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1. WO1999009789 - WATER HEATER WITH PROPORTIONAL BAND TEMPERATURE CONTROL FOR IMPROVED THERMAL EFFICIENCY

Publication Number WO/1999/009789
Publication Date 25.02.1999
International Application No. PCT/US1998/016175
International Filing Date 05.08.1998
Chapter 2 Demand Filed 03.03.1999
IPC
H05B 1/02 2006.1
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
1Details of electric heating devices
02Automatic switching arrangements specially adapted to heating apparatus
H05B 3/82 2006.1
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
3Ohmic-resistance heating
78Heating arrangements specially adapted for immersion heating
82Fixedly-mounted immersion heaters
CPC
H05B 1/02
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
1Details of electric heating devices
02Automatic switching arrangements specially adapted to apparatus ; ; Control of heating devices;
H05B 1/0213
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
1Details of electric heating devices
02Automatic switching arrangements specially adapted to apparatus ; ; Control of heating devices;
0202Switches
0213using bimetallic elements
H05B 3/82
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
3Ohmic-resistance heating
78Heating arrangements specially adapted for immersion heating
82Fixedly-mounted immersion heaters
Applicants
  • AOS HOLDING COMPANY [US]/[US]
Inventors
  • BRADENBAUGH, Kenneth, A.
Agents
  • PRICE, David, R.
Priority Data
08/914,63819.08.1997US
09/118,72017.07.1998US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) WATER HEATER WITH PROPORTIONAL BAND TEMPERATURE CONTROL FOR IMPROVED THERMAL EFFICIENCY
(FR) CHAUFFE-EAU A REGULATION DE TEMPERATURE A BANDES PROPORTIONNELLES PERMETTANT D'OBTENIR UN RENDEMENT THERMIQUE AMELIORE
Abstract
(EN) A water heater having a water tank and a electric resistance heating element (125) extending into the water tank for heating water in the tank. The water heater includes a proportional band temperature controller (100) for conducting electric power to the electric resistance heating element (125) in bursts. Each burst of electric power is followed by a period during which the temperature controller does not conduct power to the electric resistance heating element (125). In one embodiment, each burst of electrical power lasts for about 95 % or less of a cycle comprised of one burst of electric power followed by the period during which the temperature controller (100) does not conduct electric power.
(FR) L'invention concerne un chauffe-eau présentant un réservoir d'eau et un élément chauffant (125) à résistance électrique s'étendant jusque dans le réservoir d'eau afin de chauffer l'eau contenue dans le réservoir. Le chauffe-eau comprend un régulateur (100) de température à bandes proportionnelles destiné à conduire l'énergie électrique par salves dans l'élément chauffant (125) à résistance électrique. Chaque salve d'énergie électrique est suivie d'une période pendant laquelle le régulateur de température ne conduit pas l'énergie électrique à l'élément chauffant (125) à résistance électrique. Dans un mode de réalisation, chaque salve d'énergie électrique dure environ 95 % au moins d'un cycle composé d'une salve d'énergie électrique suivi d'une durée pendant laquelle le régulateur (100) de température ne conduit pas l'énergie électrique.
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