2212results about "Ducting arrangements" patented technology

The utility model relates to the technical field of air conditioning, in particular to an air supply structure, an air supply system and a koji room. The air supply structure comprises an air supply branch pipe, a first air valve assembly and a second air valve assembly. One end of the air supply branch pipe is an air inlet end, and an air supply section with a plurality of air supply holes in the pipe wall is formed on the air supply branch pipe; the first air valve assembly comprises a first driving mechanism and a first air valve arranged in the air supply section, and the first driving mechanism is configured to drive the first air valve to move in the air supply section so as to be close to or away from the air inlet end; the second air valve assembly comprises a second air valve arranged in the air supply section, and the second air valve is located between the first air valve and the air inlet end. According to the method, targeted air supply can be conducted on the local heating area in the space, unnecessary whole-area air supply is reduced, cooling capacity is concentrated in the hot spot area, the method can adapt to constantly-changing hot spot positions, and the air supply area and the air supply amount can be adjusted.

The invention provides an attenuator for ducted air flow systems such as heating, ventilation and air conditioning systems arranged to direct the airflow into the attenuator by reducing the airflow path geometry into a central channel surrounded by absorbing material to damp resonant modes to reduce noise more uniformly across the desired frequency spectrum than resistive attenuators.

The utility model relates to the technical field of elevators, in particular to an elevator car ventilation device capable of adjusting ventilation quantity, which comprises a car, a plurality of air outlet holes a which are distributed at equal intervals front and back are arranged on the middle lower portions of the left side and the right side of the inner wall of the car, and a plurality of air outlet holes b which are distributed in a matrix are arranged on the left side and the right side of the inner wall of the car and located above the air outlet holes a. Adjusting assemblies are arranged on the left side and the right side of the inner wall of the lift car correspondingly, each adjusting assembly comprises two L-shaped fixing vertical plates which are symmetrically arranged front and back, a shielding plate is slidably connected between the two L-shaped fixing vertical plates, and the position, close to the middle of the top edge, of the outer side of the shielding plate is in threaded connection with a pressing bolt. According to the elevator car ventilation device capable of adjusting the ventilation quantity, the opening and closing states of the air outlet hole b can be flexibly adjusted through the baffle plate in the adjusting assembly, so that the air flow is controlled, passengers can adjust the ventilation intensity according to actual requirements, and the situation that passengers feel uncomfortable due to large air flow in winter or under other special conditions is avoided.

The application discloses a kind of purification operating room airflow dynamic regulation method and system, it is related to airflow regulation technology field, by obtaining the air supply of each operating room and main air pipe pressure distribution information, establish airflow disturbance mapping matrix, and calculate the pressure difference disturbance potential and pressure difference resonance kernel value of each operating room according to this, judge whether to trigger airflow self-balancing regulation and control;If trigger, then combine the pressure difference resonance kernel value with the air supply branch pipe position to calculate global pressure difference offset barycenter, and generate air volume control signal to each operating room is airflow regulation;After each regulation, continue to monitor resonance kernel value and offset barycenter position, judge whether to continue regulation.This way, in multi operating room shared air conditioning system, when the airflow air volume of certain operating room is regulated, it can carry out linkage sensing and coordinated adjustment to the global airflow distribution in main air pipe and the state of other operating rooms, reduce the probability that the airflow of remaining operating room occurs disorder, reduce the influence on the cleanliness of remaining operating room.

An indoor air cleaning system with a networking mechanism is disclosed and applied in an indoor field (A) for detecting and cleaning air pollution completely. A real-time air quality monitoring in the indoor field (A) is achieved by arranging plural gas detectors (A), at least one gas molecule control hardware device (2), at least one air conditioning device (3) and a networked cloud computing service device (4) in the indoor field (A) and forming an intelligent linked system by the arranged gas detectors (1) in an outdoor filed and the indoor field (A). Meanwhile, the air pollution in the indoor field (A) is also detected and intelligently compared with an ambient air quality status, and an air guiding volume of an air guiding fan (21) is instantly controlled according to the air quality. Whereby an energy saving benefit of the effective controlling operation of the purification device is achieved.

The air conditioner circulating fan comprises a machine head internally provided with a first air duct, and under driving of a first draught fan in the first air duct, external air enters the first air duct through a first air inlet and then flows out of a first air outlet; a refrigeration assembly, a water cooling assembly, a second air channel and the like are arranged in the machine base, under driving of a second draught fan in the second air channel, external air enters the second air channel after being cooled into cold air through a second air inlet and an evaporator of the refrigeration assembly, and then enters the first air channel through a second air outlet to be mixed with air in the first air channel to form cold air. And the air flows out from the first air outlet. According to the air conditioner, after being cooled by the refrigeration assembly arranged in the machine base, the external air entering the second air channel enters the first air channel and is mixed with the air in the first air channel to form cold air to be sent out, and cooling is achieved while air circulation convection is conducted; and the air volume of the cold air can be adjusted by changing the temperature and proportion of the cold air entering the first air duct, so that the adjustment of cooling is realized.

The invention relates to a UHPC-based fabricated fire-fighting smoke exhaust fan room structure and a construction method thereof, the room structure comprises a main body structure, and the main body structure is prefabricated by adopting an ultra-high performance concrete UHPC material; a fan is arranged in the internal space of the main body structure; the main body structure is provided with a machine room enclosure bulkhead cylinder body and an end cover side wall. Wherein the machine room enclosure bulkhead cylinder body is provided with a bottom plate, a first side wall and a second side wall, the first side wall and the second side wall are connected with the bottom plate and vertically arranged in parallel, and a first opening end and a second opening end which are oppositely arranged are arranged at the two ends of the machine room enclosure bulkhead cylinder body in the horizontal direction respectively; the end cover side wall is provided with a first end cover and a second end cover which are respectively arranged at the first opening end and the second opening end; the first end cover and the second end cover are each provided with a smoke suction and exhaust port, and the smoke suction and exhaust ports are used for being connected with a ventilation pipeline. The UHPC shell is adopted, the advantages of being high in strength and good in fire resistance are achieved, the prefabricated assembly type structure is adopted, construction is convenient, and efficiency is high.

The invention relates to an assembly type integrated fire-fighting smoke exhaust fan room structure which comprises a machine room enclosure bulkhead cylinder body which is provided with a bottom plate, a first side wall and a second side wall, the first side wall and the second side wall are connected with the bottom plate and vertically arranged in parallel, and the two ends of the machine room enclosure bulkhead cylinder body in the horizontal direction are provided with a first opening end and a second opening end which are oppositely arranged correspondingly; the end cover side wall is provided with a first end cover and a second end cover which are respectively arranged at the first opening end and the second opening end; smoke suction and exhaust ports are formed in the first end cover and the second end cover and are used for being connected with a ventilation pipeline; the machine room access door is arranged on the first side wall or the second side wall and can be opened and closed; the fan is arranged in an internal space formed by the machine room enclosure bulkhead cylinder body, the first end cover and the second end cover; the machine room enclosure bulkhead cylinder body, the first end cover, the second end cover and the machine room access door are all of a prefabricated concrete structure. The fabricated integrated design is adopted, the cost is low, the self weight is light, fireproof performance is achieved, and the advantages of being stable, reusable, attractive and the like are achieved.

The present application proposes an air cleaner including a blower configured to inhale air from an outside, filter the inhaled air, and discharge the filtered air; a flow adjusting device disposed above the blower, wherein the flow adjusting device is configured to inhale the air discharged from the blower, adjust a discharge direction of the inhaled air and discharge the air therefrom to the outside in a adjusted direction; and a guide member having one end passing through an upper surface of the blower and received in the blower, and the other end connected to the flow adjusting device. The guide member is configured to retract into an interior of the blower or extend from the upper surface of the blower to induce position change of the flow adjusting device. The angle defined between the upper surface of the flow adjusting device and the upper surface of the blower increases or decreases primarily based on an extent to which the guide member extends from the blower.

The utility model discloses an air conditioner which comprises a machine shell assembly, an air duct assembly and a heat exchanger assembly. The machine shell assembly comprises a machine shell. The machine shell comprises a detachable first shell plate. The air duct assembly is arranged in the machine shell and comprises an air duct volute and a fan, the fan is installed on a second volute, the air duct volute comprises a first volute and a second volute which are oppositely arranged in the first direction, the first volute and the second volute are detachably connected, the first volute is installed and fixed to the machine shell assembly, and the second volute is installed and fixed to the machine shell assembly. The second volute is slidably connected with the machine shell assembly and is detachable relative to the machine shell assembly, and the second volute can slide relative to the machine shell assembly and the first volute in the second direction so that the second volute and the draught fan can be taken out of the machine shell or installed into the machine shell. According to the air conditioner provided by the embodiment of the utility model, the second volute and the fan can be conveniently taken out from the shell assembly, the fan can be conveniently maintained and cleaned, and the disassembly difficulty of the air duct assembly is reduced; and the mounting difficulty of the air duct assembly is reduced.

