JP3220497U - Small pot with ribs - Google Patents

Abstract

The present invention provides a small pot in which the ratio of the effective volume to the total volume is optimized. A pot (1) includes a body part (3) provided above an electric heating bottom and a steam line (10) for transporting steam released at the time of boiling to a steam detection sensor. However, the inflow opening provided in the inner edge 9 of the main body 3 is provided above the highest water supply level of the main body 3. The protective device 20 for preventing water intrusion into the steam line 10 during boiling is vertical extending from the inner edge 9 of the main body part provided with the inflow opening part to the inside of the main body part 3 below the inflow opening part. Ribs 30 are provided. Ribs 30 extend at least partially into the upward flow of water and steam below the horizontal plane corresponding to the make-up maximum water level, thereby at least partially dividing the upward flow of water and steam during boiling; The protection device 20 includes a deflecting unit 21 that keeps the divided upward flow away from the inflow opening. [Selection] Figure 1

Description

  The present invention relates to a liquid heating device, and more particularly, to an electric pot including a main body portion that forms a water receiving container, an electric heating bottom portion, and a boiling detection device.

  According to Patent Document 1 and the like, there are a main body provided above the electric heating bottom, and a steam pipe for carrying the steam released at the time of boiling to the steam detection sensor, There is known a pot provided with a steam line having an inflow opening provided above the highest water supply level.

  In such a pot, an upward flow of water and steam is generated during heating, and gradually large fluctuations and scattering occur on the free water surface as it approaches boiling. In order to prevent water droplets from entering the steam line from the inflow opening and damaging the steam detection sensor, the pot's effective volume can be increased by setting the replenishment maximum water level so that a large air volume remains above the free surface of the water. Limited. The air volume can account for up to 40% of the total pot volume. By doing so, the distance from the opening of the steam line to the water surface at the highest supply level is sufficient to prevent splashes from entering the steam line.

  As a result, the overall volume of the pot to obtain a given effective heating volume is large, and the user may have a hard time finding a place to use and clean up. Furthermore, the packing of the pot is bulky, and the cost for delivering the pot from the production factory to the user is also increased.

EP0786221

  One of the objects of this device is to propose a small pot in which the ratio of the effective volume to the total volume is optimized in response to the above-mentioned disadvantages.

  Another object of the invention is to propose a pot that is simple in design and can be implemented economically.

  These objects include a main body provided above the electric heating bottom, and a steam line for transporting the steam released during boiling toward the steam detection sensor, the steam line being connected to the main body. In a pot provided with an inflow opening provided on the inner edge above the maximum water supply level of the main body, the pot is a protective device that prevents water from entering the steam line during boiling, and the inflow opening is provided. Provided with a protective device having vertical ribs extending from the inner edge of the main body to the inside of the main body and below the inflow opening, the rib being largely below the horizontal plane corresponding to the replenishment maximum water level Dividing the upward flow of water and steam at the time of boiling by extending into the upward flow of steam, and the protective device deflecting means to keep the divided upward flow away from the inlet opening It is characterized by comprising Played by the door.

  Vertical ribs are provided at the periphery of the opening and divide the upward flow by extending in the upward flow of water and steam in a radial direction relative to the inner edge. The upward flow thus divided is more easily moved away from the inflow opening by the deflecting means.

  Such a configuration can reduce the fluctuation of the water surface at the time of boiling, and can limit the size of scattering around the inflow opening of the steam line. Therefore, the distance from the opening of the steam line to the water surface of the highest water level can be shortened without the risk of water entering the steam line, thereby reducing the air volume above the free surface of the water. Can do. As a result, the pot can be made more compact, especially in terms of height.

  The replenishment maximum water level refers to a value obtained by adding 15% as a safety volume to the maximum water level realized in the main body of the pot for the user. It can be said that the replenishment maximum water level is the water level at the time of boiling defined by the surface passing through the top of the turbulent flow and the turbulence of the water surface.

  Advantageously, the ribs have a vertical clearance angle that can create a zone between the two vertical ribs that decreases in cross-sectional area in the horizontal cross section as it proceeds in the upward direction.

  Thereby, the divided upward flow is suppressed in the process of proceeding toward the water surface and directed toward the inside of the main body.

  Advantageously, the ribs have a horizontal clearance angle that allows a zone between the two vertical ribs to create a zone where the cross-sectional area in the vertical cross section perpendicular to the ribs increases radially from the inner edge.

