9 results about "Serpentine channel" patented technology

This invention discloses a nested serpentine channel liquid cooling plate and its battery thermal management system, belonging to the field of energy storage battery thermal management technology. The liquid cooling plate has a double-inlet, double-outlet serpentine flow channel inside, forming two parallel coolant flow paths to shorten the heat transfer path and improve temperature uniformity. A battery thermal management system includes a battery module composed of multiple square batteries and at least one liquid cooling plate, which is nested between the battery cells. Preferably, for a module composed of 20 square batteries, only three liquid cooling plates are used, respectively arranged on both sides and in the middle of the module, achieving a compact configuration of "one cooling plate cooling two battery cells". More preferably, the liquid cooling plate adopts an inlet / outlet direction of left-up-right-down and right-up-left-down, with a coolant mass flow rate of 1 g / s and an inlet temperature of 25°C. Experimental results show that at an ambient temperature of 45℃ and a discharge rate of 2C, the battery module's highest temperature is 28.75℃, the maximum temperature difference is 2.17℃, the voltage drop is 229.31Pa, and the comprehensive performance evaluation index PEC reaches 4.02. This invention significantly reduces system complexity, manufacturing costs, and flow resistance while ensuring efficient heat dissipation and excellent temperature uniformity, making it suitable for large-scale lithium iron phosphate energy storage modules.

The detachable antibacterial air filter element comprises a frame body and an air filter element body, lower snakelike strips are installed on the two sides of the interior of the frame body in the length direction, bottom rods connected with the lower snakelike strips are installed on the two sides of the interior of the frame body in the width direction, upper snakelike strips are arranged above the lower snakelike strips, and the lower snakelike strips are connected with the bottom rods. Top rods connected with the upper snakelike strips are arranged above the bottom rods, snakelike channels are formed between the upper snakelike strips and the lower snakelike strips, clamping channels are formed between the top rods and the bottom rods, the air filter element body is arranged in the frame body, and the two sides of the air filter element body in the length direction are inserted into the snakelike channels; and the upper snakelike strip and the lower snakelike strip are used for clamping and fixing. The air filter element is simple in structure, the sealing performance of the folding positions of the air filter element body can be guaranteed through clamping of the upper snakelike strip and the lower snakelike strip, the folding positions do not make contact with one another, all the folding positions are straightly arranged, it is avoided that air entering is affected due to the fact that the folding positions are attached or drawn close, and glue is not needed.

The present application discloses a slow-wave plate structure, comprising a waveguide radiation body, wherein the front end face of the waveguide radiation body is provided with a serpentine slow-wave groove, and one end of the serpentine slow-wave groove is provided with a feed signal end; a serpentine channel is formed in the serpentine slow-wave groove, the serpentine channel is connected to the feed signal end, the serpentine channel comprises a plurality of straight waveguide sections and connecting waveguide sections, a gap portion is present between two adjacent straight waveguide sections, and the two adjacent straight waveguide sections are connected by means of one connecting waveguide section; and the plurality of straight waveguide sections are provided with waveguide radiation gaps at intervals, or the waveguide radiation gaps are respectively provided in the plurality of straight waveguide sections. The present application has the advantages of simple structure, low cost, good radiation effect, wide application range, etc.

The invention provides a cascade viscoelastic micro-fluidic chip and a method for preparing, sorting and enriching circulating tumor cells. The cascade viscoelastic micro-fluidic chip comprises a cell sorting module, a transition section and a cell concentration module. The cell sorting module is composed of an inlet I, an inlet II, an annular bifurcated branch, a straight channel section I, an amplification section, a serpentine channel I and an outlet I; the cell concentration module is composed of a second straight channel section, a first bifurcation structure, a second serpentine channel, a second outlet, a third straight channel section, a second bifurcation structure, a third serpentine channel, a third outlet, a fourth straight channel section, a third bifurcation structure, a fourth outlet and a fifth outlet. The cell sorting module and the cell concentration module are cascaded through a transition section. The invention breaks through the bottleneck that the traditional sorting technology can be compatible with downstream biological analysis only by intervening manual centrifugation and other operations at the rear end, and can provide powerful technical support for developing a tumor liquid biopsy integrated system.

Disclosed in the present invention are a waveguide slot antenna and a control method therefor. The antenna comprises a feed port layer, a slow-wave line layer, and a radiation slot layer which are stacked in sequence; the feed port layer is provided with a feed port for inputting electromagnetic waves or outputting electromagnetic waves; one end face of the slow-wave line layer facing the feed port layer is provided with a serpentine slow-wave cavity, one end of the serpentine slow-wave cavity is provided with a feed signal end, and the feed signal end is correspondingly connected to the feed port; a plurality of waveguide radiation slots are arranged at intervals in a serpentine channel of the serpentine slow-wave cavity; and a plurality of radiation cavity units having one-to-one correspondence to the waveguide radiation slots are arranged at intervals on one end face of the radiation slot layer facing the slow-wave line layer, a plurality of radiation slots are arranged at intervals in each radiation cavity unit, and one end of each radiation cavity unit is provided with a signal connection end correspondingly coupled to the waveguide radiation slot. The present invention can increase the antenna scanning angle, thereby meeting application scenarios requiring a large antenna scanning range.

A redox flow battery includes at least one flow field including a plurality of serpentine channels to communicate electrolyte. Each of the serpentine channels define an inlet end, an outlet end, and a flow path fluidly connecting the inlet end with the outlet end. The serpentine channels are arranged in a parallel flow configuration.

The invention discloses a dual-channel snakelike cold plate coupled phase change material battery thermal management system, which comprises a plurality of batteries, a dual-channel snakelike liquid cooling plate and a phase change material, two snakelike channels are arranged in the liquid cooling plate, and the flowing directions of fluids in the two snakelike channels are opposite; a secondary flow channel is arranged between every two adjacent straight flow channels of the same serpentine channel, the tops or the bottoms of the batteries are tightly attached to the liquid cooling plate, the batteries are arranged into a plurality of rows one by one in the direction of the straight flow channels in the liquid cooling plate, a gap between every two adjacent batteries in each row is filled with a phase change material, and the thickness of the phase change material between every two adjacent batteries is non-uniform. The dual-channel snakelike cold plate coupled phase change material battery thermal management system has relatively low battery pack temperature difference and relatively small cold plate inlet and outlet pressure drop at the same time.

The application relates to the field of mechanical manufacturing, and discloses an automatic conveying tool for bearing production, which comprises a support frame, the top end of the support frame is provided with a fixed plate, the two sides of the fixed plate are provided with conveyors, the two sides of the top end of the fixed plate are provided with work platforms, the one side of each of the two work platforms is provided with a side frame, two blanking assemblies are arranged on the surfaces of the two work platforms respectively, are used for receiving input bearings and realize switching conveying to the two conveyors, the blanking assembly comprises a material conveying shell, the material conveying shell is fixedly installed on the surface of the work platform, a serpentine channel is arranged in the material conveying shell, and a feeding port is arranged at the top end of the serpentine channel. The flexible shunting of the conveying line is realized through the overturning of the flow guide plate, the blockage problem is solved by means of the anti-skid air holes and vibration knocking, the conveying stability and the statistical convenience are guaranteed by utilizing the buffer of the poking strip and the photoelectric sensor counting, and the production flexibility and efficiency are improved.

A redox flow battery includes at least one flow field including a plurality of serpentine channels to communicate electrolyte. Each of the serpentine channels define an inlet end, an outlet end, and a flow path fluidly connecting the inlet end with the outlet end. The serpentine channels are arranged in a parallel flow configuration.