JP3443768B2 - Sake ware - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a sake liquor,
In particular, it relates to improvement of a ceramic heater used for a sake cup .

[0002]

2. Description of the Related Art Some ceramic heaters have a heating element sandwiched between insulating ceramics such as alumina and zirconia. According to this, since the heating element is embedded in the ceramic, there is no electric leakage even when it reaches the object to be heated, and therefore, for example, it is possible to directly heat the liquid by touching it.

In such a ceramic heater, a resistor paste serving as a heating element is printed and applied on a green sheet (for example, an alumina green sheet) before firing, and another green sheet is attached to the resistor paste to seal the paste. In addition, the high temperature firing of the ceramic and the heating element is performed at the same time. The firing temperature at that time is about 1600 ° C.

Further, when the resistor paste is applied by printing, it is printed in a diagrammatic pattern (for example, in a zigzag or spiral pattern), and power is supplied by using both ends of the pattern as terminals. I have to. As an example of such a laminated ceramic heater, there is a circular plate-shaped ceramic heater 100 as shown in FIG. 5. The heater 100 has a diameter of 40 mm and is 100V-250.
W, and the diagram pattern using the tungsten-based paste has a narrow print width of about 0.5 mm. The ceramic heater 100 is used for directly heating liquor using a liquor, and is attached to a heater having a liquor flow passage formed flat. That is, using the mounting hole 101 provided in the center of the circular heater, as shown in FIG. 6, it is screwed to the inner wall 111 of the heater 110 via the ring packing 112. By attaching to the inner wall 111, the heater 100 directly touches sake and heats it directly. Several such ceramic heaters 100 are attached to one heater 110 to obtain a predetermined amount of heat generation, Some effect is obtained.

[0005]

However, it is troublesome that a predetermined amount of heat generation cannot be obtained unless some of them are mounted, and the cost is burdened by using some small ceramic heaters. Moreover, to attach the green sheet,
The resulting ceramic heater has a large thickness, and if one ceramic heater were to obtain a predetermined amount of heat generation, the heat dissipation surface had to be enlarged, and a large ceramic heater with a large thickness and area was provided. However, there are difficulties in manufacturing and mounting.

Further, it is unavoidable that the heat capacity increases due to the thickness due to the bonding, but for this reason, in the case where it is necessary to turn on / off the heater relatively frequently, the rise in temperature accompanying power feeding and the disconnection are accompanied. Even when it is required that the natural cooling is smooth, it is not possible to cope with this, there is a disadvantage that the rising is slow and the residual heat remains long after cutting.

In the method of screwing through the ring packing 112 as shown in FIG. 5, bending stress is applied to the ceramic heater 100 as shown in FIG. 7, and the heat shock value of the ceramic heater is lowered. There was a problem. In particular, the larger the ceramic heater, the weaker it becomes against bending stress, and it is difficult to increase the size of the ceramic heater in this respect as well.

Further, conventionally, since the resistor paste is sandwiched, the heating element is fired at the same time as the ceramic,
Therefore, the resistor paste is limited to those that can withstand the firing temperature of ceramics, and it has become expensive. This is because if the resistance paste has a low firing temperature, the firing temperature of the ceramic is too high and the ceramic is burned.

Further, since two green sheets are bonded and fired, a slight difference in composition between the two green sheets causes a warp during firing, and if an object having a warp is forcibly pressed, a fragile ceramic will bend. Damage may result from stress. If there is a warp, the adhesion to the mounting surface will deteriorate when it is mounted on a flat surface, and such poor adhesion causes heating unevenness and heating unevenness causes temperature unevenness of the heater itself. It will cause cracking. There is also a method of removing the warp by polishing the surface of the ceramic heater, but this is not preferable because it increases the cost.

Further, since the entire heating element has a line drawing pattern, as shown in FIG. 8, there is a portion with / without the pattern 103 on the bonding surface of the green sheet, so that the heat radiation surface of the heater has uneven heating. Is caused, which is a problem for a delicate object to be heated which causes such uneven heating.

Therefore, it was originally desired to provide heating elements uniformly so as to prevent uneven heating. However, when sticking green sheets together, the conventional line drawing pattern is convenient in that it can function as a bonding surface between lines when it is a line drawing pattern. In the case of a pattern, the adhesive surface between the green sheets was lost and the green sheets could not be adhered to each other, so that the solid pattern could not be adopted.

