54 results about "Space requirements" patented technology

The present invention relates to an artificial intelligence-based user-customized modular building design and BIM linkage apparatus comprising: a memory including at least one instruction; and at least one processor electrically connected to the memory and configured to perform the at least one instruction, wherein the at least one processor may: receive a user input related to generation of housing space data, wherein the user input includes natural language; apply space requirement analysis criteria to the user input to calculate a housing requirement index; determine, by means of a specification mapping model, hard specifications and soft specifications on the basis of the housing requirement index; if the housing requirement index cannot be calculated or if there exists an element, among the hard specifications, which cannot be calculated by the housing requirement index alone, analyze insufficient information to determine necessary additional requirement information; request, from a user, information necessary to obtain the additional requirement information; reflect an additional input from the user to sequentially update the housing requirement index, the hard specifications, and the soft specifications; and calculate, by means of a space generation model, housing space data on the basis of the updated hard specifications and soft specifications.

This invention relates to a foldable electric golf bag cart. When folded, the connecting rods on both sides of the cart frame and the wheels connected to these connecting rods are folded to the sides of the frame. This invention allows the two rear wheels and the connecting rods linking the frame and the rear wheels to be folded to the sides of the frame, effectively reducing the overall size of the folded electric golf bag cart, minimizing its space requirements, and making it more convenient to move and store.

The utility model discloses a kind of connector wrench structure, including wrench body, the length direction one end of wrench body is provided with first disassembly component, the thickness direction one end of wrench body is provided with second disassembly component, the first disassembly component and the second disassembly component are used to disassemble the buckle of connector;The first disassembly component and the second disassembly component all include two protrusions of symmetrical interval arrangement, the end surface of wrench body is outward convex to form the protrusion;The central portion of wrench body is provided with clamping hole, the shape cooperation of clamping hole and connector outer wall;The length direction of wrench body is provided with pincer portion on the other end, the pincer portion is provided with opening groove, and the shape cooperation of opening groove and connector end portion is matched.The utility model can solve the problem that narrow disassembly space requirement cannot be met by optimizing wrench structure, and help to improve the convenience of disassembling connector.

The combination toilet urinal with overspray and splash containment features a combination toilet and urinal fixture. While avoiding the cost and space requirements of an individual toilet and a separate urinal, the device also anticipates splashing and misdirection, or overspray, associated with the use of a toilet in a standing position. The result is a compact unit that acts both as a toilet and urinal, while maintaining cleanliness of the toilet for users who need to sit. To combine the two devices, a urinal basin is incorporated into the toilet tank space. The urinal basin is ideally incorporated into the front of the toilet tank, allowing access to the urinal from the toilet-seat side of the tank. Restated, the urinal basin is accessible from the front—the same direction a user would commonly stand to urinate into the toilet or urinal.

The utility model relates to the technical field of supporting equipment, in particular to a quick supporting structure for a geological structure belt. According to the technical scheme, the device comprises a bottom plate and further comprises a pair of vertical supporting sliding sleeves fixedly installed on the upper surface of the bottom plate, and telescopic supporting arch frames are arranged at the tops of the vertical supporting sliding sleeves; and the pushing mechanism is arranged on the vertical supporting sliding sleeve to drive the supporting arch frame to move up and down. According to the rapid supporting structure for the geological structure belt, the supporting sliding sleeve, the supporting arch frame, the pushing mechanism, the locking mechanism and other structures are matched, and the height-adjustable supporting arch frame and a rapid locking structure are adopted for the rapid supporting structure for the geological structure belt. The supporting arch frame can move up and down to flexibly adapt to different space requirements; lifting is driven through a mechanical transmission structure, the installation process is simplified, and efficiency is improved; and finally, the mechanical property and safety of the supporting structure are guaranteed through multiple fixing of the locking mechanism.

The present invention relates to a wake-up coil for waking up an electrical device, comprising a first coil unit with a first winding extending in a first printed circuit board plane and a second coil unit with a second winding extending in a second printed circuit board plane arranged parallel to the first printed circuit board plane, wherein the first coil unit has a first contact area and a first coil area, wherein the second coil unit has a second contact area and a second coil area, wherein the first winding in the first contact area has a first inner contact inside the first winding and a first outer contact outside the first winding to electrically contact the first winding.wherein the second winding in the second contacting area has a second inner contact inside the second winding and a second outer contact outside the second winding to electrically contact the second winding, wherein the first coil area and the second coil area are arranged overlapping perpendicular to the first printed circuit board plane, wherein the first contacting area is located outside the first coil area and wherein the second contacting area is located outside the second coil area, and wherein the first coil unit is configured to induce a voltage in the second coil unit by passing an electric current through the first winding in order to wake up an electrical device.

