WO2002074224A1 - Method for heating of sauna oven and a sauna oven according to the method - Google Patents

Method for heating of sauna oven and a sauna oven according to the method Download PDF

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Publication number
WO2002074224A1
WO2002074224A1 PCT/FI2002/000146 FI0200146W WO02074224A1 WO 2002074224 A1 WO2002074224 A1 WO 2002074224A1 FI 0200146 W FI0200146 W FI 0200146W WO 02074224 A1 WO02074224 A1 WO 02074224A1
Authority
WO
WIPO (PCT)
Prior art keywords
sauna
sauna oven
heating
oven according
oven
Prior art date
Application number
PCT/FI2002/000146
Other languages
French (fr)
Inventor
Veijo Olavi Kareinen
Tapio Tarmo Toivo Piironen
Martti Juhani Salstela
Original Assignee
Veijo Olavi Kareinen
Tapio Tarmo Toivo Piironen
Martti Juhani Salstela
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
Application filed by Veijo Olavi Kareinen, Tapio Tarmo Toivo Piironen, Martti Juhani Salstela filed Critical Veijo Olavi Kareinen
Publication of WO2002074224A1 publication Critical patent/WO2002074224A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H33/00—Bathing devices for special therapeutic or hygienic purposes
    • A61H33/06—Artificial hot-air or cold-air baths; Steam or gas baths or douches, e.g. sauna or Finnish baths
    • A61H33/063—Heaters specifically designed therefor

