CN103075811B - Direct-heating type electric heater - Google Patents
Direct-heating type electric heater Download PDFInfo
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- CN103075811B CN103075811B CN201310062844.4A CN201310062844A CN103075811B CN 103075811 B CN103075811 B CN 103075811B CN 201310062844 A CN201310062844 A CN 201310062844A CN 103075811 B CN103075811 B CN 103075811B
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 143
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 101
- 239000012530 fluid Substances 0.000 claims abstract description 67
- 230000001934 delay Effects 0.000 claims abstract description 10
- 230000003111 delayed effect Effects 0.000 claims abstract description 9
- 238000010586 diagram Methods 0.000 description 12
- 230000008901 benefit Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
- F24H9/2028—Continuous-flow heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/101—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Multiple-Way Valves (AREA)
- Control Of Resistance Heating (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
The present invention relates to electric heater, particularly relate to direct-heating type electric heater, also known as quick-heating type electric water heater or instant electric water heater.Direct-heating type electric heater of the present invention, its shell is at least provided with gear knob, at least water pipe is provided with in shell, heating and fluid electric control valve, heating is energized the flowing water be used in flow heated water pipeline, fluid electric control valve is then used for controlling the current break-make in water pipe, gear knob has been mounted at least 2 switch with mechanical contacts, when gear knob rotates to different gear by knob, the combination of several groups of on off states is exported with the touching of above-mentioned switch with mechanical contact machinery whether various combination mode, thus realize controlling the break-make of heating and current, wherein this switch with mechanical contact in the loop of fluid electric control valve is connected a delays time to control unit and time delayed turn-off is carried out to the loop of fluid electric control valve, control with the flowing water time delayed turn-off realizing water heater.The present invention can close water by Intelligent time delay, and simple and reliable for structure.
Description
Technical field
The present invention relates to electric heater, particularly relate to direct-heating type electric heater, also known as quick-heating type electric water heater or instant electric water heater.
Background technology
Direct-heating type electric heater, also known as quick-heating type electric water heater or instant electric water heater, is a kind of electric heater different from the storage-type electric water heater of band storage tank.It utilizes high-power electric current to produce hot water to make the mode of hot water in the heating Fast Heating pipeline of electrothermal tube or solenoid, and therefore it has possessed and more to save time space-efficient advantage than traditional storage-type electric water heater.
Exactly because the Fast Heating characteristic of this direct-heating type electric heater, it has a weak point: when in the process of having a bath, during because smearing soap or shower cream when temporary close hot water, current in water pipe stop, although now heating also power-off quit work, its waste heat is very large, and the water do not circulated in water pipe can be made to be heated to a very high temperature, when again opening, easily there is skin and be burned.In addition, the too high remaining temperature of heating is to also impacting the service life of direct-heating type electric heater.Therefore, for solving the problems referred to above that direct-heating type electric heater exists, when direct-heating type electric heater must be allowed to close, first disconnect the electric current of heating, then a period of time closes the water pipe current in electric hot water again.
Based on above-mentioned solution, existing direct-heating type electric heater, the knob of the heating of the knob having the water pipe current by controlling electric heater and the heating controlling electric heater separately, user needs to carry out proper operation: after first manual-lock heating knob, manual-lock current knob again after waiting water pipe leaving water temperature normal after a period of time.This direct-heating type electric heater's troublesome poeration, can not meet the requirement of modern personage to convenient life.
Therefore, a kind of direct-heating type electric heater with the intelligence of time delay pass water function is invented, it is mainly realized by microcomputer-controlled circuit board, microcomputer chip in microcomputer-controlled circuit board is supplied by gathering knob to different gear positions signal, microcomputer chip automatically controlled different relay according to embedded program, utilize relay to carry out break-make and carry out the closedown of the heating circuit of the heating of control connection and the water flow circuits of magnetic valve and open.This direct-heating type electric heater with the intelligence of time delay pass water function can meet the requirement of simple operations, but its cost high (needing to adopt multiple high-current relay), and microcomputer-controlled circuit board easily breaks down.In addition, also have a kind of direct-heating type electric heater to make electric heater realize time delay by the method for pure Machine Design to close water function, but its assembly precision is high, structure is very complicated, can not be used more widely widely.
Summary of the invention
Therefore, the present invention proposes a kind of direct-heating type electric heater of improvement, and the collocation of its Design of Mechanical Structure by gear knob and some simple electronic devices and components or circuit board uses, and can realize time delay and close water function; It compares existing solution, has simple and reliable for structure, lower-cost advantage.
The present invention adopts following technical scheme to realize:
A kind of direct-heating type electric heater, there is a shell, shell is at least provided with gear knob, water pipe, heating and fluid electric control valve is at least provided with in shell, heating is energized the flowing water be used in flow heated water pipeline, and fluid electric control valve is then used for controlling the current break-make in water pipe.Wherein, described gear knob has been mounted at least 2 switch with mechanical contacts, when gear knob rotates to different gear by knob, the combination of several groups of on off states is exported with the touching of above-mentioned switch with mechanical contact machinery whether various combination mode, these switch with mechanical contacts are by the loop be connected in series with fluid electric control valve to the loop of heating, thus realize controlling the break-make of heating and current, wherein this switch with mechanical contact in the loop of fluid electric control valve is connected a delays time to control unit and time delayed turn-off is carried out to the loop of fluid electric control valve, control with the flowing water time delayed turn-off realizing water heater.
