JP5966254B2 - an electronic pot - Google Patents

Description

  The present invention relates to a passage structure through which steam and condensed water provided in the lid of an electric pot pass.

  The conventional electric pot has an inner container for putting water in the container body, the water in the inner container is heated by a heating means such as a heater provided on the outer surface of the bottom, and the heated and boiled hot water is heated at the bottom of the container body. Hot water is supplied from a hot water supply port via a hot water supply passage by an electric pump provided in the home, and is used in many homes.

  An electric pot is known in which a steam passage that communicates the inside of a container and a steam port is provided inside a lid so that excess steam is discharged to the outside (see, for example, Patent Document 1). . It is also conceivable to elongate this steam passage to lower the steam temperature and discharge it to the outside.

  By the way, when the temperature decreases, the steam condenses into condensed water and accumulates in the steam passage. For example, when the steam passage has a longer length, more water accumulates. Such water does not cause a special problem if the electric pot is in a normal installation state, that is, in an upright state, but for example, the electric pot tilts or falls down in a form in which the steam port is at the bottom. In such a case, there arises a problem that water accumulated in the steam passage is discharged to the outside through the steam port.

Japanese Utility Model Publication No. 63-179916

  The present invention eliminates the above-mentioned drawbacks. By providing a trap portion in the passage through which steam and water pass, and when the electric pot tilts toward the outlet side of the passage, the water in the passage is stored in the trap portion. The purpose is to prevent water from being discharged from the outlet.

  In order to achieve the above object, the present invention adopts the following configuration.

In the invention which concerns on Claim 1, the electric body which has a container main body, the inner container accommodated in the said container main body, the heating means which heats the liquid in the said inner container, and the cover body provided above the said container main body The lid includes a steam recovery unit that is separate from the lid and recovers the introduced steam as water, and the steam recovery unit includes steam and water having an inlet and an outlet. With a passage through it,
The vapor recovery unit, and placed above the lid, wherein the inlet communicates with the inner container, said outlet communicates with the outside, said path, the electric kettle said outlet A structure having a trap portion for storing the water when tilted to the right.

  In the invention according to claim 1, for example, by providing a passage through which steam and water having an inlet and an outlet pass through the lid, and providing a trap portion for storing water when the electric pot is inclined toward the outlet, Even if the pot is inclined toward the outlet side of the passage or falls down, it is possible to prevent the harmful effect that the water accumulated in the steam passage is discharged to the outside.

In addition to the effect of the invention according to claim 1, the exit of the passage is higher than the entrance, and the midway path does not decrease in height from the entrance side to the exit side. The water can naturally return to the entrance side by its own weight, and it is possible to prevent the accumulation of more than a predetermined amount of water in the passage.

  As a result, even if the electric pot is inclined to the outlet side of the passage or falls, the water remaining in the steam passage is small, so that the water remaining in the passage can be more reliably captured by the trap portion. Further, the discharge of water to the outside can be prevented more reliably.

Overall cross section of electric pot Enlarged sectional view of the lid of the electric pot The perspective view which looked at the cover body which removed the cover upper member from diagonally upward A view of the vicinity of the circular ring of the lower lid member from below (the broken line shows the steam port of the inner lid member for convenience) Side view of the steam recovery unit provided in the lid The perspective view which looked at the state which separated the vapor recovery unit provided in the lid body up and down from the upper part Plan view of the lower case of the steam recovery unit (open arrows indicate the flow of steam) The figure which shows the state when a vapor | steam collection | recovery unit inclines or falls to the exit side (The upper part of a figure shows the upper direction of a gravitational direction, the lower part of a figure shows the lower part of a gravitational direction. A black arrow shows the flow of condensed water. ) The figure which shows a state when a steam recovery unit inclines to the inlet side, falls, or opens a lid (the upper part of the figure is the upper part of the gravitational direction, the lower part of the figure shows the lower part of the gravitational direction. Shows the flow. Diagram showing the flow of steam from the inner container to the steam sensor during normal operation Diagram showing the flow of steam from the steam sensor to the steam recovery unit and the flow of condensed water from the steam recovery unit to the steam sensor The figure which shows the flow of the dew condensation water in the steam recovery unit at the time of a lid body opening (similar figure to FIG. 9)

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  FIG. 1 is an overall cross-sectional view of the electric pot, FIG. 2 is a partially enlarged cross-sectional view of the lid of the electric pot, FIG. 3 is a perspective view of the steam recovery unit assembled in the lid, and FIG. FIG. 5 to FIG. 7 show the details of the steam recovery unit, and FIG. 7 to FIG. 10 show the flow of steam and water. The hot water inlet side is referred to as the front side, and the hinge portion side opposite to the hot water inlet side is referred to as the rear side.

