218 results about "Open cavity" patented technology

The invention relates to the technical field of semiconductor luminescence, and discloses a manufacturing method of a lens module, a mold, the lens module and a sensor device. The manufacturing method comprises the following steps: S1, arranging at least two cavity structures with upper and lower openings in the bearing part; the upper mold and the lower mold are each internally provided with a mold cavity with an opening in one side. And mold cavities of the upper mold and the lower mold extend into the cavity structure from the upper opening end and the lower opening end of the bearing part correspondingly to be aligned and closed. And a gap is reserved between the upper mold and the lower mold in the mold closing process. And S2, a mold cavity for mold closing is filled with the light-transmitting glue, and the redundant light-transmitting glue flows out through gaps in the peripheries of the upper mold and the lower mold and adheres to the inner wall of the bearing part. And S3, after curing, the upper mold and the lower mold are moved away, and a first lens and a second lens are formed in the two cavity structures respectively. The manufacturing method is simple and high in efficiency, and the manufactured sensor device is simple and stable in structure, good in sealing performance, high in precision and easy to optically design.

A reciprocating linear movement massaging apparatus, having a shell, a massaging assembly provided in the shell, a driving mechanism for driving the massaging assembly to perform reciprocating linear movement axially along the shell, and an electric control device for controlling the driving mechanism; the driving mechanism comprises a stator assembly and a mover assembly, an air gap is provided between the stator assembly and the mover assembly; the stator assembly comprises (an) annular coil(s) provided in the shell, the mover assembly comprises a plurality of magnets provided in the annular coil(s), the plurality of magnets enclose to be an annular magnet; the annular magnet is transmissively connected with the massaging assembly and the massaging assembly is located in an annular space enclosed by the annular magnet, and an open cavity is provided in the massaging assembly for receiving a human part to be massaged.

The application discloses a height adjusting structure of a shower rod upper slide seat, which comprises a shower rod and a slide seat arranged outside the shower rod, wherein a socket for placing a shower head is arranged on the slide seat, the socket is located on one side of the shower rod, and the slide seat comprises a slide seat body, an open cavity with an opening arranged at one end of the slide seat body, a through hole communicating with the cavity and penetrating through the slide seat body from top to bottom, the shower rod is arranged in the through hole, and the socket is slidably arranged at the opening; a friction assembly is movably arranged in the cavity and can be in abutting cooperation or separated cooperation with the side of the shower rod away from the socket; the socket is linked with the friction assembly, when the socket drives the friction assembly to be separated from the shower rod along the radial direction of the shower rod; and a reset member is arranged in the cavity and is used for providing a reset force for the friction assembly and the socket. The application does not need to additionally arrange a button or a knob, the slide seat can be driven to slide up and down by directly driving the socket, the structure is simple, the operation is convenient, and the appearance is more simple.

A method for manufacturing an implantable lead including an elongated lead body with a plurality of wires and an electrically isolating outer layer, wherein the method comprises:Providing a sleeve having a sealed end and an open cavity opposite the sealed end and including electrically conducting material;Pulling at least one wire out of the lead body;Positioning the pulled end of the at least one wire within the cavity of the sleeve;Forming the sleeve using a pressing tool such that the volume of the cavity is reduced, that the wire is fixed within the sleeve and that an electrical connection of the at least one wire and the formed sleeve is established;Attaching a contact element to the lead body such that the contact element fixes the formed sleeve at the lead body and establishes an electrical connection to the sleeve.

The utility model provides door bottom sound insulation sealing device belongs to door and window sealing technical field, the utility model provides door bottom sound insulation sealing device includes fixed base, sealing structure and lift adjusting assembly. The sealing structure is embedded in the fixed base, sealing structure can move up and down along the height direction of fixed base, and sealing structure is connected with lift adjusting assembly. When the press end of lift adjusting assembly is pressed, make the sealing structure move to the outside of opening cavity with the push part, thereby lift the sealing structure out of the outside of fixed base, the sealing structure fills the gap between the bottom of sound insulation door or sound insulation window and outer frame, thereby reaches the sealing sound insulation effect, and sealing structure sets up in the opening cavity, therefore when the sealing strip is aged, only need to replace sealing structure can solve the technical problem that the sealing strip aging leads to the poor sound insulation effect.

