MXPA99005146A - Mobile radiator and independent operation and process for your manufacturer - Google Patents

Abstract

The present invention relates to the mobile and independently operating radiator includes a body having a plurality of radiation members, each defined by a first metal plate and a second metal plate associated with each other, and by a central portion wherein the fluid heated circulates at a temperature predetermined by a resistance, the radiation members are mutually connected through passage bushings to circulate the heated fluid within the body, each radiation member having a region of its surface, external to the central portion, which has a wall thickness equal to the thickness of the first and second metal plates

Description

MOBILE RADIATOR AND INDEPENDENT OPERATION AND PROCESS FOR ITS MANUFACTURE BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile and independently operating radiator and to a process for manufacturing the radiator. 2. Description of the Prior Art Currently, as is known, there are several types of mobile radiators and independent operation, such as radiators where the circulating diathermano oil is heated by an electric resistance arranged inside the radiator cover. These diathermal oil radiators usually have a number of radiation members mutually and hydraulically connected by means of upper and lower bushings. Each radiation member is constituted by a first metallic plate and a second metallic plate mutually associated to be able to define a central portion where the diathermal oil circulates. In each radiation member, the surface portion extending outward from the central portion where the oil circulates may have folds and / or channels and / or openings in the double metal sheet defined by the mutual connection of the first and second plates . These folds and / or channels and / or openings are adapted to reduce heat transmission from the central portion to the periphery of each radiation member. In this way, the peripheral surfaces of the radiator are at a lower temperature than that of the heated oil circulating in the central portion. Despite its good operation, this type of radiator has a relatively high manufacturing cost and consequently a high selling cost. In fact, the provision of a grid over the radiator cover requires additional work of forming, storing, defatting, painting and grid assembly thereby increasing the costs due to the materials and additional production steps. In addition, the prior art radiators described above have the drawback of being heavy, which causes high transport costs and is an obstacle for the end user when it is intended to move the radiator around the room. The object of the present invention is to eliminate the above drawbacks of the radiators of the prior art, which operate with diathermy oil. An important object of the invention is to provide a mobile radiator and independent operation and a process for its manufacture allowing a considerable saving of material for the manufacture of the radiator and with this a lower weight of the radiator and an easy operation by the user. Another object of the invention is to provide a mobile and independently operating radiator and a process for its manufacture, allowing to provide the grid directly on the portion of the radiation members of the radiator cover in order to be able to eliminate any additional manufacturing step and to reduce the cost of manufacturing and therefore the cost of selling the rieader. Still another object of the present invention is to provide a mobile radiator and independent operation and a process for its manufacture allowing a greater convective movement and therefore a greater heat exchange, with the same capacity of the radiators of the prior art. Still another object of the invention is to provide a mobile radiator and independent operation and a process for its manufacture allowing greater circulation of ambient air and therefore less time required to heat the room and better total efficiency of the radiator.

BRIEF DESCRIPTION OF THE INVENTION The above technical object, like the foregoing and other objects that will be more obvious hereafter, are achieved by a mobile and independently operating radiator comprising a body having a plurality of radiation members each one defined by at least one first metallic plate and one second metallic plate mutually associated and at least by a central portion wherein the heated fluid circulates at a temperature predetermined by the heating means, the radiation members are mutually connected through passage bushings for the heated fluid for circulation within the body, characterized in that each of the radiation members has at least one region of its surface, external to the central portion. wherein the heated fluid circulates, having a wall thickness substantially equal to the thickness of the first metal plate in the second metal plate.

BRIEF DESCRIPTION OF THE DRAWINGS Additional features and advantages of the invention will be more obvious and following the description of the mobile radiator and independent operation and process for its manufacture, according to the illustrated invention, by means of the example in the attached drawings wherein: Figure 1 is a side elevation view of the radiator body where, for example, the wheels for their transfer are not illustrated; Figure 2 is a top plan view of the radiator body shown in Figure 1 according to the invention; Figure 3 is a side elevational view of the upper portion of two radiator radiator members wherein one member is in cross section; Figure 4 is a front elevation view of a radiation member of the radiator according to the invention; Figure 5 is an exploded view of the first metal plate and the second metal plate defining a radiation member of the radiator according to the invention; Figures 6 and 7 are sectional views showing respectively the first and second metal plates, sectioned and mutually associated according to the invention; Figure 8 is a view according to section line VIII-VIII of Figure 4, according to the invention; Figures 9 and 10 are a front view of a different embodiment of radiator radiator members according to the invention; Figures 11 to 19 show the various manufacturing steps of each radiation radiator member according to the invention; Figures 20 to 23 show the various manufacturing steps of each radiation member according to the radiator shown in Figure 4.

