CN104490514B - A kind of electric hot water bag with separated of built-in flame-proof switch - Google Patents
A kind of electric hot water bag with separated of built-in flame-proof switch Download PDFInfo
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- CN104490514B CN104490514B CN201510001150.9A CN201510001150A CN104490514B CN 104490514 B CN104490514 B CN 104490514B CN 201510001150 A CN201510001150 A CN 201510001150A CN 104490514 B CN104490514 B CN 104490514B
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Abstract
A kind of electric hot water bag with separated of built-in flame-proof switch, including bag, main body base, cradle and heater members, water space and annular seal space are formed in bag, the air flue being connected with annular seal space is formed in main body base and cradle, passage is provided with cradle, heater members, temperature controller and microswitch are connected on charge circuit, in water temperature heating to temperature control design temperature, drive mechanism, which acts on microswitch, closes it, in temperature controller failure and heater members continuous heating, drive mechanism acts on microswitch under steam pressure driving disconnects it.The advantage of the invention is that：Because annular seal space is connected by the passage on cradle with ambient atmosphere, electric hot-water bag is under normal operating condition, microswitch is in closure state, in temperature controller failure and heater members continuous heating, steam pressure in water space forms enough pressure differentials with atmospheric pressure and disconnects microswitch, and then cut off the electricity supply, prevent that electric hot-water bag blast from hurting sb.'s feelings.
Description
Technical field
The present invention relates to a kind of hot-water bottle, more particularly, to a kind of electric hot water bag with separated of built-in flame-proof switch.
Background technology
Electric hot-water bag is due to deep by all kinds of consumer groups with easy to use, fashionable appearance and cheap and good-quality advantage
Welcome.The heating system for the electric hot-water bag that early stage commercially sells is mainly electric pole type mode of heating, this mode of heating
Two electrodes are ducked in drink, reduce the resistance value of water using sodium chloride is added in water, because charging process reclaimed water is band
Electricity, thus country has prohibited the electric hot-water bag for producing and selling this use electric pole type heating.As improvement, current city
The electric hot-water bag produced and sold on field is all using electrothermal tube or flexible line with heating function heating, with unification filling with blast resistance construction
The mode of electric shelf is carried out, under normal conditions, and a protective effect is played in the temperature control inside electric hot-water bag, is reached in temperature rise
After design temperature, temperature control disconnects.Continuous heating inside electric hot-water bag, is produced in the case of temperature control failure inside electric hot-water bag
A large amount of vapor and then electric hot-water bag starts expansion, the height of setting are expanded into electric hot-water bag, the explosion-proof shelf that charges utilizes thick stick
Rod principle opens the microswitch top inside the explosion-proof shelf that charges, and cuts off and gives electric hot-water bag heating.
Although the electric hot-water bag after this improvement can improve the safety in utilization of electric hot-water bag, and there is also as follows
Several defects：First, the angle for explosion-proof shelf action of charging is fixed, but the style of electric hot-water bag is various, and fabric is inconsistent,
It is different, on electric hot-water bag charge hole position change, charging hole welding electric hot-water bag fabric upper angle change,
The angle of the explosion-proof shelf protection act of charging will be influenceed, these factors can all cause the consistent of explosion-proof shelf protection act of charging
Property it is very poor, coordinate not tacit between explosion-proof shelf and electric hot-water bag due to charging, cause the charging of some electric hot-water bags unstable, have
A little electric hot-water bags do not have due explosion-proof effect, to consumer using unsafe hidden danger is brought, second, explosion-proof using charging
The mode of shelf also has a fatal shortcoming in addition, and electric hot-water bag, which has to horizontal positioned, during charging can play safe guarantor
The effect of shield, present electric hot-water bag all makes down toy type, and shape of product is different, and consumer is seriously inconvenient when charging,
Toy is taken down in charging every time, charged to reinstall later, very inconvenient, if consumer is not the object for appreciation above electric hot-water bag
Tool unloads charging down, in not horizontal positioned when electric hot-water bag charges, and explosion-proof function also will seriously be affected, and consumer is produced
Raw serious security threat, in summary, needs to be further improved the existing electric hot-water bag with explosion prevention function.
