JP2011239969A - Water heater and method of assembling temperature detector thereto - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water heater and a method of assembling a temperature detector thereto that uses as small a space as possible to fix the temperature detector to the container body of the water heater and can surely fix the temperature detector to the container body.SOLUTION: The water heater includes: the container body that opens upward and has a storage portion inside; a lid body for opening and closing the upward opening portion of the container body; a steam path provided inside the lid body to release the steam in the storage portion outside; the temperature detector 13 fixed to the container body to detect the temperature of the steam from the steam path; and a handle 2 fixed to the container body. One end side of a holding member 23 for holding the temperature detector 13 is fixed to the container body by screwing means 24, and the other end side of the holding member 23 is pushed against and fixed to the container body by means of a pushing member 2a provided on the handle 2 on the opposite side of the screwing means 24 across the temperature detector 13.

Description

  The present invention provides a container body having an opening at the top and having a storage portion therein, a lid body for opening and closing the upper opening portion of the container body, and an interior of the lid body for releasing the vapor of the storage portion to the outside. A water heater comprising a steam passage provided in the container, a temperature detector fixed to the container body for detecting the temperature of the steam from the steam passage, and a handle fixed to the container body, and a temperature thereof The present invention relates to a method for assembling a detection tool.

  As such a water heater, there are an electric kettle, an electric pot, and the like. Conventionally, the temperature detector for detecting the temperature of the steam is at least both ends of the holding member that holds the temperature detector, that is, temperature detection. At least both end sides of the holding member with the tool as a center are fixed to the container main body with a plurality of screwing tools such as bolts and screws (see, for example, Patent Documents 1 and 2).

Japanese Utility Model Publication No.8-1706 JP-A-9-271445

However, in the prior art described in Patent Documents 1 and 2, since at least both end sides of the holding member are fixed to the container body by a plurality of screwing tools with the temperature detection tool as the center, It was necessary to secure a space for the screwing tool at both ends.
Since the temperature detector is for detecting the temperature of the steam from the steam passage provided inside the lid body, it is naturally necessary to be fixed near the upper opening of the container body. In particular, in a water heater equipped with a handle, the upper part of the handle may be fixed near the upper opening of the container body, and there are not enough space around the temperature detector. There was a problem in requiring space for the screw fastener on the side.

  The present invention pays attention to such conventional problems, and its purpose is to minimize the space for fixing the temperature detector to the container body and to ensure that the temperature detector is secured to the container body. And a method for assembling the temperature detector.

In order to achieve the above object, a water heater according to the present invention comprises a container body having an opening at the top and having a storage part therein, a lid for opening and closing the upper opening of the container body, and steam in the storage part. A vapor passage provided inside the lid for discharge to the outside, a temperature detector fixed to the container body for detecting the temperature of the vapor from the vapor passage, and fixed to the container body A water heater equipped with a handle,
The characteristic configuration is such that one end side of the holding member that holds the temperature detection tool is fixed to the container body by a screwing tool, and the holding member is located on the opposite side of the screwing tool across the temperature detection tool. The other end side is pressed against the container body by a pressing member provided on the handle and fixed.

According to the above characteristic configuration, since one end side of the holding member that holds the temperature detection tool is fixed to the container body by the screwing tool, compared to the conventional technique in which both end sides of the temperature detection tool are fixed by the screwing tool. Thus, the space for the screwing tool for fixing the temperature detection tool to the container body can be limited to one end side of the temperature detection tool. Therefore, it becomes possible to fix the one end side of a holding member to a container main body with a single screwing tool, and in that case, the space for a screwing tool can be made small.
Then, the other end side of the holding member that holds the temperature detection tool is pressed against the container body by the pressing member provided on the handle on the side opposite to the screwing tool across the temperature detection tool, so that the temperature detection is performed. The holding member for holding the tool is fixed to the container body with one end side fixed to the container body by a screwing tool and the other end side is pressed against the container body by the pressing member, and as a result, only one end side of the holding member is fixed. The temperature detector can be reliably fixed to the container body despite the configuration that is fixed by the screwing tool.

  A further characteristic configuration of the water heater according to the present invention is that a positioning projection for determining a fixing position of the holding member with respect to the container body is provided so as to protrude from the container body.

According to the above characteristic configuration, since the positioning protrusion for determining the fixing position of the holding member protrudes from the container main body, the temperature detector held by the holding member has a predetermined Securely fixed in the fixed position.
Therefore, the relative positional relationship with the steam passage provided inside the lid body also becomes as desired, and the temperature of the steam from the steam passage can be reliably detected.

