CN101387125B - Electronic latrine - Google Patents
Electronic latrine Download PDFInfo
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- CN101387125B CN101387125B CN2008100278577A CN200810027857A CN101387125B CN 101387125 B CN101387125 B CN 101387125B CN 2008100278577 A CN2008100278577 A CN 2008100278577A CN 200810027857 A CN200810027857 A CN 200810027857A CN 101387125 B CN101387125 B CN 101387125B
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Abstract
The invention discloses an electronic squatting pan, which comprises a seat ring, a water spraying system and a blowing system. The water spraying system comprises a water heating unit, and the blowing system comprises an air channel, a heater positioned in the air channel, a blowing port positioned at the exit of the air channel, a blower driving outside air into the air channel over the heater and then out of a blowing port, and a controller for the blower and the heater; furthermore, the blowing system also comprises an air temperature sensor positioned on the way from the heater to the blowing port in the air channel. Air temperature signals of the sensor are input into the controller, the controller memorizes the value of the received air temperature signal at the set moment before each operation of the heater, and the heat power of the heater at this operation is the decreasing function of the temperature signal value. The electronic squatting pan overcomes the influence of the environment temperature on the output temperature of the system, simplifies the structure and reduces the manufacturing cost, the fault ratio and the maintenance cost.
Description
Technical field
The present invention relates to a kind of electric toilet seat that constitutes alleged " electronic water closet " among the standard GB 4706.53-2002 on the lavatory that is installed on, in International Patent Classification (IPC), classification can belong to E03D9/08.
Background technology
The raising that the temperature control requirement of electric toilet seat is requiring comfortableness along with people and improving.At present, the temperature of the water spray system of most of electric toilet seats and blower system (claiming " rinsing module " among the GB4706.53-2002) and seat ring (claiming " seat cushion " among the GB4706.53-2002) is open loop or simple closed loop heating power control, for example CN2302294, CN2319459, CN2555305 and CN2887981.Practical situation shows that the product of similar design is difficult to adapt to the spring, summer, autumn and winter environment temperature situation about changing by a relatively large margin.They are with the operation of same control gear, and it is too high in summer and situation that winter is low excessively makes the toilet user rather unhappy that its output temperature often takes place easily.Detect and heating power is controlled as usually environment temperature being set, then special environment temperature sensor and input circuit thereof need be arranged, thereby increase manufacturing cost with this according to Theory of Automatic Control.In addition, also will increase fault rate and maintenance cost because of circuit complicated.
Summary of the invention
Technical problem to be solved by this invention is, proposes a kind of electric toilet seat, and it is compared with prior art, can simpler structure and lower cost, more effectively overcome the influence of environment temperature to system's output temperature.
The technical scheme of technical solution problem of the present invention is that a kind of electric toilet seat comprises with the seat ring being body, water spray system and the blower system that uses the basis; Described water spray system comprises hot-water heating system; Described blower system comprises:
---the air channel;
---be positioned at the heater in air channel;
---be positioned at the blowing mouth of ducting outlet;
---drive outside air and enter that heater is skimmed in the air channel after the blower fan that blowing mouth blows out;
---the controller of blower fan and heater;
It is characterized in that: also be included in and be arranged in the air temperature sensor of heater in the air channel to position, blowing mouth way; The air temperature signal input controller of this sensor, the air temperature signal value that the regulation before the each work of controller memory heater is received constantly, the thermal power of this task of heater is the subtraction function of this temperature signal value.
Surrounding air is heated to the set point of temperature desired power to be directly proportional with the difference of environment temperature with this set point of temperature.The result that the thermal power of design heater work and detected environment temperature constitute the subtraction function relation is that heating power suitably reduced when environment temperature was high, otherwise then suitably increased, thereby overcame the influence of environment temperature to system's output temperature.This design is ingenious to have utilized the characteristics that environment temperature can not suddenly change within a certain period of time and the memory function of controller, and what be arranged in the air channel that heater to the air temperature sensor of position, blowing mouth way reflects when heater is not worked is environment temperature, the measured value of this moment is write down, sensor can be used instead when heater is worked in measuring hot air, reached effect with a sensor and 2 kinds of different temperatures of circuit measuring, compare with the design that generally 2 sensors and circuit need be set according to Theory of Automatic Control, simplify the structure significantly, reduce manufacturing cost, fault rate and maintenance cost.
