JP2011110218A - Electric kettle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric kettle improving the convenience and safety. <P>SOLUTION: The electric kettle includes a body 1 and a power supply base 11 separated from the body 1. The body 1 has an inside container 3, and a handle 7 is disposed on the rear side of the body 1. A control device 8 for controlling a heating device 4 of the container 3 is disposed inside the handle 7. Electrode pins 9A and 9B connected to the heating device 4 as electrodes visible from a side in the rear of the body 1 are disposed under the handle 7 in a downward projecting manner, and a display portion 22 for displaying the start of heating of the container 3 is disposed at the upper part of the handle 7. Opposed electrodes 14A and 14B are disposed at the rear part of the power supply base 11. When the body 1 is mounted on the power supply base 11, the electrode pins 9A and 9B abut on the opposed electrodes 14A and 14B by the self-weight of the body 1, so that electricity is distributed from the power supply base 11 to the body 1. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an electric heater in which a power supply stand and a main body are separated.

  As this type of electric water heater, for example, Patent Document 1 discloses a main body and a power supply stand separated from the main body. Conventionally, an electrode is provided on the main body, while a counter electrode is provided on the power supply stand, and when the main body is placed on the power supply stand, the electrode contacts the counter electrode to supply power to the main body.

JP 2000-41855 A

  However, the conventional electric water heater has the following problems.

  First, in order to achieve contact between the electrode and the counter electrode, it is difficult to provide a contact structure for large current, it is difficult to contact the electrode and the counter electrode in the vertical direction, and the horizontal direction In the structure in which the electrodes are in contact with each other, there is a problem that the contactability of the electrodes is easily deteriorated, and the deterioration of the contact between the electrodes and the counter electrode cannot be ignored in terms of safety.

  Secondly, in the conventional electric water heater, it is necessary to look into the bottom of the main body when checking the abnormality of the electrode, so that the inspection of the electrode is neglected and the safety is lowered.

  Thirdly, since the conventional electric water heater is provided with the counter electrode in the approximate center of the power supply stand, foreign matter can easily enter the counter electrode, and the intrusion of foreign matter cannot be easily seen, There was a problem that foreign matter could not be removed.

  Fourthly, the conventional electric water heater is merely provided with a container in the main body, and sufficient practicality and safety have not been considered for the use of the container.

  In view of the above problems, an object of the present invention is to provide an electric water heater that can improve usability and safety.

  In the electric water heater according to claim 1 of the present invention, the electrode is provided in the vicinity of the hand gripping the handle when the main body is placed on the power supply stand by providing the electrode directly below the handle provided in a predetermined direction of the main body. Therefore, the electrode of the main body can be easily opposed to the counter electrode provided at the rear of the power supply base, and it is easy to use, and the electrode of the main body is securely in contact with the counter electrode of the power supply base. It is possible to prevent contact deterioration such as the counter electrode becoming half-contact. Further, the control device provided inside the handle causes the center of gravity when the container is empty to be closer to a predetermined direction of the main body, and even when the empty container is placed on the power supply base, the electrode of the main body is stably stabilized. In addition to being in contact with the counter electrode, the electrode does not float even if there is some vibration, and in this respect as well, contact deterioration between the electrode and the counter electrode can be prevented, and a highly safe electric water heater can be provided.

  In addition, since the electrode can be seen from the back of the main unit, it is easy to detect abnormalities such as dirt on the electrode and adhesion of water without having to look into the outer bottom surface of the main unit or turn the main unit upside-down by simply lifting the handle. In addition, the electrode is sufficiently inspected, and safety is improved. Furthermore, the heating state can be confirmed on the display unit, and the usability is also improved in this respect.

  In the electric water heater according to claim 2 of the present invention, the vicinity of the counter electrode is guarded by the wall, the counter electrode is not directly exposed, and dust and water from the side of the counter electrode are not easily applied to the counter electrode. Safety is improved.

  In the electric water heater according to claim 3 of the present invention, when the container is tilted, when the handle provided in a predetermined direction of the main body is held by hand and the liquid inside the container is poured from the upper part of the main body while tilting the main body, The center of gravity of the container is easy to pour, and even when supplying liquid to the container, the container is tilted and the faucet etc. is away from the handle, making it easier to supply liquid and improving the utility as a water heater. Is possible. Furthermore, since the electrode is located below the handle, the position where the liquid is poured from the container to the electrode and the liquid is supplied to the container is farthest away, so that it is difficult for the liquid to be applied to the electrode, and safety is further increased. improves.

  In the electric water heater according to claim 4 of the present invention, since the power supply base is provided with a counter contact facing the contact provided at the bottom of the main body, the contact and the counter contact are always at a specific point when the main body is placed on the power base. As a result, a stable contact can be ensured between the contact and the opposing contact. In addition, as long as the main body is not placed on the power supply stand, the opening is blocked by the shutter, so that intrusion of foreign matter can be reduced. Furthermore, in order to improve the electrical contact, for example, when a counter contact having a diameter of 1 mm or more is used, there is a possibility that a conductive member entering from the opening may come into contact with the counter contact. It becomes the structure where a member does not enter, and can improve the safety as an electric water heater.

  In the electric water heater according to claim 5 of the present invention, when the main body is to be placed on the power supply stand, the main body is guided by the rising wall, and the main body is positioned with respect to the power supply stand. Is prevented. In addition, when the main body is placed on the power supply stand by the inclined surface, the main body is guided to the center of the power supply stand along the inclined surface, improving the accuracy of alignment between the power supply base and the main body, and preventing the displacement. Becomes more effective.

