CN2564135Y - Explosion-proof electrothermic water bag - Google Patents

Abstract

The utility model comprises a shell, a power supply bracket, a power supply socket, a temperature limiting relay, a power supply indicator light, a heating electrode, an exhaust valve, an exhaust pull rod, a pull rod seat, a water injection opening, a water injection opening plug and a power source plug with cord. When the utility model is in Ohmic heating, the valve of the exhaust valve is opened by the exhaust pull rod to exhaust the air automatically by means of the tension the produced air to the outer shell a hot water bag. When the temperature limiting relay and the exhaust valve are failure, the outer shell is expanded by inflation, the heating electrode can be separated from the water automatically and stops heating, in case the pressure in the bag being too high and bursting.

Description

Explosion-proof electric hot-water bottle

This utility model is a kind of household electrical appliance that are used for carry-on heating in winter.

Now commercially available electric hot water dress, two of PVC nylon taffetas of shell, the edge is through the sealing bag of thermal synthesis different shape, the inner bag full water, the power supply base that is placed with two clavate heating electrodes, electrodes and is located at the hot water bag surface in the bag is communicated with, and wherein also is in series with a temperature limiting relay between electrode and power supply base.After energized, glassware for drinking water between two electrode bars has certain resistance, water is transformed into heat energy as load with electric energy, heat energy is absorbed by water and stores, reach the ceiling temperature of temperature limiting relay when water temperature, temperature limiting relay can be cut off the electricity supply automatically and be finished a work process, and electric hot-water bag promptly can be used as the usefulness of heating.The gas that the major defect of this electric hot-water bag produces when being to switch on heating can not discharged automatically, must exit by the capping plug of manually opening on the water filling port of being located at the hot water bag surface, very convenient dangerous again, more inconvenient when especially child old man uses, in case forget venting, when constantly repetitiousness heats again, gas constantly increases in the bag, pressure strengthens, and can make the water heater explosion, causes the accident.Another shortcoming is, temperature limiting relay is arranged in the middle duct of the plastic stent of fixing two electrode bars, seal with resin glue, be positioned in the water-in-bag with electrode bar is same, because the affinity between resin glue and plastics is poor, the expansion factor of splashing of the two is different again, the slit can appear in the heating that goes round and begins again in water---cooling, water is infiltrated in the temperature limiting relay, cause relay malfunctioning, disconnected not switch power supply causes the accident.

Electric hot-water bag is as the warming articles for use, easy to carry, be not afraid of fall fall, temperature retention time is long, easy to use, price and cost of use are cheap, therefore very popular with users, market prospect is wide, therefore designs a kind of function admirable, safe and reliable electric hot-water bag is imperative.

This utility model provides a kind of function admirable, safe and reliable, as to be provided with automatic exhaust device explosion-proof electric hot-water bottle.

Below in conjunction with embodiment and description of drawings structure of the present utility model and operation principle.

Description of drawings:

Signal is analysed and observe in Fig. 1 explosion-proof electric hot-water bottle front.

The signal of Fig. 2 explosion-proof electric hot-water bottle horizontal layout

The signal of Fig. 3 power plug wire.

Embodiment 1.As Fig. 1, Fig. 2, shown in Figure 3, this utility model is made of shell (1), powered stent (2), power supply base (3), temperature limiting relay (4), electrode (5), air bleeding valve (6), aerofluxus pull bar (7), draw-bar seat (8), water filling port (9), the mouth of a river plug (10), display lamp (11), conductive pin (12) and power plug wire (13).

