JP4032000B2 - Manual water heater - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a manual water supply type warmer, for example, a manual water supply type hot water bath that heats and keeps food and drink in a food and drink tank manually with warm water (hot water) that is manually fed into a warm water tank. The present invention relates to a manual water supply type cooler that cools and keeps food and drink in a tank with warm water (cold water) manually fed into a warm water tank.
[0002]
[Prior art]
The manual water-fed water bath is known as, for example, the product “TSC-20D or URN60C coffee machine” of the applicant of the present application, and includes a food and drink tank in which food and drink (coffee) is stored, and the food and drink tank at the bottom and A warming water tank that can contain warm water (water that becomes hot water) that is enclosed from the side and is manually supplied to the inside, and that keeps the food and drink in the food tank with the warm water, and in the warm water tank A heat retention control means (heater and its control device) for controlling the heat retention of the heat retaining water based on the water temperature is provided, and the food and drink in the food and drink tank can be kept warm within a set temperature range.
[0003]
[Problems to be solved by the invention]
In the above-described conventional manual water supply type water bath, when the power is turned on, the heat retention control means (heater and its control device) starts to operate, and the heat retaining water in the heat retaining water tank is heated and insulated based on the water temperature. . Further, the heat retaining control means is provided with an air thermostat, and when the air thermostat detects a set temperature, the energization to the heater is turned off.
[0004]
For this reason, when the user turns on the power without supplying water into the heat-reserving water tank, the heat-retaining control means (heater and its control device) starts to operate so that the air thermostat of the heat-retaining control means It functions to turn off the power to the heater and prevent emptying. Therefore, in the conventional manual water bath, the user manually supplies an appropriate amount of water to the hot water tank before turning on the power. Usability and operation of the manual water bath There is room for improvement in sex.
[0005]
SUMMARY OF THE INVENTION
The present invention has been made to cope with the above-described problems, and is a food and drink tank that accommodates food and drink, and warm water that surrounds the food and drink tank from the bottom and sides and is manually supplied to the inside. A warming water tank that keeps the food and drink in the food and drink tank in the same warm water, and a warming control means for controlling the warming and cooling temperature of the warmed water in the warming water tank based on the water temperature. In the manual water supply type warmer capable of keeping food and drink in the food and drink tank within a set temperature range, the water level of the warm water contained in the warm water tank is kept in the warm water tank. the food level warmth water accommodated in the heat insulating water tank and detects that the maximum capacity of food contained in the tank is kept assurance level can be kept at a set temperature range the at Insulated water level below It is characterized in that provided capable of outputting insulation assurance level detecting means a detection signal, a stop means for stopping the operation of said heat keeping control means based on the detection signal output from the thermal insulation guaranteed level detecting means when it is .
[0006]
In this way, when the water level of the warm water stored in the warm water tank becomes lower than the warm guarantee water level , the warming control means is operated by the stop means based on the detection signal output from the warm guarantee water level detection means. It is possible to stop wasteful energy consumption due to use of the manual water heater in an inappropriate state.
[0007]
In carrying out the present invention, it is also possible Rukoto provided an informing means which is operated on the basis of the detection signal the warmth assurance level detecting means outputs. In this way, it is possible to notify the user in a timely manner that the water level of the warm water stored in the warm water tank has become less than the guaranteed warm water level, and the water supply to the warm water tank can be timed. It can be done well.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 and FIG. 2 show an embodiment in which the present invention is implemented in a manually fed water bath. The manually fed water bath of this embodiment keeps the coffee A in the food and drink tank 11 in a set temperature range. It is a possible hot coffee dispenser, and contains a food and drink tank 11 in which coffee A is stored, and warm water B that surrounds the food and drink tank 11 from the bottom and sides and is manually supplied to the inside. A heat retaining water tank 12 that retains the coffee A in the food / drink tank 11 with water B and a heat retaining control means 20 that controls the heat retaining water B in the heat retaining water tank 12 based on the water temperature are provided.
[0009]
The food and drink tank 11 is a cylindrical tank having an upper opening 11 a at the upper end and a lower opening 11 b communicating with the spout 15 via the pouring pipe 13 and the pouring cock 14 at the bottom. It is assembled to. The food / beverage tank 11 is formed in a shape that is long in the vertical direction (a shape from the upper opening 11a to the lower opening 11b is deep), and the coffee A extracted by the drip method is supplied dropwise from above and stored. The maximum accommodation amount is defined as the amount up to the water level position (this water level is a fourth water level described later) indicated by the two-dot chain line in FIG. The upper opening 11a of the food / drink tank 11 can be opened and closed by an opening / closing lid 11c.
