JP6103102B2 - Liquid heating container - Google Patents

Description

  The present invention relates to a liquid heating container such as an electric kettle that can boil hot water in a main body part that is detachably mounted on a power supply stand, and in particular, a liquid heating container having a configuration capable of realizing weight reduction and cost reduction. About.

  An example of a liquid heating container that has become popular in recent years is an electric kettle.

  The electric kettle responds to the needs of users who want to quickly boil a small amount of hot water when they want to use it, and has a relatively small capacity of about 0.15 liters to 1.2 liters. When placed on the power supply stand, the heater in the main body is energized through the power supply stand, and the boiling water can be boiled in a short time of about 1 to 3 minutes. Most electric kettles do not have a heat retaining function like an electric kettle, and when hot water is boiled, only the main body is lifted from the power base and the main body is tilted to pour hot water in a conventional kettle. Hot water can be poured into a coffee cup from the spout.

  There are two main types of electric kettles currently on the market.

  In the first embodiment, the feature of the electric kettle that can easily boil hot water with electricity is realized as it is. In this type of electric kettle, a water storage section for pouring hot water directly constitutes an outer shell of the main body, and a heater as a heat source is provided below the water storage section. The lid that covers the upper part of the water reservoir is also made of a plate-like member, and is configured to be opened and closed by a lever arranged at a connection portion with the handle so that water can be put into the water reservoir. In the electric kettle of this form, the water storage part that also serves as the outer shell of the main body part is made of resin, so that weight reduction and cost reduction as an electric kettle are achieved.

  The second form of the electric kettle is a configuration that places more emphasis on safety in consideration of boiling water performance by the electric kettle and handling boiling water. The electric kettle according to the second embodiment has a structure in which a main body portion is provided with a water storage container made of metal such as stainless steel as a water storage portion in an outer shell made of metal or resin. In addition, as a cover that covers the opening of the water reservoir, hot water can be poured only when necessary, or even if the electric kettle body is accidentally overturned, hot water will spill. It is configured with a mechanism to prevent this, so that hot water does not spill out from the gap between the main body and the lid, so that the space between the main body and the main body is sealed tightly when the lid is fixed. Yes.

  As an electric kettle of the first form in which the water reservoir made of resin also serves as the outer shell of the main body, automatic so that the boiled liquid will not be blown out even when liquid is stored in the water reservoir beyond the maximum water level In particular, an electric kettle having a mechanism for controlling heating by a heating means has been proposed (see Patent Document 1). In addition, as a second type electric kettle equipped with a metal water storage container inside the main body as a water storage part, an electric having a shape with a high volume ratio that suppresses bulkiness while having a water stop function at the time of falling A kettle has been proposed (see Patent Document 2).

JP 2009-285170 A JP 2009-172109 A

  After boiling the hot water with the main unit placed on the power base as described above, lift the electric kettle, bring the spout closer to the coffee cup or the like where you want to pour hot water, and tilt the main body. Used to pour hot water. The bottom of the main body of the electric kettle has a structure that can be placed directly on a table or other table, so that the user can use the electric kettle after boiling water without returning it to the power supply stand. It is often placed and the user has more opportunities to touch the main body.

  For this reason, when the user accidentally falls the main body, it has a water stop function so that the hot water inside does not spill, or the main body does not get hot due to the hot water inside the water storage section. In an electric kettle, consideration must be given to safety as a product used by a user.

  On the other hand, since the basic need for an electric kettle is that water can be boiled quickly and easily, the electric kettle is easy to use because of its light weight and low-cost configuration. There is also a strong demand. However, for example, the conventional electric kettle described in Patent Document 1 has both the safety and the convenience such that the side surface of the main body easily becomes hot because the water storage portion directly forms the outer shell of the main body. I couldn't say that.

  The present invention solves such problems of the prior art, and is a liquid heating system that has a high level of safety as a product that is used by a user, while having a light weight and low cost configuration. The purpose is to obtain a container.

  In order to solve the above problems, a liquid heating container according to the present invention is capable of opening and closing a main body including a water storage section and a heater arranged to heat the liquid in the water storage section, and an opening of the main body. A lid for sealing, a handle fixed to the outer shell of the main body, and a spout formed on the upper end of the main body on the opposite side in the radial direction, the water storage section being a resin And a housing made of resin that covers the water storage portion with a predetermined gap between the water storage portion, and a protrusion formed on the upper end portion of the housing includes the main body portion. It is fitted in the recessed part formed in the outer side of this.

  The liquid heating container of the present invention is provided with a resin housing in which a water storage portion disposed in the main body is formed of resin and covers the water storage portion with a predetermined gap. For this reason, even when the liquid inside the water storage part boils, the temperature rise of the housing is suppressed to a predetermined range, and a highly safe liquid heating container can be obtained with a simple and lightweight configuration.

It is a perspective view which shows the external appearance of the electric kettle concerning embodiment of this invention. It is the section lineblock diagram seen from the side showing the example of composition of the electric kettle concerning the embodiment of the present invention. It is a perspective view which shows the structure of the housing | casing of the electric kettle concerning embodiment of this invention. It is a perspective view which shows the state which removed the housing | casing of the electric kettle concerning embodiment of this invention. It is a fragmentary sectional view for demonstrating the structure which attaches a housing | casing of the electric kettle concerning embodiment of this invention. It is a cross-sectional block diagram for demonstrating the positional relationship of the upper end part and lower end part of the housing | casing of an electric kettle, and the structure inside a main-body part.

  The liquid heating container according to the present invention includes a main body provided with a water storage section and a heater arranged to heat the liquid in the water storage section, a lid that seals the opening of the main body so as to be opened and closed, A handle fixed to the outer shell of the main body, and a spout formed at the upper end of the main body on the opposite side in the radial direction, the water storage section is formed of resin, And a resin housing that covers the water storage section with a predetermined gap between the water storage section and the water storage section.

  By providing the liquid heating container of the present invention with the above-described configuration, even when the temperature of the outer surface of the water storage unit rises, the temperature rise of the casing in which a predetermined interval is formed between the water storage unit is suppressed to a certain range. Can do. For this reason, it is possible to realize a liquid heating container in consideration of the safety of the user while having a configuration that uses a resin and can be reduced in weight and cost.

  In the liquid heating container according to the present invention, it is preferable that the casing covers at least a position higher than a liquid level when the water storage section is full to a lower end of the water storage section. By doing in this way, the outer surface of the water storage part which becomes high temperature can be reliably covered with a housing | casing.

  Further, it is more preferable that the casing covers up to a position lower than a lower end position of the heater. By doing in this way, the effect which insulates the water sound of a heater part with a case is acquired.

  Furthermore, it is preferable that the said housing | casing is a cylindrical shape whose horizontal cross section which has a discontinuous part in a part of side surface is a substantially C shape. By doing in this way, a housing | casing can be easily attached to a main-body part, the design tolerance of a water storage part shape spreads, and the shape design which considered designability and safety | security can be performed.

  Furthermore, the discontinuous portion of the housing is disposed at the position where the handle is formed, and both end portions of the discontinuous portion of the housing are fitted to fitting portions formed on both side surfaces of the handle. It is preferably fixed. By doing in this way, mutual position adjustment and fixation of a main-body part and a housing | casing can be performed easily.

  In the liquid heating container according to the present invention, a rib that defines a gap between the water storage unit and the housing is formed on at least one of the outer surface of the water storage unit and the inner surface of the housing. It is preferable that By doing in this way, while being able to ensure the clearance gap between a water storage part and a housing | casing, the intensity | strength of the housing | casing with respect to external force can be improved.

  Further, a water amount confirmation window is formed on a side surface of the water storage portion, and a housing window portion is formed at a position overlapping the water amount confirmation window of the housing with a predetermined interval from the water amount confirmation window. It is preferable that By doing in this way, the water storage amount in a water storage part can be confirmed easily from the exterior of a housing | casing, and it can prevent that a housing | casing window part becomes high temperature.

  Hereinafter, as an embodiment of a liquid heating container according to the present invention, an electric kettle will be exemplified and described with reference to the drawings. In addition, in this specification, the concept of the up-down direction used when demonstrating each structural member of an electric kettle shall be based on the up-down direction in the state which mounted the electric kettle main-body part on the power supply stand. Moreover, in description of the liquid stored in an electric kettle, the case where hot water is boiled from water based on the most general usage method of an electric kettle is illustrated and demonstrated.

  FIG. 1 is a perspective view showing an external appearance of an electric kettle according to a first embodiment of the present invention.

