US3488475A - Baseboard electric heating apparatus - Google Patents

Baseboard electric heating apparatus Download PDF

Info

Publication number
US3488475A
US3488475A US589309A US3488475DA US3488475A US 3488475 A US3488475 A US 3488475A US 589309 A US589309 A US 589309A US 3488475D A US3488475D A US 3488475DA US 3488475 A US3488475 A US 3488475A
Authority
US
United States
Prior art keywords
convector
tubular
baseboard
heater
oxide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US589309A
Other languages
English (en)
Inventor
Walter Gronwoldt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DEG33319U external-priority patent/DE1934760U/de
Priority claimed from DE1966G0034283 external-priority patent/DE1944442U/de
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3488475A publication Critical patent/US3488475A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/002—Air heaters using electric energy supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/06—Casings, cover lids or ornamental panels, for radiators
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • H05B3/48—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • H05B3/48—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material
    • H05B3/50—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material heating conductor arranged in metal tubes, the radiating surface having heat-conducting fins

Definitions

  • An easily mountable and demountahle baseboard heater comprising a one-piece stepped part for attaching to the base of a wall having a groove at the top and a projecting ridge at the bottom, a U-shaped bracket for connecting the ridge at one side and the bottom of a one-piece cover jacket, wherein the cover jacket has a bent-down upper edge for extending into the groove.
  • the present invention relates generally to electric baseboard heaters, and particularly to improved constructions of the housing and heating elements.
  • a particular embodiment of the present invention cornprises a baseboard heater housing with air slots and convector mounting, and is characterized by a housing having the following features wherein:
  • the part which is to be fastened to the wall consists of one piece, wherein the lower wall-attached portion consists of two bent-away portions offset in parallelism with the lower wall-attached portion having a forwardly projecting ridge where the upper wall-attached portion carries a roof portion bent therefrom at a right angle, and where the upper edge of the latter has a groove recessed in its, both the upper and the lower Wallattached portions having recesses for attaching them to a wall;
  • the carrier or bracket is approximately U-shaped whereby one vertical prong extends from about the upper edge of the mounting piece to the first bent portion, and the other vertical prong is shortened to such an extent that between the prongs the convector is adequately supported, and below the shorter prong there is a supporting piece;
  • the convector is rectangular in form and is so disposed that it can be inserted or removed from the U-shaped carrier piece;
  • the cover jacket comprises a horizontal holding portion which is disposed so that it covers over the roof of the wall-attached part with its depending edge fitting into the groove of the bent roof-forming portion of the wall-attached part, while the lower part of the cover jacket is formed as a vertical wall which has at the foot of it recesses for securing members, and its lower edge is bent around in such a manner that it extends underneath the carrying member, the horizontal and the vertical portions of the cover jacket being connected by an inclined portion with airholes therein.
  • the baseboard heater is attached directly to walls which are already provided with baseboards that extend over the oor covermg.
  • the convector consists of interchangeable plates which are mounted on a tubular body;
  • the electrically heated tubular element has at least one end of its provided with a solid filling of oxidic insulating material which has rendered solid by the introduction of water glass.
  • Baseboard heaters of the present invention usually have a housing with an adjustable air-exit slot through which a heat-exchanging sheet-metal tube is introduced to serve as the heating element.
  • the latter can be heated by circulating warm water or oil, or by electric heating means.
  • the regulation of the adjustable air-exit slots can easily experience a malfunctioning.
  • The' convectors of the prior are baseboard heaters are not easily mounted or dismounted for maintenance and repair.
  • Another object of the present invention is a baseboard heater without adjustable vents.
  • Still another object of the present invention is a baseboard heater having a convector with the heating elements embedded in a pulverulent material.
  • a further object of the invention is an improved seal for the pulverulent material contained in the convector.
  • FIGURE 1 is a transverse cross-section of a baseboard heater with the improved convector of the present invention mounted therein;
  • FIGURE 2 is a transverse cross-section of the new and easily mountable and demountable baseboard heater housing of the present invention
  • FIGURE 3 is the transverse cross-section of FIGURE 2 with the improved convector of the present invention mounted therein;
