CN2537323Y - Electric coffee pot capable of automatically detecting and removing scale - Google Patents
Electric coffee pot capable of automatically detecting and removing scale Download PDFInfo
- Publication number
- CN2537323Y CN2537323Y CN 02206687 CN02206687U CN2537323Y CN 2537323 Y CN2537323 Y CN 2537323Y CN 02206687 CN02206687 CN 02206687 CN 02206687 U CN02206687 U CN 02206687U CN 2537323 Y CN2537323 Y CN 2537323Y
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Abstract
The utility model relates to an electric coffeepot which detects whether the scale needs to be removed automatically, comprising a water tank, a base positioned under the water tank, a bearing seat positioned above the base, and a circuit device positioned in the base. The utility model is characterized in that the base comprises a casing, an electrical heating element and a heat pipe, wherein the electrical heating element and the heat pipe are arranged in the casing; the circuit device comprises a central processing unit (CPU), a temperature sensing element, an input unit for setting the relative set values, an electric heating control unit and an alarm unit which are connected with the CPU respectively, wherein the temperature sensing element is used for sensing the temperature of the heat pipe and outputting the temperature signal to the CPU, a temperature interval is preset by the CPU, when the temperature inducted by the temperature sensing element reaches to the boiling point, then the CPU calculates the average water boiling temperature and outputs an alarm signal when the average water boiling temperature is in the temperature interval; the alarm unit is used for receiving and displaying the alarm signal. The utility model has an advantage of accurate detection of the scale remove opportunity.
Description
(1) technical field:
The utility model relates to a kind of electric coffee maker, particularly a kind of electric coffee maker that can detect the scale removal demand automatically, its in due course machine remind the user to remove incrustation scale.
(2) background technology:
General electric coffee maker, normally a heating is arranged a base internal preset, but utilize heating when energising to a heat pipe contact heating of making heat conduction by metal material, make one to be fixed on the water that is installed in the water tank of base top, the rapid ebuillition of heated of quilt by heat pipe the time, and evaporation, be transported to a stacker that is installed in the water tank upper end, the coffee powder that is placed on this stacker inside is in advance mixed with the high-temperature water of heat pipe institute evaporation and condensation, just can brew out reeky coffee.
Because heat pipe is heated to water in the process of boiling, calcium carbonate contained in the water can build up the inwall that condenses in heat pipe, and the generation incrustation scale, when scale buildup thickness is more and more thicker, can make efficiency of heating surface variation, therefore, the user can be after coffee pot uses pre-determined number usually, remove the incrustation scale in the heat pipe, to keep the higher efficiency of heating surface.
Though as seen coffee pot is arranged on the market, after the number of times accumulative total of infusing coffee reaches pre-determined number,, reminds the user to remove the interior incrustation scale of heat pipe just in the shinny mode of indicator lamp.Remove the operation of incrustation scale, generally be with suitable cleaning agent, pour in the water tank as acetic acid, cleaning agent is flowed in the heat pipe, and utilize heating element heater to provide suitable pre-thermal power heat pipe, lentamente cleaning agent is boiled the universe, like this, just the incrustation scale that can condense in cleaning agent and the heat pipe produces chemical change, makes incrustation scale come off on tube wall, decompose, at last, just can reach the purpose of removing with the clear water flushing.
But may exist very big gap the opportunity that above-mentioned incrustation scale is removed with the actual time that reaches the scale removal demand, its reason is: different country origins, the water quality of zones of different is difference to some extent, cause the accumulative speed difference of incrustation scale in the heat pipe, the difference that more can be accustomed to drinking water with the user, cause the rate of set difference of incrustation scale, running water for example, mineral water, the water that reverse osmosis water or various water filter are produced, the capital makes the accumulative speed of incrustation scale in the heat pipe have notable difference, therefore if with the coffee brewing number of times as the foundation of whether removing incrustation scale, discrepancy may be arranged with the opportunity that actual needs is removed incrustation scale, for example, general running water is in boiling part, the as easy as rolling off a log incrustation scale that condenses in heat pipe, reverse osmosis water and is difficult for the incrustation scale that condenses in heat pipe in boiling part on the contrary.That is to say, if respectively when brewing water as coffee pot with general running water and reverse osmosis water, identical brew number of times after, the incrustation scale in the coffee pot that brews with running water on the heat pipe can be more than using reverse osmosis water serious.Therefore, when the coffee pot that uses running water has the incrustation scale of removing demand, use the coffee pot of reverse osmosis water but not reach the needs of removing incrustation scale as yet.