  The electric kettle according to the present embodiment includes a main body 1, a handle 2 fixed to the outer shell of the main body 1, and a lid 3 that seals the opening at the top of the main body 1 so as to be openable and closable. 1 is detachably mounted on the power base 4.

  A spout portion 5 is formed to protrude from the side surface of the main body portion on the upper side of the main body portion 1 on the side opposite to the handle 2 in the radial direction, and inside the main body portion 1 such as water or hot water in which this water is boiled. The liquid stored in the water storage section can be poured into a coffee cup or the like by tilting the main body section 1.

  A resin cover 6 that is a housing is arranged so as to cover the side surface of the main body 1. The resin cover 6 is provided with a transparent casing window 10, and a water amount confirmation window through which the amount of liquid stored in the water storage section of the main body 1 can be seen through the casing window 10. 11 can be visually recognized from the outside.

  The electric kettle according to the present embodiment has a structure in which the lid 3 is inserted from above the main body 1 to seal the opening of the main body 1. The detachable lever 7 for releasing the spring mechanism for fixing the lid 3 and the passage from the inside of the main body 1 to the spout 5 are opened when pouring hot water or the like stored in the main body 1. A hot water supply switch 8 is arranged. Note that the electric kettle described in the present embodiment has a configuration in which the spout portion 5 for pouring the liquid in the water storage portion also serves as the vapor discharge port of the vapor path for discharging the vapor, so Vapor discharge ports that are often arranged on the two sides are not formed.

  The handle 2 is provided with a power switch 9 for starting energization of the heater, which can heat and boil a liquid such as water stored in the body 1. The power switch 9 has a function of detecting that hot water in the main body 1 has boiled and automatically stopping energization of the heater to prevent emptying.

  FIG. 2 is a cross-sectional view of the electric kettle of the present embodiment as viewed from the side of the straight line connecting the spout portion 5 and the handle 2.

  The main body portion 1 of the electric kettle is formed of a resin material such as PP (polypropylene), and the inner wall of the side surface forms the side surface of the water storage portion 12 capable of storing water. A heating plate 13 made of metal such as stainless steel is fitted to the lower part of the water storage part 12 from the lower end side of the main body part 1. The heating plate 13 forms the bottom surface of the water storage unit 12 formed by the inner wall of the side surface of the main body unit 1. On the lower surface side of the heating plate 13, a heater 14 is disposed in contact with the heating plate 13, and the water stored in the water storage unit 12 formed by the inner wall of the side surface of the main body 1 and the heating plate 13 is heated and heated. It can be carried out.

  In the upper part of the water storage part 12 formed inside the main body part 1, an inclined part 12 a whose inner diameter becomes smaller toward the upper side is formed. By forming the inclined portion 12a at the upper portion of the water storage portion 12 in this way, a receiving portion for the lid body 3 inserted from above is formed in the upper opening portion of the main body portion 1, and the liquid in the water storage portion 12 is allowed to flow. When extracting from the spout 5, so-called hot water does not occur.

  The lid 3 arranged so as to cover the opening formed in the upper part of the main body 1 is a passage when the liquid stored in the water storage 12 is poured out from the spout 5, which is a solid line in FIG. 2. A hot water supply path 15 indicated by an arrow and a steam path 16 indicated by a dotted arrow in FIG. 2, which are paths for discharging the steam in the water storage unit 12 to the outside, are formed.

  The hot water supply path 15 is a path configured by a pouring path 18 that continues from the water storage section 12 to the spout section 5 through a water pouring space 17 that extends into the lid 3. A core 19, which is a movable closing member that opens and closes the hot water supply path 15, is disposed in the water injection space 17.

  The core 19 is a substantially T-shaped member composed of a disk-shaped main body portion 19a and a columnar protrusion 19b disposed on the upper surface of the central portion of the main body portion 19a. The tip of the protrusion 19b is attached to the lower surface of the hot water supply switch 8 exposed on the upper surface of the lid 3. The hot water supply switch 8 is pressed against the upper surface side of the lid 3 by the spring member 20 disposed around the protruding portion 19b of the core 19, and the main body 19 of the core 19 is in a state where the hot water switch 8 is not pressed down. The peripheral portion of the portion 19 a is pressed against the opening on the water storage portion 12 side of the water injection space 17 to seal it and close the hot water supply path 15. On the other hand, when the hot water supply switch 8 is locked in a depressed state, a gap is generated between the periphery of the body 19a of the core 19 and the opening of the water injection space 17, and the water storage unit 12 and the water injection space 17 are connected. The hot water in the water storage section 12 can be poured from the spout section 5. A plug packing 21 is disposed on the periphery of the main body 19 a of the core 19 as a seal member for improving the adhesion between the core 19 and the opening of the water injection space 17.