Further, in the case of the line pattern, since the width of the pattern is narrow and the printing thickness is thin, if dust is attached in the printing process, the portion is dented as shown in FIG. 9 and the printing thickness is slightly thin. Furthermore, the pattern may be missing during printing. If there is such a defective pattern that is dented or chipped, the defective part becomes a part where the resistance value is partly high, and only that part has an abnormally high temperature. Since many materials are used, once the abnormally high temperature starts, the temperature rises at once, causing a problem such as melting the ceramic to open a hole, and such an accident example is actually occurring.

Further, in the ceramic heater produced by firing, it is inevitable that the power consumption of each ceramic heater varies to some extent.

In view of the above problems, an object of the present invention is a sake liquor using a ceramic heater which can be made thin and large in size, and has a rising rate of temperature rising and a cooling rate. The heating speed is fast, there is no uneven heating temperature, and a resistor paste with a relatively low firing temperature can be selected as the heating element material, the temperature of the liquid to be heated can be easily detected, it can be easily attached to the desired location, and heat shock can be applied. A ceramic heater that can be installed without affecting the strength of the
The purpose is to provide a drinker .

[0015]

Means for Solving the Problems and Effects of the Invention In order to solve the above problems, in the invention according to claim 1 of the present application ,
One side of a thin ceramic thin plate that does not cause a large difference in temperature, a sake heater using a ceramic heater provided with a heating element applied and baked in a substantially solid pattern as a heater, wherein the ceramic heater is , The heat dissipation surface on the side of the ceramic thin plate where the heating element is not provided.
To provided a directly touched while flowed liquor to the heater such that pressurized heat, the heater has an outlet for discharging the inlet and the can with salmon capturing sake, the The main point was to boil the sake while pumping the sake inside the heater. If the heating element remains exposed and is unsatisfactory, a glass coat or the like may be applied on the heating element to insulate the surface.

In manufacturing, the ceramic thin plate is first obtained by firing or the like, and then the heating element may be applied and baked. Since the heating elements can be fired separately in this manner, the heating element is the heating element. A low baking temperature that allows baking can be used, and a heat resistant material lower than the baking temperature of the ceramic can be used.

Further, according to this ceramic heater, since the ceramic is a thin plate, the rate of temperature rise and
Since the rate of temperature decrease is faster, there is a delay in heating at the start-up,
It is not necessary to heat with unnecessary residual heat after cutting. Further, since it becomes a solid pattern heating element, there is no unevenness in heat generation. Further, if a heater having a large heat generation amount is required, a ceramic thin plate having an area corresponding to the heater may be used, and even if the ceramic thin plate is enlarged, the weight can be kept light.

Even if a defect such as a dent or a chip of the pattern occurs, the current path is considerably wide because it is a solid pattern, and the defective portion of the pattern simply does not generate heat as compared with the conventional line drawing current path. A stable heater can be obtained without abnormal heat generation or melting of the ceramic due to this. In addition, the ceramic thin plate
Heats sake directly on the radiating surface, which is the side without the heating element
Therefore, the heat radiation surface does not reach a temperature higher than the boiling point of sake.
Also, because the ceramic heater is a thin plate,
With this thinness, there is no big difference in the temperature of the front and back, heating the water
In the example, the heating surface side is relatively 120 to 130 ° C.
Can maintain a low temperature and suppress the temperature rise of the heating element
To be done. Of course, the temperature difference between the heat dissipation surface and the heat generation surface is small.
Needless to say, is highly efficient. In other words
If the heating element goes through a thin ceramic plate,
It is cooled to a high temperature, and the temperature rise is suppressed.
Even a low heating element will not burn out, so
It can also be used with low heating element materials. In addition, the heating element
Sometimes coated for protection, but also melted at that time
Material with low temperature can be used, glass coat or
Can be epoxy resin, silicone resin, etc.

According to the second aspect of the invention, the ceramic thin plate is composed of a single layer. Here, a single layer means, for example, 1 if a ceramic thin plate is obtained by firing a green sheet.
It means that the ceramic thin plate is not fired from one green sheet and the two sheets are stuck together and fired. Alternatively, it refers to a material obtained by pressing powder that is a ceramic material. This eliminates warpage caused by laminating sheets having different compositions.

According to the third aspect of the invention, the terminal portion of the heating element is formed in a pair of long patterns facing each other, and the heating element is provided in the planar portion sandwiched between the terminal portions. As a result, the current flows more evenly through the heating element, the unevenness of heat generation is further eliminated, and uniform heat dissipation is possible. The long length referred to here means that when a current is applied to a substantially solid pattern between terminals,
Any shape may be used as long as the current density does not have density, and the shape is not necessarily linear.

