Field of the Invention
[0001] The present invention relates to an electric heating radiator, comprising a body
made up of horizontal and vertical conduits housing resistors, and of external fins
attached to said conduits, the conduits and fins being metallic, preferably of aluminum.
Background of the Invention
[0002] Radiators of the type set forth are already known in which the body is made up of
at least two horizontal conduits, an upper and lower conduits, and a series of vertical
conduits running between the horizontal conduits, opening into them, the horizontal
conduits being closed at their ends. This body is completed with two series of external
cooling fins located on either side of the horizontal and vertical conduit assembly,
in a coplanar position on each side. The assembly thus formed is closed on the sides
by means of respective covers housing the control elements such as the on-off switch,
thermostats, etc.
[0003] It is also known that the assembly of the body is sub-divided, according to planes
that are perpendicular to the horizontal conduits, into equal independent modules,
each of which modules includes horizontal conduit sections, a vertical conduit running
between the horizontal conduit sections, opening into them, and two vertical cooling
fins running together with the vertical conduits, attached thereto. The horizontal
conduit sections have an internal threading in different directions from their end
sections. The attachment of consecutive modules is carried out by means of intermediate
bushings which externally and after their end sections have a threading in different
directions, coinciding with the inner threading of the horizontal conduit sections,
such that when these intermediate bushings are turned in the corresponding direction
they are screwed at the same time into the opposing ends of the horizontal tube sections
of two consecutive modules.
[0004] In these radiators the body made up of the horizontal and vertical conduits is filled
with oil or a similar thermal heat transfer fluid which is heated by means of resistors
installed inside the body. This requires that the closure of the ends of the horizontal
conduits be leak-tight for the purpose of preventing the heat transfer fluid from
leaking. In addition, the weight of these radiators is relatively high since the horizontal
and vertical conduit assembly is filled with oil or another similar heat transfer
fluid. It must finally be indicated that the fact that the radiated is filled with
oil entails an increase in the cost of the radiator.
Description of the Invention
[0005] The object of the present invention is to eliminate the problems set forth by means
of a radiator of the type indicated above but which does not have oil or a similar
heat transfer fluid, such that its weight corresponds only to that of the components
of the body, fins, side covers of the closure and resistors, its weight thus being
much lighter than that of traditional radiators.
[0006] The risk of leaks or losses of the heat transfer fluid is also reduced and the cost
of the radiator is reduced as it does not have this fluid.
[0007] According to the present invention, the lower horizontal conduit of the radiator
has a series of lower openings, each of which is located in extension of the vertical
conduits, such that the body of the radiator is not leak-tight, but rather it opens
at the lower part through the series of mentioned openings.
[0008] With this construction each of the modules forming the radiator will include the
horizontal conduit sections, preferably a lower section and another upper section,
a vertical conduit running between the upper and lower horizontal conduit sections
into which two vertical cooling fins open, a front fin and a rear fin, and a lower
opening under the horizontal conduit section and as an extension of the vertical conduit.
[0009] According to another aspect of the invention, an insulated resistor is housed in
each of the horizontal conduits of the radiator, which resistor is supported by the
intermediate bushings acting as connecting elements between consecutive modules. These
resistors are fed through taps traversing one of the closure covers of the ends of
the horizontal conduits.
[0010] The intermediate connecting bushings between consecutive modules can be internally
provided with ribs determining interlocking or support points for the resistors running
internally through each horizontal conduit. Each resistor is thus supported along
the horizontal conduit on each and every one of the connecting bushings between consecutive
modules.
[0011] The radiator further includes one or more additional resistors in an intermediate
position between the resistors housed in the horizontal conduits, parallel thereto.
These additional resistors traverse the vertical conduits through aligned holes made
in their walls, the resistors being adjusted to the contour of the holes and electrically
insulated in relation to the same.
[0012] The resistors will be single-tube resistors which are smooth or externally provided
with fins, for example with a spiral fin. They can further be jacketed in an aluminum
pipe in either case.
