NOVEL METHOD OF SHIELDING HOT SURFACE AND IMROVING PANEL HEATERS

NOUVEAU PROCEDE DE PROTECTION DE SURFACE CHAUDE ET D'AMELIORATION DE PANNEAUX CHAUFFANTS

English Abstract

Novel method of shielding hot surface and improving panel heaters (1). The method relates to new system of shield comprising of shield (3) and corner pieces (2) that not only cover the hot surface of panel heaters (1) but also facilitates second path of convection currents for space heating by maintaining optimum current space.

French Abstract

La présente invention concerne un nouveau procédé de protection de surface chaude et de perfectionnement de panneaux chauffants (1). Ledit procédé se rapporte à un nouveau système d'écran de protection comprenant un écran (3) et des pièces d'angle (2) qui non seulement recouvrent la surface chaude des panneaux chauffants (1) mais facilitent également un second chemin de courants de convection pour chauffer l'espace par maintien d'un espace de courant optimal.

Claims

CLAIMS
1. A method to mount shield onto heater with hot exposed surfaces to create
secondary
convection current and to guard against touching hot surfaces by maintaining
minimum
gap of 20mm.
2. The shield as Claimed in Claim 1, can be placed at a fixed distance from
heating panel to
provide second convection current at with gap above 20°C to optimize
proportioning heat
dissipated by convection and radiation.
3. A shield as Claimed in Claim 1, can designed to cover, designed or complete
portion of
hot surface of panel
4. A shield as Claimed in Claim 1, with holes that further increases
proportion of radiant heat
and further reduces shield temperature.
5. A shield as Claimed in Claim 1, due to its lower temperature can be painted
or decorated
by any surface sticker
6. A shield as Claimed in Claim 1, can be changed at will with ease
7. The Complete Shield Assembly comprising of the Shield and the Corner piece
or the
Bracket Assembly Comprising of a Bottom Bracket Plate, a Vertical Plate to
hold the top
Bracket Plate and side Bracket Plate, having a Space to insert the Shield that
maintains
specified gap.
8. The Shield and Bracket Assembly as Claimed in Claim 6 can be of any
suitable heat
resistant material.
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9. The Corner piece or Bracket Assembly as Claimed in Claim 6 can be
suitably modified to
suit the size and shape of the Shield which in turn depends on the mounting
method of
heating panels.
10. The Bracket Assembly as Claimed in Claim 6, though is shown with separate
plates 1 to
the bracket as claimed can be moulded into one piece.
2