[0021]

According to the fourth aspect of the invention, a temperature sensor is provided on the surface of the heating element. That is, since the present application uses the ceramic thin plate, the temperature of the heat generating element, which is the back surface of the heat radiating surface, does not significantly deviate from the temperature of the heat radiating surface, and therefore the heat generating element generates heat close to the heating temperature of the object to be heated. It's good. That is, in the case of a conventional ceramic heater having a thickness, there is a temperature difference between the heating element and the heat radiation surface, so there is a problem that the heating element must be heated to a high temperature in consideration of this difference. According to the present invention, since the ceramic plate is thin, it is possible to lower the temperature of the heating element by the amount that does not require such a deviation, and as a result, it is possible to provide a temperature sensor on the surface of the heating element in terms of temperature. It has become possible. In addition, since the temperature difference between the front and back is small, the effect that the heat radiator temperature based on the measured heat radiator temperature can be accurately estimated by analogy.

[0023] heating the liquor in the cell La Mick heater, also will be a ceramic heater in the reverse is cooled in sake,
The upper limit of the heat radiation surface temperature is suppressed to about the boiling point temperature. Also,
Due to the thinness of the ceramic plate, the temperature of the heat generating element, which is the back surface of the heat radiation surface, does not deviate significantly from the temperature of the heat radiation surface, and remains at a low heat generation temperature that is slightly higher than the temperature of sake . Therefore, if sake is heated with a conventional ceramic heater, a temperature sensor for knowing the temperature of the sake is provided at a position distant from the heater, and another temperature sensor is placed on the back surface of the heat-generating part to detect empty heating. Although it took time to do it, such trouble is not necessary. That is, by providing the temperature sensor directly on the heating element, it is possible to detect the temperature for preventing the empty heating and the temperature of the sake .

According to the fifth aspect of the invention, it is assumed that the peripheral edge of the ceramic heater is attached to the frame body, and the invention is based on the premise that the peripheral portion of the ceramic heater is used as an attachment allowance. Therefore, the present invention is a ceramic heater in which a ceramic thin plate is formed in a shape corresponding to a desired mounting frame, and a blank portion not provided with a heating element is provided around the ceramic thin plate. The gist of the invention is to be attached to the attachment frame by gripping via packing.
Note that the frame is not limited to a frame-shaped object, and may be any plate-shaped, block-shaped, or other attachment target, and in short, refers to all attachment targets when the periphery of the ceramic heater is attached as an attachment allowance.

This is an invention for further increasing the size of the ceramic heater while using a ceramic thin plate. That is, since the periphery of the ceramic heater is gripped and attached, it is not necessary to apply the bending stress as described with the conventional circular heater as an example. In this respect, there is no hindrance to the attachment even if the size is increased. Further, since the ceramic heater of the present invention does not bond the green sheets as in the conventional case, it is excellent in that the occurrence of the warp caused by the bonding is largely suppressed, but when viewed strictly, it is slightly warped. Therefore, when the front and back sides around the ceramic heater are sandwiched, there is a problem that a slight remaining warp is sandwiched between the front and back sides to cause cracking, or a gap is formed and watertightness cannot be maintained.

In this respect, according to the invention of claim 5 , since a slight warp of the blank portion is absorbed by the packing, the problem of cracking can be avoided and the mounting can be performed. In other words, not only the heat dissipation surface side that requires watertightness but also the front and back surfaces of the margin (and therefore the heat generation surface side that does not require watertightness) are gripped via packing, so gripping is performed while absorbing front and back warpage. Such a problem can be avoided even with the ceramic heater of the present invention in which a ceramic material that is originally fragile is made into a thin plate and is more easily fragile.
In addition, gripping through the packing is done on the margin,
The packing does not touch the heating element. for that reason
If the liquor is heated, the watertightness can be increased, and if the packing is used to hold the heating element, a small amount of liquor will soak into the gap between the ceramic heater and the packing. Although there is a risk of electric leakage through the gap, the invention according to claim 1 does not cause such a problem of electric leakage because the margin is gripped.

According to the sixth aspect of the present invention, a disconnection pattern having a predetermined power consumption, which is provided so as to be bridged over the pair of terminals, and which includes disconnection points capable of communicating, is printed on the ceramic thin plate.