  • FIGURE 4 shows in perspective a modification of the bracket or convector carrier member shown in FIGURES 2 and 3;
  • FIGURE 5 shows in fragmentary perspective a portion of the improved baseboard heater housing of the present invention with a convector having two parallel tubular heating elements inserted therein;
  • FIGURE 6 shows in fragmentary perspective the improved convector.
  • the difliculties of prior constructions are avoided by positioning the primary heating member in a three-part housing with non-adjustable air inlet and outlet passageways.
  • the tubular electric heating element is embedded in a heat-indifferent pulverulent or granular electrically insulating heat conductive intermediate layer in the convection tube.
  • the core of the outer visible heating elements has positioned in its a copper convector tube.
  • the hollow space inside this tube serves to support the tubular heating element which has a heating coil therein.
  • the vacant space which remains in the copper convector tube after the tubular heating element has been inserted is filled with an electrically insulating oxide, electromagnesia MgO, preferably that of 0.07 to 0.37 mm. granule size. Because of the great fluidity and the high filling density, the vacant space is packed so closely that it has the highest possible heat conductivity. In this manner every possible heat loss is prevented and thereby the greatest possible efficiency is achieved.
  • a two-aperture cap e.g. a Benninger cap
  • the other end of the heating member after being completely filled with the granular electromagnesia, is hermetically sealed by pouring in ordinary water glass. Loss of the granulate from the heater tube with such a closure is rendered impossible.
  • the MgO which is slightly hygroscopic will not absorb moisture and will remain in good condition for a maximum period of time.
  • a particularly unique feature of the present invention is the built-in positioning of the special heating tubes.
  • the heating system is sealed off and, therefore, does not require any tubular conduits.
  • the baseboard heater is characterized by an unusually short heating-up and waiting time.
  • FIGURE 1 of the drawings wherein the rear wall 1 in combination with the slider and holder bracket 2, the damper strip 4 and the cover jacket 5 form the outer portions of the electric baseboard heater.
  • the heat convector 3 includes copper convector tube 6 in which are contained two high yield tubular heating elements 7 with diameters of e.g. 8.4 mm., with soft steel jackets.
  • the heating coil is rated to deliver a maximum surface temperature of 400 C. at the convector tube 6.
  • the heating elements 7 are deeply ernbedded in electromagnesia 8, and by reason of the high heat conductivity deliver their heat without loss to the copper convector tube 6 of the heat convector 3.
  • the electromagnesia has the following chemical composition:
  • the slidable carrier or bracket is generally U- shaped with one prong 24 extending from about the upper edge of ridge 11 to the lower bend 10 of the wall-attached part 1, while the other prong 24 is shortened suicieritly to permit easy removal of the heat convector 3 and is provided with a lower holding portion 16;
  • the convector 3 is rectangular and is adapted to be inserted into or removed from the carrier or bracket 2;
  • the cover jacket 5 comprises a horizontall holding portion 17 adapted to cover the roof 12 of the wallattached part 1 and extend into the groove 13 with its bentdown edge 12, while the lower portion of the jacket 5 forms a vertical cover wall whose lower portion has recesses 19 to receive fastening members and is formed with an inturned lower edge 20 extending around the holding portion 16 of the carrier 2, and Where the horizontal and vertical portions of the jacket 5 are connected by an inclined wall portion 21 with air-exit slots 24.
  • the convector 3 of FIGURE 2 comprises a tubular convector body 6 upon which the lamellae convector plates or fins 26 of the convector 3 are fastened.
  • the tubular convector body 6 is heated by an inserted electric heater element.
  • the baseboard heater housing shown in FIGURE 3 is very similar to the one shown in FIGURE 2, but with the difference that the tubular convector body 6 contains two electrically heated elements 7 and the space between the Mgo Sto Fezoa Cao Nato A1203 B203 Tio EMN 1, EMN 1g, percent 97.60 1.1 0.04 1.2 0.01 0.04 0. 01 t) EMN 2, EMN 2g. percent 96.31 2.0 0.10 1.5 0. 01 0. 07 0.o1 o
  • the specific gravity is 3.56 g./cm.3. heating elements 7 and the tube 6 is filled with a pulveru- The melting point of electromagnesia is about 2800 C. The air which passes across the damper strip 4 should not reach a temperature higher than 60 C.
  • the tubular body is sealed off, at least at the end that has the electric connection, by means of a closure cap having openings therein for electric conductors, while the other end is sealed by solid electric insulation consisting, for example, of a reaction product of magnesium oxide and water glass solution.
  • Another and particularly preferred embodiment of the invention comprises two parallel tubular electric heating elements embedded in the pulverulent oxide of the tubular convector body.
  • magnesium oxide in the form of electromagnesia of granular sizes 0.07 to 0.35 mm.