Description

CA 02960586 2017-03-08
NOVEL METHOD OF SHIELDING HOT SURFACE AND
IMROVING PANEL HEATERS
FIELD OF THE INVENTION
[001] This invention relates to new system of Shield that not only covers the
hot surface of panel
heaters but also facilitates second path of convection currents for space
heating.
PRIOR ART
[002] Fig IA represents the heating panel with mounting holes and Fig 1B
represents heating
panel mounted on mounting legs bolted to the wall. There are heaters
manufactured to have
dual convection air currents, however there is no heater with choice of single
and double
convection from same heater. Also we have not come across any prior art
converting panel
heaters into double convection heaters and with added safety.
[003] Location dedicated panel heaters are mounted with a gap against wall to
create natural
Convection Currents. The trapped air in between the electrically heated panel
and partition
walls gets heated. Hot air travels up to be replaced by cool air from bottom.
Thus, natural
Convection currents are formed and heat the space of the room.
[004] The visual surface of the panel radiates heat and is usually at
temperatures exceeding
80 C.This surface temperature is dependent upon the density of power for unit
area and the
temperature of ambient air. These surface temperatures will make the panels
hot to touch
although it will not cause burns. However it is inconvenient for kids and pets
and not acceptable
to some customers. This novel invention will make it safer and more
acceptable.
[005] Although the invention has been described below with reference to
specific embodiments,
this description is not meant to be construed in a limiting sense.
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OBJECT OF THE INVENTION
[006] The principal object of this invention is to convert all such heaters at
will by a shield that
forms second current of convection air and greatly reduce the surface
temperature on the shield
which is exposed to touch. It is necessary to determine optimum gap between
heater surface
and shield to proportion the heat dissipated by convection and radiation. This
is needed to
avoid over heating of the panel and components. Thus the objective is to
develop and place a
heat shield at a position that will not greatly increase panel temperatures
but will result in
comfortable temperatures on the surface of shield. The design developed is
unique that the
shield can be readily installed and removed with ease on mounting system of
panel when holes
are drilled and mounting legs are fixed on which a panel is mounted. There are
other panel
mounting methods also where same principle can be used to mount shield.
STATEMENT OF INVENTION
[007] According to this invention there is provided a process for preparation
of a Bracket
Assembly and shield that not only covers the hot surface of panel heaters but
also facilitates
second path of convection currents for space heating. The design developed is
unique that the
shield can be readily installed and removed with ease on compatible mounting
system of panel
when holes are drilled and mounting legs are fixed on which a panel is
mounted. Further
advantages of this invention will be evident from the detailed description.
The bracket
assembly determines the gap created between Shield and Panel surface.
[008] The present invention uses a uniquely designed corner mounting pieces
that can be slipped
on same mounting legs and the shield is then fixed in between these corner
pieces. The corner
piece is designed as in Figure 2.
[009] The Bracket Assembly consists of a Bracket Bottom Plate (1) as shown in
the Figure 2. On
this Bracket Bottom Plate a plate holding Bottom Plate (2) as shown in the
Figure 2 is fixed.
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A Vertical Plate (3) as shown in the Figure 2 to hold the bracket Plate is
mounted on the Bracket
Bottom plate. Top Bracket Plate (4) as shown in the Figure 2 is joined with
Vertical Plate 3
and Vertical Plate (4) as shown in the Figure 2 to hold the Bracket Plate. The
Bracket Assembly
has a Space (S) to insert the shield. The size or height and length of the
Corner piece or Bracket
Assembly can be varied to suit the size of the Shield and the area to be
protected. Although the
bracket is shown with separate plates, the bracket can be moulded into one
piece
[0010] After the panel is mounted on the wall fixing mounting legs, these
corner pieces are also
pushed on the mounting legs at bottom two positions and are secured by caps or
screws. The
shield will be inserted into two corner pieces on top and into already mounted
corner pieces at
bottom.
[0011] One typical method is illustrated for better understanding the novelty
and usefulness of this
invention. (Figure3)
[0012] Assuming mounting legs are fixed to partition wall, the panel is
mounted onto the mounting
legs as per normal practice. Then bottom corner pieces M & M 2 are pushed on
mounting leg
and the caps or other fixers are inserted. The shield of any suitable material
of corresponding
dimension is inserted into corner pieces M , & M 2. Top corner pieces are
placed on the shield
and the corner pieces are pushed onto top mounting legs. Cap or other fixer is
inserted. The
shield is in place with a gap determined by the construction of corner pieces.
As per Fig 3 it
will be thickness of (1) and (2) of Figure 2 added.
[0013] Experiments conducted to determine various gaps between panel surface
and shield give
temperatures differently.
The assembly with a density of heat 100w/sft is tested for temperatures and
typical results for
three gaps are shown below:
No guard. Guard with 12mm. Guard with 20mm. Guard with
30mm
Surface of panel: 85 to 90 C 135 C 90 C 85 C
Temperature on Guard: NA 48 C 58 C 55 C
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From the above results the guard should be placed with a minimum of 20mm gap
to proportion
second convection and radiant heat, so that the panel surface is not
significantly altered and
radiant heat maintains shield temperature of around 55 C which is safe.
Sequence of assembly is shown in Fig 3 and also shown is the panel with front
shield fixed
Figure 3.
Figure 4 represents typical shield. Other shapes can also be mounted. Shields
can be shaped to
choose the exposed portion of heating panel including zero exposure. The
corner pieces need
to be suitably modified.
The shield can have spacer-stopper suitably placed so that in case of push on
shield the load is
transferred to the rigid heating panel. These shields can also be coloured
using normal colours
or painted as desired and changed easily as per choice. Such shields can also
be fixed to
standing panel heaters by fixing on one or two sides of such panels. The
dimensions mentioned
are to illustrate as examples and are not limiting factors of this disclosure.
[0014] It is also observed that if the shield is provided with holes to have
about 10% area
perforated, temperature of heating panel further comes down without altering
guard
temperature significantly.
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Representative Drawing