One of modular design of this technical scheme is, is that time of the most close this task of heater in the following moment before the each work of described heater:
A) enter steady operation that time after the controller energising, and before working first to heater this moment at regular intervals those constantly;
B) heater after each end-of-job to heater at regular intervals those moment before the task again.
Wherein, controller is if there is a start button, then enter after its energising steady operation that constantly optimum be designed to start button action that time.According to the handling characteristics of electric toilet seat, because heater can not work in this moment usually immediately, to carve measures ambient temperature at this moment more convenient and reliable so design.According to the design of some cycles replication environment temperature, can make controller more in time the tracking environmental variation of temperature control.The designed time considers that heater is needing certain cool time after each end-of-job, makes the measured temperature of sensor more near environment temperature.According to the use of electric toilet seat and the characteristics of variation of ambient temperature, be preferably designed as 15min～30min this cycle time.
Two of the modular design of this technical scheme is that the thermal power when described hot-water heating system is worked and the temperature signal value of described memory constitute the subtraction function relation.Since the water source temperature also roughly with environment temperature positive correlation, this design makes the thermal power in hot-water heating system when work constitute subtraction function with environment temperature to concern, also help the stable control of output water temperature.
Three of the modular design of this technical scheme is, the input of described controller comprises that also the thermal power of heater work is instantaneous air temperature signal value and the difference of this setting value and the function of the air temperature signal value that described controller is remembered of air temperature sensor to be arranged in the setting of heater to the air themperature of position, blowing mouth way in the air channel.Described function is preferably following expression:
Pa＝Pao-Aa·Tn-Ka·(Ta-Tas)；
In the formula, Pa: the thermal power of heater work;
Pao: the setting thermal power of heater;
Tn: the air temperature signal value of described controller memory;
Ta: the instantaneous air temperature signal value of air temperature sensor;
Tas: in the air channel, being arranged in the setting value of heater to the air themperature of position, blowing mouth way;
Aa: coefficient;
Ka: coefficient.
This design is that output wind-warm syndrome enforcement closed loop and environment temperature are proofreaied and correct the control that combines, and can reach more stable temperature control effect, but not increase cost.
Four of the modular design of this technical scheme is, described seat ring has heater, and the thermal power of its work is the subtraction function of the air temperature signal value of described controller memory.
Two further design to modular design is that described hot-water heating system comprises the sensor of measuring output water temperature; The input of described controller also comprises the temperature signal of this cooling-water temperature sensor and to the setting of output water temperature, and the thermal power of described hot-water heating system work is the function of the air temperature signal value of the difference of the water temperature signal value of this cooling-water temperature sensor and setting value and the memory of described controller.Described function is preferably following expression:
Pw＝Pwo-Aw·Tn-Kw·(Tw-Tws)；
In the formula, Pw: the thermal power of hot-water heating system work;
Pwo: the setting thermal power of hot-water heating system;
Tn: the air temperature signal value of described controller memory;
Tw: the water temperature signal value of cooling-water temperature sensor;
Tws: to the setting value of output water temperature;
Aw: coefficient;
Kw: coefficient.
This design is that output water temperature enforcement closed loop and environment temperature are proofreaied and correct the control that combines, and can reach the temperature control effect that is more suitable for, and does not increase cost equally.
Four further design to modular design is that described seat ring heater comprises the sensor of measuring the seat ring temperature; The input of described controller also comprises the temperature signal of this sensor and the setting of seat ring temperature, and the thermal power of described seat ring heater work is temperature signal value and the difference of setting value and the function of the air temperature signal value that described controller is remembered of this sensor.Described function is preferably following expression:
Pt＝Pto-At·Tn-Kt·(Tt-Tts)；
In the formula, Pt: the thermal power of seat ring heater work;
Pto: the setting thermal power of seat ring heater;
Tn: the temperature signal value of described controller memory;
Tt: the temperature signal value of seat ring temperature pick up;
Tts: the setting value of counter race temperature;
At: coefficient;
Kt: coefficient.
This design is that the counter race temperature is implemented closed loop and environment temperature is proofreaied and correct the control that combines, and can reach the temperature control effect that is more suitable for, and does not increase cost equally.
Technical scheme of the present invention and effect will be further described in the specific embodiment in conjunction with the accompanying drawings.
Description of drawings
Fig. 1 is the frame for movement schematic diagram of embodiment of the invention electric toilet seat;
Fig. 2 is the blower system frame for movement schematic diagram of embodiment of the invention electric toilet seat;
Fig. 3 is an embodiment of the invention electric toilet seat control circuit block diagram;
Fig. 4 is an embodiment of the invention electric toilet seat Temperature Measure Control program flow diagram.