  The electric pot P includes a container body 1 having an inner container 3 for storing hot water, a lid body 2 for opening and closing the container body 1, an electric heater 4 as a heating means for heating the inner container 3, and the inner container 3 is provided with a hot water supply passage 6 for supplying hot water from the hot water supply port 5 and an electric pump 7 for feeding the hot water through the hot water supply passage 6. A handle 24 for carrying the pot is provided on the outer periphery of the container body 1.

  The container body 1 includes an outer case 8 made of a synthetic resin that forms an outer peripheral surface, an inner container 3 that forms an inner peripheral surface, and an annular shape made of a synthetic resin that connects the outer case 8 and the inner container 3. The shoulder member 9 is composed of a synthetic resin bottom member 10 constituting the bottom surface and a rotating body 11 which rotates in the container body 1 and is accommodated in a groove formed on the outer periphery of the bottom member 10.

  The ring-shaped inner wall portion 9a of the shoulder member 9 is slightly inclined inward, and a steam sensor 25 is disposed at a position where a seal packing 38, which will be described later, abuts on the rear side of the inner wall portion 9a. The shoulder member 9 is provided with a handle 24 having a substantially semicircular arc shape.

An electric heater 4 such as a mica heater in which a heating element is held on a mica plate is attached to the bottom of the inner container 3, and a hot water temperature detecting means for detecting the hot water temperature in the inner container 3 is provided at the center of the bottom. A hot water temperature sensor 12 is provided and used for heating and heat control. On the upper surface on the front side of the pot where the hot water supply port 5 is provided, a display unit and various switch buttons (not shown) are arranged, timer setting, temperature display, etc. Is displayed. In addition, in the lower space on the front side, a tipping outflow stop valve 13 is provided, and when the pot is tilted and falls, safety measures are taken to close the hot water supply passage 6 so that hot water does not flow outside. Has been.

  The lid body 2 includes a synthetic resin lid upper member 14 and a synthetic resin lid lower member 15 and the like which are coupled to the lid upper member 14 by screws (not shown). 15, a metal inner lid member 21 that is opposed to the opening end of the inner container 3 and functions as a lid for the opening end is provided, and a hinge portion 20 provided at the rear portion of the shoulder member 9. It is supported so that it can be opened and closed freely.

  The lid upper member 14 is a flat plate-shaped member having a rectangular shape on the front side and a trapezoidal shape on the rear side, and having a rectangular shape in plan view as shown in FIG. The locking member 14a is provided, and the lid 2 is opened by pressing the front side of the locking member 14a downward.

  The lid lower member 15 has a substantially bowl-shaped cross section made of resin and has a substantially circular shape in plan view, and is integrally attached to the lid upper member 14 with a screw or the like (not shown). The lower lid member 15 is provided with a cylindrical concave portion 17 protruding upward at the bottom thereof, and the cylindrical concave portion 17 has an outer diameter smaller than the inner diameter of the cylindrical concave portion 17, and the cylindrical concave portion. Circular ribs 16 having a height slightly higher than 17 are provided.

  As shown in FIG. 4, a small rectangular notch 18 is provided on the front side of the circular rib 16, and the steam guide is provided on the rear side of the space S between the circular rib 16 and the cylindrical recess 17. An outlet 19 is provided.

  The inner lid member 21 is provided below the lid lower member 15 as described above. A concave fitting portion 22 is formed in the inner lid member 21, and the concave fitting portion 22 is attached in a form that fits into the circular rib 16 of the lower lid member 15.