Shell (1) adopts softish PVC nylon taffeta, divides two up and down, with peripheral thermal synthesis sealing bag.Powered stent (2) is used the flexible PVC molding, and its external form is the oval U-shaped cylindrical body of opening above the following face seal.It is identical with powered stent (2) opening chi to open a bite on shell (1) on a slice, and powered stent (2) is placed the shell inboard, the opening of the two is aimed at, with the top edge and shell (1) the thermal synthesis one of powered stent (2).Powered stent (2) bottom is the garden tubular, inserts temperature limiting relay (4) in it.The both wings bottom is reserved with through wires hole (21), (22) respectively in the middle of the powered stent (2).Through wires hole (21) side also is embedded with a metallic conduction pin (12), and its upper end is exposed in the powered stent (2), and it is outer not in water that the bottom is stretched out in the lower end.Powered stent (2) upper end embeds power supply base (3), the space between power supply base (3) and the temperature limiting relay, and the filling fluid sealant makes the two and powered stent (2) bond in aggregates.Power supply base (3) is oval, overall dimensions and powered stent (2) upper end open is measure-alike, closely cooperate when guaranteeing to embed, power supply base (3) the rigid plastics molding of hard and heatproof, socket aperture is the square hole of bottom sealing, the centre is embedded with two copper conductive poles (31), (32), in order to energized.The jack side of power supply base is reserved the circular duct of bottom sealing, inserts display lamp (11) in the duct, and display lamp is a light emitting diode, and two wiring foots pass the aperture of reserving the bottom, duct and are connected with correlated parts.Two electrodes (5) are used the flexible PVC molding, intercalation electrode sheet (51) and (52) on the support of garden platform shape, two electrode pairs answer heat seal inboard up and down in shell (1), electrode slice (51), (52) fill full heat-proof silica gel and in the space between the shell (1), electrode slice (51), (52) inboard be welded with respectively soft mould copper conductor (511) and) (521), lead is drawn from the semicircle hole that electrode (5) bottom is reserved, pass powered stent (2) respectively and go up the through wires hole of reserving (21), (22) connect with relevant electric parts, gap between lead and the through wires hole seals with glue, can not seep water.The method of attachment of above-mentioned relevant electric parts: electrode slice (51), connect a continue foot of device (4) of limit temperature by lead (511), another foot of temperature limiting relay connects the conductive pole (31) in power supply base (3); Electrode slice (52) directly connects another root conductive pole (32) in the power supply base (3) by lead (521).One foot of display lamp (11) links to each other with conductive pole (32) by a current-limiting resistance, and the another foot is connected with conductive pin (12) by lead.

Air bleeding valve (6) is a valve inside that copper automobile tyre inflation is used, with a metal garden post with holes of its afterbody welding.Air bleeding valve is embedded in the valve seat (61), makes and exposes end to end outside, and valve seat (61) is a cylindrical boss, injection mo(u)lding, and the base of its base and water filling port (9) is integral, and heat seal is in shell (1) last slice inboard.Valve gap (62) is the circular cap shape, injection mo(u)lding, and there are two air vents nearly both sides, top, valve gap (62) is closely buckled on the valve seat (61), the two cements with glue or organic solvent, makes it can not come off, and the use of valve gap has two: one, and the gas that air bleeding valve is emitted can pass through smoothly; The 2nd, the vertical metal of air bleeding valve partly can not exposed, with plan safety.Aerofluxus pull bar (7) is the clava of two ends band hook ring, makes with plastics or corrosion resistant metal, can be more than one or two, and aerofluxus pull bar one end catches on the hole, garden of air bleeding valve end; The other end catches on the circular hole on the draw-bar seat (8), if with many aerofluxus pull bars, also should collude connection mutually between pull bar and the pull bar.Draw-bar seat (8) is a cylinder, and a circular hole is arranged on the post, the inboard thermal synthesis one of the following a slice of its base and shell (1), and the position is corresponding up and down with air bleeding valve (6).Water filling port (9) is the cylinder of bottom sealing, the seat that connects cylindrical shell is positioned at the upper end, be integral with the base of valve seat (61), heat seal is inboard above shell (1) together, should make the bottom have 1/3rd to link to each other with the water filling port wall flatly with living the mouth of a river (9) bottom transverse incision before using, water can flow in the bag from otch.Water filling port plug (10) is a soft cylinder of moulding, and its external diameter is slightly larger than water filling port (9) internal diameter, can closely fill in the water filling port, and water-in-bag can not overflowed.Power plug wire (13) one ends are common single phase poaer supply plugs, and the other end is the power supply plug that can match with power supply base (3), and power plug wire (13) is special-purpose assorted line.The setting of above part and arrangement add that supporting with it power plug wire has promptly constituted explosion-proof electric hot-water bottle.