Wherein, described delays time to control unit is that temp controlled delay realizes, specifically: the temperature detect switch (TDS) first often opened is in parallel with this switch with mechanical contact in the loop of fluid electric control valve, be connected in series the loop to fluid electric control valve again, this temperature detect switch (TDS) is according to collecting variations in temperature and conducting or turning off the wherein primary Ioops in loop of fluid electric control valve.
Or, described delays time to control unit is that timing time delay realizes, specifically: this switch with mechanical contact first a control panel being serially connected with the loop of fluid electric control valve, be connected in series the loop to fluid electric control valve again, this control panel is as triggering signal using the switching signal of this switch with mechanical contact in the loop of fluid electric control valve, by controller according to this start trigger signal timing, after timing completes again by controller by relay conducting or the loop turning off fluid electric control valve.
Or, described delays time to control unit is that temperature control and timing combine realization, specifically: this switch with mechanical contact first a control panel being serially connected with the loop of fluid electric control valve, be connected in series the loop to fluid electric control valve again, this control panel is as triggering signal using the switching signal of this switch with mechanical contact in the loop of fluid electric control valve, and this control panel is changed by a temperature detector collecting temperature, by controller according to this start trigger signal timing, after the temperature value comprehensive descision that controller completes according to timing and/or gathers, again by the loop by relay conducting or shutoff fluid electric control valve.
Preferably, described control panel also has display unit, is connected to a display screen, for display and control and set information.
Wherein, described gear knob at least comprises a knob wheel base, knob rotating shaft, rotating disk boss, upper fixed seat fixes more than 2 switch with mechanical contacts, knob rotating shaft is fixed on the top of rotating disk boss, the bottom nested of rotating disk boss is located in knob wheel base, thus make knob rotating shaft that rotating disk boss can be driven to rotate relative to knob wheel base, upper fixed seat is fixed on knob wheel base, upper fixed seat supplies above-mentioned switch with mechanical contact and fixes used, and make rotating disk boss turn to suitable gear positions, its different trigger unit can touch the contact of corresponding switch with mechanical contact and make its conducting.
Preferably, described gear knob is also provided with " U " type elastic component, should being fixed on upper fixed seat by " U " type elastic component, and for being stuck in knob rotating shaft, its position of rotating gear being defined.
Preferably, pressure switch is provided with in the knob wheel base of described gear knob.
Wherein preferred, described gear knob comprises 2 heating gears, 1 shutdown gear and 1 cold water gear, Off shelves respectively, Cold shelves, I grade, II grade, 3 switch with mechanical contacts have been mounted in gear knob, wherein 1 is the loop of fluid electric control valve for controlling current, other 2 is the loop of heating for controlling 2 grades of heating functions, the control of the combination of on off state is specifically: when gear knob is threaded to Off shelves, first switch with mechanical contact of the return passage of control connection fluid electric control valve, second switch with mechanical contact of the return passage of control connection first heating, 3rd switch with mechanical contact three of the return passage of control connection second heating is all off-states, when gear knob is threaded to Cold shelves, first switch with mechanical contact of the return passage of control connection fluid electric control valve is conducting state, and the 3rd switch with mechanical contact of the second switch with mechanical contact of the return passage of control connection first heating and the return passage of control connection second heating is off-state, when gear knob is threaded to I grade, second switch with mechanical contact of the first switch with mechanical contact of the return passage of control connection fluid electric control valve and the return passage of control connection first heating is conducting state, and the 3rd switch with mechanical contact of the return passage of control connection second heating is off-state, when gear knob is threaded to II grade, the 3rd switch with mechanical contact three of the first switch with mechanical contact of the return passage of control connection fluid electric control valve, the second switch with mechanical contact of the return passage of control connection first heating, the return passage of control connection second heating is all conducting states.
Wherein preferred, described switch with mechanical contact is microswitch.
Wherein preferred, described fluid electric control valve is magnetic valve,
Wherein preferred, described heating is electrothermal tube.
Direct-heating type electric heater of the present invention also realizes the defencive function that water is closed in time delay while directly carrying out hot water gear switch by user by gear knob, it compares existing solution, has simple and reliable for structure, lower-cost advantage.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the gear knob of an embodiment.
Fig. 2 is that water control system connection layout is closed in the time delay of embodiment 1.
Fig. 3 is that water control system connection layout is closed in the time delay of embodiment 2.
Fig. 4 is that water control system connection layout is closed in the time delay of embodiment 3.
Fig. 5 is that temp controlled delay closes water implementation schematic diagram.
Fig. 6 is that water implementation schematic diagram is closed in timing time delay.
Fig. 7 is that temperature control closes water implementation schematic diagram with timing in conjunction with time delay.
Fig. 8 is the structural upright schematic diagram (angle one) of the gear knob of an embodiment.
Fig. 9 is the structural upright schematic diagram (angle two) of the gear knob of this embodiment.
Figure 10 is the structural upright schematic diagram (angle one) after the gear knob of this embodiment removes " U " type elastic component 17, upper fixed seat 18 and second, third microswitch 12,13.
Figure 11 is the structural upright schematic diagram (angle two) after the gear knob of this embodiment removes " U " type elastic component 17, upper fixed seat 18 and second, third microswitch 12,13.