The content of the invention
The technical problems to be solved by the invention be for above-mentioned state of the art there is provided one kind it is simple in construction, use
The electric hot water bag with separated of safe built-in flame-proof switch.
The present invention solve the technical scheme that is used of above-mentioned technical problem for：The electricity separation electric heating of the built-in flame-proof switch
Water bag, includes bag, main body base, cradle and heater members, it is characterised in that：Also include temperature controller and microswitch,
Water space and the annular seal space in water space are formed in the bag, described cradle is arranged on main body base, main
The air flue being connected with the annular seal space is formed in housing and cradle, leading to of being connected with air is provided with the cradle
Stomata, the passage is connected by described air flue with annular seal space, described heater members, temperature controller and microswitch string
It is associated on charge circuit, provided with the drive mechanism being engaged with microswitch in described bag, in the water temperature heating of bag
To temperature control design temperature, the atmospheric gas pressure in the air pressure inside and annular seal space of the water space balances each other, and institute
Stating drive mechanism and acting on described microswitch closes the microswitch, in temperature controller failure and heater members continuous heating
In the state of, the steam inside air pressure of the water space increases and forms draught head with atmospheric gas pressure in annular seal space, and described
Drive mechanism acts on described microswitch under the driving of the vapor pressure disconnects the microswitch.
Described drive mechanism can have various structures, it is preferable that described drive mechanism includes：
Guide holder, installed in the outer wall of the annular seal space；
Piston sheet, back and forth slidably reciprocates in described guide holder, and the both sides of piston sheet are respectively communicated with described sealing
Chamber and described water space；
Push rod, keeps synchronizing moving, in pair of the annular seal space cavity wall on described piston sheet and with piston sheet
Position is answered to be provided with the through hole for stretching into annular seal space for the push rod；And
Elastic component, in described guide holder, the elastic component keeps microswitch the active force of piston sheet
There is the trend of closure.
The elastic component can have various structures, it is preferable that described elastic component includes being located at the piston sheet two respectively
The spring and bellows of side, described microswitch is in described annular seal space, and the spring is located to be connected with annular seal space
Side, in the state of water temperature heating to the temperature control design temperature of bag, described spring and bellows is in precommpression
State, and the push rod under the collective effect of pretensioned spring and precommpression bellows with microswitch disengage and open fine motion
Close and close, under temperature controller failure and heater members continuous heating state, steam pressure and bellows in the water space
The elastic force of generation overcomes the resistance of spring and drives push rod to move jointly, and the push rod acts on microswitch and opens fine motion
Shut-off is opened.
In order that piston sheet preferably can isolate to annular seal space and water space, described bellows is silica gel ripple
Manage and be sealingly mounted on described guide holder.
In order to prevent dry combustion method, described charge circuit also includes and the heater members, temperature controller and microswitch phase
The Thermal Cutoffs mutually connected.Once dry combustion method occurs for hot-water bottle, then Thermal Cutoffs fuses, so as to cut off the electricity supply.
In order to be able to indicate heater members whether there is heating, the electric hot-water bag also includes by resistance and charging indicator light series connection
Into charging indication, and described charging indication is connected in parallel on the two ends of the heater members.
Further preferably, described Thermal Cutoffs, temperature controller, resistance and charging indicator light are located at described main body base
It is interior, charging jacks are additionally provided with the top of the cradle, provided with charging contact pin in described charging jacks.
In order to which cradle is fixed on main body base, screw installing hole is provided with described cradle, screw passes through institute
The screw installing hole stated and cradle is fixed on described main body base.Because main body base is typically made of PVC material, fill
Electric seat is typically made of ABS material, thus two kinds are Split type structure, are preferably fixed by screw connection.
In order to prevent that electrothermal tube scorches electric hot-water bag film during heating, described heater members use electrothermal tube, described
Electrothermal tube protective case is arranged with electrothermal tube.Electrothermal tube protective case typically uses plastics spring protective case.
