Manufacturing method of power element, power element and expansion valve using power element

• Main Authors: OKUTSU KINYA, KAMATA NAOKI, MATSUDA RYO
• Format: Patent
• Language: Chinese; English
• Published: 07.03.2023
• Subjects: ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING,OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODSSPACES OF VEHICLES; BLASTING; CLADDING OR PLATING BY SOLDERING OR WELDING; COMBINED HEATING AND REFRIGERATION SYSTEMS; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; HEAT PUMP SYSTEMS; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MACHINE TOOLS; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; SOLDERING OR UNSOLDERING; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS; WELDING; WORKING BY LASER BEAM

The invention provides a manufacturing method of a power element, a power element and an expansion valve using the power element, wherein the number of parts is reduced, the weight is reduced, and the power element is easy to manufacture. A method for manufacturing a power element including an upper cover member, a receiving member, and a diaphragm sandwiched between the upper cover member and the receiving member includes: a step of filling a working gas between the upper cover member and the diaphragm through a hole or a slit formed in the upper cover member; and a step for heating and melting a blank constituting the upper cover member in the vicinity of the hole or the slit, and filling the hole or the slit with the melted blank. 本发明提供一种实现部件数量的削减、轻量化，并且制造容易的动力元件的制造方法、动力元件及使用该动力元件的膨胀阀。包含上盖部件、承接部件以及夹在所述上盖部件与所述承接部件之间的膜片的动力元件的制造方法具有如下工序：经由形成于所述上盖部件的孔或狭缝向所述上盖部件与所述膜片之间填充工作气体的工序；以及将构成所述孔或所述狭缝的附近的所述上盖部件的坯料加热融化，并通过融化后的坯料填埋所述孔或所述狭缝的工序。