Figure 12 is the gear knob of this embodiment when being in Off file location, the position relationship schematic diagram of rotating disk boss 16 and three microswitches 11,12,13.
Figure 13 is the gear knob of this embodiment when being in Cold file location, the position relationship schematic diagram of rotating disk boss 16 and three microswitches 11,12,13.
Figure 14 is the gear knob of this embodiment when being in I file location, the position relationship schematic diagram of rotating disk boss 16 and three microswitches 11,12,13.
Figure 15 is the gear knob of this embodiment when being in II file location, the position relationship schematic diagram of rotating disk boss 16 and three microswitches 11,12,13.
Detailed description of the invention
First the general configuration of direct-heating type electric heater is described.Direct-heating type electric heater has a shell, shell is provided with the gear knob of the different shift function of control realization, the terminal box connecting AC civil power and the waterpipe jointing being connected inlet channel and discharging water nozzle, water pipe, heating and fluid electric control valve is provided with in shell, heating energising can flowing water in flow heated water pipeline, and fluid electric control valve is then used for controlling the current break-make in water pipe; Wherein, heating can be powerful electrothermal tube (ceramic electrical heating tube), or electromagnetic heating coil etc., fluid electric control valve can adopt conventional magnetic valve to realize.The detailed construction of direct-heating type electric heater can be revealed in existing product design and relevant documents and materials, is described no longer in detail in this.In addition, direct-heating type electric heater, except above-mentioned basic structure composition, according to difference in functionality or Demand Design, and may can also additionally have other functional modules.
Now the present invention is further described with detailed description of the invention by reference to the accompanying drawings.In following embodiment, for convenience of description, heating adopts powerful electrothermal tube, and fluid electric control valve adopts conventional magnetic valve to realize, but be not limited to other similar alternative implementations of the present invention.
First, in embodiments of the invention, gear knob is improved, at least 2 switch with mechanical contacts have been mounted in gear knob, switch with mechanical contact is exactly the mechanical switch being made switch on and off by the stroke alteration of pressing switch contact, such as microswitch, push-button switch, metal elastic chip thin film switch etc., each embodiment is for charting and illustrating conveniently below, all adopts microswitch to realize.When this gear knob rotates to different gear by knob, machinery touches the various combination mode of above-mentioned 1 or 2 or multiple switch with mechanical contact to export the combination of several groups of on off states, these switch with mechanical contacts by the loop be connected in series with magnetic valve to the loop of electrothermal tube, thus realize the break-make controlling functions to heating and current; Wherein the loop of magnetic valve this switch with mechanical contact in this loop is connected (be connected in series or and connect) delays time to control unit to carry out time delayed turn-off to the loop of magnetic valve, the function controlled with the flowing water time delayed turn-off realizing water heater.
It should be noted that, each embodiment is drawing and the convenient gear knob all adopting 4 gears is described, consulting shown in Fig. 1 and assisting consults shown in Fig. 2-Fig. 4, gear knob comprises 2 heating gears, 1 shutdown gear and 1 cold water gear, namely 3 switch with mechanical contacts have been mounted in gear knob, wherein 1 is the loop of magnetic valve for controlling current, and other 2 is the loop of electrothermal tube for controlling 2 grades of heating functions.If only adopt 1 heating gear, then gear knob reduces by 1 gear and reduces by 1 switch with mechanical contact, if adopt 3 heating gears, then gear knob increases by 1 gear and increases by 1 switch with mechanical contact, by that analogy.
Consult Fig. 8-Figure 15 and assist and consult Fig. 1, the function that gear knob in embodiment will realize is: when gear knob is threaded to Off shelves, and the 3rd microswitch 13 three of the first microswitch 11 of the return passage of control connection magnetic valve 2, the second microswitch 12 of the return passage of control connection first electrothermal tube 31, the return passage of control connection second electrothermal tube 32 is all off-states; When gear knob is threaded to Cold shelves, first microswitch 11 of the return passage of control connection magnetic valve 2 is conducting states, and the 3rd microswitch 13 of the second microswitch 12 of the return passage of control connection first electrothermal tube 31 and the return passage of control connection second electrothermal tube 32 is off-states; When gear knob is threaded to I grade, second microswitch 12 of the first microswitch 11 of the return passage of control connection magnetic valve 2 and the return passage of control connection first electrothermal tube 31 is conducting states, and the 3rd microswitch 13 of the return passage of control connection second electrothermal tube 32 is off-states; When gear knob is threaded to II grade, the 3rd microswitch 13 three of the first microswitch 11 of the return passage of control connection magnetic valve 2, the second microswitch 12 of the return passage of control connection first electrothermal tube 31, the return passage of control connection second electrothermal tube 32 is all conducting states.
