CN100581511C - Explosion type electric hot water bag - Google Patents
Explosion type electric hot water bag Download PDFInfo
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- CN100581511C CN100581511C CN200810120500A CN200810120500A CN100581511C CN 100581511 C CN100581511 C CN 100581511C CN 200810120500 A CN200810120500 A CN 200810120500A CN 200810120500 A CN200810120500 A CN 200810120500A CN 100581511 C CN100581511 C CN 100581511C
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- contact spring
- movable contact
- static contact
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- electric hot
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Abstract
An explosion-proof electric hot-water bag comprises a close-type soft bag body, liquid serving as heat accumulation media in the bag body, and a heating element; a protection switch and a stay cord are arranged on the bag body; the protection switch comprises a housing; a movable contact spring, a still contact spring, a reposition element and a movable pull rod are arranged in the housing; and the stay cord can drive the pull rod to make pullback movement. The bag is characterized in that the still contact spring comprises a first still contact spring and a second still contact spring arranged at intervals; the protection switch further comprises a driving medium; and the reposition element is a reed. Compared with the prior art, the bag has the beneficial effects that instant continuity and disconnection can be achieved by adopting the reed matched with the movable contact spring, the still contact spring, the driving medium and the pull rod; rapid contact and tripping off of the movable contact spring and the second still contact spring are guaranteed; the problem of burning off of inner element caused by linearity stress is effectively avoided; and the normal operation of the protection switch is ensured.
Description
Technical field
The present invention relates to a kind of electric hot-water bag, relate in particular to a kind of explosion-proof electric hot-water bottle.
Background technology
Present commercially available electric hot-water bag, the sealing bag that shell is made with the PVC nylon taffeta, fill water in the bag, be placed with two clavate heating electrodes in the bag, electrode is communicated with the power supply base of being located at the hot water bag surface, wherein also be in series with a temperature limiting relay between electrode and power supply base, after the energized, glassware for drinking water between two electrode bars has certain resistance, water is transformed into heat energy as load with electric energy, water temperature raises, and when water temperature reaches the ceiling temperature of temperature limiting relay, temperature limiting relay can be cut off the electricity supply automatically and be finished a work process.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, inconvenience is also dangerous, in case forget venting, gas increases along with constantly heating repeatedly in the bag, pressure is excessive to cause the hot water bag explosion, causes the accident.
Improvement as above-mentioned hot water bag, China utility model patent: ZL02223120.X, a kind of " explosion-proof electric hot-water bottle " (its publication number: CN2564135Y) is disclosed, this patent structure is provided with automatic exhaust device, but its structure more complicated, be difficult for making and produce, functional reliability is also not ideal enough; And for example Chinese utility model patent: ZL200520102925.3, a kind of " electric hot-water bag " (its publication number: CN2807680Y) is disclosed, this patent by the control electrode heating rod with the bag on one's body electrical socket be connected length and the high infraversion malposition of two heated by electrodes rods on holder improves the work susceptiveness, though structure is simple, but water injection rate is wayward, and reliability is also not ideal enough.
For this reason, the applicant has applied for that on August 25th, 2006 application number is 200610053215.5 Chinese invention patent application " a kind of explosion-proof electric hot-water bottle " (publication number: CN19255700A), be provided with protection switch in the bag body of this patent, stay cord, movable contact spring, static contact and back-moving spring are realized explosion-proof setting, though reached safety, but in actual application, we find that movable contact spring contacts conducting with the static contact static contact and disconnection realizes by the back-moving spring of compression, and the elastic force of back-moving spring changes because of the air pressure in the bag body is big or small, air pressure be a progressively linear increase process, so the elastic force of back-moving spring also is linear variation, and then, contact surface between movable contact spring and the static contact also is to reduce gradually, disconnect up to both, rather than the moment disconnection; Otherwise; it also is a linear process that air pressure gradually reduces; and then; contact surface between movable contact spring and the static contact also is to increase gradually; contact conducting fully up to both, the power during owing to energising is bigger, and no matter disconnecting still, turn on process all can cause burning of contact between movable contact spring and the static contact; protection switch is malfunctioning, influences the normal use of hot water bag.
