5results about How to "Simple cooling structure" patented technology

This invention discloses an azeotropic phase change cooling rotor assembly, a Roots compressor, and a vacuum pump. The rotor assembly includes a main rotor with circumferentially shaped through-holes and an axially oriented internal through-hole on the rotor shaft. A first and a second auxiliary rotor are mounted at both ends of the main rotor. Rotor sealing plates are arranged on the inner sides of the two auxiliary rotors to seal the shaped through-holes and form a first azeotropic flow region. One end of the rotor shaft is connected to a drive motor, and the other end connects to a swirl cooling pipe with swirl fins on its outer wall, forming a second azeotropic flow region through end sealing. The first and second azeotropic flow regions are filled with an azeotropic phase change cooling medium. This invention is based on the azeotropic phase change heat transfer principle and combines a swirl cooling structure to achieve efficient heat dissipation. The overall structure is simple and compact, eliminating the need for complex cooling equipment, effectively suppressing rotor temperature rise during operation, and avoiding rotor jamming caused by high-temperature thermal expansion.

The invention discloses a passive auxiliary soft switching power amplifier based on hybrid ZVS (Zero Voltage Switching) / ZCS (Zero Voltage Switching). The passive auxiliary soft switching power amplifier comprises a double-direct-current voltage module, a double-resonant capacitor and resonant inductor passive soft switching network, a midpoint double-path parallel bridge arm, a double-switching tube high-frequency main power output bridge arm, a double-parallel auxiliary capacitor and an LC filtering output network. The passive auxiliary device adopted by the invention is simple, an additional auxiliary switch tube and a driving module are not needed, and the control complexity is greatly reduced; the design that the resonant inductor is connected in series with the midpoint bridge arm avoids the direct connection risk of the bridge arm fundamentally, dead time does not need to be set, and the operation reliability is improved; meanwhile, a hardware condition is created for realizing hybrid ZVS / ZCS for the full-switching tube, so that the switching loss is reduced, the heat loss of the whole machine is reduced due to the low-loss characteristic of the passive network, the heat dissipation design can be simplified, and the service life of the device can be prolonged; and the network structure is simple, small in size and easy to integrate.

This invention discloses a power battery module based on a PCM heat absorber plate, comprising a battery pack consisting of several cylindrical batteries arranged in an array; a PCM heat absorber plate, the interior of which is filled with a thermally conductive porous structure and paraffin phase change material, which absorbs heat through melting of the phase change material to reduce battery temperature; the PCM heat absorber plate is provided with several sleeve structures, the sleeves being connected front and rear along the air-cooling flow direction via sleeve connecting plates, and the cylindrical batteries being mounted on the PCM heat absorber plate through the sleeve structures; heating strips, located at the bottom of the PCM heat absorber plate and perforated, fitting around the sleeves, used to heat the battery pack at low temperatures; and a cooling fan, located at the head or tail of the PCM heat absorber plate, used for air-cooling heat dissipation of the battery pack and the PCM heat absorber plate. This invention, using a PCM heat absorber plate, can enhance the thermal conductivity and heat absorption capacity between batteries, thereby reducing local hot spots and temperature differences between batteries, achieving efficient thermal management.

This invention discloses an electrically driven, buffered, traveling device for a beam-moving machine, belonging to the technical field of beam-moving machines. It includes a balance beam, mounting seats fixed to both sides of the balance beam, and traveling wheels. This invention externally mounts the drive motor on the top of the lower support, using external heat dissipation for cooling, and is equipped with a pulse-blowing dust removal system. This retains the advantages of external heat dissipation—simple structure, high heat exchange efficiency, and no need for a high-energy-consuming independent refrigeration system—while also utilizing the linkage design between the air supply mechanism and the traveling buffer action of the beam-moving machine to provide a non-powered air source for pulse-blowing. Combined with a lifting mechanism that drives the pulse air pipe to reciprocate, it achieves pulse-type dust removal from the motor surface without dead angles. The entire process requires no additional power consumption or manual cleaning, solving the problem of reduced heat dissipation efficiency caused by dust accumulation on the external motor. This ensures the stability of motor heat dissipation while reducing equipment energy consumption and maintenance costs, and improving operational reliability.

The utility model relates to the technical field of energy storage batteries, in particular to an energy storage battery heat dissipation structure which comprises a shell, a liquid inlet pipe is fixedly connected to one side of the shell, a liquid outlet pipe is fixedly connected to the other side of the shell, a sealing clamping seat is arranged on the inner wall of the shell, a battery module heat exchange assembly is arranged in the shell, and the battery module heat exchange assembly is arranged in the shell. A heat dissipation assembly is arranged on the upper surface of the shell and comprises a sealing top cover, the bottom end of the sealing top cover is movably connected to the top of the shell in a clamped mode, and a connecting bolt is connected between the sealing top cover and the upper surface of the shell in a threaded mode. The energy storage battery is simple in structure and has an efficient heat dissipation structure with the synergistic effect of liquid cooling and air cooling, the heat dissipation area and the heat exchange efficiency are increased, heat generated by the battery can be taken away more quickly, the heat dissipation performance of the energy storage battery is improved, and the energy storage battery is very practical.