Using method of the present utility model and operation principle.In bag, fill with clean water from water filling port (9), add millesimal approximately Sal in the water, can reduce like this water resistance, add high-power.Filled in water filling port plug (10), plugged the power supply head, connected the 220V power supply, electric hot-water bag promptly begins heating work.Its operation principle is a utmost point direct and electrode slice (52) connection by lead of power supply, another utmost point is being connected in series temperature limiting relay (4) and is connecting with electrode slice (51), promptly add the 220V alternating voltage between two electrode slices, water between two electrode slices has certain resistance, constantly convert electric energy to heat energy as resistive load and absorbed storage, water temperature is risen by water; A foot of display lamp (11) is connected by the conductive pole (32) of current-limiting resistance and connection electrode sheet (52), the another foot is connected on the conductive pin (12), connect by water in the bag and electrode slice (51), also obtain the 220V alternating voltage, so display lamp (11) is also shinny thereupon, expression electric hot-water bag energising work.In case water temperature rises to the ceiling temperature of temperature limiting relay, relay can automatically cut off being connected of electrode slice (51) and power supply, makes that voltage is O between electrode slice (51) and the electrode slice (52), and heating work stops, display lamp also extinguishes, and has so just finished a work process.Hot water bag promptly can be used as the usefulness of heating.In the process of heating, constantly produce gas, the hot water bag shell is upwards heaved, make air bleeding valve (6) leave the water surface, aerofluxus pull bar (7) also is tightened up, and upwards heaves in case gas increases shell more again, and aerofluxus pull bar (7) will draw back the door closure of air bleeding valve lower end closed, gas is got rid of from air bleeding valve, in case air scavenge makes the door closure of air bleeding valve lower end close automatically under the effect of air bleeding valve inner spring again, just the self-bleeding work process of air bleeding valve.Owing to have the air bleeding valve automatic vent that bag internal pressure can not increased, guarantee that hot water bag can not increase explosion because of pressure.If temperature limiting relay lost efficacy because of various reasons can not deenergization, the energising heating is carried out again for a long time, at this moment the water in the bag can constantly become steam and discharges from air bleeding valve, therefore the water surface also can constantly reduce, electrode slice (51) is separated with the water surface, at this moment heating can stop (display lamp also must be connected with electrode slice (51) because of water and extinguish, and expression work stops) automatically.Guaranteed hot water bag safety.If temperature limiting relay can not cut off the power supply, air bleeding valve again for some reason can not aerofluxus, heating is constantly carried out again, at this moment a large amount of gases of Chan Shenging can make shell (1) upwards heave and make electrode slice (51) and surface deviation, heating also can stop automatically, can therefore not cause the accident explosion-proof principle of the present utility model that Here it is.

The warm device that continues of limit of the present utility model is arranged on the interior unique threading perforation that can seep water of powered stent and uses again glue Shut, water can not infiltrated in the relay, the device that continues can more reliable work; The electrode of heating usefulness is arranged on In up and down two walls of shell, can be when deadly condition automatically with water (load) disengaging, the thermal protection water bag can not Because of the contingency explosion; Convenient safety is used in the setting of automatic exhaust steam valve, and these all are this practicalities Novel major advantage.

Claims (4)

1, explosion-proof electric hot-water bottle, by shell, powered stent, power supply base, temperature limiting relay, electrode, air bleeding valve, the aerofluxus pull bar, draw-bar seat, water filling port, the water filling port plug, display lamp, conductive pin constitutes, it is characterized in that air bleeding valve is fixed in the valve seat, the base heat seal of valve seat is inboard above shell, air bleeding valve is terminal not in shell in the water, the other end stretches out outside the shell, valve gap is stamped in the valve seat upper end, there is steam vent both sides, valve gap top, the inboard is provided with draw-bar seat below in the shell corresponding with air bleeding valve, and the draw-bar seat top is connected with the venting pull bar with vent valve is terminal.

2, its domestic animal of explosion-proof electric hot-water bottle as claimed in claim 1 is characterised in that a foot of display lamp is connecting a conductive pole in the power supply base by current-limiting resistance, another foot is connecting the conductive pin upper end, conductive pin is fixed on the powered stent bottom, and the bottom is passed not in water-in-bag in the lower end.

3, explosion-proof electric hot-water bottle as claimed in claim 1 is characterized in that, two electrodes are to embed metal electrode film on the platform shape support of the garden of injection mo(u)lding, two electrode pairs are answered heat seal both sides up and down in shell, are welded with lead on the electrode slice and link to each other with conductive pole with temperature limiting relay.

4, explosion-proof electric hot-water bottle as claimed in claim 1 is characterized in that temperature limiting relay is arranged on below the power supply base, and in power supply base is sealed in the confession inner support, powered stent be a bottom and all around all the sealing U type cylindrical body, its top edge and shell thermal synthesis one.