Therefore, the gear knob in embodiment adopts following structural design scheme.Again consult Fig. 8-Figure 15, this gear knob 1 comprises a knob wheel base 14, knob rotating shaft 15, rotating disk boss 16, " U " type elastic component 17, upper fixed seat 18 and three microswitches 11, 12, 13, knob rotating shaft 15 is fixed on the top of rotating disk boss 16, the bottom nested of rotating disk boss 16 is located in knob wheel base 14, thus make knob rotating shaft 15 that rotating disk boss 16 can be driven to rotate relative to knob wheel base 14, upper fixed seat 18 (being also connected and fixed by bolt) fixed by snap is at knob wheel base 14, upper fixed seat 18 is to supply above-mentioned first, second, 3rd microswitch 11, 12, 13 and " U " type elastic component 17 be fixed used.First microswitch 11 is fixed on the appropriate location of upper fixed seat 18, and make rotating disk boss 16 can touch its contact and make its conducting turning to suitable gear positions, second, third same microswitch 12,13 is also the appropriate location being fixed on upper fixed seat 18, and makes rotating disk boss 16 can touch its contact and make its conducting turning to suitable gear positions." U " type elastic component 17 being fixed on upper fixed seat 18 is to be stuck in knob rotating shaft 15, and its position of rotating gear is defined.Gear knob 1 in embodiment is 4 grades, therefore knob rotating shaft 15 has a foursquare part coordinate with this " U " type elastic component 17 and realize the restriction of 4 gear positions, " U " type elastic component 17 herein also can be realized identical function by the replacement of other gear stoppers; The conventional design being designed to gear knob herein, no longer describes in detail.
It should be noted that, knob wheel base 14 also has a tube connector 141, for being connected to water pipe, pressure switch is established in knob wheel base 14, it is the construction of switch utilizing hydraulic pressure to eject, when only having knob wheel base 14 to have hydraulic pressure to exist, just make the nested rotating disk boss 16 being located at knob wheel base 14 can touch the contact of three microswitches 11,12,13 in suitable gear positions, namely this gear knob 1 only have there is water pressure situation under just there is gear controlling functions; The structural design of this pressure switch is in order to the safeguard measure on electric heater use safety, also has and there is identical or similar structures design, be no longer described in detail therewith in the gear knob of some electric heaters.
Certain, gear knob is gone back fixed cover and is connected to a knob handpiece (not shown) in knob rotating shaft 15, and to facilitate user can rotate this gear knob with have gentle hands pine, this part is conventional design, no longer describes in detail.
Below in conjunction with accompanying drawing 12-15 and auxiliary consult Fig. 8-11, the triggering situation of rotating disk boss 16 at 4 different gear positions and first, second, third microswitch 11,12,13 is described in detail.Rotating disk boss 16 is designed with 3 corresponding with it trigger units for first, second, third above-mentioned microswitch 11,12,13, respectively: the first trigger unit 161 on the spindle central position of rotating disk boss 16, the second trigger unit 162 between the spindle central and outmost turns of rotating disk boss 16 on position and the 3rd trigger unit 163 be positioned on rotating disk boss 16 outmost turns position.
The outer contour shape of the first trigger unit 161 is that the part of wherein 1/4 circle of a complete circle inwardly lacks and an irregular cycle being formed, this 1/4 circle lack part is just in time the Off file location of this gear knob 1, and the position that the first microswitch 11 is fixed makes its contact be towards this first trigger unit 161, only has this gear knob 1 like this when Off file location, first trigger unit 161 can not touch the contact of the first microswitch 11, and other 3 gear positions are all the contacts touching the first microswitch 11.In addition, reliably touch to better realize contact, what this first microswitch 11 was selected is the lever-type microswitch of band.
Second trigger unit 162 is that the ring part that outer contour shape round boss inwardly lacks 1/2 is formed, the lack part of this 1/2 annulus is just in time Off shelves and the Cold file location of this gear knob 1, and the position that the second microswitch 12 is fixed is put downwards and makes its contact be towards the lack part place of 1/2 annulus of this second trigger unit 162, like this when this gear knob 1 is at Off shelves and Cold file location, second trigger unit 162 can not touch the contact of the second microswitch 12, and the heating file location of other 2 I grade and II grade is all the contact touching the second microswitch 12.In addition, well can press the contact of the second microswitch 12 during in order to touch, the lack part of this 1/2 annulus of the second trigger unit 162 and the transition face of round boss are inclined-plane.
(annulus has one fixed width to 3rd trigger unit 163 to be outer contour shapes be one 1/4 circular, its width is greater than the contact of microswitch) bossing formed, this circular bossing of 1/4 is just in time II file location of this gear knob 1, and the position that the 3rd microswitch 13 is fixed is put downwards and makes its contact be towards the circular lug boss office of 1/4 of the 3rd trigger unit 163, like this when this gear knob 1 is in II file location, 3rd trigger unit 163 can touch the contact of the 3rd microswitch 13, other Off shelves, when Cold shelves and I file location, 3rd trigger unit 163 can not touch the contact of the 3rd microswitch 13.In addition, well can press the contact of the 3rd microswitch 13 during in order to touch, head, the rear of this circular bossing of 1/4 of the 3rd trigger unit 163 are inclined-plane.
It should be noted that, first, second, third trigger unit 161,162,163 of rotating disk boss 16 designs to trigger with first, second, third microswitch 11,12,13, actual embodiment can be part is arranged on knob rotating shaft 15 and is partly arranged on rotating disk boss 16, such as, the first trigger unit 161 in accompanying drawing 8-11 is arranged in knob rotating shaft 15, is positioned at the top being socketed position with rotating disk boss 16; Or rotating disk boss 16 and knob rotating shaft 15 are structures of one, this integrative-structure have first, second, third trigger unit 161,162,163, and should not adhere rigidly to and the embodiment in accompanying drawing.