The specific embodiment
Embodiment of the invention electric toilet seat mainly is the improvement to prior art products.Machinery that prior art products is newer and complete and electrical structure are found in the application for a patent for invention file CN101082231 (application on May 30th, 2007, on December 5th, 2007 is open) of TOTO Ltd..The prior art related content of required application in the embodiment of the invention does not have record in present specification, can be referring to this document etc.
The frame for movement of embodiment of the invention electric toilet seat is as depicted in figs. 1 and 2:
Electric toilet seat serve as to use in the body 1 on basis water spray mechanical system 10, blowing mechanical system 20 and cyclelog 30 are installed with seat ring 2.The line traffic control operator 31 that cyclelog 30 is arranged outside the body 1.Operator 31 has the button 38 of startup and temperature is set button 39 etc.Certainly, operator also can be designed as the remote controller with the wireless contact of main frame.
Water spray mechanical system 10 is main to be equipped with water tank 12, water pump 13 and the water jet 14 of the electrothermal tube 11 of wind spring shape and to be formed between them and with the connecting line at water source 19 by interior successively.From the water at water source 19 enter water tank 12 by electrothermal tube 11 heating after, through water pump 13 pressurizations after water jet 14 ejections.The detection water tank cooling-water temperature sensor 15 of temperature herein also is installed in the position of water tank 12 close its delivery ports, is generally and is placed in occasionally semiconductor diode probe of the interior thermoelectricity of stainless steel tube.
Blowing mechanical system 20 is formed by the heating wire 21 of centrifugal fan 22, screw winding and coral shape blowing mouth 23 and the air channel 24 that they couple together successively.Be arranged in heating wire 21 and be equipped with one to position, blowing mouth 23 way and measure the air-temperature sensor 25 of air themperature herein in air channel 24, the thermoelectricity that is generally a plastic packaging is the semiconductor diode probe occasionally.During blower fan 22 running, outside air sucks from the air intake 26 of blower fan 22 center of rotation, and the air-flow that blower fan 22 is discharged at first skims over heating wire 21, skims over the probe of sensor 25 then, after blowing mouth 23 blow out.
In the present embodiment blowing mechanical system, blower fan 22 is positioned at the upstream of air flow system, and its benefit is that operating temperature is lower; But also can be in response to the concrete structure design and installation in other position, for example between heating wire 21 and sensor probe 25, perhaps between sensor probe 25 and the blowing mouth 23.
Embodiment of the invention electric toilet seat control circuit is as shown in Figure 3:
Mechanical system controls to water spray mechanical system and blowing is to be the cyclelog 30 of core with the single-chip microcomputer with self-editing control program, and it mainly comprises single-chip microcomputer 32 (model: S3P9228) and drive circuit 33.
Drive circuit 33 comprises that 5 I/O mouths by single-chip microcomputer 32 trigger each 1 road bidirectional thyristor of control.The 1st I/O mouth triggers the bidirectional thyristor driving electrothermal tube 11 of control, the 2nd I/O mouth triggers the bidirectional thyristor driving water pump 13 of control, the 3rd I/O mouth triggers the bidirectional thyristor driving heating wire 21 of control, the bidirectional thyristor of the 4th I/O mouth triggering control drives the bidirectional thyristor driving blower fan 22 that 3, the 5 I/O mouths of Electric radiant Heating Film trigger control.In addition, single-chip microcomputer 32 also is useful on the motion of water jet and air outlet, and some I/O mouth (not shown)s of controls such as demonstration, communication and protection, can directly or through drive circuit connect respective load.
5 I/O mouths of single-chip microcomputer 32 receiving inputted signals connect the output of the startup button 38 and the setting button 39 of cooling-water temperature sensor 15, air-temperature sensor 25, seat temperature sensor 4, operator 31 respectively.In addition, single-chip microcomputer 32 connects other sensor in addition or receives some I/O mouth (not shown)s that other communication is imported.
