Abstract:
PURPOSE: A brushless motor stator is provided to enable a core to be inserted into a coil accommodating space easily by forming a broad guide slit for the coil to pass through. CONSTITUTION: A stator core(10) comprises a plurality of teeth portions(21) arranged to have alternating magnetism. The stator core comprises an inner stator core(20) and an outer stator core. The outer stator core is shaped like a hollowed cylinder which is opened on top and bottom. An insulator(100) insulates the gap between the coil and the stator core.
Abstract:
PURPOSE: An enclosed compressor is provided to increase the torque of a rotor with a stator simply fixed to a journal bearing using a fixing fin. CONSTITUTION: An enclosed compressor comprises a compression unit(1), a motor(2), a rotary shaft(3), and a journal bearing(40). The compression unit compresses refrigerant. The motor supplies compression power. The rotary shaft transfers the power of the motor to the compression unit. The journal bearing rotatably supports the rotary shaft. The motor comprises a stator(20) and a rotor(30). The stator is fixed outside the journal bearing. The rotor comprises the body(31) formed outside the stator and is rotatably installed. A fixing pin for fixing the stator is coupled between the stator and the journal bearing.
Abstract:
PURPOSE: A nanoparticle is provided to have an excellent electric charge mobility and photoluminescence efficiency and control an oxidation state and reducing condition of the nanoparticle, and a surface dipole and energy band level by including an inorganic center and an organic-inorganic hybrid ligand. CONSTITUTION: A nanoparticle (10) comprises an inorganic center (11) an organic-inorganic hybrid ligand which is bonded to the inorganic center. The organic-inorganic hybrid ligand comprises 0.01-100 mole of an organic ligand (13) per 1 mole of an inorganic ligand (12). The inorganic center has a single-layer structure, a dual structure of a core/shell, or the triple structure of a core/first shell/second shell. A manufacturing method of the nanoparticle comprises the following steps: a solution of the nanoparticle which includes the organic ligand or the inorganic ligand is manufactured; a part of the organic ligand or the inorganic ligand is replaced with the inorganic ligand or the organic ligand. The nanoparticle is a quantum dot, a nanowire, a nanorod, a nanoplate or a nanosheet form.
Abstract:
본 발명은 밀폐형 압축기에 관한 것으로, 이러한 본 발명의 목적은 토출냉매의 토출경로를 개선하여 토출냉매의 맥동을 보다 효과적으로 저감시킬 수 있도록 마련된 밀폐형 압축기를 제공하는 것이다. 이를 위해 본 발명에 따른 밀폐형 압축기는 프레임과, 상기 프레임 일측에 압축실을 형성하도록 마련된 실린더와, 상기 압축실을 밀폐시키도록 상기 실린더에 결합되며 상기 압축실에서 토출되는 냉매를 전달받기 위한 냉매토출실을 구비하는 실린더헤드와, 상기 냉매토출실을 거친 토출냉매의 압력맥동을 저감시키도록 상기 프레임 타측에 마련된 토출챔버와, 상기 냉매토출실과 상기 토출챔버 사이를 연결하도록 상기 프레임 내부에 마련된 토출안내유로와, 상기 토출챔버를 거친 냉매를 상기 밀폐용기 외부로 안내하도록 입구단이 상기 토출챔버에 연결된 토출관을 구비하며, 상기 토출챔버 내부에는 입구단이 상기 토출안내유로의 출구단에 연결되고 출구단이 상기 토출관의 입구단과 이격된 연장튜브가 마련되고, 상기 연장튜브의 적어도 일부구 간은 밴딩되도록 마련된다.
Abstract:
A hermetic compressor is provided to reduce the pulsation of discharged refrigerant effectively by improving the discharge path of the refrigerant. A hermetic compressor includes an extension tube(80) provided in a discharge chamber(50). The extension tube comprises an inlet end(81) connected to an outlet end(42a) of a discharge guide channel(42), and an outlet end(82) apart from an inlet end(12a) of a discharge tube(12). At least a part of the extension tube is bent in a coil shape.
Abstract:
A hermetic compressor is provided to prevent an increasing of suction load pressed to a driving unit and compression unit and to prevent that liquid refrigerant is introduced into the suction muffler to a compression chamber at the initial starting or restarting time of the compressor. A hermetic compressor includes a pressure control unit mounted at a side of a suction muffler. The pressure control unit has a body part(61) formed with an inlet and a hole(81), a refrigerant guide pipe extended into the body part by predetermined length for guiding the refrigerant, which is guided into the body part, into a compression unit, an opening/closing element(82) coupled at a side of the hole by a hinge(84) for opening or closing the hole by rotational motion, and an elastic element(83) such as a twist coil spring for supporting the opening/closing element elastically in the closing direction of the hole.