The invention belongs to the field of thoracic vertebra posterior surgical instruments, and particularly relates to an intraoperative lifting device for thoracic vertebra posterior surgery, which comprises a steel plate I, a steel plate II, a conical plate I and a conical plate II, the steel plate II is arranged at the rear end of the steel plate I, side frames are fixed on the two sides of the front part of the steel plate II, adjusting grooves are formed in the two sides of the steel plate I, and sliding blocks are arranged in the adjusting grooves; according to the device, the U-shaped block is driven to move outwards by externally rotating the pushing bolt, so that the sawtooth pressing block is separated from the sawtooth fixing strip, the distance between the first steel plate and the second steel plate can be adjusted, the side frame drives the sliding block to slide in the adjusting groove in the adjusting process, and it is ensured that the adjusting process is stable and controllable; and after the required size is adjusted, the pushing bolt is internally screwed to complete fixation. The convenient size expansion and contraction design can adapt to the vertebra spacing difference of different patients and the surgical operation space requirement, the surgical limitation caused by the fixed device size is avoided, and the surgical operation flexibility is improved.

The invention discloses a space-extensible briefcase. The space-extensible briefcase comprises a briefcase body, an extension mechanism, a limiting mechanism, a cover surface and a briefcase cover mechanism, the expansion mechanisms are arranged at two ends of the briefcase body, the limiting mechanisms are arranged at two ends of the briefcase body, the cover surface is arranged at the top of the briefcase body, and the cover mechanisms are arranged at two ends of the cover surface. Compared with the prior art, the briefcase has the advantages that the cover can be driven to be far away from the briefcase body through the pleated surface, so that the storage space between the cover and the briefcase body is enlarged, the limiting belts slide in the limiting grooves at the moment, and the hand-screwing bolts are screwed up, penetrate through the corresponding limiting holes and are screwed into the threaded grooves, so that the storage space is enlarged; the position of the limiting belt is limited and fixed, the storage space between the briefcase bodies is prevented from being continuously expanded, the space of the briefcase is expanded and contracted, the requirement for the use space is met, excessive files and articles can be stored, and the working efficiency of office staff is improved.

The utility model discloses a multifunctional storage cabinet, belongs to the technical field of daily storage cabinets, and solves the problems that a traditional storage cabinet is inconvenient to disassemble and assemble, poor in combination flexibility and insufficient in space adaptability. The storage cabinet is composed of a plurality of independent cabinet body units, and each unit comprises a top plate, side plates, a front plate and a rear plate. The buckle plate grooves in the upper ends of the side plates are matched with the limiting hook holes of the adjacent cabinet body units through the limiting hooks at the tail ends of the hinged buckle plates, so that rapid up-down connection and independent disassembly are achieved. The side plates are hinged through hinges, the top inserting columns are matched with the bottom inserting holes, and assembling is convenient; limiting notches are formed in the two ends of the partition plate to be matched with the hinged positions of the side plates, and stability is enhanced. Detachable side covers are arranged at the bottoms of the side plates to protect the limiting hook holes. The modularized combination is supported, the disassembly and assembly are convenient, a user can adjust the layout by himself / herself, diversified space requirements are met, and practicability and flexibility are both achieved.

This application discloses a joint motor control method, electronic device, and storage medium. By placing a position sensor only in the reducer, the internal structure of the joint is simplified, reducing the space requirement for position sensor installation, thereby reducing assembly difficulty and hardware cost. In cases where reducing the number of position sensors leads to less position detection data and the position sensor detection results lag behind the motion state of the drive motor, joint motion parameters are acquired, including the position parameters collected by the position sensors. Based on the joint motion parameters, a motor rotor angle is generated using a preset virtual axis model. The drive motor rotation is controlled according to the motor rotor angle, which is directly related to the actual position of the load end, ensuring high-precision control of the joint motor.