DESCRIPTION OF THE PREFERRED MODALITIES OF THE INVENTION With reference to the previous figures, the mobile radiator and independent operation, globally designated by the reference number 1, comprises a body 2 defined by a plurality of radiation members each defined at least by a first metal plate and a second metal plate, globally designated "by the reference numerals 3 and 4, and at least by a central portion 5 where a fluid heated to a pre-set temperature by means of heating circulates, is say a resistance 6. The radiation members communicate with each other through bushings 7 for the passage of the heated fluid, for example, a diathermic oil, allowing the fluid to circulate internally inside the radiator body 2. Advantageously, each member of the radiator body radiation has at least one region of its surface 8 external to the central portion 5 where the diathermic oil circulates having a wall thickness S "substantially equal to the wall thickness of the first and second metal plates 3 or 4.

In particular, the wall thickness "S" is made equal to the wall thickness of the first and second metal plates 3 or 4 by the first metal plate 3 having a larger size than the second metal plate 4 and comprising defined seating means by a seat 10, having a size substantially similar to the size of the second metal plate 4, allowing the second metal plate 4 to be disposed in a seat 10. In this way, as can be clearly seen in Figure 7, once the first and second metal plates 3 and 4 are mutually associated, the first plate 3 extends beyond the central region where the diathermal oil of a middle region thereof circulates. The second metal plate 4 is also associated with the first metal plate 3 by an electric welding and laminating its peripheral region within the seat 10 formed in the first metal plate. According to a variation of the embodiment, each radiation member has a surface tapered in this way having a substantially trapezoidal shape with a lower base 40 facing upwards and the larger base 41 facing downwards to allow optimization of the convective air movement due to the lower major base 41 it defines a suction door of larger size than the smaller base 40 and therefore the cross-sectional area of the air flow going from the base upwards is progressively smaller thereby increasing the speed of Convective flow This mode allows greater air circulation in the environment, in this way increasing the total efficiency of the radiator. In the embodiment schematically illustrated in Figure 9, while the shape of each radiation member is, as mentioned above, substantially trapezoidal, its central portion 5 has parallel or extended sides, where the heated fluid, for example, circulating oil circulates. , that is, the region where the first and second metal plates are welded together by rolling. According to yet another variation of the embodiment, as schematically shown in Figure 10, while the shape of the radiation member is still trapezoidal, the shape of its central portion 5, where the heated oil circulates, has longitudinal sides substantially parallel to the edges of the radiation member, such that also the central portion has a substantially trapezoidal shape. Since the temperature at the edges near the lower base 41 is lower, this latter mode allows the oil channel to be expanded in order to obtain greater radiator efficiency and equalize its surface temperature. The two above embodiments allow the first metal plate to be mechanically worked and it is, for example, possible to form at least one fold 20 at its peripheral portion, the fold has a flange 21 at its edge. The first metal plate has hardening means on its surface and heat transfer limit means by convection of the central portion 5 where the oil circulates, towards its edges. The hardening means comprises a groove 22 extending at least along a portion of the first metal plate and in particular, as visible for example in Figure 4, extending from the lower base throughout the perimeter of each radiation member.

The slot 22 has a semi-channel shape and also has the advantage of limiting the convection heat transmission of the central portion of each radiation member, because the heat path length increases and therefore the surface area of the heat increases. dissipates the heat, and because in the regions with folds the metal sheet tends to be thinner which increases the passage of heat. The heat transfer limit means may also be defined by one or more holes 23 which may be arranged parallel to the central portion where the oil circulates or at an angle or in any suitable manner. The eyelet-shaped openings or holes 23 are also conveniently provided in the upper portion of the radiator in such a way as to form a grid directly provided in the first metal plate 3 of each radiation member of the radiator in order to prevent further stages of manufacture of the radiator. prior art as is the forming, storing, defatting, painting and mounting of the grids made separately from the radiation members and then associated with the radiating members once the radiator is finished. In addition to providing one or more elongated holes 23, adapted to form a grid, the upper portion of each radiation member may also be formed with the fold 20 and / or the flange 21 of the first metal plate 3 to create a radiator body uniformly similar to the functional and thermal properties mentioned above. Due to the fact that in each radiation member a top space is formed between the lattice surface and the bushings where the heated fluid flows from one member to the other, if necessary, the radiator can be provided with forced flow means for forcing a flow of air, such as for example a fan or air humidifier means, such as a humidifier, which is not illustrated. One or both ends of the radiator members can be provided with a cover, which is not illustrated in the drawings, adapted to close the radiator body both to stylize and prevent contact with the heated portions of the radiator by the user.