(3) summary of the invention:
The purpose of this utility model is to provide a kind of and accumulates the electric coffee maker that state can detect the scale removal demand automatically according to incrustation scale.
For achieving the above object, the utility model is taked following technical measures:
The electric coffee maker that can detect the scale removal demand automatically of the present utility model comprises: water tank, one can draw the water of water receiving case and the base that is boiled, one be positioned at stacker and circuit arrangement that is installed in base that the base top is used for being installed in coffee powder and accepts boiling water that base is sent; Base is positioned at the below of water tank, has a shell and is installed in heating and a heat pipe that is used for drawing the water in the water receiving case of enclosure, and heat pipe is subjected to the heating heating and will manage interior water boil and deliver to stacker;
Circuit arrangement comprise a CPU and a temperature-sensing element that is connected with CPU respectively, input block that is used to set the related setting value, one be used to control heating and connect and the electric heating control module that cuts off power supply and a caution unit;
Temperature-sensing element is used for the temperature of tube wall outside of sensing heat pipe, and the output temperature signal is to CPU, CPU preestablishes a temperature range, after the temperature that temperature-sensing element is responded to reaches water boiling point, calculate an average temperature to boil water, and when average temperature to boil water drops in this temperature range, export an alarm signal, the caution unit has a caution element, and the caution element is used for receiving and showing the alarm signal that CPU is exported.
Wherein, the temperature average to boil water that described CPU is calculated is that the upper and lower peak value of each temperature fluctuation of picking up in one scheduled time of foundation on average gets.
Wherein, described caution element is a LCD, and its dew is stretched the surface at described shell;
When described caution element received the alarm signal of described CPU output, the caution element showed the predetermined printed words of corresponding alarm signal.
Wherein, when described caution element receives alarm signal, demonstrate " Clean " printed words.
Compared with prior art, the utlity model has following effect:
Because coffee pot of the present utility model can directly reflect the thickness of the inner incrustation scale of heat pipe, therefore, even if adding, coffee pot uses the different various water of scale buildup speed, when its circuit arrangement can both arrive predetermined thickness in the scale buildup of heat pipe inwall, more accurately and in time send alarm signal, remind the user to remove incrustation scale, compare with existing coffee pot, the utility model can detect the correct opportunity that needs to remove incrustation scale really more exactly automatically, and is practical.
(4) description of drawings:
Fig. 1: the utility model can detect the stereogram of an embodiment of the electric coffee maker of scale removal demand automatically;
Fig. 2: the elevation cross-sectional view of base in embodiment illustrated in fig. 1;
Fig. 3: the circuit block diagram of circuit arrangement in embodiment illustrated in fig. 1;
Fig. 4: the circuit diagram of circuit arrangement in embodiment illustrated in fig. 1.
(5) specific embodiment:
Reaching embodiment in conjunction with the accompanying drawings is described in detail as follows architectural feature of the present utility model:
As shown in Figure 1, the utility model electric coffee maker that can detect the scale removal demand automatically comprises: water tank that is used for adorning water 2, base that can draw the water of water receiving case 2 and be boiled 3, one be positioned at base 3 tops be used for being installed in coffee powder and accept the stacker 4 of boiling water and one be installed in the circuit arrangement 5 that base 2 is used for detecting the scale removal demand.Because the structure and the installation position of water tank 2 and stacker 4 can optionally be made different designs, and non-improvement emphasis of the present utility model place, seldom explain below therefore.
