Water dispenser abstract
A rapid electric heating water dispenser includes a body, a base,
an electric heating element located in the body, a hot water drain
valve and a hot water outlet. A water pipe and an electric heating
tube cling to each other through a casting body. A liquefaction
inner tube between the outlet of the aforesaid water pipe and the
hot water drain valve. The electric heating tube has a capacity
matched with the volume of the water pipe to heat the water passed
by to at least 75.degree. C. A water head is located between the
water inlet of the liquefaction inner tube and the water circuit
connected with it, and the water level of the liquefaction inner
tube should be higher than that of the water circuit.
Water dispenser claims
1. A electric heating water dispenser having a body, a base, an
electric heating element located in the body, a hot water drain
valve and a hot water outlet; on the lower part of the base, a bailer
connected with the hot water outlet successively through a hot water
pipe, said electric heating element and said hot water drain valve
comprising: said electric heating element includes a water pipe
and an electric heating tube which cling to each other through a
casting body; liquefaction inner tube located between the outlet
of the aforesaid water pipe and the hot water drain valve; the aforesaid
electric heating tube has the capacity matched with the volume of
the water pipe to heat the water passed by to at least 75.degree.C.
2. The rapid electric heating water dispenser as described in claim
1 further including that the above-said electric heating element
is composed of the upper electric heating element and the lower
electric heating element with the upper water pipe and the lower
water pipe in them connected together; while the upper electric
heating tube and the lower electric heating tube are paralleling
and connected to the power supply through the main switch installed
in the body; moreover, a high temperature switch installed in the
body is connected in series to the branch circuit of the upper electric
heating element.
3. The rapid electric heating water dispenser as described in claim
2 further including that the aforesaid upper water pipe's volume
can be 10 ml, the aforesaid upper electric heating tube's capacity
is 350 W-450 W, while the above-said lower water pipe's volume can
be 30 ml, the above-said lower electric heating tube's capacity
is 1350 W-1450 W.
4. The rapid electric heating water dispenser as described in claim
1 further including that there is a water head between the water
inlet of the liquefaction inner tube (the outlet of the heating
section) and the water circuit connected with it, and the water
level of the liquefaction inner tube should be higher than that
of the water circuit connected with it.
5. The rapid electric heating water dispenser as described in claim
2 further including that there can be installed a time switch on
the front panel of the aforesaid body as well as a one-way valve
in the pipe between the water inlet and the bailer; the upper and
lower electric heating tubes are connected to the power supply through
the time-delay opening contacts of the aforesaid time switch.
6. The rapid electric heating water dispenser as described in claim
5 further including that on the wall of the body below the hot
water outlet there can be installed a sensitive switch whose contacts
are connected in series to the heating wire of upper and lower electric
heating tubes.
7. The rapid electric heating water dispenser as described in claim
6 further including that the aforesaid water drain valve is located
at the bottom of the liquefaction inner tube and the aforesaid hot
water outlet is located on the water drain valve.
8. The rapid electric heating water dispenser as described in claim
1 further including that on the aforesaid casting body there can
be installed a thermal protection device and its contacts are connected
in series to the heating wire between the heating tube and the power
supply.
9. The rapid electric heating water dispenser as described in claim
1 further including that on the aforesaid casting body there can
be installed a thermostat and its contacts are connected in series
to the heating wire between the heating tube and the power supply.
10. The rapid electric heating water dispenser as described in
claim 1 further including that in the pipe between the bailer and
the water inlet there can be installed a triple nozzle whose third
nozzle is connected to the water outlet in the body through a drain
pipe.
11. The rapid electric heating water dispenser as described in
claim 3 further including that there can be installed a time switch
on the front panel of the aforesaid body as well as a one-way valve
in the pipe between the water inlet and the bailer; the upper and
lower electric heating tubes are connected to the power supply through
the time-delay opening contacts of the aforesaid time switch.
12. The rapid electric heating water dispenser as described in
claim 2 further including that on the aforesaid casting body there
can be installed a thermal protection device and its contacts are
connected in series to the heating wire between the heating tube
and the power supply.