Embodiment of the invention electric toilet seat is to the measurement control program flow process of temperature as shown in Figure 4:
Setting button 39 actions of operator 31, through I/O mouth that it connected to single-chip microcomputer 32 output useful signals, single-chip microcomputer 32 and enter the program selecting state, selected comprising to serviceability temperature, be designated as Tas (being failure to actuate as setting button 39, is setting value with the default value); Thereafter if start button 38 actions; Its output circuit will move (step 101,103) by selection procedure; Operator also can be designed as for the user only the individual palpation key that has the startup button concurrently and set keypress function, the panel and the operation of the device that can simplify the operation greatly.Electric toilet seat can also be designed to only have the what is called " user-friendly camera " of a power switch, and its cyclelog enters steady-working state automatically in power switch is connected the back several seconds.
Begin from heating wire 21 end-of-jobs, single-chip microcomputer 32 is every 15min～30min (being preferably 20min), the numerical value of the I/O mouth that connects sensor probe 25 read in once, and the numerical value of original memory is upgraded; Until heating wire 21 (step 109,110) till the task (trigger control drive the I/O mouth of bidirectional thyristor of heating wire 21 effective) again.
The bidirectional thyristor that drives heating wire 21 is triggered the 3rd the I/O mouth of controlling, and the heating power Pa of the heating wire 21 that its output signal is controlled is that the setting value Tas of the ambient temperature value Tn with up-to-date memory, the up-to-date hot stream temperature value Ta that measures and output gas flow temperature tries to achieve (step 108) for the following formula of people:
Pa＝η·ρ·C·Q·(Tas-Tn)-Ka·(Ta-Tas)；
In the formula, Pa: heating power;
η: efficient;
ρ: atmospheric density;
C: air specific heat;
Q: air mass flow (air quantity);
Tas: the setting value of output gas flow temperature;
Tn: the ambient temperature value of up-to-date memory;
Ta: hot stream temperature value;
Ka: coefficient (W/K).
Each amount all adopts international unit in the formula.Wherein Ka is controller is implemented close-loop automatic adjustment to the deviation of hot stream temperature and desired temperature a coefficient.When it was constant, belonging to ratio had difference to regulate.Can also add deviation time differential and integration to this coefficient, implement so-called PID and regulate, regulate to shorten the adjusting time and to reach indifference.Because less and working time of time constant is shorter, the effect that PID regulates can be difficult to manifest, and handles bad even runs counter to desire.
From above-mentioned formula as can be seen, the present invention implements the measurement and the correction of environment temperature dexterously, and when it raises, the input power of heating wire 21 will reduce environment temperature as unitary variant, otherwise then increases, and promptly constitutes so-called subtraction function relation.Wherein if η, ρ, C and Q are constant, this subtraction function is a linear function, otherwise is nonlinear function.This is proofreaied and correct in automatic measurement and close-loop automatic adjustment to output temperature, weakens topmost interference especially targetedly---the influence of environment temperature, and significantly reduce and regulate deviation, shown simple and practical advantage.
The 1st I/O mouth triggers the bidirectional thyristor driving electrothermal tube 11 of control, the measured value Tn that also can utilize above-mentioned environment temperature carries out the subtraction function control of similar above-mentioned air themperature to its operating power, to alleviate the influence of with the positively related water source of environment temperature temperature water temperature being controlled effect usually.The heating power Pw of the electrothermal tube 11 that the output signal of this I/O mouth is controlled is that the setting value Tws of the ambient temperature value Tn with up-to-date memory, the up-to-date water tank water temperature T w that measures and water tank output water temperature tries to achieve for the following formula of people:
Pw＝η·Aw·Sw·(Tws-Tn)-Kw·(Tw-Tws)；
In the formula, Pw: heating power;
η: efficient;
Aw: average coefficient of heat transfer;
Sw: equivalent area of dissipation;
Tws: the setting value of water tank output water temperature;
Tn: the ambient temperature value of up-to-date memory;
Tw: the up-to-date water tank water temperature that measures;
Kw: coefficient (W/K).
Each amount all adopts international unit in the formula.Wherein Kw is controller is implemented close-loop automatic adjustment to the deviation of water temperature and its setting value a coefficient, have the difference adjusting for suitable constant enforcement ratio except that getting it, because water tank heat capacity is bigger, preferably add deviation time differential and integral operation, implement PID and regulate, can shorten the adjusting time and reach indifference and regulate.
From above-mentioned formula as can be seen, the present invention implements the measurement and the correction of environment temperature dexterously to water temperature, and when it raises, the input power of electrothermal tube 11 will reduce environment temperature as unitary variant, otherwise then increases, and promptly constitutes so-called subtraction function relation.Wherein if η, Aw and Sw are constant, this subtraction function is a linear function, otherwise is nonlinear function.This is proofreaied and correct in automatic measurement and close-loop automatic adjustment to water temperature, also weakens topmost interference---the influence of environment temperature especially targetedly, significantly reduces and regulates deviation, has shown simple and practical advantage.
