Electric water heater

Abstract

To provide an electric water heater that can prevent water droplets from dripping outside from the exhaust vent. [Solution] An electric kettle, which is an example of an electric water heater, has a lid unit. The lid unit has an exhaust port 60 for releasing steam and a top surface 63 that covers the upper part of the space 260 inside the exhaust port 60. The top surface 63 has a projection 64. This increases the surface area of ​​the top surface 63. As a result, condensed water droplets are well held on the top surface 63 by surface tension. Therefore, when the lid unit is tilted, it is possible to prevent water droplets from dripping out of the exhaust port 60.

Description

Technical Field

[0001] The present invention relates to an electric kettle.

Background Art

[0002] Conventionally, electric kettles such as electric pots and electric kettles have been known. In particular, in recent years, electric kettles that are smaller in size than electric pots and have a relatively short boiling time have attracted attention. Conventional electric kettles are described, for example, in Patent Document 1.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In this type of electric kettle, an exhaust port is provided in the lid unit. When steam is generated in the storage container by boiling water, the steam is discharged from the exhaust port. This suppresses the internal pressure of the storage container from becoming excessively high.

[0005] However, condensation may occur on the inner part of the exhaust port of the lid unit due to the steam flowing from the storage container to the exhaust port. In that case, when the electric kettle is tilted or the lid unit is removed, the condensed water droplets may drip from the exhaust port to the outside. Similarly, in the case of an electric pot, when the lid unit is opened, the water droplets condensed inside the exhaust port may drip from the exhaust port to the outside.

[0006] Therefore, an object of the present invention is to provide an electric kettle that can suppress water droplets from dripping from the exhaust port to the outside.

Means for Solving the Problems

[0007] The present invention relates to an electric water heater comprising a bottomed cylindrical storage container, a lid unit attached to the top of the storage container, and a heating unit for heating the liquid inside the storage container, wherein the lid unit has an exhaust port for discharging steam from inside the storage container and a top surface that covers the upper part of the space inside the exhaust port, and the top surface has a projection.

[0008] According to the present invention, the surface area of ​​the top surface is increased by the protrusions. As a result, water droplets condensed from steam are well retained on the top surface by surface tension. Therefore, when the lid unit is tilted, it is possible to suppress water droplets from dripping out of the exhaust port. In addition, by increasing the amount of water droplets condensed on the top surface, the amount of steam discharged to the outside from the exhaust port can be reduced.

[0009] Preferably, the projection includes transverse ribs extending in a direction intersecting the direction toward the exhaust port. This would obstruct the flow of water droplets from the top surface toward the exhaust port. Therefore, the dripping of water droplets from the exhaust port to the outside can be further suppressed.

[0010] Furthermore, it is desirable that the top surface has recesses formed by the protrusions. This would allow condensed water droplets to be retained in the recesses. This would further suppress the dripping of water droplets from the exhaust vent to the outside.

[0011] Furthermore, it is desirable that the protrusions include multiple intersecting ribs in a grid pattern. This would allow water droplets to be well held between the grid-like ribs, and the flow of water droplets toward the exhaust port would be obstructed by the ribs. This would further suppress water droplets from dripping out of the exhaust port.

[0012] Furthermore, the electric water heater may be equipped with a dispensing pipe extending forward and upward from the lower end of the side wall of the storage container. In this structure, steam cannot be discharged from the dispensing pipe when boiling water, so it is necessary to enlarge the exhaust port of the lid unit. According to the present invention, it is possible to enlarge the exhaust port while suppressing water droplets from dripping out of the exhaust port.

[0013] Furthermore, the exhaust port may be open towards the front. In this configuration, when the electric water heater is tilted forward to pour hot water, the exhaust port will be angled downwards, but according to the present invention, it is possible to suppress water droplets from dripping out of the exhaust port.

[0014] Furthermore, the electric water heater further comprises an outer casing that covers the storage container and the lid unit, and it is desirable that the lid unit has a warning mark, and that the warning mark is not exposed when the lid unit is properly attached to the outer casing, and is exposed when the lid unit is not properly attached to the outer casing. This allows the user of the electric water heater to recognize when the lid unit is not properly attached to the outer casing. [Effects of the Invention]

[0015] According to the present invention, the surface area of ​​the top surface is increased by the protrusions. As a result, water droplets condensed from steam are well retained on the top surface by surface tension. Therefore, when the lid unit is tilted, it is possible to suppress water droplets from dripping out of the exhaust port. In addition, by increasing the amount of water droplets condensed on the top surface, the amount of steam discharged to the outside from the exhaust port can be reduced. [Brief explanation of the drawing]