  The steam path 16 of the electric kettle according to the present embodiment is a boiling detector 23 disposed on the side near the main body 1 of the handle 2 via a steam space 22 formed on the handle 2 side of the lid 3 from the water reservoir 12. Toward the inside of the lid body 3 again from the boiling detector 23, passing through the steam passage 24 penetrating the inside of the lid body 3 from the handle 2 side toward the spout portion 5 side in a substantially horizontal direction, The water injection space 17 is reached. After that, similarly to the hot water supply path 15, it reaches the spout portion 5 that also serves as the steam outlet of the steam path 16 through the spout path 18.

  Thus, in the electric kettle of this embodiment, the steam path 16 that connects the water storage section 12 and the spout section 5 is always open, so that steam generated at the time of boiling water and thereafter is released to the outside. The pressure of the water storage part 12 in the main body 1 can be prevented from rising. Further, in the electric kettle of the present embodiment, the steam outlet of the steam passage 16 is not formed on the upper surface of the lid 3 as a steam discharge port, but is a spout portion 5 used for hot water supply. The upper surface of the lid 3 that is easy to touch when the user operates 8 is not heated, and the danger of directly touching the steam discharged from the steam discharge port can be avoided.

  Below the power switch 9 provided on the top of the handle 2, a contact portion 25 that controls the energization of the heater 14 in conjunction with the power switch 9 is disposed. In the electric kettle of the present embodiment, the steam path 16 is introduced from the lid 3 into the boiling detector 23 via the inside of the handle 2. For example, a bimetal switch whose shape changes depending on the temperature is arranged in the boiling detection unit 23, and when steam having a predetermined temperature or higher reaches the boiling detection unit 23 via the vapor path 16, the bimetal switch operates, and the heater 14 Stop energizing the. In this way, more than necessary power is not consumed after the hot water in the water storage section 12 is boiled.

  The power supply base 4 on which the main body 1 is placed has a stationary surface 27 having a shape corresponding to the lower surface 26 of the bottom of the main body 1. When the lower surface 26 of the main body 1 is placed on the stationary surface 27, the power plug 28 of the main body 1 is fitted into the power socket 29 of the power base 4. As described above, the main body 1 is placed on the power supply 4, so that the power supplied to the power supply 4 via a power cable (not shown) that is plugged into the commercial power supply is arranged at the lower part of the main body 1. The heater 14 can be supplied.

  A resin cover 6, which is a housing made of resin such as PP, is disposed on the side surface of the main body 1. An annular rib 30 is formed on the main body portion 1 of the electric kettle according to the present embodiment toward the outside, so that a predetermined gap 31 can be secured between the resin cover 6 and the main body portion 1.

  At the upper end portion of the resin cover 6, a protruding portion 6 a formed toward the main body portion 1 side is formed. The protrusion 6 a is fitted into a recess 1 a formed outside the side surface of the main body 1. Further, the lower end portion 6 b of the resin cover 6 is fitted with a receiving portion 1 b formed at the lower portion of the main body portion 1. Thus, the protrusion 6a at the upper end of the resin cover 6 has a recess 1a formed on the side surface of the main body 1 and the lower end 6b of the resin cover 6 is fitted with the receiving portion 1b of the main body 1. The resin cover 6 is fixed to the main body 1 at a correct position.

  In addition, the resin cover 6 of the electric kettle of this embodiment has a discontinuous part in a part of the side surface as will be described later, and the end part of the discontinuous part is fitted with the main body side surface side part 2a of the handle 2. Together, the main body 1 is fixed. For this reason, the handle 2 includes a grasping portion 2b that is held by a user and spaced from the main body side surface portion 2a, and a connecting portion 2c that connects the main body side surface portion 2a and the grasping portion 2b. The overall shape viewed from the side is substantially D-shaped.