  • FIGURE 2 shows the new and easily mountable and demountable baseboard heater housing with its air slots and convector mounting comprising the following elements:
  • the construction of the convector of FIGURE 3 consists of a composite unitary structure. Through the pulverulent oxide there is good heat conduction between the tubular body and the electrically heated tubular element, even though the oxide is also a good electrical insulator. Moreover, the intermediate space is effectively sealed off over at least one end of the electrically heated tubular member. For making necessary repairs, it is still possible, without damaging the metallic parts, to replace the electrically heated tubular element.
  • FIGURE 4 shows in perspective a modification of the carrier member or bracket 2 on which the convector 3 is supported.
  • FIGURE 5 shows in fragmentary perspective a portion of the new baseboard heater housing with an inserted convector that is heated by two parallel tubular heating elements.
  • FIGURE 6 shows in fragmentary perspective the tubular convector body 6 with two electrically heated tubular elements 7 therein, and with the intermediate space between the heated elements 7 and the tubular convector body 6 filled with pulverulent oxide 8 which at one end of the electrically heated element 7 is converted into a solid mass of insulation by the introduction of water glass solution into the oxide zone 8 to be solidified.
  • the electric tubular heating elements 7 are held in position by a two-hole closure cap 27 which fits over the tube 6.
  • the individual parts which constitute the new baseboard heater housing can be formed of various materials, as for example sheet metal. Since the heated air from the convector 3 which ows out through the air-vent slots 24 does not generally surpass a temperature of 75 C., the baseboard heater housing can also be formed of a sufficiently heat-stable plastic. Its parts can be adapted in such a way that the installation and servicing is greatly simplified. Since the convector is held in the housing by only a few narrow U-shaped brackets, the cold air which enters at the bottom will be quickly warmed by heat exchange and will pass outwardly through the slo-ts into the room to be warmed. In the preferred combination that is shown FIG- URES 2 to 5, the electric heating elements can be easily replaced.
  • tubular electric heating elemnts are provided with electric connection terminals at each end so that they can be energized by electric current from either end.
  • a baseboard type electric heater adapted for use along the base of a wall, the combination of a rear vertical wall, a bracket member abutting said vertical wall and extending therefrom, a convector mounted on said bracket member and a cover jacket having air outlets therein connecting said vertical wall and adapted to cover said convector, the improvement comprising:
  • said rear vertical wall comprising a lower section and an upper section defining two parallel vertical sections offset by a first bend and a second bend, said lower section defining a forwardly projecting ridge and said upper section having a roof portion extending horizontally from said Wall, a groove in the upper edge of said roof portion and recesses for receiving fasteners in said upper and lower sections;
  • bracket member having a U-shape wherein a iirst prong has a length extending from about the upper edge of said projecting ridge to said first bend, a second prong is foreshortened whereby said convector is removably held, and said bracket member having a projecting holding portion below said second prong;
  • said convector is rectangular in cross-section and is adapted to be mounted and demounted on said U-shaped bracket member;
  • said cover jacket comprises a horizontal holding section having a bent-down edge adapted to cover said roof portion and extend into said groove, and a lower cover jacket section defined by a vertical wall having a lower-turned-in edge adapted to engage said holding portion and an inclined air exit section connecting said horizontal holding section and having air ports therein defining said air outlets.
  • said convector comprises interchangeable plates mounted on a tubular member
  • tubular member has a tubular electric heating element therein;
  • one end of said tubular electric heating element has a closure defined by the reaction product of water glass and said oxide.
  • tubular member has means for electrically connecting at one end comprising a closure cap adapted for the passage of electric conductors.
  • said insulating oxide is selected from the group consisting of aluminum oxide, beryllium oxide, zirconium oxide and magnesium oxide.
  • heating element has high output bodies deiined by soft steel jackets having a diameter of about 8.4 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Resistance Heating (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
US589309A 1965-10-30 1966-10-25 Baseboard electric heating apparatus Expired - Lifetime US3488475A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DEG33319U DE1934760U (de) 1965-10-30 1965-10-30 Elektrische fussleistenheizung.
DE1966G0034283 DE1944442U (de) 1966-03-17 1966-03-17 Leicht montierbares und demontierbares fussleistenheizungsgehaeuse.
DEG0046320 1966-03-17

