JP6135746B2 - Electric kettle - Google Patents

Description

  The present invention relates to an electric kettle, and more particularly to an electric kettle that prevents vapor from going outside.

  Generally, in an electric kettle, a container body provided with a heating means for heating an inner container containing a liquid (for example, water) and a liquid (for example, water) in the inner container, and an opening at the top of the container body are covered. And a steam discharge port for discharging steam to the outside (for example, indoor space) at the time of heating and boiling or the like.

  In this type of electric kettle, steam in the inner container is introduced from a steam inlet formed on the inner surface side of the lid (that is, the upper opening side of the inner container), and the lid Through the steam discharge passage having a short distance formed in the thickness direction, the steam is discharged as it is from the steam discharge port formed on the upper surface of the lid body to the outside (for example, indoor space). (For example, refer to Patent Document 1).

JP 2009-172109 A

  However, in the case of an electric kettle configured to discharge steam from the steam outlet as described above, there is a risk that a child or the like may come into contact with the steam discharged from the steam outlet. In addition, when a large amount of steam is released into the indoor space, the bran and wallpaper are moistened, and when the boiling state is continued more than necessary, there is a problem that power consumption increases.

  Therefore, it is preferable to prevent the vapor itself from going out by some method.

  However, in the electric kettle as described above, no such countermeasure has been found so far, and an effective countermeasure is required.

  The present invention has been made based on such circumstances, and an object of the present invention is to provide an electric kettle that prevents the steam generated in the inner container from going out.

  In order to achieve the above object, the present invention is configured with the following problem solving means.

(1) SUMMARY SUMMARY OF THE INVENTION The present invention of claim 1 includes a inner container for containing a liquid, a container body accommodating integrated inner container, the inner container be in the upper portion of the container body A lid for closing the opening at the top of the vessel, a spout provided at the front of the container body, heating means for heating the liquid in the inner container, A steam cooling means that introduces steam generated in the lid and cools and condenses in the lid , and introduces steam generated outside the lid and in the inner container to cause boiling of the liquid in the inner container. An electric kettle comprising a boiling detection means for detecting , wherein the steam cooling means introduces steam generated in the inner container and supplies it to the boiling detection means outside the lid; and Outside the lid through the boiling detection passage. The steam supplied to the boiling detection means is reintroduced into the lid body, the steam cooling section for cooling the introduced steam, and the steam cooled through the steam cooling section are introduced to bypass the lid body in the circumferential direction. An annular steam passage for cooling, and a steam lead-out passage for introducing the steam cooled through the annular steam passage and leading outside the lid through the vicinity of the steam introduction passage from the inner container. The lead-out passage is constituted by a passage partitioned by a partition wall, while the annular steam passage is constituted by a cylindrical passage .

According to such a configuration, the steam path of the steam cooling means that introduces the steam generated in the inner container and cools and condenses in the inner container introduces the steam generated in the inner container. A boiling detection passage to be supplied to the boiling detection means outside the lid, and the steam supplied to the boiling detection means outside the lid through the boiling detection passage is again introduced into the lid, and the introduced steam is cooled. A steam cooling section, an annular steam passage for cooling by introducing steam cooled through the steam cooling section, and bypassing the lid body in a circumferential direction; and a steam cooled through the annular steam passage; would be formed from the vapor discharge passage for guiding the lid outside through the steam introduction passage around from, will be the length of the steam path for condensation of steam by cooling can be formed sufficiently long overall, The path length becomes possible to form sufficiently long, it is possible to effectively improve the condensation efficiency by steam cooling.

In this case, the steam cooling section and the steam outlet passage are constituted by a passage partitioned by a partition wall, and the annular steam passage is constituted by an independent cylindrical passage.

As a result, the amount of steam led out of the lid body from the steam lead-out passage is greatly reduced, and a steam-less structure can be realized substantially.

Therefore, according to the same configuration, the child's etc. do not touch the emitted steam, and the indoor humidity becomes high and problems such as the bran and the wallpaper get wet are surely solved. In addition, the amount of steam generated can be minimized as much as possible, and the power consumption can be minimized.

  As a result, according to the present invention, an electric kettle with a steam-less structure and high energy saving performance can be provided.