  As shown by a broken line in FIG. 4, the concave fitting portion 22 is provided with a plurality of, for example, three steam ports 22 a, and the steam in the inner container 3 is indicated by an arrow (1) in FIGS. As shown in FIG. 3, the gas enters the circular rib 16 through the three steam ports 22a, and then enters the space S between the circular rib 16 and the cylindrical recess 17 from the front notch 18 as shown by the arrow (2). As shown by the arrow (3), the space S is detoured to the rear side and flows into the steam recovery unit 30 described later from the steam outlet 19.

  Between the lid upper member 14 and the lid lower member 15, a heat insulating material 23 such as foamed polystyrene is provided leaving a space above the lid member 14 to insulate the lid 2. And in the space left above the heat insulating material 23, as shown in FIG. 1 thru | or FIG. 3, the vapor | steam collection | recovery unit 30 is arrange | positioned. The reason why the steam recovery unit 30 is arranged above the heat insulating material 23 is to make the steam in the steam recovery unit 30 easy to cool and to make condensed water as soon as possible.

  The steam recovery unit 30 is a resin member that introduces steam and recovers the introduced steam as water. The steam recovery unit 30 has an inlet and an outlet for the steam, meanders in the interior, or zigzags in the left-right direction. And a plurality of trap portions, all of the steam introduced from the inlet is condensed in the internal passage. Therefore, steam does not go to the outlet, and the outlet functions as a pressure release port for releasing the pressure to the outside.

  The steam recovery unit 30 includes an upper case 31 and a lower case 32. The upper case 31 and the lower case 32 have substantially the same shape, and are in contact with each other and integrated with an adhesive.

  The steam recovery unit 30 has a semicircular arc portion 33 whose front side located at the center is substantially straight (actually a slightly bent shape at the center) and whose rear side is arcuate, and a substantially straight side of the semicircular arc portion 33. It has a substantially rectangular rectangular portion 34 elongated in the front-rear direction extending from one end portion toward the front side, and a rectangular tongue portion 35 extending rearward from the arcuate side center of the semicircular arc portion 33.

  And the said tongue-shaped part 35 has the linear part 35a extended in the back side from the center of the semicircular arc-shaped part 33, and the inclination part 35b of the back end of the linear part 35a. The inclined portion 35b includes an upper inclined portion 35b1 formed on the upper case 31 and a lower inclined portion 35b2 formed on the lower case 32. The upper inclined portion 35b1 is approximately half the length of the lower inclined portion 35b2. And is in contact with the upper side of the lower inclined portion 35b2. The lower inclined portion 35b2 has a length approximately twice that of the upper inclined portion 35b1, and has two openings 36, 36 in the left-right direction.

  The steam recovery unit 30 is disposed in the lid 2. The arrangement is shown in FIG. When the steam recovery unit 30 is arranged, the rectangular part 34 is in a horizontal state, and the semicircular arc part 33 and the tongue part 35 are in an inclined state. That is, the outlet of the steam recovery unit 30 is higher than the inlet, and the midway path is prevented from decreasing in height from the inlet side toward the outlet side. The steam recovery unit 30 is attached by fitting the steam recovery unit 30 into a space formed in the lid body 2 and screwing the mounting portions 39a and 39a formed to protrude from the tongue-shaped portion 35 of the lower case 32 to the left and right. This is done by inserting screws into the holes 39b and 39b and screwing the screws into the lid lower member 15.

  The rectangular portion 34 may also be inclined similar to the semicircular arc portion 33 and the tongue portion 35. However, if all are inclined, the length of the steam recovery unit 30 in the vertical direction becomes longer, and thus such a form is adopted.

  Further, a rectangular opening 37 having an area larger than the combined area of the two openings 36 and 36 provided in the lower inclined portion 35b2 is formed in the lid lower member 15 at a position where the inclined portion 35b of the tongue-shaped portion 35 faces. (See FIGS. 2, 10, and 11), and a seal packing 38 of approximately the same size is fitted in the rectangular opening 37 with the outer periphery thereof fitted to the inner peripheral end of the rectangular opening 37. Attached in form.

  When the steam recovery unit 30 is disposed in the lid body 2, the inclined portion 35 b comes into contact with one surface of the seal packing 38 in a watertight manner. When the lid 2 is closed, the other end of the seal packing 38 is watertight in such a form that the steam sensor 25 enters the seal packing 38 into the ring-shaped inner wall portion 9a of the shoulder member 9 where the steam sensor 25 is disposed. The seal space 38a in the seal packing 38 is a chamber in which steam is reversed.