Compared with prior art, the advantage of the invention is that：Annular seal space in the electric hot water bag with separated passes through charging
Passage on seat is connected with ambient atmosphere, electric hot-water bag under normal operating condition, air pressure in water space substantially with
Atmospheric pressure is identical, and microswitch is in closure state, in temperature controller failure and heater members continuous heating, in water space
Steam pressure substantially increases and forms enough pressure differentials with atmospheric pressure, and the pressure differential can be acted in annular seal space by drive mechanism
Microswitch, disconnect microswitch, and then cut off the electricity supply, electric hot-water bag stops heating, prevent that electric hot-water bag blast from hurting sb.'s feelings,
Also, drive microswitch to disconnect by pressure differential so that though electric hot-water bag in charging in not horizontal positioned, its is explosion-proof
Function is also unaffected, so as to further increase the safety in utilization of electric hot-water bag.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention；
Fig. 2 is the circuit theory diagrams of the embodiment of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing embodiment.
As shown in figure 1, the electric hot water bag with separated of the built-in flame-proof switch in the present embodiment includes bag 1, main body base
2nd, cradle 3, heater members, Thermal Cutoffs 5, temperature controller 6, microswitch 7, driving microswitch action drive mechanism,
Resistance 11 and the grade critical piece of charging indicator light 12.
Wherein, bag 1 is internally formed water space 10, is provided with annular seal space 8 in water space, the inside of main body base 2 with it is close
Envelope chamber 8 is connected, and cradle 3 is arranged on main body base 2 and sealed against each other with main body base 2, and being provided with the top of cradle 3 is used for
Connect in the passage 31 of air and annular seal space 8, the present embodiment, the passage is about 2mm or so, so that inside annular seal space 8
Air pressure maintain poised state with the atmospheric pressure outside bag 1 all the time.The top of cradle 3 is additionally provided with charging jacks 32,
Provided with charging contact pin 33 in charging jacks 32.In the present embodiment, annular seal space 8 and cradle 3 are made by ABS material, main body
Seat 2 is made up of PVC material.On cradle 3 be provided with screw installing hole 34, during installation, screw through screw installing hole 34 and incite somebody to action
Cradle 3 is fixed on main body base 2.
As shown in Fig. 2 heater members use electrothermal tube 4, electrothermal tube 4, Thermal Cutoffs 5, temperature controller 6 and microswitch 7
It is serially connected on charge circuit, the charging indication that resistance 11 and charging indicator light 12 are in series is connected in parallel on electrothermal tube 4
Two ends, when charging normal, charging indicator light is lit, charge circuit disconnect when, charging indicator light extinguish.In order to prevent heating
When electrothermal tube 4 scorch electric hot-water bag film, electrothermal tube protective case 41 is arranged with electrothermal tube 4, electrothermal tube protective case 41 is typically adopted
Use plastics spring protective case.In addition, as shown in Figure 1, Thermal Cutoffs 5, temperature controller 6, resistance 11 and charging indicator light 12 are located at
In main body base 2, microswitch 7 is in annular seal space 8.
Drive mechanism in the present embodiment includes guide holder 91, piston sheet 92, push rod 93, spring 94 and bellows 95.Its
In, guide holder 91 is arranged on the outer wall of annular seal space 8；Piston sheet 92 back and forth slidably reciprocates in guide holder 91, and piston sheet 92 is used for
Isolating seal chamber 8 and water space 10, the both sides of piston sheet 92 are respectively communicated with annular seal space 8 and water space 10；Push rod 93 is installed
Synchronizing moving is kept on piston sheet 92 and with piston sheet, is provided with the correspondence position of annular seal space cavity wall and stretches into sealing for push rod 93
The through hole of chamber；Spring 94 and bellows 95 are arranged in guide holder 91 and are located at the both sides of piston sheet 92 respectively, and spring 94 is set
In the side being connected with annular seal space 8 and the microswitch 7 in annular seal space 8.In order to improve in sealing, the present embodiment
Bellows 95 is using the silica gel bellows being sealingly mounted on guide holder 91.