It is a longitudinal sectional view showing the overall configuration of the electric kettle implementation form of the present invention. It is a top view which shows the structure of the vapor | steam path | route in the lid body which removed the upper plate of the electric kettle of FIG. It is the III-III sectional view taken on the line of FIG. FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. It is the VV sectional view taken on the line of FIG. It is sectional drawing which shows the structure of the upper end part of the handle part in the electric kettle of the same FIG.

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

  1 to 6 show an electric kettle according to an embodiment of the present invention.

  As shown in FIG. 1, the electric kettle includes a container body 1 having an inner container 3 for storing hot water inside, a lid body 2 that opens and closes an upper side opening of the container body 1, and the inner container 3. A water heater 4 which is a heating means for heating at the time of boiling, a spout 5 for supplying hot water in the inner container 3 to the outside, and a back surface portion of the container main body 1 (that is, opposite to the spout 5). And a handle portion 6 having a U-shaped side view attached in a state extending from the upper end side to the lower end side. In the present embodiment, the spout 5 can pour the liquid in the inner container 3 from the spout 5 by holding the handle 6 and tilting the container body 1 toward the spout 5. Are formed diagonally upward.

  The container main body 1 includes a cylindrical main body case 1a made of sheet metal, a synthetic resin dish-shaped bottom member 1b that is engaged with a lower end opening of the main body case 1a, and an upper end of the main body case 1a. An annular shoulder member 1c made of a synthetic resin and engaged with the opening is formed, and the inner container 3 is supported and integrated through the shoulder member 1c.

  The inner container 3 is made of, for example, a single-plate stainless steel cylindrical body with a bottom, and the bottom heater is provided with the water heater 4.

  In the present embodiment, the container body 1 is detachable from the table-type power supply base 20, and the handle 6 The liquid in the inner container 3 can be poured out from the spout 5 by tilting the container body 1 toward the spout 5.

  A power receiving coupler 20b is provided on the lower surface side of the water heater 4, and AC power is supplied by fitting a power feeding coupler 20a provided in the power supply base 20 to the power receiving coupler 20b. Power is supplied to the water heater 4, a bimetal (not shown) for detecting boiling, a boiling detection sensor 10 to be described later, and the like.

  The lid body 2 includes an upper plate 2a made of synthetic resin, a lower plate 2b made of synthetic resin with an outer peripheral edge coupled to the upper plate 2a, and a metal inner plate positioned below the lower plate 2b. It consists of a cover 2c and is detachably fitted to the opening inside the shoulder member 1c in a vertical direction. A communication hole (not shown) communicating with the inside of the inner container 3 is formed at an appropriate position of the inner cover 2c.

The space between the upper plate 2a and the lower plate 2b corresponds to the steam path 11 serving as a passage for the steam S generated in the inner container 3 (corresponding to the steam cooling means in claim 1 of the claims). ) .

In the case of the present embodiment, as shown in FIG. 2, for example, the steam path 11 has two parallel partition walls 12a, 12b, 12c, 12d (outside) between the upper plate 2a and the lower plate 2b. The first and second steam cooling sections (steam cooling passages) 11a, 11c and the outlet section of the first steam cooling section 11a, and the partition walls 12a, 12c of the first steam cooling section 11a communicate with each other. The second steam cooling section 11c that also serves as a steam lead-out passage to the outside of the lid body after having made a substantially half circumference along the inner periphery of the lid body 2 after heading toward the front side of the lid body 2 . The pipe-shaped annular steam passage 11b (corresponding to the cylindrical passage in claim 1) communicating with the inlet portion ( corresponding to the steam outlet passage in claim 1) . ing. The outlet part of the first steam cooling part 11a and the inlet part of the second steam cooling part 11c are open to each other so as to be able to communicate with each other. The open portion 11d communicates with the inside.

The first steam cooling section 11a is provided with a tip-over water valve 17 (this may be omitted) in the steam introduction passage 21b portion communicating with the steam introduction port 21a on the inner container 3 side, and A boiling detection passage 11e is provided which extends to a position where a boiling detection means (temperature detection sensor) 10 for detection of boiling disposed at the upper end of the handle portion 6 to be described faces.