  With this arrangement, when the divided upward flow advances toward the water surface, the flow toward the inside of the main body can be smoothed so as to be away from the inner edge.

  Preferably, the ribs are parallel.

  With this arrangement, the divided upward flow can be directed so that the majority of the upward flow is in the direction opposite to the inner edge provided with the inflow opening.

  Advantageously, the rib extends radially relative to the inflow opening.

  Thus, the upward flow divided by the ribs is distributed forward and to both sides of the inflow opening.

  Preferably, the pot has an effective make-up height between the bottom and the make-up maximum water level, and the ribs extend vertically over a height of between 10 and 50%, preferably 30% of its effective height.

  Advantageously, the rib has two opposite faces, at least one face being provided with deflection means.

  Therefore, the upward flow traveling toward the free surface along the surface having the deflecting means is directed in the direction away from the inflow opening.

  Preferably, the deflecting means is formed by at least one linear protrusion that extends upwardly towards the interior of the body.

  Therefore, the upward flow traveling along the surface toward the free surface encounters a linear protrusion extending upward toward the inside of the main body, and in a direction away from the inflow opening toward the inside of the main body. Will head.

  Advantageously, the rib is provided below the partition, in particular a perforated partition with through-holes, said partition being substantially horizontal and forming deflection means.

  The partition blocks the upward flow of water and steam divided by the ribs, so that the upward flow is directed toward the inside of the main body so that the upward flow moves away from the inflow opening in the process of traveling toward the free surface. To deflect. In addition, the vapor bubbles are trapped between the vertical ribs under the partition wall, forming an upward flow deflection surface. Water and steam create vortex turbulence through the perforated holes, thereby dissipating some of the upward flow energy.

  Advantageously, the body has a circular cross section with a radius R, the vertical ribs are inscribed in the corner area formed by the two radii R and one arc, and the inflow opening is provided near the center of the arc. It is done.

  The inflow opening is then surrounded by a balanced symmetric zone where turbulence on the water surface is reduced and the size of the splash is limited.

  Preferably, the pot includes a spout provided to diametrically oppose the inflow opening, and the protection device deflects the upward flow of water and steam during boiling toward the spout.

  Advantageously, the body part is provided with a through-opening towards the spout, the through-opening being provided below the surface of the replenishment maximum water level.

  Therefore, at the replenishment maximum water level, the water present in the through opening prevents the splash of water from spouting out.

  The invention will be better understood by examining the embodiments illustrated by way of non-limiting examples and illustrated by the accompanying drawings.

1 is a perspective view of a pot equipped with a protection device according to a specific embodiment of the present invention that prevents water from entering a steam line during boiling; FIG. It is a side view of the pot shown in FIG. It is a perspective view without the main-body part of the pot shown in FIG. It is a perspective view of the protection apparatus which prevents the penetration | invasion of the water to the steam line at the time of boiling of the pot shown in FIG. It is IV-IV sectional drawing of the protection apparatus which prevents permeation of the water to the steam pipe line at the time of boiling shown in FIG. It is a perspective view of the protection apparatus which prevents the penetration | invasion of the water to the steam line at the time of the boiling of the pot by the 2nd specific embodiment of this invention.

  In this specification, the expressions “horizontal”, “vertical”, “lower”, “upper”, “upper” and “lower” used to describe the pot are used pots placed on a horizontal work surface. Please note that

  In the embodiment shown in FIGS. 1 to 3, the pot 1 includes a base portion 2 that is powered by a cord (not shown) and a body portion 3 that forms a container for water. The main body 3 includes an upper opening 4 for replenishment that is closed by a lid (not shown). The pot 1 includes a spout 5 positioned at the level of the upper opening 4 and a handle 6 positioned on the opposite side of the upper opening 4 from the spout 5. The main body 3 has a substantially cylindrical shape having a vertical axis 7. The lid portion can be removed from the main body portion 3, and the lid portion is assembled to the main body portion 3 by a parallel movement operation substantially parallel to the vertical axis 7 of the main body portion 3.

