34results about How to "Change does not happen" patented technology

The present invention is to provide a nitrogen-filled spleen-invigorating Bazhen cake and a nitrogen-filled packaging method, which overcomes the defects of the prior art, and is to seal and package the spleen-invigorating Bazhen cake in a packaging bag under nitrogen-filled environmental conditions, especially The fatty acid data of Jianpi Bazhen Cake medicine will not increase, thus effectively improving the stability and safety of Jianpi Bazhen Cake medicine, thereby greatly extending the validity period of the drug, and improving the economical value of Jianpi Bazhen Cake medicine sex, and the production process is simple.

The invention provides a pulse energy storage capacitor packaging method and packaging structure, belonging to the energy storage capacitor technology field. The pulse energy storage capacitor packaging method comprises steps of arranging a plurality of pulse energy storage capacitors together and connecting and fixing the plurality of pulse energy storage capacitors in parallel to form a pulse energy storage capacitor set, and arranging at least one positive electrode terminal lead and at least one negative electrode terminal lead for the capacitor set, packaging the pulse storage energy capacitor set inside a packaging housing through a glue solution for potting, wherein the positive electrode terminal lead and the negative electrode terminal lead are left outside of the packaging housing. The pulse energy storage capacitor packaging method and packaging structure can arrange a single pulse energy storage capacitor, can package the plurality of arranged pulse energy storage capacitors, can connect the pulse energy storage capacitor set to other members through the positive electrode terminal lead and the negative electrode terminal lead which are exposed outside, and can fix thepackaging housing through a fixing member. The pulse energy storage capacitor packaging method and packaging structure realize three-dimensional spatial arrangement of the pulse energy storage capacitors, improve a space utilization rate, simplify a fixation mode of the capacitor, make the pulse energy storage capacitor barely be under stress, and greatly improve safety and reliability of operation of an amplifier.

The invention belongs to the field of mechanical automation, and particularly relates to a full-automatic battery changing system for electric vehicles. The full-automatic battery changing system comprises a control system, a positioning platform, an execution system and a battery compartment used for storing batteries; the positioning platform is used for positioning a vehicle which is about to run into a battery changing station; the control system acquires electric vehicle positioning completion information and transmits the information to the execution system; the execution system is used for executing operation for changing batteries of the electric vehicle. The full-automatic battery changing system has the advantages that the full-automatic battery changing system is high in automatic management level and battery changing efficiency when in electric vehicle battery changing procedures, the batteries can be accurately positioned in the battery changing procedures, and the purpose of applying the full-automatic battery changing system to different types of vehicles and different types of batteries can be achieved.

The invention discloses a waterproof and heat-resistant exterior wall coating and a preparation method thereof. The exterior wall coating comprises the following components in parts by weight: 35-38 parts of ethylene-tetrafluoroethylene copolymer, 8-12 parts of hydroxypropyl cellulose, 21-23 parts of oleic acid, 5-7 parts of heptadecanoic acid, 6-8 parts of ethyl acetoacetate, 12-14 parts of diethyl carbonate and 14-17 parts of polyurethane. All the components of the coating can enable the prepared exterior wall coating to have good waterproof and heat-resistant functions by stirring, ultrasonic treatment, shearing and other means.

The invention discloses a low dropout linear regulator with quick transient response and high stability. The low dropout linear regulator comprises a power adjusting pipe, an error amplifier circuit and an ESR resistor. The error amplifier circuit comprises a main operational amplifier circuit and a buffering drive circuit. The low dropout linear regulator further comprises a transient response improving circuit and a compensation network circuit. The low dropout linear regulator has the advantages that a compensation network is provided to guarantee that when load currents change, phase margin doe not change, and stability of the low dropout linear regulator is guaranteed; an induction capacitor is additionally arranged on the compensation network, so that change of poles can be quickly tracked, moment stability can be maintained when load current jump occurs, and oscillation of output voltages is prevented; a transient response improving circuit structure is designed to improve load transient response, it is guaranteed that output of the transient response improving circuit has quick transient response capacity when the load currents of the output end jump, and grain and the phase margin can not change greatly.

The invention discloses a chair easy to pull suitable for the aged. The chair comprises a chair body and idler wheel mechanisms arranged on the bottom of each front leg of the chair body. Each idler wheel mechanism comprises a castor fixing expand tube inserted into the bottom of the corresponding leg in a matched mode, a castor spindle fixedly connected with the castor fixing expand tube, and a semispherical connecting cover arranged at the lower end of the castor spindle in a rotary mode, wherein an outer convex ring is formed on the open edge of the connecting cover, a semispherical rolling cover is arranged in the outer convex ring through a bearing in a rotary mode, and the diameter of the rolling cover is smaller than that of the connecting cover. According to the chair, the idler wheel mechanisms are arranged on the front legs, people can lift the chair back slightly to make the chair move in a rolling mode by means of the idler wheel mechanisms when the chair needs to be pulled, a non-spherical wheel is formed by means of the semispherical connecting cover and the semispherical rolling cover to guarantee that the position does not change and the chair does not slide or swing, and then using safety and comfort are improved.