, second installation plate is in second installation slot;Form dynamic contact installation area between first installation slot and second installation slot;First installation plate and second installation plate are respectively welded with first load static contact and second load static contact, the upper end surface of first load static contact and second load static contact is flush.The above scheme realizes the switching mode of product double breakpoint by optimizing output conductive plate structure, simultaneously, double contacts are directly welded on the same conductive plate, improve processing efficiency and contact consistency.

The utility model relates to electronic heat dissipation technical field especially, relates to an electronic heat dissipation structure and circuit board, electronic heat dissipation structure includes heat dissipation body and installs the heat conduction spare and electronic component on heat dissipation body, and electronic component carries out heat dissipation through heat conduction spare and heat dissipation body, and the heat dissipation effect is better. The heat dissipation body of electronic heat dissipation structure, heat conduction spare and electronic component assemble into a integral assembly and then weld to circuit board, formed integrated whole heat dissipation structure, and once installation is completed, reduced assembly step, can simultaneously adapt the heat dissipation of multiple electronic components, reduced the use of individual radiator and shielding, reduced the production cost of circuit board, improved the space utilization of circuit board, satisfied the compact design demand of circuit board. Heat dissipation body can inject coolant, and the heat dissipation efficiency is obviously improved. Heat conduction spare can not only realize heat dissipation to electronic component, but also can realize electromagnetic shielding to electronic component.

The utility model belongs to the technical field of cutter disassembly and assembly, and particularly relates to a cutter locking structure which comprises a cutter and a cutter handle, and a cam tensioning mechanism is arranged between the cutter and the cutter handle. The cam tensioning mechanism comprises a lock shaft and an eccentric wheel installed on the lock shaft, an axial tensioning piece is arranged between the cutter and the cutter handle, the axial tensioning piece is movably assembled in the cutter handle, one end of the axial tensioning piece is in threaded connection with the cutter, and a tensioning hole is formed in the axial tensioning piece; or a tensioning hole is formed in the short taper shank of the cutter; the axis of the tensioning hole coincides with the central axis of the cutter handle and is perpendicular to the axis of the lock shaft. The lock shaft can rotate relative to the cutter handle, penetrates into the cutter handle and is connected with the tensioning hole in an inserted mode so that the eccentric wheel can be located in the tensioning hole, the eccentric outer side of the eccentric wheel makes contact with the hole wall of the tensioning hole, and the eccentric wheel drives the cutter to move in the axial direction of the eccentric wheel under rotation of the lock shaft so as to tension the cutter. And a locking structure is arranged between the lock shaft and the knife handle. The tool can be prevented from loosening and rotating relative to the tool handle, machining precision is guaranteed, machining efficiency is improved, and machining cost is saved.

The refrigeration equipment comprises a container body, a partition plate assembly and a functional component, the partition plate assembly comprises a partition plate, an air door and a water injection pipe, the air door and the water injection pipe are arranged on the partition plate, the partition plate is installed in the container body and divides the container body into a first chamber and a second chamber, the functional component is arranged in the first chamber, and the water injection pipe is used for being connected with the functional component. The partition plate is provided with an air duct which communicates with the first chamber and the second chamber, and the air door is arranged on the air duct. According to the refrigerator, the air duct, the air door and the water injection pipe are integrated on the partition plate, compared with some refrigerators in the related technology that all the parts are buried in a foaming layer, the thickness of the foaming layer is reduced, the parts can be arranged through the space of the partition plate, the space in the container body cannot be additionally occupied, and the storage space of refrigeration equipment can be increased.

The utility model relates to an optical module, a vehicle lamp and a vehicle, the optical module comprises a first optical assembly used for realizing a first optical function, the first optical assembly comprises a first primary optical unit and a first secondary optical unit, and light is emitted through the first primary optical unit and the first secondary optical unit in sequence; the second optical assembly is used for achieving the function of a corner lamp, the second optical assembly comprises a second primary optical unit and a second secondary optical unit, and light rays are emitted through the second primary optical unit and the second secondary optical unit in sequence; wherein the first primary optical unit and the second primary optical unit are integrally formed, and a part of optical elements in the first secondary optical unit and a part of optical elements in the second secondary optical unit are integrally formed. The optical module is simple in structure and good in light emitting effect.