13. The rapid electric heating water dispenser as described in
claim 3 further including that on the aforesaid casting body there
can be installed a thermal protection device and its contacts are
connected in series to the heating wire between the heating tube
and the power supply.
14. The rapid electric heating water dispenser as described in
claim 2 further including that on the aforesaid casting body there
can be installed a thermostat and its contacts are connected in
series to the heating wire between the heating tube and the power
supply.
15. The rapid electric heating water dispenser as described in
claim 3 further including that on the aforesaid casting body there
can be installed a thermostat and its contacts are connected in
series to the heating wire between the heating tube and the power
supply
16. The rapid electric heating water dispenser as described in
claim 2 further including that in the pipe between the bailer and
the water inlet there can be installed a triple nozzle whose third
nozzle is connected to the water outlet in the body through a drain
pipe.
17. The rapid electric heating water dispenser as described in
claim 3 further including that in the pipe between the bailer and
the water inlet there can be installed a triple nozzle whose third
nozzle is connected to the water outlet in the body through a drain
pipe.
Water dispenser description
TECHNOLOGY FIELD
[0001] This invention refers to a kind of water dispenser, especially
such a rapid electric heating water dispenser that can supply boiled
water rapidly when needed.
TECHNOLOGY BACKGROUND
[0002] A common water dispenser is composed of a body, a base,
a set of heating system, refrigeration system located in the body,
a water drain valve and a water outlet. On the lower part of the
base, there is a bailer connecting to the corresponding refrigeration
system and heating system through the cold water pipe and the hot
water pipe. While the outlets of the refrigeration system and heating
system are connecting to the relevant cold or hot water drain valve
and water outlet. Thus, when in usage, we only need to push the
corresponding water drain valve and then get the desired hot, cold
or common-temperature water. In this way, the water dispenser brings
great convenience for people. However, the heating system of the
aforesaid water dispenser usually uses the conventional hot inner
tube whose insulating property is not quite good under the limitation
of current structure and material. Therefore, when the water dispenser
is on, the temperature of boiled water will decrease with the time
if water is not drunk timely. Actually, the water drunk is limited
everyday. Consequently when the temperature of the boiled water
in the dispenser decreases to certain degree (for example 80.degree.
C.), the dispenser will reheat the boiled water, that is to say,
there is a phenomenon of reheating of water whose defections are
as follows: 1) It will cause a great loss of nutrient contents such
as mineral substance and an increase of nitrite ion and thus do
harm to health. 2) The deposit and fouling of the mineralizer generated
by mineral substance on the surface of the heating pipe will reduce
the heating efficiency of the heating pipe and waste electrical
energy. At the same time, we have to take the trouble to clear the
inner tube frequently. 3) Long time of consistent work will reduce
the lifetime of the electric heating tube. In order to deal with
these defections, we have to cut the power of the water dispenser
when not used and power it when needed. But in so doing, we have
to wait for a relatively long time to heat the water to a desired
temperature. Obviously, such kind of water dispenser is not quite
convenient.
[0003] To overcome the above-mentioned defections, a kind of water
dispenser has been developed to provide boiled water instantly.
For example, the China Patent Number 99223771.8--the instant boiled
water dispenser is such a kind of water dispenser. It is consisted
of a main body, a water tank in the upper part of the main body
and a rapid heater in the lower part of the main body. The heater
is composed of a UHT electric heating tube and several spiral baffle
boards assembled into a heating tank whose water inlet is interlinked
with the outlet of the water tank while its water outlet is connected
with the hot water funnel through a guide pipe. Though such kind
of device can provide instant boiled water timely, it can not match
with delicate multi-purpose household water dispensers due to its
big size, complicated structure and insulation layer additionally
used.
CONTENT OF INVENTION
[0004] The technical problem this invention to deal with is to
come up with a kind of rapid electric heating water dispenser which
is small in size, compact in structure and easy to use as well as
energy saving based on the current technology.
