CN204626593U - A kind of water outlet anti-scalding protection device of the electronic toilet - Google Patents
A kind of water outlet anti-scalding protection device of the electronic toilet Download PDFInfo
- Publication number
- CN204626593U CN204626593U CN201520310729.9U CN201520310729U CN204626593U CN 204626593 U CN204626593 U CN 204626593U CN 201520310729 U CN201520310729 U CN 201520310729U CN 204626593 U CN204626593 U CN 204626593U
- Authority
- CN
- China
- Prior art keywords
- resistance
- output
- triode
- temperature
- comparator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
Abstract
The utility model discloses a kind of water outlet anti-scalding protection device of the electronic toilet, comprise for the temperature pick up of detected electrons water closet output water temperature, temperature comparison circuit, power output circuit and action component; The output of temperature pick up is connected to the input of temperature comparison circuit, the output of temperature comparison circuit is connected to power output circuit, power output circuit connecting moves parts, utilize this action component at leaving water temperature higher than the loop cutting off water closet heater block during preset value.The utility model can detect in real time to the output water temperature of water closet, and when control system occurs abnormal, can cut off the loop of heater block in time, avoid heater block continuous heating, cause water temperature over-high and scald user.
Description
Technical field
The utility model relates to a kind of anti-scalding protection device, particularly relates to a kind of water outlet anti-scalding protection device of the electronic toilet.
Background technology
The electronic toilet many employings control system (single-chip microcomputer) of prior art coordinates controllable silicon to carry out computer heating control to heating tube, when control system occurs abnormal, then only relies on temperature detect switch (TDS) to carry out overheat protector.But the temperature set by temperature detect switch (TDS) is generally higher than the receptible temperature of people, and reflecting time also can be slow, therefore, rely on merely temperature detect switch (TDS) to carry out overheat protector there is water temperature over-high and scald the danger of user.In addition, when temperature switch also lost efficacy, heating tube can heat the risk causing rats after severe scald burn user always.
Utility model content
The utility model provides a kind of water outlet anti-scalding protection device of the electronic toilet; it can detect the output water temperature of water closet in real time; and in water temperature higher than the power supply cutting off water closet heater block during preset value in time, thus overcome the weak point described in background technology.
The utility model solves the technical scheme that its technical problem adopts: a kind of water outlet anti-scalding protection device of the electronic toilet, comprises for the temperature pick up of detected electrons water closet output water temperature, temperature comparison circuit, power output circuit and action component; The output of temperature pick up is connected to the input of temperature comparison circuit, the output of temperature comparison circuit is connected to power output circuit, power output circuit connecting moves parts, utilize this action component at leaving water temperature higher than the loop cutting off water closet heater block during preset value.
In one embodiment, described temperature comparison circuit comprises comparator, the first resistance, the second resistance and the 3rd resistance; The in-phase input end of comparator connects the positive pole of described temperature pick up, and the power end of comparator is for connecting the positive pole of power supply, and the ground end of comparator and the negative pole of described temperature pick up distinguish ground connection, and the output of comparator is connected to described power output circuit; Between the positive pole that first resistance is connected to described temperature pick up and the power end of comparator, the second resistance is connected between the power end of comparator and reverse input end, and an end of the 3rd resistance is connected to the reverse input end of comparator, other end ground connection.
In one embodiment, described action component is controllable silicon output photoelectric coupler, and the positive pole of the importation of this controllable silicon output photoelectric coupler connects described power output circuit, and negative pole connects the control pin of the single-chip microcomputer for controlling described heater block; The output of this controllable silicon output photoelectric coupler connects a silicon controlled controlled stage, and this silicon controlled anode and negative pole access the loop of described heater block respectively.
In one embodiment, described action component is relay, a wherein coil input end of this relay connects described power output circuit, and another coil input end is for connecting the positive pole of power supply, and the heater block of described water closet passes through movable contact and the stationary contact connection external power source of this relay.
In one embodiment, described power output circuit comprises the first triode, the second triode, the 4th resistance and the 5th resistance, the ground level of the first triode connects the output of described temperature comparison circuit, emitting stage ground connection, and colelctor electrode connects the ground level of the second triode by the 5th resistance; The emitting stage of the second triode is for connecting the positive pole of power supply, and colelctor electrode connects the positive pole of the importation of described controllable silicon output photoelectric coupler; 4th resistance is connected between the emitting stage of the second triode and the ground level of the second triode.
