CN2200141Y

CN2200141Y - Temp. control electrothermal safety water heater

Info

Publication number: CN2200141Y
Application number: CN 94228209
Authority: CN
Inventors: 魏洪亭
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-03-31
Filing date: 1994-03-31
Publication date: 1995-06-07
Anticipated expiration: 2004-03-31

Abstract

The utility model relates to a temperature control electrothermal safety water heater, comprising a water storage container, a tubular electric heating element, an adjustable mercury electric contact thermometer, a residue water tank, a temperature control safety device composed of a miniature motor, two microswitches, an alarm, a relay, a self control heating switch, and a direct-current working power supply. The tubular electric heating element and the temperature sensing head of the adjustable mercury electric contact thermometer are positioned in a residue water tank arranged at the bottom part of the water storage container. The utility model has the advantages that the temperature of the water can be set according to the need, when reaching the needing temperature, the tubular electric heating element can automatically cut off the power supply, and the use is safe. When the water storage container has no water, if a person wrongly operates the heating switch, the tubular electric heating element can not be damaged by dry heating, being beneficial to the safety and the service life of the tubular electric heating element.

Description

Temp. control electrothermal safety water heater

The utility model is the thermostat galvanothermy security personnel water heater that a kind of suitable shower, bath in a tub are used.

At present the electrothermal heater who uses as shower, bath in a tub is greatly to being divided into two big classes, and the one, the water storage heated type, another was a hot type.The water storage heating type water heater is that the water that will be stored in the water container heats by placing the electrothermal tube in the water container, the temperature of its heating is computing time or controlled by timer mostly artificially, temperature is difficult for grasping, particularly when in the water container when anhydrous, as the error starting switch pole easy burn-out electrothermal tube of heating; The underground water of crossing heating water heater and be the lower temperature that water supply pipe is flowed out directly heats, expend the energy, its temperature control is to realize by the size of regulating the running water flow, because the running water water temperature is lower, when discharge was regulated greatly, water temperature was difficult to improve, discharge is regulated hour, though water temperature can raise, be difficult to satisfy shower person's demand, the life security that particularly when electrothermal tube leaks electricity, also can endanger the user owing to discharge is less.

In view of the foregoing, the purpose of this utility model provides the thermostat galvanothermy security personnel water heater that a kind of temperature is adjustable, safe in utilization and can protect electrothermal tube not burnt out.

The purpose of this utility model is achieved in that it comprises water container, electrothermal tube, it is characterized in that also comprising that the surplus water storage tank that places the water container inner bottom part and temperature-sensitive head place the adjustable mercury electric contact thermometer in this surplus water storage tank and place the water container outside by micromachine, two microswitches, alarm, relay, the automatic control temperature control protective device that switch and dc supply constitute of heating, electrothermal tube places in the surplus water storage tank, the normally-closed contact of dc supply in the temperature control protective device in a microswitch and the contact and the micromachine formation loop of adjustable mercury electric contact thermometer, the electrothermal tube heating power supply constitutes the loop through the normally opened contact and the relay of another microswitch, the electrothermal tube two ends link to each other with heating power supply through a pair of normally opened contact of relay, have control two microswitches on the miniature electrical machinery axle and touch and close or touch disconnected eccentric cam.During work, by adjustable mercury electric contact thermometer required temperature is set, press the non-self-locking automatic control switch of heating then, make the micromachine counter-rotating, on it with eccentric cam the normally opened contact of one microswitch is pressed closure, make the relay adhesive, the closed electrothermal tube of its a pair of normally opened contact is connected heating power supply.When water temperature in the water container reaches temperature required, the contacting of adjustable mercury electric contact thermometer, micromachine begins just to change, on it with eccentric cam the normally-closed contact of another microswitch is pressed disconnection, the micromachine stall, alarm sends alarm sound, when micromachine just changes, its normally opened contact of microswitch of control electrothermal tube work disconnects, and a pair of normally opened contact of relay is also disconnected thereupon, and electrothermal tube and heating power supply disconnect.

In order to improve security personnel's performance, the mechanical type Drawing switch of a band double-contact also can be set between electrothermal tube and heating power supply, thoroughly disconnect to guarantee electrothermal tube and heating power supply.

The utility model has the advantages that: (1) water heating-up temperature can be set as required, stops heating and warning when reaching temperature required automatically, is convenient to the bather and grasps water temperature accurately; When (2) water temperature reached temperature required, electrothermal tube cut off the power supply automatically, thereby safe in utilization; (3) electrothermal tube places in the surplus water storage tank, when in the water container when anhydrous, surplus water storage tank is some water still also, this low amounts of water is heated when the maloperation heater switch very soon, the mercury electric contact thermometer is the very fast value of reaching capacity thereupon also, make it to be stopped heating at once, thereby can effectively prevent electrothermal tube by " dry combustion method ", the security personnel that are of value to electrothermal tube lengthen the life.

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the utility model circuit theory diagrams.

Fig. 3 is temperature control protective device partial structurtes schematic diagrames.

Fig. 4 is surplus water storage tank structural representation.

