CN103075811A - Direct heating type electric water heater - Google Patents
Direct heating type electric water heater Download PDFInfo
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- CN103075811A CN103075811A CN2013100628444A CN201310062844A CN103075811A CN 103075811 A CN103075811 A CN 103075811A CN 2013100628444 A CN2013100628444 A CN 2013100628444A CN 201310062844 A CN201310062844 A CN 201310062844A CN 103075811 A CN103075811 A CN 103075811A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 142
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 99
- 239000012530 fluid Substances 0.000 claims abstract description 65
- 230000003111 delayed effect Effects 0.000 claims description 6
- 238000005485 electric heating Methods 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 12
- 230000008901 benefit Effects 0.000 description 6
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- 230000015572 biosynthetic process Effects 0.000 description 3
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- 230000007935 neutral effect Effects 0.000 description 2
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- 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
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- 239000000919 ceramic Substances 0.000 description 1
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- 239000006071 cream Substances 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
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- 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
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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
Abstract
The invention relates to an electric water heater, in particular to a direct heating type electric water heater, which is also named as fast heating type electric water heater or instant heating type electric water heater. A gear knob is at least arranged on a shell of the direct heating type electric water heater; a water flow pipe, an electric heating element and a fluid electric control valve are at least arranged in the shell; the electric heating element is electrified to heat flow water in the water flow pipe; the fluid electric control valve is used for controlling the flowing/stopping of the water flow in the water flow pipe; and at least two mechanical contact switches are arranged on the gear knob. When the gear knob is rotated to different gears through a knob, the combination of groups of switches is output in the different combination ways that the gear knob is mechanically contacted with the mechanical contact switches, so that heating and flowing/stopping of the water flow are controlled. The mechanical contact switch of a loop of the fluid electric control valve is connected with a time delay control unit to perform time relay disconnection of the loop of the fluid electric control valve, so that flow water delay disconnection of the water heater is controlled. Water can be intelligently cut off in a delay way by the direct heating type electric water heater, and the direct heating type electric water heater is simple and reliable in structure.
Description
Technical field
The present invention relates to electric heater, relate in particular to the direct-heating type electric heater, heated electric water heater or instant electric water heater express one's gratification again.
Background technology
The direct-heating type electric heater, express one's gratification again heated electric water heater or instant electric water heater, be from the different a kind of electric heater of the storage-type electric water heater of storage tank.It is to utilize high-power electric current to make the mode of hot water in the heating Fast Heating pipeline of electrothermal tube or solenoid produce hot water, so it has possessed than traditional storage-type electric water heater space-efficient advantage of more saving time.
Exactly because this direct-heating type electric heater's Fast Heating characteristic, it has a weak point: in the process of having a bath, when smearing soap or shower cream in the situation of temporary close hot water, current in the water pipe stop, although heating also cut off the power supply and quit work this moment, its waste heat is very large, can make the water that does not circulate in the water pipe be heated to a very high temperature, when again opening, skin easily occurs be burned.In addition, the too high remaining temperature of heating is to also impacting direct-heating type electric heater's service life.Therefore, the problems referred to above that exist for solving the direct-heating type electric heater when must allow the direct-heating type electric heater close, disconnect first the electric current of heating, and then a period of time is closed the water pipe current in the electric hot water again.
Based on above-mentioned solution, existing direct-heating type electric heater, have with the knob of the heating of the heating of the knob of the water pipe current of control electric heater and control electric heater separately, the user need to carry out proper operation: after manually closing first the heating knob, waits after a period of time the water pipe leaving water temperature normally after manual-lock current knob again.This direct-heating type electric heater's troublesome poeration can not satisfy modern personage to the requirement of convenient life.
Therefore, a kind of direct-heating type electric heater with intelligence of time-delay pass water function is invented, it mainly is to realize by microcomputer-controlled circuit board, supply with microcomputer chip in the microcomputer-controlled circuit board by gathering knob to different gear positions signals, microcomputer chip comes automatically controlled different relays according to embedded program, utilizes relay to come break-make to come the closing and opening of current loop of the heating circuit of heating of control connection and magnetic valve.This direct-heating type electric heater with intelligence of time-delay pass water function can satisfy the requirement of simple operations, but its cost high (needing to adopt a plurality of high-current relays), and microcomputer-controlled circuit board easily breaks down.In addition, also having a kind of direct-heating type electric heater is that method by pure Machine Design makes electric heater realize that time-delay closes 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 improved direct-heating type electric heater, and it uses by the Design of Mechanical Structure of gear knob and the collocation of some simple electronic devices and components or circuit board, can realize time-delay pass water function; It compares existing solution, has advantage simple and reliable for structure, lower-cost.