[0010]
In addition, as shown in FIG. 1, the ground electrode Se, the reference electrode So, and the first to fourth water level electrodes S <b> 1, S <b> 2, S <b> 3, S <b> 4 are assembled to the food / drink tank 11 so as to be in contact with the coffee A. As shown in FIG. 3, the electric control unit ECU is connected. These electrodes Se, So, S1, S2, S3, and S4 indicate the water levels (first water level, second water level, third water level, and fourth water level) of coffee A according to the interelectrode potential detected by the electric control unit ECU. It is to detect.
[0011]
The electric control unit ECU has a food tank water level determination unit and a water level display lamp control unit, and uses the interelectrode potential between the ground electrode Se and the reference electrode So as a reference potential, and the first to first ground electrodes Se. It is determined whether or not each inter-electrode potential between the four water level electrodes S1, S2, S3, S4 is within the set range with respect to the above-described reference potential. The water level display lamps L1, L2, L3, and L4 for displaying the respective water levels are turned on. When the water level is out of the set range, it is determined that there is no water level, and the water level display lamps L1, L2 are determined. , L3, L4 are turned off.
[0012]
As shown in FIG. 2, each of the water level display lamps L1, L2, L3, and L4 is arranged on the front surface of the main body 19 together with the power lamp Lo, and is connected to the electric control unit ECU as shown in FIG. The operation is controlled by the electric control unit ECU. Each of the water level display lamps L1, L2, L3, L4 corresponds to the first to fourth water level electrodes S1, S2, S3, S4. For example, the water level where the fourth water level electrode S4 is disposed. When the coffee A is stored up to the position, all the water level display lamps L1, L2, L3, L4 are turned on, and the coffee A is stored up to the water level position where the first water level electrode S1 is disposed. If it is, only the water level indicator lamp L1 is lit.
[0013]
The power lamp Lo is disposed above the uppermost water level display lamp L4 in FIG. 2, and is connected to the electric control unit ECU as shown in FIG. 3, and its operation is controlled by the electric control unit ECU. The hot coffee dispenser is turned on when the power is turned on and turned off when the power is turned off.
[0014]
The insulated water tank 12 is a rectangular tubular aquarium having a heat insulating structure on the outer side, surrounds the food and drink tank 11 from the bottom and sides, and contains the insulated water B supplied manually inside. . The warm water B in the warm water tank 12 can be heated by a heater 21 assembled at the rear of the rear wall of the warm water tank 12, and the coffee A in the food and drink tank 11 can be heated and warmed by the warm water B. It is. The heater 21 is an electrothermally cast heater, and energization is controlled by the electric control unit ECU.
[0015]
In addition, as shown in FIG. 1, the temperature retaining water tank 12 detects the temperature of the temperature retaining water B in the temperature retaining water tank 12 and the temperature level of the temperature retaining water B stored in the temperature retaining water tank 12. The water level sensor S12 is assembled, and these sensors S11 and S12 are connected to the electric control unit ECU as shown in FIG. As shown in FIG. 1, an overflow pipe 16 is assembled in the warm water tank 12 so that the water level of the warm water B stored in the warm water tank 12 does not exceed the overflow water level. .
[0016]
The temperature sensor S11 is disposed at a substantially central portion in the vertical direction in the heat insulating water tank 12, and the heater 21 whose energization is controlled by the electric control unit ECU is used to maintain the temperature of the hot water B in the heat insulating water tank 12 based on the water temperature. Thus, a heat retention control means 20 for controlling the heat retention is configured. The water level sensor S12 detects the heat retention guaranteed water level indicated by the one-dot chain line in FIG. 1, and is disposed in the heat retaining water tank 12 at a set position above the position where the temperature sensor S11 is disposed. A detection signal (alarm signal) is output to the electric control unit ECU when the water level of the warm water B stored in the water tank 12 becomes lower than the above-described guaranteed warm water level. The above-mentioned heat insulation guaranteed water level is the maximum amount of water that can be accommodated in the food / drink tank 11 (the water level of the coffee A is the position where the fourth water level electrode S4 is disposed). Is a water level that can keep the temperature of coffee A in a set temperature range.
[0017]
The electric control unit ECU includes the above-described control function units, and all the water level display lamps L1, L1 are based on a detection signal output from the water level sensor S12 when the water level of the heat retaining water B becomes lower than the heat retaining guaranteed water level. A blinking control unit that blinks L2, L3, and L4 and an energization stop unit that stops energization of the heater 21 are provided in the main body 19. The electric control unit ECU also includes an airborne prevention unit that stops energization of the heater 21 when the temperature of the heater 21 itself rises above the set temperature.
[0018]
In the hot coffee dispenser of this embodiment configured as described above, the food / beverage tank 11 is heated and insulated from the bottom and sides by the warm water B in the warm water tank 12, so that the coffee A in the food / beverage tank 11 can be used. The coffee A in the food and drink tank 11 can be poured out from the spout 15 by opening the pouring cock 14 from the closed state.