  The handle 2 is connected to the main body 1 at the upper part where the above-described boiling detection unit 23 is formed, but is not connected to the main body 1 at the lower connecting part 2c, and the upper main body. It can be rotated by a predetermined angle around a fixed part with the part. Then, in a state of being fitted to the discontinuous portion of the housing 6, the fixing claw 33 is engaged with the fixing frame 32 formed on the side surface of the main body portion 1, and the lock pin 34 is inserted from the lower end portion so that the main body portion. The lower end of the handle 2 is fixed in the vicinity of the lower surface 26 of 1.

  FIG. 3 is a perspective view showing the shape of a resin cover used in the electric kettle of the present embodiment, and FIG. 4 is a perspective view showing an appearance of the resin cover removed from the electric kettle of the present embodiment.

  As shown in FIG. 3, the resin cover 6 used in the electric kettle of the present embodiment has a substantially cylindrical shape whose diameter gradually increases from the upper part to the lower part, and the horizontal cross section is substantially C-shaped. A discontinuous portion is formed on a part of the side surface. By forming the resin cover 6 into a shape having a discontinuous portion on the side surface so that the horizontal cross-sectional shape is substantially C-shaped, when the resin cover 6 is attached to the outer periphery of the main body portion 1, the resin cover 6 is not utilized by utilizing the elasticity of the resin. The main body 1 can be covered while widening the width of the continuous portion. In the case of a resin cover having a substantially circular horizontal cross section without discontinuous portions, it is necessary to cover the main body portion 1 from below or above, and a spout is formed on the side surface of the main body portion 1. The design margin in the shapes of both the main body 1 and the resin cover 6 becomes narrow, for example, it becomes impossible to form protrusions such as the portion 5.

  Note that the resin cover 6 of this embodiment has a substantially cylindrical shape whose diameter gradually increases from the upper part to the lower part. The side part of the main body 1 shown in FIG. 4 is directed from the upper part to the lower part. In this way, the electric kettle has a sense of stability from the viewpoint of physical and visual design. Can do. The shape of the side surface of the water storage portion 12 of the resin cover 6 and the main body portion 1 is the same as the upper and lower sides, including a substantially cylindrical shape in which the diameter gradually increases from the top to the bottom as in the electric kettle of the present embodiment. It can be selected as appropriate according to the design of the electric kettle.

  On the upper end portion of the resin cover 6, a protruding portion 6a protruding inward is formed intermittently. As shown in FIG. 2, the protrusion 6a at the upper end of the resin cover 6 is fitted into the recess 1a provided on the upper part of the side surface of the main body 1 shown in FIG.

  At both ends of the discontinuous portion on the side surface of the resin cover 6, engaging recesses 6 c are formed in the vertical direction along the side surface to fit the discontinuous portion of the resin cover 6 and the main body side surface portion 2 a of the handle 2. ing.

  A housing window portion 10 is formed on the side surface of the resin cover 6 so that the water amount confirmation window 11 formed on the side surface of the main body 1 can be seen from the outside of the resin cover 6. The casing window portion 10 is formed by a transparent resin sheet or resin plate arranged so as to cover the surface of the recess, while a frame-shaped opening is formed in the recess formed by being recessed from the surface of the resin cover 6. Is formed. By forming the housing window 10 in this way, a transparent resin sheet or resin that forms the surface of the water amount confirmation window 11 formed in the main body 1 and the housing window 10 depending on the thickness of the resin cover 6 itself. A gap can be secured between the plate and the heat of the water amount confirmation window 11 where hot water is in contact with the inside of the housing window portion 10 is prevented from being directly transmitted to the outer surface of the resin cover 6. can do.

  As shown in FIG. 4, an upper rib 35 formed in the vertical direction is also formed on the outer surface of the water reservoir 12 of the main body 1 covered with the resin cover 6, and the main body 1 covered with the resin cover 6. Lower ribs 36 formed in the vertical direction are arranged at predetermined intervals below the outer surface of the water reservoir 12. Further, an annular rib 30 formed in the horizontal direction is disposed in an intermediate portion of the outer surface of the water storage section 12 of the main body 1 covered with the resin cover 6 so as to surround the side surface of the main body 1 in an annular shape. . In the electric kettle of the present embodiment, one annular rib 30 is arranged, but the number of annular ribs 30 and the arrangement position thereof are not limited to those illustrated in FIG. Moreover, it is also possible to form the annular rib 30 in an intermittent shape having gaps at predetermined intervals. In the electric kettle of the present embodiment, the annular rib 30 is discontinuous at the portion where the water amount confirmation window 11 is formed. .