In one embodiment, described power output circuit comprises the first triode, and the ground level of this first triode connects the output of described temperature comparison circuit, emitting stage ground connection, and colelctor electrode connects a wherein coil input end of described relay.
In one embodiment, described power output circuit also comprises the 6th resistance, between the ground level that the 6th resistance is connected to described first triode and the output of described temperature comparison circuit.
In one embodiment, state power output circuit and also comprise the 6th resistance, between the ground level that the 6th resistance is connected to described first triode and the output of described temperature comparison circuit.
In one embodiment, described temperature comparison circuit also comprises the 7th resistance and the first electric capacity, and the 7th resistance is connected between the in-phase input end of described comparator and the positive pole of described temperature pick up; First electric capacity and described temperature pick up are connected in parallel.
In one embodiment, also comprise the second electric capacity and the 3rd electric capacity, this second electric capacity and the 3rd Capacitance parallel connection are connected between the two ends of described power supply, the minus earth of described power supply.
Compared to prior art, the utility model has following beneficial effect:
The hardware circuit that the utility model adopts temperature pick up, temperature comparison circuit, power output circuit and action component to form, independent of the heating control system of the electronic toilet of prior art, output water temperature is detected in real time, and can when control system occurs abnormal, the loop of timely cut-out heater block, avoid heater block continuous heating, cause water temperature over-high and scald user;
The features such as it is simple, practical that the utility model also has circuit structure, and cost is low.
Below in conjunction with drawings and Examples, the utility model is described in further detail; But the water outlet anti-scalding protection device of a kind of the electronic toilet of the present utility model is not limited to embodiment.
Accompanying drawing explanation
Fig. 1 is embodiment one theory diagram of the present utility model;
Fig. 2 is embodiment one electrical block diagram of the present utility model;
Fig. 3 is embodiment two electrical block diagram of the present utility model.
Detailed description of the invention
Embodiment one
Refer to shown in Fig. 1, Fig. 2, the water outlet anti-scalding protection device of a kind of the electronic toilet of the present utility model, comprise for the temperature pick up 1 of detected electrons water closet output water temperature, temperature comparison circuit 2, power output circuit 3 and action component 4; The output of temperature pick up 1 is connected to the input of temperature comparison circuit 2, the output of temperature comparison circuit 2 is connected to power output circuit 3, power output circuit 3 connecting moves parts 4, utilize this action component 4 at leaving water temperature higher than the loop cutting off water closet heater block (this heater block is specially heating tube) during preset value.
In the present embodiment, described temperature comparison circuit 2 comprises comparator IC1, the first resistance R1, the second resistance R2 and the 3rd resistance R3; The in-phase input end of comparator IC1 connects the positive pole of described temperature pick up 1, the power end of comparator IC1 connects the positive pole of power supply, the ground end of comparator IC1 and the negative pole of described temperature pick up 1 ground connection respectively, the output of comparator IC1 is connected to described power output circuit 3.Between the positive pole that first resistance R1 is connected to described temperature pick up 1 and the power end of comparator IC1, between the power end that second resistance R2 is connected to comparator IC1 and reverse input end, one end of the 3rd resistance R3 is connected to the reverse input end of comparator IC1, other end ground connection.
In the present embodiment, described action component 4 is controllable silicon output photoelectric coupler U1 (hereinafter referred to as optocoupler U1), its model is M0C3063, the importation of this optocoupler U1 is light emitting diode, the positive pole of this light emitting diode connects described power output circuit 3, and negative pole connects the control pin of the single-chip microcomputer for controlling described heater block; The output of this optocoupler U1 is light-operated bidirectional triode thyristor, and it connects a silicon controlled controlled stage, and this silicon controlled anode and negative pole access the loop of described heater block respectively.
In the present embodiment, described power output circuit 3 comprises the first triode Q1, the second triode Q2, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6.First triode Q1 is specially NPN type triode, second triode Q2 is then PNP type triode, the ground level of this first triode Q1 connects the output (i.e. the output of comparator IC1) of described temperature comparison circuit 2, emitting stage ground connection, colelctor electrode connects the ground level of the second triode Q2 by the 5th resistance R5; The emitting stage of the second triode Q2 is for connecting the positive pole of power supply, and colelctor electrode connects the positive pole of the importation of described optocoupler U1; 4th resistance R4 is connected between the emitting stage of the second triode Q2 and the ground level of the second triode Q2; 6th resistance R6 is connected between the ground level of described first triode Q1 and the output (i.e. the output of comparator IC1) of described temperature comparison circuit 2.