[0016] [Figure 1] This is a perspective view of an electric kettle. [Figure 2] This is a side view of an electric kettle. [Figure 3] This is a side view of an electric kettle, excluding the outer casing. [Figure 4] This is a perspective view of the lid unit. [Figure 5] This is a disassembled perspective view of the lid unit. [Figure 6] This is a perspective view of the exhaust component, seen from diagonally below. [Figure 7] This is a bottom view of the exhaust component. [Figure 8] This is a bottom view of the exhaust member in a modified form. [Figure 9] It is a bottom view of an exhaust member according to a modified example. [Figure 10] It is a bottom view of an exhaust member according to a modified example. [Figure 11] It is a bottom view of an exhaust member according to a modified example.

Mode for Carrying Out the Invention

[0017] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In this embodiment, an electric kettle 1 which is an example of an electric water boiler will be described. In the following description, in a state where the electric kettle 1 is upright, the side of the pouring spout 40 of the electric kettle 1 is defined as "front", and the side of the handle 53 is defined as "rear". Also, a direction perpendicular to the front-rear direction and the up-down direction is defined as the left-right direction.

[0018] <1. Overall Configuration of Electric Kettle> FIG. 1 is a perspective view of an electric kettle 1 according to an embodiment of the present invention. FIG. 2 is a side view of the electric kettle 1. FIG. 3 is a side view of the electric kettle 1 excluding the exterior body 50. This electric kettle 1 is a crane mouth type electric water boiler that heats water stored inside. As shown in FIGS. 1 to 3, the electric kettle 1 of this embodiment includes a storage container 10, a lid unit 20, a heating unit 30, a pouring spout 40, and an exterior body 50. In FIG. 2, a power supply stand 70 for supplying power to the electric kettle 1 is shown by a two-dot chain line.

[0019] The storage container 10 is a bottomed cylindrical container that stores water or hot water inside. The storage container 10 is formed of, for example, resin. The storage container 10 has a plate-shaped bottom 11 and a cylindrical side wall 12 that extends upward from the edge of the bottom 11. Note that the upper surface of the heating unit 30 described later may serve as the bottom 11. That is, the storage container 10 may be composed of a cylindrical member that becomes the side wall 12 and the upper surface of the heating unit 30 that becomes the bottom 11.

[0020] The lid unit 20 is a unit that covers the opening at the top of the storage container 10. The lid unit 20 is detachable from the upper end of the main body cover 51, which will be described later. When the lid unit 20 is attached, the top of the storage container 10 is covered by the lid unit 20. When the lid unit 20 is removed, the top of the storage container 10 is opened, allowing water to be added to the storage container 10.

[0021] The heating unit 30 is a heater for heating the water in the storage container 10. The heating unit 30 is located at the bottom 11 of the storage container 10. For example, a mica heater, a sheathed heater, or a printed heater can be used for the heating unit 30. When the electric kettle 1 is used, power is supplied to the heating unit 30, causing it to generate heat. As a result, the water in the storage container 10 is heated to boiling water.

[0022] The dispensing pipe 40 is a nozzle for dispensing hot water from the storage container 10. The dispensing pipe 40 is made of, for example, stainless steel. The dispensing pipe 40 has a connection port 41 at one end and a spout 42 at the other end. The connection port 41 of the dispensing pipe 40 is connected to the front of the lower end of the side wall 12 of the storage container 10. The dispensing pipe 40 extends forward and upward from the connection port 41 in a roughly S-shape. The spout 42 of the dispensing pipe 40 is located above the upper end of the storage container 10.

[0023] The outer casing 50 is a cover that covers the outer surface of the electric kettle 1. The outer casing 50 is made of, for example, a heat-resistant synthetic resin. As shown in Figures 1 and 2, the outer casing 50 has a main body cover portion 51, a dispensing tube cover portion 52, and a handle 53. The main body cover portion 51 is a substantially cylindrical portion that covers the storage container 10, the lid unit 20, and the heating portion 30. The dispensing tube cover portion 52 is a tubular portion that covers the dispensing tube 40.

[0024] The handle 53 extends rearward from the rear edge of the upper end of the main body cover portion 51. That is, the handle 53 and the dispensing tube 40 are located on opposite sides of the central axis A of the storage container 10. The handle 53 is provided with a switch (not shown) for switching the power supply to the heating portion 30 ON / OFF.