  The reason why the steam space 38a in the seal packing 38 is a chamber in which steam is reversed is to provide the steam sensor 25 in the steam passage as close to the inner container 3 as possible, and to provide the steam sensor 25 at this position. Therefore, when water boils, it is possible to detect the steam immediately, and as a result, the amount of generated steam can be reduced.

  For this reason, the electric pot of the present invention has a control function of reducing the energization amount to the electric heater 4 or turning it off as soon as the steam sensor 25 detects the steam. In other words, according to the present invention, the water in the inner container 3 is boiled but the boiling detection is performed early to reduce the amount of steam, and the steam recovery unit 30 recovers a small amount of steam, thereby enabling the steamless function of the electric pot P. It is something to enhance. In this way, by reducing the time when the boiling detection is early and the steam is emitted, it can contribute to energy saving.

  The upper case 31 is provided with one long support rib 39 on the rear side and three short support ribs 39 on the upper side of the upper case 31, and the steam recovery unit 30 is disposed in the lid 2. Then, these tips contact the bottom surface of the lid upper member 14 and support the steam recovery unit 30. The shape of the passage and trap of the upper case 31 is almost the same as that formed in the lower case 32, and will be described below with reference to FIGS. 6 and 7 (mainly FIG. 7).

  In the center of the rear side of the semicircular arc-shaped portion 33 of the lower case 32, a steam introduction pipe 40 having a steam introduction port 41 that is a steam inlet is suspended, and this steam introduction pipe 40 is connected to the lid lower member 15. The steam which is opposed to the steam outlet 19 and is led out from the steam outlet 19 is introduced.

  The passage from the steam inlet 41 is formed as follows. That is, a substantially front-and-rear first front-rear direction passage 42 is formed from the steam inlet 41 to one opening 36 (left side in FIG. 7) of the lower inclined portion 35b2, and the other of the lower inclined portion 35b2 is formed. From the opening 36 (on the right side in FIG. 7), a second front-rear direction passage 43 having a substantially square shape is formed substantially parallel to the first front-rear direction passage 42, and thereafter, a plurality of portions formed in the semicircular arc-shaped portion 33. Are connected to a plurality of trap chambers which are the inclined passages and trap portions.

  That is, the end portion of the second front-rear direction passage 43 communicates with the first folded portion 44 at the right end of the lower case 32, and the other end portion of the first folded portion 44 is inclined obliquely downward to the left. It communicates with the first inclined passage 45. The first inclined passage 45 has a first communication hole 56a on the front side near the right side of the first inclined passage 45 (lower side in FIG. 7), and is inclined obliquely downward to the right from the first communication hole 56a. A first trap chamber 56 that intersects the first inclined passage 45 at an obtuse angle is provided. The lower tip of the first trap chamber 56 is in a dead end state and has a function of accumulating water flowing down from above.

  The end portion of the first inclined passage 45 communicates with the second folded portion 46 at the left end of the lower case 32, and the other end portion of the second folded portion 46 is inclined to the lower right. To the inclined passage 47. The second inclined passage 47 has a second communication hole 57a on the front side (lower side in FIG. 7) closer to the left side, and is inclined obliquely to the left and downward from the second communication hole 57a. A second trap chamber 57 that intersects the second inclined passage 47 at an obtuse angle is provided. The lower tip of the second trap chamber 57 is in a dead end state and has a function of accumulating water flowing down from above.

  The end portion of the second inclined passage 47 communicates with the third folded portion 48 at the right end of the lower case 32, and the other end portion of the third folded portion 48 is inclined to the left obliquely downward. To the inclined passage 49. The third inclined passage 49 has a third communication hole 58a on the front side near the right side of the third inclined passage 49 (lower side in FIG. 7) and is inclined obliquely downward to the right from the third communication hole 58a. A third trap chamber 58 that intersects the third inclined passage 49 at an obtuse angle is provided. The lower tip of the third trap chamber 58 is in a dead end state, and has a function of accumulating water flowing down from above.