Operation principle：In the condition of normal use, power line insertion charging jacks 32, power supply 13, charging contact pin 33, temperature
Spend fuse 5, temperature controller 6, the microswitch 7 of closure and electrothermal tube 4 and constitute charge circuit, electric hot-water bag normal heating, electricity
Resistance 11 and the composition charging indication of charging indicator light 12 indicate electrothermal tube 4 whether there is heating.Temperature inside electric hot-water bag reaches
The temperature of temperature control setting, temperature controller 6 disconnects, and at this moment the air pressure inside electric hot-water bag is the air pressure and annular seal space in water space 10
Atmospheric pressure in 8 balances each other, now, and spring 94 and bellows 95 are in its pre-compressed state, and push rod 93 is in spring 94 and ripple
No and microswitch 7 is acted in the presence of pipe 95, and microswitch 7 is in closure state.
In the case where temperature controller fails, it is assumed that give electric hot-water bag charging, due to temperature control failure, electrothermal tube persistently gives electric heating
Water bag is heated, and when water temperature is constantly raised, substantial amounts of water vapour is produced inside electric hot-water bag, is reached in the internal pressure of electric hot-water bag
During 25Kpa (this pressure value can adjust as the case may be), i.e. steam pressure in water space 10 and annular seal space 8
Interior atmospheric pressure forms enough draught heads, and the elastic force that the steam pressure and precompressed bellows 95 are produced overcomes spring jointly
94 resistance, and promote push rod 93 to be moved to microswitch 7, microswitch 7 disconnects cutting off the electricity supply in the effect of push rod 93
13, electric hot-water bag stops heating, prevents that electric hot-water bag blast from hurting sb.'s feelings, so that it is guaranteed that the safety in utilization of electric hot-water bag.
It the foregoing is only the preferred embodiment of the present invention, it is noted that for those of ordinary skills,
Under the premise of the principle of the present invention is not departed from, a variety of remodeling or improvement can be carried out to the present invention, such as heater members are except adopting
With outside electrothermal tube, using flexible line with heating function or wire electrode can also be used, but such as microswitch can be with main body base
Integrative-structure, can also be Split type structure with main body base, such as microswitch can be arranged on heater members, these equal quilts
It is considered as within protection scope of the present invention.
Claims (7)
1. a kind of electric hot water bag with separated of built-in flame-proof switch, include bag (1), main body base (2), cradle (3) and
Heater members, it is characterised in that：Also include and water space is formed in temperature controller (6) and microswitch (7), the bag (1)
(10) annular seal space (8) and in water space, described cradle (3) is arranged on main body base (2), main body base (2) and
The air flue being connected with the annular seal space (8) is formed in cradle (3), is provided with and is connected with air on the cradle (3)
Passage (31), the passage (31) is connected by described air flue with annular seal space (8), described heater members, temperature
Control device (6) and microswitch (7) are connected on charge circuit, are provided with and are engaged with microswitch (7) in described bag (1)
Drive mechanism, in the state of water temperature heating to the temperature control design temperature of bag, the air pressure inside of the water space (10)
Balanced each other with the atmospheric gas pressure in annular seal space (8), and the drive mechanism acts on described microswitch (7) and opens the fine motion
Close and close, in the state of temperature controller failure and heater members continuous heating, the steam inside air pressure of the water space (10)
Increase and form draught head with atmospheric gas pressure in annular seal space, and the drive mechanism is acted under the driving of the vapor pressure
Described microswitch (7) disconnects the microswitch；
Described drive mechanism includes：
Guide holder (91), the outer wall installed in the annular seal space (8)；
Piston sheet (92), back and forth slidably reciprocates in described guide holder (91), and the both sides of piston sheet (92) are respectively communicated with institute
The annular seal space (8) and described water space (10) stated；
Push rod (93), keeps synchronizing moving, in the annular seal space cavity wall on described piston sheet (92) and with piston sheet
Correspondence position be provided with and stretch into the through hole of annular seal space for the push rod (93)；And
Elastic component, in described guide holder (91), the elastic component makes microswitch to the active force of piston sheet (12)
(7) trend of closure is maintained；
Described elastic component includes the spring (94) and bellows (95) for being located at the piston sheet both sides respectively, and described fine motion is opened
(7) are closed in described annular seal space (8), the spring (94) is located at the side being connected with annular seal space (8), in the water of bag
Temperature is heated in the state of temperature control design temperature, and described spring (94) and bellows (95) is in its pre-compressed state, and institute
Push rod (93) is stated to disengage with microswitch under the collective effect of pretensioned spring and precommpression bellows and make microswitch (7)
Closure, under temperature controller failure and heater members continuous heating state, steam pressure and ripple in the water space (10)
The elastic force that pipe (95) is produced overcomes the resistance of spring (94) and drives push rod (93) mobile jointly, and the push rod (93) is acted on
Microswitch (7) and disconnect microswitch.