  On the other hand, on the inner side of the attachment portion 6b portion to the shoulder member 1c portion on the upper end side of the handle portion 6 located outside the lid 2, it is detected that the water in the inner container 3 has started to boil, Boiling detection means (in this case, composed of a temperature detection sensor as described above) 10 is provided to turn off the power supply to the water heater 4 that is the heating means described above.

With this configuration, in this embodiment, the steam path 11 that cools the steam generated from the inner container 3 introduces the steam generated in the inner container 3, and the outside of the lid body 2. A boiling detection passage 11e to be supplied to the boiling detection means, and the steam supplied to the boiling detection means 10 through the boiling detection passage 11e is again introduced through the boiling detection passage 11e, and the introduced steam is cooled. A first steam cooling section 11a, an annular steam passage 11b that cools by introducing the steam cooled through the first steam cooling section 11a and bypassing the inside of the lid body 2 in the circumferential direction, and the annular The second steam cooling section 11c, which is also a steam lead-out path that introduces the cooled steam through the steam path 11b of the inner container 3 and guides it to the outside of the lid body 2 through the vicinity of the steam introduction path 21b from the inner container 3. It becomes DOO, that Do can be formed as long as possible the path length of it. As a result, the steam cooling performance is improved, and most of the steam S flowing through the steam path 11 can be condensed.

  In addition, in this Embodiment, although the said steam channel 11b is made into the shape along the outer peripheral part inner side of the said cover body 2, it can also be made into the shape along the outer peripheral part outer side of the said cover body 2. As shown in FIG. . When configured in this manner, the path length of the steam path 11b can be further increased. As a result, the path length of the steam path 11 can be further increased.

  A communication space communicating with the upper part of the on-off valve 14 that opens and closes the hot water pouring communication path 13 that communicates the inner container 3 and the spout 5 is exposed to the lower side of the open portion 11d. In addition, as shown in FIG. 2, the lower surface of the open part 11d in which the exit part of the 1st steam cooling part 11a and the entrance part of the 2nd steam cooling part 11c are connected is shown in FIG. A shallow partition wall 11f that partitions the cooling portions 11a and 11c is provided, and a predetermined angle toward the upper side of the on-off valve 14 in order to make it easy to guide condensed water generated in the portion to the upper portion of the on-off valve 14 It is assumed to be a downward sloping surface.

  Reference numeral 15 denotes a pouring operation unit that is pressed when the on-off valve 14 is opened, and 16 denotes an urging means (coil) that urges the pouring operation unit 15 in the closing direction (upward direction) of the on-off valve 14. Spring).

  The spout 5 is located at the center of the front end side of the lid 2 and extends upward, and is supported by a spout support portion 1e provided on the shoulder member 1c of the container body 1. Yes. Further, the inner end of the spout 5 is an open portion where the first and second steam cooling portions 11a and 11c described above merge through the hot water pouring communication passage 13 communicating with the inner container 3. 11d communicates with the dew condensation water outlet D which is opened and closed via the on-off valve 14.

  That is, when the on-off valve 14 is pressed (opened) when the dispensing operation unit 15 is pressed, the condensed water outlet D is communicated with the inner container 3, and the condensed water is returned into the inner container 3. It is.

In addition, as described above, the first steam cooling section 11a has the overturn stop water valve 17 (this may be omitted) in the steam introduction passage 21b portion communicating with the steam introduction port 21a on the inner container 3 side. A boiling detection passage 11e is provided which extends to a position where a boiling detection means (temperature detection sensor) 10 for detection of boiling disposed at the upper end portion of the handle portion 6 described below is provided.

  On the other hand, on the inside of the attachment portion 6b portion to the shoulder member 1c portion on the upper end side of the handle portion 6 located outside the lid body 2, it is detected that the water in the inner container 3 has started boiling, Boiling detection means (in this case, composed of a temperature detection sensor as described above) is provided to turn off the supply of power to the water heater 4 that is the heating means described above.

  That is, on the inner side of the handle attachment portion 6b, the boiling detection means installation portion 38 that is communicated with the boiling detection passage 11e and the packing P1 through the opening 32a on the shoulder member 1c side is provided. The upstream side of the detection means installation portion 38 faces the boiling detection passage 11e to which the steam from the inner container 3 side is supplied.

