Patent
Thermal mass flow meter and mass flow control device
TLDR
In this paper, the welding terminals that function as input/output terminals in a heater element in a thermal mass flow meter were used to improve the reliability of electrical connections made by spot welding.Abstract:
The purpose of the present invention is, with regard to welding terminals that function as input/output terminals in a heater element in a thermal mass flow meter, to improve the reliability of electrical connections made by spot welding between the welding terminals and terminal parts of a heat-generating resistance line constituting a heater element and to effectively prevent the adhesion of the welding terminals to electrodes of a spot welder. The material constituting the welding terminals is a metal or alloy with a melting point having a temperature differential relative to the melting point of the heat-generating resistance line of no greater than 100oC, and one or more covering layers are provided on the surface of the welding terminals. It is preferable for the covering layers to comprise a base covering layer formed from nickel and a surface covering layer formed from gold.read more
Citations
More filters
Patent
Fluid transportation measuring device
TL;DR: In this paper, a fluid transportation measuring device, comprising a heat conducting frame and a pair of vertical brackets with laterally opened buckle slots, is presented, which can reduce the null shift, improve the anti-disturbing ability, reduce the sensitivity to the installing position and realize the fluid transportation measurement with high precision and high response.
Patent
Thermal temperature difference type flow sensor based on MEMS technology and manufacturing method thereof
TL;DR: In this paper, a thermal temperature difference type flow sensor based on MEMS technology and a manufacturing method thereof is presented, which consists of heat sensitive elements, heat-conducting silicone grease, a thermal insulation separating plate, a heating wire, a high-temperature-resistant tube; a wire layer, a mounting layer and a fluid passage are disposed on the center of the high temperature temperature resistant tube; the heating wire is arranged on the lower surface of the mounting layer.
References
More filters
Patent
Mass flowmeter with hermetically sealed housing
Kiyoshi Satoh,Noriyuki Kimura +1 more
TL;DR: In this article, a mass flow meter includes a housing body having a fluid passageway extending therethrough with a capillary tube communicating with the fluid passing through it, which is connected through a pair of metallic sleeves mounted on a base member which in turn is fastened to the housing body.
Patent
Manufacture of airtight terminal
TL;DR: In this paper, the authors proposed a method for forming the base Ni plated layer as well as to prevent the occurence of cracks for the titled terminal by a method wherein electric Ni plating is performed on an outer metal ring and a lead wire having the linear expansion coefficient of 75X 10 / deg.C.
Patent
Thermal type mass flowmeter
Akira Wachi,Hayashi Minehisa +1 more
TL;DR: In this paper, a sensor pipe is wound with heaters 5 and 6 and housed into a polyimide material with an inner diameter of less than 4mm to prevent the case from being vacuum.
Patent
Mass flow rate sensor
TL;DR: In this article, a mass flow rate sensor is provided with a closed end holes 53 housing an isothermal factor matching resistor 52 in an upper side case 4 which is a part of a housing.
Patent
Conductive terminal welding method and conductive terminal structure
Akihiko Nishioka,Takeshi Yasuda +1 more
TL;DR: In this article, the first conductive terminal made of a tinned flat copper plate is molded such that a step portion is formed at a position spaced away from a tip end position of the first terminal and a projection is formed from the tip end to the step portion.