Secondly, consult shown in Fig. 5-Fig. 7, three kinds of modes that the control realization mode of closing water to time delay in the embodiment of the present invention can adopt temp controlled delay, timing time delay or temperature control to be combined with timing realize.
Embodiment 1:
Consulting shown in Fig. 5 and auxiliaryly to consult shown in Fig. 2, is adopt temperature control program that water is closed in time delay.The temperature detect switch (TDS) first often opened one is in parallel with this switch with mechanical contact in the loop of magnetic valve, then is connected in series the loop to magnetic valve, and this temperature detect switch (TDS) is according to collecting variations in temperature and conducting or turning off the wherein primary Ioops in loop of magnetic valve.More specifically: the one end of magnetic valve 2 controlling water flow circuits is connecting to neutral line N, and the other end has 2 passages, passage is the first microswitch 11 in gear knob 1, and another passage is a temperature detect switch (TDS) often opened 6.Controlling heating circuit is then respectively the second microswitch 12 is serially connected with the first electrothermal tube 31 to form the first heating circuit and the 3rd microswitch 13 is serially connected with the second electrothermal tube 32 and form the second heating circuit, this temperature detect switch (TDS) 6 often opened is installed in the position of the water pipe closing on hot water, realizes switching over operation with more accurate acquisition variations in temperature.
It is known in conjunction with the above-mentioned explanation about gear knob 1: when electric heater not yet uses, when gear knob 1 is in Off shelves, microswitch 11,12,13 is off-state, temperature detect switch (TDS) 6 is also in off-state, now electric heater current and heating circuit all disconnect, and electric heater not flowing water does not also heat.When gear knob 1 is threaded to Cold shelves, the first microswitch 11 closes, and second, third microswitch 12,13 disconnects, temperature detect switch (TDS) 6 is also in off-state, now electric heater water flow circuits conducting but heating circuit disconnect, electric heater flowing water but do not heat, and namely flow out cold water.When gear knob 1 is threaded to I grade, first, second microswitch 11,12 closes, and the 3rd microswitch 13 disconnects, now electric heater water flow circuits conducting, and the first heating circuit conducting, but the second heating circuit disconnects, the also one grade of heating of electric heater flowing water, namely flows out warm water.In like manner, when gear knob 1 is threaded to II grade, first, second, third microswitch 11,12,13 is all closed, now electric heater water flow circuits conducting, the equal conducting of first, second heating circuit, and the also two grades of heating of electric heater flowing water, namely flow out hotter hot water.
Consult shown in Fig. 1 and Fig. 8-Figure 15 again, when gear knob 1 is threaded to Off shelves from hot water shelves I grade or II grade, the passage of the first microswitch 11 disconnects, but due to the first electrothermal tube 31 or the first, second electrothermal tube 31, 32 exist comparatively Gao Yuwen, the temperature of the water pipe in electric heater is still higher, temperature detect switch (TDS) 6 closes, therefore the passage of temperature detect switch (TDS) 6 is in closure state, until after the temperature of water pipe is down to normal temperature, temperature detect switch (TDS) 6 just replys off-state, and the supplying channels of magnetic valve 2 will be disconnected, and the current cut off in the water pipe of electric heater, thus realize time delay pass water conservation function.In addition; this electric heater is electrically connected with AC city by terminal box 5, and the temperature detect switch (TDS) (TCO) 4 that serial connection one is normally closed in total electric loop, for global protecting; when when electric heater generation abnormal failure, temperature is too high, this temperature detect switch (TDS) 4 cuts off total supplying channels.The scheme advantage that this temp controlled delay closes water is: can change according to coolant-temperature gage and Intelligent time delay closes water.
Embodiment 2:
Consulting shown in Fig. 6 and auxiliaryly to consult shown in Fig. 3, is adopt timing control program that water is closed in time delay.First a control panel is serially connected with this switch with mechanical contact in the loop of magnetic valve, be connected in series the loop to magnetic valve again, this control panel is as triggering signal using the switching signal of this switch with mechanical contact in the loop of magnetic valve, by controller according to this start trigger signal timing, after timing completes again by controller by relay conducting or turn off the loop of magnetic valve.More specifically: this embodiment is substantially the same manner as Example 1; it is all identical that what heating circuit and total loop were protected realize structure; difference is; one end of the magnetic valve 2 of the control water flow circuits of this embodiment is connecting to neutral line N; the other end is connected to a control panel 7, carries out control conducting and closed switching by the relay unit of this control panel 7.On this control panel 7 except relay unit, also have microprocessor (MCU), timing unit, power subsystem, power subsystem is connected to terminal box, and converts AC civil power the low-voltage direct working power of control panel to; First microswitch 11 is connected to this control panel 7, and the microprocessor of this control panel 7 starts timing unit timing according to the switching signal of the first microswitch 11 collected, after timing terminates again control relay to cut off water flow circuits.Microprocessor (MCU) in this control panel 7, timing unit, power subsystem, relay unit all can adopt simple circuit unit of the prior art to realize, realization with low cost.This timing time delay is closed the scheme advantage of water and is: fix duration according to timing and carry out time delay and close water, can not because of temperature acquisition hysteresis quality delayed pass water.