  With this configuration, the temperature of the steam S generated in the inner container 3 can be detected with good responsiveness in the portion of the boiling detection means installation section 38 following the boiling detection passage 11e.

  Further, the outlet portion of the second steam cooling portion 11c is opened to the upper space portion A of the handle mounting portion 6b through the packing P2 and the opening 32b, and is placed in the space portion A to place the container body. 1 is communicated with a downward-facing side-surface-side steam passage 18 formed between the side surface 1 and the handle portion 6. A lower end 18 a of the side-side steam passage 18 is opened toward the outside at the lower end 6 a of the handle portion 6.

  With this configuration, the uncondensed steam in the steam path 11 and the condensed water condensed in the steam path 11 are formed on the downward side surface formed between the side surface side of the container body 1 and the handle portion 6. It will be discharged | emitted outside from the lower end part of the handle part 6 via the side steam channel | path 18. FIG. Therefore, it is not necessary to form a steam discharge port on the upper plate 2a of the lid 2.

  And in the electric kettle comprised as mentioned above, the 1st vapor | steam cooling part 11a of the vapor | steam path | route 11 formed in the said cover body 2 uses the front-end | tip part of the said boiling detection means (temperature detection sensor) 10. An open / close valve 14 that opens and closes a hot water pouring communication passage 13 that is supplied to the open portion 11d via the open portion 11d and communicates with the inside of the inner container 3 and the spout 5 via a communication space that extends forward from the open portion 11d. The dew condensation water that is open near the top of the steam path 11 and that is generated in the steam path 11 drops on the on-off valve 14. Therefore, of the steam S passing through the first and second steam cooling sections 11a and 11c of the steam path 11, the condensed water is provided via the condensed water outlet D that is opened when the on-off valve 14 is opened. Reflux into vessel 3. Further, even if there is uncondensed vapor, it is poured near the upper portion of the on-off valve 14, so that it is almost cooled and condensed at the same portion to form droplets. As a result, there is no need to provide a steam outlet on the upper surface of the lid 2.

  Therefore, it is possible to prevent the vapor S generated in the inner container 3 from going out of the lid 2. As a result, the child's etc. do not touch the emitted steam, the indoor humidity becomes high, and the problems such as the moisture of the bran and the wallpaper are solved. Moreover, since the steam path 11 passes through the boiling detection means (that is, the temperature detection sensor) 10 on the upstream side, the boiling detection can be performed reliably and promptly, and the power consumption is minimized. It becomes possible to suppress.

(Modification)
The invention of this application is by no means limited to the configuration of each of the embodiments described above, and can be appropriately changed without departing from the gist of the invention.

  1 is a container body, 2 is a lid body, 3 is an inner container, 4 is a heating means (water heater), 5 is a spout, 6 is a handle, 10 is a boiling detection means, 11 and 21 are steam paths, and 14 is open / close It is a valve.

Claims (1)

An inner container for storing a liquid; a container main body that contains and integrates the inner container; a lid that is provided on the upper portion of the container main body and closes the opening of the upper portion of the inner container; and provided in a front portion of the container main body. And a heating means for heating the liquid in the inner container, and a steam cooling means in the lid for introducing steam generated in the inner container to cool and condense in the lid And an electric kettle that is outside the lid body and includes boiling detection means for introducing the steam generated in the inner container and detecting the boiling of the liquid in the inner container, the steam cooling means Introduces steam generated in the inner container, supplies the boiling detection passage outside the lid to the boiling detection means, and again supplies the steam supplied to the boiling detection means outside the lid through the boiling detection passage. Introduced into the lid, the introduced A steam cooling portion for cooling the steam and introducing steam cooling through steam cooling section, and the steam passage of the annular cooling by diverting the lid body in the circumferential direction, a steam cooled through the annular steam passage A steam lead-out passage which is introduced and led to the outside of the lid through the vicinity of the steam lead-in passage from the inner container, and the steam cooling portion and the steam lead-out passage are configured by a passage partitioned by a partition wall, while the annular steam An electric kettle characterized in that the passage is constituted by a cylindrical passage .

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