49results about How to "Solve the problem of excessive temperature rise" patented technology

The invention discloses a motor cooling structure, which comprises a cooling plate and cooling teeth, wherein the cooling plate comprises tooth parts and a cooling medium runner connected to the tooth parts, wherein an inward bulge is arranged on the inner wall of each tooth part; a baffle plate is arranged in each tooth part to form a tooth part runner and to communicate with the cooling medium runner connected with the tooth parts, so that a cooling medium can flow in the cooling plate along the runner and cooling of a stator is achieved; and each cooling tooth comprises a cooling tooth root part and a cooling tooth part and is used for transferring heat generated by a winding of the motor to the cooling plate and transmitting the heat through the cooling medium, so that cooling of the stator and the winding of the motor is achieved. The invention further discloses a concentrated fractional-slot winding non-casing permanent magnet motor with the cooling structure. According to the cooling structure, stator teeth and the winding of the motor can be well cooled, a motor casing can be omitted, the volume and the weight of the motor are reduced and the power density of the motor is further improved.

The invention discloses a precise type dynamic and static pressure ceramic main shaft device. A front radial-bidirectional thrust bearing is mounted at the front end of a main shaft, and a back radial bearing is mounted at the back end of the main shaft. The front radial-bidirectional thrust bearing comprises a front main shaft lining. A front ceramic right shaft sleeve, a thrust ceramic shaft sleeve, a front ceramic left shaft sleeve and a front shaft sleeve end cover are assembled at the external part of the front main shaft lining. A thrust shaft sleeve lining is assembled at the externalpart of the thrust ceramic shaft sleeve. A radial ceramic bearing bush, a left thrust ceramic bearing brush, a right thrust ceramic bearing brush, a front bearing brush lining and a front bearing brush end cover are mounted on a stand. The back radial bearing comprises a back main shaft lining. A back ceramic shaft sleeve and a back shaft sleeve end cover are assembled on the back main shaft lining. A back bearing brush end cover, a back ceramic bearing brush and a back bearing brush lining are mounted on the stand. The edge of a ceramic part can be protected by the precise type dynamic and static pressure ceramic main shaft device, so that the impact resistance is enhanced; the strength of a radial-thrust combined bearing is enhanced; the processibility of the ceramic part is enhanced, and the finished product ratio is increased; and the sealing property of the main shaft is enhanced.

The invention discloses a magnetic suspension permanent-magnet direct-drive high-speed motor, which comprises a shell, a stator, a permanent-magnet rotor, a main shaft and two groups of bearing assemblies, wherein the two groups of bearing assemblies are arranged at the front end and the rear end of the main shaft respectively; the stator is fixed in the shell; the permanent-magnet rotor is arranged on the main shaft and emptily sleeved with the stator; each bearing assembly comprises a bearing block, a radial magnetic bearing, a thrust magnetic bearing and an auxiliary bearing; the radial magnetic bearings, the thrust magnetic bearings and the auxiliary bearings are sequentially arranged from the middle part of the main shaft to two ends of the main shaft; the main shaft is provided with a thrust shaft shoulder; and a thrust magnetic gap is arranged between the end surface of the thrust shaft shoulder and the thrust magnetic bearings. The magnetic suspension permanent-magnet direct-drive high-speed motor disclosed by the invention has the advantages that the mass and the rotational inertia of a motor rotor shaft system are small, the critical rotating speed of the shaft system is high, the strength and the security risk are low and the magnetic suspension permanent-magnet direct-drive high-speed motor is convenient to disassemble, assemble and adjust.

The invention relates to the field of dust collectors. The invention discloses a noise reduction and heat dissipation structure and a dust collector. The noise reduction and heat dissipation structurecomprises a motor shell, a motor, a battery shell and a battery pack, wherein the battery pack is located at one end of the motor, the battery pack is of a hollow annular structure, and a gap is formed between the battery pack and the battery shell; an exhaust port is formed between the motor shell and the battery shell; a hollow channel of the battery pack and the gap form an airflow channel, and an outlet of the airflow channel is the exhaust port. According to the technical scheme, the airflow channel is greatly lengthened, and noise generated by friction between air flow at an air outletof the motor and the air outlet can be lowered; the airflow channel is located in the middle and on the periphery of the battery pack, high-speed airflow achieves a good heat dissipation effect on thebattery pack when passing through the airflow channel, and the temperature of the battery pack is effectively reduced.

The invention discloses a compact type hydro-hybrid ceramic main shaft device. On the structural design, the mode of radial middle and thrusting two ends is adopted, simultaneously, the structure that the metal fully includes a ceramic friction pair is adopted, and shape deformation of all ceramic parts can be avoided on design. In the invention, support bearings are taken as ceramic hydro-hybridceramic bearings, and simultaneously have the radial bearing function and axial thrusting function; the ceramic parts are prevented from bearing large tension action, or the condition that the parts are broken due to the overlarge stress of the edges of the parts is prevented, the concentration stress at the inner part of the ceramic parts is reduced, and breakage accidents caused by design flaw of the ceramic parts can be prevented; the lubricating liquid flow is saved as liquid outlet pressure of a radial bearing is taken as the liquid supply pressure of a thrust bearing; the seam of the radial bearing is taken as a choke holder of the thrust bearing, so that the cost of the choke holder is saved; and the radial baring can be tightly combined with the thrust bearing, so that the length is shortened under the condition of unchangeable radial bearing function and axial thrusting function of the main shaft, the structure is more compact and simple and the processing is convenient.

A refrigerator according to the invention can settle the problem of overgreat temperature increase of refrigerating chamber and simultaneously execute the defrosting of cooler used by the refrigerating chamber. Commonly the refrigerating chamber activates a fan used by the refrigerating chamber for executing the defrosting of cooler used by the refrigerating chamber in a freezing mode. Furthermore, the switching from the freezing mode to a cold preserving mode is executed independently from the detection result of cooler temperature sensor used by the refrigerating chamber. At a state that a special condition is satisfied, the fan used by the refrigerating chamber is activated in the freezing mode and the defrosting of cooler used by the refrigerating chamber is executed (step A202, A203). Furthermore when the detection result of the cooler temperature sensor used by refrigerating chamber is above a first preset temperature (YES in step A205), the switching (step A208-A210) from the freezing mode to the cold preserving mode is executed.

The invention discloses a temperature-controllable transparent static box and a field in-situ greenhouse gas collecting method. A water trough is adhered and fixed to a soil ring; a refrigerating water tank is connected with a box; the refrigerating water tank is fixed to the box through a guide rail; a water pump is placed at the bottom of the refrigerating water tank; a water inlet pipe is connected with a water outlet of the water pump in a sleeving manner; a gas pressure balancing tube is communicated with the box through a gas pressure balancing hole; one end of a water outlet pipe is placed on the refrigerating water tank; a top cover is adhered to the top of the box in a sealed manner; the top of an air cooler is fixed to the inner side of the top cover; the output end is connectedwith the water pump through a water pump power controller; a high-sensitivity temperature probe is connected with a temperature controller through a temperature probe inserting hole; a mobile power supply is directly connected with the input end of the temperature controller and connected with a fan through a fan power hole; one end of a sampling tube is communicated with the box through a sampling hole; a gas collecting valve is fixed to the upper end of the sampling tube. The temperature-controllable transparent static box is significant in effect, low in cost, simple in structure, portable,easy to operate, wide in application range and high in result sensitivity, and the temperature and the air pressure inside the box can be effectively controlled.

The invention discloses a temperature control system of a new energy automobile battery pack and a temperature control method thereof. The temperature control system comprises a controller, and the temperature control system further comprises a power source, a heating element, a temperature measuring component and a control component respectively electrically connected with the controller. The temperature measuring module is used for collecting the external ambient temperature of the battery box and the current temperature of the power battery; The control module is used for controlling the battery box to be communicated with the cab or the battery box to be communicated with the outside; The heating element is used for heating the inside of the battery box; The controller controls the battery box to communicate with the cab or the battery box to communicate with the outside according to the external environment temperature and the current temperature of the power battery; The power supply is used for supplying power to the temperature control system. Based on the system, the temperature control of the power battery can be effectively realized, so that the power battery is at the optimal working temperature, thereby ensuring the effective supply of power, and at the same time, the system has a simple structure, low manufacturing cost, and is convenient to assemble, and in addition, the vehicle dead weight can be effectively reduced, thereby realizing energy conservation and emission reduction.