[0025] When using the electric kettle 1, the user first removes the lid unit 20 and supplies water into the storage container 10. Then, they reattach the lid unit 20, place the electric kettle 1 on the power supply base 70, and switch the above switch from OFF to ON. This supplies power to the heating unit 30, causing it to heat up. As a result, the water in the storage container 10 is heated. After that, the user grasps the handle 53, lifts the electric kettle 1, and tilts it forward. This causes the hot water in the storage container 10 to be poured through the pouring pipe 40 and out of the spout 42 into an external container (such as a teacup or mug).

[0026] <2. Structure of the lid unit> Next, the detailed structure of the lid unit 20 described above will be explained. Figure 4 is a perspective view of the lid unit 20. Figure 5 is an exploded perspective view of the lid unit 20. As shown in Figures 4 and 5, the lid unit 20 includes a lid case 21, a lid cover 22, an inner lid 23, a packing 24, a flow path unit 25, and an exhaust member 26.

[0027] The lid case 21 is a bottomed cylindrical component that forms the lower part of the lid unit 20. The lid case 21 is made of a hard synthetic resin that has heat resistance. The lid case 21 has ventilation holes 211. The ventilation holes 211 are holes that connect the upper surface and the lower surface of the bottom of the lid case 21.

[0028] The lid cover 22 is a lidded cylindrical component that forms the upper part of the lid unit 20. The lid cover 22 is made of a hard synthetic resin that has heat resistance. The lid cover 22 covers the opening at the top of the lid case 21. The lid cover 22 has a pair of gripping parts 221 for the user to grasp. In addition, a first opening 222 is provided on the front surface of the lid cover 22. The first opening 222 penetrates the front surface of the lid cover 22 in the front-to-back direction.

[0029] The inner lid 23 is a bottomed cylindrical member fixed to the lower surface of the lid case 21. The inner lid 23 is made of a metal such as stainless steel. The inner lid 23 has a plurality of second openings 231 on its right and left sides. The second openings 231 penetrate the sides of the inner lid 23 in the left-right direction. Steam in the storage container 10 enters the interior of the inner lid 23 through the second openings 231.

[0030] The packing 24 is attached along its outer surface at the boundary between the lid case 21 and the inner lid 23. The packing 24 is an annular sealing member. The packing 24 is made of an elastically deformable elastomer or silicone rubber. The packing 24 adheres tightly to the edge of the opening at the top of the storage container 10 while elastically deforming. This seals the space between the top of the storage container 10 and the lid unit 20. Therefore, leakage of hot water from the storage container 10 to the outside through the gap between the storage container 10 and the lid unit 20 is suppressed.

[0031] The flow path unit 25 is a unit that forms a steam flow path. The flow path unit 25 is made up of multiple parts. The flow path unit 25 is housed inside a casing composed of a lid case 21 and a lid cover 22. The flow path unit 25 is fixed to the upper surface of the lid case 21. The flow path unit 25 has an inlet hole 251 formed on its lower surface and an outlet hole 252 formed on its upper surface. In addition, a flow path (not shown) is formed inside the flow path unit 25 that connects the inlet hole 251 and the outlet hole 252. The inlet hole 251 is connected to a vent hole 211 of the lid case 21.

[0032] The exhaust member 26 is a lidded cylindrical member fixed to the upper part of the flow path unit 25. The exhaust member 26 is housed together with the flow path unit 25 inside a housing composed of a lid case 21 and a lid cover 22. The exhaust member 26 is made of a hard synthetic resin with heat resistance. The outlet hole 252 of the flow path unit 25 is connected to the opening at the bottom of the exhaust member 26.

[0033] The exhaust member 26 has an exhaust port 60 on its front surface. The exhaust port 60 includes a plurality of through holes arranged in the left-right direction. Each through hole penetrates the front surface of the exhaust member 26 in the front-rear direction. The exhaust port 60 is also exposed to the outside of the lid unit 20 by overlapping with the first opening 222 of the lid cover 22. The internal space of the exhaust member 26 communicates with the external space of the lid unit 20 through the exhaust port 60.

[0034] When water is boiled in the electric kettle 1, steam is generated inside the storage container 10. This steam enters the interior of the flow path unit 25 through the second opening 231, the vent hole 211, and the inlet hole 251. The steam that exits from the outlet hole 252 of the flow path unit 25 is then discharged to the outside of the lid unit 20 through the exhaust port 60 of the exhaust member 26. This prevents the internal pressure of the storage container 10 from rising excessively. Therefore, it is possible to prevent hot water from gushing out of the dispensing pipe 40 due to the internal pressure of the storage container 10.