This is because even if the resistor paste is uniformly applied and fired, the resulting ceramic heater has a certain amount of variation in the power consumption of its heating element (hereinafter referred to as the main heating element), and is uniform as a product. This is adjusted because it is difficult to become a standard. "Connectable" means that the disconnection points can be easily connected by soldering or other method. By being electrically connected, the disconnection pattern is added to the heating element, and the power consumption increases accordingly. This kind of disconnection pattern may be provided in any way, but prepare several disconnection patterns that are weighted with a power consumption that is smaller than that of the main heating element and select the required disconnection pattern to communicate. Just process it.

The invention according to claim 7 is also for adjusting the power consumption of the ceramic heater. That is,
The main heating element and a power consumption adjustment pattern smaller than this are baked on one ceramic thin plate. Then, the power consumption corresponding to the difference between the power consumption of the main heating element at the time of power supply and a predetermined set value (for example, rated power consumption) is passed through the adjustment pattern, so that the power consumption of the entire heater is maintained at the set value. Is done. Unlike the invention of claim 6, the power consumption is not adjusted at the time of manufacturing the ceramic heater, and the power consumption flowing through the adjustment pattern is adjusted at the time of use. Therefore, the adjustment process at the time of manufacturing becomes unnecessary. For the adjustment during use, for example, the power consumption of the heating element is measured during use, and the adjustment pattern consumes power corresponding to less than the flat-rate power to maintain a predetermined set value such as the rated power.

[0030]

BEST MODE FOR CARRYING OUT THE INVENTION A ceramic heater 1 for detecting cracks shown in FIG. 1 has a single-layer alumina porcelain obtained by firing a single alumina / green sheet as a ceramic thin plate 2. The heating element 3 is provided in a solid pattern. The width of the ceramic thin plate 2 is 5 cm,
It has a thin plate shape with a length of 12 cm and a thickness of 1.0 mm. The heating element 3 is formed by printing and baking a resistor paste of ruthenium oxide, and a margin portion 4 is provided by leaving the coating only on the periphery of the ceramic thin plate.

More specifically, two long patterns 5'are provided so as to face each other along two sides of the ceramic thin plate to form a pair of terminal portions 5, which are sandwiched between the terminal portions 5,5. The heating element 3 is provided in a solid pattern on the opened planar portion,
Both ends of the solid pattern are overcoated and baked on each terminal portion. Further, the terminal portion 5 has a long one end side serving as a lead wire connecting portion 6, and only the one end side is provided with disconnection patterns 7, 7, ... Described below instead of the solid pattern.

That is, as shown in FIG. 2, one terminal portion 5a
In the vicinity, scattered tip patterns 8,8,
.. are burned, and wire-breaking patterns 7, 7, ... In which thin strip-shaped heating elements 7'are separately hung from the other terminal portion 5b to the tip patterns 8, 8 ,.
The tip pattern 8 is made of a silver paste of the same conductive material as that of the terminal portion 5, and is placed close enough to be soldered to one of the terminal portions 5a. That is, the disconnection pattern 7 is formed in a disconnected state extending from the other terminal portion 5b and shortly before reaching the one terminal portion 5a. If necessary, the tip pattern 8 and the one terminal portion 5a are formed. Can be electrically connected by soldering. By making the contact, a current that did not flow before the contact flows in the disconnection pattern 8 and the power consumption of the ceramic heater 1 increases accordingly, and as a result, the watt adjustment of the ceramic heater 1 is performed. A plurality of such patterns are provided by weighting the power consumption, and the power consumption of the solid pattern heating element 3 (main heating element 3) is intentionally designed to be lower than a predetermined set value (for example, physique power consumption). In addition, even if the power consumption of the main heating element 3 deviates from this design and fluctuates, the fluctuation can be adjusted together with the final addition adjustment of the insufficient power.
After the baking of all the patterns, the heating element side of the ceramic thin plate 2 is glass-coated to protect it.

In addition to the above, as a method of adjusting the power consumption when manufacturing the ceramic heater, there is a method of trimming the main heating element to subtractively adjust the resistance value of the heater. However, the laser-trimmed portion is not preferable because it tends to damage the ceramic thin plate and lowers the heat shock value, but the above disconnection pattern does not cause such a problem.

In the above, the power consumption is adjusted when the ceramic heater is manufactured, but as another adjusting method, a method of adjusting each time when using it may be used. For example, one adjustment pattern may be prepared in addition to the main heating element, and variably adjusted using an element such as a triac. This is because the shortage of the power consumption of the main heating element is known by a microcomputer or the like, and the current corresponding to the shortage is time-divided to the adjustment pattern to allow the supplementary power to be adjusted steplessly. According to this, it suffices to install the adjustment program that performs the above processing in the microcomputer and prepare it, so that the power shortage of the main heating element can be measured at the time of manufacturing, and the soldering contact corresponding to the shortage can be reported. It is convenient because there is no need to process it. The triac itself consumes more power than the relay, but the triac is used for the adjustment pattern that consumes less power than the main heating element. As a result, the power loss caused by this power adjustment can be reduced to such an extent that there is no problem.