The utility model relates to the technical field of bone conduction product testing, in particular to bone conduction product testing equipment which comprises a bone conduction sensor device, a sound transmission and sound leakage prevention structure installed on the bone conduction sensor device, and a bone conduction receiver used in cooperation with the sound transmission and sound leakage prevention structure. The sound transmission and sound leakage prevention structure comprises a profiling receiver side part and a profiling receiver bottom part, and the profiling receiver side part is connected to the periphery of the profiling receiver bottom part in a surrounding mode to form a concave open cavity. A profiling sensor bottom is arranged at the bottom of the profiling receiver bottom, and the profiling sensor bottom and the profiling receiver bottom are oppositely arranged; according to the utility model, through the arrangement of the sound transmission and sound leakage prevention structure, when the bone conduction sensor device tests the bone conduction receiver, the vibration of the vibration transmission surface of the bone conduction receiver is transmitted to the bone conduction sensor protruding part of the bone conduction sensor device, and sound leakage between the vibration transmission surface of the bone conduction receiver and the bone conduction sensor protruding part is blocked; and the stability of test work is ensured.

The utility model relates to an SMD (Surface Mount Device) type miniature current transformer which comprises a rectangular transformer shell, one side surface of the transformer shell is provided with an open cavity, the center of the open cavity is provided with an insulating column arranged along the opening direction, the insulating column of the open cavity is sleeved with a circular ring-shaped secondary coil, and the secondary coil is provided with a secondary coil. The secondary coil comprises an annular iron core framework, a coil is wound on the iron core framework, binding posts are arranged at the two ends of the coil, epoxy resin is filled in the open containing cavity, and a sealing cover is arranged at an opening of the open containing cavity. A through core hole is formed in the insulation column, a wire column arranged in the opening direction is arranged at one corner of the open containing cavity, a through wire core hole is formed in the wire column, and a wire groove is formed in the outer side face, corresponding to the bottom face of the open containing cavity, of the mutual inductor shell. The core hole, the wire groove and the wire core hole form a U-shaped cavity, and a U-shaped primary coil is installed in the U-shaped cavity.

The golf club head comprises a club head body, a supporting assembly, a straight rod and a pressing assembly, a straight groove is formed in one side of the club head body, the supporting assembly comprises a supporting plate arranged on the straight groove, a cover plate is arranged on the supporting plate, and the supporting plate can rotate to drive the cover plate to form a closed cavity or an open cavity with the inner wall of the straight groove. The straight rod is fixedly connected to the supporting plate, the straight rod is at least sleeved with one balancing weight, the downward pressing assembly comprises a spring arranged on the inner top wall of the straight groove, the spring is connected with a pressing block, the spring can stretch out to drive the pressing block to be connected to the topmost balancing weight in a pressed mode, and the supporting plate is connected with the inner bottom wall of the straight groove through a connecting assembly and used for fixing the closed cavity. When the gravity center of the rod head body is adjusted, the number of the balancing weights on the straight rod can be directly observed, the number of sleeves on the straight rod is increased or decreased according to the number of the balancing weights, the supporting plate is rotated to drive the cover plate and the inner wall of the straight groove to form a closed cavity for containing the straight rod, and dust, grass clippings and other impurities are not prone to entering in the using process.

The cooking cage structure comprises a plurality of cooking cage frames, the cooking cage frames are stacked in the height direction, and each cooking cage frame is provided with an open rice dumpling containing cavity; supporting columns are arranged on the surfaces, provided with the rice dumpling containing cavities, of the cooking cage frames, the cooking cage frame located on the top layer is detachably provided with an anti-floating cover through the supporting columns, hanging and connecting pieces are arranged on the peripheral side of the anti-floating cover, and the anti-floating cover is connected to the cooking cage frames through the supporting columns and the hanging and connecting pieces. The detachable anti-floating cover covers the cooking cage frame on the top layer, so that the rice dumplings in the cooking cage frame on the top layer are prevented from floating in the water cooking process, the rice dumplings on the top layer are completely immersed in water and are uniformly heated, and the taste of the rice dumplings is improved; the anti-floating cover is detachably installed on the cooking cage frame on the top layer through the hanging pieces and is matched with the supporting columns to achieve rapid positioning and installation, and the working efficiency is improved.

The box structure for range hood and the range hood, the box structure comprises: fan box main body, the inside hollow forms the bottom and the front side open cavity, so that the fan system for range hood is arranged in it, the top wall of the cavity is equipped with the exhaust port for being connected with the air outlet of the fan system, the left and right side edges of the front side open cavity are all folded to the back and extend to the cavity interior to form the folded edge; the back of the cover plate is attached to the front side of the two folded edges to close the front side opening; the first stop piece is arranged on the back of the cover plate and is adjacent to or attached to the back of the two folded edges to block the cover plate from separating from the folded edge; the second stop piece is arranged on the back of the cover plate, above the first stop piece, and is supported on the top wall of the cavity and connected between the top wall of the cavity in a detachable manner; meanwhile, the first stop piece can be moved under the action of the actuator to release the constraint on the two folded edges. The application is convenient to disassemble and can ensure the structural stability.

The application discloses a kind of oil-water separation devices for collecting oil from floating oil in dirty oil pool, including first shell, first shell has multiple, multiple first shell is enclosed to be a closed area, support frame is arranged at the central position of the area enclosed by multiple first shell, support frame can rotate, and outlet and stirring member are set on support frame, oil-water mixture enters into first shell through outlet, first shell has upwardly open cavity, and the lower end surface of cavity has inclined bottom surface, water outlet is set at the central position of bottom surface, valve assembly is set in water outlet.In the use of the device, the oil-water mixture in the first shell can be extracted by the suction assembly, and the use of the limiting assembly can prevent the suction assembly from extracting the lower layer of water (or reduce the amount of water extracted), thereby facilitating the user to use the device.

The invention discloses an optical sensor for measuring gas components of mixing equipment, and belongs to the technical field of gas component detection. Comprising a plurality of arrayed measuring units, and each measuring unit comprises a laser and a detector; the measuring unit further comprises an optical assembly, an air suction cavity, an open type cavity and a main hollow roof prism which are sequentially arranged in the direction of an incident light beam emitted by the laser, the optical assembly is connected with the air suction cavity in a sealed mode, and the air suction cavity is communicated with the open type cavity; the laser and the detector are arranged at the same end of the optical assembly. The compact layout of each structure in the measurement unit is realized, and a plurality of reciprocating light paths are formed in the gas absorption cell formed by the suction cavity and the open cavity by utilizing the reflection of the main hollow roof prism and the optical component to the incident light beam, so that the absorption optical path required by various gas detection is ensured, and the detection accuracy is improved. And the measurement requirements of mixing equipment with various sizes are met.

The invention relates to the technical field of protective emergency masks and oxygen supply, and discloses a mine lifesaving escape oxygen supply mask which comprises a placing box body, a door plate and a pull ring, the door plate is hinged to the middle of one side of the placing box body, the pull ring is fixedly installed in the middle of the inner wall of the door plate, and an insertion buckle is annularly connected to the middle of the pull ring. One end of each inserting buckle is in a trifurcate shape, the adjacent portion of each inserting buckle is an open cavity and is irregular, the visual panel is arranged through the containing box body, miners can conveniently and visually check the state of the face mask, the smoke sensing device and the LED display lamp are combined, a fire disaster can be found in time, the position of the face mask can be accurately indicated, and it is ensured that the miners can rapidly find and use the face mask; the mask body is attached to the face, the soft cushion mouth-nose mask is arranged, the mask is comfortable to wear and free of oppression, the oxygen supply system effectively prevents oxygen from leaking and harmful gas from entering through the design of double filter screens and a sealing gasket, breathing safety is ensured, the oxygen inhalation port and the oxygen exhalation port are separated, gas backflow is avoided, and breathing smoothness is ensured.

The invention relates to the technical field of electric connection, in particular to a high-speed shielding connector which comprises an injection molding outer shell, a first shielding lower shell, a second shielding lower shell, a shielding upper cover, an insulating base, a conductive terminal and a connecting wire. The first shielding lower shell, the second shielding lower shell and the shielding upper cover form a shielding shell, and the injection molding outer shell is provided with a fixing cavity; the fixing cavity is used for fixing the shielding shell, and the plugging end of the shielding shell is exposed outside the fixing cavity; the first shielding lower shell is provided with an open type cavity, connecting vertical plates are arranged on the two sides of the open type cavity, the second shielding lower shell is arranged in the open type cavity, and the two sides of the second shielding lower shell are connected with the connecting vertical plates. Omnibearing electromagnetic shielding is provided for inner core connecting points of the conductive terminals and the connecting wires, mutual interference between internal high-speed signals and external complex electromagnetic environments is effectively isolated, and signal integrity is ensured.

The invention discloses an air test system design method suitable for pressure control of an open containing cavity. The method comprises the following steps that working condition requirements are determined, air source configuration is selected, a small-power air compression station and an energy storage tank are adopted, and the pre-inflation pressure is 0.8 MPa or 2 MPa; an AMESIM initial model is established, an air inlet unit adopts a plurality of small-drift-diameter high-frequency electromagnetic on-off valves to be connected in parallel to form a matrix type control valve group, and the matrix type control valve group is connected with an air compression station, an energy storage tank and a tested containing cavity to form a closed-loop control system; simulation verification is carried out, and pressure and flow curves are analyzed; optimizing the model and parameters, and adjusting the specification of the valve group until working conditions are met; and establishing an air test system which is established according to the optimization model and comprises a basic rack, a pressure air source, an air storage unit, a matrix type control valve group and a control system. According to the method, the defects of an existing design in the aspects of economy, reliability and full working condition meeting are overcome, rapid voltage building and stabilizing are achieved through high-frequency matrix control, the system resolution ratio and the response speed are improved, cost is reduced, and safety is improved.

The invention provides a P-type narrow cavity retardation low-frequency sound absorption metamaterial, and belongs to the technical field of sound absorption materials. The central honeycomb unit and the three P-type sound absorption units form a triangular assembly which is used as a basic structure of the sound absorption metamaterial; the P-type sound absorption unit comprises a P-type cavity defined by a top plate, a back plate and side walls, and the P-type cavity comprises an open cavity and a narrow cavity; the P-type sound absorption unit and the central honeycomb unit are made of hard materials, the cavity wall of the P-type cavity is coated with a flexible coating, and the interior of the central honeycomb unit is filled with a porous sound absorption material; the cross section of the narrow cavity of the P-type cavity in the direction from the top plate to the back plate is in a V shape, and a V-shaped slit is formed. Micropores are formed in a top plate of the P-type sound absorption unit, are distributed in the open cavity or the narrow cavity and are at least tightly attached to the side wall of one face of the P-type cavity. According to the invention, two sound absorption behaviors of prolonging a sound propagation path and geometric resonance by clinging the micropores to the cavity wall are simultaneously realized within a limited material thickness range.

The application provides airtight packaging structure of a cavity device, which comprises a semiconductor substrate, a first semi-open cavity is arranged on the front surface of the semiconductor substrate; a micro-electro-mechanical system layer is arranged above the front surface of the semiconductor substrate, a first region of the micro-electro-mechanical system layer and the first semi-open cavity form a first closed cavity; a displacement sensor is arranged in the first closed cavity; a cover plate is arranged above the micro-electro-mechanical system layer, a second semi-open cavity is arranged on the front surface of the cover plate at the position opposite to the first region of the micro-electro-mechanical system layer, and the second semi-open cavity and the first region of the micro-electro-mechanical system layer form a second closed cavity; and a bonding layer is arranged between the micro-electro-mechanical system layer and the cover plate, which is used for bonding the micro-electro-mechanical system layer and the cover plate together and sealing the second closed cavity. Compared with the prior art, the application can identify abnormal air leakage and air release of the cavity in the MEMS manufacturing process, provide basis for the improvement of the MEMS performance, improve the yield and reduce the cost.

The invention relates to the technical field of drawer side plate decoration accessory installation, and provides a drawer front connecting mechanism and decoration cover quick-assembly structure which comprises a decoration cover, the decoration cover is installed on a shell of a drawer front connecting mechanism, an open cavity is formed in the decoration cover, and a sliding connection guide part is arranged between the shell and the decoration cover; during installation, the decorative cover transversely moves relative to the shell through the sliding connection guide part, so that the shell is relatively inserted into the cavity of the decorative cover, and quick installation of the decorative cover and the shell is achieved. The decorative cover is provided with an open cavity, a sliding connection guide part is arranged between the shell and the decorative cover, and during installation, the decorative cover transversely moves relative to the shell through the sliding connection guide part, so that the shell can be inserted into the cavity to achieve quick installation.

The invention discloses a noise online monitoring microphone sensitivity comparison calibration device and method. The device comprises an open cavity, a microphone to be calibrated, a monitoring microphone, a pure tone generator, a sound guide tube and a control unit, wherein the open type cavity is provided with a first connecting end and a second connecting end which are oppositely arranged, the first connecting end is used for being communicated with the sound inlet side of the microphone to be calibrated, the second connecting end is used for being communicated with the sound inlet side of the monitoring microphone, and the side wall of the open type cavity is provided with a plurality of through holes communicated with the external environment. External noise can enter the open type cavity; the sound guide tube is used for communicating the pure tone generator with the sound guide interface of the open cavity so as to guide the pure tone output by the pure tone generator into the open cavity; and the control unit is in signal connection with the pure tone generator, the monitoring microphone and the microphone to be calibrated, and is used for adjusting the output of the pure tone generator based on a feedback signal of the monitoring microphone, so that after a pure tone sound field in the open cavity reaches a preset reference condition, the microphone to be calibrated is calibrated. And reading a return signal of the microphone to be calibrated to obtain the sensitivity or the sensitivity characterization value of the microphone to be calibrated.

The utility model provides a coating ring cutting device based on anticorrosive coating adhesive force detection. The coating ring cutting device comprises a machine body, a rotary drum, a driving structure and a positioning structure. The machine body is provided with a rotatable switching part. One end of the rotary drum is coaxially connected with the switching part, the other end of the rotary drum is provided with an open cavity, and an annular sawtooth part is arranged at a window of the open cavity. The driving structure is arranged on the machine body and can drive the switching part to rotate. The positioning structure is arranged on the machine body and provided with a contact part extending into the open cavity, and the contact part is provided with a positioning groove matched with the hanging end of the spindle. According to the coating ring cutting device based on anticorrosive coating adhesive force detection, manpower is reduced, the coating ring cutting device can adapt to a thick coating, it can be guaranteed that in the process that the rotating drum covers the spindle, the rotating drum is positioned, it is guaranteed that the rotating drum and the spindle are coaxially arranged, then it is guaranteed that an annular cutting seam and the spindle are concentric, and the service life of the spindle is prolonged. The final detection effect can be ensured, and the practicability is high.

In some embodiments, a dressing can include a treatment device configured with a central hub and a plurality of legs extending outwardly from the central hub. In some embodiments, the central hub and the legs can collectively constitute a treatment manifold configured to minimize tissue ingrowth. For example, the treatment manifold can include closed cell foam. In some embodiments, the treatment manifold can be unencapsulated. For example, a single film layer can be attached to a first surface of the treatment manifold, while an opposite surface of the manifold can be exposed and / or uncovered. Other devices, dressings, systems, and methods are also disclosed.

A tip coupler for a bucket in a bucket lip assembly for a machine, such as a hydraulic mining shovel, includes a coupler body including a mounting portion and a nose portion projecting from a forward body end of the mounting portion. The forward body end includes an end face and a plurality of tip-contact surfaces arranged about the nose portion. The back body end of the mounting portion includes a plurality of corners, and a plurality of load-reacting surfaces offset fore-aft from the plurality of corners and arranged about an open cavity end of a lip-installation cavity in the coupler body. Related apparatus is also disclosed. The tip coupler may be arranged in a bucket lip assembly of a bucket of the machine.

The invention discloses a bionic curved surface modular landscape seat and a rapid construction method thereof, and belongs to the technical field of urban landscape facilities. The seat is composed of a force bearing base plate, a special-shaped anti-corrosion wood plate, a fast-inserting keel, a cavity partition plate and a drawer type light source module. The back face of the special-shaped plate forms a continuous bionic curved surface according to the ischium-thighbone pressure isoline, is consistent in thickness and different in outline and is connected with a T-shaped groove of the base plate in a buckled mode, a completely-open cavity is formed in the bottom, a partition plate drill hole is drilled for animals to drill, jump and hide, and a light source is hidden in a drawer groove in the back face of the seat plate and softly overflows after being subjected to high diffuse reflection of the cavity. The construction method comprises the steps of three-dimensional bionic modeling, NC cutting, vacuum pressurization corrosion prevention, on-site chassis-keel buckle insertion and partition plate and light source push-in, assembly can be completed without bolts, and one-step maintenance extraction is achieved. Human-animal sharing is achieved, construction is rapid, road-occupying-free maintenance is achieved, the manufacturing cost and the life cycle cost are both lower than those of a steel structure of the same grade, and the system is suitable for eco-friendly scenes such as parks, blocks and campuses.

The utility model belongs to the technical field of laser pens, and particularly relates to a laser pen with a pen point storage bin. A pen point storage bin is arranged on a pen body of the laser pen; the pen point storage bin comprises an open cavity, and the open cavity is formed in the pen body and used for containing a plurality of pen points; the cover shell is movably arranged on the pen body, and the cover shell and the open cavity form a closed cavity capable of being opened / closed. The laser pen is used for solving the technical problem that the pen points of a laser pen provided with a plurality of pen points are easy to lose in the prior art.

The invention discloses an open-cavity cross beam lower seat type unit curtain wall structure and a mounting method thereof.The open-cavity cross beam lower seat type unit curtain wall structure comprises a first floor body structure, a second floor body structure, a unit plate and a bottoming cross beam, the bottoming cross beam is fixedly connected with a steel part on the first floor body structure, and the unit plate is composed of a glass panel, a bottom cross beam, a stand column and a top cross beam; an aluminum alloy reinforcing material is arranged at the position, close to the stand column, of the bottom of the bottom cross beam, the aluminum alloy reinforcing material is connected with the bottom lifting cross beam through an adhesive tape, the aluminum alloy reinforcing material is fixedly connected with the bottom cross beam, an aluminum connecting piece is arranged on the second floor body structure, and the aluminum connecting piece is fixedly connected with a groove type embedded part in the second floor body structure. The aluminum alloy reinforcing material is arranged at the position, close to the stand column, of the bottom of the bottom cross beam, the aluminum alloy reinforcing material is matched with the bottom lifting cross beam, and the problem that the cavity opening cross beam and the bottom lifting cross beam cannot be connected and fixed is solved.