Embodiment 3:
Consulting shown in Fig. 7 and auxiliaryly to consult shown in Fig. 4, is adopt temperature control and timing to combine the control program that water is closed in time delay.First a control panel is serially connected with this switch with mechanical contact in the loop of magnetic valve, be connected in series the loop to magnetic valve again, this control panel is as triggering signal using the switching signal of this switch with mechanical contact in the loop of magnetic valve, and this control panel is changed by a temperature detector collecting temperature, by controller according to this start trigger signal timing, after the temperature value comprehensive descision that controller completes according to timing and/or gathers, then by the loop by relay conducting or shutoff magnetic valve.More specifically: this embodiment is substantially the same manner as Example 2, it is all identical that what heating circuit, water flow circuits and total loop were protected realize structure, and difference is, is to adopt control panel 7 ' to replace above-mentioned control panel 7.This control panel 7 ' is upper except relay unit, microprocessor (MCU), timing unit, power subsystem, also has a temperature detecting unit, and connects a Temperature probe 8, is used for the temperature of acquisition stream waterpipe; In addition, also have a display unit, connect a display screen 9, the information such as display and control and setting that is used for is seen to user.In addition, after can carrying out comprehensive descision according to the switching signal of the first microswitch 11 collected and the temperature value signal of Temperature probe 8 by embedded control program in microprocessor (MCU) on this control panel 7 ', and control relay cuts off water flow circuits.Preferred control mode is: when timing terminate or temperature lower than setting threshold value two conditions in any one condition first realize namely performing control relay to cut off the operation of water flow circuits.The scheme advantage that this temperature and timing close water in conjunction with time delay is: carry out time delay according to timing and temperature conditions comprehensive descision and close water, more accurate science; In addition, after any one breaks down in timing unit or temperature detecting unit, do not affect the control that water is closed in time delay, safer.
Although specifically show in conjunction with preferred embodiment and describe the present invention; but those skilled in the art should be understood that; not departing from the spirit and scope of the present invention that appended claims limits; can make a variety of changes the present invention in the form and details, be protection scope of the present invention.
Claims (15)
1. direct-heating type electric heater, there is a shell, shell is at least provided with gear knob, at least water pipe is provided with in shell, heating and fluid electric control valve, heating is energized the flowing water be used in flow heated water pipeline, fluid electric control valve is then used for controlling the current break-make in water pipe, it is characterized in that: described gear knob has been mounted at least 2 switch with mechanical contacts, when gear knob rotates to different gear by knob, the combination of several groups of on off states is exported with the touching of above-mentioned switch with mechanical contact machinery whether various combination mode, these switch with mechanical contacts are by the loop be connected in series with fluid electric control valve to the loop of heating, thus realize controlling the break-make of heating and current, wherein this switch with mechanical contact in the loop of fluid electric control valve is connected a delays time to control unit and time delayed turn-off is carried out to the loop of fluid electric control valve, control with the flowing water time delayed turn-off realizing water heater.
2. direct-heating type electric heater according to claim 1, it is characterized in that: described delays time to control unit is that temp controlled delay realizes, specifically: the temperature detect switch (TDS) first often opened is in parallel with this switch with mechanical contact in the loop of fluid electric control valve, be connected in series the loop to fluid electric control valve again, this temperature detect switch (TDS) is according to collecting variations in temperature and conducting or turning off the wherein primary Ioops in loop of fluid electric control valve.
3. direct-heating type electric heater according to claim 1, it is characterized in that: described delays time to control unit is that timing time delay realizes, specifically: this switch with mechanical contact first a control panel being serially connected with the loop of fluid electric control valve, be connected in series the loop to fluid electric control valve again, this control panel is as triggering signal using the switching signal of this switch with mechanical contact in the loop of fluid electric control valve, by controller according to this start trigger signal timing, after timing completes again by controller by relay conducting or the loop turning off fluid electric control valve.
4. direct-heating type electric heater according to claim 1, it is characterized in that: described delays time to control unit is that temperature control and timing combine realization, specifically: this switch with mechanical contact first a control panel being serially connected with the loop of fluid electric control valve, be connected in series the loop to fluid electric control valve again, this control panel is as triggering signal using the switching signal of this switch with mechanical contact in the loop of fluid electric control valve, and this control panel is changed by a temperature detector collecting temperature, by controller according to this start trigger signal timing, after the temperature value comprehensive descision that controller completes according to timing and/or gathers, again by the loop by relay conducting or shutoff fluid electric control valve.
5. the direct-heating type electric heater according to claim 3 or 4, is characterized in that: described control panel also has display unit, is connected to a display screen, for display and control and set information.
6. the direct-heating type electric heater according to claim 1 or 2 or 3 or 4, it is characterized in that: described gear knob at least comprises a knob wheel base, knob rotating shaft, rotating disk boss, upper fixed seat fixes more than 2 switch with mechanical contacts, knob rotating shaft is fixed on the top of rotating disk boss, the bottom nested of rotating disk boss is located in knob wheel base, thus make knob rotating shaft that rotating disk boss can be driven to rotate relative to knob wheel base, upper fixed seat is fixed on knob wheel base, upper fixed seat supplies above-mentioned switch with mechanical contact and fixes used, and make rotating disk boss turn to suitable gear positions, its different trigger unit can touch the contact of corresponding switch with mechanical contact and make its conducting.
7. direct-heating type electric heater according to claim 6, is characterized in that: described gear knob is also provided with " U " type elastic component, should being fixed on upper fixed seat by " U " type elastic component, and for being stuck in knob rotating shaft, its position of rotating gear being defined.
