CN2677816Y

CN2677816Y - Intelligent electric water heater

Info

Publication number: CN2677816Y
Application number: CN 200420041420
Authority: CN
Inventors: 李犁
Original assignee: XI'AN ZIWEI SYSTEM ENGINEERING Co Ltd
Current assignee: XI'AN ZIWEI SYSTEM ENGINEERING Co Ltd
Priority date: 2004-01-08
Filing date: 2004-01-08
Publication date: 2005-02-09
Anticipated expiration: 2014-01-08

Abstract

The utility model belongs to an intelligent electric water heater, comprising a shell, an inner bladder installed in the shell, an electrothermal tube mounted in the inner bladder, a water inlet pipe and a water outlet pipe which are connected with the inner bladder and a sprinkler and an electronic control loop which are connected with the water outlet pipe. A parallel flow hydraulic pressure power switch and a choked hydraulic pressure circuit breaking switch are mounted on the water inlet pipe. The utility model is mainly characterized in that the inner bladders of double layers are adopted and a screw type electrothermal tube is installed in the inner bladder, which can improve calorific efficiency. The adoption of the structure can make power consumption decreased to the capacitance permissive degree of common residential building distribution circuit, which makes the instant electric water heater step into families. The water heater realizes the automatic start heating control of water stream via the parallel flow hydraulic pressure power switch installed on the water inlet pipe, realizing the control of water yield and water temperature regulation via one hydrovalve. The utility model is of simple operation, and secondary circuit control is adopted in the control circuit, the utility model is of safety and reliability. A hot air blower which is additionally installed in the utility model can also make the application of the utility model become more convenient, with shower environment more comfortable.

Description

Intelligent electric water heater

Technical field

The utility model belongs to a kind of electric heater, and specifically, it is a kind of intelligent electric water heater.

Background technology

In prior art, electric heater generally is the more of storage-type, and its security is good, and is pollution-free, but needs preheating, and heat time heating time is long, water is subjected to certain limitation continuously, and it is convenient inadequately to use.So people are devoted to electric heater is made Instant heating type, like this, it just can both have the advantage of gas heater Fast Heating, also can overcome the shortcoming that the gas heater pipe laying is many and need to install the forced-ventilated airduct simultaneously.Some quick electric water heaters that Chinese patent is announced as ZL88205668.1, ZL94216964.6, add thermal control though can finish automatic startup of current, but can not be preferably in conjunction with the adjusting control of finishing the water temperature and the water yield, and heating is controlled to be the empty system in primary circuit, and security is bad.What is more important is relatively poor aspect the thermal efficiency of electric heater, and its power consumption nominal just can reach the effect of Fast Heating at least more than 5000W, and big like this power consumption is difficult to be allowed by general house power distribution capacity of trunk.

The utility model content

The purpose of this utility model is at the deficiency in the prior art, provides a kind of and finishes that the Instant heating type electronically controlled while can finish preferably again that the water temperature and the water yield are regulated and thermal efficiency height, less, the safe and reliable intelligent electric water heater of power consumption.

For achieving the above object, solution of the present utility model is as follows:

It comprises a shell, water inlet pipe that is located at inner bag in the shell, is contained in electrothermal tube in the inner bag, joins with inner bag and outlet pipe, with shower nozzle and an electronic control circuit that outlet pipe joins, its improvement is:

Described inner bag is bilayer or multilayer inner bag, be provided with the water inlet that joins with described water inlet pipe in the lower end of this inner bag, be provided with the delivery port that joins with described outlet pipe in the upper end of this inner bag, the described electrothermal tube that is contained in the inner bag is spiral electrothermal tube, and following current hydraulic pressure power switch and choked flow hydraulic pressure cut-off switch are housed on described water inlet pipe;

Described electronic control circuit is made up of hydraulic pressure switch control loop and heating execution loop, and described hydraulic pressure switch control loop is connected with power supply by the control coil of described following current hydraulic pressure power control switch, choked flow hydraulic pressure outage gauge tap and heating electromagnetic switch at least and constituted; Connected with power supply by execution contact, the electrothermal tube of air switch, earth leakage protective device, heating electromagnetic switch at least and constitute in described heating execution loop.

The further improvement project of the utility model is:

Be provided with heat-insulation layer in above-mentioned double-layer inner containers appearance.

It also can be provided with an air-heater; and the control loop of described air-heater in parallel between the execution contact of the earth leakage protective device of carrying out the loop in described heating and heating electromagnetic switch, this control loop is connected by manual power switch, semiconductive ceramic heating element and small blower and is constituted.

By above-mentioned solution as can be seen, the utility model has adopted double-layer inner containers and spiral electrothermal tube structure, double-layer inner containers can reduce heat-energy losses, if add the loss that the outer heat-insulation layer of inner bag can reduce heat energy more, spiral electrothermal tube can make the volume of heating source increase greatly, and cold water enter from the inner bag lower end interior but the heat pipe thermal treatment zone, discharge from inner bag upper end then, make cold water longer, thereby improve the thermal efficiency of whole water heater greatly in the path of the thermal treatment zone.Adopt such structure can make power consumption be reduced to the degree that ordinary residence distribution line capacity allows, make the instant electric water heater can come into family.Simultaneously, this water heater has also realized that by the following current hydraulic pressure power switch that is located on the water inlet pipe current start the control of heating automatically, and realizes the control that water yield and water temperature are regulated by a water intaking valve, operates very simple.Moreover control circuit adopts secondary circuit control, and is more safe and reliable than prior art.In addition, the air-heater that it adds also can make the use of this water heater convenient, and the shower environment is more comfortable.

Description of drawings

Fig. 1, structural representation of the present utility model.

The structural representation of Fig. 2, following current hydraulic pressure power switch.

Fig. 3, control loop circuit diagram.

Fig. 4, execution loop circuit figure.

The specific embodiment

Structure of the present utility model and operation principle are described below with reference to the accompanying drawings.

Referring to Fig. 1, piece number 1 is described shell, be provided with a double-layer inner containers 2 in the shell, described helix tube 5 is spirally wound on the internal layer barrel of double-layer inner containers, be provided with water inlet in this double-layer inner containers lower end, water inlet pipe 3 joins with this water inlet, on water inlet pipe 3, be connected to described following current hydraulic pressure power switch 7 and choked flow hydraulic pressure cut-off switch 8, upper end at double-layer inner containers 2 is provided with delivery port, one end and this delivery port of outlet pipe 4 join, the other end of outlet pipe and shower nozzle 9 join, and also are provided with heat-insulation layer 6 in the appearance of double-layer inner containers.

Referring to Fig. 2, described following current hydraulic pressure power switch 7 by a three-way pipe 7.1, be connected hydraulic pressure chamber 7.2 on this three-way pipe middle port, be located at rubber film 7.3 in the hydraulic pressure chamber, be located at piston boit 7.4 on the front end face of hydraulic pressure chamber, be located at the piston boit correspondence position on microswitch 7.5 and the back-moving spring 7.6 of piston boit constitute, wherein microswitch 7.5 is microswitches that have normally opened contact.When having current to pass through to produce hydraulic pressure in the three-way pipe, rubber film 7.3 bulging, promotion piston boit 7.4 moves to right and touches microswitch 7.5, makes its normally opened contact closure; When anhydrous stream in the three-way pipe when losing hydraulic pressure, piston boit 7.4 resets under the effect of back-moving spring 7.6.The structure of described choked flow hydraulic pressure cut-off switch is identical with the structure of this following current hydraulic pressure power switch, and just microswitch is a microswitch 8.5 that has the normally-closed contact switch.When normal water inlet (following current), the normally opened contact closure of following current hydraulic pressure power switch, choked flow hydraulic pressure cut-off switch is little because of following current hydraulic pressure, and piston boit is not enough to touch microswitch, and it keeps its normally off, and described hydraulic pressure switch control loop is switched on; When situation that blocking appears in shower nozzle or pipeline, the hydraulic pressure in the pipeline increases, and piston touches microswitch 8.5, and its normally-closed contact is disconnected, and then described hydraulic pressure control loop is disconnected.

Referring to Fig. 3,4, the electronic control circuit of this water heater is carried out the loop by hydraulic pressure switch control loop among Fig. 3 and the heating among Fig. 4 and is formed.Described hydraulic pressure switch control loop is connected with the 220V AC power and is constituted by the control coil JC of microswitch 7.5,8.5 and heating electromagnetic switch.Heating is carried out the loop by execution contact JC ', the electrothermal tube 5 of air switch 10, earth leakage protective device 11, the heating electromagnetic switch formation of connecting with the 220V power supply.The control loop of described air-heater is connected between the execution contact JC ' of earth leakage protective device and heating electromagnetic switch, and it is made of semiconductive ceramic heating element 12, small blower 13 and gauge tap 14 series connection.When needing this water heater working, earlier air switch 10 is closed a floodgate, interlock earth leakage protective device 11 closures during combined floodgate, can open water valve 15 as shown in Figure 1 then, at this moment, current can enter inner bag by water inlet pipe, again by outlet pipe and shower nozzle following current ejection, at this moment, microswitch 7.5 is connected, and microswitch 8.5 is normally closed, and then the hydraulic pressure switch control loop is connected, simultaneously, the execution contact JC ' closure of the solenoid-operated switch in loop is carried out in heating, and the execution loop is also connected, then electrothermal tube 5 energising heating, through blink, shower nozzle promptly flows out hot water; If shower nozzle, when pipeline has resistance, microswitch 7.5 still is in on-state, and microswitch 8.5 is conflicted and disconnected, and then the hydraulic pressure switch control loop disconnects, and makes heating electromagnetic switch dead electricity and disconnects, and then carries out the loop also to disconnect, and heating stops.When in the loop electric leakage taking place, earth leakage protective device 9 moves, the tripping operation of interlock air switch, and then the loop disconnection is carried out in heating, and heating stops.When the needs hot blast, with gauge tap 14 closures, then semiconductive ceramic heating element 12 generates heat, and sends hot blast by small blower 13.

Referring to Fig. 1, this water heater can be controlled the flow of current by a water valve 15, simultaneously, regulates water temperature.It has carried out accurate test and measurement according to all multi-parameters such as discharge, electric thermal power equivalent, the coefficient of heat conduction, human bathing optimum flow and environment temperatures, drawn the functional relation of above-mentioned parameter at last, thereby determined the adjustable range of flow and water temperature, had the function and the effect of obvious intelligent control.

Claims

1, a kind of intelligent electric water heater, it comprises a shell (1), water inlet pipe (3) that is located at inner bag in the shell, is contained in electrothermal tube in the inner bag, joins with inner bag and outlet pipe (4), and outlet pipe shower nozzle (9) and an electronic control circuit of joining is characterized in that:

1.1, described inner bag is bilayer or multilayer inner bag (2), be provided with the water inlet that joins with described water inlet pipe (3) in the lower end of this inner bag, be provided with the delivery port that joins with described outlet pipe (4) in the upper end of this inner bag, the described electrothermal tube that is contained in the inner bag is spiral electrothermal tube (5), and following current hydraulic pressure power switch (7) and choked flow hydraulic pressure cut-off switch (8) are housed on described water inlet pipe (3);

1.2, described electronic control circuit carries out the loop by hydraulic pressure switch control loop and heating and forms, described hydraulic pressure switch control loop is at least by described following current hydraulic pressure power control switch (7.5), choked flow hydraulic pressure outage gauge tap (8.5) and the control coil (JC) that the heats electromagnetic switch formation of connecting with power supply; Described heating is carried out the loop at least by the execution contact of air switch (10), earth leakage protective device (11), heating electromagnetic switch (JC '), electrothermal tube (5) formation of connecting with power supply.

2, intelligent electric water heater according to claim 1 is characterized in that: be provided with heat-insulation layer (6) in described double-layer inner containers appearance.

3, intelligent electric water heater according to claim 1 and 2; it is characterized in that: in shell, also be provided with an air-heater; and carry out the control loop of described air-heater in parallel between the earth leakage protective device (11) in loop and the execution contact of heating electromagnetic switch (JC ') in described heating, this control loop is by manual power switch (14), semiconductive ceramic heating element (12) and small blower (13) formation of connecting.