The application relates to a variable sweep wing stealth aircraft afterbody wedge shape design method, and belongs to the field of aircraft general design and stealth technology. The application is simple and practical in shape; comprehensive design factors are considered, and comprehensive requirements such as variable tail wing rotation, component coupling, stealth principle and aerodynamic resistance are covered; design constraints can be accurately converted into geometric design; variable tail wing rotation, the stealth principle, aerodynamic resistance and component coupling can be effectively converted into afterbody wedge shape point position and line tangent vector control design to be realized; the fusion design of the afterbody wedge and the surrounding curved surface is better realized; under the premise of guaranteeing the variable tail wing rotation space requirement and the binary nozzle requirement, the aerodynamic and stealth shape integration design of the afterbody wedge shape is realized. The application is mainly applied to the scheme design of the afterbody wedge shape of the variable tail wing. The method is novel, ingenious and compact in structure, has strong applicability, has a wide application range, and has a wide application prospect in the design of military aircraft.

The invention belongs to the technical field of structural design, and relates to an integrated composite material cabin airtight structure, a preparation method and a cabin, the integrated composite material cabin airtight structure comprises an airtight wall plate, an annular rib, a floor profile, a floor lower cross beam, a left side wall rib and a right side wall rib which are all in a composite material structural form; the whole airtight wall plate is in a U shape and comprises a floor and a side wall area in the cabin, the inner shape of the airtight wall plate is determined by overall definition, and turning characteristics can be set according to installation and space requirements. The characteristic parameters of the area, turning towards the two sides, of the bottom of the U-shaped airtight wall plate are designed in a composite material intercalation mode, the thickness is increased so that the bearing and load transferring capacity can be improved, and the reinforced corner area can replace a floor edge beam in a traditional metal cabin airtight structure. According to the airtight wall plate, the left side wall, the right side wall and the floor are of the same continuous structure, the airtightness can be well guaranteed without additional treatment, a complete airtight area can be formed by the airtight wall plate, the front end frame, the rear end frame, the opening frame beam and the canopy, and the airtight performance of the whole cabin area is improved.

This utility model discloses an electric roller belt conveyor with a tensioning structure, including a first outer baffle and a second outer baffle at the end of the first outer baffle. Through the design of telescopic and locking components, this utility model achieves flexible adjustment of the belt conveyor length, enabling it to adapt to different space requirements and solving the problem of traditional equipment being difficult to place due to its fixed length. Combined with a hydraulically driven tensioning roller structure, the belt tension can be quickly and accurately adjusted, effectively preventing belt slack or slippage and improving operational stability. Furthermore, through a splicing auxiliary feeding mechanism, material conveying at the joint between two belt conveyors can be smoothly transitioned, avoiding jamming of square packaging boxes and ensuring a continuous and efficient production process. Compared with existing technologies, this significantly enhances the equipment's spatial adaptability, ease of operation, and conveying reliability, making it particularly suitable for material transport needs in confined spaces or complex working conditions.

The invention relates to a positioning mechanism, a glass assembly, an edge covering forming device and a preparation method of the glass assembly. The positioning mechanism comprises a positioning structure, a cavity is formed in the positioning structure, the positioning structure is provided with a positioning surface, an adsorption hole communicated with the cavity is formed in the positioning surface, and the positioning structure is further provided with a matching hole communicated with the cavity. The vacuumizing assembly communicates with the matching hole and is used for vacuumizing the cavity through the matching hole. According to the positioning mechanism, the fixing effect on the insert in the injection molding process is improved, the limiting reliability is improved, the insert is prevented from being deviated by being punched by a molten material to cause material leakage or glass assembly scrapping, meanwhile, through the mode of fixing the insert through vacuumizing, the adaptability to the material of the insert is high, the shape of a formed covered edge cannot be affected, and the production efficiency is improved. And the vacuumizing mode has low space requirements, and the application range of the insert limiting mode can be widened.

The invention discloses a rapid steering control method suitable for recovery of a semi-submersible vehicle, and belongs to the technical field of recovery of underwater vehicles. The problems that in the prior art, the turning radius is large, the track is long, consumed time is long, the operation space requirement is high, and safety is insufficient are solved. The method comprises the steps that a steering starting point is planned, and after sailing to the starting point, full rudder is achieved at the lowest rotating speed till stable rotation is achieved; power of propellers is cut off when an empty vehicle is executed, and small-radius steering is achieved through pure inertia sliding; observing a bow lifting state and adjusting a rudder angle; when being in the same direction with the mother ship, the ahead vehicle recovers power and depth; and finishing recovery after fine adjustment. Through time sequence cooperation of full rudder, empty vehicle and ahead vehicle, the characteristics of eliminating thrust interference and keeping rudder control by using the empty vehicle are utilized, rapid small-radius steering is achieved, and the advantages of shortening operation time, reducing space requirements and improving fuel economy and safety are achieved.