8. direct-heating type electric heater according to claim 7, is characterized in that: be provided with pressure switch in the knob wheel base of described gear knob.
9. the direct-heating type electric heater according to claim 1 or 2 or 3 or 4, it is characterized in that: described gear knob comprises 2 heating gears, 1 shutdown gear and 1 cold water gear, Off shelves respectively, Cold shelves, I grade, II grade, 3 switch with mechanical contacts have been mounted in gear knob, wherein 1 is the loop of fluid electric control valve for controlling current, other 2 is the loop of heating for controlling 2 grades of heating functions, the control of the combination of on off state is specifically: when gear knob is threaded to Off shelves, first switch with mechanical contact of the return passage of control connection fluid electric control valve, second switch with mechanical contact of the return passage of control connection first heating, 3rd switch with mechanical contact three of the return passage of control connection second heating is all off-states, when gear knob is threaded to Cold shelves, first switch with mechanical contact of the return passage of control connection fluid electric control valve is conducting state, and the 3rd switch with mechanical contact of the second switch with mechanical contact of the return passage of control connection first heating and the return passage of control connection second heating is off-state, when gear knob is threaded to I grade, second switch with mechanical contact of the first switch with mechanical contact of the return passage of control connection fluid electric control valve and the return passage of control connection first heating is conducting state, and the 3rd switch with mechanical contact of the return passage of control connection second heating is off-state, when gear knob is threaded to II grade, the 3rd switch with mechanical contact three of the first switch with mechanical contact of the return passage of control connection fluid electric control valve, the second switch with mechanical contact of the return passage of control connection first heating, the return passage of control connection second heating is all conducting states.
10. direct-heating type electric heater according to claim 6, it is characterized in that: described gear knob comprises 2 heating gears, 1 shutdown gear and 1 cold water gear, Off shelves respectively, Cold shelves, I grade, II grade, 3 switch with mechanical contacts have been mounted in gear knob, wherein 1 is the loop of fluid electric control valve for controlling current, other 2 is the loop of heating for controlling 2 grades of heating functions, the control of the combination of on off state is specifically: when gear knob is threaded to Off shelves, first switch with mechanical contact of the return passage of control connection fluid electric control valve, second switch with mechanical contact of the return passage of control connection first heating, 3rd switch with mechanical contact three of the return passage of control connection second heating is all off-states, when gear knob is threaded to Cold shelves, first switch with mechanical contact of the return passage of control connection fluid electric control valve is conducting state, and the 3rd switch with mechanical contact of the second switch with mechanical contact of the return passage of control connection first heating and the return passage of control connection second heating is off-state, when gear knob is threaded to I grade, second switch with mechanical contact of the first switch with mechanical contact of the return passage of control connection fluid electric control valve and the return passage of control connection first heating is conducting state, and the 3rd switch with mechanical contact of the return passage of control connection second heating is off-state, when gear knob is threaded to II grade, the 3rd switch with mechanical contact three of the first switch with mechanical contact of the return passage of control connection fluid electric control valve, the second switch with mechanical contact of the return passage of control connection first heating, the return passage of control connection second heating is all conducting states.
11. direct-heating type electric heaters according to claim 7, it is characterized in that: described gear knob comprises 2 heating gears, 1 shutdown gear and 1 cold water gear, Off shelves respectively, Cold shelves, I grade, II grade, 3 switch with mechanical contacts have been mounted in gear knob, wherein 1 is the loop of fluid electric control valve for controlling current, other 2 is the loop of heating for controlling 2 grades of heating functions, the control of the combination of on off state is specifically: when gear knob is threaded to Off shelves, first switch with mechanical contact of the return passage of control connection fluid electric control valve, second switch with mechanical contact of the return passage of control connection first heating, 3rd switch with mechanical contact three of the return passage of control connection second heating is all off-states, when gear knob is threaded to Cold shelves, first switch with mechanical contact of the return passage of control connection fluid electric control valve is conducting state, and the 3rd switch with mechanical contact of the second switch with mechanical contact of the return passage of control connection first heating and the return passage of control connection second heating is off-state, when gear knob is threaded to I grade, second switch with mechanical contact of the first switch with mechanical contact of the return passage of control connection fluid electric control valve and the return passage of control connection first heating is conducting state, and the 3rd switch with mechanical contact of the return passage of control connection second heating is off-state, when gear knob is threaded to II grade, the 3rd switch with mechanical contact three of the first switch with mechanical contact of the return passage of control connection fluid electric control valve, the second switch with mechanical contact of the return passage of control connection first heating, the return passage of control connection second heating is all conducting states.