[0019]
By the way, in this embodiment, it is possible to detect the water level of the warm water B stored in the warm water tank 12 by the water level sensor S12, and all the water levels are based on the detection signal output from the water level sensor S12. The display lamps L1, L2, L3, L4 can be blinked. For this reason, the user can grasp the water level in the heat-reserving water tank 12 and can accurately use and operate the hot coffee dispenser, and can improve the usability and operability of the hot coffee dispenser. It is.
[0020]
Moreover, in this embodiment, the water level sensor S12 sets the maximum storage amount of coffee A stored in the food / drink tank 11 with the heat insulation guaranteed water level, that is, the heat insulation water B accommodated in the heat insulation water tank 12. It is possible to detect the water level that can be kept warm. For this reason, it is possible to encourage maintaining the water level of the warm water B in the warm water tank 12 to be equal to or higher than the warm guarantee water level, and the maximum capacity of the coffee A stored in the food / drink tank 11 is kept within the set temperature range. It is possible to encourage the use in a state that can be kept warm.
[0021]
In this embodiment, the water level sensor S12 can output a detection signal when the water level of the warm water B stored in the warm water tank 12 is lower than the warm guarantee water level, and based on this detection signal. The blinking control unit of the electric control unit ECU causes all the water level display lamps L1, L2, L3, and L4 to blink. For this reason, informing the user in a timely manner that all the water level display lamps L1, L2, L3, and L4 are blinking when the water level of the warm water B stored in the warm water tank 12 is lower than the water temperature guarantee level. It is possible to supply water into the insulated water tank 12 with good timing.
[0022]
In this embodiment, the energization stop unit of the electric control unit ECU stops energization of the heater 21 based on the detection signal output from the water level sensor S12. For this reason, when the water level of the heat retaining water B stored in the heat retaining water tank 12 becomes lower than the heat retaining guaranteed water level, it is possible to stop the energization of the heater 21, and waste due to use in an inappropriate state. Energy consumption (power consumption) can be suppressed.
[0023]
In the above embodiment, the warm water B in the warm water tank 12 can be heated by the heater 21 assembled outside the warm water tank 12, and the coffee A in the food and drink tank 11 is heated and warmed by the warm water B. Although the present invention has been implemented in a manually-fed water bath configured as described above, the warm water in the warm water tank 12 can be cooled by a cooling pipe disposed in the warm water tank 12, and the warm water (cooled) The present invention can be similarly applied to a manual water supply type cooler configured such that food and drink in the food and drink tank 11 are cooled and kept warm.
[0024]
Moreover, in the said embodiment, although the food / beverage accommodated in the food / beverage tank 11 demonstrated the case where it was coffee, the food / beverage accommodated in the food / beverage tank 11 may be drinks other than coffee. It may be food and drink other than beverages. Moreover, in the said embodiment, although it was made to notify a user by blinking operation | movement of all the water level display lamps L1, L2, L3, L4, the alerting | reporting means to notify a user is not limited to the said embodiment. For example, a notification means such as a buzzer may be used.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional side view of an essential part showing an embodiment in which the present invention is implemented in a manually fed water bath.
FIG. 2 is a front view of the manually fed water bath shown in FIG.
FIG. 3 is a diagram showing an electrical connection relationship between the electric control device of the manual water supply type water bath shown in FIGS. 1 and 2 and various sensors, heaters, and lamps.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 11 ... Food / beverage tank, 11a ... Upper opening, 11b ... Lower opening, 11c ... Opening / closing lid, 12 ... Warm water tank, 13 ... Outlet pipe, 14 ... Outlet cock, 15 ... Outlet, 16 ... Overflow pipe, 19 ... Main body: 20 ... Insulation control means, 21 ... Heater, ECU ... Electric control device, A ... Coffee, B ... Insulation water, Lo ... Power lamp, L1, L2, L3, L4 ... Water level display lamp, Se, So, S1, S2, S3, S4... Electrode for detecting water level, S11... Temperature sensor, S12.

Claims (2)

A food and drink tank in which the food and drink are stored, and the food and drink in the food and drink tank that can store the water and the warm water that is manually supplied to the inside of the food and drink tank from the bottom and sides. A heat-retaining water tank and heat-retaining control means for controlling heat-retaining or cooling heat-retaining water in the heat-retaining water tank based on the water temperature. In a possible manual water supply type warmer, the maximum amount of food or drink that can be stored in the food tank with the water level of the warm water stored in the warm water tank stored in the warm water tank. A warming guarantee that can detect that the water temperature is within the set temperature range and can output a detection signal when the water level in the warming water tank falls below the warming guarantee water level. the water level detection means Manual water type warmer, characterized in that a stopping means for stopping the operation of said heat keeping control means based on the detection signal output from the thermal insulation guaranteed level detecting means. 2. The manual water supply type warmer according to claim 1, further comprising a notification means that operates based on a detection signal output from the heat insulation guaranteed water level detection means .

Images