Definitions

  • the object of this invention is a heating method of a sauna oven and a sauna oven according to the method in accordance with the preamble of the attached claim 1.
  • the disadvantage with the present sauna ovens to be heated with firewood or electricity is the relatively long time required for the warming up of their stones.
  • the extended warm-up time of the stones is caused by the poor operating efficiency of the electric sauna ovens, which is due to the fact that the thermal resistances of the sauna oven do not warm up properly the stones because of a poor contact.
  • the heat of the furnace does neither be transferred properly into the sauna oven stones.
  • the consumption of the electricity is increasing strongly, when the consumers couple their sauna ovens simultaneously on, and a so-called consumption peak is created, in accordance with which the electrical distribution networks must be dimensioned. Because of the aforementioned consumption peaks the building and upkeep of the electrical networks becomes expensive, and in the same way the consumption peaks must be taken into account in the production of electricity, because the sufficiency in the supply of electricity must be guaranteed also during the time of the consumption peaks.
  • the object of the invention is to bring about a method of the heating of a sauna oven and a sauna oven, by which disadvantages connected with the present sauna ovens are removed.
  • the object of the invention is to bring forward a method for the heating of a sauna oven and a sauna oven, by which the sauna can be heated quickly ready for the bathing.
  • one or more heating organs are warmed up with the help of microwaves, in other words, the heating organs are warmed up with microwaves.
  • the frame of the sauna oven according to the invention is at least one production organ of microwave, with the help of which one or more heating organs are warmed up.
  • the heating organs (the stones) are warmed up fast, so the sauna is quickly sufficiently warm for the bathing and the bathing can be begun without any extended pre-heating of the sauna oven.
  • the microwaves bring the molecules of the sauna oven stone into movement, whereat all the energy in transferred into the stones the operating efficiency being close to 100 per cent.
  • the sauna oven according to the invention is reducing the consumption of electricity due to its good operating efficiency.
  • the stones of the sauna oven will be warmed up to the bathing readiness with a smaller amount of energy than nowadays. The small amount of energy is based on the good operating efficiency and the quick heating.
  • the sauna oven is comparatively small in size and it suits well into the present sauna rooms.
  • the sauna oven can also be manufactured in such a way, that it keeps the temperature inside the sauna oven constant, for instance at 40°C, by operating the microwave heating with the help of automatics. This constant temperature promotes the quick warming up of the sauna oven. Further the so-called emanating heat from the sauna oven keeps the temperature of the sauna comfortable, why it is not necessary to equip the sauna with a separate heating device. It is self-evident, that with the use of the invented method for the heating of the sauna oven and the sauna oven according to the method total economic saving is reached.
  • Figure 1 presents an embodiment of a sauna oven according to the invention seen oblique from above.
  • Figure 2 presents the sauna oven according to figure 1 partly crosscut seen right- angled from the side.
  • the frame part 1 the cover part la and the bottom lb therein, in which the hinges Id, and the actuator lc, in which the joints lea. Additionally in the sauna oven is placed the production organ 2 for microwaves, the electric resistance 3 and the heating organ 4.
  • the one or more heating organ 4 of the sauna oven are warmed up by means of the microwaves.
  • the frame part 1 is at least one production organ 2 for microwaves of an as such known technique.
  • the use of microwaves in the cooking of food is known, this known technique is also applied in the warming up of the heating organs 4 of the invented sauna oven.
  • the heating organs 4 are most favourably of a for the purpose suitable stone material, such as for instance soapstone (lapis ollaris), the thermal accumulation capacity of which is excellent, so with a single heating process a long bathing time is obtained.
  • the soapstones have most favourably the form of a ball, elliptical or of a corresponding form.
  • other known stones or ceramic products can be used.
  • the form of the stones is not wished to be limited to the aforementioned stones only, but the form can be so-called free-formed, for instance rubble stone pieces, or the form can be a rectangle, when the stones can be laid up tightly in the sauna oven.
  • the frame part 1 of the sauna oven must be possible to open, in figure 1 according to the arrow 5, for the throwing of the sauna steam water, so the cover part la and the bottom lb are turnably fastened with joints Id to the frame part 1.
  • the cover part la and the bottom lb are connected with each other by means of the actuator lc, wherefore at the opening of the cover part la also the bottom lb is opened.
  • the actuator lc is a structure with joints, which is fastened turnable with the help of the holding organs lea to the cover part la and the bottom lb.
  • the actuator is fastened to these in such a way, that when the cover part is opened also the bottom is opened.
  • a sensing device 7a which is arranged to recognize the cover part and the bottom being in the open or the closed position.
  • the streaming direction of the heating air is indicated with the arrow 6.
  • the known electric resistances 3 are placed, the purpose of which is to keep the heating organs 4 of the sauna oven warm/hot when the cover part la and the bottom lb are open.
  • the electric resistances 3 are necessary only then, when the operational time of the sauna oven is exceptionally long.
  • the frame part 1 there are one or more separate from each other being spaces for the heating organs 4.
  • the different spaces in other words in the with partition walls equipped spaces being heating organs 4 can be also warmed up in such a way, that a part of the heating organs 4 are warmed up with microwaves and the other part is warmed up heated by the known electric resistances.
  • the microwaves do not reach the electric resistances, which generally are made of metal.
  • the microwave technique makes the warming up in a metal dish possible, but the metal permitting microwave technique is presently more expensive, so the avoiding of the metals makes the technique more favourable.
  • the interior of the frame part 1 can be made for instance of glass, which has thermal resistance and does not cause problems in the microwave technique.
  • the electric resistances 3 can also be placed in grooves made inside the heating organs 4, especially when the heating organs 4 are of soapstone.
  • the cover part la, as well as the bottom lb can be opened and closed for instance by means of an electric motor, when the use can be arranged manually with the help of a coupling device or by means of automatic system.
  • the automatic system can for instance be programmed so, that temperature measuring transducers give the command to the electric motor to open the cover part la and the bottom lb, whereat the water can be thrown, when the temperature of the sauna arises and the temperature of the stones of the sauna oven sinks correspondingly, whereat the measuring automatics closes the above mentioned covering lids and starts the warming up of the stones of the sauna oven with microwaves.
  • the opening of the cover part la and the bottom lb can be controlled for instance in such a way, that when water is thrown on the cover part la a moisture detector installed in the cover part la is sensing the water and after the identification of it gives a command to the automatics of the covering lids to open the covering lid, when the normal bathing can be commenced.
  • All parts of the sauna oven according to the invention can be manufactured with known production methods and machines.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • Pain & Pain Management (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Rehabilitation Therapy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Devices For Medical Bathing And Washing (AREA)

Abstract

The object of this invention is a method for the heating of a sauna oven and a sauna oven according to the method, to be used for production of the warmth needed for the sauna bathing. The invention is characterized in, that one or more heating organs (4) are warmed up with the help of microwaves.