Publications (1)

Publication Number Publication Date
US3488475A true US3488475A (en) 1970-01-06

Family

ID=27210597

Family Applications (1)

Application Number Title Priority Date Filing Date
US589309A Expired - Lifetime US3488475A (en) 1965-10-30 1966-10-25 Baseboard electric heating apparatus

Country Status (9)

Country Link
US (1) US3488475A (en:Method)
JP (1) JPS4820272B1 (en:Method)
BE (1) BE688973A (en:Method)
CH (1) CH471352A (en:Method)
DE (1) DE1579896A1 (en:Method)
ES (1) ES332910A1 (en:Method)
FR (1) FR1504055A (en:Method)
GB (1) GB1138375A (en:Method)
NL (1) NL6614741A (en:Method)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3621204A (en) * 1969-04-29 1971-11-16 Dynamit Nobel Ag Electrical heating element with fused magnesia insulation
US4558209A (en) * 1984-03-08 1985-12-10 Joachim Hess Low power electrical heating device
USD715416S1 (en) * 2014-01-21 2014-10-14 Plastx USA Corp. Plastic baseboard heater device
US20180058941A1 (en) * 2016-08-25 2018-03-01 Johnson Controls Technology Company Design for mitigation of fluid ingress via convection venting on electronic devices
US20180080725A1 (en) * 2010-09-08 2018-03-22 Creative Hydronics International Baseboard Heater Radiator Cover
USD844570S1 (en) 2017-01-12 2019-04-02 Johnson Controls Technology Company Building automation device
US10612811B2 (en) 2016-08-25 2020-04-07 Johnson Controls Technology Company Housing for electronic devices including air outlet with fluid ingress mitigation
CN111829049A (zh) * 2019-04-18 2020-10-27 李胜利 曲面高温辐射式电热器
US20230175700A1 (en) * 2021-12-02 2023-06-08 Whirlpool Corporation Bottom vent trim for oven

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4097720A (en) * 1976-02-11 1978-06-27 The Vulcan Radiator Company Baseboard heater
FR2396926A1 (fr) * 1977-07-07 1979-02-02 Applic Thermo Electr Appareil de chauffage insonorise
GB2117505B (en) * 1982-03-27 1985-07-10 Microband Systems Limited Improvements relating to heating systems
DE8914754U1 (de) * 1989-12-15 1990-04-12 PAN Planungsgruppe Alternativ-Technologische Nutzungsformen GmbH & Co. KG, 2000 Hamburg Heizungsmodul
EP2796798B1 (fr) 2013-04-26 2017-10-04 ECO-MATIC (Société à responsabilité limitée) Plinthe chauffante hydraulique et/ou électrique
GB2516956A (en) * 2013-08-08 2015-02-11 Quinn Radiators Ltd A Cover
CN107289501B (zh) * 2017-08-08 2023-03-14 合肥恒暖暖通设备有限公司 一种墙围暖气片

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1432064A (en) * 1917-06-27 1922-10-17 Jr William S Hadaway Electric heater element
US2063642A (en) * 1933-09-07 1936-12-08 Edison General Elec Appliance Electric heating unit
US2815431A (en) * 1954-02-15 1957-12-03 Albert A Paley Convection heating unit
FR1328725A (fr) * 1962-07-12 1963-05-31 Gen Automatic Products Corp Radiateur de plinthe
US3266563A (en) * 1964-06-25 1966-08-16 Sterling Radiator Co Inc Plastic slide shoe for fin tube radiator
US3340382A (en) * 1965-05-03 1967-09-05 Arc O Vec Inc Multi-cell electrical heater
US3371192A (en) * 1965-10-22 1968-02-27 Arthur L. Rosenel Electric aquarium heater

