Fireplace with a standardised technological base

Abstract

The present invention relates to a fireplace (28) comprising a combustion chamber (2) comprising at least four adjacent vertical walls (10 / a, 10 / b, 10 / c, 10 / d) with an identical angle α between the inner faces (10f) of these adjacent vertical walls and with the outer face (10e) of at least two vertical walls (10 / a, 10 / b, 10 / c, 10 / d) comprising an interface (16) for connecting a technical element (18, 20, 25), the outer face (10e) being chosen depending on the arrangement of the fireplace (28) within a space. The invention further relates to a fireplace (28) comprising a combustion chamber (2) with a door frame (4) provided with lateral uprights (6) having external lateral facets (7) forming therebetween an angle β of between 85° and 95° and internal lateral facets (8), extending as a continuation of the internal wall (9) of the combustion chamber (2) and forming therebetween an angle σ of between 100° and 130°.

Description

HOME WITH A STANDARDIZED TECHNOLOGICAL BASE Subject of the invention

[0001] The present invention relates to a fireplace preferably using solid fuel. It relates more specifically to a fireplace subject to strong technical and architectural constraints with a standard base which allows its adaptation to any type of arrangement within a space. Technological background and state of the art

[0002] The process of designing individual heating systems is unique in that it requires the integration of two types of constraints that have a strong influence on the product design. The first set of constraints is induced by the functional aspects of the home and the need to create efficient, safe, and easy-to-use products. The second is linked to the aesthetic character of the products and all the elements that will allow them to be integrated harmoniously and attractively into the living spaces in which they will be placed.

[0003] The need to achieve very high levels of performance and to differentiate aesthetically requires ever-increasing investments in research and development of new solutions. On the other hand, competition with many products from low-cost countries forces manufacturers in regions with high social and environmental standards to use cutting-edge industrial tools. These processes make it possible to reduce marginal production costs but also require significant investments during their implementation (production of foundry or injection molds, purchase and robot programming, construction of templates, etc.). The weight of these investments on the cost price of products has an even greater impact on competitiveness in niches where the quantities manufactured are relatively low.

[0004] The diversity of aesthetic sensibilities, as well as technical and architectural constraints, places limits on the ability to standardize solutions. This must therefore be combined with a delayed differentiation approach that allows for a wide range of products to be offered while capitalizing on common technological bases. This leads many manufacturers to offer different product variants based on the same technological base. However, these variants are limited to product finishing elements (colors, facing materials, etc.) and not to the structure and architecture of the products themselves. Furthermore, the evolution of energy performance requirements for buildings, as well as the increase in the price of building space, are leading to a reduction in the size of homes.This further complicates the design of standardized solutions based on the principles of delayed differentiation, as common technical elements must be compatible with the most demanding product configurations in terms of compactness, but must also allow the creation of larger fireplaces that can be integrated into more spacious interiors.

[0005] From document US 9,435,542, a fireplace is known comprising openings in the walls of the combustion chamber to accommodate conduits for the introduction of gas or fuel oil from a position outside the fireplace. Aims of the invention

[0006] The present invention aims to develop a fireplace with a standardized technological base allowing for numerous integration variations within the home, covering both compact or large independent fireplaces, flat or corner, as well as fireplaces built into flat or corner walls. The fireplace with a standardized technological base must allow this wide range to be covered according to the customer's needs while integrating harmoniously with the architecture of the building and its technical constraints. To do this, the fireplace has particular geometric characteristics that allow this standardization from both an aesthetic and functional point of view.

[0007] The features described in the present invention make it possible to meet the objectives of delayed differentiation. As a priority, the combustion chamber must meet specific geometric characteristics. Then, to push the concept of standardization further, the door frame advantageously also has geometric characteristics that will allow it to be integrated into different types of habitats with a common door offering a similar aesthetic rendering regardless of the environment. On the one hand, the design of the combustion chamber and, more specifically, of the connection zone of standardized technical components necessary for the operation of the fireplace allows a wide variety of arrangement of these components depending on the product configurations envisaged.Furthermore, the geometry of the door frame closing the combustion chamber creates a sense of continuity between this frame and various possibilities for extending it depending on the product's integration options. In combination with the geometric specificities of the chamber, the shape of the door frame also ensures geometric continuity between the inside and outside of the combustion chamber at the level of the fireplace glass. This continuity results in reducing the effect of separation between the inside and outside of the combustion chamber and gives an impression of an "open fire", which is popular with users. The technical reading of the appliance is thus hidden in favor of the pleasure and staging of the fire.