The present invention adopts following technical scheme to realize:
A kind of direct-heating type electric heater, has a shell, at least be provided with the gear knob on the shell, at least be provided with water pipe, heating and fluid electric control valve in the shell, heating energising is used for the flowing water in the flow heated water pipeline, and the fluid electric control valve then is used for controlling the current break-make in the water pipe.Wherein, described gear knob has been mounted at least 2 switch with mechanical contacts, when the gear knob rotates to different gear by knob, the combination of exporting several groups of on off states with the touching whether various combination mode of above-mentioned switch with mechanical contact machinery, these switch with mechanical contacts are connected in series to the loop of heating and the loop of fluid electric control valve, thereby realize the break-make control to heating and current, wherein this switch with mechanical contact in the loop of fluid electric control valve is connected a time-delay control module and come the loop of convection cell electric control valve to carry out time delayed turn-off, to realize the flowing water time delayed turn-off control of water heater.
Wherein, described time-delay control module is that temp controlled delay is realized, specifically: first that a temperature detect switch (TDS) of often opening is in parallel with this switch with mechanical contact in the loop of fluid electric control valve, be connected in series to the loop of fluid electric control valve, this temperature detect switch (TDS) is according to collecting variations in temperature and a wherein loop in the loop of conducting or shutoff fluid electric control valve again.
Perhaps, described time-delay control module is that the timing time-delay realizes, specifically: this switch with mechanical contact that first a control panel is serially connected with the loop of fluid electric control valve, be connected in series again to the loop of fluid electric control valve, this control panel is that switching signal with this switch with mechanical contact in the loop of fluid electric control valve is as triggering signal, according to this start trigger signal timing, after finishing, timing passed through again the loop of relay conducting or shutoff fluid electric control valve by controller by controller.
Or, described time-delay control module is that temperature control and timing are in conjunction with realizing, specifically: this switch with mechanical contact that first a control panel is serially connected with the loop of fluid electric control valve, be connected in series again to the loop of fluid electric control valve, this control panel is that switching signal with this switch with mechanical contact in the loop of fluid electric control valve is as triggering signal, and this control panel is changed by a Temperature Detector collecting temperature, by controller according to this start trigger signal timing, after the comprehensive judgement of the temperature value that controller is finished and/or gathered according to timing, again by the loop by relay conducting or shutoff fluid electric control valve.
Preferably, also have display unit on the described control panel, be connected in a display screen, be used for showing control and set information.
Wherein, described gear knob comprises a knob wheel base at least, the knob rotating shaft, the rotating disk boss, upper fixed seat is fixed 2 above switch with mechanical contacts, the knob rotating shaft is fixed on the top of rotating disk boss, the bottom nested of rotating disk boss is located in the knob wheel base, thereby making the knob rotating shaft can drive the rotating disk boss rotates relative to the knob wheel base, upper fixed seat is fixed on the knob wheel base, it is fixing used that upper fixed seat is supplied with above-mentioned switch with mechanical contact, and making the rotating disk boss turn to suitable gear positions, its different triggering section can touch the contact of corresponding switch with mechanical contact and make its conducting.
Preferably, described gear knob also is provided with " U " type elastic component, should be fixed in upper fixed seat by " U " type elastic component, is used for being stuck in the knob rotating shaft, and its position of rotating gear is defined.
Preferably, be provided with pressure switch 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, respectively the Off shelves, the Cold shelves, the I shelves, the II shelves, 3 switch with mechanical contacts have been mounted in the gear knob, wherein 1 is the loop for the fluid electric control valve of control current, other 2 is the loop of heating for 2 grades of heating functions of control, the control of the combination of on off state is specifically: when the gear knob is threaded to the Off shelves, and 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 the first heating, the 3rd switch with mechanical contact three of the return passage of control connection the second heating all is off-states; When the gear knob is threaded to the Cold shelves, the 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 return passage of the second switch with mechanical contact of the return passage of control connection the first heating and control connection the second heating is off-state; When the gear knob is threaded to the I shelves, the second switch with mechanical contact of the return passage of the first switch with mechanical contact of the return passage of control connection fluid electric control valve and control connection the first heating is conducting state, and the 3rd switch with mechanical contact of the return passage of control connection the second heating is off-state; When the gear knob was threaded to the II shelves, the 3rd switch with mechanical contact three of the second switch with mechanical contact of the return passage of the first switch with mechanical contact of the return passage of control connection fluid electric control valve, control connection the first heating, the return passage of control connection the second heating all was 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 when directly carrying out the hot water gear switch by the user by the gear knob delaying time and closes the defencive function of water, and it compares existing solution, has advantage simple and reliable for structure, lower-cost.
Description of drawings
Fig. 1 is the schematic diagram of the gear knob of an embodiment.