Description

METHOD FOR HEATING OF SAUNA OVEN AND A SAUNA OVEN ACCORDINGTO THEMETHOD
The object of this invention is a heating method of a sauna oven and a sauna oven according to the method in accordance with the preamble of the attached claim 1.
Nowadays the sauna ovens are generally heated with firewood or electricity.
The disadvantage with the present sauna ovens to be heated with firewood or electricity is the relatively long time required for the warming up of their stones. In the electric ovens the extended warm-up time of the stones is caused by the poor operating efficiency of the electric sauna ovens, which is due to the fact that the thermal resistances of the sauna oven do not warm up properly the stones because of a poor contact. In the firewood heated sauna oven the heat of the furnace does neither be transferred properly into the sauna oven stones.
Due to the extended heating time the heating of the sauna oven must be commenced a considerably long time before the bathing. This has as a consequence, that the exact bathing time must be defined in advance. The people of today do not like to have to plan the spending of their time-off on a long term, but they want to start right away. It has been endeavoured to remove this problem with the so-called "instant ready"-electrically heated sauna ovens. The heat capacity of these sauna ovens is, however, limited, so their quantity of heat is not sufficient, if the number of the bathing people is high. In addition the "instant ready"-sauna ovens are big to their size, and the large size of them is causing problems in placing of them and making them suit into the present sauna spaces.
The consumption of the electricity is increasing strongly, when the consumers couple their sauna ovens simultaneously on, and a so-called consumption peak is created, in accordance with which the electrical distribution networks must be dimensioned. Because of the aforementioned consumption peaks the building and upkeep of the electrical networks becomes expensive, and in the same way the consumption peaks must be taken into account in the production of electricity, because the sufficiency in the supply of electricity must be guaranteed also during the time of the consumption peaks.
The object of the invention is to bring about a method of the heating of a sauna oven and a sauna oven, by which disadvantages connected with the present sauna ovens are removed. In particular the object of the invention is to bring forward a method for the heating of a sauna oven and a sauna oven, by which the sauna can be heated quickly ready for the bathing.
The above mentioned disadvantages can be removed and the above mentioned objects are reached by the heating method of the sauna oven and the sauna oven according to the invention, which are characterized in that, what is described in the characteristic parts of the claims.
In the method according to the invention one or more heating organs are warmed up with the help of microwaves, in other words, the heating organs are warmed up with microwaves. In the frame of the sauna oven according to the invention is at least one production organ of microwave, with the help of which one or more heating organs are warmed up.
As the most important advantages of the invention can be mentioned, that thanks to the microwaves the heating organs (the stones) are warmed up fast, so the sauna is quickly sufficiently warm for the bathing and the bathing can be begun without any extended pre-heating of the sauna oven. The microwaves bring the molecules of the sauna oven stone into movement, whereat all the energy in transferred into the stones the operating efficiency being close to 100 per cent. The sauna oven according to the invention is reducing the consumption of electricity due to its good operating efficiency. The stones of the sauna oven will be warmed up to the bathing readiness with a smaller amount of energy than nowadays. The small amount of energy is based on the good operating efficiency and the quick heating. Another alternative is, that with small energy, that is with a low amount of kilowatts, is heated for a longer period of time, whereat the top consumption of energy is decreased. The operation of the invented sauna oven is easy. The sauna oven is comparatively small in size and it suits well into the present sauna rooms. The sauna oven can also be manufactured in such a way, that it keeps the temperature inside the sauna oven constant, for instance at 40°C, by operating the microwave heating with the help of automatics. This constant temperature promotes the quick warming up of the sauna oven. Further the so-called emanating heat from the sauna oven keeps the temperature of the sauna comfortable, why it is not necessary to equip the sauna with a separate heating device. It is self-evident, that with the use of the invented method for the heating of the sauna oven and the sauna oven according to the method total economic saving is reached.
In the following the invention is explained in detail with reference to the attached figures: Figure 1 presents an embodiment of a sauna oven according to the invention seen oblique from above.
Figure 2 presents the sauna oven according to figure 1 partly crosscut seen right- angled from the side.
In the figures 1 and 2 the following parts of the sauna oven are to be seen: the frame part 1, the cover part la and the bottom lb therein, in which the hinges Id, and the actuator lc, in which the joints lea. Additionally in the sauna oven is placed the production organ 2 for microwaves, the electric resistance 3 and the heating organ 4.