  The base portion 2 includes a heating bottom portion 8 made of a stainless steel dish portion, and an aluminum diffuser and a heating element are provided below the heating bottom portion 8. The pot 1 includes a steam line 10 for transporting steam released from the upper part of the main body 3 when boiling to a steam detection sensor (not shown) provided in the base 2. When the steam approaches the steam detection sensor, the power supply to the heating bottom 8 is cut off. The steam line 10 extends vertically along the inner edge 9 of the main body 3, and is an inflow opening 11 extending in a horizontal plane, and includes an inflow opening 11 provided below the upper edge 12 of the main body. Prepare. The upper edge portion 12 is provided on the upper outer periphery of the main body portion 3 to form the upper opening 4.

  The pot 1 includes a protection device 20 that prevents water from entering the inflow opening 11 of the steam line 10 during boiling. The protection device 20 includes a vertical rib 30 provided below the perforated partition wall 21. The rib 30 extends from the inner edge 9 of the main body 3 toward the inside of the main body 3 in the radial direction with respect to the inflow opening 11. The rib 30 has a substantially rectangular vertical cross section. There are eight ribs 30, each of which is the same and regularly distributed.

  The perforated partition wall 21 forms a deflection unit that keeps the upward flow divided by the ribs 30 away from the inflow opening 11. The perforated partition wall 21 extends in the horizontal plane below the horizontal plane in which the inflow opening 11 extends. The perforated partition wall 21 extends from the inner edge 9 provided with the inflow opening 11 toward the inside of the main body 3 at a level of a horizontal surface 15 (FIG. 2) defined by the water surface at the highest supply water level. The ribs 30 extend into the water below the surface of the replenishment highest water level.

  As can be seen in FIGS. 4 and 5, the perforated septum 21 has a substantially circular free end 22, each of which is equidistant from the inflow opening 11. The rib 30 extends in the radial direction with respect to the inflow opening 11 and reaches the free end 22. Advantageously, the perforated partition wall 21 provided with the ribs 30 has an area occupying one-sixth of the cross-sectional area of the main body 3 in a horizontal plane passing through the perforated partition wall 21. The perforated partition wall 21 includes an elongated perforated hole 23 having a curvature centered on the inflow opening 11. The perforated hole 23 has a surface 24 inclined with respect to the vertical direction (FIG. 5).

  The protection device 20 includes block means 25 provided above the perforated hole 23. The blocking means is formed by a second perforated partition wall 25 provided in parallel to the perforated partition wall 21. The second perforated partition wall 25 includes a through opening 26 and a non-perforated portion 27 provided above the perforated hole 23. The non-perforated portion 27 covers 80% of the area of the perforated hole 23 of the perforated partition wall 21 by vertical projection onto a horizontal plane. The perforated bulkheads 21, 25 define a space between them for guiding the upward flow of water and steam in the horizontal direction.

  The protection device 20 includes two side extending portions 28 and a fixing plate 29 (FIG. 1) that enables the protection device 20 to be disposed on the upper edge 12 of the main body portion 3.

  As shown in FIG. 1, the spout 5 is provided so as to face the inflow opening 11 in the diametrical direction. The main body 3 is provided with a through-opening 13 toward the spout 5, and the through-opening 13 is provided below the surface of the replenishment maximum water level.

  When in use, a user who wants to boil a large amount of water fills the pot 1 up to the replenishment maximum water level and activates the pot 1. The heating bottom 8 begins to heat the water that has entered the main body 3, and as it approaches boiling, an upward flow of water and steam is produced from the heating bottom 8 toward the free water surface of the water. The upward flow of water perpendicular to the protective device 20 enters and divides between the ribs 30 and is partially blocked, and then passes through the perforated hole 23 of the perforated partition wall 21 having the inclined surface 24. It is deflected into the main body 3. A very small portion of the upward flow of water passes through the through opening 26 of the second perforated partition wall 25. The upward flow of steam passes through the protective device 20 more easily. Steam generated by boiling gathers above the water level, then enters the steam line 10 from the inflow opening 11 and reaches the steam detection sensor. The steam detection sensor triggers the stop of the heating bottom 8. The protective device 20 reduces the turbulent flow and splashes of the water surface around the inflow opening 11 of the steam line 10 to generate sufficient steam to flow in for the time necessary to trigger the stop of the heating bottom 8. Water can be prevented from entering the opening 11. In such a protection device 20, the air volume above the free water surface can be reduced to 20% of the entire pot volume.