Fig. 2 is that the water control system connection layout is closed in the time-delay of embodiment 1.
Fig. 3 is that the water control system connection layout is closed in the time-delay of embodiment 2.
Fig. 4 is that the 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 the timing time-delay.
Fig. 7 is that temperature control is combined time-delay and is closed water implementation schematic diagram with timing.
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 the Off file location, rotating disk boss 16 and three microswitches 11,12,13 position relationship schematic diagram.
Figure 13 is the gear knob of this embodiment when being in the Cold file location, rotating disk boss 16 and three microswitches 11,12,13 position relationship schematic diagram.
Figure 14 is the gear knob of this embodiment when being in the I file location, rotating disk boss 16 and three microswitches 11,12,13 position relationship schematic diagram.
Figure 15 is the gear knob of this embodiment when being in the II file location, rotating disk boss 16 and three microswitches 11,12,13 position relationship schematic diagram.
The specific embodiment
At first direct-heating type electric heater's general configuration described.The direct-heating type electric heater has a shell, shell is provided with the gear knob of the different shift functions of control realization, the terminal box and the waterpipe jointing that is connected inlet channel and discharging water nozzle of connection AC civil power, be provided with water pipe, heating and fluid electric control valve in the shell, the heating energising flowing water in can the flow heated water pipeline, the fluid electric control valve then is used for controlling the current break-make in the water pipe; Wherein, heating can be powerful electrothermal tube (ceramic electrical heating tube), perhaps electromagnetic heating coil etc., and the fluid electric control valve can adopt conventional magnetic valve to realize.Direct-heating type electric heater's detailed structure can be revealed in existing product design and relevant documents and materials, is described no longer in detail in this.In addition, the direct-heating type electric heater can also be according to difference in functionality or Demand Design except above-mentioned basic structure forms, and may additionally have other functional modules.
Now the present invention is further described with the specific embodiment by reference to the accompanying drawings.Below among each embodiment, for convenience of description, heating is to adopt powerful electrothermal tube, the fluid electric control valve is to adopt conventional magnetic valve to realize, similarly substitutes implementations but be not limited to of the present invention other.
At first, in the embodiments of the invention gear knob is improved, at least 2 switch with mechanical contacts have been mounted in the gear knob, switch with mechanical contact is exactly the mechanical switch that makes switch on and off by the stroke alteration of push switch contact, such as microswitch, push-button switch, metal elastic chip thin film switch etc., below each embodiment convenient for drawing and explanation, all adopt microswitch to realize.When this gear knob rotates to different gear by knob, machinery touches the combination that the various combination mode of above-mentioned 1 or 2 or a plurality of switch with mechanical contacts is exported several groups of on off states, these switch with mechanical contacts are connected in series to the loop of electrothermal tube and the loop of magnetic valve, thereby realize the break-make control function to heating and current; Wherein the loop of magnetic valve is this switch with mechanical contact in this loop to be connected (serial connection or and connect) time-delay control module to come time delayed turn-off is carried out in the loop of magnetic valve, with the function of the flowing water time delayed turn-off control that realizes water heater.
Need to prove, each embodiment is drawing and the convenient gear knob that all adopts 4 gears of explanation, consult shown in Figure 1 and auxiliary Fig. 2-shown in Figure 4 of consulting, the gear knob comprises 2 heating gears, 1 shutdown gear and 1 cold water gear, be to be mounted 3 switch with mechanical contacts in the gear knob, wherein 1 is the loop of magnetic valve for the control current, and other 2 is loop for the electrothermal tube of 2 grades of heating functions of control.If only adopt 1 heating gear, then the gear knob reduces by 1 gear and reduces by 1 switch with mechanical contact, if adopt 3 heating gears, then the gear knob increases by 1 gear and increases by 1 switch with mechanical contact, by that analogy.
Consult Fig. 8-Figure 15 and the auxiliary Fig. 1 that consults, the function that gear knob among the embodiment will be realized is: when the gear knob was threaded to the Off shelves, the 3rd microswitch 13 threes of the second microswitch 12 of the first microswitch 11 of the return passage of control connection magnetic valve 2, the return passage of control connection the first electrothermal tube 31, the return passage of control connection the second electrothermal tube 32 all were off-states; When the gear knob is threaded to the Cold shelves, the 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 the first electrothermal tube 31 and the return passage of control connection the second electrothermal tube 32 is off-states; When the gear knob is threaded to the I shelves, the 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 the first electrothermal tube 31 is conducting states, and the 3rd microswitch 13 of the return passage of control connection the second electrothermal tube 32 is off-states; When the gear knob was threaded to the II shelves, the 3rd microswitch 13 threes of the second microswitch 12 of the first microswitch 11 of the return passage of control connection magnetic valve 2, the return passage of control connection the first electrothermal tube 31, the return passage of control connection the second electrothermal tube 32 all were conducting states.
