CN2597880Y

CN2597880Y - Quick electric water heater

Info

Publication number: CN2597880Y
Application number: CNU022596399U
Authority: CN
Inventors: 徐多敏
Original assignee: Individual
Current assignee: Xu Duomin
Priority date: 2002-10-09
Filing date: 2002-10-09
Publication date: 2004-01-07
Anticipated expiration: 2012-10-09

Abstract

The utility model relates to a speedier electric water heater, which is directly arranged on a water faucet; a shell, an upper lid and an inner gallbladder of which are all made of plastic component. The utility model is characterized in that: a moveable gallbladder with a water discharge mouth is arranged in the inner of the shell; as water flow through the electric water heater, a jiggle switch is communicated a circuit; as a heating pipe start to work, hot water is excluded from the inner gallbladder water discharge mouth to a water discharge pipe; the joints of the shell and worms in the upper lid do not compact water, bear water pressure directly or is not affected by inner water temperature, thus the plastic is uneasy to age or split; moreover, in the cold north, as the inner water of the electric water heater icing, the moveable inner gallbladder enhance volume of the electric water heater cavity, so as to ensure that the shell and the upper lid do not blow out, increase safety factor of the product and extend service life.

Description

Quick electric water heater

Technical field the utility model relates to a kind of quick electric water heater, is contained on the tap.

The existing quick electric water heater that is contained on the tap of background technology, because cavity is made up of plastic casing and loam cake, the threaded connection place direct contact heat water of housing and loam cake also bears hydraulic pressure, the easily aging embrittlement of plastics, in case inside cavity water build-ups ice, housing and loam cake will spallings, and security performance and service life reduce greatly.

The summary of the invention the purpose of this utility model is that a kind of quick electric water heater will be provided, and it not only can improve the service life of product, and can be used in the freezing environment of possibility, improves the security of products energy.

The utility model is to constitute like this, it directly is contained on the tap, housing, loam cake and inner bag all are working of plastics, it is characterized in that: the inner movable inner bag of taking the mouth of a river out of of placing, between inner bag top and loam cake spring is arranged, there is little O RunddichtringO inner bag top delivery port and loam cake cooperation place, and there is big O RunddichtringO inner bag bottom and housing cooperation place.

The utility model is owing to structurally increased inner bag, O type circle, spring, therefore work as current and pass through water heater, microswitch is connected circuit, when heat-generating pipe is started working, hot water directly is discharged to outlet pipe from the delivery port of inner bag, the threaded connection place of housing and loam cake does not contact with water, directly do not bear hydraulic pressure, not influenced by water temperature inside, so plastics are difficult for aging embrittlement, and in the north of cold, when the water freezing in the water heater chamber, mobilizable inner bag has increased the water heater cavity volume, thereby guarantees that housing and loam cake can spallings, improve the safety coefficient of product, prolonged service life.

Description of drawings is specifically described the utility model below in conjunction with drawings and Examples.

Fig. 1 is the embodiment organigram.

Fig. 2 is the embodiment circuit diagram.

With reference to accompanying drawing, the utility model is directly to be contained on the tap by threeway 10, housing 3, loam cake 1 and inner bag 2 all are working of plastics, it is characterized in that: the inner movable inner bag 2 of taking the mouth of a river out of of placing, when current pass through water heater, microswitch 6 is connected circuit, when heat-generating pipe 12 is started working, by the sealing of little O type circle 15, hot water directly is discharged to outlet pipe 11 from the delivery port of inner bag 2, by the sealing of big O type circle 14, the threaded connection place of housing 3 and loam cake 1 does not contact with water, does not directly bear hydraulic pressure, not influenced by water temperature inside, therefore plastics are difficult for aging embrittlement, and in the north of cold, when the water freezing in the water heater chamber, mobilizable inner bag 2 has increased the water heater cavity volume, thereby guarantee that housing 3 and loam cake 1 can spallings, improved the safety coefficient of product, prolonged service life.

Use for convenience, the controlling organization of microswitch 6 is made up of diaphragm 13, push rod 8, spring 7, and the sensitivity of diaphragm 13 has realized that current one pass through, and push rod 8 drives spring 7 and moves downward, and withstands microswitch 6 and connects circuit.

In order to prevent dry combustion method, be serially connected with thermal circuit beraker 5 in the circuit, in case during the water flow switch short circuit, thermal circuit beraker 5 can cut off circuit rapidly.

In order to help reflecting the energising situation, be serially connected with indicator lamp on the circuit, indicator lamp is installed on the housing.

Open straight-through valve 9 during specific embodiment work, the water flow pressure of water inlet makes diaphragm 13 drive push rod 8 and spring 7 moves downward, withstand microswitch 6, circuit is connected, indicator lamp 4 is bright, heat-generating pipe 12 begins heating, water outlet after the heating arrives outlet pipe 11 through the delivery port of inner bag 2, and loam cake 1 does not directly contact with water, and housing 3 does not contact with water with the threaded connection place of loam cake 1 yet, directly do not bear hydraulic pressure, only bear the tensile force of vertical direction, so the difficult disengagement in threaded connection place, plastics are difficult for aging: Guan Shuishi, spring 7 rebounds diaphragm 13 and push rod 8, microswitch 6 disconnecting circuits.Under the situation that water build-ups ice in cavity, because the volume of the ice of homogenous quantities is greater than the volume of water, inner bag 2 is under the active force that freezes, move upward, spring 16 between inner bag 2 and the loam cake 1 by compression, the volume in the cavity increases, housing 3 is unaffected with the threaded connection place of loam cake 1.

The utility model has been owing to increased movable inner bag 2, so security performance and all being improved service life.In addition, also can regulate the height of water temperature according to the size of discharge.Thermal circuit beraker 5 can prevent effectively that water heater from being burnt out.This product design is reasonable, and is easy to use, and its market prospects are considerable.

Claims

1, a kind of quick electric water heater, be contained on the tap, housing, loam cake and inner bag all are working of plastics, it is characterized in that: the inner movable inner bag of taking the mouth of a river out of of placing, between inner bag top and loam cake spring is arranged, there is little O RunddichtringO inner bag top delivery port and loam cake cooperation place, and there is big O RunddichtringO inner bag bottom and housing cooperation place.

2, quick electric water heater according to claim 1 is characterized in that: water flow switch is made up of diaphragm and microswitch, push rod, spring.

3, according to claim 1 or 2 described quick electric water heaters, it is characterized in that: be serially connected with thermal circuit beraker on the circuit.

4, according to claim 1 or 2 described quick electric water heaters, it is characterized in that: be serially connected with burner on light on the circuit, burner on light is in parallel with heat-generating pipe, and indicator lamp is fixed on the housing.