Disclosed herein is an air duct system that can be easily, quickly, and securely installed and removed from modular air controllers at bed systems. The bed can include a mattress, foundation, air duct hose, hose retainer, and attachment plate. The foundation can support the mattress on a first foundation side and can define a foundation aperture extending between the first foundation side and a second foundation side. The air duct hose can at least partially extend through the mattress and have a first end exposed outside the mattress. The hose retainer can attach to the first end of the air duct hose. The attachment plate can mount at the first foundation side of the foundation and define a plate opening aligned with the foundation aperture. The hose retainer at the first end of the air duct hose can be removably coupled to the attachment plate at the first foundation side.

The multi-split air conditioner system comprises a water module, a full-effect indoor unit, a fresh air module, an adjusting module and a processing device and further comprises a mode setting unit, and the mode setting unit is configured to execute water module priority control and configure the air supply temperature of the adjusting module to be not lower than the indoor temperature during heating and when the water module and the adjusting module operate; the load evaluation unit is configured to generate a water module supply capability urgent signal when the water module priority control is executed and the current supply capability of the water module is evaluated to be lower than the required load; the interval generating unit is configured to generate a current opening degree adjusting interval of the indoor throttling element when the water module supply capacity urgent signal is generated; the current opening degree adjusting interval is a subset of the opening degree adjusting interval before adjustment, the current adjustable interval limits the opening degree of the indoor throttling element, and on the basis that the air supply temperature of the adjusting module is not lower than the indoor temperature, refrigerants in the indoor heat exchanger are released. The method has better control stability.

The utility model discloses a blade angle adjusting type air valve device capable of improving the ventilation efficiency of an air pipe, relates to the technical field of adjusting type air valve devices, and aims to solve the problems that dust is adhered to the surface of a blade after an existing adjusting type air valve is used for a long time, smooth flowing of air is hindered, the air valve cannot accurately control the air flow, and the ventilation efficiency of the air pipe is affected. The air valve shell is arranged on the outer side of the air valve body, the air valve blades are arranged in the middle of the interior of the air valve shell at equal intervals, the air valve blade rotating shafts are installed in the middles of the air valve blades, the air valve blades are arranged in the air valve shell, and the air valve blades are arranged in the air valve shell. A transmission bin is arranged at the upper end of the inner wall of the air valve shell, a dust removal mechanism storage bin is arranged at the lower end of the inner wall of the air valve shell, lifting lead screws are installed on the two opposite inner walls of the air valve shell, dust removal mechanism sliding blocks are installed on one sides of the lifting lead screws in a transmission mode, and a dust removal mechanism is fixedly installed between the two dust removal mechanism sliding blocks.

A displacement air element (1), made of a textile fabric perforated on the front and not perforated on the back, as a standing module for mounting on an optical truck table (2) to generate a microclimate in the area of ​​the optical setups on the table top, is characterized in that it can be mounted on the truck table (2) with a keder (5) over protruding hollow profiles made of aluminium as a keder rail (6), using the existing threaded holes of the table (2).

The invention provides a restaurant exhaust air recovery type kitchen ventilation system and method based on air volume self-adaption. The system comprises a restaurant ventilation subsystem, a kitchen non-open fire area ventilation subsystem and an air path switching controller. A restaurant main exhaust pipe of the restaurant exhaust fan is connected with a restaurant first exhaust branch pipe and a restaurant second exhaust branch pipe, the restaurant first exhaust branch pipe is communicated into a public walkway of a kitchen non-open fire area, a second air valve is arranged on the restaurant first exhaust branch pipe, the restaurant second exhaust branch pipe is communicated to the outside, and a third air valve is arranged on the restaurant second exhaust branch pipe; the kitchen non-open-fire area fresh air fan and the kitchen non-open-fire area indoor fresh air pipe are communicated with the kitchen non-open-fire area, a first air valve is arranged on the kitchen non-open-fire area indoor fresh air pipe, and the first air valve, the second air valve, the third air valve and the restaurant fresh air fan are all connected with the air path switching controller. The invention relates to the technical field of building ventilation and air conditioning, and can solve the problems of energy waste and uneconomical system operation in the prior art.