As shown in Figure 2, the elevation cross-sectional view of its expression middle base embodiment illustrated in fig. 1; Base 3 is positioned at the below of water tank 2, has heating 32 and a heat pipe 33 that is connected to water tank 2 and is subjected to heating 32 heating that a shell 31, is installed in shell 31 rearward end 311.Heat pipe 33 flatly is built up in the rearward end 311 of shell 31, its two ends are respectively by 3 oral siphon 34 and outlet pipes 35 that are provided with in addition of base, and can introduce the water that water tank 2 is installed in via oral siphon 34 non-returnly, heating 32 is contacted with the bottom of heat pipe 33, and can be when the energising heating, high temperature is passed to heat pipe 33, make the water in the heat pipe 33 be heated to fluidized state apace, and up deliver to stacker 4 via the high-temperature vapor that outlet pipe 35 will boil evaporation, and condense into high-temperature water, to carry out brewing of coffee.Heat pipe 33 is in process to boil water, in case after water is boiled and delivers to stacker 4, continued water to be heated is supplemented in the heat pipe 33 by water tank 2.
As shown in Figures 3 and 4, circuit arrangement 5 is installed in the shell 31 of base 3, include: one can be controlled and supply AC power AC is used for the temperature-sensing element 52 of sensing heat pipe 33 temperature and output temperature signal, the input block that can export the related setting value of infusing coffee for pressing operation 53, the CPU 54 that can do intended flow control according to the temperature signal of temperature-sensing element 52 to the electric heating control module 51 of heating 32, one, and one excited by CPU 54 and sends the caution unit 55 of predetermined alarm signal.
Wherein, temperature-sensing element 52 is installed in the position that can sense heat pipe 33 temperature, can be contacted with the tube wall outside of heat pipe 33, and the temperature signal of sensing heat pipe 33 temperature is delivered to CPU 54.
CPU 54 is set up its required operation program with program in advance, can make power supply, temperature, time, water yield according to the numerical value that input block 53 is imported ... etc. relevant control.CPU 54 is connected with temperature-sensing element 52, can receive the temperature signal that temperature-sensing element 52 is exported, CPU 54 is removed and can be compared according to the temperature signal of temperature-sensing element 52, and beyond the heating via electric heating control module 51 control heatings 32, more set when temperature-sensing element 52 senses heat pipe 33 temperature and reach approximately after the water boiling point (100 ℃), then calculating an average temperature to boil water in the heating process backward, the account form of this average temperature to boil water, can calculate according to different sample modes, for example heat pipe 33 is with water boil and when sending, continue water to be heated is supplemented in the heat pipe 33 by water tank 2, therefore, the temperature of temperature-sensing element 52 heat pipe that senses 33, be presented near the state that fluctuates up and down the boiling point, according to this state variation, the temperature sampling that CPU 54 is done, just can in a scheduled time, pick up each temperature fluctuation on, following peak value also on average gets, when this average temperature to boil water is not condensed incrustation scale in heat pipe 33, approximate 100 ℃ of the boiling points of water, because temperature-sensing element 52 is positioned at the outside of heat pipe 33, therefore, if consider heat conduction efficiency, 54 actual temperature average to boil water of trying to achieve of CPU can be a little more than 100 ℃, for example 105 ℃.Certainly, the account form of aforementioned average temperature to boil water can on average get according to temperature value T1, the T2～Tn that the time received respectively of pre-determined number in addition.