[0035] <3. Shape of exhaust components> Figure 6 is a perspective view of the exhaust member 26 from a diagonally lower side. Figure 7 is a bottom view of the exhaust member 26. As shown in Figures 5 to 7, the exhaust member 26 has a top plate portion 61 and a cylindrical portion 62 extending downward from the edge of the top plate portion 61. The exhaust port 60 described above is formed in the cylindrical portion 62. Inside the exhaust member 26, there is an exhaust space 260 which is the space inside the exhaust port 60 (the space behind the exhaust port 60). The top plate portion 61 covers the upper part of the exhaust space 260. Hereinafter, the lower surface of the top plate portion 61 will be referred to as the top surface 63 of the exhaust space 260.

[0036] The high-temperature steam generated in the storage container 10 rapidly cools down in the exhaust space 260 directly in front of the exhaust port 60. As a result, water droplets condense on the top surface 63 of the exhaust space 260 due to steam condensation. These water droplets may drip out of the exhaust port 60 when the electric kettle 1 is tilted or when the lid unit 20 is removed.

[0037] Therefore, in the electric kettle 1 of this embodiment, a projection 64 is provided on the top surface 63, as shown in Figures 6 and 7. The projection 64 protrudes downward from the lower surface of the top plate portion 61. In this way, the surface area of ​​the top surface 63 is increased compared to the case where there is no projection 64 on the top surface 63. As a result, condensed water droplets are well held on the top surface 63 by surface tension. Therefore, when the lid unit 20 is tilted, it is possible to suppress water droplets from dripping to the outside from the exhaust port 60. In addition, by increasing the amount of water droplets that condense on the top surface 63, the amount of steam discharged to the outside from the exhaust port 60 can be reduced.

[0038] As shown in Figures 6 and 7, the projection 64 of this embodiment includes a plurality of longitudinal ribs 641 and a plurality of transverse ribs 642. The longitudinal ribs 641 extend in the front-rear direction, which is the direction from the top surface 63 toward the exhaust port 60. The transverse ribs 642 extend in the left-right direction, which is the direction intersecting the direction from the top surface 63 toward the exhaust port 60. The plurality of longitudinal ribs 641 and the plurality of transverse ribs 642 intersect with each other.

[0039] In other words, the projection 64 of this embodiment includes a plurality of intersecting ribs 641 and 642 in a grid pattern. This creates recesses 640 between the grid-like ribs 641 and 642. As a result, water droplets are held in these recesses 640. Furthermore, the flow of water droplets from the top surface 63 toward the exhaust port 60 is obstructed by the lateral ribs 642. This further suppresses the dripping of water droplets from the exhaust port 60 to the outside.

[0040] In a swan-neck type electric kettle 1 like the one in this embodiment, hot water is also stored inside the spout 40. Therefore, steam generated in the storage container 10 cannot be discharged to the outside through the spout 40. Consequently, in a swan-neck type electric kettle 1, the exhaust port 60 needs to be larger than that of other types of electric kettles. Specifically, the opening area of ​​the exhaust port 60 is designed to be larger than the opening area of ​​the spout 42. This allows for efficient discharge of steam from the storage container 10.

[0041] However, increasing the opening area of ​​the exhaust port 60 increases the likelihood of condensed water droplets dripping from the exhaust port 60. However, as in this embodiment, if a projection 64 is provided on the top surface 63 of the exhaust space 260 inside the exhaust port 60, the water droplets will be held on the top surface 63. Therefore, it is possible to enlarge the exhaust port 60 while suppressing the dripping of water droplets from the exhaust port 60 to the outside.

[0042] Furthermore, in the electric kettle 1 of this embodiment, the exhaust port 60 is open towards the front. This prevents steam ejected from the exhaust port 60 from hitting the user. However, in this structure, when the electric kettle 1 is tilted forward to pour hot water, the exhaust port 60 is positioned at an angle downward. This increases the likelihood that condensed water droplets will drip from the exhaust port 60. However, as in this embodiment, if a projection 64 is provided on the top surface 63 of the exhaust space 260 inside the exhaust port 60, the water droplets will be held on the top surface 63. Therefore, it is possible to prevent water droplets from dripping from the exhaust port 60 to the outside.