[0013] With the construction discussed, the resistors installed in the horizontal conduits
of the radiator, and the additional resistors where applicable, will heat the air
contained inside the same, being possible that at least part of this air will enter
or exit through the lower openings. The hot air contained in the radiator will directly
heat the walls of the different conduits and through these the cooling fins.
[0014] The arrangement of the resistors and the heating of the air contained in the radiator
will allow the temperature thereof to be uniform and the contained air to be completely
dry due to the heating of the same. As indicated, the radiator does not have oil or
any other similar heat transfer fluid, therefore its weight will be much lighter and
the manufacture thereof more cost-efficient.
Brief Description of the Drawings
[0015] The construction and features of the radiator of the invention will be better understood
with the following description made in reference to the attached drawings in which
a non-limiting embodiment is shown.
[0016] In the drawings:
Figure 1 is a perspective view of a radiator constructed according to the invention.
Figure 2 is a partial cross-section view of the radiator taken according to section
line II-II of Figure 1.
Figure 3 is a partial longitudinal section view of the radiator taken according to
section line III-III of Figure 1.
Figure 4 is a profile view of one of the intermediate connecting bushings between
consecutive modules.
Figure 5 is a view similar to that of Figure 1, showing an embodiment variant.
Figure 6 shows a perspective view of one of the modules forming the radiator of Figure
5.
Figures 7 to 10 show perspective views of other embodiment variants of the resistors.
Detailed Description of an Embodiment
[0017] Figure 1 shows a radiator including a body made up of two horizontal conduits, upper
conduit 1 and a lower conduit 2, between which a series of vertical conduits 3 runs,
opening into said horizontal conduits. The radiator further includes two series or
assemblies of cooling fins, front fins with reference number 4 and rear fins with
reference number 5, which are parallel and coincide with the vertical conduits 3.
[0018] This radiator assembly is sub-divided into modules, according to planes perpendicular
to the horizontal conduits 1 and 2, all this as can best be seen in Figure 3.
[0019] The lower horizontal conduit 2 has openings 6 thereunder which are located as an
extension of the vertical conduits 3.
[0020] With this construction, each of the modules forming the radiator comprises an upper
horizontal conduit section having reference number 7 in Figure 3, a lower horizontal
conduit section having reference number 8, a vertical conduit 3 running between and
opening into the horizontal sections 7 and 8, a front fin 4 and rear fin 5. The attachment
between consecutive modules is carried out by means of intermediate bushings 9. To
that end the horizontal sections 7 and 8 have inner threads in different directions
after their end sections. The intermediate bushings 9 externally have threads in different
after their end sections which are equal to the inner threads of sections 7 and 8.
Therefore, when the bushings 9 are turned in the corresponding direction, they will
be screwed into the end sections of the horizontal sections corresponding to consecutive
modules. When the different modules are attached, sections 7 form the conduit upper
1, while sections 8 form the lower horizontal conduit 2.
[0021] Each of the discussed modules will further include a lower opening 6, opposite to
the corresponding vertical conduit 3.
[0022] The horizontal conduit 1 and 2 and vertical conduit 3 assembly will thus open to
the exterior through the lower openings 6.
[0023] A resistor 10 is installed through each of the conduits 1 and 2, which resistor is
mounted in an end cap 11 which can be screwed onto the free end of the end bushing
9', acting as an upper closure cap. The electrical connections 12 will project from
this cap 11.
[0024] For the resistor to be perfectly positioned, the intermediate bushings 9 may internally
have ribs 12, Figure 4, which will be used as interlocking and support points for
the resistor 10, said resistor thus being in a centered position along conduits 1
and 2.
[0025] The radiator shown in Figure 1 can be completed with two closure covers which would
cover the vertical sides and hide the connections 12, one of the covers further bearing
the control elements or means, such as a switch, thermostats, operation signaling
pilot lamp, etc.