Summary of the invention
Technical problem to be solved by this invention is the explosion-proof electric hot-water bottle that energy moment conducting of a kind of movable contact spring and static contact and disconnection are provided at above-mentioned prior art present situation.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of explosion-proof electric hot-water bottle; comprise closed software bag body, be positioned at its liquid that serves as heat-storage medium and heating element heater; described bag is provided with protection switch and stay cord on one's body; this protection switch is connected on the power circuit of described heating element heater; this protection switch comprises housing, be arranged in intravital static contact, movable contact spring and the return unit that is connected on power circuit of shell and can active back and forth pull bar; this stay cord can drive aforementioned pull bar and retract motion, it is characterized in that
Described static contact comprises first static contact and second static contact that is provided with at interval with this first static contact, this first static contact is Z-shaped, have first kink, pars intermedia and second kink that are connected with power circuit, aforementioned second static contact also is connected with power circuit;
The leading section of described movable contact spring is corresponding with described second static contact, and the middle part of movable contact spring has through hole and allows that first kink of aforementioned first static contact passes,
Described protection switch also comprises is located at L-shaped driving member in the through hole of aforementioned movable contact spring middle part, this driving member rearward end is connected with described movable contact spring rearward end and movable contact spring is linked with driving member, the middle kink of driving member is connected with aforementioned pull bar, and the leading section of driving member then is arranged in the aforementioned pars intermedia and the second kink link position along the length direction of aforementioned pars intermedia;
Described return unit is one to force aforementioned movable contact spring leading section to the close reed of aforementioned second static contact,
Described stay cord is under the stress, and this stay cord forces in described pull bar, spurs described driving member then, and this driving member then acts on described movable contact spring, and forces this movable contact spring leading section to break away from described second static contact to realize the circuit disconnection.
Be convenient to setting is installed, described reed is located between first static contact and the described movable contact spring.
The annexation of reed leading section and movable contact spring is preferably as follows design: described reed leading section stretches into described movable contact spring middle part through hole and offsets with this movable contact spring lower surface, and rearward end then is arranged in the link position of described first kink and pars intermedia.Further, tongue before described reed leading section is extended with one, this preceding tongue promptly offsets with described movable contact spring lower surface, accordingly, described movable contact spring through-hole wall is extended with the first spacing muscle of a pair of spacing aforementioned preceding tongue, and aforesaid preceding tongue is then between the first spacing muscle.
The annexation of reed rearward end and movable contact spring is preferably as follows design: described reed rearward end is extended with a back tongue, accordingly, described first kink and pars intermedia link position have first through hole that wears for aforementioned back tongue, and are provided with the limited block that the aforementioned back of restriction tongue breaks away from this first through hole or first groove in this first through hole.
The annexation of driving member transverse part front end and movable contact spring is preferably as follows design: described transmission front end is extended with a tongue piece portion, and accordingly, described second kink and pars intermedia link position have second through hole that wears for aforementioned tongue piece portion.
Described housing comprises first housing and second housing that is assembled into one with first housing, and described first static contact, two side direction are extended with respectively and are used for the spatial protruding grain of spacing enclosure interior.Protruding grain is used for the installing space of spacing first housing and second housing, guarantees that movable contact spring has enough activity spaces.
Contact well for making, the lobed movable contact of described movable contact spring leading section upper surface, accordingly, the described second stationary contact lower surface convexes with aforementioned movable contact and cooperates to realize the stationary contact of disconnection and conducting.
Compared with prior art, the invention has the advantages that: adopt reed and cooperate movable contact spring, static contact, driving member and pull bar can realize moment conducting and disconnection, the assurance movable contact spring contacts with second static contact and throws off rapidly, avoided burning out the phenomenon of inner member effectively because of linearity is stressed, guaranteed the normal operation of protection switch, safety improves greatly; Overall structure is simple, deft design, and assembling is quick.
Description of drawings
Fig. 1 is the example structure sketch map.
Fig. 2 is a protection switch conducting state sketch map.
Fig. 3 is a protection switch off-state sketch map.
Fig. 4 is the assembly drawing of housing.
Fig. 5 is protection switch axonometric chart (removing the housing and second static contact) for Fig. 2.
Fig. 6 is the stereo amplification figure of first static contact.
Fig. 7 is the stereo amplification figure of movable contact spring.
Fig. 8 is the stereo amplification figure of reed.
Fig. 9 is the stereo amplification figure of driving member.