Relevant measurement control program flow process to the water tank water temperature can obtain with reference to figure 4, mainly is wherein setting program to be read in Tas change Tws into, and 1s increases and reads cooling-water temperature sensor Tw at interval, and the formula of heating power Pa is revised as the formula of above-mentioned Pw.
The 4th I/O mouth triggers the bidirectional thyristor driving Electric radiant Heating Film 3 of control, can utilize the measured value Tn of above-mentioned environment temperature that its operating power is carried out the subtraction function control of similar above-mentioned water tank water temperature equally, to alleviate the influence of environment temperature counter race temperature control effect.The heating power Pt of the Electric radiant Heating Film 3 that the output signal of this I/O mouth is controlled is that the setting value Tts of the ambient temperature value Tn with up-to-date memory, the up-to-date seat ring temperature T t that measures and seat ring temperature tries to achieve for the following formula of people:
Pt＝η·At·St·(Tts-Tn)-Kt·(Tt-Tts)；
In the formula, Pt: heating power;
η: efficient;
At: average coefficient of heat transfer;
St: equivalent area of dissipation;
Tts: the setting value of seat ring temperature;
Tn: the ambient temperature value of up-to-date memory;
Tt: the up-to-date seat ring temperature that measures;
Kt: coefficient (W/K).
Each amount all adopts international unit in the formula.Wherein Kt is the coefficient of the deviation enforcement close-loop automatic adjustment of controller counter race temperature and its setting value, have the difference adjusting for suitable constant enforcement ratio except that getting it, because seat ring also has certain heat capacity, suitably add deviation time differential and integral operation, implement PID and regulate, also can shorten the adjusting time and reach indifference and regulate.
From above-mentioned formula as can be seen, counter race temperature of the present invention is implemented the measurement and the correction of environment temperature dexterously, and when it raises, the input power of Electric radiant Heating Film 3 will reduce environment temperature as unitary variant, otherwise then increases, and promptly constitutes so-called subtraction function relation.Wherein if η, At and St are constant, this subtraction function is a linear function, otherwise is nonlinear function.This is proofreaied and correct in the automatic measurement and close-loop automatic adjustment of counter race temperature, weakens topmost interference---the influence of environment temperature equally especially targetedly, significantly reduces and regulates deviation, has shown simple and practical advantage.
The measurement control program flow process of counter race temperature equally can similar above-mentioned water tank water temperature measurement control, obtain with reference to figure 4.
Claims (12)
1. an electric toilet seat comprises with the seat ring being to use body, the blower system on basis and have the water spray system of hot-water heating system; Blower system comprises:
---the air channel;
---be positioned at the heater in air channel;
---be positioned at the blowing mouth of ducting outlet;
---drive outside air and enter that heater is skimmed in the air channel after the blower fan that blowing mouth blows out;
---the controller of blower fan and heater;
It is characterized in that: also be included in and be arranged in the air temperature sensor of heater in the air channel to position, blowing mouth way; The air temperature signal input controller of this sensor, the air temperature signal value that the setting before the each work of controller memory heater is received constantly, the thermal power of this task of heater is the subtraction function of this temperature signal value.
2. according to the described electric toilet seat of claim 1, it is characterized in that: the setting before the each work of described heater is that time of the most close this task of heater in the following moment constantly:
A) enter steady operation that time after the controller energising, and before working first to heater this moment at regular intervals those constantly;
B) heater after each end-of-job to heater at regular intervals those moment before the task again.
3. according to the described electric toilet seat of claim 2, it is characterized in that: described controller has the startup button, and described controller enters steady operation that time and is this startup actuation of keys that time.
4. according to the described electric toilet seat of claim 2, it is characterized in that: described certain hour is 15min～30min.
5. according to claim 1 or claim 2 or claim 3 or the described electric toilet seat of claim 4, it is characterized in that: the thermal power of described hot-water heating system work is the subtraction function of the air temperature signal value of described controller memory.
6. according to claim 1 or claim 2 or claim 3 or the described electric toilet seat of claim 4, it is characterized in that: the input of described controller comprises that also the thermal power of heater work is instantaneous air temperature signal value and the difference of this setting value and the function of the air temperature signal value that described controller is remembered of air temperature sensor to be arranged in the setting of heater to the air themperature of position, blowing mouth way in the air channel.
7. according to the described electric toilet seat of claim 6, it is characterized in that: described function is a following expression:
Pa＝Pao-Aa·Tn-Ka·(Ta-Tas)；
In the formula, Pa: the thermal power of heater work;
Pao: the setting thermal power of heater;
Tn: the air temperature signal value of described controller memory;
Ta: the instantaneous air temperature signal value of air temperature sensor;
Tas: in the air channel, being arranged in the setting value of heater to the air themperature of position, blowing mouth way;
Aa: coefficient;
Ka: coefficient.
8. according to the described electric toilet seat of claim 5, it is characterized in that: described hot-water heating system comprises the sensor of measuring output water temperature; The input of described controller also comprises the temperature signal of this cooling-water temperature sensor and to the setting of output water temperature, and the thermal power of described hot-water heating system work is the function of the air temperature signal value of the difference of the water temperature signal value of this cooling-water temperature sensor and setting value and the memory of described controller.
9. according to the described electric toilet seat of claim 8, it is characterized in that: described function is a following expression:
Pw＝Pwo-Aw·Tn-Kw·(Tw-Tws)；
In the formula, Pw: the thermal power of hot-water heating system work;
Pwo: the setting thermal power of hot-water heating system;
Tn: the air temperature signal value of described controller memory;
Tw: the water temperature signal value of cooling-water temperature sensor;
Tws: to the setting value of output water temperature;
Aw: coefficient;
Kw: coefficient.
10. according to claim 1 or claim 2 or claim 3 or the described electric toilet seat of claim 4, it is characterized in that: described seat ring has heater, and the thermal power of its work is the subtraction function of the air temperature signal value of described controller memory.
11. according to the described electric toilet seat of claim 10, it is characterized in that: described seat ring heater comprises the sensor of measuring the seat ring temperature; The input of described controller also comprises the temperature signal of this sensor and the setting of seat ring temperature, and the thermal power of described seat ring heater work is temperature signal value and the difference of setting value and the function of the air temperature signal value that described controller is remembered of this sensor.
12. according to the described electric toilet seat of claim 11, it is characterized in that: described function is a following expression:
Pt＝Pto-At·Tn-Kt·(Tt-Tts)；
In the formula, Pt: the thermal power of seat ring heater work;
Pto: the setting thermal power of seat ring heater;
Tn: the temperature signal value of described controller memory;
Tt: the temperature signal value of seat ring temperature pick up;
Tts: the setting value of counter race temperature;
At: coefficient;
Kt: coefficient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100278577A CN101387125B (en) | 2008-04-30 | 2008-04-30 | Electronic latrine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100278577A CN101387125B (en) | 2008-04-30 | 2008-04-30 | Electronic latrine |
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| Publication Number | Publication Date |
|---|---|
| CN101387125A CN101387125A (en) | 2009-03-18 |
| CN101387125B true CN101387125B (en) | 2010-07-28 |
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|---|---|---|---|
| CN2008100278577A Active CN101387125B (en) | 2008-04-30 | 2008-04-30 | Electronic latrine |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644311B (en) * | 2012-04-05 | 2015-09-23 | 浙江怡和卫浴有限公司 | The furnace drying method of intelligent water toilet pan drying system |
| CN103519743B (en) | 2012-07-05 | 2016-08-10 | 上海科勒电子科技有限公司 | A kind of bowl device for toilet being applied to toilet seat |
| CN107844148A (en) * | 2016-09-20 | 2018-03-27 | 松下家电研究开发（杭州）有限公司 | A kind of Intelligent toilet seat |
| CN107740479A (en) * | 2017-11-21 | 2018-02-27 | 韦和生 | It is a kind of that there is flushing, the toilet seat of drying function |
| CN107761891A (en) * | 2017-11-21 | 2018-03-06 | 韦和生 | Toilet seat with flushing, drying function |
| CN112471953B (en) * | 2019-09-12 | 2022-06-17 | 松下家电(中国)有限公司 | Toilet seat |
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Address after: 529040 No. 336 Qing Lan Road, hi tech Development Zone, Guangdong, Jiangmen Patentee after: Hanyu Group Co., Ltd. Address before: 529040 No. 336 Qing Lan Road, hi tech Development Zone, Guangdong, Jiangmen Patentee before: Jiangmen Idear-hanyu Electrical Joint-stock Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |