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4results about How to "Work balance" patented technology

Downhole speed reducer

The invention relates to the technical field of speed reducers, in particular to an underground speed reducer which comprises a shell, a sealing cavity is formed in the shell, a first annular sliding sleeve and a second annular sliding sleeve are arranged at the two ends of the sealing cavity respectively, a first piston is slidably and hermetically connected into the first annular sliding sleeve, and a first spring is axially arranged in the first annular sliding sleeve; the input shaft penetrates through the middle of the first piston, a second piston is connected into the second annular sliding sleeve in a sliding and sealing mode, a second spring is arranged in the second annular sliding sleeve in the axial direction, and the output shaft penetrates through the middle of the second piston. When the pressure difference is generated between the sealing cavity and the outside of the shell, the first piston and the second piston can compress or enlarge the space of the sealing cavity, then the pressure in the sealing cavity is increased or reduced till the pressure inside and outside the speed reducer is balanced, the working performance and reliability of the speed reducer in the underground severe environment are improved, and the service life of the speed reducer is prolonged. Pressure difference inside and outside the speed reducer can be balanced, and sealing performance is good.
Owner:DONGGUAN WEIGE AUTOMATION EQUIP CO LTD

Battery thermal management control method, device and equipment and storage medium

The invention discloses a battery thermal management control method, device and equipment and a storage medium, relates to the technical field of battery thermal management, and discloses a battery thermal management control method which comprises the following steps: acquiring vehicle navigation information, vehicle speed information, environment temperature, battery charge state and battery temperature information; determining a vehicle power utilization scene according to the vehicle-mounted navigation information, the vehicle speed information and the battery charge state; when the vehicle power consumption scene is a fast charging power consumption scene, determining a preset thermal management strategy as a current thermal management control strategy; when the vehicle power consumption scene is a slow charging power consumption scene, determining a current thermal management control strategy according to vehicle-mounted navigation information, vehicle speed information, environment temperature and battery temperature information; and completing battery thermal management control according to the battery temperature information and the current thermal management control strategy. According to the scheme, the effect of improving the charging efficiency can be achieved while the battery use requirements in different scenes are met.
Owner:DONGFENG LIUZHOU MOTOR

Prefabricated laminated slab structure

The utility model relates to the technical field of laminated slabs, and discloses a prefabricated laminated slab structure which comprises a slab body, mesh steel bars are arranged in the slab body, and truss steel bars with one ends penetrating to the outer side of the slab body are fixedly installed in the slab body. By arranging the mesh reinforcing steel bars and the truss reinforcing steel bars and reasonably arranging the staggered intervals, the overall performance is not changed while part of the reinforcing steel bars are reduced, the processing time of the laminated slab is shortened, the balance of quality, efficiency and cost is achieved, and meanwhile the connecting angle of the web member reinforcing steel bars is adjusted, so that the overall performance of the laminated slab is improved. Supporting points during installation of a large number of truss steel bars can be reduced, the construction efficiency can be improved, meanwhile, the diameter and the overall height of the steel bars are adjusted and used according to the load-bearing requirement, the overall quality is guaranteed, meanwhile, needed work during production of the laminated slab is reduced as much as possible, and dual optimization of the structural performance and the construction efficiency is achieved.
Owner:CHINA OVERSEAS CONSTR LTD

Refrigerator internal environment control system

The utility model discloses a refrigerator internal environment control system which comprises a refrigerator and further comprises a control module, a storage module, an internet of things module, a refrigeration module, a defrosting module, a sensor and a displayer. The refrigerator further comprises a frame, a shielding plate and a mounting plate, a groove is formed in a cabinet door of the refrigerator, the frame is embedded and fixed along the periphery of the groove, the mounting plate is arranged in the cabinet door of the refrigerator, the displayer is embedded in the mounting plate, a hollow interlayer is reserved between the frame and the mounting plate, and the shielding plate is clamped in the hollow interlayer and can slide up and down along the hollow interlayer. The temperature and humidity parameters of the internal environment of the refrigerator are automatically and adaptively adjusted according to the meteorological data of the external environment of the geographic area where the positioning device is located currently, full-time pre-control in the online and offline states is achieved, and under the clamping matching of the blocking strip and the frame, the shielding plate is tightly attached to the screen of the displayer and slides up and down, so that the display screen can be conveniently and rapidly controlled. And the upward sliding shielding plate protects the display and plays a role in cleaning and cleaning the display at the same time.
Owner:ZHONGKE MEILING CRYOGENICS CO LTD