  A further characteristic configuration of the water heater according to the present invention is that the peripheral edge of the upper opening in the container body is configured as an inclined peripheral edge extending outward as it extends upward, and the steam passage is closed with the lid closed. A communicating opening for detection is formed in the inclined peripheral edge, and the temperature detector is configured to face the opening for detection, and the periphery of the opening for detection is in a state where the lid is closed. The seal which seals is in the point provided in the said cover body.

According to the above characteristic configuration, the peripheral edge of the upper opening in the container body is configured as an inclined peripheral edge that extends outward toward the upper side. Therefore, the lid is opened and closed with respect to the upper opening. When the part is closed, the inclined peripheral edge of the upper opening peripheral edge guides the lid, and the closing operation of the upper opening by the lid can be easily and reliably performed.
The detection opening that communicates with the steam passage when the lid is closed is formed at the inclined peripheral edge, and the periphery of the detection opening is sealed with the lid closed. Since the packing is provided on the lid, as long as the lid is closed, the packing provided on the lid is pressed against the inclined peripheral edge with an appropriate pressure. As a result, the periphery of the detection opening formed on the inclined peripheral edge is sealed with an appropriate pressure by packing, and the vapor from the steam passage is prevented from leaking out from the detection opening.

  A further characteristic configuration of the water heater according to the present invention is that the surface of the packing on the container body side includes an inclined sealing surface along the inclined peripheral edge with the lid closed.

  According to the above characteristic configuration, the surface on the container main body side of the packing that seals the periphery of the detection opening includes the inclined sealing surface along the inclined peripheral edge with the lid closed, so the detection opening The circumference of the part is sealed with almost uniform pressure over the entire circumference, and the periphery of the detection opening is sealed more reliably by packing, and the leakage of steam from the detection opening is more reliably prevented. Is done.

  The characteristic configuration of the method of assembling the temperature detector fixed to the water heater according to the present invention is to fix the one end side of the holding member to the container body with a screwing tool while holding the temperature detector, By fixing the handle to the container body, the other end side of the holding member is pressed against the container body by the pressing member provided on the handle and fixed.

According to the above characteristic configuration, one end side of the holding member is fixed to the container main body with the screwing tool while holding the temperature detection tool, and then the handle is fixed to the container main body. In other words, before the handle is fixed Since the holding member is fixed by the screwing tool, the fixing member fixing work by the screwing tool can be easily performed without being obstructed by the handle.
Then, by fixing the handle to the container body, the pressing member provided on the handle presses the other end side of the holding member against the container body, and the holding member is fixed to the container body. Assembling work can be done easily and reliably.

Perspective view showing appearance of electric kettle Perspective view of electric kettle with kettle body lifted from power plate Perspective view of electric kettle with lid open Longitudinal side view of electric kettle Longitudinal side view showing the fixed structure of the temperature detector with the lid closed Longitudinal side view showing the fixed structure of the temperature detector with the lid open Perspective view of main part showing assembly and fixing procedure of temperature detector Perspective view of main part showing assembly and fixing procedure of temperature detector Perspective view of main part showing assembly and fixing procedure of temperature detector Perspective view of main part showing assembly and fixing procedure of temperature detector Partially cutaway plan view of the main part showing the fixed state of the temperature detector

Embodiments of a water heater and a method of assembling a temperature detector fixed to the water heater according to the present invention will be described with reference to the drawings.
As shown in FIGS. 1 to 4, an electric kettle that is an example of a water heater includes a power supply plate P and a kettle body K that can be placed on the power supply plate P.
Inside the kettle body K, there is provided a reservoir 1 for storing hot water, and on the outer periphery of the kettle body K, there is provided a handle 2 for lifting the kettle body K. The upper side of the outer periphery of the kettle body K Is provided with a spout 3 for pouring hot water in the reservoir 1, and a handle 2 and a spout 3 are provided on the opposite sides of the center of the upper portion of the kettle body K.
The kettle main body K includes a substantially bottomed cylindrical container body 100 having the storage portion 1 therein and opened upward, and a generally disc-shaped lid 200 that opens and closes the upper opening of the container body 100. The handle 2 is fixed to the outer peripheral portion of the container main body 100.