The present invention also relates to a process for manufacturing a mobile radiator and independent operation as described and illustrated above. In particular, each radiation member is made by forming a first metal plate and a second metal plate having different dimensions. In particular, as described above, the first metal plate 3 shown in Figure 12 has a larger size than the second metal plate 4 shown in Figure 11. By this forming operation, the first and second longitudinal impressions are made in the first and second metal plates; the first and second impressions have the same shape and are adapted to define, as detailed hereinafter, the cavity 5 where the fluid to be heated by the resistance will circulate. In particular, after the first and second longitudinal impressions have been made in the first and second metal plates, the plates are welded together electrically, by rolling, along a peripheral portion 50 of the second plate and the corresponding portion of the second plate. the first plate.

The soldier of the first and second plates allows the first and second impressions or shapes to be superimposed in this way by creating the cavity 5 to be able to heat the fluid. Then, it is possible mechanically to work the first plate by itself on its surface 8 which extends externally to the cavity containing the oil 5. In particular, the mechanical work of the. The surface of the first plate, made for example, in the radiator whose radiation member is shown in Figures 9 and 10, consists of at least one forming operation, shown in Figure 14., and then a cutting operation of the first plate, as also shown in Figure 14. After the cutting operation, a straightening operation is performed, shown in Figure 15, on the edge of the first plate, and then a cutting operation of the cut edge as shown in Figure 16. The same type of operation, described above, until the straightening operation is then also performed on the radiation member, for example, illustrated in FIG. Figures 6, 7 and 8.

In the latter case, after the forming and cutting operations (Figure 20) and the straightening operation (Figure 21), a pre-rolling operation is performed, shown in Figure 22, and then a rolling operation, as is shown in Figure 23, of the first plate. In both cases, the cutting operation to form the holes 23 in the first plate, both next to the portion containing heated fluid and on each radiation member to form the grid directly on the radiation members, which can perform - during any stage, according to the requirements, after welding the first metal plate to the second metal plate. It has been found in practice that the radiator according to the invention is particularly advantageous to allow forming a grid directly on the metal sheet of the radiation members in this way by eliminating the supplementary operations to provide the grid as in the prior art. Performing the mechanical work only on a plate allows work that is not possible on two plates as in the radiators of the prior art, and allows to manufacture a radiator which weighs less and thus is more easily moved from one room to another by the user and also allows to save material despite improving its efficiency, stylization and speed of manufacturing online. The radiator according to the invention is susceptible to various modifications and variations within the inventive concept, also all the details can be replaced by other technically equivalent elements. In practice, the materials used, as well as the dimensions, can be any according to the specific needs and the state of the art.

Claims (39)

1. A mobile and independently operating radiator, comprising a body having a plurality of radiation member, each defined by at least one first metal plate and one second metal plate associated with each other and at least one central portion where the heated fluid circulates at a temperature preset by heating means, the radiation members are mutually connected through passage bushings for the heated fluid for circulation within the body, each of the radiation members having at least one region of its surface, external to the central portion where the heated fluid circulates, having a wall thickness substantially equal to the thickness of the first metal plate and second me plate.

2. The radiator according to claim 1, wherein the first metal plate has dimensions greater than those of the second metal plate.

3. The radiator according to claim 2, wherein the first plate has seating means for the second metal plate.

4. The radiator according to claim 3, wherein the seating means comprises a seat having a size substantially equal to the size of the second metal plate.

5. The radiator according to the indication 4, wherein the first plate extends along a middle region of the central portion where the heated fluid circulates.

6. The radiator according to claim 5, wherein the first plate and the second plate are sealingly associated together along the peripheral region of the seat.