An automated end-to-end continuous purification system for the manufacture of therapeutic proteins to reduce complexity of manual process operations and minimize physical space requirements.

This invention belongs to the field of new energy equipment technology. To address the problems of inconvenient mobility and limited space requirements in current photovoltaic power generation systems, this invention proposes a containerized photovoltaic power generation device and its construction method. The device includes a container frame and a photovoltaic power generation mechanism. The container frame is used for the integrated storage and transportation of the photovoltaic power generation mechanism. When not in use, the photovoltaic power generation mechanism is retracted within the container frame. When in use, it is unfolded along the width direction parallel to the container frame. The photovoltaic power generation mechanism includes a support component, an auxiliary unfolding component, and a photovoltaic panel body. In the unfolded state, the support component is installed on the container frame and extends outwards, the auxiliary unfolding component is installed on the support component, and the photovoltaic panel body is unfolded and mounted on top of the support component. This invention facilitates overall transportation, allows for rapid unfolding or folding of the photovoltaic panel, and provides stable support at a preset angle after the installation frame module is unfolded, effectively overcoming the technical difficulties in areas requiring temporary or emergency power supply.

The invention belongs to the technical field of storage devices, and particularly relates to a telescopic cabinet structure and a telescopic method. Comprising a box body which is divided into a front box body and a rear box body; convex and concave grooves and sliding rails which are matched with each other are arranged on the wall surfaces of the front box body and the rear box body; an adjusting and locking mechanism is arranged in the convex-concave groove; the concave-convex grooves and the sliding rails which are matched with each other and the locking adjusting mechanism are arranged on the wall surfaces of the front box body and the rear box body, so that stepless adjustment of the depth of the box body in a telescopic range can be realized, and the box body is locked and fixed into a whole for use after being adjusted as required; according to the structure, cost can be saved with the minimum size during transportation and storage, after delivery, a customer can flexibly adjust the depth and fasten according to actual space requirements, personalized requirements of different scenes are met, meanwhile, a double-guide system composed of the convex-concave grooves and the sliding rails and the adjustable extensible shelf ensure that the telescopic process is stable and smooth and the internal space is complete, and the service life is prolonged. And an integrated solution from intensive transportation to customized use is realized.

This utility model belongs to the field of power operation, specifically relating to a modular structure for assembling an insulated stool. It includes a modular platform and modular support legs. The modular platform is provided with slots for connecting the modular support legs, and the modular support legs are provided with protrusions for connecting with the slots. An insulated stool is assembled from at least one modular platform and at least four support legs. This utility model, through the design of the modular platform and modular support legs, allows for simple assembly of an insulated stool during use, and allows for the assembly of insulated stools of different heights according to actual usage needs. It can be disassembled into unit modules for transport, and its unit modules minimize storage space. It solves the shortcomings of bulky and difficult-to-transport, non-adjustable height, and large storage space requirements.

The invention belongs to the technical field of aircraft structure design, and discloses a tail fin for adjusting the zero lifting moment of an aircraft and a shape design method thereof.The tail fin is arranged on the side face of the tail of the aircraft and particularly arranged between a horizontal tail and a fuselage of the aircraft, the tail fin is of a wing structure with the front portion being asymmetric vertically, the upper wing face of the tail fin is a convex arc face, and the lower surface of the tail fin is a concave wing face; the chord length of the tail fin is the same as the tail section modification length of the aircraft fuselage, the extension length of the tail fin is smaller than or equal to the tail section modification width of the aircraft fuselage, and the maximum thickness of the tail fin is the maximum structural height needed for installing the steering engine of the aircraft horizontal tail. According to the design of the tail fin, the requirement for adjusting the zero lift moment of the aircraft is met, the influence on the lift-drag characteristic and the operation stability characteristic of the aircraft is small, meanwhile, the requirement for the steering engine installation space is met through the integrated design of the tail fin and an empennage steering engine, and the space requirement for installing the tail of the aircraft into parts is effectively met.

The utility model discloses a novel mechanical locking type underwater glider pressure-resistant shell, which belongs to the technical field of underwater gliders, and comprises two shell units which are axially connected and a hoop used for connecting the two shell units, an embedding and clamping concave part is arranged on the outer side ring surface of the butt joint end part of the two shell units, and the embedding and clamping concave part is arranged on the outer side ring surface of the butt joint end part of the two shell units. The hoop forms a ring sleeve-shaped component with an opening, a fastener for locking is arranged at the opening of the hoop, and an embedding and clamping convex part matched with the embedding and clamping concave part is arranged on the inner ring surface of the hoop. According to the pressure-resistant shell, through mechanical locking of the circular ring clamps and the shell units, the convenience of assembly and disassembly is greatly improved, the space requirement is reduced, the stability, durability and environment friendliness of connection are improved, the production process is optimized, and the requirements of modern green production and sustainable development are better met.

The present invention relates to a foldable elevator apron (1) which ensures the safety of the operator, since its size changes as soon as it encounters an object, for example the operator's foot. In this way, the invention has smaller space requirements at the bottom, while fully covering the regulation regarding the size for the case of extrication, and the safety of the operator. This is achieved through the design of the apron (1) which consists of two metal pieces, where a moving metal piece (7) can slide relative to a fixed piece (4) through a sliding element (8) which is characterized by innovative design and combines a pin (801), a washer (802) and a disc-shaped element (803).

The utility model discloses foldable toy mounting equipment which comprises a toy table and fixing supports arranged at the four corners of the lower side of the toy table, a plurality of storage cavities are formed in the middle of the upper side of the toy table, and middle plates are arranged in the middles of the upper portions of the front side and the rear side of the toy table respectively. Side plates are arranged at the left end and the right end of the middle plate respectively, and an existing toy table is fixed in layout and difficult to meet the requirements of different scenes. And space adjustment is limited no matter daily storage or playing of many people or few people. However, the innovative structure can easily solve the problem, and the layout can be flexibly changed according to actual conditions. When multiple persons play, the side plates are adjusted to proper angles, the front end and the rear end of the toy table can comfortably contain children, simultaneous interaction of multiple persons is achieved, and the space is compact and reasonable. And when only a few people need to use or an operation surface needs to be opened, the side plates can be quickly laid flat and switched back to a simple desktop state, so that diversified space requirements are met.

The utility model belongs to the technical field of sports equipment placing stand, specifically speaking is a kind of sports equipment placing stand, including first base, install first connecting frame on the first base, install first nut on the first connecting frame, first screw rod is assembled in the first nut, and the placing layer includes two mounting plates, a plurality of support rods are installed between the two mounting plates, the two guide rods on the first base and second base are driven to move synchronously relative, the guide rod drives the two mounting plates on all placing layers to move synchronously relative, the plurality of support rods on the two mounting plates are driven to perform telescopic motion, that is, the outer tube and inner tube on the support rod are driven to move synchronously relative by the two mounting plates respectively, the inner tube is retracted into the outer tube, the length of support rod changes, the structure can change the length of the whole placing stand, and the length of the placing stand can be adjusted according to space requirement or placing demand, which is beneficial to improve the adaptability of the device to space.

The application discloses an aircraft launching device, comprising a fixed support frame, a launching frame, a screw nut mechanism and a driving link. The rear end of the launching frame is hinged to the rear end of the fixed support frame, and the screw nut mechanism is arranged on the bottom frame of the launching frame. Since the nut is limited to rotate by the guide frame, the nut can only move forward and backward along the guide frame, can drive the lower end of the driving link to move forward and backward, and further drive the upper end of the driving link to move up and down, so as to drive the launching frame connected with the supporting rod to rotate around the hinge shaft, and further realize the pitching motion of the launching frame, and further control the launching angle of the aircraft installed on the aircraft mounting portion. The aircraft launching device has the advantages of simple structure, small space requirement of installation and layout, is beneficial to the compact layout of the aircraft, has fast motor reaction speed, has low requirement on environmental conditions, has high and adjustable rotating speed, has fast braking speed, and is beneficial to the accurate control of the launching of the aircraft.