  In the variant embodiment of the protection device 20 shown in FIG. 6, the vertical ribs 30 are arranged in parallel. The rib 30 extends from the inner edge 9 of the main body 3 toward the inside of the main body 3 in the radial direction with respect to the inflow opening 11 and the steam pipe 10. The rib 30 has a vertical clearance angle α1 and a horizontal clearance angle α2. The rib 30 provided in the central portion of the protection device 20 includes opposed surfaces 31 and 32 having linear protrusions 33 and 34 that form a deflecting unit that keeps the divided upward flow away from the inflow opening 11. The linear protrusions 33 and 34 are linear. The rib 30 is disposed under the partition wall 35 forming a frame. The partition walls 35 and the ribs 30 are disposed in the pot 1 in the same manner as the perforated partition walls 21 and the ribs 30 of the embodiment shown in FIG.

  In operation, the upward flow of water perpendicular to the protection device 20 is partially deflected by the projections 33, 34 toward the interior of the body 3 and then split by entering between the ribs 30. . The vertical clearance angle α1 and the horizontal clearance angle α2 of each rib 30 suppress the divided upward flow in the process of proceeding to the water surface and direct it toward the inside of the main body 3.

  It goes without saying that the present invention is not limited to the embodiments described and illustrated only by way of example. Changes from the point of view of the configuration of various elements, changes by replacement with technical equivalents, and the like are still possible without departing from the scope of protection of the present invention.

  In one variant not shown, the protection device is arranged on the lid.

Claims (12)

  A main body (3) provided above the electric heating bottom (8), and a steam line (10) for carrying the steam released at the time of boiling toward the steam detection sensor, the steam line ( 10) in the pot (1) provided with an inflow opening (11) provided in the inner edge (9) of the main body (3) above the highest water supply level of the main body (3), the pot (1 ) Is a protective device (20) for preventing water from entering the steam line (10) during boiling, and the inner edge (9) of the main body provided with the inflow opening (11). A protective device (20) having a vertical rib (30) extending below the inflow opening (11) toward the inside of the main body (3), wherein the rib (30) corresponds to the highest water supply level For the majority of the horizontal plane (15) that extends below and into the upward flow of water and steam. And at least partially dividing the upward flow of water and steam during boiling, and the protection device (20) deflecting means (21 for keeping the divided upward flow away from the inlet opening (11). , 33, 34).   The rib (30) has a vertical clearance angle α1 that can create a zone (36) between the two vertical ribs (30) in which the cross-sectional area in the horizontal cross section decreases as it proceeds in the upward direction. The pot (1) according to claim 1, characterized by:   The rib (30) has two vertical ribs (30) in a zone (36) in which a cross-sectional area in a vertical cross section perpendicular to the rib (30) increases from the inner edge (9) in the radial direction. Pot (1) according to claim 1 or 2, characterized in that it has a horizontal clearance angle α2 that can be created between the two.   Pot (1) according to any one of claims 1 to 3, characterized in that the ribs (30) are parallel.   The pot (1) according to any one of the preceding claims, characterized in that the rib (30) extends in a radial direction with respect to the inflow opening (11).   The pot (1) has an effective refill height between the electric heating bottom (8) and the refill maximum water level, and the rib (30) is between 10 and 50% of the effective refill height; 6. Pot (1) according to any one of the preceding claims, characterized in that it extends vertically preferably over a height of 30%.   The rib (30) comprises two opposing faces (31, 32) and at least one of the faces (31, 32) comprises deflection means (33, 34). The pot (1) according to any one of 6.   8. Pot (1) according to claim 7, characterized in that the deflection means are formed by at least one linear protrusion (33, 34) extending upwardly towards the interior of the main body.   The rib (30) is provided under a partition wall, in particular a perforated partition wall (21) having a through-hole (23), the partition wall being substantially horizontal and forming deflection means. The pot (1) according to any one of 6.   The main body (3) has a circular cross section with a radius R, and the vertical rib (30) is inscribed in a corner region formed by two radii R and one arc, and the inflow opening (11) The pot (1) according to any one of claims 1 to 9, characterized in that is provided near the center of the arc.   A pouring spout (5) provided so as to face the inflow opening (11) in a diametrical direction; and the protection device (20) allows the upward flow of water and steam when boiling to the pouring spout ( 11. Pot (1) according to any one of claims 1 to 10, characterized in that it is deflected towards 5).   The main body (3) is provided with a through-opening (13) toward the spout (5), and the through-opening (13) is provided below the surface of the highest water supply level. Pot (1) according to claim 11.

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