JPH0670848A - Pot device - Google Patents

Abstract

PURPOSE:To stably feed out hot water with a fixed quantity by preventing gas from collecting in a motor-driven pump, even in the course of boiling, in the pot device provided with the motor-driven pump in a liquid discharge path extending from a liquid containing chamber to a pouring-out port. CONSTITUTION:In a liquid discharge path 42, a separating case 56 is provided in the upper part and the downstream side of a motor-driven pump 47, and a bypass path 64 is provided extending from the lower part of the separating case 56 to the upstream side of the motor-driven pump 47 in the liquid discharge path 42. This bypass path 64 is formed more thinly than a communicating pipe 61 extending from the motor-driven pump 47 to an inflow port 58 of the separating case 56. At the time of pouring hot water in the course of boiling up, hot water containing foam goes into the separating case 56, in which gas 77 and hot water 76 are separated. From the lower part of the separating case 56, hot water 76 containing no foam goes into a casing 48 of the motor-driven pump 17. In such a way, the inside of this casing 48 can be filled with hot water.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pot device for boiling water to keep it warm, and more particularly to a pot device provided with a pump in a hot water passage from a liquid storage chamber.

[0002]

2. Description of the Related Art In the hot water discharge method of an electric pot device,
There are air-type hot water and electric hot water. The air-type hot water is provided with a bellows and a push button facing the liquid storage chamber at the top of the pot body, and when this push button is pressed to shrink the bellows, the hot water in the liquid storage chamber will move to the liquid storage chamber due to air pressure. It discharges from the pouring outlet in the upper part of the pot main body through the liquid outlet from the lower outlet. On the other hand, the electric hot water is
An electric pump is provided in the liquid discharge passage, and by driving the electric pump, hot water in the liquid storage chamber is discharged from the spout through the liquid discharge passage. As the electric pump, for example, one in which an impeller driven to rotate by a motor is provided in a casing is used. And, the conventional electric hot-water electric pot device has a structure in which the discharge port of the electric pump is directly connected to the spout by a pipe. A pipe-shaped sheathed heater or a hot plate mica heater is used as the heating means for boiling and keeping the hot water in the liquid storage chamber. Air-type hot water is the mainstream, not the hot spring.

[0003]

However, in the above-described conventional electric hot water outlet device, since the discharge port of the electric pump is directly connected to the spout by a pipe, the following problems occur. That is, during boiling or immediately after the completion of boiling,
That is, when the electric pump is driven while bubbles are being generated in the liquid storage chamber, the bubbles in the liquid storage chamber are drawn into the casing together with the hot water. At that time, if the drive of the electric pump is continued without interruption, even though the hot water in the liquid storage chamber is being drawn in, air bubbles are also drawn in, so the proportion of bubbles in the casing gradually increases. Eventually, the inside of the casing approaches a no-load state, and the idler phenomenon of the impeller occurs. As a result, even if the impeller rotates, almost no hot water will be sent, and the hot water will stop halfway or a stable hot water discharge amount will not be obtained. It should be noted that such a phenomenon does not occur when the temperature of the heater portion and the hot water is lowered and becomes stable as in the case of stable heat retention, and does not cause a problem.

The present invention is intended to solve such a problem. Even during or immediately after the completion of boiling, a certain amount of a liquid such as water in the liquid storage chamber can be smoothly processed without interruption. It is an object of the present invention to provide a pot device capable of discharging from a spout.

[0005]

The pot device of the present invention comprises:
In order to achieve the above object, a pot main body having a liquid storage chamber built-in, and a liquid outlet for communicating an outlet provided in the pot main body at a lower portion of the liquid storage chamber with a spout opened to the outside of the pot main body. A passage, heating means for heating the liquid storage chamber, a pump provided in the liquid discharge passage, and a separation chamber provided at a position on the outlet side and above the pump in the liquid discharge passage, The lower part of the separation chamber is provided with a bypass passage that communicates the position of the liquid discharge passage on the liquid storage chamber side with respect to the pump.