The utility model provides a circuit breaker, relates to the technical field of switches, and aims to solve the problems that a circuit breaker in the prior art cannot output electric arcs in time and a contact is easy to ablate. The circuit breaker comprises a shell and an arc isolating assembly, at least one arc extinguishing chamber is arranged in the shell, and air outlets corresponding to the arc extinguishing chambers are formed in the shell. And the arc isolating assembly corresponds to the arc extinguishing chamber. The arc isolating assembly is arranged at the air outlet and matched with the air outlet. The arc-isolating assembly comprises a first arc-isolating plate, an extension plate and a second arc-isolating plate which are sequentially connected end to end, and the surface where the first arc-isolating plate is located is parallel to the surface where the second arc-isolating plate is located. An included angle alpha is formed between the surface where the extension plate is located and the surface where the first flash barrier is located and is larger than 0 degree and smaller than or equal to 90 degrees. The second flash barrier is located on the side, away from the arc extinguish chamber, of the first flash barrier. Under the action of airflow generated in the breaking process of the circuit breaker, one end, far away from the first flash barrier, of the second flash barrier can swing relative to the first flash barrier.

This utility model discloses a housing for an evaporative air cooler, belonging to the field of evaporative air cooler technology. The key technical points are: it includes a base and a top cover, with an integrally formed outer shell detachably connected between the base and the top cover. The side wall of the outer shell has an air inlet and an air outlet corresponding to the fan. A mounting base for installing the fan is clamped between the base and the outer shell. The outer shell of this housing is an integrally formed structure, which not only eliminates the assembly steps of the outer shell and reduces the number of parts, simplifying the structure and effectively improving production efficiency, but also significantly improves the structural strength and consistency of the outer shell, making it suitable for mass production.

The application provides a mounting method of a chair, which comprises the following steps: sleeving one end of a front support and a rear support on a horizontal rod to form a stable V-shaped structure, and sleeving the other end of the front support and the rear support into a mounting groove and an inclined limiting groove respectively, which are arranged on symmetrical seat frame side rods, so that the front support is rotatably connected with the mounting groove, and the rear support can support or release the seat frame by inserting or not inserting a limiting clamping plate into the limiting groove, thereby realizing the switching of the support and folding effects of the chair, saving a complicated folding mechanism, and reducing the assembly steps of the chair.

This utility model discloses a drive device for an electric derailleur, comprising a motor, a power output gear, and a gear transmission assembly located between the motor and the power output gear. The gear transmission assembly includes: a first double gear, which is connected to the motor for driving rotation about a first axis; a second double gear, which meshes with the first double gear for driving rotation about a second axis; and a third double gear, which meshes with the second double gear and the power output gear respectively, and is configured to rotate about the first axis. Compared to the prior art, the drive device of this application has a more compact structure. This application also provides an electric derailleur using the aforementioned drive device.

The invention relates to the technical field of integrated circuit manufacturing, in particular to a shaping and positioning device for a connecting board PCB of a surface-mounted LED digital display screen. Comprising a bottom plate, two fixed supporting plates are fixedly connected to the upper side of the bottom plate, two movable supporting plates are arranged on the upper side of the bottom plate, L-shaped plates are slidably connected to the positions, close to the two fixed supporting plates, of the bottom plate, and I-shaped plates are slidably connected to the sides, close to the fixed supporting plates, of the movable supporting plates through connecting rods; the positions, close to the two fixed supporting plates, of the L-shaped plate and the sides, close to the adjacent movable supporting plates, of the I-shaped plates are fixedly connected with extrusion rods through connecting rods, and the fixed supporting plates and the movable supporting plates are fixedly connected with L-shaped elastic pieces. According to the invention, the PCB is extruded by the L-shaped elastic pieces distributed along the circumferential direction of the PCB, so that the PCB is recovered and kept in a straight state, the shaping and positioning of the PCB are synchronously completed, the shaping process does not need to be added, the production cost is saved, the overall steps of assembling the PCB and the shell are reduced, and the production efficiency is improved.

The utility model belongs to the technical field of lighting equipment, and particularly relates to a novel ceiling fan lamp. The lamp comprises a lamp body, a lamp panel and a suspender, a cavity is formed in the lamp body, a controller and a light source driver are arranged in the cavity, a hanging rod is connected to the top of the lamp body, the lamp panel and the power source are integrally designed, the power source is integrated in the lamp panel, a circuit board is fixedly installed on the lamp panel, and a light source and the light source driver are arranged on the circuit board. The hanging rod is connected with the lamp panel through threads. A traditional novel ceiling fan lamp is improved, a ceiling lamp power source is integrated at the bottom of a lamp panel, the lamp panel and the power source are combined into a whole, a lamp source and a light source drive are jointly arranged on a circuit board, a controller is fixed in a lamp body, external connection and complexity are reduced, a hanging rod is made of an integrated sheet metal part through a stamping plate, and the assembling steps and the number of parts are reduced.