[0043] Furthermore, as shown in Figures 6 and 7, the projection 64 of this embodiment further includes an anti-spray rib 643. The anti-spray rib 643 is located in front of the longitudinal rib 641 and the transverse rib 642, and behind the exhaust port 60. The anti-spray rib 643 extends in the left-right direction along the exhaust port 60. The steam discharged from the flow path unit 25 hits the anti-spray rib 643 before being discharged to the exhaust port 60. This prevents high-temperature steam from being forcefully ejected to the outside.

[0044] Furthermore, as shown in Figures 6 and 7, in this embodiment, the vertical ribs 641 and horizontal ribs 642 are connected to the spill prevention rib 643. A recess 640 is also formed between the forwardmost horizontal rib 642 and the spill prevention rib 643. This increases the amount of water droplets that can be held in the recess 640. Therefore, the dripping of water droplets from the exhaust port 60 to the outside can be further suppressed.

[0045] <4. About warning marks> If the lid unit 20 is not properly attached to the outer casing 50, a gap will form between the upper end of the storage container 10 and the packing 24. In this case, steam inside the storage container 10 may be ejected to the outside through the gap. Also, when the electric kettle 1 is tilted, water droplets may drip from the gap.

[0046] Therefore, as shown in Figure 4, the lid unit 20 of this embodiment has a first warning mark 201 on its outer surface. The first warning mark 201 is formed on the outer circumferential surface of the lid case 21. The first warning mark 201 may be a mark formed with paint, a tape attached to the outer surface of the lid case 21, or a mark formed by irregularities on the outer surface of the lid case 21.

[0047] When the lid unit 20 is properly attached to the outer casing 50, the first warning mark 201 is covered by the outer casing 50. In this case, the first warning mark 201 is not exposed from the outer casing 50. However, the first warning mark 201 is formed on the upper end of the area of ​​the outer circumferential surface of the lid case 21 that should be covered by the outer casing 50. Therefore, when the lid unit 20 is not properly attached to the outer casing 50, the first warning mark 201 is exposed from the outer casing 50.

[0048] In this way, the user of the electric kettle 1 can recognize that the lid unit 20 is properly installed if the first warning mark 201 is hidden by the outer casing 50. Conversely, the user of the electric kettle 1 can recognize that the lid unit 20 is not properly installed if the first warning mark 201 is visible.

[0049] A pair of knobs 221 provided on the lid unit 20 are slidable in the left-right direction. Specifically, the pair of knobs 221 slide between a standard position and a release position that is closer to each other than the standard position. In the release position, the lid unit 20 is released from its fixation to the outer casing 50.

[0050] The pair of knobs 221 are biased toward the standard position by a spring (not shown). The user of the electric kettle 1 grasps the pair of knobs 221 and attaches or detaches the lid unit 20 with the knobs 221 in the released position. When the lid unit 20 is properly attached to the outer casing 50, the pair of knobs 221 return to the standard position. This locks the lid unit 20 in place relative to the outer casing 50.

[0051] The lid cover 22 has a guide surface 223 on the underside of the knob portion 221. The knob portion 221 slides along the guide surface 223. As shown in Figure 4, the lid cover 22 of this embodiment has a second warning mark 202 on the guide surface 223. The second warning mark 202 may be a mark formed by paint, tape attached to the guide surface 223, or a mark formed by indentations on the guide surface 223.

[0052] When the lid unit 20 is properly attached to the outer casing 50, the knob 221 is positioned in the standard position, and the second warning mark 202 is covered by the knob 221. In this case, the second warning mark 202 is not exposed to the outside. However, the second warning mark 202 is formed on the outermost part of the guide surface 223 in the area covered by the knob 221 in the standard position. Therefore, when the lid unit 20 is not properly attached to the outer casing 50 and the knob 221 is in the release position, the second warning mark 202 is exposed without being covered by the knob 221.

[0053] In this way, the user of the electric kettle 1 can recognize that the lid unit 20 is properly installed if the second warning mark 202 is hidden by the knob 221. Conversely, the user of the electric kettle 1 can recognize that the lid unit 20 is not properly installed if the second warning mark 202 is visible.

[0054] <5. Variation> Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment. Figures 8 to 11 are bottom views of the exhaust member 26 according to a modified example.

[0055] In the above embodiment, the longitudinal ribs 641 and transverse ribs 642 and the ejection prevention rib 643 were connected to each other. However, as shown in Figures 8 to 10, for example, the ejection prevention rib 643 may be separated from the other ribs.