[0006]

In the pot device of the present invention, a liquid, for example, water is stored in the liquid storage chamber in the main body of the pot, which is heated by the heating means to boil and keep the temperature. Then, in order to discharge the boiled hot water, the pump in the liquid discharge passage is driven. As a result, the hot water in the liquid storage chamber is discharged from the pouring outlet opened to the outside of the pot main body through the outlet in the lower part of the liquid storage chamber and the liquid outlet in the pot main body. By the way, when the pump is driven during boiling or immediately after the completion of boiling, that is, when the bubbles are generated in the liquid storage chamber, the bubbles are drawn into the liquid outlet. The bubbles that have entered the liquid discharge passage pass through the pump and enter the separation chamber located above the pump in the liquid discharge passage,
Here, the gas and the hot water are separated. That is, while gas accumulates in the upper part of the separation chamber, there is only hot water in the lower part of the separation chamber, but some hot water passes through the bypass passage from the lower part of the liquid storage chamber and is more than the pump in the discharge passage. Return to the position on the liquid storage chamber side. This prevents gas from accumulating in the pump.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the pot device of the present invention will be described below with reference to the drawings. In FIG. 2, reference numeral 1 denotes a pot body, and the pot body 1 is rotatably supported by a main body case 2 having an open top surface and an upper end of the main body case 2 by a hinge 3 to open and close the top surface opening of the main body case 2. It is provided with a lid body 4 that can be freely closed. An outer container 6 having a substantially bottomed cylindrical shape is fixed in the body case 2. As shown in FIG. 3, a hot plate mica heater device 7 as a heating means is provided in the lower part of the outer container 6. The hot plate type mica heater device 7 is provided with a mica heater 9 as a heat source on the back side of the hot plate 8. A cylindrical inner container 10 with a bottom is also detachably accommodated in the outer container 6, and the inner container 10 serves as a liquid storage chamber 11. A handle 12 is rotatably supported on the upper surface of the inner container 10. Further, although not shown in the drawing, the liquid storage chamber 11 is provided above the pot body 1.
An air passage is formed that allows the air to communicate with the outside air.

In addition, a first valve mechanism 16 and a second valve mechanism 17 which are detachable from each other are provided at the centers of the lower surface portions of both the containers 6 and 10. As shown in FIGS. 4 and 5, the first valve mechanism 16 provided in the outer container 6 is
Has an outer cylinder (18) vertically and liquid-tightly penetrating the lower surface of the valve body (21) via a disc (20) having a circulation port (19) in the outer cylinder (18).
Is supported so that it can move up and down. This valve body 21 has an outer cylinder 18
The valve seat (22) formed in the lower part of the inside has a valve part (24) that contacts from below via a seal ring (23). Furthermore, the valve body
The spring 21 is constantly urged in the upward direction, that is, the closing direction, by a spring 26 mounted between a flange 25 formed on the upper portion of the disk 21 and the disk 20. On the other hand, the second valve mechanism 17 is
The outer cylinder 18 vertically and liquid-tightly penetrates the lower surface of the inner container 10.
There is an inner cylinder 27 that can be inserted into and removed from the inner cylinder 27, and a seal ring 28 that is in liquid-tight contact with the inner peripheral surface of the outer cylinder 18 is attached to the outer peripheral surface of the inner cylinder 27. A valve body 31 is supported in the inner cylinder 27 via a disc 30 having a flow port 29 so as to be vertically movable. The valve body 31 includes a valve portion 34 that abuts against a valve seat 32 formed in an upper portion of the inner cylinder 27 from above via a seal ring 33.
At the top. Further, the valve body 31 is constantly urged downward, that is, in the closing direction, by the spring 36 mounted between the disc 35 and the flange 35 formed on the lower portion thereof.

