Abstrict
A heat conductive tubular electric heater is disclosed. In the
heater body, a water inlet tube is connected to a heat conductive
tube and an electric tube is installed within the heat conductive
tube so as to form a water path between a periphery of the electric
tube and an interior of the heat conductive tube. When the cool
water flows into the water inlet tube entering into the electric
heater, the cool water can be heated continuously by the electric
tube to increase it's a temperature thereof and is heated. Besides,
the heat conductive tube is assembled within a water storage tank
of the electric heater for being stored therein for further use.
The heater is worthy for industrial uses, because of some advantages
thereof, such as heating water fast, high thermal efficiency.
Claims
What is claimed is:
1. A heat conductive tubular electric heater comprising: a heater
body; a water storage tank installed within the heat body for storing
water; a water inlet tube assembled to the water storage tank for
supplying water; a heat conductive tube installed within a water
outlet tube; the heat conductive tube having multi-folds in the
water storage tank; an electric tube installed within the heat conductive
tube so as to form a water path between an periphery of the electric
tube and an interior of the heat conductive tube; one end of the
heat conductive tube being connected to the water outlet tube; and
a water drain tube having an water outlet opening for releasing
water into an interior of the water storage tank so as to leave
from the water conductive tube; a water outlet tube connected to
a predetermined position of the water storage tank so that water
can output from the water outlet tube, wherein the heat conductive
tube is formed with a plurality of positioning elements at a lower
side of the water storage tank for positioning the heat conductive
tube, a plurality of connecting elements at a lower side of the
water storage tank for connecting different parts of the water conductive
tube, and a plurality of retaining plates for retaining the water
positioning elements, wherein a water pump, a first tube and a second
tube are installed within the water storage tank; the one end of
the first tube 91 is connected to the bottom of the water storage
tank, and the other end thereof is connected to the water pump;
one end of the second tube is connected to water inlet tube, and
the other end is connected to the water pump.
2. The heat conductive tubular electric heater as claimed in claim
1, wherein a temperature sensing element is installed in the water
storage tank.
3. The heat conductive tubular electric heater as claimed in claim
1, wherein a heating indicator, a temperature controller and a switch
are installed at the body.
Description FIELD OF THE INVENTION
The present invention relates to a heat conductive tubular electric
heater, and in particular to a heater body can be used to heat cool
water by which the hot water can be obtained for taking a bath or
cleaning.
BACKGROUND OF THE INVENTION
Among many ways to heat water, both a gas heater and an electric
heater are usually used. The electric heater has already been more
and more popular recently since it can be installed conveniently
in many places. According to functions of the electric heaters,
electric heaters can be divided into two modes, one is a storage
mode and the other is an instant heating mode. The disadvantages
of a storage heater includes its large size, high price, slow heating.
Besides, the hot water stored in a storage heater needs to be kept
warm all day long, which causes electric energy to be wasted. In
use, the temperature of the hot water will decrease abruptly, because
the hot water was not drained out by its heating sequence and was
mixed with the entering cool water. For an instant heating heater,
it is difficult to adjust a suitable temperature for usage. Although
a multi-stage temperature adjuster can be used in an instant heating
heater, it is also inconvenient during changes of whether. If the
temperature adjuster is installed, the power of the instant heating
heater cannot be turned on by a faucet to heat the cool water. In
addition, the instant heater needs a great quantity of electric
current which causes waste of electric energy.
SUMMARY OF THE INVENTION
The primary object of the present invention is to provide an ideal
and practical electric heater. The advantages of the electric heater
includes fast heating, and efficient heating, which also includes
the advantages of the prior art storage heaters and instant heaters.
To achieve above objects, the present invention provides a heat
conductive tubular electric heater. In the heater body, a water
inlet tube is connected to a heat conductive tube and an electric
tube is installed within the heat conductive tube so as to form
a water path between a periphery of the electric tube and an interior
of the heat conductive tube. When the cool water flows into the
water inlet tube entering into the electric heater, the cool water
can be heated continuously by the electric tube to increase its
temperature and become hot water. Besides, the heat conductive tube
is assembled within a water storage tank of the electric heater,
by which the hot water can be stored for waiting usage.
The various objects and advantages of the present invention will
be more readily understood from the following detailed description
when read in conjunction with the appended drawing.
BRIEF DESCRITION OF THE DRAWINGS
FIG. 1 is a perspective view of the present invention.
FIG. 2 is a schematic view showing the internal structure of the
present invention.
FIG. 3 is a perspective view showing a partial structure of the
invention.
FIG. 4 is a schematic view showing the operation of the invention.
FIG. 5 is a schematic view showing the pumping operation of the
present invention.
FIG. 6 is a partial enlarged view of FIG. 5.
DETAILED DESCRIPTION OF THE INVENTION
Referring to FIGS. 1, 2, and 3, the heat conductive tubular electric
heater of the present invention is illustrated. The heat conductive
tubular electric heater has the following elements. A body 5 has
a water storage tank 10. A water inlet tube 6 and a water outlet
tube 8 are assembled to the body 5. The water inlet tube 6 is connected
to the water storage tank 10. A heat conductive tube 12 extends
from a portion that the water inlet tube 6 enters into the water
storage tank 10. The heat conductive tube 12 is multi-folded in
the water storage tank 10. A heat electric tube 20 is arranged within
the heat conductive tube 12. A water path is formed in a space between
an outer periphery of the electric tube 20 and an inner side of
the heat conductive tube 12. A water outlet tube 16 is installed
at a distal end of the heat conductive tube 12 for inputting hot
water into the water storage tank 10. It is preferably that the
water drain tube 16 is faced upwards.
The heat conductive tube 12 may be installed with positioning elements
11, connecting elements 13, and retaining plates 19. A temperature
sensing element 4 is installed within the water storage tank 10
for measuring the temperature of an interior of the water storage
tank 10. Furthermore, a heating indicator 1, a temperature controller
2 and a switch are installed at the body 5 for displaying the operation
states.
Referring to FIGS. 3 and 4, the operation of the present invention
will be described. In operation, cool water enters into the water
drain tube 16 and passes through an interior of the positioning
element 11 to be guided into the heat conductive tube 12. Since
the electric tube 20 is installed within the heat conductive tube
12, cool water is heated continuously and sufficiently so as to
increase the temperature thereof so as to become hot water. Then
the hot water is filled into the water storage tank 10 to be used
afterwards. In use, the hot water flows out of the water outlet
tube 8 of the water storage tank 10.
In the present invention, the heat conductive tube 12 is used to
heat cool water. The cool water is heated by flowing through some
distances of the heat conductive tube 12. In particular, the water
flows through the small tube and nearly closes to the heat electric
tube 20. Thus, the water is heated efficiently in a very short time.
Dirt will not be left in the water storage tank 10 after water flows
through it. Surplus water can be stored in the water storage tank
10 so as to supply instant hot water for using conveniently without
limitation of times of uses. In addition, the cool water is heated
sequentially by flowing through the tube, then the hot water is
sent to the water storage tank 10. Thus, cool water and hot water
will not be mixed to enhance heating efficiently.
The hot water is stored in water storage tank 10 after it flows
through the water drain tube 16. If the hot water is not used immediately,
then the hot water will cool down. Referring to FIGS. 2 and 3, a
water pump 9, a first tube 91 and a second tube 92 are installed
within the water storage tank 10 in order to efficiently use the
cool water stored in water storage tank 10 for next time use and
also to heat the cool water uniformly and quickly. One end of the
first tube 91 is connected to a bottom of the water storage tank
10 on a predetermined, and the other end is connected to the water
pump 9. One end of the second tube 92 is connected to water inlet
tube 6 on a predetermined, and the other end is connected to the
water pump 9. In ordinary situation, the water pump 9 is not actuated,
and thus both the first tube 91 and the second tube 92 are not actuated,
as illustrated in FIG. 4. While the electric heater is turned on
for preheating the cool water for future usage, the water pump 9
is actuated. The cool water which stored in water storage tank 10
is inputting into the first tube 91, pumping it from water pump
9 to the second tube 92 and delivering it to the water inlet tube
6. Then the cool water is entered into heat conductive tube 12 to
be heated by the electric tube 20, by which the cool in the electric
heater can be heated circularly, as illustrated in FIGS. 5 and 6.
Because the heat conductive tube 12 of the electric heater has already
been heated by the electric tube 20 for a time period, it should
be warmed up to a higher temperature. When the cool water enters
into the water inlet tube 6 and then to be guided into the heat
conductive tube 12, the cool water is heated as soon as possible.
Therefore, the electric energy will not be wasted too mush for heating
by the electric tube. So the present invention has several advantages,
such as heating fast, saving electric energy and high thermal efficiency.
Because the water temperature is detected by the temperature sensing
element 4, the temperature sensing element 4 can control automatically
the heating operation of the heat conductive tube 12. Thus the surplus
water in the water storage tank 10 can be used efficiently and be
heated evenly. The invention matches the the requirement for saving
water by which the cool water does not be drained out and causes
waste at the beginning of usage.
The present invention is thus described, and it will be obvious
that the same may be varied in many ways. Such variations are not
to be regarded as a departure from the spirit and scope of the present
invention, and all such modifications as would be obvious to one
skilled in the art are intended to be included within the scope
of the following claims. |