The kettle body K is provided with an electric heater 4 that heats hot water in the storage unit 1, and a power receiving mechanism 5 that supplies electric power supplied from the outside to the electric heater 4 is provided in a state of being located at the center of the bottom surface. The operation panel 6 is provided in a state of being located at the lower part of the side peripheral surface. Although not shown, the operation panel 6 is provided with an operation switch for instructing start and stop of energization of the electric heater 4.
On the other hand, the power supply plate P is provided with a power feeding mechanism 7 that outputs power supplied through a power cord (not shown) to the outside in a state of being located at the center of the upper surface, and the kettle body K is mounted on the power supply plate P. In the placed power feeding posture, the power receiving mechanism 5 and the power feeding mechanism 7 are connected to each other in a conductive state, and power is supplied from the power feeding mechanism 7 to the electric heater 4 via the power receiving mechanism 5 to heat the hot water in the storage unit 1. Configured as follows. And the hot water in the storage part 1 is poured from the spout 3 by grasping the handle 2 and lifting and tilting the kettle main body K.

Does the lid body 200 of the kettle body K allow the outflow of hot water in the reservoir 1 from the pair of hook members 8 and the spout 3 that hold the lid body 200 in a closed position that closes the opening of the container body 100? There are provided a valve operating tool 9 for switching to no, a steam port 10 for releasing steam generated in the reservoir 1, and the like.
The container body 100 is configured by fitting the peripheral member 12 into the upper opening of the bottomed cylindrical outer member 11 and supporting the bottomed cylindrical storage portion 1 by hanging from the peripheral member 12. A hollow handle 2 is fixed across the peripheral member 12 and the outer member 11.
The upper peripheral edge of the peripheral member 12, in other words, the peripheral edge of the upper opening in the container main body 100 is configured as an inclined peripheral part 12a extending outward as it extends upward, as shown in FIGS. A temperature detector 13 that detects the temperature of the steam guided from the storage part 1 through the steam passages 20 and 21 (details will be described later), while the upper end of the handle 2 is fixed in the vicinity of the inclined peripheral part 12a. It is fixed to the inclined peripheral edge 12a.
And although illustration is abbreviate | omitted, a control part is provided in the space between the bottom part of the outer shell member 11, and the bottom part of the storage part 1, The control part is the information from the operation panel 6, and the detection information of the temperature detector 13 The electric heater 4 is energized and controlled based on the above.

The lid body 200 generally includes a lid body member 14, a lid cover 15 above the lid body member 14, an inner lid plate 16 below the lid body member 14, and a sealing material for the outer peripheral portion of the inner lid plate 16. 17 is integrally assembled.
The peripheral member 12 of the container body 100 is formed with a groove-like portion 12m that forms the lower part of the spout 3 (see FIG. 3), and the upper part of the spout 3 is placed on the lid main body member 14 of the lid 200. The collar part 14e to comprise is provided.
When the lid 200 is attached to the upper opening of the container main body 100 in a relative positional relationship when the lid is attached so that the flange 14e of the lid main body member 14 covers the upper portion of the groove-like portion 12m of the peripheral member 12. The cylindrical spout 3 is formed by the groove-shaped portion 12 m of the peripheral member 12 and the flange portion 14 e of the lid main body member 14.

As shown in FIG. 4, a plurality of holes 16 h are formed in the inner lid plate 16 constituting the lid body 200, and an inner lid plate is provided between the lid body member 14 and the inner lid plate 16 in the lid body 200. A container communication space 18 that communicates with the storage portion 1 of the container body 100 through a plurality of holes 16 h formed in 16 is formed.
In the lid main body member 14, as shown by the broken line arrow in the spout 3 in FIG. 4, the base end faces the container communication space 18 and extends into the spout 3, and the base end However, a vapor discharge steam passage 20 is formed so as to face the container communication space 18 and whose tip extends to the upper surface portion of the lid body 200, and the tip opening of the steam discharge steam passage 20 functions as the steam port 10.
The lid main body member 14 is formed with a temperature detection steam passage 21 that branches off from the steam passage 20 for steam discharge, as shown in FIG. As described above, the temperature detection steam passage 21 has a tip formed on the inclined peripheral edge portion 12a in the side peripheral portion of the lid main body member 14 with the lid body 200 mounted on the container main body 100. The temperature detector 13 is provided so as to communicate with the opening 12b for use and to face the opening 12b for detection.

The fixing structure and the assembling method of the temperature detector 13 will be described in detail. As shown in FIGS. 5, 6, and 11, the fixing state is shown, and FIGS. Is fitted in a circular hole 23a for holding the temperature detector formed in the center of the holding member 23 with the bottomed cylindrical flanged cap 22 covered, and is held by the holding member 23. On one end side of the holding member 23, a fixing hole 23b is formed. That is, as shown in FIGS. 8 to 11, the holding member 23 includes a circular plate portion 23c having a circular hole 23a, a substantially rectangular plate portion 23d having a fixing hole 23b, and both plate portions 23c and 23d. And a connecting plate portion 23e for connecting the two, and the temperature detector 13 is fitted and held in the circular hole 23a.
On the other hand, on the outer diameter side of the peripheral member 12 of the container body 100, a cylindrical female screw member 12c having a female screw portion is integrally projected, and a plurality of positionings for determining the fixing position of the holding member 23 are provided. A projection 12d is integrally provided.