The lower end of the outer cylinder 18 forms an outflow port 41 of the liquid storage chamber 11, and this outflow port 41 is provided in the main body case 2 as shown in FIG. Through a passage 42, the protrusion 43 provided on the front side of the upper end of the main body case 2 communicates with a spout 44 that opens downward. Next, the liquid outlet 42 will be described in detail mainly with reference to FIG. One end of the joint pipe 46 made of rubber is fitted and connected to one end of the outer cylinder 18, and the other end of the joint pipe 46 is of an electric pump 47 located below the containers 6 and 10. It is connected to an inflow port 49 on the end surface of the casing 48. The electric pump 47 is provided with an impeller 51, which is rotationally driven by a motor 50, inside a casing 48, and by the rotation of the impeller 51, the casing
It is sent out from the inflow port 49 of 48 to the discharge port 52 on the side surface portion of the same casing 48. Further, in the main body case 2, there is provided a cylindrical separation case 56 which is located higher than the casing 48 of the electric pump 47 and whose both ends are closed. The inside of the separation case 56 is a separation chamber 57, which has an inflow port 58 and a return port 59 located slightly lower than the inflow port 58 in the lower portion, and also has an outflow port.
It has a 60 at the top. The discharge port 52 of the casing 48 and the inflow port 58 of the separation case 56 are connected via a communication pipe 61. Also, the return port of the separation case 56.
One end of the bypass pipe 62 is connected to 59, and the other end of the bypass pipe 62 is connected to the intermediate side surface of the joint pipe 46 via a connection pipe 63. That is, inside the bypass pipe 62, the lower part of the separation chamber 57 is
It is a bypass passage 64 that communicates with the inside of 46. The diameter A of the bypass pipe 62 and the diameter B of the communication pipe 61 must satisfy the relation of A <B.
Is about 4 mm and B is about 10 mm. The inner volume of the separation case 56 is about 8 cm ³ . Further, a communication pipe 66 to the spout 44 is connected to the outlet 60 of the separation case 56 via a connection pipe 65.

As shown in FIG. 3, a control unit 71 is provided in the lower portion of the main body case 2. This controller
Reference numeral 71 is for performing all controls such as driving of the electric pump 47. Furthermore, a push button 72 biased upward is provided on the upper surface of the lid body 4.
The electric pump 47 is adapted to be activated when 72 is pushed down.

Next, the operation of the above configuration will be described. In order to store a liquid, for example, water in the liquid storage chamber 11 in the pot body 1, first, the lid 4 is rotated and opened, and the handle 12
Using, the inner container 10 is taken out of the outer container 6 of the main body case 2. Then, only this inner container 10 is carried to, for example, a faucet, and water is put into the inner container 10.
Then, after carrying the inner container 10 and placing it in the outer container 6, the lid 4 is rotated and closed. By the way, when the inner container 10 is taken out from the outer container 6 as shown by the chain line in FIG. 3, in the second valve mechanism 17 of the inner container 10, as shown in FIG.
The valve body 31 is lowered by the seal ring 33 of the valve portion 34.
Comes into contact with the valve seat 32 of the inner cylinder 27, and the inside of the inner cylinder 27 is closed.
This prevents water from leaking from the inner container 10 through the inner cylinder 27. On the other hand, the first valve mechanism 16 of the outer container 6
, The spring 26 raises the valve body 21 and
The seal ring 23 of 24 contacts the valve seat 22 of the outer cylinder 18, and this outer cylinder
The outlet 41 in 18 is closed. This makes this outlet
Air is prevented from entering the liquid outlet 42 via 41, and the water accumulated in the liquid outlet 42 is prevented from leaking into the outer container 6. As shown by the solid line in FIG. 3, when the inner container 10 is mounted inside the outer container 6,
As shown in, the inner cylinder 27 on the inner container 10 side is the outer cylinder on the outer container 6 side.
While being inserted into the valve 18, the valve bodies 21 of both valve mechanisms 16 and 17,
The flanges 25 and 35 of 31 hit each other, and the two valve bodies 21 and 31 press each other. As a result, the valve body 31 on the inner container 10 side rises against the spring 36, the valve portion 34 moves away from the valve seat 32 of the inner cylinder 27, and the valve body 21 on the outer container 6 side resists the spring 26. Is lowered, its valve portion 24 separates from the valve seat 22 of the outer cylinder 18, and the inner cylinder 27
The outlet 41 in the inner and outer cylinders 18 is opened, and the inside of the inner container 10 communicates with the liquid outlet 42.

When the power is turned on, the mica heater 9 starts to be energized, the temperature of the hot plate 8 rises, and the inner container
10 is heated. The water inside the container is heated through the inner container 10, and the water proceeds to boiling. After the water has boiled, the mica heater 9 is controlled according to the temperature detected by a temperature sensor (not shown), and the hot water in the inner container 10 is maintained at an appropriate temperature, for example, about 98 ° C.