[0008] More specifically, the present invention relates to a fuel fireplace, preferably solid fuel such as pellets, comprising a heating body with a combustion chamber provided with adjacent vertical walls, each vertical wall being defined by a face facing the outside of the combustion chamber, called the outer face, and a face facing the inside of the combustion chamber, called the inner face, the outer face of at least two vertical walls comprising an interface making it possible to connect a technical element to the outside of the combustion chamber, said outer face intended to be connected to the technical element being chosen according to the arrangement of the fireplace within a space, said hearth being characterized in that it comprises at least four adjacent vertical walls with an identical angle a separating the interior faces of the adjacent vertical walls.

[0009] In combination with the above hearth having an identical angle a between the inner faces of the adjacent vertical walls or independently, the present invention also relates to a fuel hearth, preferably solid such as pellets, comprising a heating body with a combustion chamber closed by a door comprising a frame with lateral uprights, characterized in that the lateral uprights of the frame comprise external lateral facets forming between them an angle P of between 85° and 95°. Preferably, the lateral uprights of the frame also comprise internal lateral facets forming a continuity with the internal wall of the combustion chamber and forming between them an angle o of between 100° and 130°.

[0010] The focus with an identical angle a between the inner faces of the adjacent vertical walls as well as the focus with the external and internal lateral facets of the door frame respectively forming between them said angle P and said angle o further have one or more of the following characteristics: the four adjacent vertical walls are tangent to a circle, called a circle inscribed within the four adjacent vertical walls; the perpendiculars to the four adjacent vertical walls which are centered on the interfaces intersect at the same point of intersection; the angle a is between 133° and 145°, preferably between 135° and 142.5°; the two vertical walls at the ends of the four adjacent vertical walls form between them an angle y between 39° and 75°, preferably between 45° and 67°.5°; it comprises a fuel tank and two fuel supply tubes with a first tube connected to the fuel tank and a second tube connected to the combustion chamber, the first tube and the second tube being mounted in rotation relative to each other; the first tube is mounted in rotation relative to the fuel tank;. it may comprise at the interface an intermediate junction element positioned between the external face of the vertical wall and the technical element, said intermediate junction element comprising, opposite the technical element to be connected, a face inclined relative to the vertical wall. Brief description of the figures

[0011] Figure 1 represents a three-dimensional view of the hearth according to the invention.

[0012] Figure 2 shows another three-dimensional view of the rear of the fireplace according to the invention.

[0013] Figure 3 represents a horizontal sectional view of the hearth according to the invention.

[0014] Figure 4 shows a sectional view of the combustion chamber equipped with four vertical walls with the different geometric characteristics ensuring functional and aesthetic standardization.

[0015] Figure 5 schematically represents two superimposed horizontal sectional views of a part of the combustion chamber provided with four vertical walls for two different angles y of 45° and 67.5° respectively.

[0016] Figures 6 and 7 represent a horizontal sectional view of the combustion chamber with, for figure 6, an angle y greater than 45° and an intermediate joining element arranged on one of the vertical walls of the combustion chamber and for figure 7, an angle y of 45° without an intermediate joining element arranged on one of the vertical walls of the combustion chamber.

[0017] Figures 8 and 9 show a horizontal sectional view of the combustion chamber with the technical elements connected to the rear of said combustion chamber.

[0018] Figure 10 shows different configurations of arrangement of the fireplace according to the invention in relation to a wall with in the upper part three configurations of fireplaces against the wall and in the lower part three configurations of built-in fireplaces.

[0019] Figure 11 shows a vertical sectional view of the burner fuel supply device and the bottom of the tank.

[0020] Figure 12 represents a three-dimensional view of this same device and Figure 13 a partially exploded view of this device.