The invention discloses a hydro-hybrid ceramic main shaft device which adopts a symmetrically arranged cone bearing structure and a structure of which a ceramic rubbing pair is totally wrapped by metal simultaneously in the aspect of structural design, and avoids shape mutation of all ceramic parts. The hydro-hybrid ceramic main shaft device disclosed by the invention adopts a ceramic hydro-hybrid bearing as the supporting bearing and cone hydro-hybrid bearings as the front bearing and the rear bearing, has the radial pressure bearing function and axial thrust function simultaneously, has a simple structure, and is provided with a conveniently adjusted axial gap; the hydro-hybrid ceramic main shaft device adopts the structure of which the ceramic rubbing pair is totally wrapped by metal, thus breaking of the ceramic parts caused by powerful stretching or higher force applied on the edges of parts is prevented; and all the ceramic parts avoid shape mutation when being designed, thus stress concentration inside the ceramic parts is reduced, and breaking of the ceramic parts caused by self design defects is prevented.

A solar ventilation refrigerating device comprises a housing, a refrigerator, a cover plate and a solar cell panel, wherein the refrigerator is located in the housing; the cover plate comprises a cover plate cover and cover plate seats; the cover plate seats are located in the housing and distributed at the two ends of the refrigerator; air channels are arranged on the cover plate seats; an air inlet and an air outlet are formed in the cover plate cover; a lifting mechanism is arranged on one side of a bottom plate of the housing, penetrates through the air inlet and the air outlet and is fixedly connected with the solar cell panel; the solar cell panel ascends and descends under the action of the lifting mechanism; the solar cell panel provides electric energy to the refrigerator and the lifting mechanism of the solar ventilation refrigerating device with surrounding solar energy resources; cool air can be continuously supplied to the interior of a vehicle exposed in the sun; the problem of an overhigh temperature rise in the vehicle parked in the open air is solved effectively; and the vehicle comfortability is improved.

The invention discloses a rotor liquid cooling system structure suitable for an inner rotor motor, and belongs to the field of motors. The invention aims at solving the problems that in the prior art,heat in a motor is difficult to dissipate, and the cooling effect is poor. A liquid incoming end is arranged at one side of a rotating shaft, and the other side is provided with a liquid outgoing end. At least one liquid incoming channel is formed on the rotating shaft at the liquid incoming end, and a plurality of radial flow guide channels are formed on the rotating shaft in the inner rotor. Aplurality of axial liquid through holes are formed in the inner rotor. The liquid incoming channel and the radial flow guide channel are communicated with the axial liquid through holes, and an outputend of an external circulation part is connected with the liquid incoming pipe. Cooling liquid in the liquid incoming pipe is conveyed to the axial liquid through holes through the radial flow guidechannels, and the cooling liquid flows to the liquid outgoing end along the axial liquid through holes and is sprayed to an extending end of the rotor winding through a centrifugal force and then is collected through the external circulation part. The structure is suitable for any inner rotor motor, and the heat dissipation effect is good.

The invention discloses a pipeline type device for culturing photosynthetic microorganisms such as microalgae and the like. Thus, the problems that the pipe wall is difficult to clean in the large-scale culturing process, the dissolved oxygen content is too high and the temperature is difficult to control are solved.

The invention relates to an efficient permanent magnet motor cooling heat dissipation structure, and especially relates to a high-power-density outer rotor permanent magnet motor heat dissipation device based on a heat dissipation copper pipe technology. Safe and reliable operation of the motor is guaranteed, and the safety performance and the stability performance of the motor are guaranteed. The device comprises a permanent magnet motor and a heat dissipation copper pipe, one end of the heat dissipation copper pipe is connected with a sunflower radiator, the other end of the heat dissipation copper pipe is inserted into a stator iron core yoke part of the permanent magnet motor, the heat dissipation copper pipe is used for absorbing heat generated in a stator winding and a stator iron core, and the sunflower radiator increases the heat dissipation area.

The invention discloses a large-view-field and high-integration-density focal plane structure of an off-axis camera for space. The heat conduction area of the focal plane structure is greatly increased compared with that of a focal plane structure of an off-axis camera for space in the prior art, the heat dissipating mode of combining heat tubes and cold radiating plates is adopted, the problem that due to large power consumption of the large-view-field and high-integration-density focal plane structure of the off-axis camera for space, the temperature of an imaging device of the focal plane structure rises too quickly in the working process is solved, and the situation that heat generated by multiple detectors cannot be all dissipated through a focal plane substrate, consequently, the performance of the detectors is reduced, and the imaging performance of the space remote sensing camera is reduced is avoided.