  Thus, by forming ribs 30, 35, 36 having a predetermined shape from the surface of the main body 1 to the outside on the portion covered with the resin cover 6 on the outer surface of the main body 1, A predetermined interval can be accurately formed between the surface and the inner surface of the resin cover 6. In addition, by providing a rib that defines the distance between the outer surface of the main body 1 and the resin cover 6, it is possible to prevent the resin cover from being greatly deformed when an external force is applied to the side surface of the resin cover 6. be able to.

  In the electric kettle of the present embodiment, an air layer can be formed in the gap portion by forming a predetermined gap between the main body 1 and the resin cover 6, A soundproofing effect can be produced. Note that, as the electric kettle of the present embodiment, the ribs are all exemplified on the outer surface of the main body 1. However, the ribs can be formed on the inner surface of the housing 6. Also, ribs can be formed on both the outer surface of the main body 1 and the inner surface of the housing 6.

  In the electric kettle of this embodiment, since the main body 1 that is also the water storage portion 12 is formed of resin, the water amount confirmation window 11 in which a transparent member is fitted on the side surface of the main body 1 can be easily formed. Since the water amount confirmation window 11 can be visually recognized from the outside through the transparent sheet or transparent plate of the housing window 10 formed in the housing 6 shown in FIG. 3, the amount of water stored in the water reservoir 12 can be easily confirmed. .

  FIG. 5 is a perspective view showing a state where the electric kettle of the present embodiment is cut in the horizontal direction at the upper end portion of the resin cover.

  As shown in FIG. 5, in the electric kettle of the present embodiment, the fitting portions 2 d formed on the both side surface portions of the main body side surface side portion 2 a of the handle 2 are formed at the end portions of the discontinuous portion of the resin cover 6. The resin cover 6 that covers the side surface of the main body 1 can be fixed by fitting with the fitting recess 6c.

  As shown in FIG. 5, the fitting portion 2 d of the side surface side portion 2 a of the handle 2 and the fitting recess 6 c formed at the end of the discontinuous portion of the housing 6 are fitted. 2, the fixing claw 33 is engaged with the fixing frame 32 formed on the side surface of the main body portion 1, and the lock pin 34 is inserted from the lower end portion of the main body portion 1, so that it is near the lower surface 26 of the main body portion 1. The lower end of the handle 2 is fixed.

  Thus, the electric kettle of the present embodiment uses the fact that the handle 2 and the resin cover 6 each having the upper end fixed to the outer shell of the main body 1 are made of resin having a predetermined elasticity. The resin cover can be covered from the side of the main body 1, and the resin cover 6 with the main body 1 can be easily and easily held down by holding the discontinuous portion of the side surface of the resin cover 6. It can be securely fixed at a predetermined position.

  FIG. 6 is a diagram illustrating the positional relationship between the main body portion and the resin cover in the electric kettle of the present embodiment. FIG. 6 shows a cross-sectional configuration of the electric kettle viewed from the side of the line connecting the spout part and the handle, as in FIG.

  The resin cover 6 of the electric kettle of the present embodiment has an upper end 61 disposed at a position higher than the inclined surface 12a at the upper end of the water storage section 12, and a lower end 62 of the heater 14 disposed inside the main body section 1. It is arranged at a position lower than the bottom. By doing in this way, the resin cover 6 will cover from the upper end part of the water storage part 12 formed in the main-body part 1 to a lower end part.

  Generally, when boiling the liquid inside the water storage unit 12, the upper limit water level of the liquid that can be put into the water storage unit 12 is set with respect to the upper end of the water storage unit 12 so that the liquid boils and does not blow out. It is defined at a slightly lower position with a predetermined margin. In the case of the electric kettle of the present embodiment, as an example, a full water surface position 37 is set at the lower end of the inclined surface 12a. Normally, at the full water level position, characters such as “MAX” and “Kokomade” and a horizontal line are formed on the inner side surface of the water storage section 12 and the water amount confirmation window, etc. It warns not to put liquid until it becomes high.