In the sauna oven the one or more heating organ 4 of the sauna oven are warmed up by means of the microwaves. In the frame part 1 is at least one production organ 2 for microwaves of an as such known technique. The use of microwaves in the cooking of food is known, this known technique is also applied in the warming up of the heating organs 4 of the invented sauna oven.
The heating organs 4 are most favourably of a for the purpose suitable stone material, such as for instance soapstone (lapis ollaris), the thermal accumulation capacity of which is excellent, so with a single heating process a long bathing time is obtained. The soapstones have most favourably the form of a ball, elliptical or of a corresponding form. Also other known stones or ceramic products can be used. The form of the stones is not wished to be limited to the aforementioned stones only, but the form can be so-called free-formed, for instance rubble stone pieces, or the form can be a rectangle, when the stones can be laid up tightly in the sauna oven.
In the figures 1 and 2 one structural solution of the invented sauna oven is presented, in which in the frame part 1 is the cover part la and the bottom lb. The cover part la together with the bottom forms an obstacle for the microwaves to have any effect outside the sauna oven. During the heating time with the microwaves the frame part 1 of the sauna oven is closed in the same way as is the present microwave oven.
The frame part 1 of the sauna oven must be possible to open, in figure 1 according to the arrow 5, for the throwing of the sauna steam water, so the cover part la and the bottom lb are turnably fastened with joints Id to the frame part 1. The cover part la and the bottom lb are connected with each other by means of the actuator lc, wherefore at the opening of the cover part la also the bottom lb is opened. The actuator lc is a structure with joints, which is fastened turnable with the help of the holding organs lea to the cover part la and the bottom lb. The actuator is fastened to these in such a way, that when the cover part is opened also the bottom is opened. Additionally in the sauna oven is placed at the bottom a sensing device 7a, which is arranged to recognize the cover part and the bottom being in the open or the closed position. In the figures 1 and 2 the streaming direction of the heating air is indicated with the arrow 6.
In the embodiment presented in the figures 1 and 2 inside the frame part 1 the known electric resistances 3 are placed, the purpose of which is to keep the heating organs 4 of the sauna oven warm/hot when the cover part la and the bottom lb are open. The electric resistances 3 are necessary only then, when the operational time of the sauna oven is exceptionally long.
According to one not in the figures presented structural alternative of the invention in the frame part 1 there are one or more separate from each other being spaces for the heating organs 4. In the different spaces, in other words in the with partition walls equipped spaces being heating organs 4 can be also warmed up in such a way, that a part of the heating organs 4 are warmed up with microwaves and the other part is warmed up heated by the known electric resistances. With the placing in the different spaces is achieved, that the microwaves do not reach the electric resistances, which generally are made of metal. Nowadays the microwave technique makes the warming up in a metal dish possible, but the metal permitting microwave technique is presently more expensive, so the avoiding of the metals makes the technique more favourable.
The interior of the frame part 1 can be made for instance of glass, which has thermal resistance and does not cause problems in the microwave technique.
The electric resistances 3 can also be placed in grooves made inside the heating organs 4, especially when the heating organs 4 are of soapstone.
The cover part la, as well as the bottom lb can be opened and closed for instance by means of an electric motor, when the use can be arranged manually with the help of a coupling device or by means of automatic system. The automatic system can for instance be programmed so, that temperature measuring transducers give the command to the electric motor to open the cover part la and the bottom lb, whereat the water can be thrown, when the temperature of the sauna arises and the temperature of the stones of the sauna oven sinks correspondingly, whereat the measuring automatics closes the above mentioned covering lids and starts the warming up of the stones of the sauna oven with microwaves. In addition to the temperature the opening of the cover part la and the bottom lb can be controlled for instance in such a way, that when water is thrown on the cover part la a moisture detector installed in the cover part la is sensing the water and after the identification of it gives a command to the automatics of the covering lids to open the covering lid, when the normal bathing can be commenced.
All parts of the sauna oven according to the invention can be manufactured with known production methods and machines.
To the professionals in the branch it is clear, that the invention is not limited only to the above-presented alternatives, but many variations are possible within the frames of the inventive idea defined by the attached claims.