In the present embodiment, described temperature comparison circuit 2 also comprises the 7th resistance R7 and the first electric capacity C1, between the in-phase input end that the 7th resistance R7 is connected to described comparator IC1 and the positive pole of described temperature pick up 1; First electric capacity C1 and described temperature pick up 1 are connected in parallel.
In the present embodiment, the utility model also comprises the second electric capacity C2 and the 3rd electric capacity C3, and this second electric capacity C2 and the 3rd electric capacity C3 is connected in parallel between the two ends of described power supply, carries out filtering to described power supply.Described power supply is specially 5V power supply, its minus earth.
The water outlet anti-scalding protection device of a kind of the electronic toilet of the present utility model, in Fig. 2, parts CH1, CH2 are interface unit, are respectively used to connect 5V power supply and temperature pick up 1.
During work, the water temperature of the delivery port of temperature pick up 1 pair of water storage tank for water closet detects in real time, and after temperature signal is converted to voltage signal, inputing to the input in the same way of comparator IC1, the reference voltage that the second resistance R2 and the 3rd resistance R3 is formed is inputted by the reverse input end of comparator IC1.The temperature detected due to temperature pick up 1 is higher, its resistance is less, corresponding voltage is lower, and conversely, its voltage is higher, illustrate that the temperature that temperature pick up 1 detects is lower, thus, two kinds of voltages compare in comparator IC1 inside, if the voltage of temperature pick up 1 is higher than reference voltage, then comparator IC1 exports high level, makes the first triode Q1 and the second triode Q2 conducting respectively.Now, if for the control pin output low level of the single-chip microcomputer that controls water closet heating tube, then the importation of optocoupler U1 normally works, and makes its output triggering and conducting, controlled silicon conducting, heating tube normal heating; If the control pin of single-chip microcomputer exports high level (the control pin of single-chip microcomputer exports high level or low level is controlled by user), then optocoupler U1 cisco unity malfunction, accordingly, heating tube does not heat.If the voltage of temperature pick up 1 is lower than reference voltage, then comparator IC1 output low level, the first triode Q1 and the second triode Q2 is ended respectively, and the positive pole of the importation of optocoupler U1 and the positive pole of power supply disconnect.Now, if the single-chip microcomputer for controlling water closet heating tube occurs abnormal, it is made to control pin output low level all the time, then optocoupler U1 can not normally work, thus controllable silicon cannot conducting, and heating tube cannot normal heating, thus avoids heating tube continuous heating cause water temperature over-high and scald user.
Embodiment two
Shown in Figure 3, the difference of itself and embodiment one is: described action component 4 is relay J K open in usual, a wherein coil input end of this relay J K connects described power output circuit 3, another coil input end connects the positive pole of power supply, and the heater block of described water closet passes through movable contact and the stationary contact connection external power source of this relay J K.Specifically, this relay J K comprises two groups of contacts, and wherein the movable contact of one group of contact is connected the live wire of civil power and the live wire of heating tube respectively with stationary contact, and the movable contact that another group is touched is connected the zero line of civil power and the zero line of heating tube respectively with stationary contact.
In the present embodiment, described power output circuit 3 comprises the first triode Q1 and the 6th resistance R6, and this first triode Q1 is NPN type triode, and its ground level connects the output of described temperature comparison circuit 2, emitting stage ground connection, colelctor electrode connects a wherein coil input end of described relay J K; 6th resistance R6 is connected between the ground level of described first triode Q1 and the output (i.e. the output of comparator IC1) of described temperature comparison circuit 2.