Therefore, the gear knob among the 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 the knob wheel base 14, thereby making knob rotating shaft 15 can drive rotating disk boss 16 rotates relative to knob wheel base 14, upper fixed seat 18 (also can be bolted fixing) fixed by snap is at knob wheel base 14, and upper fixed seat 18 is in order to supply with above-mentioned first, second, the 3rd microswitch 11,12,13 reach " U " type elastic component 17 is fixed used.The 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 also is the appropriate location that is 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.17 of " U " type elastic components that are fixed on upper fixed seat 18 are in order to be stuck in the knob rotating shaft 15, its position of rotating gear to be defined.Gear knob 1 among the embodiment is 4 grades, therefore have a foursquare part to cooperate with this " U " type elastic component 17 in the knob rotating shaft 15 and realize the restriction of 4 gear positions, " U " type elastic component 17 herein also can be replaced to realize identical function by other gear stoppers; The conventional design that is designed to the gear knob herein no longer describes in detail.
Need to prove, knob wheel base 14 also has a tube connector 141, be used for being connected to water pipe, establish pressure switch in the knob wheel base 14, it is the construction of switch that utilizes 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 of being located at knob wheel base 14 can touch in suitable gear positions three microswitches 11,12,13 contact, namely this gear knob 1 only has and just has gear control function in the water pressure of the existence situation; The structural design of this pressure switch is for the safeguard measure on the electric heater use safety, also has to exist identical or the similar structures design in the gear knob of some electric heaters, no longer is described in detail therewith.
Certain, the gear knob is gone back fixed cover in knob rotating shaft 15 and is connected to a knob handpiece (not shown), can rotate this gear knob with the have gentle hands pine to make things convenient for the user, and this part is conventional design, no longer describes in detail.
Below in conjunction with accompanying drawing 12-15 and the auxiliary Fig. 8-11 that consults, rotating disk boss 16 is elaborated in 4 different gear positions and first, second, third microswitch 11,12,13 triggering situation.Rotating disk boss 16 is designed with 3 with it corresponding triggering sections for above-mentioned first, second, third microswitch 11,12,13, is respectively: locational the first triggering section 161 of the spindle central of rotating disk boss 16, between the spindle central of rotating disk boss 16 and outmost turns locational the second triggering section 162 and be positioned at locational the 3rd triggering section 163 of rotating disk boss 16 outmost turns.
The outer contour shape of the first triggering section 161 is that the part of wherein 1/4 circle of a complete circle inwardly lacks and an irregular cycle of formation, this 1/4 circle disappearance part just in time is the Off file location of this gear knob 1, and to make its contact be towards this first triggering section 161 to the fixing positions of the first microswitch 11, only has like this this gear knob 1 when the Off file location, the first triggering section 161 can not touch the contact of the first microswitch 11, and other 3 gear positions all are the contacts that touches the first microswitch 11.In addition, reliably touch in order better to realize the contact, what this first microswitch 11 was selected is to be with lever-type microswitch.
The second triggering section 162 is that outer contour shape is that a round boss inwardly lacks one 1/2 annulus part and formation, the disappearance part of this 1/2 annulus just in time is Off shelves and the Cold file location of this gear knob 1, and the fixing positions of the second microswitch 12 are that to put downwards and make its contact be partly to locate towards the disappearance of 1/2 annulus of this second triggering section 162, like this when this gear knob 1 during in Off shelves and Cold file location, the second triggering section 162 can not touch the contact of the second microswitch 12, and the heating file location of other 2 I shelves and II shelves all is the contact that touches the second microswitch 12.In addition, the contact that can well press the second microswitch 12 in order to touch, the disappearance part of this 1/2 annulus of the second triggering section 162 is the inclined-plane with the transition face of round boss.
The 3rd triggering section 163 is that outer contour shape is that (annulus has certain width for one 1/4 circular, its width is greater than the contact of microswitch) bossing forms, this circular bossing of 1/4 just in time is the II file location of this gear knob 1, and the fixing positions of the 3rd microswitch 13 are that to put downwards and make its contact be 1/4 circular lug boss office towards the 3rd triggering section 163, like this when this gear knob 1 during in the II file location, the 3rd triggering section 163 can touch the contact of the 3rd microswitch 13, other Off shelves, when Cold shelves and I file location, the 3rd triggering section 163 can not touch the contact of the 3rd microswitch 12.In addition, the contact that can well press the 3rd microswitch 13 in order to touch, head, the rear of this circular bossing of 1/4 of the 3rd triggering section 163 are the inclined-plane.
Need to prove, the first, second, third triggering section 161, the 162, the 163rd of rotating disk boss 16 is in order to trigger and to design with first, second, third microswitch 11,12,13, on actual embodiment can be the part be arranged on knob rotating shaft 15 and the part be arranged on the rotating disk boss 16, for example the first triggering section 161 among the accompanying drawing 8-11 is arranged in the knob rotating shaft 15, is positioned at the top with rotating disk boss 16 socket positions; Perhaps rotating disk boss 16 and knob rotating shaft 15 are structures of one, have first, second, third triggering section 161,162,163 on this integrative-structure, and should not adhere rigidly to accompanying drawing in embodiment.
Secondly, consult Fig. 5-shown in Figure 7, in the embodiment of the invention three kinds of modes that the control implementation of water can adopt temp controlled delay, timing time-delay or temperature control to be combined with timing are closed in time-delay and realize.
Embodiment 1:
Consulting and shown in Figure 5 and auxiliaryly consult shown in Figure 2ly, is to adopt temperature to delay time to close the control program of water.First that a temperature detect switch (TDS) of often opening is in parallel with this switch with mechanical contact in the loop of magnetic valve, be connected in series again the loop to magnetic valve, this temperature detect switch (TDS) is according to collecting variations in temperature and a wherein loop in the loop of conducting or shutoff magnetic valve.More specifically: an end of the magnetic valve 2 in control current loop is connecting to neutral line N, and the other end has 2 passages, and passage is the first microswitch 11 in the gear knob 1, and another passage is a temperature detect switch (TDS) of often opening 6.The control heating circuit then is respectively the second microswitch 12 to be serially connected with the first electrothermal tube 31 to consist of the first heating circuit and the 3rd microswitch 13 is serially connected with the second electrothermal tube 32 formations the second heating circuit, this temperature detect switch (TDS) of often opening 6 is installed in the position of the water pipe that closes on hot water, changes with more accurate collecting temperature and realizes the switching over operation.
In conjunction with above-mentioned explanation about gear knob 1 as can be known: when electric heater not yet uses, when gear knob 1 is in the Off shelves, microswitch 11,12,13 is off-state, temperature detect switch (TDS) 6 also is in off-state, this moment, electric heater current and heating circuit all disconnected, and electric heater not flowing water does not heat yet.When gear knob 1 is threaded to the Cold shelves, the first microswitch 11 closures, second, third microswitch 12,13 disconnects, temperature detect switch (TDS) 6 also is in off-state, this moment, electric heater current loop conducting but heating circuit disconnected, and electric heater flowing water but do not heat namely flows out cold water.When gear knob 1 is threaded to the I shelves, first, second microswitch 11,12 closures, the 3rd microswitch 3 disconnects, electric heater current loop conducting this moment, and the first heating circuit conducting, but the second heating circuit disconnects, warm water is namely flowed out in electric heater flowing water and one grade of heating.In like manner, when gear knob 1 was threaded to the II shelves, first, second, third microswitch 11,12,13 was all closed, electric heater current loop conducting this moment, and the equal conducting of first, second heating circuit, hotter hot water is namely flowed out in electric heater flowing water and two grades of heating.
Consult again Fig. 1 and Fig. 8-shown in Figure 15; when gear knob 1 is threaded to the Off shelves from hot water shelves I shelves or II shelves; the passage of the first microswitch 11 disconnects; but because the first electrothermal tube 31 or first; the second electrothermal tube 31; 32 exist than Gao Yuwen; the temperature of the water pipe in the electric heater is still higher; temperature detect switch (TDS) 6 closures; 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 is just replied off-state; and will disconnect magnetic valve 2 for electric channel, and cut off current in the water pipe of electric heater, thereby realize that time-delay closes the water conservation function.In addition; this electric heater is electrically connected with the AC city by terminal box 5, and is connected in series a normally closed temperature detect switch (TDS) (TCO) 4 in total electric loop, is used for global protecting; when electric heater abnormal fault and during excess Temperature, this temperature detect switch (TDS) 4 cuts off total for electric channel.The scheme advantage that this temp controlled delay closes water is: can change and Intelligent time delay pass water according to coolant-temperature gage.
Embodiment 2:
Consulting and shown in Figure 6 and auxiliaryly consult shown in Figure 3ly, is to adopt timing to delay time to close the control program of water.First a control panel is serially connected with this switch with mechanical contact in the loop of magnetic valve, be connected in series again the loop to magnetic valve, this control panel is that switching signal with this switch with mechanical contact in the loop of magnetic valve is as triggering signal, according to this start trigger signal timing, after finishing, timing passed through again the loop of relay conducting or shutoff magnetic valve by controller by controller.More specifically: this embodiment is substantially the same manner as Example 1; heating circuit is all identical with the implementation structure of total loop protection; difference is; one end of the magnetic valve 2 in the control current loop of this embodiment is connecting to neutral line N; the other end is to be connected to a control panel 7, controls conducting and closed the switching by the relay unit of this control panel 7.Except relay unit, also have microprocessor (MCU), timing unit, power subsystem on this control panel 7, power subsystem is connected to terminal box, and the AC civil power is converted to the low-voltage direct working power of control panel; The first microswitch 11 is connected to this control panel 7, and the microprocessor of this control panel 7 starts the timing unit timing according to the switching signal of the first microswitch 11 that collects, and control relay cuts off the current loop again after timing finishes.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.The scheme advantage that water is closed in this timing time-delay is: according to the fixing duration pass water of delaying time of timing, and can be because of the temperature acquisition hysteresis quality pass water that lags behind.
Embodiment 3:
Consulting and shown in Figure 7 and auxiliaryly consult shown in Figure 4ly, is to adopt temperature control and timing to close the control program of water in conjunction with delaying time.First a control panel is serially connected with this switch with mechanical contact in the loop of magnetic valve, be connected in series again the loop to magnetic valve, this control panel is that switching signal with this switch with mechanical contact in the loop of magnetic valve is as triggering signal, and this control panel is changed by a Temperature Detector collecting temperature, by controller according to this start trigger signal timing, after the comprehensive judgement of the temperature value that controller is finished and/or gathered according to timing, again by the loop by relay conducting or shutoff magnetic valve.More specifically: this embodiment is substantially the same manner as Example 2, and the implementation structure that heating circuit, current loop and total loop are protected is all identical, and difference is, is to adopt control panel 7 ' to replace above-mentioned control panel 7.This control panel 7 ' is upper also to have a temperature detecting unit, and connects a Temperature probe 8 except relay unit, microprocessor (MCU), timing unit, power subsystem, 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 demonstration control and setting that are used for are seen to the user.In addition, after can comprehensively judging according to the temperature value signal of the switching signal of the first microswitch 11 that collects and Temperature probe 8 by embedded control program in the microprocessor on this control panel 7 ' (MCU), and control relay cuts off the current loop.Preferred control mode is: any condition that is lower than in two conditions of setting threshold when timing end or temperature realizes first namely carrying out the operation that control relay cuts off the current loop.The scheme advantage that this temperature and timing are closed water in conjunction with time-delay is: comprehensively judge delay time pass water, more accurate science according to timing and temperature conditions; In addition, after any breaks down in timing unit or the temperature detecting unit, do not affect the control that water is closed in time-delay, safer.
Although specifically show and introduced the present invention in conjunction with preferred embodiment; but the those skilled in the art should be understood that; within not breaking away 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, has a shell, at least be provided with the gear knob on the shell, at least be provided with water pipe in the shell, heating and fluid electric control valve, heating energising is used for the flowing water in the flow heated water pipeline, the fluid electric control valve then is used for controlling the current break-make in the water pipe, it is characterized in that: described gear knob has been mounted at least 2 switch with mechanical contacts, when the gear knob rotates to different gear by knob, the combination of exporting several groups of on off states with the touching whether various combination mode of above-mentioned switch with mechanical contact machinery, these switch with mechanical contacts are connected in series to the loop of heating and the loop of fluid electric control valve, thereby realize the break-make control to heating and current, wherein this switch with mechanical contact in the loop of fluid electric control valve is connected a time-delay control module and come the loop of convection cell electric control valve to carry out time delayed turn-off, to realize the flowing water time delayed turn-off control of water heater.
2. direct-heating type electric heater according to claim 1, it is characterized in that: described time-delay control module is that temp controlled delay is realized, specifically: first that a temperature detect switch (TDS) of often opening is in parallel with this switch with mechanical contact in the loop of fluid electric control valve, be connected in series to the loop of fluid electric control valve, this temperature detect switch (TDS) is according to collecting variations in temperature and a wherein loop in the loop of conducting or shutoff fluid electric control valve again.
3. direct-heating type electric heater according to claim 1, it is characterized in that: described time-delay control module is that the timing time-delay realizes, specifically: this switch with mechanical contact that first a control panel is serially connected with the loop of fluid electric control valve, be connected in series again to the loop of fluid electric control valve, this control panel is that switching signal with this switch with mechanical contact in the loop of fluid electric control valve is as triggering signal, according to this start trigger signal timing, after finishing, timing passed through again the loop of relay conducting or shutoff fluid electric control valve by controller by controller.
4. direct-heating type electric heater according to claim 1, it is characterized in that: described time-delay control module is that temperature control and timing are in conjunction with realizing, specifically: this switch with mechanical contact that first a control panel is serially connected with the loop of fluid electric control valve, be connected in series again to the loop of fluid electric control valve, this control panel is that switching signal with this switch with mechanical contact in the loop of fluid electric control valve is as triggering signal, and this control panel is changed by a Temperature Detector collecting temperature, by controller according to this start trigger signal timing, after the comprehensive judgement of the temperature value that controller is finished and/or gathered according to timing, again by the loop by relay conducting or shutoff fluid electric control valve.
5. according to claim 3 or 4 described direct-heating type electric heaters, it is characterized in that: also have display unit on the described control panel, be connected in a display screen, be used for showing control and set information.
6. according to claim 1 and 2 or 3 or 4 described direct-heating type electric heaters, it is characterized in that: described gear knob comprises a knob wheel base at least, the knob rotating shaft, the rotating disk boss, upper fixed seat is fixed 2 above switch with mechanical contacts, the knob rotating shaft is fixed on the top of rotating disk boss, the bottom nested of rotating disk boss is located in the knob wheel base, thereby making the knob rotating shaft can drive the rotating disk boss rotates relative to the knob wheel base, upper fixed seat is fixed on the knob wheel base, it is fixing used that upper fixed seat is supplied with above-mentioned switch with mechanical contact, and making the rotating disk boss turn to suitable gear positions, its different triggering section can touch the contact of corresponding switch with mechanical contact and make its conducting.
7. direct-heating type electric heater according to claim 6, it is characterized in that: described gear knob also is provided with " U " type elastic component, should be fixed in upper fixed seat by " U " type elastic component, is used for being stuck in the knob rotating shaft, and its position of rotating gear is 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. according to claim 1 and 2 or 3 or 4 described direct-heating type electric heaters, it is characterized in that: described gear knob comprises 2 heating gears, 1 shutdown gear and 1 cold water gear, respectively the Off shelves, the Cold shelves, the I shelves, the II shelves, 3 switch with mechanical contacts have been mounted in the gear knob, wherein 1 is the loop for the fluid electric control valve of control current, other 2 is the loop of heating for 2 grades of heating functions of control, the control of the combination of on off state is specifically: when the gear knob is threaded to the Off shelves, and 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 the first heating, the 3rd switch with mechanical contact three of the return passage of control connection the second heating all is off-states; When the gear knob is threaded to the Cold shelves, the 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 return passage of the second switch with mechanical contact of the return passage of control connection the first heating and control connection the second heating is off-state; When the gear knob is threaded to the I shelves, the second switch with mechanical contact of the return passage of the first switch with mechanical contact of the return passage of control connection fluid electric control valve and control connection the first heating is conducting state, and the 3rd switch with mechanical contact of the return passage of control connection the second heating is off-state; When the gear knob was threaded to the II shelves, the 3rd switch with mechanical contact three of the second switch with mechanical contact of the return passage of the first switch with mechanical contact of the return passage of control connection fluid electric control valve, control connection the first heating, the return passage of control connection the second heating all was 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, respectively the Off shelves, the Cold shelves, the I shelves, the II shelves, 3 switch with mechanical contacts have been mounted in the gear knob, wherein 1 is the loop for the fluid electric control valve of control current, other 2 is the loop of heating for 2 grades of heating functions of control, the control of the combination of on off state is specifically: when the gear knob is threaded to the Off shelves, and 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 the first heating, the 3rd switch with mechanical contact three of the return passage of control connection the second heating all is off-states; When the gear knob is threaded to the Cold shelves, the 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 return passage of the second switch with mechanical contact of the return passage of control connection the first heating and control connection the second heating is off-state; When the gear knob is threaded to the I shelves, the second switch with mechanical contact of the return passage of the first switch with mechanical contact of the return passage of control connection fluid electric control valve and control connection the first heating is conducting state, and the 3rd switch with mechanical contact of the return passage of control connection the second heating is off-state; When the gear knob was threaded to the II shelves, the 3rd switch with mechanical contact three of the second switch with mechanical contact of the return passage of the first switch with mechanical contact of the return passage of control connection fluid electric control valve, control connection the first heating, the return passage of control connection the second heating all was conducting states.