In addition, in order to release the hot water in the inner container 10,
Push the push button 72 on the operation unit. While the push button 72 is being pressed, the electric pump 47 operates under the control of the control unit 71. That is, the drive of the motor 50 causes the impeller 51 in the casing 48 to rotate in the direction indicated by the arrow C.
Due to the rotation of the impeller 51, the hot water in the inner container 10 passes through the valve mechanisms 16 and 17 that are open from the outlet 41 to the liquid outlet 42.
And then discharged from the pouring outlet 44 through the liquid outlet 42. More specifically, as shown by the arrow in FIG. 1,
The hot water discharged from the outlet 41 flows to the outlet 44 through the joint pipe 46, the casing 48 of the electric pump 47, the communication pipe 61, the separation chamber 57 and the communication pipe 61. At this time, a part of the hot water 76 remaining in the separation chamber 57 flows back from the joint pipe 46 into the casing 48 of the electric pump 47 through the bypass passage 64, but the diameter A of the bypass pipe 62 and the communication pipe 61. Since there is a relation of A <B with the diameter B of the separation chamber 57
All of the hot water 76 that has entered the inside does not flow back into the casing 48, and the hot water flows out from the spout 44.

By the way, when the electric pump 47 is driven during boiling or immediately after the completion of boiling, that is, while bubbles are being generated in the inner container 10, the bubbles generated in the inner container 10 are discharged together with hot water. It is drawn into the road 42. The air bubbles that have entered the liquid discharge passage 42 pass through the casing 48 of the electric pump 47 and further enter the separation chamber 57. In the separation chamber 57, the gas 77 and the hot water 76 are separated. That is, the gas 77 is almost the same as the separation chamber 57.
, While the lower part of the separation chamber 57 has only hot water. Then, as described above, only the hot water 76 containing no bubbles returns to the joint pipe 46 from the lower part of the separation chamber 57 through the bypass passage 64 and is recirculated into the casing 48 of the electric pump 47, which continuously flows. Casing by continuing
Gas is prevented from collecting in 48. In this way, the casing 48 of the electric pump 47 is kept filled with hot water, and the impeller 51 is prevented from idling. As a result, as long as the hot water in the inner container 10 is not exhausted, a constant amount of hot water is always smoothly and stably poured by the electric pump 47 without causing a stop midway, even during or immediately after the completion of boiling. You can send up to 44.

The present invention is not limited to the above embodiment, but various modifications can be made. For example,
Although the pot device of the above-described embodiment has the removable inner container, the present invention can of course be applied to a container in which the liquid container is not removable. Further, the heating means is not limited to the hot plate type mica heater device.

[0016]

According to the present invention, in the pot device in which a pump is provided in the liquid outlet passage from the lower outlet of the liquid storage chamber in the pot body to the spout opening to the outside of the pot body, the liquid outlet passage is provided. In addition, a separation chamber is provided at a position above and above the pump, and a bypass passage that connects the lower portion of this separation chamber and the position in the liquid discharge passage that is closer to the liquid storage chamber than the pump is provided. Even if gas is drawn into the liquid discharge path by driving the pump during or immediately after the completion of boiling, the liquid is supplied to the pump from the lower part of the separation chamber where only the liquid accumulates through the bypass path, and It is possible to prevent the gas from accumulating in the nozzles, and therefore, it is possible to always stably discharge a fixed amount of the liquid from the discharge port without causing a break.

[Brief description of drawings]

FIG. 1 shows an embodiment of a pot device of the present invention,
It is sectional drawing of a pump and a separation chamber part, and is from the a arrow in FIG.

FIG. 2 is a side view of the same as above.

FIG. 3 is a sectional view of the vicinity of the same container.

FIG. 4 is a sectional view showing a state in which the first valve mechanism and the second valve mechanism are separated from each other.

FIG. 5 is a sectional view showing a state in which the first valve mechanism and the second valve mechanism are connected to each other.

[Explanation of symbols]

 1 Pot Main Body 7 Hot Plate Type Mica Heater Device (Heating Means) 11 Liquid Storage Chamber 41 Outlet 42 Outlet Channel 44 Pouring Out 47 Electric Pump (Pump) 57 Separation Chamber 64 Bypass Channel

Claims (1)

[Claims] 1. A pot main body containing a liquid storage chamber, and a liquid outlet passage provided in the pot main body for communicating an outflow port at a lower portion of the liquid storage chamber with a spout opening to the outside of the pot main body. Heating means for heating the liquid storage chamber, a pump provided in the liquid discharge passage, a separation chamber provided in the liquid discharge passage at a position higher than the pump and closer to the spout, and the separation chamber And a bypass passage communicating the lower portion of the liquid discharge passage with a position of the liquid discharge passage closer to the liquid storage chamber than the pump.