-
公开(公告)号：US20240381493A1
公开(公告)日：2024-11-14
申请号：US18779862
申请日：2024-07-22
Applicant: WATLOW ELECTRIC MANUFACTURING COMPANY
Inventor： Martin WALLINGER , Julian MICHELSEN
Abstract: A thermal system includes a two-wire heater and a power switch. The power switch is to provide power to the two-wire heater from a power source based on a control signal. The thermal system includes a controller having a sensor circuit configured to measure an electrical characteristic of the two-wire heater. The controller is to calculate a temperature of the thermal system based on a change in the measured electrical characteristic and determine whether the temperature is greater than a temperature setpoint. The controller is to output the control signal based on the determination.
-
公开(公告)号：US20230110307A1
公开(公告)日：2023-04-13
申请号：US17497280
申请日：2021-10-08
Applicant: WATLOW ELECTRIC MANUFACTURING COMPANY
Inventor： Julian MICHELSEN , Martin WALLINGER , Gernot TEUFL
Abstract: An electrical interconnect for use in connecting layers of a multi-layer heater includes a shaped body having a lower end portion and an upper end portion. The lower end portion has a smaller contact area than a contact area of the upper end portion, and the contact area of the lower end portion is proximate a heating layer and the contact area of the upper end portion is proximate a routing layer.
-
公开(公告)号：US20240068708A1
公开(公告)日：2024-02-29
申请号：US17896444
申请日：2022-08-26
Applicant: WATLOW ELECTRIC MANUFACTURING COMPANY
Inventor： Julian MICHELSEN , Todd BROOKE , Terry COLHOUR
CPC classification number: F24H9/00 , F28F13/08 , G01K7/16 , G01K13/02 , H05B3/06 , H05B2203/007 , H05B2203/016 , H05B2203/037
Abstract: A flow-through heater assembly includes a housing and a heater. The housing includes an inlet, an outlet, and a bore extending between the inlet and the outlet. The heater is disposed within the housing and extends between the inlet and the outlet. The heater includes at least one opening proximate the inlet and at least one opening proximate the outlet. The heater defines an anfractuous path from the inlet to the outlet, and the openings in the heater are in fluid communication with the bore of the housing.
-
公开(公告)号：US20200329533A1
公开(公告)日：2020-10-15
申请号：US16844219
申请日：2020-04-09
Applicant: Watlow Electric Manufacturing Company
Inventor： Martin Wallinger , Julian MICHELSEN
Abstract: A temperature limiting device for a thermal system includes a modular unit that is configured to connect to a two-wire heater of the thermal system. More particularly, the modular unit includes a heater interface configured to connect to a two-wire heater of the thermal system, a power interface configured to connect to a power source to receive power; and a controller including a sensor circuit. The sensor circuit is configured to measure an electrical characteristic of the two-wire heater, which includes voltage, current, or a combination thereof. The controller is configured to calculate a temperature of the thermal system based on the measured electrical characteristic and determine whether the temperature is greater than a temperature setpoint.
