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公开(公告)号：US11852601B2
公开(公告)日：2023-12-26
申请号：US17426585
申请日：2019-12-13
Applicant: KYUNGDONG NAVIEN CO., LTD.
Inventor： Tae Seong Kwon , Ji Hyung Yoon , Jong Kil Kim
IPC: G01N27/07
CPC classification number: G01N27/07
Abstract: According to the present invention, an electrode terminal assembly for a liquid quality meter apparatus for measuring liquid quality on the basis of the electrical resistance of a liquid to be measured comprises: a pair of electrode terminals comprising a body, which contacts the liquid being measured when liquid quality is measured and has an overall rod shape, and a protruding step formed at a predetermined portion between the opposite ends of the body; and a fixing body comprising a pair of electrode through-holes through which the pair of electrode terminals pass. In the electrode terminal assembly having the above-described structure, each of the pair of electrode terminals is arranged such that, when the electrode terminals are inserted into the electrode through-holes of the fixing body by a predetermined length, the protruding step is caught by the fixing body so that the electrode terminals are no longer inserted.
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公开(公告)号：US20210063051A1
公开(公告)日：2021-03-04
申请号：US15930741
申请日：2020-05-13
Applicant: KYUNGDONG NAVIEN CO., LTD.
Inventor： Tae Seong Kwon , Soo Hyun Yoon , In Chul Jeong
Abstract: Provided are a heat exchange method of tap water using a heat exchanger, and the heat exchanger. The content of residual chlorine in the tap water is about 2 ppm or more, the heat exchanger comprises a plurality of heat plates, which comprise ferritic stainless steel, and copper brazing configured to couple the heat plates, and the ferritic stainless steel contains less than about 0.5 wt % of nickel, about 0.1 wt % to about 2 wt % of copper, and about 0.03 wt % or less of carbon.
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公开(公告)号：US20220099612A1
公开(公告)日：2022-03-31
申请号：US17426585
申请日：2019-12-13
Applicant: KYUNGDONG NAVIEN CO., LTD.
Inventor： Tae Seong Kwon , Ji Hyung Yoon , Jong Kil Kim
IPC: G01N27/07
Abstract: According to the present invention, an electrode terminal assembly for a liquid quality meter apparatus for measuring liquid quality on the basis of the electrical resistance of a liquid to be measured comprises: a pair of electrode terminals comprising a body, which contacts the liquid being measured when liquid quality is measured and has an overall rod shape, and a protruding step formed at a predetermined portion between the opposite ends of the body; and a fixing body comprising a pair of electrode through-holes through which the pair of electrode terminals pass. In the electrode terminal assembly having the above-described structure, each of the pair of electrode terminals is arranged such that, when the electrode terminals are inserted into the electrode through-holes of the fixing body by a predetermined length, the protruding step is caught by the fixing body so that the electrode terminals are no longer inserted.
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