Footwear article manufactured using a process (100) comprising the following steps: - Providing (103) a mold (1) defining an open cavity (2), wherein the shape of at least part of the cavity (2) corresponds to the shape of a sole (3) of the shoe article (10), wherein the cavity (2) is configured to open into the cavity (2) via at least one injection channel (4, 4', 4'', 4''') to receive a mixture comprising a molten material and a supercritical fluid; - Arranging (105) an edge (5) of an opening of the cavity (2) which is in contact with a contact area (6) of a surface (7) of at least one part of a shaft (9) of the shoe article (10), such that the surface (7) of the at least one part of the shaft (9) ensures a closure of the cavity at the contact point between the contact area (6) and the edge (5); - Applying negative pressure (105 bis) to the cavity (2); - Injecting (107) the mixture into the cavity (2); - Pressure relief (108) of the cavity (2) of the mold to trigger an expansion of the mixture in the cavity (2) and to form the sole (3) from a foamed material resulting from the expansion of the mixture, wherein at least a part of the surface (7) of the at least a part (9) of the shaft is enclosed in the foamed material of the sole (3).

The application discloses a noise reduction thin layer composite structure, which comprises a shell, a steel net, a thin layer sound absorbing body and a composite damping layer, the shell is an open cavity, one side of the thin layer sound absorbing body is connected with the steel net through pressing and the other side is connected with the composite damping layer through pressing, and both are installed in the shell; the composite damping layer comprises a damping layer, a shear body and an impedance matching layer, the shear body is periodically distributed on the surface of the side of the damping layer far from the thin layer sound absorbing body, and the impedance matching layer is an air layer enclosed by the shell and the damping layer. The application can have excellent low-frequency sound absorption and sound insulation performance under the condition of light and thin structure, meets the comprehensive requirements of outdoor weather resistance and installation adaptability, effectively reduces the influence of noise generated in the operation process of a transformer substation on the environment and residents, the characteristic size is in the range of deep sub-wavelength scale, is beneficial to realizing the optimization of low-frequency acoustic characteristics under the condition of limited thickness, has excellent low-frequency sound absorption performance and has tunable low-frequency sound absorption and insulation characteristics.

The utility model provides a multi-way air supply special area drawer and refrigerator, including drawer, sealed cavity, first fan, air duct piece and semiconductor module, the drawer has first open cavity, sealed cavity has second open cavity, the first open cavity becomes sealed space after the drawer enters the second open cavity, and the semiconductor module is sealed space after the drawer enters the second open cavity. An air return port and a plurality of air supply ports which are communicated with the first open cavity are formed in the sealing cavity at certain intervals, the first fan is fixed to the sealing cavity and arranged above the air return port, the air duct piece is fixed to the sealing cavity, through holes formed between the air supply ports and the air return port are formed in the air duct piece, and the air duct piece is provided with a concave first air duct; the inner wall of the first air channel and the outer wall of the sealing cavity define a first air channel cavity communicating with the air supply outlet and the air return inlet, one end of the through hole penetrates through the first air channel, and the semiconductor module is fixed in the through hole in a sealed mode and extends downwards to be close to the sealing cavity. The semiconductor module is adopted to carry out multi-path air supply and independent temperature control on the drawer, the temperature control effect is good, and odor tainting is not prone to occurring.

The utility model relates to food processing technical field, concretely relates to a kind of industrialization multilayer pollution prevention chicken steaming equipment, including support frame, the support frame is U-shaped hollow structure, the both ends of support frame are fixedly installed with multiple hanging parts, multiple the hanging part is all installed with multiple layer plate connecting rod, the inside of both sides layer plate connecting rod is fixedly installed with steaming part.The utility model is through being provided with multiple blood foam groove between layer plate connecting rod, effectively prevent blood foam drop pollution lower chicken body in the steaming process, improve the evenness of colour and lustre and sensory quality of product, by adopting the setting of multilayer stacking, substantially improve space utilization, improve the production capacity of single processing, meet the requirement of industrialization batch production, equipment is semi-open cavity, can make internal steam evenly distribute in the process of steaming, guarantee the stability of processing product.