The water outlet anti-scalding protection device of a kind of the electronic toilet of the present utility model; during work; the water temperature of the delivery port of temperature pick up 1 pair of water storage tank for water closet detects in real time; and after temperature signal is converted to voltage signal, inputing to the input in the same way of comparator IC1, the reference voltage that the second resistance R2 and the 3rd resistance R3 is formed is inputted by the reverse input end of comparator IC1.The temperature detected due to temperature pick up 1 is higher, and its resistance is less, and corresponding voltage is lower, conversely, its voltage is higher, illustrates that the temperature that temperature pick up 1 detects is lower, thus, two kinds of voltages compare in comparator IC1 inside, if the voltage of temperature pick up 1 is higher than reference voltage, then comparator IC1 exports high level, makes the first triode Q1 conducting, thus making two groups of contacts adhesive respectively of relay J K, heating tube access civil power heats.If the voltage of temperature pick up 1 is lower than reference voltage, then comparator IC1 output low level, makes the first triode Q1 end, thus two of relay J K groups of contacts are disconnected respectively, and heating tube stops heating.Thus, be namely used in the single-chip microcomputer controlling water closet heating tube and occur abnormal, heating tube also can not continuous heating, thus avoids causing water temperature over-high and scald user, and is conducive to energy-conservation.
Above-described embodiment is only used for further illustrating the water outlet anti-scalding protection device of a kind of the electronic toilet of the present utility model; but the utility model is not limited to embodiment; every above embodiment is done according to technical spirit of the present utility model any simple modification, equivalent variations and modification, all fall in the protection domain of technical solutions of the utility model.
Claims (10)
1. a water outlet anti-scalding protection device for the electronic toilet, is characterized in that: comprise for the temperature pick up of detected electrons water closet output water temperature, temperature comparison circuit, power output circuit and action component; The output of temperature pick up is connected to the input of temperature comparison circuit, the output of temperature comparison circuit is connected to power output circuit, power output circuit connecting moves parts, utilize this action component at leaving water temperature higher than the loop cutting off water closet heater block during preset value.
2. the water outlet anti-scalding protection device of the electronic toilet according to claim 1, is characterized in that: described temperature comparison circuit comprises comparator, the first resistance, the second resistance and the 3rd resistance; The in-phase input end of comparator connects the positive pole of described temperature pick up, and the power end of comparator is for connecting the positive pole of power supply, and the ground end of comparator and the negative pole of described temperature pick up distinguish ground connection, and the output of comparator is connected to described power output circuit; Between the positive pole that first resistance is connected to described temperature pick up and the power end of comparator, the second resistance is connected between the power end of comparator and reverse input end, and an end of the 3rd resistance is connected to the reverse input end of comparator, other end ground connection.
3. the water outlet anti-scalding protection device of the electronic toilet according to claim 1, it is characterized in that: described action component is controllable silicon output photoelectric coupler, the positive pole of the importation of this controllable silicon output photoelectric coupler connects described power output circuit, and negative pole connects the control pin of the single-chip microcomputer for controlling described heater block; The output of this controllable silicon output photoelectric coupler connects a silicon controlled controlled stage, and this silicon controlled anode and negative pole access the loop of described heater block respectively.
4. the water outlet anti-scalding protection device of the electronic toilet according to claim 1; it is characterized in that: described action component is relay; a wherein coil input end of this relay connects described power output circuit; another coil input end is for connecting the positive pole of power supply, and the heater block of described water closet passes through movable contact and the stationary contact connection external power source of this relay.
5. the water outlet anti-scalding protection device of the electronic toilet according to claim 3, it is characterized in that: described power output circuit comprises the first triode, the second triode, the 4th resistance and the 5th resistance, the ground level of the first triode connects the output of described temperature comparison circuit, emitting stage ground connection, colelctor electrode connects the ground level of the second triode by the 5th resistance; The emitting stage of the second triode is for connecting the positive pole of power supply, and colelctor electrode connects the positive pole of the importation of described controllable silicon output photoelectric coupler; 4th resistance is connected between the emitting stage of the second triode and the ground level of the second triode.
6. the water outlet anti-scalding protection device of the electronic toilet according to claim 4; it is characterized in that: described power output circuit comprises the first triode; the ground level of this first triode connects the output of described temperature comparison circuit; emitting stage ground connection, colelctor electrode connects a wherein coil input end of described relay.
7. the water outlet anti-scalding protection device of the electronic toilet according to claim 5, is characterized in that: described power output circuit also comprises the 6th resistance, between the ground level that the 6th resistance is connected to described first triode and the output of described temperature comparison circuit.
8. the water outlet anti-scalding protection device of the electronic toilet according to claim 6, is characterized in that: described power output circuit also comprises the 6th resistance, between the ground level that the 6th resistance is connected to described first triode and the output of described temperature comparison circuit.
9. the water outlet anti-scalding protection device of the electronic toilet according to claim 2, it is characterized in that: described temperature comparison circuit also comprises the 7th resistance and the first electric capacity, the 7th resistance is connected between the in-phase input end of described comparator and the positive pole of described temperature pick up; First electric capacity and described temperature pick up are connected in parallel.
10. the water outlet anti-scalding protection device of the electronic toilet according to claim 2 or 4 or 5; it is characterized in that: also comprise the second electric capacity and the 3rd electric capacity; this second electric capacity and the 3rd Capacitance parallel connection are connected between the two ends of described power supply, the minus earth of described power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520310729.9U CN204626593U (en) | 2015-05-14 | 2015-05-14 | A kind of water outlet anti-scalding protection device of the electronic toilet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520310729.9U CN204626593U (en) | 2015-05-14 | 2015-05-14 | A kind of water outlet anti-scalding protection device of the electronic toilet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204626593U true CN204626593U (en) | 2015-09-09 |
Family
ID=54045637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520310729.9U Expired - Fee Related CN204626593U (en) | 2015-05-14 | 2015-05-14 | A kind of water outlet anti-scalding protection device of the electronic toilet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204626593U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932640A (en) * | 2016-07-04 | 2016-09-07 | 安徽省宁国市天宇电器有限公司 | Over-temperature protection device for intelligent sanitary appliance |
| CN108951792A (en) * | 2017-05-17 | 2018-12-07 | 爱信精机株式会社 | Sanitary washing equipment |
| CN109577441A (en) * | 2017-09-28 | 2019-04-05 | Toto株式会社 | Hygienic washing device |
-
2015
- 2015-05-14 CN CN201520310729.9U patent/CN204626593U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932640A (en) * | 2016-07-04 | 2016-09-07 | 安徽省宁国市天宇电器有限公司 | Over-temperature protection device for intelligent sanitary appliance |
| CN108951792A (en) * | 2017-05-17 | 2018-12-07 | 爱信精机株式会社 | Sanitary washing equipment |
| CN108951792B (en) * | 2017-05-17 | 2020-06-30 | 爱信精机株式会社 | Sanitary cleaning device |
| CN109577441A (en) * | 2017-09-28 | 2019-04-05 | Toto株式会社 | Hygienic washing device |
| CN109577441B (en) * | 2017-09-28 | 2020-10-09 | Toto株式会社 | Sanitary washing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205545180U (en) | Short -circuit protection circuit and power supply device | |
| CN204167871U (en) | A kind of Aftercurrent protection circuit breaker | |
| CN204626593U (en) | A kind of water outlet anti-scalding protection device of the electronic toilet | |
| CN203561857U (en) | Low-power standby control system | |
| CN203561847U (en) | Standby circuit control system with low power consumption | |
| CN204290268U (en) | A kind of protective circuit | |
| CN203870427U (en) | Low-electricity consumption control circuit in standby state | |
| CN202975669U (en) | Low standby power-consumption control circuit | |
| CN103364688B (en) | Three-jack socket electric leakage detection circuit | |
| CN204721326U (en) | A kind of hardware time-delay reset circuit and electronic product | |
| CN208092205U (en) | A kind of closed-loop detection circuit for detecting relay output state | |
| CN204145288U (en) | A kind of Switching Power Supply start-up circuit | |
| CN207835033U (en) | A kind of circuit reducing product stand-by power consumption | |
| CN203338173U (en) | Welding machine protection circuit based on thermistor | |
| CN108767974A (en) | A kind of power supply automatic switchover circuit of charged pool undervoltage turnoff | |
| CN205029317U (en) | Electric electrical shutoff control circuit in earth -leakage protector automation | |
| CN205190294U (en) | Uninterrupted power source of speed governing can carry out radiator fan | |
| CN104349517A (en) | Heating control circuit | |
| CN204156536U (en) | A kind of hydroelectric station auto-parallel instrument | |
| CN204650218U (en) | A kind of single-chip microcomputer Self-disconnecting restarts circuit | |
| CN203787687U (en) | Cut-off type power-saving socket | |
| CN203839998U (en) | Battery charging reverse-connection protecting circuit | |
| CN208782477U (en) | Anti- bonding circuit and intelligent socket when a kind of relay control capacitive load | |
| CN105403756A (en) | Circuit device having ground wire live detection function | |
| CN103812198B (en) | A kind of battery charges anti-circnit NOT |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20200514 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |