CN2593753Y

CN2593753Y - Explosion-proof thermostatic electric heating water bag

Info

Publication number: CN2593753Y
Application number: CN 02276674
Authority: CN
Inventors: 胡建明
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-09-29
Filing date: 2002-09-29
Publication date: 2003-12-24
Anticipated expiration: 2012-09-29

Abstract

The utility model relates to an explosion-proof thermostatic electric heating water bag, which is composed of an outer shell (1), a socket (2), an electrode (3), supports (41), (42), a valve plug (5), a core (6), a valve cap (7), a valve pin (8), a water injecting hole (9), an indicating lamp (10), and an electric conduction needle (11). Water is filled in the explosion-proof thermostatic electric heating water bag, and then the explosion-proof thermostatic electric heating water bag is powered on to store heat for heating. When the utility model is powered on to heat, as the outer shell is inflated to bulge, the electrode (41) is scattered on a water surface to power off to limit temperature. The length of the electrode (41) is changed to limit the high and low of the temperature. If the explosion-proof thermostatic electric heating water bag is powered on for a long time, the electrode (41) is repeatedly bulged (powered off); when the electrode (41) is fell down (powered on), water temperature is fundamentally constant. The utility model can not be exploded because of overheat. When air is inflated excessively, only the top end of the valve cap (7) is pressed down, and then air can be released.

Description

A kind of explosion-proof type constant temperature electric heating water bag

This utility model is a kind of heating household electrical appliance

The Kick type thermostat that present electric hot-water bag, temperature control adopt bimetal leaf to constitute.The low precision of thermostat, and electric hot-water bag do not have means of deflation, in case thermostat lost efficacy can't deenergization the time, electric hot-water bag can be long because of heat time heating time, the water-in-bag gasification causes the explosion accident of outer bag, can't ensure safely.

The purpose of this utility model is to overcome the shortcoming that electric hot-water bag is crossed thermal explosion, makes the hot water bag long time ask that its temperature of energising also remains within the constant scope, and is provided with manual means of deflation.

Below in conjunction with embodiment its principle is described.

Description of drawings:

Fig. 1. the electric hot-water bag facade is analysed and observe signal.

Fig. 2. the local signal in electric hot-water bag plane.

Embodiment 1:

(4-2) valve plug (5), valve inside (6), valve cap (7), valve pin (8), water injection hole (9), display lamp (10), conductive pin (11) constitute this utility model by shell (1), support (2), socket (3), electrode (4-1).

Shell (1) is cut out molding with the PVC nylon taffeta, divides two up and down, through the synthetic sealing bag of high frequency heat.Support (2) is injection molded into U type, hollow with PVC, sealing all around, and its bottom is given and is stayed two through wires holes, and embedding conductive pin (11) is arranged, and its top perimeter is corresponding with top 1 perforate of shell (1), and high frequency heat seal is integral; Socket (3) injection mo(u)lding has face closure in the middle of it, the square hole of upward opening, in bury two of copper plugs, there is hole, a garden on the square hole limit, can insert display lamp (10) in the hole.Socket (3) places in support (2) opening and cements with fluid sealant; Electrode (41) (42) injection mo(u)lding, be garden platform shape, hollow, front end are embedded with sheet metal, end is shape outer, a garden, the outer respectively with the inboard heat seals of two shells, the position symmetry, the sheet metal inboard of electrode (41) (42) is welded with two lead-in wires respectively, passes to give the hole of staying below the support and be connected with copper plug on the socket.Electrode hollow is partly used the resin glue packing; Water injection hole (9) is the garden tubular with soft molded, and there is an annular outer centre, this edge and shell (1) last slice thermal synthesis one, and the water injection hole upper end is passed the hole of opening on the shell (1) last slice and is exposed; Valve plug (5) injection mo(u)lding is Cylinder, and the centre is given and left a bellmouth, can screw in valve inside (6) valve inside (6) and hole wall sealing can not leaked, and valve footpath beyond the Great Wall is slightly larger than the water filling port internal diameter, can directly fill in the water injection hole, and both are fited; Valve inside is general-utility car motorcycle valve inside, and normality is in sealing, presses the top push rod, and the bottom is opened can exit; Valve cap (7) with soft molded be the garden female cap, its internal diameter is slightly less than water injection hole (9) upper end external diameter, is held on the water injection hole, the two is glued, and covers inboard end face a little more than valve inside (6) push rod end face.Valve cap (7) top upper side has hole, a garden, is air vent, and its effect has two: one, bleed passage, and the 2nd, can interiorly insert valve pin (8); Valve pin (8) is used the rigid plastics molding, profile is a little garden rod, external diameter is slightly larger than the air vent on the valve cap, can not deviate from after making it to insert, its front end becomes tabular, and is parallel up and down, and thickness of slab equates with the push rod exposed length of valve inside (6), have a groove in the plate, groove width is identical with the push rod external diameter of valve inside (6).Valve pin inserts from the air vent of valve cap (7), the front end notch is just in time pitched the push rod of valve inside (6), since its thickness of slab just in time with the push rod equal in length of valve inside (6), the knob on push rod top is again greater than the push rod external diameter, even valve inside push rod pressurized also can not moved down, guarantee that like this valve inside (6) can not leak; Refer to that lamp (10) is LED, be contained in socket (3) and give in the hole of staying that a foot is welded in by current-limiting resistance on the copper plug of connection electrode (42), another foot is welded on the conductive pin (11) by wiring.In the shell of sealing, fill with the water that contains 1/1000 salt approximately, so just constituted this utility model.

Use of the present utility model and operation principle: dial valve plug down, inject the water that contains 1/1000 salt, press energize with special-purpose plug cord and socket (3) from water injection hole, two electrodes (4-1) are not (4-2) in water, water converts electric energy to heat energy as the resistance load, and heat energy is gone out to store.Display lamp (10) one foots are connected by the current-limiting resistance and power supply one utmost point simultaneously, and another foot is connected by conductive pin, water and electrode (41), and display lamp is bright.Water is heated the back and raises with water temperature, two interelectrode power can raise, and the gas that produces during because of heating increases two interelectrode distances, can make electric current reduce (power reduction) again, along with increase heat time heating time, gas also increases, and finally makes electrode (4-1) leave the water surface, and heating stops, conductive pin (11) outage, display lamp (10) puts out, and a work process is finished, and hot water bag promptly can be used to heating.If this moment need not, can continue energising, when the reduction of hot water bag temperature, electrode (41) contacts with the water surface again, heat and proceed, in the very short time, the gas of generation makes not only electrode leave water surface heating but also stops, so week and cover the beginning, make the hot water bag temperature constant within the specific limits, its precision can reach in 2 ℃, and the power of holding temperature is also very little, is about 1/20 of normal heating power.After being full of water in the hot water bag, the principal element of decision hot water bag steady temperature height is the length of electrode (41), and electrode is long more, not dark more in water, electrode (41) is little with electrode (42) spacing, and heating power is big, it is long that electrode (41) leaves the water surface time, hot water bag temperature height.Otherwise it is then opposite.For making the unlikely ebuillition of heated of water-in-bag, water temperature should be controlled in 80 ℃, and the length of electrode (41) can be determined by experiment.After the hot water bag cooling, water-in-bag gas covers Yuan Chengshui, and electrode (41) is not again in water, can heat use once more, after repeatedly the repetitiousness heating was used, trapped air can't reduce in the bag, electrode (41) can leave the water surface too early and make the shortening heat time heating time during energising heating, water temperature can reduce, and should exit this moment, during venting, mentioning the hot water bag edge makes venting plug last, door lock (8) is pressed the valve cap top under dialling, and the top is the push rod of valve inside (6) down, and gas is promptly discharged from steam vent.

The utility model has the advantage of and cancelled thermostat, simplified structure reduces cost, in the time of can growing Between the energising, temperature constant can not crossed thermal explosion, it is convenient and safe manually to exit, and is provided with valve pin, Can not leak because accidentally pressing valve cap.

Claims

1, explosion-proof type constant temperature electric heating water bag, constitute by shell, support, socket, electrode, valve plug, valve inside, valve cap, valve pin, water filling port, display lamp, conductive pin, it is characterized in that two electrodes are injection molded into the garden platform shape of hollow, front end embeds sheet metal, the sheet metal inboard is welded with a lead, two leads pass duct below the frame, directly with socket on two copper plugs be connected respectively, two electrodes respectively symmetrical heat seal in shell inboard up and down.

2, explosion-proof type constant temperature electric heating water bag as claimed in claim 1, it is characterized in that the valve plug becomes the garden cylindricality, middle duct screws in valve inside, and the valve plug is filled in the water injection hole, and valve cap becomes garden lid shape, there is steam vent the side, top, valve cap covers on water injection hole and is glued, and valve pin is a little garden post, becomes the last period tabular, the centre has a groove, and valve pin inserts the aerofluxus push rod of pitching in the steam vent on the valve inside.