With reference to figure 1-4, the utility model mainly is made of water container 1, surplus water storage tank 6, adjustable mercury electric contact thermometer 7, electrothermal tube 14 and temperature control protective device 20.Wherein the temperature-sensitive head of electrothermal tube 14 and adjustable mercury electric contact thermometer 7 places in the surplus water storage tank 6 of water container 1 inner bottom part; Temperature control protective device 20 is by battery DC, micromachine 16(D), microswitch 18(K1), 19(K2), alarm KD, relay J 1, the automatic control switch AN1 that heats forms, it is temperature required to set the user by adjustable mercury electric contact thermometer 7, when pressing non-self-locking automatic control when heating switch AN1, micromachine 16(D) begins counter-rotating, its the axle on eccentric cam 17 with microswitch 19(K2) normally opened contact (1,2) press closure, make relay J 1 adhesive, its a pair of normally opened contact J1-1 and J1-2 closure, make electrothermal tube 14(RW) and the 220V power connection, begin the water in the water container 1 is heated, when water temperature reaches the temperature value that the user sets, the contact t of adjustable mercury electric contact thermometer 7 connects, alarm KD work, send alarm signal, micromachine 16(D meanwhile) beginning is just changeed, the eccentric cam of being with 17 leaves microswitch 19(K2 on its axle) press microswitch 18(K1 behind the Rotate 180 degree), make this switch normally-closed contact (1,3) disconnect, the micromachine stall, when eccentric cam 17 leaves microswitch K2, this switch normally opened contact (1,2) disconnect, relay J 1 dead electricity, its a pair of normally opened contact J1-1, J1-2 also disconnects thereupon, thereby cut off the power supply of electrothermal tube RW, the water that makes it to stop in the water container heats.

Sequence number 11(LB among Fig. 1) for being with the mechanical type Drawing switch of double-contact, sequence number 12 is the stay cord of this switch, it simultaneously also is restriction water filling stay cord, being about to this stay cord leaves behind, its link of being with hangs over when linking up with on 15, both the mechanical type Drawing switch 11(LB of pulling off strips double-contact), also automatic control Water filling valve 8 is closed simultaneously, make it at electrothermal tube 14(RW) outage situation under, also stop to water container 1 water filling.Sequence number 13 is single restriction water filling stay cord.Pondage can be decided according to user's request in the water container 1, show that by water level ball float is observed water container middle water level situation in the gauge line 2 by the user, when reaching the required pondage of user, the restriction water filling stay cord 13 and hanging on the hook 15 of leaving behind, automatic control Water filling valve 8 is just closed, and stops water filling.

When automatic control Water filling valve 8 is malfunctioning, for preventing spilling water, can one small floating ball 9 be set at the cistern internal upper part, this ball float 9 with connecting rod and microswitch 10(ZB) contact collide, when surpassing maximum height as water level, ball float 9 lifts, its institute's connecting rod of being with is with microswitch 10(ZB) pressing, alarm KD sends the alarm signal, and micromachine just changes, the normally opened contact of microswitch K2 (1,2) disconnects, and electrothermal tube RW stops heating.

For gain of heat speed is accelerated, also can an arc diaphragm 21 be set in a side upper edge of surplus water storage tank 6, the temperature-sensitive head place that is positioned at adjustable mercury electric contact thermometer in the surplus water storage tank 6 is provided with a samming current limliting dividing plate 22.After cold water in surplus water storage tank 6 is at first heated, make the interior pressure of this storage tank greater than the outer hydraulic pressure of groove, hot water after heating under the effect of arc diaphragm 21 outside groove the bottom of water container gush out, the hot water of gushing out forms eddy current, the back is by cold water liter that heavy hydrone presses, the heavy cold water of meanwhile surplus water storage tank 6 other ends (temperature-sensitive head place) replenishes in samming current limiting plate 22 flows into surplus water storage tank rapidly, because surplus water storage tank external and internal pressure has difference, cistern 1 interior water storage alternate cycles in the process of heating is flowed, make it to quicken the gain of heat speed of water, also be beneficial to energy-conservation simultaneously.

Sequence number

3,4,5 among Fig. 1 is respectively shower external tapping, gap, drinking-water external tapping, and this water heater both can be used as shower usefulness, also can be used as family's water container or kettle simultaneously.Symbol TB, JK, NL are respectively plug, electrothermal tube power plug, power supply (220V) plug that is connected adjustable mercury electric contact thermometer among Fig. 1 and Fig. 2.AN2 is for manually stopping the switch of heating.

Claims

1, a kind of thermostat galvanothermy security personnel water heater, it comprises water container, electrothermal tube, it is characterized in that also comprising that the surplus water storage tank that places the water container inner bottom part and temperature-sensitive head place the adjustable mercury electric contact thermometer in this surplus water storage tank and place the water container outside by micromachine, two microswitches, alarm, relay, the automatic control temperature control protective device that switch and dc supply constitute of heating, electrothermal tube places in the surplus water storage tank, the normally-closed contact of dc supply in the temperature control protective device in a microswitch and the contact and the micromachine formation loop of adjustable mercury electric contact thermometer, the electrothermal tube heating power supply constitutes the loop through the normally opened contact and the relay of another microswitch, the electrothermal tube two ends link to each other with heating power supply through a pair of normally opened contact of relay, have control two microswitches on the miniature electrical machinery axle and touch and close or touch disconnected eccentric cam.

2, thermostat galvanothermy security personnel water heater according to claim 1 is characterized in that also can being provided with a mechanical type Drawing switch of being with double-contact between electrothermal tube and heating power supply.

3, thermostat galvanothermy security personnel water heater according to claim 1 is characterized in that in a side upper edge of surplus water storage tank one arc diaphragm being set, and the temperature-sensitive head place that is positioned at adjustable mercury electric contact thermometer in the surplus water storage tank is provided with a samming current limliting dividing plate.