The invention relates to the technical field of cabin door design, and discloses a compact double-follow-up cabin door structure design method and a cabin door structure.The method comprises the steps that the height of a rotating shaft of driving equipment is determined based on the position of the rotating shaft of the driving equipment; determining the first length of the rear cabin door according to the height of the driving equipment rotating shaft, determining the second length of the rear cabin door according to the position of the driving equipment rotating shaft, and determining the length of the front cabin door based on the cabin door total length, the first length and the second length; constructing a cabin door coordinate system by taking the position of the rotating shaft of the driving equipment as an original point, determining an initial position and a final position of a four-bar mechanism in the cabin door coordinate system, and constructing a four-bar mechanism calculation equation based on the initial position and the final position of the four-bar mechanism; solving the four-connecting-rod mechanism calculation equation to obtain the length of each connecting rod in the four-connecting-rod mechanism; the cabin door structure solves the problems that an existing cabin door structure is complex in design, the equipment size is large, and the motion trail space requirement cannot be met.

The application discloses a kind of detection method and detection device of high-precision propeller, it is related to propeller detection technical field, for the deviation that present manual measurement can appear because person uses caliper etc., and time-consuming and labor-consuming.Moreover, the problem that the use space requirement is higher is solved by using three-coordinate measuring machine which is expensive and cumbersome equipment, and the following scheme is presented, which comprises the following steps: S1: obtaining the measurement point cloud of propeller, filtering the measurement point cloud to obtain the target point cloud;S2: the first measurement plane is obtained by processing the target point cloud, and the center point of the pressure cone point cloud is found;S3: the measurement axis is obtained according to the first measurement plane and the center point;S4: the target point cloud is segmented to obtain the blade point cloud of each blade, and the parameters of the propeller are obtained by analyzing the blade point cloud and the measurement axis to determine whether the propeller is qualified, the parameters of the propeller are obtained by analyzing the blade point cloud and the measurement axis to determine whether the propeller is qualified.

The claimed invention relates to a folding utility scaffold that greatly reduces the space requirement for shipment when the utility scaffold is in the folded configuration while maintaining or increasing stability. The scaffold includes first and second ladder frames and a hinge assembly interconnecting the ladder frames. The scaffold comprises first and second ladder frames and a hinge assembly interconnecting the ladder frames. The hinge assembly enables movement of the scaffold between an unfolded configuration in which the ladder frames are spaced apart and a folded configuration in which the ladder frames are disposed side by side, i.e., with the ladder frames touching. The ladder frame and hinge assembly are designed to avoid interference between components of the hinge assembly and components of the ladder frame in the folded configuration so that the ladder frames can be disposed in side-by-side relation in the folded configuration.

The invention discloses an excavator and a split combined type counterweight device thereof, and belongs to the technical field of excavator counterweights, the split combined type counterweight device comprises a first counterweight block and a second counterweight block which are connected with each other, and two third counterweight blocks which are respectively arranged above the first counterweight block and the second counterweight block and are symmetrical to each other; the whole balance weight is split into a plurality of small-weight balance weight blocks by adopting a split structure, transfer and assembly can be completed without special ultra-large hoisting equipment and conventional hoisting equipment, the equipment rental cost is reduced, meanwhile, the gravity center of a single balance weight is easy to control, the hoisting space requirement is small, safety accidents caused by gravity center shift can be effectively avoided, and the service life of the balance weight is prolonged. And the single balancing weight is small in size, uniform in wall thickness and more uniform in cooling during casting, internal defects such as shrinkage cavities and looseness can be reduced, stress distribution during welding is more uniform, and the crack generation probability can be reduced.

This invention discloses a server muffler and a server. The server muffler is installed between the server's fan bracket and hard drive backplane. The maximum structural size of the server muffler is less than or equal to the actual space between the fan bracket and the hard drive backplane. The minimum diameter of the muffler's airflow duct is greater than or equal to the minimum airflow duct required by the fan mounted on the fan bracket. The server muffler has recessed slots for the connectors and cables on the hard drive backplane. A sound cavity is located in the non-recessed slot position between the minimum diameter and the maximum structural size. Because the sound cavity is located in the non-recessed slot position between the minimum diameter and the maximum structural size, the actual space between the fan bracket and the hard drive backplane can be fully utilized, the sound cavity can be adapted to the fan airflow duct, and the sound cavity can avoid connectors and cables, ensuring that the sound cavity design meets the limited space requirements and achieving the design of the muffler's sound cavity within a limited space.