If further analyze, can influence heat conducting factor, the thickness of the incrustation scales that condense in the heat pipe 33 can directly influence heat conduction efficiency as can be known, that is to say that to work as incrustation scale thick more, and it is poor more to cause the heat of heat pipe 33 to be conducted.Therefore, after the tube wall inside of heat pipe 33 is condensed incrustation scale gradually, increase the blocking effect that is produced with incrustation scale thickness, the heat transfer efficiency that can make heat pipe 33 is variation gradually, cause and water in the pipe will be heated to when seething with excitement, the outer temperature of pipe can be more and more higher, and be higher than 100 ℃.The result as can be known according to this, when heat pipe 33 builds up when increasing with brewing number of times, will be thick more because of the incrustation scale that condenses in its tube wall, the temperature average to boil water that makes CPU 54 calculate gained just can be more and more higher, for example may be promoted to 115 ℃ gradually by 105 ℃, 106 ℃, 107 ℃, in addition higher.CPU 54 in the present embodiment is according to this characteristic, preestablish a temperature range, for example 110 ℃～115 ℃, and when average temperature to boil water drops on this temperature range, by CPU 54 outputs one alarm signal, thick in the degree that must remove with the incrustation scale that is condensed in the expression heat pipe 33.
By above-mentioned setting means, be used as the comparison basis of temperature to boil water in the present embodiment, can avoid when the water in the water tank 2 uses up, the situation that CPU 54 is also exported alarm signal takes place with temperature range.Because in water tank 2, do not have water, can cause heat pipe 33 temperature sharply to rise, and very fast 110 ℃～115 ℃ of the temperature ranges that surpass, that is to say, in the case, CPU 54 detected average temperature to boil water can be far above 115 ℃, and drop on beyond the aforementioned temperature interval, make CPU 54 not export alarm signal.In fact, the external temperature of heat pipe 33 rises and surpasses the aforementioned temperature interval, when normally occurring in water in the water tank 2 and using up, therefore, when setting, can be in the temperature sampling process that the average temperature to boil water of CPU 54 calculating is done, when having detected that arbitrary probe temperature is higher than a setting value as 120 ℃ the time, can set by CPU 54,, also not export alarm signal even if the temperature average to boil water of being tried to achieve drops in 110 ℃～115 ℃ of the temperature ranges.Usually when the rapid rising of heat pipe 33 temperature reaches a temperature extremes value (for example 140 ℃); CPU 54 can provide a kind of defencive function; just controlling aforementioned electric thermal control units 51 cuts off the electricity supply; make heating 32 stop heating; cause danger preventing; because general coffee pot all possesses this defencive function is arranged, therefore no longer explaining more.
In the present embodiment because caution element 551 displayable temperature, time, contents such as water yield are not design focal point of the present utility model, therefore, figure does not show, do not explain yet, only caution element 551 is illustrated at the reception show state that alarm signal produced, as shown in Figure 1, when caution element 551 receives alarm signal and when being stimulated, it produces the corresponding warning action, is to demonstrate predetermined printed words, and printed words shown in the present embodiment are " Clean (removing) ", but not as limit, utilize this to show signal prompting user, the incrustation scale that condenses in heat pipe 33 inside is too thick, should remove.
In addition, what deserves to be mentioned is, in fact warn the electronic component that element 551 can adopt other types, for example can send the electronic component of the sound or light, can utilize the sound or light signal to remind the user to remove incrustation scale at this.With regard to integral body caution unit 55, the quantity that is provided with of caution element 551 is not exceeded with one, that is to say, whole caution unit 55 more can have other caution elements that are different from the foregoing liquid crystal type of display simultaneously, can produce the sound, light or other alarm signals simultaneously, remind the user to carry out the removing of heat pipe 33 inner incrustation scales.But with regard to reminding effect, the caution element 551 in the present embodiment adopts LCD, and demonstrates " Clean " printed words when receiving alarm signal, really can be through reaching the purpose of reminding the user to remove incrustation scale.