The utility model relates to a wall corner line device capable of dissipating heat and an inner wall decoration system. The wall corner line device comprises a base unit, a first installation unit, an air conditioning unit, a gas conveying unit, a ventilation unit and a waterproof unit. The base unit is arranged at the bottom of the structural wall body; the first installation unit is arranged on the outer side of the top of the base unit and connected with the decoration structure in an engaged mode. The air conditioning unit is arranged below the ceiling; the gas conveying unit is arranged on the top of the base unit and communicates with the base unit and the air conditioning unit. The ventilation unit is arranged on the outer side of the base unit and detachably connected with the base unit. The waterproof unit is arranged on the outer side of the ventilation unit and detachably connected with the base unit. The decorative structure has the advantages that the ventilation unit is arranged at the bottom of the decorative structure, so that high-temperature air in the air conditioning unit enters a room from a low position through the air conveying unit, and the problems of low heating efficiency and the like of a hot air outlet formed in a ceiling are solved.

The application discloses a mobile air conditioner with ice making function, which comprises a cold air fan body, at least one air inlet and one air outlet are arranged on the cold air fan body, a water tank placing cavity is arranged on the cold air fan body close to the bottom, a water tank is arranged in the water tank placing cavity, and a water pump is connected to the water tank outside or inside; an ice maker assembly is connected with the water pump through a water pipe, the structure of the application is reasonable, the ice maker assembly and the ice block dispersing device are designed, the cold air fan can have the ice making function at the same time, the water in the water tank of the cold air fan is used to achieve the ice making function, the ice blocks are dispersed and conveyed through the ice block dispersing device, and the ice blocks are evenly arranged at the air outlet position of the cold air fan, so that the cold air function and further refrigeration effect can be realized at the same time, resource waste is avoided, the labor cost is reduced, and the practicability of the cold air fan is improved as a whole.

The invention relates to the technical field of household appliances, and discloses a machine head assembly and air outlet equipment, the machine head assembly comprises an air duct assembly, a central air duct and an annular air duct, and the main air duct is internally provided with fan blades and a main motor capable of driving the fan blades to rotate; the main motor has a first working state rotating towards a first direction and a second working state rotating towards a second direction, and the central air duct and the annular air duct are arranged at one end of the main air duct; the air deflector assembly comprises a plurality of air deflectors, and the air deflectors are provided with closing positions for closing the central air duct and opening positions for opening the central air duct; the driving assembly is connected with the multiple air guide plates and can drive the air guide plates to be switched between the closing position and the opening position; and the heating assembly is arranged in the annular air duct.

The application relates to the air conditioning technical field, and discloses a fresh air machine. The fresh air machine comprises a shell which defines a fresh air duct, an internal circulation duct and a shared duct. One end of the fresh air duct is in communication with the outside, the other end of the fresh air duct is in communication with one end of the shared duct, one end of the internal circulation duct is in communication with the inside, the other end of the internal circulation duct is in communication with one end of the shared duct, and the other end of the shared duct is in communication with the inside. The fresh air duct and the internal circulation duct share the shared duct, and are both in communication with the inside through the other end of the shared duct, so that the fresh air duct and the internal circulation duct intersect at the shared duct instead of intersecting each other in the related art, thereby reducing the volume of the fresh air machine by arranging the shared duct.

The application discloses an air conditioner indoor unit and an air conditioner with the same. The air conditioner indoor unit comprises an indoor unit body, a fresh air pipe, an air guide pipe, a fresh air heater and an auxiliary heater. The indoor unit body is provided with an air inlet. An exhaust end of the fresh air pipe is communicated with the air inlet. The fresh air pipe is suitable for guiding outdoor fresh air to the air inlet. An air inlet end of the air guide pipe is communicated with the indoor unit body. An exhaust end of the air guide pipe is communicated with the air inlet. The air guide pipe is suitable for guiding indoor air to the air inlet. The fresh air heater is arranged at the air inlet to heat the airflow flowing into the air inlet. The auxiliary heater selectively heats the indoor air flowing to the air inlet in the air guide pipe. The indoor air is heated and guided to the air inlet through the air guide pipe and the auxiliary heater. The indoor air is mixed with the fresh air flowing to the air inlet from the fresh air pipe. The temperature of the fresh air is preliminarily increased. The airflow is heated twice through the fresh air heater. The heating effect on the fresh air is good. The temperature of the fresh air is greatly increased. The user's comfort is good.