12. direct-heating type electric heaters according to claim 8, it is characterized in that: described gear knob comprises 2 heating gears, 1 shutdown gear and 1 cold water gear, Off shelves respectively, Cold shelves, I grade, II grade, 3 switch with mechanical contacts have been mounted in gear knob, wherein 1 is the loop of fluid electric control valve for controlling current, other 2 is the loop of heating for controlling 2 grades of heating functions, the control of the combination of on off state is specifically: when gear knob is threaded to Off shelves, first switch with mechanical contact of the return passage of control connection fluid electric control valve, second switch with mechanical contact of the return passage of control connection first heating, 3rd switch with mechanical contact three of the return passage of control connection second heating is all off-states, when gear knob is threaded to Cold shelves, first switch with mechanical contact of the return passage of control connection fluid electric control valve is conducting state, and the 3rd switch with mechanical contact of the second switch with mechanical contact of the return passage of control connection first heating and the return passage of control connection second heating is off-state, when gear knob is threaded to I grade, second switch with mechanical contact of the first switch with mechanical contact of the return passage of control connection fluid electric control valve and the return passage of control connection first heating is conducting state, and the 3rd switch with mechanical contact of the return passage of control connection second heating is off-state, when gear knob is threaded to II grade, the 3rd switch with mechanical contact three of the first switch with mechanical contact of the return passage of control connection fluid electric control valve, the second switch with mechanical contact of the return passage of control connection first heating, the return passage of control connection second heating is all conducting states.
13. direct-heating type electric heaters according to claim 1 or 2 or 3 or 4, is characterized in that: described switch with mechanical contact is microswitch.
14. direct-heating type electric heaters according to claim 1 or 2 or 3 or 4, is characterized in that: described fluid electric control valve is magnetic valve.
15. direct-heating type electric heaters according to claim 1 or 2 or 3 or 4, is characterized in that: described heating is electrothermal tube.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310062844.4A CN103075811B (en) | 2013-02-28 | 2013-02-28 | Direct-heating type electric heater |
| GB1309281.2A GB2511368B (en) | 2013-02-28 | 2013-05-23 | Instant electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310062844.4A CN103075811B (en) | 2013-02-28 | 2013-02-28 | Direct-heating type electric heater |
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| Publication Number | Publication Date |
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| CN103075811A CN103075811A (en) | 2013-05-01 |
| CN103075811B true CN103075811B (en) | 2016-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310062844.4A Active CN103075811B (en) | 2013-02-28 | 2013-02-28 | Direct-heating type electric heater |
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| Country | Link |
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| CN (1) | CN103075811B (en) |
| GB (1) | GB2511368B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075811B (en) * | 2013-02-28 | 2016-01-06 | 厦门帅科卫浴电器有限公司 | Direct-heating type electric heater |
| CN103940076B (en) * | 2014-05-09 | 2016-09-14 | 卓元廉 | Miniature water-heater |
| CN105202769B (en) * | 2015-10-09 | 2017-11-17 | 六安市同心畅能电子科技有限公司 | Forced-ventilated gas water heater shower house tap preheating device |
| CN106440395B (en) * | 2016-12-09 | 2021-11-23 | 厦门阿玛苏电子卫浴有限公司 | Switch device applied to instant electric water heater |
| CN108302756A (en) * | 2017-01-13 | 2018-07-20 | 中山市艾菲尔电器有限公司 | A kind of adjustable heat generating device of instant heating type temperature |
| DE102017000438A1 (en) * | 2017-01-19 | 2018-07-19 | Stiebel Eltron Gmbh & Co. Kg | Safety device for emergency shutdown of an electric instantaneous water heater |
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| CN2175377Y (en) * | 1993-10-27 | 1994-08-24 | 陈永华 | Wire controlling device dor directly heating type gas water heater |
| CN1920437A (en) * | 2005-08-25 | 2007-02-28 | 王焱 | Energy-saving control method for electric heater and electric heating system thereof |
| CN202002328U (en) * | 2011-04-19 | 2011-10-05 | 徐菲 | Water-saving device of water heater |
| CN202057059U (en) * | 2010-12-17 | 2011-11-30 | 深圳市世惠之家电器有限公司 | Changeover switch for adjusting power of electric water heater |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2007046B (en) * | 1977-07-21 | 1982-03-24 | Dolphin Showers Ltd | Water heaters |
| GB2319831A (en) * | 1996-11-30 | 1998-06-03 | Basic Patents | Safety system for instantaneous water heaters |
| GB9820363D0 (en) * | 1998-09-19 | 1998-11-11 | Caradon Mira Ltd | Improvements in or relating to instantaneous water heaters |
| BRPI0905319B1 (en) * | 2009-12-04 | 2020-09-24 | Cláudio Lourenço Lorenzetti | IMPROVEMENT IN ELECTRIC SHOWER |
| CN103075811B (en) * | 2013-02-28 | 2016-01-06 | 厦门帅科卫浴电器有限公司 | Direct-heating type electric heater |
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- 2013-02-28 CN CN201310062844.4A patent/CN103075811B/en active Active
- 2013-05-23 GB GB1309281.2A patent/GB2511368B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2175377Y (en) * | 1993-10-27 | 1994-08-24 | 陈永华 | Wire controlling device dor directly heating type gas water heater |
| CN1920437A (en) * | 2005-08-25 | 2007-02-28 | 王焱 | Energy-saving control method for electric heater and electric heating system thereof |
| CN202057059U (en) * | 2010-12-17 | 2011-11-30 | 深圳市世惠之家电器有限公司 | Changeover switch for adjusting power of electric water heater |
| CN202002328U (en) * | 2011-04-19 | 2011-10-05 | 徐菲 | Water-saving device of water heater |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2511368B (en) | 2016-05-04 |
| GB201309281D0 (en) | 2013-07-10 |
| GB2511368A (en) | 2014-09-03 |
| CN103075811A (en) | 2013-05-01 |
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