Claims

1. A method for the heating of a sauna oven and a sauna oven according to the method, to be used for the production of the warmth needed for the bathing, characterized in that one or more heating organs (4) are warming up with the help of microwaves.
2. A sauna oven according to claim 1, which has a frame part (1), characterize d in that in the frame (1) is at least one production organ (2) for microwaves.
3. A sauna oven according to claim 1, characterized in that in the frame part (1) is a cover part (la).
4. A sauna oven according to claim 1, characterized in that in the frame part (1) is a bottom (lb).
5. A sauna oven according to claim ^characterized in that the cover part (la) is fastened turnably with a joint (Id) to the frame part (1).
6. A sauna oven according to claim 3 and 4, characterized in that the bottom (lb) is fastened turnably with a joint (Id) to the frame part (1).
7. A sauna oven according to claim 3 and 4, characterized in that the cover part (la) and the bottom (lb) are connected with each other with an actuator (lc), wherefore at the opening of the cover part (la) also the bottom (lb) is opened.
8. A sauna oven according to claim 3 and 4, characterized in that the closed position of the cover part (la) and the bottom (lb) is recognized by a sensing device (7a).
9. A sauna oven according to claim 1, characterized in that the heating organs (4) are soapstones of a ball, elliptical or corresponding to their form.
10. A sauna oven according to claim 1, characterized in that in the frame part (1) there are one or more from each other separated spaces for the heating organs (4).
PCT/FI2002/000146 2001-03-01 2002-02-22 Method for heating of sauna oven and a sauna oven according to the method WO2002074224A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20010407A FI108213B (en) 2001-03-01 2001-03-01 System for heating of a sauna stove and the sauna stove according to the method
FI20010407 2001-03-01

Publications (1)

Publication Number Publication Date
WO2002074224A1 true WO2002074224A1 (en) 2002-09-26

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WO (1) WO2002074224A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008132285A1 (en) * 2007-04-27 2008-11-06 Poenkaenen Esa Sauna stove heating method and stove
CN105992580A (en) * 2013-10-22 2016-10-05 里斯托·塔皮奥·伊利-科魏罗 Sauna stove lid structure and a sauna stove equipped with the lid structure

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000035405A1 (en) * 1998-12-11 2000-06-22 Sauna-Eurox Oy Electric sauna stove

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000035405A1 (en) * 1998-12-11 2000-06-22 Sauna-Eurox Oy Electric sauna stove

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008132285A1 (en) * 2007-04-27 2008-11-06 Poenkaenen Esa Sauna stove heating method and stove
CN105992580A (en) * 2013-10-22 2016-10-05 里斯托·塔皮奥·伊利-科魏罗 Sauna stove lid structure and a sauna stove equipped with the lid structure
US9999566B2 (en) 2013-10-22 2018-06-19 Risto Tapio Yli-Kovero Sauna stove lid structure and a sauna stove equipped with the lid structure

Also Published As

Publication number Publication date
FI20010407A0 (en) 2001-03-01
FI108213B (en) 2001-12-14

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