The specific embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
Embodiment: with reference to shown in Figure 1; explosion-proof electric hot-water bottle in the present embodiment comprises closed software bag body 1; waterproof case 5; temperature controller 6; be positioned at the liquid that serves as heat-storage medium 2 and the heating element heater 7 of bag body 1; bag body 1 is provided with electrical socket 8; protection switch 4 and stay cord 3; this protection switch 4 is connected on the power circuit of heating element heater 7; the temperature controller 6 that bag body 1 is provided with electrical socket 8 and is connected with electrical socket 8; electrical socket 8 can connect a plug 9; bag body 1 also is furnished with an aerofluxus liquid injection hole 10; temperature controller 6; protection switch 4 and electrical socket 8 all are positioned at waterproof case 5; stay cord 3 can drive pull bar 43 and retract motion; stay cord 3 upper ends are connected in waterproof case 5 outer ends; and pull bar 43 tail ends are located in the waterproof case 5; waterproof case 5 is positioned at pull bar 43 inner peripheral portion, and to have elasticity scalable, and when it was flexible, pull bar 43 moved thereupon.
With reference to figure 2, Fig. 3 and shown in Figure 5; protection switch 4 comprises housing, is positioned at the intravital movable contact spring 44 of shell, first static contact 41, second static contact 42, the reed 46 that serves as return unit, driving member 45 and can active back and forth pull bar 43; with reference to shown in Figure 4, housing is covered by first housing 100 and second housing 101 and is assembled into one.
First static contact 41 and second static contact 42 are arranged at intervals in first housing 100, in conjunction with shown in Figure 6, it is Z-shaped substantially that first static contact 41 is substantially, and have first kink 411, pars intermedia 418 and second kink 412 that is connected with power circuit, first static contact, 41 2 side direction are extended with respectively and are used for spacing protruding grain 416, this protruding grain 416 is used for the installing space of spacing first housing 100 and second housing 101, guarantee that movable contact spring 44 has enough activity spaces, second static contact 42 also is connected with power circuit.
In conjunction with shown in Figure 7, movable contact spring 44 has the plates of through hole 441 for the middle part, the lobed movable contact 443 of leading section is also corresponding with the stationary contact 421 of second static contact 42, and the middle part is passed for first static contact 41, and stationary contact 421 cooperates with movable contact 443 to realize that power circuit disconnects and conducting.
In conjunction with shown in Figure 9, driving member 45 is for being L shaped substantially plates, be formed by connecting by vertical part 453 and transverse part 454, for ease of operational excellence, vertical part 453 and transverse part 454 connection angles are generally got less times greater than the angle of 90 degree, and vertical part 453 has a catching groove 455, this catching groove 455 is buckled on these movable contact spring 44 rearward end, transverse part 454 has an eyelet 452, and front end is extended with a tongue piece portion 451, and this tongue piece portion 451 is arranged in second through hole 415 of pars intermedia 418 and second kink, 412 link positions.
In conjunction with shown in Figure 8, reed 46 forces movable contact spring 44 leading sections close to second static contact 42 as return unit, reed 46 is located between first static contact 41 and the movable contact spring 44, specifically be provided with as follows: tongue 461 before reed 46 leading sections are extended with, this preceding tongue stretches into movable contact spring 44 middle part through holes 441 and offsets with these movable contact spring 44 lower surfaces, movable contact spring through hole 441 inwalls are extended with the first spacing muscle 442 of a pair of spacing preceding tongue 461, and preceding tongue 461 is then between the first spacing muscle 442; The rearward end of reed 46 is extended with a back tongue 462, then be arranged in first through hole 413 of first kink 411 and pars intermedia 418 link positions, and this first through hole 413 is provided with the limited block 414 that restriction back tongue 462 breaks away from these first through holes 413.
The upper end of pull bar 43 is arranged in the eyelet 452 of driving member 45.
Stay cord 3 is under the stress, and this stay cord 3 forces in described pull bar 43, spur driving member 45 then, and driving member 45 acts on movable contact spring 44, and forces the stationary contact 421 of movable contact 443 disengagings second static contact 42 of movable contact spring 44 leading sections.
In the motor process, reed 46 is a support motion with the rearward end, and driving member 45 is a support motion with transverse part 454 front ends.