[0021] Figure 14 shows vertical sectional views of part of the fireplace with the air inlet duct oriented differently depending on the position of the air inlet, respectively at the bottom in the left view and at the top in the right view. (1) heating body (2) combustion chamber (3) door (4) door frame (5) window (6) door frame side posts (7) external side facets of the door frame (8) internal side facets of the door frame (9) internal wall of the combustion chamber (10) vertical wall of the heating body e. outer face f. inner face (12) combustion chamber lining (13) hearth sole (14) burner (15) external lateral edge of the lining (16) interface for fixing technical elements (17) intermediate junction element a. inclined face (18) air inlet (19) door frame extension (20) ash removal device (22) first screw (23) first tube, also called upper position tube, (24) second screw (25) second tube, also called lower position tube, (26) tube joining device (27) wall (28) home (29) tank (30) tank junction device (31) detailed description of the invention

[0022] The present invention relates to a fuel fireplace, preferably solid such as pellets. This fireplace 28 is intended to be integrated, in the center of a room, against flat or corner walls 27 as well as in the form of fireplaces embedded in flat or corner walls as shown diagrammatically in figure 10. The fireplace 28 comprises a heating body 1 comprising a combustion chamber 2 closed by a window 5 mounted on a frame 4 of a door 3 (figs. 1 and 3). The combustion chamber 2 is delimited by several vertical walls 10 over all or part of its height (fig. 2). The vertical walls 10 are each formed by a face facing the outside of the combustion chamber, called the outer face 10e, and a face facing the inside of the combustion chamber, called the inner face 10f. These vertical walls can be covered with a lining 12 arranged inside the combustion chamber (fig.3) with the face of the lining directed towards the interior of the combustion chamber defining an inner wall 9. In the absence of lining, it is the inner face lOf of the vertical wall which defines the inner wall 9.

[0023] According to the invention, at least 4 vertical walls 10 / a, 10 / b, 10 / c, 10 / d form adjacent walls separated by the same angle a (figs. 2 and 4). According to the invention, this angle a is preferably between 133° and 145°, more preferably between 135° and 142.5°. The same angle takes into account a small margin of error around the angle of + and -1°. Thus, if the target angle a is 133° between each of the adjacent walls, the angle a can be between 132° and 134°. Still according to the invention, at least two of these adjacent walls are provided with an interface 16 allowing the connection of standard technical elements such as a pellet supply tube 25, an air or gas inlet 18, a spark plug ignition, an ash removal device 20, a smoke evacuation duct, etc. on the wall as desired depending on the arrangement of the fireplace in the room (figs. 8 to 10). Preferably, at least 3 adjacent walls separated by this identical angle a are provided with an interface 16 allowing the connection of different technical elements at the rear of the fireplace. Preferably, the interface 16 is the same for all the vertical walls on which the interface is present. These interfaces 16 are formed of openings made through the vertical wall.

[0024] The hearth has the geometric characteristic that the four adjacent vertical walls 10 / a, 10 / b, 10 / c, 10 / d are tangent to a circle visible in Figure 5. This is referred to as a circle inscribed within the four adjacent vertical walls 10 / a, 10 / b, 10 / c, 10 / d. Preferably, the perpendiculars to the four adjacent vertical walls 10 / a, 10 / b, 10 / c, 10 / d which are centered on the interfaces 16 intersect at the same point of intersection. Still preferably, the perpendiculars intersect at the center of the burner. Thus, the axis of the standard technical element is oriented towards the center of the burner. For certain standard technical elements such as ash removal devices, it may be advantageous to offset the axis of the device relative to the center of the burner. In this case, one or more of the interfaces may be provided with an intermediate junction element 17 positioned between the outer face 10e of the vertical wall and the technical element.This intermediate junction element has the characteristic that its face 17a intended to be in contact with the technical element is inclined relative to the vertical wall. The perpendicular to the inclined face at the center of the junction element thus intersects the perpendiculars to the other interfaces or other junction elements at a point which is not centered on the burner. In the examples illustrated, the interface or the intermediate junction element has a substantially square shape with possibly rounded corners. It could have any shape. The center is understood to be the middle along the horizontal axis, the horizontal being defined as the perpendicular to the vertical axis of the hearth in the position of use.

[0025] Preferably, the two end walls 10 / a and 10 / d form, between them, an angle γ between 39° and 75° (fig.4). More preferably, the combustion chamber comprises 4 adjacent vertical walls 10 / a, 10 / b, 10 / c, 10 / d, separated from each other by an angle α between 135° and 142.5°, the two end walls 10 / a and 10 / d then forming, between them, an angle y between 45° and 67.5° (figs.4 and 5).