  The end portion of the third inclined passage 49 communicates with the fourth folded portion 50 at the left end of the lower case 32, and the fourth folded portion 50 communicates with the passage of the rectangular portion 34. That is, the fourth folded portion 50 communicates with the fourth communication hole 59a on the left side of the rectangular portion 34 at the lower end thereof. The fourth communication hole 59a communicates with a fourth trap chamber 59 provided in the front-rear direction. The lower tip of the fourth trap chamber 59 is in a dead end state and has a function of accumulating water flowing down from above.

  The fourth folded portion 50 communicates with the fifth folded portion 51 on the right side of the rectangular portion 34 at the lower end thereof, and the other end portion of the fifth folded portion 51 extends in the front-rear direction. To the front-rear direction passage 52. The lower end of the third longitudinal passage 52 has a fifth communication hole 60a, and a fifth trap chamber 60 is provided below the fifth communication hole 60a. The lower tip of the fifth trap chamber 60 is in a dead end state and has a function of accumulating water flowing down from above.

  The end portion of the third front-rear direction passage 52 communicates with the sixth folded portion 53 at the left end of the lower case 32, and the other end of the sixth folded portion 53 is an outlet and releases pressure. It communicates with the outlet hole 54 for this purpose. The outlet hole 54 communicates with the outside in the vicinity of the hot water supply port 5 on the front side of the electric pot P.

  The flow of steam will be described with reference to FIG. 2, FIG. 4, FIG. 7, FIG. The steam generated in the inner container 3 rises as shown in FIG. 10, enters the space in the circular rib 16 from the steam port 22 a of the inner lid member 21, and then enters the space S from the notch 18 of the circular rib 16. Then, the space S passes through the steam outlet 19 and reaches the steam inlet 41 of the steam recovery unit 30 (see arrows (1) to (3) in FIGS. 2 and 4).

  The flow of steam in the steam recovery unit 30 is indicated by white arrows in FIG. 7 (the same as the black arrows in FIGS. 10 and 11). The steam (arrow (1)) that has entered the steam recovery unit 30 from the steam inlet 41 passes through the first front-rear direction passage 42 and the left opening 36 and reaches the seal space 38 a in the seal packing 38. Therefore, it is detected by the steam sensor 25, and the subsequent heating is reduced or stopped.

  The steam reverses in the seal space 38a (arrow (2)) and enters the steam recovery unit 30 again through the right opening 36. The steam that has entered the steam recovery unit 30 passes through the second front-rear direction passage 43 (arrow (3)) and is reversed by the first folding portion 44.

  Next, the steam reversed by the first folding part 44 is reversed by the second folding part 46 via the first inclined passage 45 (arrow (4)).

  Next, the steam reversed by the second folding part 46 is reversed by the third folding part 48 via the second inclined passage 47 (arrow (5)).

  Next, the steam reversed by the third folding part 48 is reversed by the fourth folding part 50 via the third inclined passage 49 (arrow (6)).

  At this point, the vapor is almost gone, and the increased pressure is released from the outlet hole 54 to the outside atmosphere through the fifth folded portion 51, the third front-rear direction passage 52, and the sixth folded portion 53. Is done. The steam condenses on the passage wall surface in the middle of the passage and becomes water.

  As shown in FIG. 5, the shape of the passage inside the steam recovery unit 30 is mostly inclined toward the rear side in a normal state. 7 flows toward the rear side in the opposite direction to the flow of the steam described in 7, falls on the inner lid member 21 from the steam inlet 41, and is returned into the inner container 3 through an opening (not shown).

  A state when the electric pot P is inclined to the outlet hole 54 side that is the outlet of the passage or falls down will be described. Such a state is shown in FIG. That is, when the outlet hole 54 is at the bottom, the dew condensation water in the passage of the steam recovery unit 30 flows as indicated by a substantially black arrow.

  By the way, as described above, the first trap chamber 56 communicating with the first inclined passage 45 via the first communication hole 56a and the second inclined passage 47 are connected to the passage of the steam recovery unit 30. The second trap chamber 57 that communicates with the third communication hole 57a, the third trap chamber 58 that communicates with the third inclined passage 49 via the third communication hole 58a, and the fourth communication hole 59a. The fourth trap chamber 59 and the fifth trap chamber 60 communicate with each other via the fifth communication hole 60a. The trap chambers 56 to 60 have the communication holes 56a to 60a facing upward. Come to be located.