2. the electric hot water bag with separated of built-in flame-proof switch according to claim 1, it is characterised in that：Described ripple
Pipe (95) is silica gel bellows and is sealingly mounted on described guide holder (91).
3. the electric hot water bag with separated of built-in flame-proof switch according to claim 1, it is characterised in that：Described charging
Loop also includes the Thermal Cutoffs (5) being serially connected with the heater members, temperature controller (6) and microswitch (7).
4. the electric hot water bag with separated of built-in flame-proof switch according to claim 1, it is characterised in that：Also include by
The charging indication that resistance (11) and charging indicator light (12) are in series, and described charging indication be connected in parallel on it is described
The two ends of heater members.
5. the electric hot water bag with separated of built-in flame-proof switch according to claim 4, it is characterised in that：Described temperature
Fuse (5), temperature controller (6), resistance (11) and charging indicator light (12) are in described main body base (2), in the charging
Charging jacks (32) are additionally provided with the top of seat (3), provided with charging contact pin (33) in described charging jacks (32).
6. the electric hot water bag with separated of built-in flame-proof switch according to claim 5, it is characterised in that：Filled in described
Electric seat (3) is provided with screw installing hole (34), and cradle (3) is fixed on institute by screw through described screw installing hole (34)
On the main body base (2) stated.
7. the electric hot water bag with separated of the built-in flame-proof switch according to any claim in claim 1 to 6, it is special
Levy and be：Described heater members use electrothermal tube (4), and electrothermal tube protective case (41) is arranged with described electrothermal tube (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510001150.9A CN104490514B (en) | 2015-01-04 | 2015-01-04 | A kind of electric hot water bag with separated of built-in flame-proof switch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510001150.9A CN104490514B (en) | 2015-01-04 | 2015-01-04 | A kind of electric hot water bag with separated of built-in flame-proof switch |
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| Publication Number | Publication Date |
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| CN104490514A CN104490514A (en) | 2015-04-08 |
| CN104490514B true CN104490514B (en) | 2017-07-11 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107303216A (en) * | 2016-04-22 | 2017-10-31 | 扬中市宏彬冷暖设备有限公司 | A kind of electric heating liquid bag |
| CN105832144A (en) * | 2016-05-26 | 2016-08-10 | 成都灯岛科技有限公司 | Improved electric kettle control circuit |
| CN105832146A (en) * | 2016-05-26 | 2016-08-10 | 成都灯岛科技有限公司 | Improved electric kettle control circuit with buzzer |
| CN109674663B (en) * | 2018-12-29 | 2021-04-27 | 中国人民解放军陆军军医大学第一附属医院 | Liquid food feeder for nursing in guardianship room |
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| CN2860432Y (en) * | 2005-12-26 | 2007-01-24 | 邓建威 | Explosion-proof electrical warming bag |
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| CN2689917Y (en) * | 2004-04-13 | 2005-04-06 | 成都彩虹电器（集团）股份有限公司 | Electric heating bag with anti-explosion device |
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| CN204394777U (en) * | 2015-01-04 | 2015-06-17 | 俞秋良 | A kind of electric hot water bag with separated of built-in flame-proof switch |
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| CN2860432Y (en) * | 2005-12-26 | 2007-01-24 | 邓建威 | Explosion-proof electrical warming bag |
| CN202366000U (en) * | 2011-12-14 | 2012-08-08 | 成都彩虹电器（集团）股份有限公司 | Pressure-limiting explosion proofing device |
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| CN104490514A (en) | 2015-04-08 |
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