The utility model relates to the technical field of electronic communication equipment, and provides an interphone, which comprises a shell with an accommodating space formed inside; the inner frame is totally or partially positioned in the accommodating space; a loudspeaker mounting position for mounting a loudspeaker, a microphone mounting position for mounting a microphone and a PCBA mounting position for mounting a PCBA are arranged on the inner frame, and the loudspeaker, the microphone and the PCBA are preassembled on the inner frame to form an inner frame assembly; the PCBA is electrically connected with the loudspeaker and the microphone, and the inner frame assembly serves as an independent assembling unit and is detachably connected with the shell. The loudspeaker, the microphone and the PCBA are preassembled on the inner frame to form the inner frame assembly, and compared with a traditional distributed assembly framework, only the inner frame assembly needs to be integrally and detachably connected with the shell, so that the assembly steps are reduced, and the assembly efficiency is improved; when a certain assembly breaks down, the whole inner frame assembly can be directly disassembled for inspection and maintenance, the disassembly and assembly workload is reduced, the maintenance difficulty is lowered, and the maintenance cost and time are saved.

This invention provides a window sealing structure assembly and a vehicle, belonging to the technical field of vehicle components. It includes a window frame, and sequentially integrated components forming a ring: a welt groove, a rear lower joint, a water-cutter, and a front lower joint. The water-cutter is located below the welt groove. A mounting groove is formed on the window frame at the open edge of the window frame, corresponding to and engaging with the welt groove. The opening of the mounting groove faces the open window frame and is located inside the outer panel of the window frame. The welt groove fits tightly against the outer surface of the window frame. The water-cutter connects to the lower edge of the open window frame. This invention reduces the channels for internal and external airflow at the sealing structure around the open area of ​​the window frame, which is beneficial for improving the vehicle's NVH performance; it reduces the number of parts during assembly, effectively reducing assembly steps and lowering assembly difficulty; and it ensures a smooth and aesthetically pleasing appearance.

The utility model relates to the technical field of camera shooting equipment, and discloses a camera shooting module, which comprises a base assembly, a shell, a lens assembly, a bearing piece, an image sensor and a driving module, and is characterized in that the base assembly comprises a base and a fixing piece, and the fixing piece is integrally arranged on the base and is positioned on one side of the base; an accommodating cavity is formed between the shell and the base assembly; the lens assembly is fixed in the central opening of the shell; the bearing part is arranged in the accommodating cavity in a sliding manner; the image sensor is fixed on the bearing part; the driving module comprises a magnet assembly and a coil assembly; the bearing piece is provided with a first sliding groove, the fixing piece is provided with a second sliding groove, and a guiding piece is installed between the first sliding groove and the second sliding groove. A first limiting piece is arranged at the upper end of the first sliding groove, and a second limiting piece is arranged at the lower end of the second sliding groove and used for preventing the guiding piece from sliding out. According to the utility model, the assembly steps and assembly errors can be reduced, and the perpendicularity between the fixing piece and the base is ensured; and the bearing part can be conveniently and smoothly installed, the assembling difficulty is reduced, and the product robustness is improved.

This utility model provides a water tank assembly and a cooking appliance. The water tank assembly includes: a water tank with a receiving cavity; a water guide pipe disposed inside the water tank and communicating with the receiving cavity, the water guide pipe and the water tank being integrally formed; a water outlet pipe extending out of the water tank, the water outlet pipe and the water tank being integrally formed; and a connecting pipe, the water guide pipe being connected to the water outlet pipe through the connecting pipe. The technical solution of this application effectively solves the problems of complex assembly process and high processing cost of water tank assemblies in related technologies.

This invention discloses a laser welding device for the housing of an electromagnetic expansion valve with a valve core. The flat electromagnetic expansion valve housing with a valve core is inverted and fixed on a welding fixture and rotates. It also includes a valve core protection mechanism, which includes a heat-insulating positioning sleeve disposed inside the housing and located between the laser weld area and the valve core, a heat dissipation ring disposed on the fixture, and a covering heat dissipation base. There is an air heat-insulating gap between the heat-insulating positioning sleeve and the laser weld area. The heat-insulating positioning sleeve, together with the air heat-insulating gap, blocks the heat conduction from the laser weld area to the valve core. The heat dissipation ring and the covering heat dissipation base respectively guide the blocked heat to the outside of the electromagnetic expansion valve housing for dissipation, thereby forming a directional heat conduction path on the electromagnetic expansion valve housing from the laser weld area to the external heat dissipation ring and the covering heat dissipation base. This invention can effectively prevent the internal valve core from being deformed or damaged due to severe heat conduction during the circumferential welding process of the electromagnetic expansion valve housing, thereby improving the yield.

The utility model relates to the field of breast pumps, in particular to a bra with a hot compress function and a breast pump. The bra with the hot compress function comprises a breast sucking part attached to the breast, a heating assembly located on the breast sucking part and a connecting terminal connected with the heating assembly, the connecting terminal is used for being connected with a power source, and the breast sucking part, the heating assembly and the connecting terminal are integrally formed. And a connecting line of the heating assembly and the connecting terminal is wrapped on the inner side of the milk sucking part. According to the utility model, through the milk sucking part, the heating assembly and the connecting terminal which are integrally formed, the number of parts and assembly steps are reduced, so that the production cost is reduced and the economic benefit is improved; in addition, the heating assembly is directly formed in the breast pumping part, the connecting terminal is in seamless connection with the breast pumping part, and a connecting line of the heating assembly and the connecting terminal is hidden in the breast pumping part, so that the overall sealing performance is ensured.

The utility model relates to electric motor car controller technical field especially relates to a high performance controller device for electric motor car, including base, the upper portion of base has the open mouth, there is electrical element for controlling electric motor car motor in the base, be provided with the upper cover on the open mouth, the wiring post is integrally injection molded on the upper cover, and the wiring post is electrically connected with electrical element, and the base is fixedly connected with the upper cover through the wiring post, through above technical scheme, the utility model solves the problem that the current controller device structure is not enough simple, manual assembly is complicated and cost is high.

The utility model discloses a handrail control mechanism which comprises a push switch and a handrail assembly, the handrail assembly comprises a mounting seat and a handrail supporting rod, a connecting part is arranged at the lower end of the handrail supporting rod, a corresponding supporting part is arranged on the mounting seat, and the connecting part is rotationally connected to the supporting part; the outer end of the supporting part is connected with a locking piece, and a locking groove is formed in the locking piece. The push switch is arranged between the supporting part and the connecting part and comprises a body, and a locking part is arranged on the body; one end of the body is a pressing end, and the other end of the body is provided with an elastic body integrally extending outwards. By means of the elastic body integrally formed at the end of the body of the push switch, elastic force for resetting after pressing is provided for the push switch, a reset piece and the assembly step of the reset piece are omitted, and the assembly efficiency of the armrest control mechanism is improved.

This utility model discloses a control cable connector, belonging to the field of bicycle technology. It includes a cable head connector block, a connecting tube, and a protective sleeve fitted onto and detachably connected to the connecting tube. The connecting tube consists of a small cone, a large cone, and an arc-shaped plate bridge with a groove bridging the small and large cones. The groove allows the cable head connector block to reciprocate linearly within the connecting tube along its axial direction. The two ends of the cable head connector block are respectively connected to the shifter cable passing through the small cone and the derailleur cable passing through the large cone. The small cone has a guide groove for abutting the cable guide tube fitted onto the shifter cable, and the large cone has a spring groove for abutting the guide spring fitted onto the derailleur cable. This connector effectively solves the problem of cumbersome and inconvenient connection between the shifter cable and the derailleur cable mounted along the bicycle frame.

The present application relates to a kind of detachable replacement type middle louvre, comprising: main frame, first glass plate, second glass plate, spacer frame, movable frame, closed assembly and louvre assembly;Movable frame rotates to closed state, mounting frame is in contact with spacer frame, mounting frame, first glass plate, second glass plate and spacer frame are combined to form a sealed cavity, and louvre assembly is located inside the sealed cavity;Pressurizing component is set to one side of mounting frame, for applying pressure to mounting frame towards spacer frame;Movable frame rotates to open state, and mounting frame can be removed from limiting slot.Through unlocking and rotating movable frame, maintenance personnel can repair or replace louvre assembly, and movable frame is rotated to closed state again, and pressure is applied to mounting frame towards spacer frame by pressurizing component;So that mounting frame and spacer frame are more closely contacted, so that after replacing louvre assembly, the sealed cavity can still be restored to sufficient sealing state.

The aromatherapy device comprises a bottle with a bottle opening and a bottle cap which covers the bottle opening and is made of wood, an inner plug is inserted into the bottle opening of the bottle, a liquid outlet channel is arranged in the middle of the inner plug in a penetrating mode, and the liquid outlet channel is communicated with the bottle opening of the bottle. A fragile film used for sealing the liquid outlet channel is arranged on the outer side face of the inner plug, a pressing rod used for puncturing the fragile film is arranged in the middle of the bottle cap in an up-down sliding mode, the upper end of the pressing rod upwards extends out of the bottle cap, and an elastic piece is arranged between the lower end of the pressing rod and the inner plug. The pressing rod is arranged above the fragile film in a suspended mode. According to the utility model, the fragrance is emitted in a pressing and puncturing manner, the operation is simple and convenient, the steps of disassembly and assembly are reduced, and the user experience is improved.