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1432064A (en) * 1917-06-27 1922-10-17 Jr William S Hadaway Electric heater element
US2063642A (en) * 1933-09-07 1936-12-08 Edison General Elec Appliance Electric heating unit
US2815431A (en) * 1954-02-15 1957-12-03 Albert A Paley Convection heating unit
FR1328725A (fr) * 1962-07-12 1963-05-31 Gen Automatic Products Corp Radiateur de plinthe
US3266563A (en) * 1964-06-25 1966-08-16 Sterling Radiator Co Inc Plastic slide shoe for fin tube radiator
US3340382A (en) * 1965-05-03 1967-09-05 Arc O Vec Inc Multi-cell electrical heater
US3371192A (en) * 1965-10-22 1968-02-27 Arthur L. Rosenel Electric aquarium heater

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3621204A (en) * 1969-04-29 1971-11-16 Dynamit Nobel Ag Electrical heating element with fused magnesia insulation
US4558209A (en) * 1984-03-08 1985-12-10 Joachim Hess Low power electrical heating device
US20180080725A1 (en) * 2010-09-08 2018-03-22 Creative Hydronics International Baseboard Heater Radiator Cover
USD715416S1 (en) * 2014-01-21 2014-10-14 Plastx USA Corp. Plastic baseboard heater device
US10612811B2 (en) 2016-08-25 2020-04-07 Johnson Controls Technology Company Housing for electronic devices including air outlet with fluid ingress mitigation
US20180058941A1 (en) * 2016-08-25 2018-03-01 Johnson Controls Technology Company Design for mitigation of fluid ingress via convection venting on electronic devices
US11085832B2 (en) * 2016-08-25 2021-08-10 Johnson Controls Technology Company Mitigation of fluid ingress via convection venting on electronic devices
USD844570S1 (en) 2017-01-12 2019-04-02 Johnson Controls Technology Company Building automation device
USD908099S1 (en) 2017-01-12 2021-01-19 Johnson Controls Technology Company Building automation device
USD949803S1 (en) 2017-01-12 2022-04-26 Johnson Controls Tyco IP Holdings LLP Building automation device
USD1042365S1 (en) 2017-01-12 2024-09-17 Tyco Fire & Security Gmbh Building automation device
CN111829049A (zh) * 2019-04-18 2020-10-27 李胜利 曲面高温辐射式电热器
US20230175700A1 (en) * 2021-12-02 2023-06-08 Whirlpool Corporation Bottom vent trim for oven
US12366364B2 (en) * 2021-12-02 2025-07-22 Whirlpool Corporation Bottom vent trim for oven

Also Published As

Publication number Publication date
FR1504055A (fr) 1967-12-01
GB1138375A (en) 1969-01-01
JPS4820272B1 (en:Method) 1973-06-20
BE688973A (en:Method) 1967-03-31
ES332910A1 (es) 1967-10-01
CH471352A (de) 1969-04-15
NL6614741A (en:Method) 1967-05-02
DE1579896A1 (de) 1970-08-27

Similar Documents

Publication Publication Date Title
US3488475A (en) Baseboard electric heating apparatus
US3310652A (en) Heating apparatus
US3614386A (en) Electric water heater
CN102341658A (zh) 便携式加热器
US3448243A (en) Baseboard heater
US3371192A (en) Electric aquarium heater
CN2327142Y (zh) 匀热悬丝式红外定向辐射器
US3688084A (en) Electric broiler heating unit
GB1519036A (en) Electrical convection heating radiator
CN215419052U (zh) 一种恒温控制高低压配电开关柜
IT8267607A0 (it) Contenitore per il montaggio di uno scambiatore di calore in particolare per un installazione di riscaldamento dell abitacolo di un automobile
US3551642A (en) Baseboard heater
US2861167A (en) Reversible electric fin-type baseboard heater
GB2255262A (en) Rigid plastics electric heater panel
US2980785A (en) Electric heating
US5266777A (en) Dental furnace with metallic inner housing, plastic outer housing, and air space therebetween
JP7235237B2 (ja) 金型加熱装置
GB2404242A (en) Combined linen drying and room heating device
US3071677A (en) Baseboard electric heating apparatus
RU2059167C1 (ru) Электроконвектор
US2882381A (en) Electric heater
CN211952947U (zh) 一种电加热供暖设备
US3590214A (en) Paint softener
CN218884077U (zh) 一种快装取暖器
CN207763040U (zh) 基于纳米硅导加热的电暖器