A pair of temperature sensor patterns 81 are printed with a silver paste for a mounting electrode of the temperature sensor in a margin on the side of the heating surface where a heating element is provided on the ceramic thin plate. This is to detect the liquor temperature on the side of the heat radiation surface, which is the back surface of the sensor, and the thinness of the ceramic thin plate makes the temperature difference between the front and back of the ceramic heater small. The liquor temperature can be measured relatively accurately by analogy.

[0036] Instead of detecting the liquor temperature <br/> degree from outside through the ceramic thin plate, measure the temperature of the heating element directly, by disparities in terms by analogy measured between this temperature and the liquor temperature Good. For example, in the case of a sake liquor, liquor is heated to about 70 ° C., but when the temperature of the liquor to be heated is 70 ° C.,
In the ceramic heater of the embodiment, the heating element temperature is 120 ° C.
It will be about. At this temperature, the thermistor for the temperature sensor can be directly attached to the heating element with a heat-resistant adhesive, etc., so the temperature of the heating element can be measured directly, and the temperature difference between the heating element and liquor can be determined. The sake temperature should be estimated by analogy. Further, in the case of directly detecting the temperature of the heating element as described above, abnormal heating of the heating element can be immediately detected, so that it is possible to detect the empty heating early, and the heater has high safety.

As an example of the structure of the temperature sensor, a thermistor and two terminals drawn from the thermistor are fixedly mounted on a small insulating plate, and the back surface of the insulating plate is heated (or coated with a heating element). It is glued on top of the existing glass coat).

Next, an example of using the ceramic heater of the above embodiment will be described. In this example, we heat while running sake,
The present invention relates to a liquor container configured to discharge the liquor that has been boiled, and the heater using the ceramic heater of the above-described embodiment is used to heat the liquor.

As shown in FIG. 3, the heater 10 is prepared by preparing two ceramic heaters 1 described above, and bonding the two ceramic heaters 1 to the front and back of a rectangular mounting frame 11 to form a flat box-shaped hermetic container. Is formed. At that time, ceramic heater 1
Is the mounting frame 1 with the heating element 3 facing outward from the heater 10.
It is attached to 1. Further, a rectangular ring-shaped silicon packing 12 is put on the periphery of the ceramic heater,
It is fitted and attached to the mounting frame 11. As shown in FIG. 4, the thus-formed hermetically sealed container-shaped heater 10 is housed in a state of being sandwiched between two cases 13 and 13 having two front and back sides. At that time, the margin portion 4 of the ceramic heater 1 is pressed by the inner peripheral edge of the case 13,
As a result, the front and back of the blank space 4 are held by the mounting frame 11 and the case 13 via the packing 12. The heater 10 is provided with an inlet 11a and an outlet 11b in a mounting frame 11, and sake is boiled at a desired temperature while flowing sake through the heating portion 10 by a pump (not shown).

Since the heater 10 starts heating after the liquor is filled, the heat radiating surface 9 is always in contact with the liquor during heating, and the heater 1 does not become empty. In addition, since the sake is kept flowing during heating, the ceramic heater 1 will continue to be cooled by the sake, and the heating element side will keep 120-
It can be suppressed to around 130 ° C.

Further, since the temperature rise can be quickly started at the same time when the sake is started to flow, the brewing temperature does not vary, and the liquor at the first discharge does not have a lower brewing temperature than expected. After the discharge, the heater is emptied and the remaining liquor is stored. If you want to empty
Power supply is stopped just before it becomes empty, and since the heater has a thin ceramic plate, there is almost no heat storage, and as a result, the ceramic heater is immediately cooled to room temperature, and sake that is wet on the heat dissipation surface burns with residual heat. There is no such thing. Further, even when the liquor is stored, the sake is not overheated by the residual heat.

Further, in the case of a conventional heating element having a diagrammatic pattern, the temperature of the radiating surface varies depending on the location of the pattern / the location where the pattern is absent, resulting in uneven heating.
Moreover, the thinner the ceramic plate, the more the pattern is
The difference in the temperature of the heat radiation surface due to the absence of heat is increased, and heating unevenness is more likely to occur. This is because the thinner the temperature, the more easily the temperature of the heating element is directly reflected on the heat radiation surface. In this respect, since the ceramic heater of the present invention has a substantially solid pattern, even if the heating element temperature is directly reflected on the heat radiation surface, there is no heating unevenness,
Uniform heating is possible.

The present invention is not limited to the above embodiments. Margins unit is not the entire periphery of the ceramic heater may be part of the surroundings. The pair of terminals is 2
It means a pole. The pattern is not necessarily limited to two, and the pattern itself forming the terminal portion may be any number. The substantially solid pattern may be of any type as long as it is within the scope of the present application, and even if it is visually similar to a diagram, it has the same effect as the solid pattern of the present application due to a wide pattern width. If such is obtained, such a thing is also included.

[Brief description of drawings]

FIG. 1 is a plan view of a ceramic heater.

FIG. 2 is a plan view of the ceramic heater of FIG. 1 in the process of being manufactured, in which only a terminal portion and a tip pattern are printed, and a solid pattern heating element and a disconnection pattern are not printed.

FIG. 3 is an exploded perspective view of a heater.

FIG. 4 is an explanatory diagram when the heater is housed in a case.

FIG. 5 is a diagram showing an example of a conventional ceramic heater.

FIG. 6 is an exploded perspective view of a liquid heater using the ceramic heater of FIG.

7 is a diagram illustrating how to install the ceramic heater of FIG.

FIG. 8 is a diagram illustrating a diagrammatic pattern of a conventional ceramic heater.

FIG. 9 is an explanatory diagram of a defect pattern of a heating element, in which the cross sectional state shown in (a) is missing, and (b)
It is shown that when the cross-sectional state shown in FIG.

[Explanation of symbols]

1 Ceramic heater 2 Ceramic thin plate 3 heating element 4 margin 5 terminals 6 connection 7 disconnection pattern 8 Tip pattern 10 heating unit 11 mounting frame 13 cases

─────────────────────────────────────────────────── --- Continuation of the front page (56) Reference JP-A-63-117718 (JP, A) JP-A-6-189850 (JP, A) JP-A-8-138833 (JP, A) JP-A-10- 133502 (JP, A) JP-A-54-5239 (JP, A) Actual opening Sho 53-47633 (JP, U) Actual opening Sho 61-70394 (JP, U) Actual opening Sho 53-112842 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) H05B 3/20 H05B 3/00 H05B 3/06 H05B 3/10 A47J 27/21

Claims (7)

(57) [Claims] 1. A heater comprising a ceramic heater having a heating element coated and baked in a substantially solid pattern on one side of a thin ceramic plate which does not cause a large difference in temperature between front and back sides . a Sakekan device, the ceramic heater, said flowed liquor while directly touching the heat radiating surface with the heat radiating surface of the side not provided heating element of the ceramic sheet so as to pressurized <br/> heat The heater is provided, and the heater has an inlet for taking in liquor and an outlet for discharging the liquor that has been sprinkled. A distinctive sake liquor. 2. The sake cup according to claim 1 , wherein the ceramic heater comprises a single ceramic thin plate. 3. A ceramic heater is characterized in that a terminal portion of a heating element is formed in a pair of long patterns facing each other, and the heating element is provided in a planar portion sandwiched between the terminal portions. The sake liquor according to claim 1 or 2. 4. A ceramic heater is provided on the surface of a heating element.
The temperature sensor according to claim 1, wherein the temperature sensor is provided.
Sake cup. 5. The ceramic heater is mounted on a desired mounting frame.
It has a corresponding shape and does not have a heating element.
The white part is provided around the ceramic thin plate, and the front and back of the blank part are attached by gripping with packing.
The device according to claim 1, wherein the device is attached to a frame.
The sake liquor listed in the wrong place. 6. The ceramic heater has a pair of terminal portions.
With a disconnection pattern of predetermined power consumption that is provided so as to be passed over
There is a disconnection pattern that includes disconnection points that can be contact processed.
A contract characterized by being baked on a ceramic thin plate
The sake liquor according to any one of claims 1 to 5. 7. The ceramic heater is smaller than the heating element.
The power consumption adjustment pattern is the power consumption when a predetermined power is supplied to the heating element.
The power consumption corresponding to the difference from the set value of
Adjustment pattern to maintain the total power consumption at the set value
It is characterized in that the oven is baked on a ceramic thin plate.
7. The sake liquor according to any one of claims 1 to 6.