[0005] The technical scheme applied in this invention to solve
the above problem is as follows: this kind of rapid electric heating
water dispenser is consisted of a body, a base, an electric heating
element located in the body, a hot water drain valve and a hot water
outlet. On the lower part of the base, there is a bailer connected
with the hot water outlet successively through hot water pipe, electric
heating element and hot water drain valve. Its feature is as below:
the above-said electric heating element is composed of a water pipe
and an electric heating tube which cling to each other through a
casting body. There is a liquefaction inner tube between the outlet
of the aforesaid water pipe and the hot water drain valve. The aforesaid
electric heating tube has the capacity matched with the volume of
the water pipe to heat the water passed by to at least 75.degree.
C.
[0006] The above-said electric heating element is composed of the
upper electric heating element and the lower electric heating element
with the upper water pipe and the lower water pipe in them connected
together. While the upper electric heating tube and the lower electric
heating tube are paralleling and connected to the power supply through
the main switch installed in the body. Moreover, a high temperature
switch installed in the body is connected in series to the branch
circuit of the upper electric heating element.
[0007] The aforesaid upper water pipe's volume can be 10 ml, the
aforesaid upper electric heating tube's capacity is 350 W-450 W,
while the above-said lower water pipe's volume can be 30 ml, the
above-said lower electric heating tube's capacity is 1350 W-1450
W.
[0008] There is a water head between the water inlet of the liquefaction
inner tube (the outlet of the heating section) and the water circuit
connected with it, and the water level of the liquefaction inner
tube should be higher than that of the water circuit connected with
it.
[0009] There can be installed a time switch on the front panel
of the aforesaid body as well as a one-way valve in the pipe between
the water inlet and the bailer. The upper and lower electric heating
tubes are connected to the power supply through the time-delay opening
contacts of the aforesaid time switch. In so doing, automatic power
and water cut-off can be achieved and consequently it is easier
to operate.
[0010] On the wall of the body below the hot water outlet there
can be installed a sensitive switch (the cup accuses switch) whose
contacts are connected in series to the heating wire of upper and
lower electric heating tubes.
[0011] On the aforesaid casting body there can be installed a thermal
protection device and a thermostat and their contacts are connected
in series to the heating wire between the heating tube and the power
supply.
[0012] In the pipe between the bailer and the water inlet there
can be installed a triple nozzle whose third nozzle is connected
to the water outlet in the body through a drain pipe. In so doing,
it is convenient to clear the water dispenser.
[0013] Compared with current technology, this invention enjoys
the following advantages: since the water pipe and the electric
heating tube which compose the electric heating element are integrated
into a whole through the casting body, they are compact in structure,
small in size and fit for current water dispensers. In the mean
time, thanks to the appropriate capacity of the electric heating
tube, drinking water will be heated rapidly when it flows through
the pipe. Moreover, due to water head between the outlet of the
heating section and the water circuit, water can not enter the liquefaction
inner tube and flow out through the seal valve unless the water
temperature rises to certain degree and the swelling capacity of
the water is high enough to make up for this water head. Therefore,
it is energy saving, quite easy to use as well as providing high-temperature
drinking water. Moreover, it has completely solved the problem of
reheating water in common water dispensers, and thus has avoided
loss of nutrition content in water. In addition, the two-section
heating application of upper heating element and lower heating element
makes the heating system more sophisticated and therefore meets
people's needs all the better. In conclusion, this invention is
worth applying on the current water dispensers for its compact structure,
large volume of water output and convenient operation.
DRAWING ILLUSTRATIONS
[0014] FIG. 1 is the structural representation of the implementing
example of this invention.
[0015] FIG. 2 is the structural representation of the upper electric
heating element of the implementing example of this invention.
[0016] FIG. 3 is the structural representation of the lower electric
heating element of the implementing example of this invention.
[0017] FIG. 4 is the sectional view of FIG. 3.
CONCRETE METHODS OF IMPLEMENTATION
[0018] Next we will elaborate on the invention with reference to
the illustrations
[0019] Just as shown in FIG. 1.about.3 this water dispenser is
composed of a body, a base 10 (intelligent base), a set of heating
system, refrigeration system and water drainage device located in
the body. On the lower part of the base, there is a bailer 11 while
the heating system and refrigeration system are located in the middle
part of the body where there is a hollow in the front panel to place
the cup holder and the cup 1. The lower part of the water dispenser
can be made into a disinfection cabinet or a refrigerated cabinet
as desired. The above-mentioned refrigeration system is consisted
of a cold water pipe 13 a cold inner tube, a cold water drain valve
and a cold water outlet, while the heating system is composed of
a hot water pipe 16 made of silicone tube, an electric heating element,
a liquefaction inner tube 3 a hot water drain valve 2 and a hot
water outlet. The electric heating element is consisted of a slug-shaped
upper electric heating element 5 which includes a stainless-steel
upper water pipe 27 and upper electric heating tube 25 and an approximately
U-shaped lower electric heating element 19. As shown in FIG. 2
the upper water pipe 27 and upper electric heating tube 25 are integrated
into one whole through the upper aluminum casting body 26 and on
the two ends of the heating tube 25 there are installed electric
connecting terminals 24. Equally, as shown in FIG. 3 and FIG. 4
the lower electric heating element 19 includes a U-shaped stainless-steel
lower water pipe 30 and a lower electric heating tube 28 which are
integrated together through the lower aluminum casting body 29.
There are also fixed electric connecting terminals 24 on the two
ends of the lower electric heating tube 28. The upper and lower
electric heating tubes in the upper and lower heating elements are
connected in parallel through their respective electric connecting
terminals and then connected to power supply through the main switch
12 located on the back of the body. Moreover, there is a high temperature
switch 14 installed on the back of the body which is connected in
series to the branch circuit of the upper electric heating element
5. The upper and lower water pipes in the upper and lower electric
heating elements are joined together through a silicon tube 15.
The outlet of the upper water pipe 27 is linked with the liquefaction
inner tube 3 which is located in the body above the cup 1. As a
seal valve, the hot water drain valve 2 is located on the bottom
of the liquefaction inner tube 3. Its outlet is known as the hot
water outlet which is corresponding with the through hole in the
cover of the cup 1. The liquefaction inner tube 3 hot water drain
valve 2 and hot water outlet are designed for the sake of liquefaction
of the high-temperature stream out of the heating section, easy
control of hot water takeoff and sealing the inner water circuit
to prevent pollution. In addition, between the liquefaction inner
tube 3 and the bailer 11 there is a return air pipe 9 on which
the second one-way valve 8 is installed to prevent the backsiphon
of the hot water during heating. In this way, the water in the bailer
11 flows to the hot water outlet successively through hot water
pipe 16 lower water pipe. 30 silicon tube 15 upper water pipe
27 liquefaction inner tube 3 and hot water drain valve 2. In this
implementing example, in order to rapidly heat the drinking water
flowing by the lower water pipe to 75.degree. C..about.80.degree.
C., the volume of the lower water pipe 30 is designed into 30 ml
and correspondingly the capacity of the lower electric heating tube
28 is chosen as 1400 W. However, it can be 1350 W or 1450 W. It's
ok to reach the temperature for coffee drinking. Meanwhile, the
volume of the upper water pipe 27 is designed into 10 ml and the
capacity of the upper electric heating tube 28 is decided as 400
W. By the same token, the capacity of the upper electric heating
tube can be 350 W or 450 W. In so doing, when the upper and lower
electric heating elements are working at the same time, the water
temperature in hot water outlet can be more than 85.degree. C. for
tea-making.
[0020] For automatic control of the water output and heating time,
in this implementing example, there is a time switch 4 on the front
panel of the body. In the hot water pipe 16 a one-way valve 21
is installed to prevent hot water from flowing back to the bailer.
Meanwhile time-delay opening contacts of this time switch 4 are
also connected in series to the heating wire of the upper and lower
electric heating tubes to exercise control on the heating time and
water output. The seal status of the hot water-drain valve 2 after
taking out the cup 1 will prevent such bum accident caused by flowing-out
of remaining hot water in the liquefaction inner tuber. Moreover,
in the front panel near the hollow, there is a sensitive switch
17 to prevent damages caused by heating when the hot water drain
valve 2 does not pushed open by the cup 1. The contacts of the sensitive
switch are also connected in series to the heating wire of the upper
and lower electric heating tubes. In this way, the upper and lower
electric heating tubes will not begin heating unless the cup 1 triggers
the sensitive switch 17.