The present disclosure relates to an airflow temperature equalization arrangement (1) for a desiccant dehumidifier piping arrangement (2). The airflow temperature equalization arrangement device (1) comprises a wall structure (4) which at least partially surrounds an airflow temperature equalization chamber (6); at least one regenerated airflow inlet opening (14, 16, 50) leading to the airflow homogenizing chamber (6); a gas flow homogenizing chamber outlet opening (8) for regenerating a gas flow (10); and the temperature sensor (12) is arranged in the airflow temperature equalizing chamber (6) and is used for measuring the temperature of regenerated air in the regenerated airflow (10). The present disclosure also relates to a desiccant dehumidifier conduit arrangement (2) and a desiccant dehumidifier (36).

The utility model relates to a ground air supply cover plate, belongs to the technical field of constructional engineering, and particularly relates to a ground air supply cover plate suitable for oversized space grounds, which comprises a first ground and a second ground. The supporting plate is fixedly installed on the surface of the first ground, and a U-shaped stainless steel clamping groove is fixedly formed in the top of the supporting plate; the number of the inorganic millstones is two, one group of the inorganic millstones is fixedly installed in the U-shaped stainless steel clamping groove, and the other group of the inorganic millstones is fixedly installed on the surface of the second ground; the utility model achieves the effect of ensuring better comfort in the operation process, and solves the problems that the existing ground air supply outlet is not stably connected with the ground, the air supply is unstable, the comfort is reduced, the style of the ground air supply outlet also needs to be carefully considered, in addition, only the air outlet and the return air inlet are directly arranged in the ground air supply pipe ditch, and the cost is low. And peculiar smell is easy to appear in the whole space.

To provide a base member set which can distribute a radiation heat medium while suppressing increase in burden at the time of a construction, a partitioning support member and a heating / cooling system.SOLUTION: A base member set comprises first square steel pipes 10 which are arranged in contact with or in proximity of each other from a back side of a heating / cooling objective space R, and second square steel pipes 30 which are arranged in contact with opposite faces 13 of the first square steel pipes 10 and so as to intersect with the first square steel pipes 10. Communication holes 28 providing communication between the inside of the first square steel pipes 10 and the inside of the second square steel pipes 30 are formed at positions where the first and second square steel pipes contact with each other by intersection, inlet ports for a gaseous heat medium are formed in the first square steel pipes 10 and / or the second square steel pipes 30, a plurality of exit ports 15 for the gaseous heat medium are formed in opposing faces 11 of the first square steel pipes 10 at prescribed intervals, where the flow-out ports 15 reach adjacent faces 12. Partitioning support members 50 are attached to the square steel pipes 10 to support a partitioning plate. A heating / cooling system comprises the base member set and a temperature adjuster.SELECTED DRAWING: Figure 2

Mounting and fastening structure for a drying chamber of the air conditioning return air, characterized in that it comprises the following: several external fastening components (1) which are supported at intervals along the longitudinal direction of the air conditioning return air drying chamber on the outside of the air conditioning return air drying chamber, wherein the air conditioning return air drying chamber is suspended from the concrete structure layer; internal fastening components (2) which are supported on the inside of the drying chamber of the air conditioning return air and fix the sound-absorbing material to the inside of the drying chamber of the air conditioning return air; wherein the internal fastening components (2) comprise: angle bars (3) which are supported at intervals along the longitudinal direction of the drying chamber of the air conditioning return air, on the inner walls of the drying chamber of the air conditioning return air, and rivets (4) which fix the angle bars (3).