Then, a bolt (or screw) 24 as a single screwing tool is inserted into the fixing hole 23b formed on one end side of the holding member 23 and screwed into the female screw portion of the female screw member 12c. One end side of the holding member 23 is fixed to the inclined peripheral portion 12 a of the peripheral member 12 in a state where the outer packing 25 is sandwiched between the inclined peripheral portion 12 a of the peripheral member 12 of 100 and the flange of the cap 22.
The other end of the holding member 23, that is, the end opposite to the bolt 24 across the temperature detector 13, is an L-shaped pressing member 2 a (see FIG. 10) integrally provided on the upper portion of the handle 2. 11), the temperature detector 13 is fixed in a state where it faces the detection opening 12b via the holding member 23.

When the temperature detector 13 is assembled and fixed, as shown in FIG. 7, after the outer packing 25 is externally fitted to the cap 22, the cap 22 having the outer packing 25 is externally fitted to the inclined peripheral portion 12 a of the peripheral member 12. The cap 22 is inserted into the detection opening 12b from the outside of the outer packing 25 after the outer packing 25 is arranged around the detection opening 12b. Then, as shown in FIG. 8, after the temperature detector 13 is inserted into the cap 22, the circular hole 23a of the holding member 23 is fitted over the temperature detector 13, or the circular hole 23a of the holding member 23 is inserted. After inserting the temperature detector 13, the temperature detector 13 is inserted into the cap 22. In any case, the temperature detector 13 is held by the holding member 23, and the fixing position of the holding member 23 with respect to the inclined peripheral edge portion 12a is determined by the plurality of positioning projections 12d.
Thereafter, as shown in FIG. 9, a bolt 24 is inserted into the fixing hole 23b of the holding member 23 and screwed into the female screw portion of the female screw member 12c. During the screwing operation, the holding member 23 is moved by the positioning projection 12d. The temperature detector 13 is securely fixed at a predetermined position. Finally, as shown in FIG. 10, the handle 2 is fixed to the container body 100, and the pressing member 2 a provided on the handle 2 is attached to the other end side of the holding member 23 by the fixing of the handle 2. The container body 100 is pressed and fixed.

The lid body member 14 of the lid body 200 is provided with a lid side packing 26 that seals the peripheral portion of the detection opening 12b formed in the inclined peripheral edge portion 12a, as shown in FIGS. In a state where the body 200 is closed, the peripheral portion of the detection opening 12b is configured to be sealed from the inside by the lid side packing 26 in addition to the outer side packing 25 described above.
The lid side packing 26 includes a main body portion 26 a fixed to the lid main body member 14 of the lid body 200 and a hollow packing portion 26 b that is in close contact with the peripheral portion of the detection opening 12 b. The surface of the packing portion 26b on the container main body 100 side includes an inclined sealing surface 26c along the inclined peripheral edge portion 12a of the peripheral member 12 with the lid 200 closed.
A through hole 26d is formed in the main body portion 26a and the packing portion 26b of the lid side packing 26. When the lid body 200 is closed, the through hole 26d is inclined with the steam passage 21 for temperature detection. The detection opening portion 12b of the peripheral edge portion 12a is communicated with each other so that the vapor from the storage portion 1 is guided to the temperature detection portion of the temperature detection tool 13 through the vapor passages 20 and 21 for vapor discharge and temperature detection. It is configured.
Accordingly, when the water in the storage unit 1 boils by heating by the electric heater 4 and steam is generated, the steam is discharged from the steam port 10 through the steam discharge steam passage 20 and the temperature detecting steam. The temperature is detected by the temperature detector 13 by being guided from the passage 21 through the through hole 26d of the lid side packing 26 to the detection opening 12b. When the temperature detector 13 detects the temperature of the steam, the control unit cuts off the power supply to the electric heater 4.