[0021] Furthermore, in order to prevent the upper and lower electric
heating tubes from heating without water, on the upper and lower
aluminum casting bodies there are respectively installed an upper
thermal protection device 7 and a lower thermal protection device
18 whose contacts are respectively connected in series to heating
wire between their own electric heating tube and the power supply.
Meanwhile, on the upper and lower aluminum casting bodies, there
are respectively installed an upper thermostat 6 and a lower thermostat
20 whose contacts are respectively connected in series to the heating
wire between their own electric heating tube and the power supply
to control the heating temperature of the heating tubes. Concerning
the cleaning of the pipe, in the hot water pipe between the one-way
valve 21 and the outlet of the lower water pipe 30 a triple nozzle
22 is installed with its third nozzle connecting to the water outlet
23 on the back of the body through the drain pipe. There is a cover
on the water outlet 23. In so doing, it is quite convenient for
periodic cleanings.
[0022] While in use, place the cup 1 on the cup holder with the
cover of the cup 1 pushing open the water drain valve 2 and the
cup body triggering the sensitive switch 17 to close the contacts.
The water barrel is placed on the base 10. The water flowing from
the base into the bailer 11 will divide into two channels. One of
the two channels is as follows: water flows successively through
the cold water pipe 13 the cold inner tube and cold water drain
valve and out of the cold water outlet. The opening and closing
of the cold water drain valve is controlled by the conventional
cold water drainage key. The other channel is as follows: water
flows successively through the hot water pipe 16 the one-way valve
21 the triple nozzle 22 the lower water pipe 30 the silicon tube
15 the upper water pipe 27 the liquefaction inner tube 3 and the
drain valve 2 and flows into the cup 1 through the through-hole
on the cup cover. The air in the lower and upper water pipes will
be drained out through the silicon tube, the liquefaction inner
tube 3 and the seal valve 2. When it needs heating, trigger the
main switch 12 the main power supply indicator will turn on. If
hot water of 75.degree. C..about.80.degree. C. is needed, turn the
time switch 4 clockwise. The heating indicator turns on and the
lower electric heating element 28 is in operation. In this implementing
example, the maximum timing is 3 minutes with an output of 1 liter
of hot water. The drinking water is rapidly heated and swells when
flowing through the lower water pipe 30. The hot water flows through
the silicon tube 15 the upper water pipe 27 to the liquefaction
inner tube 3 and into the cup through the seal valve 2. It only
takes 10 to 20 seconds from setting the time to water take-off.
When the time is up, the time delay opening contact of the time
switch 4 works to stop the lower electric heating element 28 from
heating, and the heating indicator goes off correspondingly.
[0023] If hot water of over 85.degree. C. is needed, press high
temperature switch 14 while pressing the main switch, then turn
the time switch 4 clockwise. By the same token, the heating indicator
and high temperature indicator turns on. The upper electric heating
element 25 and the lower electric heating element 28 work at the
same time. The drinking water flows through the lower water pipe
30 and is rapidly heated by the lower electric heating element 28.
When the hot water flows through the upper water pipe 27 again
it is rapidly heated by the upper electric heating element 25. Thus
the hot water being heated twice flows into the liquefaction inner
tube 3. In the end it flows into the cup through the seal valve
2 and the through hole on the cup cover. If the time is up, it
stops heating and supplying water. The indicator goes off at the
same time.
[0024] Water cannot enter the liquefaction inner tube and flow
out unless the water temperature rises to certain degree and the
swelling capacity of the water is high enough to make up for the
water head between the water outlet of the heating section and the
former water circuit.
[0025] Under the condition that the water of the barrel is used
up while one of the lower or upper heating pipes is still in work,
the temperature of the corresponding aluminum casting body will
rise rapidly. When it comes to a certain degree, the corresponding
thermal protection device will work to cut off the power supply
of respective electric heating tube and stop it from heating. In
this way it implements the function of protection. |