11. direct-heating type electric heater according to claim 7, it is characterized in that: described gear knob comprises 2 heating gears, 1 shutdown gear and 1 cold water gear, respectively the Off shelves, the Cold shelves, the I shelves, the II shelves, 3 switch with mechanical contacts have been mounted in the gear knob, wherein 1 is the loop for the fluid electric control valve of control current, other 2 is the loop of heating for 2 grades of heating functions of control, the control of the combination of on off state is specifically: when the gear knob is threaded to the Off shelves, and 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 the first heating, the 3rd switch with mechanical contact three of the return passage of control connection the second heating all is off-states; When the gear knob is threaded to the Cold shelves, the 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 return passage of the second switch with mechanical contact of the return passage of control connection the first heating and control connection the second heating is off-state; When the gear knob is threaded to the I shelves, the second switch with mechanical contact of the return passage of the first switch with mechanical contact of the return passage of control connection fluid electric control valve and control connection the first heating is conducting state, and the 3rd switch with mechanical contact of the return passage of control connection the second heating is off-state; When the gear knob was threaded to the II shelves, the 3rd switch with mechanical contact three of the second switch with mechanical contact of the return passage of the first switch with mechanical contact of the return passage of control connection fluid electric control valve, control connection the first heating, the return passage of control connection the second heating all was conducting states.
12. direct-heating type electric heater according to claim 8, it is characterized in that: described gear knob comprises 2 heating gears, 1 shutdown gear and 1 cold water gear, respectively the Off shelves, the Cold shelves, the I shelves, the II shelves, 3 switch with mechanical contacts have been mounted in the gear knob, wherein 1 is the loop for the fluid electric control valve of control current, other 2 is the loop of heating for 2 grades of heating functions of control, the control of the combination of on off state is specifically: when the gear knob is threaded to the Off shelves, and 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 the first heating, the 3rd switch with mechanical contact three of the return passage of control connection the second heating all is off-states; When the gear knob is threaded to the Cold shelves, the 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 return passage of the second switch with mechanical contact of the return passage of control connection the first heating and control connection the second heating is off-state; When the gear knob is threaded to the I shelves, the second switch with mechanical contact of the return passage of the first switch with mechanical contact of the return passage of control connection fluid electric control valve and control connection the first heating is conducting state, and the 3rd switch with mechanical contact of the return passage of control connection the second heating is off-state; When the gear knob was threaded to the II shelves, the 3rd switch with mechanical contact three of the second switch with mechanical contact of the return passage of the first switch with mechanical contact of the return passage of control connection fluid electric control valve, control connection the first heating, the return passage of control connection the second heating all was conducting states.
13. according to claim 1 and 2 or 3 or 4 described direct-heating type electric heaters, it is characterized in that: described switch with mechanical contact is microswitch.
14. according to claim 1 and 2 or 3 or 4 described direct-heating type electric heaters, it is characterized in that: described fluid electric control valve is magnetic valve.
15. according to claim 1 and 2 or 3 or 4 described direct-heating type electric heaters, it 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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| CN103075811A true CN103075811A (en) | 2013-05-01 |
| CN103075811B CN103075811B (en) | 2016-01-06 |
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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) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103940076A (en) * | 2014-05-09 | 2014-07-23 | 卓元廉 | Minitype water heater |
| GB2511368A (en) * | 2013-02-28 | 2014-09-03 | Quanduo Hou | Instant electric water heater |
| CN106440395A (en) * | 2016-12-09 | 2017-02-22 | 厦门阿玛苏电子卫浴有限公司 | Switching device for instant electric water heater |
| CN110249188A (en) * | 2017-01-19 | 2019-09-17 | 斯德龙有限两合公司 | The safety device of continuous heaters for emergency shutdown electricity |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB2511368A (en) * | 2013-02-28 | 2014-09-03 | Quanduo Hou | Instant electric water heater |
| GB2511368B (en) * | 2013-02-28 | 2016-05-04 | Hou Quanduo | Instant electric water heater |
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| CN106440395A (en) * | 2016-12-09 | 2017-02-22 | 厦门阿玛苏电子卫浴有限公司 | Switching device for instant electric water heater |
| 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 |
| CN110249188A (en) * | 2017-01-19 | 2019-09-17 | 斯德龙有限两合公司 | The safety device of continuous heaters for emergency shutdown electricity |
| CN110249188B (en) * | 2017-01-19 | 2021-06-01 | 斯德龙有限两合公司 | Safety device for a continuous heater for emergency shutdown |
| US11152177B2 (en) | 2017-01-19 | 2021-10-19 | Stiebel Eltron Gmbh & Co. Kg | Safety device for emergency shut-down of an electric instantaneous water heater |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201309281D0 (en) | 2013-07-10 |
| GB2511368A (en) | 2014-09-03 |
| CN103075811B (en) | 2016-01-06 |
| GB2511368B (en) | 2016-05-04 |
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Effective date of registration: 20180409 Address after: No. 299, Ke Hai Road, national high tech Industrial Development Zone, Qingdao, Shandong Province Patentee after: Qingdao Heatec Electric Co., Ltd. Address before: Xinguang Road, Haicang District of Xiamen city in Fujian province 361000 Xinyang Street No. 8 No. 1 building three layer Patentee before: Hou Quanduo |