Claims (4)
1, a kind of electric coffee maker that can detect the scale removal demand automatically comprises: water tank, one can draw the water of water receiving case and the base that is boiled, one be positioned at stacker and circuit arrangement that is installed in base that the base top is used for being installed in coffee powder and accepts boiling water that base is sent; Base is positioned at the below of water tank, has a shell and installing heating in the enclosure and a heat pipe that is used for drawing the water in the water receiving case, and heat pipe is subjected to the heating heating and will manages interior water boil and deliver on the stacker;
It is characterized in that: circuit arrangement comprise a CPU and a temperature-sensing element that is connected with CPU respectively, input block that is used to set the related setting value, one be used to control heating and connect and the electric heating control module that cuts off power supply and a caution unit;
Temperature-sensing element is used for the temperature of tube wall outside of sensing heat pipe, and the output temperature signal is to CPU, CPU preestablishes a temperature range, after the temperature that temperature-sensing element is responded to reaches water boiling point, calculate an average temperature to boil water, and when average temperature to boil water drops in this temperature range, export an alarm signal, the caution unit has a caution element, and the caution element is used for receiving and showing the alarm signal that CPU is exported.
2, the electric coffee maker that can detect the scale removal demand automatically according to claim 1, it is characterized in that, the temperature average to boil water that described CPU is calculated is that the upper and lower peak value of each temperature fluctuation of picking up in one scheduled time of foundation on average gets.
3, the electric coffee maker that can detect the scale removal demand automatically according to claim 1 is characterized in that, described caution element is a LCD, and its dew is stretched the surface at described shell;
When described caution element received the alarm signal of described CPU output, the caution element showed the predetermined printed words of corresponding alarm signal.
4, the electric coffee maker that can detect the scale removal demand automatically according to claim 3 is characterized in that, when described caution element receives alarm signal, demonstrates " Clean " printed words.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02206687 CN2537323Y (en) | 2002-03-01 | 2002-03-01 | Electric coffee pot capable of automatically detecting and removing scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02206687 CN2537323Y (en) | 2002-03-01 | 2002-03-01 | Electric coffee pot capable of automatically detecting and removing scale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2537323Y true CN2537323Y (en) | 2003-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02206687 Expired - Lifetime CN2537323Y (en) | 2002-03-01 | 2002-03-01 | Electric coffee pot capable of automatically detecting and removing scale |
Country Status (1)
| Country | Link |
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| CN (1) | CN2537323Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101237797B (en) * | 2005-08-11 | 2010-07-21 | 奥特控制有限公司 | Scale detection on water heating elements |
| CN102138167A (en) * | 2009-03-12 | 2011-07-27 | 沃尔玛百货有限公司 | Time since brew indicator for beverage maker |
| CN104911885A (en) * | 2014-03-14 | 2015-09-16 | 佛山市顺德区美的电热电器制造有限公司 | Hanging ironing machine and control method thereof |
| CN105785847A (en) * | 2014-12-25 | 2016-07-20 | 陈闺艳 | Full automatic microcomputer-controlled water boiling device and production method thereof |
| CN108036512A (en) * | 2017-12-07 | 2018-05-15 | 巨浪(苏州)热水器有限公司 | A kind of water heater and descaling method that can remove incrustation scale automatically |
| CN114484412A (en) * | 2021-12-27 | 2022-05-13 | 广东纯米电器科技有限公司 | Scale detection method, system, heating apparatus, and computer-readable storage medium |
-
2002
- 2002-03-01 CN CN 02206687 patent/CN2537323Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101237797B (en) * | 2005-08-11 | 2010-07-21 | 奥特控制有限公司 | Scale detection on water heating elements |
| CN102138167A (en) * | 2009-03-12 | 2011-07-27 | 沃尔玛百货有限公司 | Time since brew indicator for beverage maker |
| CN104911885A (en) * | 2014-03-14 | 2015-09-16 | 佛山市顺德区美的电热电器制造有限公司 | Hanging ironing machine and control method thereof |
| CN105785847A (en) * | 2014-12-25 | 2016-07-20 | 陈闺艳 | Full automatic microcomputer-controlled water boiling device and production method thereof |
| CN108036512A (en) * | 2017-12-07 | 2018-05-15 | 巨浪(苏州)热水器有限公司 | A kind of water heater and descaling method that can remove incrustation scale automatically |
| CN114484412A (en) * | 2021-12-27 | 2022-05-13 | 广东纯米电器科技有限公司 | Scale detection method, system, heating apparatus, and computer-readable storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120301 Granted publication date: 20030226 |