The utility model discloses a double-air-path humidifier which comprises a shell provided with an air inlet and an air outlet, a water tank arranged at the bottom in the shell, a flat-plate-shaped humidifying net arranged above the water tank and opposite to the air inlet, and a centrifugal fan opposite to the humidifying net. A water pump is arranged in the water tank, and the water outlet end of the water pump communicates with the top of the humidifying net so as to supply water to the humidifying net; the centrifugal fan is provided with a volute, and the volute is provided with a volute air channel communicating with the air outlet side of the centrifugal fan and the air outlet. And a grid opposite to the air inlet is arranged below the volute. According to the humidifier provided by the utility model, the grille opposite to the air inlet is arranged below the volute, so that double-path air inlet is realized, and the humidifier has the characteristics of large air volume, low power consumption and low noise.

The application discloses a multi-cavity intelligent fragrance system based on emotion recognition and a control method thereof, and belongs to the technical field of smart home. The system comprises a base, a capsule bin, a fixed top cover, a flow guide structure, a plurality of fragrance oil consumable capsules, an emotion acquisition module and a control unit. The capsule bin is provided with a plurality of capsule accommodating cavities, and each cavity is provided with an independent heating element and a physical foolproof structure at the bottom. The top cover is internally provided with a flow guide structure, including a plurality of independent flow guide channels, each channel is in sealed communication with the top of the corresponding capsule cavity, and converges to the fragrance outlet at the center of the top cover. The bottom of the capsule is provided with a foolproof groove and a fragrance type identification part (color ring or NFC tag). The control unit matches the target fragrance type according to the user emotion obtained by the emotion acquisition module, starts the heating element of the corresponding capsule cavity, and the fragrance is released from the fragrance outlet through the flow guide channel. The application does not need rotating parts, has a simple and reliable structure, supports composite fragrance type release, and can be widely applied to home, office and other scenes.

The utility model discloses a kind of cold and warm air-conditioning fan of adjustable air inlet direction, front shell, rear shell, side shell I, side shell II, top cover and water pan enclose a hollow cavity, the water evaporation carrier I is equipped in rear shell inside, top cover is equipped with water storage cavity, the lower water outlet I on water storage cavity and the upper end of water evaporation carrier I are correspondingly communicated, the air outlet of grating is equipped on front shell, axial air inlet is equipped on rear shell, side shell I and side shell II are respectively equipped with air inlet I and air inlet II;Heating body is located in the front side or rear side of fan assembly, fan assembly is located in air duct;Multiple radial air inlets I are equipped on air duct;Adjustable air duct is sleeved on the outside of air duct, multiple radial air inlets II are arranged on it;Motor I drives gear rotation, rack drives adjustable air duct rotation, controls the radial air intake amount in air duct by adjustable air duct.This utility model can realize the adjustable setting of air inlet direction and air volume, realize cold and warm air, one machine multi-purpose function, reduce the use cost of consumer.

The present invention relates to an aspiration or extraction vent for the ventilation of air in an area, said vent comprising a vent body defining an air passage, at least a part of said vent body being intended to form a projection from said wall in said area and comprising an air inlet.According to the invention, - said at least a part of said mouth body comprises a lateral opening and a housing into which said lateral opening opens, - a support (7) being mounted to slide through said opening between an inserted position and a retracted position, said inserted position corresponding to a position in which said support is received in said housing, being placed opposite said air inlet and extending at least partially into said air passage, - said support (7) containing or supporting one or more air filtration elements (8) being configured to allow the passage of air through at least a portion of said air filtration element(s) (8). [Fig. 1].

The invention is suitable for the technical field of air conditioner control, and provides an all-weather self-adaptive energy-saving control method and an air handling unit. The method comprises the following steps: calculating a primary coil outlet air temperature Tc1 and a primary return air ratio alpha; if Tc1gt; if Tcw + 3.5, Psi (0) and Psi (1) are calculated; if the psi (0) and the psi (1) are different, corresponding adjustment is carried out; if the psi (0) and the psi (1) are the same in size and are smaller than 0 at the same time, corresponding adjustment is conducted; if Tc1 is smaller than or equal to Tcw + 3.5, corresponding adjustment is carried out; and the primary coil pipe air outlet temperature Tc1 and the primary air return ratio alpha are recalculated. According to the method, the most energy-saving secondary air return ratio can be calculated in real time, the cold / wet load of the clean room system can be calculated, so that the actual air supply state point is obtained, a traditional secondary air return air conditioning box is more intelligent, the secondary air return ratio can be intelligently adjusted according to the indoor cold / wet load and the outdoor climate condition, and the air conditioning box is in the optimal energy-saving state.