The invention discloses a heat management system of a battery pack. The heat management system comprises the battery pack, a plurality of thermoelectric cooling assemblies, a heat conducting device, a cooling device and a battery management system, wherein the battery pack comprises a battery box and batteries; the thermoelectric cooling assemblies are arranged on the battery box; the heat conducting device is stuck on the thermoelectric cooling assemblies; the cooling device and the heat conducting device are arranged oppositely at interval; the battery management system is electrically connected to the thermoelectric cooling assemblies and the cooling device; the battery management system is used for automatically controlling the thermoelectric cooling assemblies and the cooling device. Compared with the prior art, the heat management system of the battery pack, disclosed by the invention, has the beneficial effects that the refrigeration effect of the thermoelectric cooling assemblies is rapid and the problem that the temperature rising of the battery pack is too high is solved; refrigeration and heating of the thermoelectric cooling assemblies are automatically controlled through the battery management system and a constant-temprature effect on the battery pack is extremely good; the consistency of the battery is effectively improved, and furthermore, the performance and service life, and SOC (State of Charge) capacity retention rate of the battery pack are improved.

The invention relates to the technical field of low-voltage electric appliances, in particular to a wiring frame structure, a wiring terminal and a low-voltage electric appliance. The wiring frame structure comprises a wiring frame, the wiring frame is a frame body structure which is enclosed by a top edge, two side edges and a bottom edge and is internally provided with a wiring cavity for a wire to pass through and be fixed; the wiring frame structure also comprises at least one avoiding structure arranged on the inner wall of at least one side edge and sinks away from the wiring cavity, and the avoiding structure is suitable for providing an avoiding space for expansion of the wire when the wire fixed in the wiring cavity is electrified and heated. Through the arrangement of the avoiding structure, when the wire is heated to expand, the wire can be extruded into the avoiding structure, attenuation of locking force is reduced, meanwhile, the contact area of the wire and the wiring board is increased, contact resistance is reduced, temperature rise at the wiring position of a product can be reduced. The problem of over-high temperature rise caused by easy loosening of wires of an existing wiring frame structure due to thermal expansion is solved.

The present invention discloses a hydrotreating catalyst preparation method, which comprises: (1) adding water to a carrier component, and beating to obtain a slurry; (2) respectively or simultaneously adding a solution containing a first hydrogenation activity metal component and an organic compound or an organic compound solution to the slurry, and uniformly stirring; (3) filtering the material obtained in the step (2), washing, and drying to obtain a catalyst intermediate; (4) carrying out mixing kneading on the catalyst intermediate, molding, and drying to obtain a catalyst molding body; and (5) impregnating an impregnating liquid containing a second hydrogenation activity metal component on the catalyst molding body, drying, and calcining under the protection of an inert gas to obtain the hydrotreating catalyst. The catalyst of the present invention has advantages of good metal dispersion, high mechanical strength, and good hydrogenation performance.

Disclosed are a switchgear and an openable busbar room. The switchgear and the openable busbar room mainly solve the problem of difficult installation of busbars in a conventional busbar room. The openable busbar room is characterized in that a skeleton of the busbar room is of a split structure and includes a fixing frame and a movable frame, the movable frame is provided with a first position opened separately from the fixing frame and a second position closed together with the fixing frame, an interlocking mechanism is arranged between the fixing frame and the movable frame, three wall bushings are arranged, each wall bushing is of a split structure and includes a static bushing and a moving bushing, the static bushings are fixedly mounted on the fixing frame, and the moving bushings are correspondingly mounted on the movable frame. The advantages of the openable busbar room are that when the busbars are installed, the skeleton of the busbar room and the wall bushings can be opened,wen the installation is completed, the skeleton of the busbar room and the wall bushings are closed, five-protection interlocking requirements of electrical equipment can be achieved through the interlocking mechanism, which makes the installation of the busbars very simple, and the split type wall bushings are used instead of closed type wall bushings, which can effectively solve an eddy currentproblem.