  Therefore, the dew condensation water that flows down or falls through each passage wall falls into one of the trap chambers 56 to 60 through one of the communication holes 56a to 60a as shown in FIG. As a result, even if the electric pot P is inclined to the outlet hole 54 side that is the outlet of the passage or falls down, the condensed water is not discharged from the outlet hole 54 to the outside.

  Next, when the lid 2 of the electric pot P is opened, in other words, a state in which the electric pot is inclined to the steam inlet 41 side that is the inlet of the passage or falls is described. Such a state is shown in FIGS. That is, when the steam inlet 41 goes down, the dew condensation water in the passage of the steam recovery unit 30 flows as indicated by a black arrow in FIG. 9 and by a broken arrow in FIG.

  By the way, as described above, the first trap chamber 56 communicating with the first inclined passage 45 via the first communication hole 56a and the second inclined passage 47 are connected to the passage of the steam recovery unit 30. The second trap chamber 57 that communicates with the third communication hole 57a, the third trap chamber 58 that communicates with the third inclined passage 49 via the third communication hole 58a, and the fourth communication hole 59a. Although it has the 4th trap chamber 59 and the 5th trap chamber 60 connected via the 5th communicating hole 60a, each trap chamber 56-60 has each communicating hole 56a-60a below. Come to be located.

  Therefore, the dew condensation water that flows down or falls along each passage wall and the dew condensation water in each trap chamber 56-60 pass through the second front-rear direction passage 43 and the opening 36 as shown in the figure. The seal space 38a in the seal packing 38 is reached. When the lid 2 is opened, the seal packing 38 is positioned away from the inner wall portion 9a of the shoulder member 9 and is opposed to the inner container 3 above the inner container 3, and as shown in FIG. Most of the condensed water falls into the inner container 3 from the seal packing 38 and does not spill outside. In this case, if condensed water remains in the inner lid member 21, the condensed water portion also returns to the inner container 3 as shown in FIG.

  The invention of the present application is not limited to the configuration of the above embodiment, and it is needless to say that the design can be appropriately changed without departing from the gist of the invention.

P Electric Pot 1 Container Body 2 Lid 3 Inner Container 4 Electric Heater 5 Hot Water Supply Port 6 Hot Water Supply Passage 7 Electric Pump 8 Outer Case 9 Shoulder Member 9a Inner Wall 10 Bottom Member 11 Rotating Body 12 Hot Water Temperature Sensor 13 Falling Outflow Stop Water Valve 14 Upper lid member 14a Lock member 15 Lower lid member 16 Circular rib 17 Cylindrical concave portion 18 Notch 19 Steam outlet 20 Hinge portion 21 Inner lid member 22 Recessed fitting portion 22a Steam port 23 Heat insulating material 24 Handle 25 Steam sensor 30 Steam recovery unit 31 Upper case 32 Lower case 33 Semicircular arc part 34 Rectangular part 35 Tongue part 35a Linear part 35b Inclined part 35b1 Upper inclined part 35b2 Lower inclined part 36 Opening hole 37 Rectangular opening 38 Seal packing 38a Sealing space 39 Support rib 40 Steam inlet pipe 41 Steam inlet 42 First front-rear direction passage 43 Second front-back direction Road 44 First turning portion 45 First inclined passage 46 Second turning portion 47 Second inclined passage 48 Third turning portion 49 Third inclined passage 50 Fourth turning portion 51 Fifth turning portion 52 Third front-rear direction passage 53 Sixth return portion 54 Exit hole 56 First trap chamber 56a First communication hole 57 Second trap chamber 57a Second communication hole 58 Third trap chamber 58a Third communication Hole 59 Fourth trap chamber 59a Fourth communication hole 60 Fifth trap chamber 60a Fifth communication hole

Claims (1)

An electric pot having a container body, an inner container housed in the container body, a heating means for heating a liquid in the inner container, and a lid provided above the container body,
The lid body has a vapor recovery unit that is separate from the lid body and collects the introduced steam as water ,
The steam recovery unit includes a passage through which steam and water have an inlet and an outlet,
The vapor recovery unit, and placed above the lid,
The inlet communicates with the inner container;
The outlet communicates with the outside,
The electric pot according to claim 1, wherein the passage has a trap portion for storing the water when the electric pot is inclined toward the outlet side.

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