[0056] Furthermore, the spacing between adjacent longitudinal ribs 641 in the left-right direction may differ from that of the above embodiment. Also, the spacing between adjacent transverse ribs 642 in the front-rear direction may differ from that of the steam embodiment. For example, as shown in Figures 8 and 9, the spacing between adjacent longitudinal ribs 641 may be smaller than that of the above embodiment. Also, as shown in Figure 9, the spacing between adjacent transverse ribs 642 may be smaller than that of the above embodiment.

[0057] Reducing the spacing between adjacent vertical ribs 641 and adjacent horizontal ribs 642 will increase the surface area of ​​the top surface 63. However, if these spacings are made too small, the amount of water droplets that can be held in the recesses 640 will decrease. Taking these factors into consideration, it is desirable to determine the spacing of the vertical ribs 641 and horizontal ribs 642 so as to maximize the water droplet holding capacity of the top surface 63. Furthermore, it is desirable that the shape of the recesses 640 be approximately square when viewed from below.

[0058] Either the vertical rib 641 or the horizontal rib 642 may be omitted. However, as shown in Figure 10, it is desirable that the projection 64 includes at least the horizontal rib 642. The horizontal rib 642 can obstruct the flow of water droplets from the top surface 63 toward the exhaust port 60. This further suppresses water droplets from dripping out of the exhaust port 60.

[0059] Furthermore, the projection 64 may not include the vertical ribs 641, horizontal ribs 642, and anti-spray ribs 643. For example, as shown in Figure 11, the projection 64 may include a plurality of columnar projections 644 that are isolated from each other. Even in this configuration, the surface area of ​​the top surface 63 increases compared to when there are no projections 64. This allows condensed water droplets to be held well on the top surface 63 by surface tension. Therefore, it is possible to suppress water droplets from dripping out of the exhaust port 60 to the outside compared to when there are no projections 64.

[0060] Furthermore, the above embodiment described a swan-spout type electric kettle 1. However, an electric kettle other than the swan-spout type may also be provided with a lid unit 20 similar to that of the above embodiment.

[0061] Furthermore, the electric water heater of the present invention may also be an electric kettle. In that case, the projection 64 described above is provided on the top surface of the space inside the exhaust port of the electric kettle. This prevents or reduces the dripping of condensed water droplets from the top surface to the outside through the exhaust port when the lid unit of the electric kettle is opened.

[0062] Furthermore, in the above embodiment, the liquid stored in the electric water heater was water. However, the liquid stored in the electric water heater may be other liquids such as tea.

[0063] Furthermore, the detailed shape of the electric water heater may differ from that shown in the figures of this application. In addition, elements appearing in the above embodiments and modifications may be appropriately selected and omitted to the extent that no inconsistencies arise. [Explanation of Symbols]

[0064] 1: Electric kettle (electric water heater) 10: Storage container 11: Bottom 12: Side wall 20: Lid unit 21: Lid case 22: Lid cover 23: Inner lid 24: Packing 25: Flow channel unit 26: Exhaust components 30: Heating part 40: Pour pipe 50: Exterior 60: Exhaust vent 61: Top panel 62: Cylindrical part 63: Top surface 64: Protrusion 201: First warning mark 202: Second warning mark 260: Exhaust space 640: recess 641: Vertical ribs 642: Transverse rib 643: Spray prevention rib 644:Columnar process A: Central axis

Claims

1. An electric water heater comprising a bottomed cylindrical storage container, a lid unit attached to the top of the storage container, and a heating unit for heating the liquid inside the storage container, The aforementioned lid unit is An exhaust port for discharging steam from the storage container, The top surface covers the upper part of the space inside the exhaust port, It has, The aforementioned top surface has protrusions, which is an electric water heater.

2. An electric water heater according to claim 1, The aforementioned projection includes transverse ribs extending in a direction intersecting the direction toward the exhaust port, in an electric water heater.

3. An electric water heater according to claim 1 or claim 2, The top surface of the electric water heater has a recess formed by the projection.

4. An electric water heater according to claim 3, The aforementioned projection includes multiple intersecting ribs in a grid pattern, and is an electric water heater.

5. An electric water heater according to claim 1 or claim 2, A dispensing tube extending forward and upward from the lower end of the side wall of the storage container. An electric water heater equipped with [a specific feature].

6. An electric water heater according to claim 5, The aforementioned exhaust vent is open towards the front of the electric water heater.

7. An electric water heater according to claim 1 or claim 2, Outer body covering the storage container and the lid unit Furthermore, The aforementioned lid unit has a warning mark, If the lid unit is properly attached to the exterior body, the warning mark will not be exposed. An electric water heater in which the warning mark is exposed if the lid unit is not properly attached to the outer casing.

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