The invention relates to a high-efficiency cooling heat dissipation structure, in particular to an auxiliary casing type outer rotor permanent magnet synchronous motor cooling device. The safety performance and the stability performance of the motor are guaranteed. The device comprises a permanent magnet motor and a heat dissipation copper pipe, one end of the heat dissipation copper pipe is connected with an auxiliary casing type radiator, the other end of the heat dissipation copper pipe is inserted into a stator iron core yoke portion of a permanent magnet motor, the heat dissipation copper pipe is used for absorbing heat generated in a stator winding and a stator iron core, and the auxiliary casing type radiator increases the heat dissipation area.

The application discloses a liquid metal radiator. The liquid metal radiator comprises a heat exchange part, a radiating part, a circulating pipeline and a driving pump and like components; through the cooperation of above components, the physical characteristic that the liquid metal is low in melting point and high in high-temperature heat conductivity is used for cooling the internal of the cabinet of the gas-insulated metal closed switch equipment, and the problem that the temperature rise in the gas-insulated metal closed switch equipment is excessively high is effectively solved. In the liquid metal radiator disclosed by the application, the liquid metal is used as the circulating cooling liquid, compared with the traditional air, water, non-metallic medium and like cooling mediums, and the liquid metal has higher heat conductivity, so that the liquid metal has more efficient heat transport and extreme radiating capacity. Furthermore, the liquid state is hard to evaporate, hard toleak, safe and non-toxic, and stable in physic-chemical property, and capable of guaranteeing efficient, long-term and stable running of the radiator.

The invention relates to a battery module for carrying out overcurrent by pressing, comprising a plurality of battery modules, a plurality of intermediate copper or aluminum sheets, a plurality of long screws and two end plates; The plurality of battery modules are arranged side by side, one intermediate copper sheet or aluminum sheet is arranged between each adjacent battery module, two battery modules arranged at the outermost end are respectively provided with one end plate, and the plurality of battery modules, the plurality of intermediate copper sheets or aluminum sheets and the two endplates are connected through the plurality of long screws to form a battery module. Further, the battery module comprises a battery cell, a bracket and a nickel sheet; The battery cell is arranged inthe bracket; The battery cell and the bracket are electrically welded with the nickel sheet. The invention reduces the cost of the battery system and the types of materials used. Reduce bolt-on structure, provide productivity, and improve reliability of battery systems; The problem that the temperature rise is too high due to the difference between overcurrent design and actual operation conditions is solved.

The invention provides an electrical oil heater. The heater comprises a plurality of heater body pieces and oil way channels, wherein the heater body pieces comprise an upper oil bag and a lower oil bag, and a heating part is arranged in the lower oil bag; the oil way channels are distributed on the heater body pieces and are used for communication between the upper oil bag and the lower oil bag,the number of the oil way channels varies, and the number of the oil way channels corresponding to the part close to the upper oil bag in the height direction is small; and / or, in the height directionof the heater body pieces, values of the distance M from the oil way channels close to the edges of the heater body pieces to the edges vary, and the values of the M corresponding to the oil way channels close to the upper oil bag is large. Heat is transferred through the upper oil bag and the oil way channels to the entire heater body piece range. When the M values are increased, the distance between the oil way channels and the edges is increased, and the efficiency of heat transfer to the edges is low. When the number of the oil way channels is reduced, the heat transferred by the oil waychannels to the heater body pieces in unit time in the same environment becomes less, the heat transfer efficiency is low, so that temperatures of the edges during are lowered.

The invention discloses a low-temperature-rise type screw for a rubber extrusion filter. The low-temperature-rise type screw consists of a four-thread screw charging section (1), a two-thread conveying section (2) and a four-thread quantification section (3), wherein a cooling water channel (4) is formed in the center of the screw. According to the low-temperature-rise type screw for the rubber extrusion filter, by changing a screw structure, the generated heating quantity of a rubber material in an extrusion process is decreased, and the problem of over-high temperature rise of a screw extrusion rubber material for a large-size rubber filter is solved.

The invention, which relates to the technical field of the mining backup power supply, discloses an explosion-proof mining 5G online backup power supply comprising a battery system, a battery management system, a voltage conversion system, a temperature management system, a dehumidification system, an explosion-proof system and a power supply management system. The voltage conversion system comprises an input voltage conversion module and an output voltage conversion module, the mining power supply is connected with the battery system through the input voltage conversion module, the battery system is connected with the 5G equipment through the output voltage conversion module, and the battery system is connected with the battery management system. And the power management system is connected with the battery management system, the voltage conversion system, the temperature management system, the dehumidification system and the 5G equipment. According to the invention, the preparation and use of a high-power and wide-voltage input / output backup power supply are realized, and the safety and reliability of the system are improved and the service life of the battery is prolonged through temperature, humidity and intelligent management of the system.

A battery pack heat dissipation structure and device are provided. The battery pack heat dissipation structure includes a battery pack (100) which is provided with multiple air vents (110) in the shell thereof. One part of the air vents are communicated with a fan (300) through a ventilation duct (200), and the other part of the air vents are directly communicated with the air outside the batterypack. In the invention, air vents communicated with a fan and air vents communicated with the outside air are arranged in a traditional battery pack, the fan in the device is used as a power source ofthe airflow, and a hollow assembly of the device is used as a ventilation duct, so that the fan can drive the airflow in the battery pack while completing its own task. The problem of excessive temperature rise of the battery packs of battery products and the parts around batteries is solved, and a good heat dissipation effect is achieved for battery packs and parts around batteries. Batteries with larger capacity can be selected in the design of the whole machine.

The invention discloses a large-view-field and high-integration-density focal plane structure of an off-axis camera for space. The heat conduction area of the focal plane structure is greatly increased compared with that of a focal plane structure of an off-axis camera for space in the prior art, the heat dissipating mode of combining heat tubes and cold radiating plates is adopted, the problem that due to large power consumption of the large-view-field and high-integration-density focal plane structure of the off-axis camera for space, the temperature of an imaging device of the focal plane structure rises too quickly in the working process is solved, and the situation that heat generated by multiple detectors cannot be all dissipated through a focal plane substrate, consequently, the performance of the detectors is reduced, and the imaging performance of the space remote sensing camera is reduced is avoided.

The invention discloses a power input assembly for a high-power low-voltage SVG and APF, which comprises an A-phase branch, a B-phase branch, a C-phase branch and a panel which are arranged in parallel, and each of the A-phase branch, the B-phase branch and the C-phase branch comprises an external wire shield, a fuse, a main relay, a current-limiting relay, a current-limiting resistor and a reactor, the external wire protective cover, the fuse, the main relay and the reactor are sequentially connected along the straight line direction, the current-limiting relay and the current-limiting resistor are positioned on the outer side of the main relay, and the external wire protective covers of the A-phase branch, the B-phase branch and the C-phase branch are fixed on the panel. The invention has the characteristics of simple structure, low temperature rise, high reliability, small volume, low cost and the like.

A refrigerator according to the invention can settle the problem of overgreat temperature increase of refrigerating chamber and simultaneously execute the defrosting of cooler used by the refrigerating chamber. Commonly the refrigerating chamber activates a fan used by the refrigerating chamber for executing the defrosting of cooler used by the refrigerating chamber in a freezing mode. Furthermore, the switching from the freezing mode to a cold preserving mode is executed independently from the detection result of cooler temperature sensor used by the refrigerating chamber. At a state that a special condition is satisfied, the fan used by the refrigerating chamber is activated in the freezing mode and the defrosting of cooler used by the refrigerating chamber is executed (step A202, A203). Furthermore when the detection result of the cooler temperature sensor used by refrigerating chamber is above a first preset temperature (YES in step A205), the switching (step A208-A210) from the freezing mode to the cold preserving mode is executed.

A solar ventilation refrigerating device comprises a housing, a refrigerator, a cover plate and a solar cell panel, wherein the refrigerator is located in the housing; the cover plate comprises a cover plate cover and cover plate seats; the cover plate seats are located in the housing and distributed at the two ends of the refrigerator; air channels are arranged on the cover plate seats; an air inlet and an air outlet are formed in the cover plate cover; a lifting mechanism is arranged on one side of a bottom plate of the housing, penetrates through the air inlet and the air outlet and is fixedly connected with the solar cell panel; the solar cell panel ascends and descends under the action of the lifting mechanism; the solar cell panel provides electric energy to the refrigerator and the lifting mechanism of the solar ventilation refrigerating device with surrounding solar energy resources; cool air can be continuously supplied to the interior of a vehicle exposed in the sun; the problem of an overhigh temperature rise in the vehicle parked in the open air is solved effectively; and the vehicle comfortability is improved.