[0026] With the discussed construction, the body of the radiator, made up of the vertical
and horizontal conduits, opens to the exterior through the openings 6 and is completely
empty, such that its weight is lighter in relation to traditional radiators of the
same type which are filled with oil as the heat transfer fluid.
[0027] The heating of the resistors 10 causes the heating of the air contained in the radiator,
with freedom of expansion through the opening 6, causing the heating of the walls
of the horizontal conduits 1 and 2 and vertical conduits 3 and through the latter
the heating of the cooling fins 4 and 5.
[0028] Like the radiator of Figure 1, the radiator shown in Figure 5 is made up of independent
modules that can be placed against and fixed to one another in a manner similar to
that described in reference to Figure 3. One of these modules is shown in Figure 6.
[0029] As in the case of Figure 1, the radiator of the Figure 5 comprises an upper horizontal
conduit 1 and a lower horizontal conduit 2, with vertical conduits, which are not
shown, running between them. The radiator is completed with front fins 4 and rear
fins 5.
[0030] As can be seen in Figure 6, the modules forming this radiator include an upper horizontal
conduit section 7, a lower horizontal conduit section 8, a vertical conduit 3 running
between and opening into the horizontal sections 7 and 8, and a front fin 4 and rear
fin 5. The walls of the vertical conduit 3 have opposing holes 14 which, in the radiator
of Figure 5, will be aligned to receive other additional resistors 15, which will
be located parallel to the resistors mounted in horizontal positions 1 and 2. The
module of Figure 6 further has external fins 16 along the vertical conduits 3.
[0031] As in the case of Figures 1 to 3, the vertical conduits 3 are open at the bottom
through the opening 6.
[0032] Otherwise, the assembly of the radiator based on the modules of Figure 6 and the
mounting of the resistors is similar to that described in reference to Figures 1 to
3.
[0033] Figures 7 to 10 show other variants of resistors for the radiators of the Figures
1 and 5.
[0034] In the case of Figure 7 the resistor is a single-tube type resistor 17, with a head
18 configured to be coupled on the opening of the horizontal conduits 1 and 2 or on
the holes 14 of the additional resistors 15.
[0035] In Figure 8 the resistor is similar to that of Figure 7 but with an external spiral
fin 19.
[0036] The resistors of Figures 9 and 10 correspond with the construction of resistors 7
and 8, incorporating an external aluminum jacket 20.
1. An electric heating radiator, comprising at least two horizontal conduits, an upper
conduit and a lower conduit, closed at their ends; a series of vertical conduits running
between the horizontal conduits, opening into them; two series of external cooling
fins located on either side of the horizontal and vertical conduit assembly in coplanar
positions on each side; and two closure covers that can be coupled and fixed on the
sides of the assembly; said assembly being sub-divided, according to planes perpendicular
to the horizontal conduits, into equal independent modules, each of which includes
horizontal conduit sections, a vertical conduit running between the horizontal conduit
sections, opening into them, and two vertical cooling fins running in coinciding positions
with the vertical conduits and horizontal sections; said horizontal conduit sections
having an internal threading in different directions after their end sections for
connecting them by means of an intermediate bushing with an equal external threading
con in a different direction, also after its end sections, characterized in that the lower horizontal conduit has a series of lower openings, each of them located
in extension of one of the vertical conduits; and in that an insulated resistor is housed in each of the horizontal conduits, which resistor
is supported by the mentioned intermediate bushings.
2. A radiator according to claim 1, characterized in that the mentioned intermediate bushings internally have two diametrically opposed ribs
determining interlocking or support points for the resistor running through the inside
of each horizontal conduit.
3. A radiator according to claim 1, characterized in that it further includes one or more additional resistors, which are parallel to the resistors
housed in the horizontal conduits and traverse the different modules through aligned
holes made in the walls of the vertical conduits, between the two horizontal conduits.