7. The radiator according to claim 6, wherein the central portion where the heated fluid circulates has an upper inclination defining a larger base portion to the upper portion.

8. The radiator according to claim 7, wherein the distance from the edge of the radiation member of the central portion is const ante.

9. The radiator - according to claim 8, wherein the first plate has at least one fold in its peripheral portion.

10. The radiator according to claim 9, wherein the bend has a flange at its edge.

11. The radiator according to claim 10, wherein the first plate has curing means on its surface, and convection heat transfer conveying means from the central portion to the edge.

12. The radiator according to claim 11, wherein the hardening means comprises a groove extending at least along a portion of the first metal plate.

13. The radiator according to claim 12, wherein the convection heat transfer limit means from the central portion to the edge is defined by the slots.

14. The radiator according to claim 13, wherein the convection heat transfer limit means from the central portion to the edge comprise a plurality of holes.

15. The radiator according to claim 14, wherein at least one fold and / or flange or slot-and / or holes are also formed in the upper portion of each of the radiation members to form a grid.

16. The radiator according to claim 15, comprising forced flow means for forcing an air flow.

17. The radiator according to claim 16, comprising air humidification means.

18. A mobile and independently operating radiator comprising a body having a plurality of radiation members, each defined by at least one first metal plate and a second metal plate associated with each other and at least one central portion wherein the fluid heated circulates at a temperature preset by heating means, the radiation members are mutually connected through passage bushings so that the heated fluid circulates within the radiation members and to heat the body, characterized in that each of the members Radiation has a higher inclination that defines a base portion greater than the upper portion.

19. The radiator according to claim 18, wherein the first metal plate has dimensions greater than those of the second metal plate.

20. The radiator according to claim 19, wherein the first plate has seating means for the second metal plate.

21. The radiator according to claim 20, wherein the seating means comprises a seat having a size substantially equal to the size of the second metal plate.

22. The radiator according to claim 21, wherein the first plate extends along a middle region of the central portion where the heated fluid circulates.

23. The radiator according to claim 22, wherein the first plate and the second plate are sealed together together along the peripheral region of the seat.

24. The radiator according to claim 23, wherein the central portion where the heated fluid circulates has an upper inclination defining a larger base portion to the upper portion.

25. The radiator according to the indication 24, wherein the distance from the edge of the radiation member of the central portion is constant.

26. The radiator according to claim 25, wherein the first plate has at least one fold in its peripheral portion.

27. The radiator according to claim 26, wherein the bend has a flange on its edge.

28. The radiator according to the rei indication 27, wherein the first plate has hardening means on its surface, and convection heat transferring means from the central portion to the edge.

29. The radiator according to claim 28, wherein the hardening means comprises a groove extending at least along a portion of the first metal plate.

30. The radiator according to claim 29, wherein the means of convective heat transmission limit from the central portion to the edge are defined by the slot.

31. The radiator according to claim 30, wherein the convection heat transfer limit means from the central portion to the edge comprise a plurality of holes.

32. The radiator according to claim 31, wherein at least one fold and / or flange and / or groove and / or holes are also formed in the upper portion of each of the radiation members in order to form a grid.

33. The radiator according to claim 32, comprising forced flow means for forcing an air flow.

34. The radiator according to claim 33, comprising means for humidifying the air.

35. A process for the manufacture of a mobile radiator and independent operation, characterized in that the manufacture of each radiation member of the radiator comprises the steps of forming a first metal plate and a second metal plate having different dimensions to be formed from these and a first longitudinal impression and a second longitudinal impression having the same shape; welding by lamination the first metal plate to the second metal plate along a peripheral portion of the second metal plate to superimpose the first and second longitudinal impressions so as to be able to define a cavity containing fluid to contain a fluid that will to be heated, finish the mechanical work of only the first plate on its surface that extends out of the cavity containing the fluid.

36. The process according to claim 35, wherein the mechanical work of the surface of the first plate comprises at least forming and cutting the plate.

37. The process according to claim 36, wherein the mechanical work comprises at least one de-riveting operation of straightening the cut edge of the first plate.

38. The process according to claim 37, wherein the mechanical work comprises after the straightening operation at least one step operation followed by a rolling operation of the first plate.

39. The process according to claim 38, comprising at least one cutting operation to form one or more holes in the first plate on its surface extending outwardly from the cavity containing the fluid.