[0026] Still in a spirit of standardization, the lateral uprights 6 of the frame 4 of the door have certain characteristics allowing the use of a common door adapted to different product architectures and orientation of the hearth in the room. The lateral uprights 6 visible in figures 3 and 4 each have an external lateral facet 7 and an internal lateral facet 8. The external lateral facets 7 of the uprights 6 form between them an angle P of between 85° and 95°. This construction allows multiple possibilities of extension 19 of the door frame (figs. 4 and 10) and in particular at right angles, a particularly interesting variant in the case of corner integrations. On the other hand, the internal lateral facets 8 of the uprights 6 form, between them, an angle o of between 100° and 130° in order to offer an open view of the combustion chamber.

[0027] In its lower plane, the combustion chamber is delimited by a hearth sole 13 allowing to accommodate the burner 14 of the hearth (figs.l and 3) with the burner which, for example, can be circular in shape. By geometric construction, there appears an interdependence (fig.5) between: the maximum diameter, D, of the circle inscribed in the surface of the sole 13 within the vertical walls and allowing to accommodate the burner 14 of the hearth as well as the lining 12 of the chamber. the width (Le7.s & L45) and the depth of the chamber (P67.5 & P45) with 45 and 67.5 corresponding to the predefined angle y. the width (ky.s & I45) of the interior walls 10 / b and 10 / c, i.e. the walls contained between the end walls.

[0028] With the aim of optimizing the compactness of the elements common to the different formal product variations, a choice of angle y of 67.5° offers a particularly interesting compromise because it makes it possible to reconcile a compact and open chamber with faces 10 / b and 10 / c of ​​sufficient width to accommodate the technical elements (fig.8) (air inlet, pellets, etc.). An angle y of 45° can also be an interesting option because it implies that the angle p between two separated walls 10 / a, 10 / c or 10 / b, 10 / d by a respective intermediate wall 10 / b or 10 / c, is equal at 90° (fig.7). This offers an advantage when certain technical elements connected to these walls must be positioned perpendicular to each other. This is particularly the case between the axis of symmetry of the burner 14 and its supply screw 24 and the axis of rotation of the ash removal device 20 of the hearth (figs.8 and 11). In the case of an angle y different but close to 45°, the intermediate joining element 17 positioned at the interface 16 can however be used in order to meet this possible constraint (figs.2 and 6). More generally, the entire range of angles y between 39° and 75°, preferably between 45° and 67.5°, makes it possible to obtain a compromise between a sufficient opening of the chamber and a sufficient width of the interior walls 10 / b and 10 / c.

[0029] For aesthetic reasons, the internal lateral facets 8 of the uprights 6 may be in line with the internal wall 9 of the combustion chamber (fig. 3). When the angle o is between 100° and 130° and the angle y is between 65° and 70°, and more precisely is 67.5°, this allows a wide and open view of the combustion chamber while limiting the compensation angle 8 required at the external vertical edges 15 of the lining 12 of the chamber (fig. 4). This angle makes it possible to compensate for the difference in angle between the two walls at the ends 10 / a and 10 / d of the chamber and the internal lateral facets 8 of the uprights 6 in order to ensure the effect of continuity between the interior formed by the internal wall 9 and the exterior formed by the internal lateral facets 8 of the door frame.A low compensation angle of 8 makes it possible to work with a filling of relatively constant thickness and to limit the risks of deformation at the level of the thinned parts.

[0030] The hearth comprises two pellet feed tubes 23 and 25 with a respective screw 22 and 24, visible in figures 12 to 14. The tube 23 in the upper position is connected to the fuel tank 29 and the tube 25 in the lower position is connected to the combustion chamber 2 via the interface 16 of a vertical wall 10. In order to optimize the possibilities of standardization, these tubes 23 and 25 comprise connecting elements 26 and 30 allowing respectively a relative rotation between the two tubes and a relative rotation between the tube 23 in the upper position and the tank 29 (figs. 11 to 13). This, combined with the possibility of being able to position the tube 25 in the lower position on different interfaces 16 of the combustion chamber 2, makes it possible to numerous variants of positioning of the tank 29 relative to the combustion chamber 2.