  For this reason, the resin cover 6 of the electric kettle of this embodiment covers from a position higher than the liquid level when the liquid stored in the main body 1 is full to a position lower than the lower end position of the water storage section 12. Will be. By doing in this way, even when the liquid in the water storage part 12 boils and becomes high temperature, the whole side surface of the main-body part 1 in which a high temperature liquid exists inside can be covered with the resin cover 6. FIG. When the present inventors measured, when water was poured to the full water level position 37 under the inclined part 12a of the water storage part 12 inside the main body part 1 and the water was boiled to 100 ° C., The outer surface of the side surface was about 80 ° C., whereas the outer surface temperature of the resin cover 6 arranged with a gap of about 1 cm between them was about 40 to 50 ° C. As described above, a predetermined gap is formed between the main body 1 and the resin cover 6 and the air layer is interposed therebetween, so that a practically sufficient heat insulating effect can be obtained on the outer surface of the resin cover corresponding to the outermost surface of the electric kettle. It was confirmed that

  Further, in the electric kettle of the present embodiment, as shown in FIG. 6, the lower end 62 of the resin cover 6 is further below the arrangement position of the heater 14 arranged on the lower surface side of the metal plate 13 inside the main body 1. Covers up to. By doing in this way, when the liquid heated by the heater 14 boils with the resin cover 6, the sound by the bubble formed in the metal plate 13 can be shielded, and the soundproofing effect can be exhibited. According to the measurement by the inventors, the boiling sound that was 50 dB when the resin cover 6 is not provided is reduced to about 45 dB by arranging the resin cover 6 so as to cover the side of the heater 14. I was able to.

  Furthermore, because the casing 1 is arranged so as to cover the outside of the water storage unit 12 in which the liquid is placed, for example, the electric kettle is dropped or another object is hit against the side of the electric kettle. Even in this case, even if the housing 1 is cracked, the possibility that the water storage section 12 is cracked can be reduced. For this reason, the situation where internal hot water leaks out from the crack part of the water storage part 12 can be avoided effectively.

  As described above, in the electric kettle of the present embodiment, the water storage part is formed of resin, and the resin kettle is provided to cover the water storage part with a predetermined gap between the water storage part. Thus, even when the liquid inside the water storage part boils, the temperature rise of the housing can be suppressed to a predetermined range, and a highly safe electric kettle can be realized while having a configuration that can be simplified and reduced in weight. .

  In addition, in the said embodiment, although what used the member integrally formed from resin as a main-body part was illustrated and demonstrated, as a main-body part of the electric kettle of this embodiment, it is comprised by several members. What was used can be used, and parts other than a water storage part can be formed with members other than resin, such as a metal.

  Further, in the above embodiment, the description has been given by exemplifying a configuration in which the outlet of the steam path is a spout portion without having a steam discharge port as a lid, but a conventionally known steam discharge port on the upper surface is described. It can be set as an electric kettle provided with the cover body of the structure formed. In this case, it is possible to provide a mechanism for preventing the leakage of hot water from the steam path when the main body part falls by providing the water stop valve at the time of the fall. Furthermore, the lid body is not limited to the one that is inserted into the upper opening of the main body described above, but can be configured to cover the upper surface of the water storage portion with a lid member having a simple plate shape.

  Furthermore, in the above embodiment, an example in which the boiling detection unit is provided inside the handle is disclosed. However, in the electric kettle of the present embodiment, there is a gap between the water storage unit and the housing. Can also be arranged. By doing in this way, the situation where the temperature of the handle part which a user's hand touches rises can be avoided.

  In addition to the electric kettle exemplified above, the liquid heating container of the present invention includes a main body part that can heat the liquid inside the resin water storage part with a heater, and has a predetermined space between the water storage part. The present invention can also be applied to electric pots, humidifiers, and the like that are configured to be covered with a resin casing through a gap.

  The liquid heating container according to the present invention is useful as a container that can be reduced in weight and has a simple structure, but in particular, is considered in consideration of safety against the high temperature liquid being placed inside the water storage section.

1 Body 2 Handle 3 Lid 5 Spout 6 Resin cover (housing)
12 Water reservoir 14 Heater 31 Gap

Claims (1)

A main body comprising a water reservoir and a heater arranged to heat the liquid in the water reservoir;
A lid for closing the opening of the main body so as to be opened and closed;
A handle fixed to the outer shell of the main body,
A spout portion formed at the upper end of the main body portion opposite to the handle in the radial direction;
The water storage part is formed of resin, and includes a resin casing that covers the water storage part through a predetermined gap between the water storage part,
A liquid heating container, wherein a protrusion formed at an upper end of the housing is fitted into a recess formed outside the side surface of the main body.

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