  In the electric water heater according to claim 6 of the present invention, the strength of the base protruded in a predetermined direction is improved by connecting the electrode base to the rising wall, and the contact point of the opposing contact is improved by the deformation or rattling of the base. It is possible to prevent a problem that a shift occurs. In addition, when the main body is placed on the power supply stand using the rising wall as a guide, the position of the contact of the main body and the opposing contact of the power supply base can be stably matched.

  In the electric water heater according to claim 7 of the present invention, even when a fluid enters from the opening, the opposing contact is electrically isolated by the isolation wall portion, and the concern of short-circuiting by the fluid can be eliminated. Further, the combination of the contact plate and the isolation wall portion can sufficiently ensure the electrical insulation of the opposing contact.

  In the electric water heater according to the eighth aspect of the present invention, the fluid from the opening is guided to the flow path, so that water adheres to the member between the opposed contacts to form a closed circuit, thereby preventing the possibility of the tracking phenomenon.

  In the electric water heater according to the ninth aspect of the present invention, the power cord can be easily taken in and out of the power base by the winding means, and the length of the power cord can be easily adjusted. In addition, if there is a horizontal position restriction on the main body and the power base, the orientation of the power base and the installation location are often changed, and the length of the power cord can be adjusted when the orientation of the power base is changed. However, in this case, the power cord can be easily accommodated in the power supply base, so that the usability as an electric water heater can be improved. Further, by accommodating the electrode portion inside the power supply stand, the winding means can also be accommodated inside the power supply stand, and the height of the power supply stand can be suppressed. Therefore, it is possible to prevent the installation of the main body from becoming unstable when the height of the power supply stand increases and the main body is placed.

  In the electric water heater according to claim 10 of the present invention, the outer member of the power supply base can also be used by utilizing the winding means, and the structure of the power supply base can be simplified.

  In the electric water heater according to the eleventh aspect of the present invention, by providing the electrode portion in a predetermined direction inside the power supply base, the opposing contact point between the electrode portion of the winding means and the power supply base naturally faces each other. Electrical connection between members becomes easy. In addition, by separating the electrode part from the opposing contact for supplying power to the main body, it is possible to prevent liquid from adhering to the electrode part when liquid enters from the opening, and to improve safety become.

  According to the first aspect of the present invention, an electric water heater capable of enhancing the usability and safety can be provided.

  According to the second aspect of the present invention, it is possible to provide an electric water heater in which dust and water from the side of the counter electrode are hardly applied to the counter electrode, and safety is further improved.

  According to the third aspect of the present invention, it is possible to provide an electric water heater that has improved practicality with respect to liquid supply to the container and liquid injection from the container, and further improved safety with respect to the electrode.

  According to invention of Claim 4, the electric water heater which can improve safety | security can be provided.

  According to the fifth aspect of the present invention, it is possible to prevent the positional deviation between the power supply base and the main body in the horizontal direction and improve the accuracy of alignment between the power supply base and the main body.

  According to the sixth aspect of the present invention, it is possible to prevent a problem that the contact point of the opposing contact is displaced and to make the structure in which the positions of the contact of the main body and the opposing contact of the power supply base are stably matched.

  According to the seventh aspect of the present invention, it is possible to eliminate the fear of short-circuiting with a fluid, and it is possible to sufficiently ensure the electrical insulation of the opposing contact.

  According to the eighth aspect of the present invention, it is possible to further eliminate the concern that the opposing contact is short-circuited by the fluid, and to prevent the possibility of the tracking phenomenon.

  According to invention of Claim 9, since the length of a power cord can be adjusted easily and a power cord can be easily accommodated in a power supply stand, the usability as an electric water heater can be improved. Furthermore, it is possible to prevent the installation of the main body from becoming unstable when the main body is placed.

  According to invention of Claim 10, the structure of a power supply stand can be simplified.

  According to the eleventh aspect of the invention, the electrical connection between the electrode portion of the winding means and the opposing contact of the power supply base is facilitated, and liquid can be prevented from adhering to the electrode portion, thereby improving safety. It becomes possible.

1 is an overall cross-sectional view of an electric water heater showing a first embodiment of the present invention. FIG. 2 is an arrow view seen from the direction of arrow A in FIG. It is a side view of an electric water heater same as the above. It is a rear view of a main body same as the above. It is the perspective view seen from the upper part of a main body when a cover body is removed same as the above. It is a principal part expansion perspective view of a main body same as the above. It is a perspective view of a power supply stand same as the above. It is a top view of the power supply stand which shows 2nd Example of this invention. It is a bottom view of a power supply stand same as the above. It is a front view of a power supply stand same as the above. It is a fragmentary sectional view seen from the side of a power supply stand same as the above. FIG. 3 is an enlarged perspective view of a main part of the power supply stand with the shutter opened. FIG. 4 is an enlarged perspective view of a main part of the power supply stand in a state where the shutter is closed.

  Hereinafter, preferred embodiments of an electric water heater according to the present invention will be described with reference to the accompanying drawings.

  1 to 7 show a first embodiment of the present invention. In each of these drawings, reference numeral 1 denotes a main body, which is formed of an outer case 2 made of plastic and has a bottom inside. A stainless steel container 3 having a cylindrical shape is provided. A heating device 4 composed of an annular sheathed heater or the like is provided by brazing (brazing) or the like on the outer bottom surface of the container 3 that stores liquid water, and the container 3 is operated by operating the heating device 4. The water inside is heated and boiled. The heating amount of the heating device 4 is 900 to 1400 W with respect to an input voltage of AC 100V, a current larger than the input voltage of the AC 200V system can be passed, and the water heater can be heated in a short time.

  A lid 5 is detachably provided at the upper opening of the main body 1, while a liquid spout 6 formed in a bowl shape is provided at the upper front side of the main body 1. A handle 7 integrated with the exterior case 2 is provided on the rear side surface of the main body 1 opposite to the spout 6. A control device 8 for performing on / off control of the heating device 4 is built in the handle 7. Although not shown, the control device 8 is a board on which a microcomputer as a control processing unit, a relay that switches on / off of the heating device 4 in response to a control signal from the microcomputer, and various electronic components including the microcomputer and the relay are mounted. Etc.

  The handle 7 in the present embodiment extends in the vertical direction, and the upper end and the lower end thereof are connected to the rear side surface of the main body 1 and are formed in a gentle shape so that the main body 1 can be easily carried by hand. Two electrode pins 9 </ b> A and 9 </ b> B that supply electric power to the heating device 4 and the control device 8 are provided on the lower bottom portion of the handle 7 so as to protrude downward. The electrode pins 9A and 9B are provided in a recess 10 formed on the rear bottom surface of the main body 1, and the recess 10 protects the electrode pins 9A and 9B. The electrode pins 9A and 9B here may protrude vertically up to the lower end, or may be inclined halfway from the vertical. In addition to the live and neutral electrode pins 9A and 9B, a ground electrode pin (not shown) may be added to provide three electrode pins.

  Reference numeral 11 denotes a power supply stand that is provided separately from the main body 1 and on which the main body 1 is mounted as necessary. The power supply stand 11 has a cord reel 13 incorporated therein as a winding means for winding the power cord 12. If the power cord 12 is easily accommodated by the cord reel 13, the utility as an electric water heater is further improved. Two counter electrodes 14A and 14B are provided behind the upper surface of the power base 11 at positions facing the electrode pins 9A and 9B when the main body 1 is placed on the power base 11, and these counter electrodes 14A, 14B, 14B is always urged upward by an elastic member such as a contact spring (not shown). The counter electrodes 14 </ b> A and 14 </ b> B are electrically connected to the base end of the power cord 12 inside the power supply base 11. Contact points 15A and 15B made of a silver material having a thickness of 0.5 mm or more are joined to the tips of the electrode pins 9A and 9B. Similarly, the counter electrodes 14A and 14B are made of a silver material having a thickness of 0.5 mm or more. The opposing contacts 16A and 16B are joined to improve the electrical contact at high current, and when the main body 1 is placed on the power supply base 11, the electrode pins 9A and 9B are opposed to the counter electrodes by the weight of the main body 1. 14A and 14B are elastically contacted, and power is supplied from the power cord 12 of the power base 11 to each part of the main body 1 through the conductive electrode pins 9A and 9B and the counter electrodes 14A and 14B. ing.

  As described above, the electrode pins 9 </ b> A and 9 </ b> B are provided in the recess 10, but are disposed so as to be visible from the rear side surface of the main body 1. As a result, when the main body 1 is lifted by holding the handle 7, the state of the electrode pins 9A and 9B including the contacts 15A and 15B at the distal end can be easily visually confirmed.

  The upper surface of the power supply base 11 has such a shape that the electrode pins 9A and 9B are opposed to the counter electrodes 14A and 14B, and the main body 1 is naturally placed. Specifically, a rising wall 17 is formed on the outer periphery of the upper surface of the power supply base 11 so as to rise upward. An inclined surface 18 is formed from the rising wall 17 toward the inside of the upper surface of the power supply base 11. The inclined surface 18 is preferably formed along the outer bottom surface of the main body 1. In this way, when the main body 1 is to be placed on the power base 11, the outer periphery of the bottom of the main body 1 is guided by the rising wall 17, and the main body 1 is positioned with respect to the power base 11, so that the power base in the horizontal direction is placed. 11 and the main body 1 are prevented from being displaced. Further, when the main body 1 is placed on the power supply base 11 by the inclined surface 18, the outer bottom surface of the main body 1 is guided along the inclined surface 18 to the center of the power supply base 11, and the alignment of the power supply base 11 and the main body 1 is performed. Thus, the effect of preventing misregistration is more effective.

  In addition, an electrode table 19 having opposing electrodes 14A and 14B is provided on the rear of the upper surface of the power supply table 11 so as to correspond to the concave portion 10 of the main body 1 so as to protrude upward. Around the electrode base 19, an upright wall portion 20 is formed that is partially higher than the upper surface portion of the other power supply base 10 including the upright wall 17, and the vicinity of the counter electrodes 14 </ b> A and 14 </ b> B of the power supply base 11 is guarded. is doing.

  On the upper surface of the handle 7 in the direction opposite to the electrode pins 9A and 9B, a sheet-like pushable heating start switch 21 is provided as an operation unit. The reason why the surface of the heating start switch 21 is formed in a sheet shape flush with the upper surface of the handle 7 is to prevent intrusion into the handle 7 containing the control device 8 when water is applied. . Further, a display unit 22 such as an LED lamp for displaying when the heating device 4 starts heating the container 3 is provided on the upper surface of the handle 7, which is located near the heating start switch 21. Here, the display unit 22 receives a control signal from the control device 8 as a heating display LED, lights up or blinks while the container 3 is heated by the heating device 4, and the heating device 4 is not heating the container 3. However, the display form is not particularly limited.

  In the present embodiment, the side surface 3C of the container 3 is inclined forward with respect to the bottom surface 3A of the substantially horizontal container 3 and the opened top surface 3B. In accordance with the shape of the container 3, the outer case 2 of the main body 1 also has a shape inclined forward. As shown in FIG. 2, on the outer bottom surface of the container 3, in addition to the heating device 4, an empty boiling detection thermo 23 is provided as a safety device for detecting empty cooking, and the temperature of the container 3 greatly increases the boiling temperature of water. This is detected as an empty cooking state of the container 3 and the power supply to the heating device 4 is forcibly cut off. Furthermore, an abnormality detection limiter 24 as another safety device is provided on the outer bottom surface of the container 3.

  In order to use the electric water heater in the above configuration, water is poured from the upper opening of the main body 1 with the lid 5 opened while holding the main body 1 by grasping the handle 7 by hand. After the required amount of water is put into the container 3, the upper opening of the main body 1 is closed with the lid 5, and the handle 7 is placed on the upper side of the electrode table 19 with the electrode table 19 at the rear of the upper surface of the power supply table 11 as a target. The main body 1 is placed on the upper surface of the power base 11 so as to be positioned.

  At this time, the outer periphery of the bottom portion of the main body 1 is guided by the rising wall 17 to position the main body 1 with respect to the power supply base 11 in the horizontal direction, and the outer bottom surface of the main body 1 along the inclined surface 18 is the center of the power supply base 11. Therefore, the accuracy of alignment between the power supply base 11 and the main body 1 is further improved. Further, the protruding electrode base 19 enters the recess 10 of the main body 1, and the electrode pins 9 </ b> A and 9 </ b> B of the main body 1 naturally face the counter electrodes 14 </ b> A and 14 </ b> B of the power supply base 11. In a state where the main body 1 is placed on the upper surface of the power supply base 11, the contacts 15A and 15B at the tips of the electrode pins 9A and 9B are elastically opposed to the counter contacts 16A and 16B at the tips of the counter electrodes 14A and 14B. Contact between the electrode pins 9A and 9B through which a large current flows and the counter electrodes 14A and 14B are surely connected. As a result, power can be supplied from the cord reel 12 of the power supply stand 11 to each part of the main body 1.

  Thereafter, when the heating start switch 21 is pushed and operated while the handle 7 is held by hand, the heating device 4 is operated by a control signal from the control device 8, and the container 3 and thus the container 3 in the container 3 is operated with a predetermined heating amount. Heat the water. At the same time, the display unit 22 provided in the vicinity of the heating start switch 21 is turned on, and the user can easily recognize the start of heating.

  In relation to the above series of operations, in the electric water heater of this embodiment, since the main body 1 or the container 3 is inclined forward, the handle 1 provided at the rear of the main body 1 is held by hand, and the main body 1 is moved forward. When pouring hot water from a spout 6 formed on the front upper part of the main body 1 while tilting it, the center of gravity of the main body 1 moves to the front side and becomes easier to pour than a conventional upright cylindrical container. Similarly, when water is supplied to the container 3 by holding the handle 7 by hand, the tap faucet is separated from the handle 7 and the water supply is easy to supply because the container 3 is inclined forward. It becomes possible. Further, the structure in which the electrode pins 9A and 9B are provided below the handle 7 allows the position where the hot water is poured from the container 3 to the electrode pins 9A and 9B and the water is supplied to the container 3 to the maximum. Thus, it is difficult for the liquid to be applied to the electrode pins 9A and 9B, and the safety is further improved.

  Here, when the temperature in the container 3 rises, for example, the emptying detection thermo 23 which is turned off when it reaches a predetermined 130 ° C. or higher and is turned on when it becomes 80 ° C. or lower detects the emptying. In this case, when the temperature in the container 3 is 130 ° C. or higher, the emptying detection thermo 23 is turned on and the heating device 4 is mechanically turned on and off, so that the container 3 is heated in an empty state. There is nothing. Further, when the temperature of the container 3 further rises, for example, the abnormal temperature rise is detected by another abnormality detection limiter 24 that is turned off when the temperature becomes 260 ° C. or higher and turned on when the temperature becomes 240 ° C. or lower. In this case, when the temperature in the container 3 reaches 260 ° C. or higher, the abnormality detection limiter 24 is turned on, and the heating device 4 is mechanically turned on and off, so that the temperature of the container 3 is abnormally increased. Thus, it is possible to eliminate the adverse effect that the energization of the heating device 4 continues.

  By the way, when the container 3 is inclined forward to improve usability, when the rear side of the bottom surface 3A of the container 3 is lifted and formed, when the water in the container 3 decreases, the water remains in the front, There is a possibility that the empty burning detection thermo 23 and the abnormality detection limiter 24 which are safety devices for detecting empty cooking provided on the outer bottom surface of the container 3 may malfunction. However, the container 3 of the present embodiment has the bottom surface 3A positioned horizontally with the main body 1 placed on the power supply stand 11, so that the remaining water remains on the whole without being biased to a part of the bottom surface 3A, and the safety device Malfunction can be reduced. Moreover, it is relieved that the center of gravity of the main body 1 when water is stored in the container 3 is biased toward the front side of the main body 1, and the electrode pins 9A and 9B and the counter electrodes 14A and 14B provided on the rear side of the main body 1 are relaxed. It can prevent that contact property inhibits.

  Further, when the container 3 is tilted forward to improve usability, when the rear side of the bottom surface 3A of the container 3 is lifted and formed, the opened upper surface 3B of the container 3 is inclined downward as it goes forward. When the container 3 is filled with water, the height of the front part of the container 3 is lower than that of the rear part. In this case, there is a possibility that water in the container 3 flows out from the front, and the inner volume of the container 3 cannot be effectively used. However, the container 3 of the present embodiment mounts the main body 1 on the power supply base 11. In such a state, the upper surface 3B is positioned horizontally, so that such a problem can be avoided.

  In the conventional electric water heater, the contact structure of the main body electrode and the counter electrode of the power supply base is suitable for low current with AC 200V to 240V (200V system) as the input voltage, but in this embodiment, AC 100V Improvements are made to a highly safe contact structure suitable for the amount of heat effected with an input voltage of ˜110 V (100 V system). Further, the present invention provides an electric water heater that has a directionality when the main body 1 is placed on the power supply base 11 but does not deteriorate usability. Furthermore, the present invention provides an electric water heater that is very convenient to use when pouring hot water from the container 3 or when pouring water into the container 3.

  Specifically, the electric water heater in this embodiment is provided with a main body 1 and a power supply stand 11 separated from the main body 1, and the main body 1 includes a container 3 inside thereof, and heats the outer bottom surface of the container 3. A device 7 is provided, a handle 7 is provided behind the main body 1 in a predetermined direction, a control device 8 for controlling the heating device 4 of the container 3 is provided inside the handle 7, and the heating device 4 is provided below the handle 7. While being provided with electrode pins 9A and 9B that are connected and visible from the rear side surface of the main body 1 so as to protrude downward, a heating start switch as an operation unit that starts heating the container 3 above the handle 7 21 and a display unit 22 for displaying the heating state in the container 3, counter electrodes 14 </ b> A and 14 </ b> B are provided behind the power supply base 11, and when the main body 1 is placed on the power supply base 11, Pins 9A and 9B are paired Electrodes 14A, in contact with the 14B, the power supply from the power base 11 to the main body 1 has a configuration to be performed.

  In this case, by providing the electrode pins 9A and 9B directly below the handle 7 provided at the rear of the main body 1, when the main body 1 is placed on the power supply base 11, the electrode pins 9A, 9B is naturally positioned, and although there is a direction when the main body 1 is placed on the power supply base 11, the electrode pins 9A and 9B of the main body 1 are easily attached to the counter electrodes 14A and 14B provided at the rear of the power supply base 11. The electrode pins 9A and 9B of the main body 1 are surely brought into contact with the counter electrodes 14A and 14B of the power supply base 11, and the electrode pins 9A and 9B and the counter electrodes 14A and 14B are half-contacted. Contact deterioration such as becoming can be prevented. Further, the control device 8 provided inside the handle 7 causes the center of gravity when the container 3 is empty to be closer to the rear of the main body 1, and even when the empty container 3 is placed on the power supply base 11, 9B stably contacts the counter electrodes 14A and 14B of the power supply base, and the electrode pins 9A and 9B do not float even if there is some vibration. In this respect as well, the electrode pins 9A and 9B and the counter electrode 14A, The contact deterioration with 14B can be prevented, and a safe electric water heater can be provided.

  In addition, since the electrode pins 9A and 9B can be visually recognized from the rear side surface of the main body 1, it is not necessary to look into the outer bottom surface of the main body 1 or turn the main body 1 upside down by simply lifting the handle 7 by hand. , 9B can be easily checked for abnormalities such as dirt and water adhesion, and the electrode pins 9A, 9B are sufficiently inspected to improve safety. Furthermore, after checking the electrode pins 9A and 9B, the main body 1 can be placed on the power supply base 11, and the heating start switch 21 can be operated while holding the handle 7. Safety check, main body placement, heating The start can be performed by a series of operations, and the usability is extremely good. In addition, after the heating start switch 21 is operated, the heating state can be confirmed on the display unit 22, and the usability is also improved in this respect.

  Further, in the present embodiment, an electrode table 19 having counter electrodes 14A and 14B is provided behind the power supply table 11, and this electrode table 19 is arranged such that the electrode table 11 is higher than other portions provided on the upper surface of the power supply table 11. A standing wall portion 20 is formed as a wall portion.

  In this way, the vicinity of the counter electrode provided on the power supply base 11 is guarded by the standing wall 20 so that the counter electrodes 14A and 14B are surrounded by the standing wall 20 and are not directly exposed. It becomes difficult for dust and water from the side of 14B to be applied to the counter electrodes 14A and 14B, and safety can be improved.

  Further, in the present embodiment, the container 3 is inclined forward, for example, and the liquid inside the container 3 is introduced from the front upper part of the main body 1 while holding the handle 7 provided at the rear of the main body 1 and tilting the main body 1 forward. The center of gravity of the main body 1 is moved to the front side and is easy to pour, and when the liquid is supplied to the container 3, the faucet is separated from the handle 7 because the container 3 is inclined forward. It becomes easy to supply liquid, and it becomes possible to improve the practicality as a water heater. Further, since the electrode pins 9A and 9B are located below the handle 7, the positions where the liquid is poured from the container 3 to the electrode pins 9A and 9B and the liquid is supplied to the container 3 are separated as much as possible. Further, it is difficult to apply liquid to the electrode pins 9A and 9B, and the safety is further improved.

  In addition, in the present embodiment, by placing the bottom surface 3A of the bottomed cylindrical container 3 horizontally with the main body 1 placed on the power supply stand 11, the water in the container 3 is spread over the entire bottom surface 3A. It is possible to leave it, the malfunction of the safety device can be reduced, and the center of gravity of the main body 1 when water is accommodated in the container 3 is opposed to the front side of the main body 1 so as to face the electrode pins 9A and 9B. Good contact with the electrodes 14A and 14B can be maintained.

  In addition, by placing the upper surface 3B of the container 3 horizontally while the main body 1 is placed on the power base 11, the water in the container 3 can easily flow out from the front, and the internal volume of the container 3 is effectively increased. You can avoid the disadvantage of being unavailable.

  Next, regarding the electric water heater according to the second embodiment of the present invention, the configuration of the power supply stand 11 will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to the part which is common in 1st Example, and description of the same location is abbreviate | omitted as much as possible in order to avoid duplication.

  The main body 1 in this embodiment is exactly the same as that in the first embodiment, and a part of the configuration of the power supply base 11 is different. Specifically, in the power supply base 11, rod-like counter electrodes 14A and 14B provided with opposing contacts 16A and 16B at the top thereof are provided with two openings 31A and 31A formed on the upper surface of the electrode base 19, respectively. It faces 31B. The openings 31A and 31B here are formed in accordance with the number of the counter electrodes 14A and 14B, and thus the electrode pins 9A and 9B. Reference numeral 32 denotes an openable / closable shutter that covers the openings 31A and 31B. When the main body 1 is not placed on the power supply base 11, the shutter 32 is urged by an elastic member (not shown) to close the openings 31A and 31B. In the state where the main body 1 is placed on the power base 11, the weight of the main body 1 moves the shutter 32 against the bias of the elastic member to open the openings 31A and 31B, and the contact 15A is connected to the opposing contacts 16A and 16B. , 15B are in contact with each other, and power is supplied from the power supply base 11 to each part of the main body 1.

  Also in the power supply stand 11 of the present embodiment, a rising wall 17 is provided around the upper surface of the power supply stand 11, and from the rising wall 17 toward the inside of the power supply stand 11, preferably along the outer bottom surface of the main body 1. An inclined surface having a different shape is formed. A mounting surface 33 is formed at the center of the upper surface of the power supply base 11 and has a shape along the bottom of the main body 1 and develops in a substantially flat horizontal direction. The electrode base 19 as a pedestal is provided in a state protruding upward from the upper surface of the power supply base 11, but the electrode base 19 does not protrude independently from the upper surface of the power supply base 11, but the power supply base 11. It is provided so as to continue to the rising wall 17 formed on the outer periphery of the.

  Next, the peripheral structure of the counter electrode portion provided with the counter electrodes 14A and 14B at the tips of the counter contacts 16A and 16 will be described in more detail. The counter electrodes 14A and 14B having the counter contacts 16A and 16 have a wall-like shape on the outside. Contact plates 34A and 34B are provided, respectively, and an isolation wall 35 is provided between one counter electrode 14A and the contact plate 34A, and the other counter electrode 14B and the contact plate 34B to isolate these members from each other. Provided. The contact plates 34A and 34B are for the purpose of electrical insulation between the counter electrodes 14A and 14B including the counter contacts 16A and 16 and an external member, and the isolation wall 35 is an electrical insulation between the counter electrodes 14A and 14B. These are all made of an insulating material, and are preferably formed integrally with the power supply base 11.

  The isolation wall 35 may be provided independently, but as in the present embodiment, a plurality of isolation walls 35 are provided close to the counter electrodes 14A and 14B and the contact plates 34A and 34B, and a groove-like flow path 36 is provided therebetween. May be formed. The upper end of the flow path 36 communicates with the openings 31A and 31B. Even when a fluid such as water enters from the openings 31A and 31B, the fluid is guided from the upper surface of the shutter 32 to the upper end of the flow path 36. In addition, it is fed from the lower end of the flow path 36 to the bottom of the power supply stand 11 to prevent a short circuit between the opposed contacts 16A and 16. Further, by providing a plurality of isolation walls 35, the electrical insulation between the counter electrodes 14A and 14B including the counter contacts 16A and 16 can be enhanced.

  On the other hand, the cord reel 13 provided in the power supply base 11 has a flat disk shape, and two cord reel electrodes 41A and 41B are provided on the upper surface thereof so as to protrude upward. Further, these cord reel electrodes 41A and 41B are provided to be accommodated in the power supply base 11. Although not shown, the cord reel electrodes 41A and 41B and the counter electrodes 14A and 14B and thus the counter contacts 16A and 16B are electrically connected by a wire such as a lead wire. The cord reel electrodes 41A and 41B are located away from the counter electrodes 14A and 14B, and further, a shutter 32 is provided between them so as to be isolated from each other. Even when fluid enters from the openings 31A and 31B, The fluid is arranged so as not to reach the cord reel electrodes 41A and 41B. Inside the cord reel 13, the cord reel electrodes 41 </ b> A and 41 </ b> B are electrically connected to the base end of the power cord 12.

  A power plug 42 that can be plugged into a household outlet is connected to the tip of the power cord 12. The power cord 12 is wound around a winding portion in the cord reel 13 by a biasing force of a biasing means (not shown), and the power cord is held against the biasing force of the biasing means while holding the power plug 42 by hand. When the cord 12 is pulled out, the winding portion engages with the engaging portion inside the cord reel 13, and the power cord 12 is kept pulled out. If the engagement between the winding portion and the engaging portion is released by slightly pulling out the power cord 12 from there, the urging force of the urging means acts, and the power plug 42 is connected to the side surface of the cord reel 13. The power cord 12 is wound up to a position where it hits. Therefore, when there is a horizontal position restriction on the placement of the main body 1 with respect to the power supply base 11 as in the present embodiment, the direction and the installation location of the power supply base 11 change frequently. The power cord 12 can be easily accommodated when the power supply base 11 is moved, and the usability is improved.

  Further, in the cord reel 13 here, an outer bottom surface 13A located on the opposite side of the top surface on which the cord reel electrodes 41A and 41B are provided constitutes a part of the outer bottom surface of the power supply base 11 and is exposed. By using the outer bottom surface member of the power supply base 11 also as the outer member of the cord reel 13, the structure of the power supply base 11 can be simplified. In addition, since the cord reel 13 is disposed substantially at the center of the power supply base 11, the power supply base 11 does not tilt due to the weight of the cord reel 13, and the weight of the power supply base 11 as a whole increases. It is possible to improve the stability when it is installed.

  As described above, in this embodiment, the main body 1 and the power supply stand 11 separated from the main body 1 are provided, and the main body 1 is connected to the container 3 and the heating device 4 of the container 3 with electrode pins 9A. , 9B and contacts 15A, 15B provided on the electrode pins 9A, 9B, and the electrode pins 9A, 9B are provided on the bottom portion of the main body 1, that is, the outer bottom surface so that the contacts 15A, 15B face downward. In the water heater, the power supply table 11 includes opposed contacts 16A and 16B provided upward facing the openings 31A and 31B formed on the upper surface of the power supply table 11, and a shutter 32 for opening and closing the openings 31A and 31B. While the shutter 32 covers the openings 31A and 31B when not placed on the power supply base 11, the shutter 32 moves to open the openings 31A and 31B when the main body 1 is placed on the power supply base 11. Open, mating contacts 16A, the contact 15A to 16B, 15B abuts, has a configuration for supplying power from the power base 11 to the heating device 4.

  In this case, since the power supply base 11 is provided with the opposing contacts 16A and 16B facing the contacts 15A and 15B provided downward from the outer bottom surface of the main body 1, when the main body 1 is mounted on the power supply base 11, the power supply base 11 is always provided. The contacts 15A, 15B and the opposed contacts 16A, 16B come into contact with each other in a vertical direction, that is, in a gravitational direction, and a stable contact can be ensured between the contacts 15A, 15B and the opposed contacts 16A, 16B. In addition, as long as the main body 1 is not placed on the power supply stand 11, the openings 31A and 31B are closed by the shutter 32, so that intrusion of foreign matters such as dust, dirt and water can be reduced. Further, in order to improve the electrical contact, for example, when the opposing contacts 16A and 16B having a diameter of 1 mm or more are used, a conductive member such as a metal pin entering from the openings 31A and 31B is connected to the opposing contacts 16A and 16B. However, such a conductive member is prevented from entering by the shutter 32, and the safety as an electric water heater can be improved.

  Further, in this embodiment, a rising wall 17 is provided around the outer periphery of the upper surface, which is a predetermined portion of the power supply stand 11, and an inclined surface 18 is formed from the rising wall 17 toward the inside of the power supply stand 11.

  In this way, when the main body 1 is to be placed on the power supply base 11, the outer periphery of the bottom of the main body 1 is guided by the upright wall 17, and the main body 1 is positioned with respect to the power supply base 11. Misalignment with the main body 1 is prevented. Further, when the main body 1 is placed on the power supply base 11 by the inclined surface 18, the outer bottom surface of the main body 1 is guided along the inclined surface 18 to the center of the power supply base 11, and the alignment of the power supply base 11 and the main body 1 is performed. Thus, the effect of preventing misregistration is more effective.

  Further, in the present embodiment, the electrode base 19 that is a base of the opposed contacts 16A and 16B is protruded upward in a predetermined direction, and is connected to the rising wall 17 to provide the electrode base 19.

  In this way, the strength of the electrode table 19 protruding upward is improved by connecting the upper surface of the electrode table 19 to the upper surface of the rising wall 17, and the opposing contacts 16A and 16B are deformed by the deformation or rattling of the electrode table 19. It is possible to prevent a problem that the contact point is displaced. Further, when the main body 1 is placed on the power supply base 11 with the rising wall 17 as a guide, the positions of the contacts 15A and 15B of the main body 1 and the opposing contacts 16A and 16B of the power supply base 11 are stably matched. Can be.

  In the present embodiment, a plurality of contacts 15A, 15B and counter contacts 16A, 16B are provided, and contact plates 34A, 34B are provided at the respective counter contacts 16A, 16B, and the counter contacts 16A, contact plate 34A, One or a plurality of isolation walls 35 are provided as isolation wall portions that isolate the 16B and the contact plate 34B from each other.

  In this way, even if a fluid such as water enters from the openings 31A and 31B, the opposing contacts 16A and 16B are electrically isolated by the isolation wall 35, and the fear of short-circuiting by the fluid can be eliminated. Further, the combination of the contact plates 34A and 34B and the isolation wall 35 can sufficiently secure the electrical insulation of the opposed contacts 16A and 16B.

  In this embodiment, a plurality of isolation walls 35 are formed, and a groove-like flow path 36 is formed between the isolation walls 35.

  In this way, the plurality of isolation walls 35 can further eliminate the concern that the opposing contacts 16A and 16B are short-circuited by the fluid, and the fluid from the openings 31A and 31B is guided to the flow path 36, thereby allowing the space between the opposing contacts 16A and 16B. Water can adhere to the member to form a closed circuit, thereby preventing the possibility of a tracking phenomenon.

  In this embodiment, a power cord 12 for supplying power to the main body 1 and a cord reel 13 as a winding means for winding the power cord 12 are provided on the power base 11 and the cord reel 13 connected to the opposed contacts 16A and 16B is provided. Electrode portions, that is, cord reel electrodes 41 </ b> A and 41 </ b> B are housed inside the power supply base 11.

  Conventionally, the power supply stand in this type of electric water heater has no position restriction in the horizontal direction when the main body is placed on the power supply stand, and there is a need to change the position of the power supply stand according to the purpose of use and the situation of use. Since the power cord was small, the power cord was simply wrapped around the back of the power base in a state where it was concealed from the appearance, and its length adjustment was inconvenient. However, in this embodiment, the power cord 12 can be easily put in and out of the power base 11 by the cord reel 13, and the length of the power cord 12 can be easily adjusted. Further, in the present embodiment, since the contact points 15A and 15B of the main body 1 are brought into contact with the opposing contacts 16A and 16B on the rear side of the upper surface of the power supply base 11, there is a horizontal position restriction on the placement of the main body 1 and the power supply base 11. Yes, there are many cases where the orientation and installation location of the power supply base 11 are changed. When the orientation of the power supply base 11 is changed, the length of the power cord 12 is adjusted, or when the installation location of the power supply base 11 is changed. Although it is necessary to move the power supply stand 11, since the power cord 12 can be easily accommodated in the power supply stand 11, the usability as an electric water heater can be improved.

  In addition, by accommodating the cord reel electrodes 41A and 41B in the power supply base 11, the cord reel 13 can also be accommodated in the power supply base 11, and the height of the power supply base 11 can be suppressed. Therefore, it is possible to prevent the installation of the main body 1 from becoming unstable when the height of the power supply base 11 is increased and the main body 1 is placed.

  In the cord reel 13 of this embodiment, the outer bottom surface 13A on the opposite side to the cord reel electrodes 41A and 41B is exposed on the outer bottom surface of the power supply base 11, for example.

  If it carries out like this, the outline member of the power supply stand 11 can be combined using the code reel 13, and the structure of the power supply stand 11 can be simplified.

  Furthermore, the cord reel electrodes 41A and 41B of the present embodiment are provided, for example, upward in a predetermined direction so as to be separated from the opposed contacts 16A and 16B.

  Thus, by providing the cord reel electrodes 41A and 41B upward in the power supply base 11, the code reel electrodes 41A and 41B and the opposing contacts 16A and 16B of the power supply base 11 face each other, and both Electrical connection for connecting the lead wires between the members becomes easy. Further, when the cord reel electrodes 41A and 41B are separated from the opposed contacts 16A and 16B for supplying power to the main body 1 by a predetermined distance, when the liquid enters from the openings 31A and 31B, the cord reel electrodes 41A and 41B are separated. , 41B can be prevented from adhering to the liquid, and safety can be improved.

  In addition, this invention is not limited to the said Example, It can change in the range which does not deviate from the meaning of this invention.

1 Body 4 Heating device 7 Handle 8 Control device 9A, 9B Electrode pin (electrode)
11 Power supply stand 13 Cord reel (winding means)
14A, 14B Counter electrode 15A, 15B Contact 16A, 16B Counter contact 17 Rising wall 18 Inclined surface 19 Electrode base (pedestal)
20 Standing wall (wall)
22 Display part 31A, 31B Opening 34A, 34B Contact part 35 Isolation wall (isolation wall part)
36 Channel 41A, 41B Code reel electrode (electrode part)

Claims (11)

In an electric heater comprising a main body and a power supply stand separated from the main body,
The body includes a container and a handle in a predetermined direction.
The handle is provided with an electrode that is visible from the back of the main body connected to a heating device,
A display unit for displaying a heating state on the handle;
A counter electrode is provided behind the power supply stand,
The electric water heater is configured such that when the main body is placed on the power supply stand, the electrode comes into contact with the counter electrode and power is supplied from the power supply stand to the main body. An electrode table having the counter electrode is provided behind the power supply table,
The electric water heater according to claim 1, wherein the electrode base is formed with a wall portion for arranging the electrode base higher than other portions of the power supply base.   The electric water heater according to claim 1 or 2, wherein the container is inclined. The body has a contact provided on the electrode,
In an electric water heater provided with the electrode at the bottom of the main body,
The power supply stand includes a facing contact and a shutter that opens and closes an opening,
When the main body is not placed on the power base, the shutter covers the opening, while when the main body is placed on the power base, the shutter moves to open the opening, and the contact is at the opposite contact. The electric water heater according to any one of claims 1 to 3, wherein the electric water heater is in contact with the heating device to supply power to the heating device.   5. The apparatus according to claim 1, wherein a rising wall is provided at a predetermined portion of the power supply stand, and an inclined surface is formed from the rising wall toward the inside of the power supply stand. Electric water heater.   6. The electric water heater according to claim 5, wherein the pedestal of the opposing contact is provided in a predetermined direction so as to be connected to the rising wall.   The electric water heater according to any one of claims 4 to 6, wherein a contact plate is provided at the opposing contact, and an isolation wall portion for isolating the opposing contact and the contact plate is provided.   The electric water heater according to claim 7, wherein a flow path is formed between the isolation walls.   A power cord for supplying power and a winding means for winding the power cord are provided in the power supply stand, and an electrode portion of the winding means connected to the opposing contact is accommodated in the power supply stand. The electric water heater according to any one of claims 4 to 8, characterized in that   The electric water heater according to claim 9, wherein the winding means has an opposite side surface of the electrode portion exposed to the power supply stand.   The electric water heater according to claim 9 or 10, wherein the electrode portion is provided in a predetermined direction so as to be separated from the facing contact.

Images