Claims (8)
1, a kind of explosion-proof electric hot-water bottle; comprise closed software bag body (1), be positioned at its liquid that serves as heat-storage medium (2) and heating element heater (7); described bag body (1) is provided with protection switch (4) and stay cord (3); this protection switch (4) is connected on the power circuit of described heating element heater (7); this protection switch (4) comprises housing, be arranged in intravital static contact, movable contact spring (44) and the return unit that is connected on power circuit of shell and can active back and forth pull bar (43); this stay cord (3) can drive aforementioned pull bar (43) and retract motion, it is characterized in that
Described static contact comprises first static contact (41) and second static contact (42) that is provided with at interval with this first static contact (41), this first static contact (41) is Z-shaped, have first kink (411), pars intermedia (418) and second kink (412) that are connected with power circuit, aforementioned second static contact (42) also is connected with power circuit;
The leading section of described movable contact spring (44) is corresponding with described second static contact (42), and the middle part of movable contact spring (44) has through hole (441) and allows that first kink (411) of aforementioned first static contact passes,
Described protection switch also comprises a L-shaped driving member (45), the vertical part (453) of driving member (45) is located in the through hole (441) of aforementioned movable contact spring, and be connected with described movable contact spring (44) rearward end and movable contact spring (44) is linked with driving member (45), the pars intermedia (418) that the transverse part (454) of driving member (45) is followed described first static contact (41) extends, and the front end of this transverse part (454) penetrates in the corresponding hole of first static contact (41);
Described return unit is one to force aforementioned movable contact spring (44) leading section to the close reed (46) of aforementioned second static contact (42);
Described pull bar (43) promptly is connected on the transverse part (454) of described driving member (45), and can under the application of force effect of stay cord (3), spur described driving member (45), then act on described movable contact spring (44), and force this movable contact spring (44) leading section to break away from described second static contact (42) to realize the circuit disconnection.
2, explosion-proof electric hot-water bottle according to claim 1 is characterized in that described reed (46) is located between first static contact (41) and the described movable contact spring (44).
3, explosion-proof electric hot-water bottle according to claim 2, it is characterized in that described reed (46) leading section stretches into described movable contact spring (44) middle part through hole (441) and offsets with this movable contact spring (44) lower surface, rearward end then is arranged in the link position of described first kink (411) and pars intermedia (418).
4, explosion-proof electric hot-water bottle according to claim 3, it is characterized in that described reed (46) leading section is extended with a preceding tongue (461), should promptly offset by preceding tongue with described movable contact spring (44) lower surface, accordingly, described movable contact spring through hole (441) inwall is extended with the first spacing muscle (442) of a pair of spacing aforementioned preceding tongue (461), and aforesaid preceding tongue (461) then is positioned between the first spacing muscle (442).
5, explosion-proof electric hot-water bottle according to claim 3, it is characterized in that described reed (46) rearward end is extended with a back tongue (462), accordingly, described first kink (411) and pars intermedia 418) link position has first through hole (413) that wears for aforementioned back tongue (462), and is provided with the limited block (414) that restriction aforementioned back tongue (462) breaks away from this first through hole (413) in this first through hole (413).
6, explosion-proof electric hot-water bottle according to claim 1, the transverse part front end that it is characterized in that described driving member (45) is extended with a tongue piece portion (451), accordingly, described second kink (412) has second through hole (415) that wears for aforementioned tongue piece portion (451) with pars intermedia (418) link position.
7, explosion-proof electric hot-water bottle according to claim 1, it is characterized in that described housing comprises first housing (100) and second housing (101) that is assembled into one with first housing (100), described first static contact (41) two side direction are extended with respectively and are used for the spatial protruding grain of spacing enclosure interior (416).
8, explosion-proof electric hot-water bottle according to claim 1, it is characterized in that the lobed movable contact of described movable contact spring (44) leading section upper surface (443), accordingly, described second stationary contact (42) lower surface convexes with aforementioned movable contact (443) and cooperates to realize the stationary contact (421) of disconnection and conducting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810120500A CN100581511C (en) | 2008-08-29 | 2008-08-29 | Explosion type electric hot water bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810120500A CN100581511C (en) | 2008-08-29 | 2008-08-29 | Explosion type electric hot water bag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101375814A CN101375814A (en) | 2009-03-04 |
| CN100581511C true CN100581511C (en) | 2010-01-20 |
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ID=40419664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810120500A Expired - Fee Related CN100581511C (en) | 2008-08-29 | 2008-08-29 | Explosion type electric hot water bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100581511C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101874754B (en) * | 2010-05-11 | 2012-02-08 | 佛山市顺德区美美创新电器有限公司 | Safety explosion-proof hand warmer |
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2008
- 2008-08-29 CN CN200810120500A patent/CN100581511C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101375814A (en) | 2009-03-04 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100120 Termination date: 20110829 |