[0031] On the other hand, in addition to being able to be positioned on different interfaces 16 of the hearth, certain technical elements are designed so that their position on the same interface 16 can be adapted according to the conditions of integration or connection of the hearth. For example, the orientation of the air inlet duct 18 can be chosen according to the air connection configurations of the hearth with an air inlet in the upper part (on the right) or in the lower part of the hearth (on the left) (fig. 14).

Claims

CLAIMS 1. A fireplace (28) for fuel, preferably solid fuel such as pellets, comprising a heating body (1) with a combustion chamber (2) provided with adjacent vertical walls (10 / a, 10 / b, 10 / c, 10 / d), each vertical wall being defined by a face facing the outside of the combustion chamber (2), called the outer face (10e), and a face facing the inside of the combustion chamber (2), called the inner face (10f), the outer face (10e) of at least two vertical walls (10 / a, 10 / b, 10 / c, 10 / d) comprising an interface (16) for connecting a technical element (18, 20, 25) to the outside of the combustion chamber (2), said outer face (10e) intended to be connected to the technical element (18, 20, 25) being chosen according to the arrangement of the fireplace (28) within a space, said hearth (28) being characterized in that it comprises at least four adjacent vertical walls (10 / a, 10 / b, 10 / c,10 / d) with an identical angle a separating the interior faces (lOf) of the adjacent vertical walls (10 / a, 10 / b, 10 / c, 10 / d)., 2. Hearth (28) according to claim 1, characterized in that it has the geometric characteristic that the four adjacent vertical walls (10 / a, 10 / b, 10 / c, 10 / d) are tangent to a circle, called a circle inscribed within the four adjacent vertical walls (10 / a, 10 / b, 10 / c, 10 / d).

3. Hearth (28) according to claim 2, characterized in that the perpendiculars to the four adjacent vertical walls (10 / a, 10 / b, 10 / c, 10 / d) which are centered on the interfaces (16) intersect at the same point of intersection.

4. Hearth (28) according to one of the preceding claims, characterized in that it comprises at the interface (16) an intermediate junction element (17) positioned between the outer face (10e) of the vertical wall (10) and the technical element (18, 20, 25), said intermediate junction element (17) comprising opposite the technical element (18, 20, 25) to be connected an inclined face (17a) relative to the vertical wall.

5. Hearth (28) according to one of the preceding claims, characterized in that the angle a is between 133° and 145°, preferably between 135° and 142.5°.

6. Hearth (28) according to one of the preceding claims, characterized in that the two vertical walls (10 / a and 10 / d) at the ends of the four adjacent vertical walls (10 / a, 10 / b, 10 / c, 10 / d) form between them an angle y between 39° and 75°, preferably between 45° and 67.5°.

7. Firebox (28) according to one of the preceding claims, characterized in that the inner face (10f) of the vertical walls (10 / a, 10 / b, 10 / c, 10 / d) forms an inner wall (9) of the combustion chamber (2) or in that the inner face (10f) of the vertical walls (10 / a, 10 / b, 10 / c, 10 / d) is covered with a lining (12) with said lining (12) then forming an inner wall (9) of the combustion chamber (2), the combustion chamber (2) being closed by a door (3) comprising a frame (4) with lateral uprights (6) comprising external lateral facets (7) forming between them an angle P of between 85° and 95°.

8. Firebox (28) according to one of the preceding claims, characterized in that it comprises a fuel tank (29) and two fuel supply tubes (23, 25) with a first tube (23) connected to the fuel tank (29) and a second tube (25) connected to the combustion chamber (2), the first tube (23) and the second tube (25) being mounted to rotate relative to each other.

9. Hearth (28) according to the preceding claim, characterized in that the first tube (23) is mounted in rotation relative to the fuel tank (29).

10. Hearth (28) for fuel, preferably solid fuel such as pellets, comprising a heating body (1) with a combustion chamber (2) closed by a door (3) comprising a frame (4) with lateral uprights (6), characterized in that the lateral uprights (6) of the frame (4) comprise external lateral facets (7) forming between them an angle P of between 85° and 95°.

11. Hearth (28) according to claim 7 or 10, characterized in that the lateral uprights (6) of the frame (4) also comprise internal lateral facets (8) forming a continuity with the internal wall (9) of the combustion chamber (2) and forming between them an angle o of between 100° and 130°.

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