In addition, although detailed explanation is omitted, as shown in FIG. 4, when the electric kettle falls, the lid 200 moves so as to close the steam discharge steam passage 20, and the hot water in the storage unit 1. Are provided with two weight bodies 27 that prevent leakage from the steam port 10 and the like.
In addition, a valve mechanism V that can be switched between an open state that allows outflow of hot water in the reservoir 1 from the spout 3 and a closed state that prevents it from flowing through the spout 3 by the vertical movement of the valve body 28 is provided, and the valve operating tool 9 is pushed down When the valve mechanism V is opened via an interlocking mechanism (not shown) and the depression is released, the valve operating tool 9 is elastically restored and the valve mechanism V is closed.
The lid body 200 having such a configuration is placed on the upper opening of the container body 100 and pushed downward, so that the pair of hook members 8 are recessed portions 29 provided in the container body 100 (see FIG. 3). The lid 200 is held in the container body 100 in the closed position, and the pair of hook members 8 are gripped from both sides so as to be close to each other. It is configured so that it can be detached from the container body 100 by lifting the lid 200 as it is.

[Another embodiment]
(A) In the above-described embodiment, an example in which the positioning protrusion 12d for projecting the fixing position of the holding member 23 is provided on the peripheral member 12 of the container main body 100 is shown. However, the positioning protrusion 12d is not necessarily required. The positioning projection 12d may be omitted, and when the positioning projection 12d is provided, the number of the positioning projections 12d can be arbitrarily set.

(B) In the said embodiment, although the example which comprised the periphery of the upper opening part in the container main body 100 to the inclined peripheral part 12a was shown, without making the peripheral part of the upper opening part into the inclined peripheral part 12a, for example in a perpendicular direction It can also be carried out with the peripheral edge along, and the lid-side packing 26 does not necessarily need to be provided with the inclined sealing surface 26c.
And this invention is applicable not only to the electric kettle shown in previous embodiment but in an electric pot, for example.

(C) In the above embodiment, the pressing member 2a is an L-shaped member, but the other end of the holding member 23, that is, the opposite side of the bolt 24 across the temperature detector 13 is shown. What is necessary is just to have a function which presses an edge part to the container main body 100 side, Therefore, various modification | change is possible about the shape and structure of the pressing member 2a. Moreover, although the example which comprised the temperature detector 13 and the holding member 23 separately was shown, the temperature detector 13 and the holding member 23 can also be comprised integrally and implemented.
Further, the example in which one end side of the holding member 23 is fixed to the container main body 100 with a single bolt 24 is shown, but the one end side of the holding member 23 is fixed to the container main body 100 with a plurality of bolts 24. You can also.

  As explained above, the space for fixing the temperature detector to the container body is made as small as possible, and the water heater that can securely fix the temperature detector to the container body and the assembly of the temperature detector A method can be provided.

DESCRIPTION OF SYMBOLS 1 Storage part 2 Handle 2a Pushing member 12a Inclined peripheral edge part 12b Detection opening part 12d Positioning protrusion 13 Temperature detector 20, 21 Steam passage 23 Holding member 24 Bolt (screwing tool)
26 Lid packing (packing)
26c Inclined sealing surface 100 Container body 200 Lid

Claims (5)

A container body having an opening at the top and having a storage portion therein, a lid body for opening and closing the upper opening portion of the container body, and steam provided inside the lid body for releasing the steam of the storage portion to the outside A water heater comprising a passage, a temperature detector fixed to the container body for detecting the temperature of the steam from the steam passage, and a handle fixed to the container body,
One end side of the holding member that holds the temperature detection tool is fixed to the container body by a screwing tool, and the other end side of the holding member is on the opposite side of the screwing tool across the temperature detection tool, A water heater that is pressed against and fixed to the container body by a pressing member provided on the handle.   The water heater according to claim 1, wherein a positioning projection for determining a fixing position of the holding member with respect to the container body is provided so as to protrude from the container body.   The peripheral edge of the upper opening in the container body is configured as an inclined peripheral edge that extends outward as it extends upward, and the detection opening that communicates with the vapor passage with the lid closed is provided in the inclined peripheral edge. The lid is provided with a packing that is formed so that the temperature detection tool faces the detection opening, and seals the periphery of the detection opening in a state where the lid is closed. The water heater according to claim 1 or 2.   The water heater according to claim 3, wherein a surface of the packing on the container main body side includes an inclined sealing surface along the inclined peripheral edge portion in a state where the lid is closed. A method for assembling a temperature detector fixed to the water heater according to any one of claims 1 to 4,
The pressing member provided on the handle by fixing one end of the holding member to the container main body with a screwing tool while holding the temperature detection tool, and then fixing the handle to the container main body. The assembly method of the temperature detection tool which presses and fixes the other end side of the said holding member to the said container main body by.

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