CN103985594B - Cut-off switch, pressure switch assembly and pressure cooker - Google Patents
Cut-off switch, pressure switch assembly and pressure cooker Download PDFInfo
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- CN103985594B CN103985594B CN201410191487.6A CN201410191487A CN103985594B CN 103985594 B CN103985594 B CN 103985594B CN 201410191487 A CN201410191487 A CN 201410191487A CN 103985594 B CN103985594 B CN 103985594B
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Abstract
The invention provides a kind of cut-off switch, pressure switch assembly and pressure cooker.Wherein, cut-off switch be used for pressure switch with the use of, comprise pole, contact and sudden change part; Pole and contact are all positioned at the top of pressure switch and are installed in rotation in pressure switch, and pole and contact away from one end in one is connected with the shell fragment of pressure switch, another contacts with the contact of pressure switch; Sudden change part is provided with between pole and the adjoining one end of contact.Cut-off switch provided by the invention, structure is simple, easy to assembly, the controllable adjustment of cut-off switch is realized by the selected difference of sudden change part and the difference of screw screw-in depth, that is: the maximum pressure value realizing can bearing when abnormality pressure switch independently sets, when pressure that pressure switch is born arrives the force value of autonomous setting, cut-off switch carries out jumping disconnected with the power supply of opening pressure switch, and what achieve pressure when jumping disconnected is controllable.
Description
Technical field
The present invention relates to field of household appliances, more specifically, relate to a kind of cut-off switch, a kind ofly comprise the pressure switch assembly of this cut-off switch and a kind of pressure cooker comprising this pressure switch assembly.
Background technology
Pressure cooker at work, when its pressure switch lost efficacy owing to causing pressure release, for realizing its fail safe, needed to break heating power supply before pressure release, to realize the power-off protection before pressure release; The scheme that correlation technique is taked is, an extra increase cut-off switch in pressure switch, second protection is carried out to pressure cooker, that is: at the situation incision electric switch absolutely that pressure switch lost efficacy, to realize the power-off protection before decompression of pressure cooker, realize the object of pressure cooker being carried out to duplicate protection by the cooperation of pressure switch and cut-off switch; But, existing cut-off switch is all realize the function of power-off by the induction of signal principle (instead of realizing de-energizing actions by mechanical structure) of electronic component, in use procedure cut-off switch very easily occur improper jumping break, cause its practicality not strong, and bring inconvenience to the use of user.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art.
For this reason, the invention provides a kind of cut-off switch, structure is simple, easy to assembly, the controllable adjustment of cut-off switch is realized by the selected difference of sudden change part and the difference of screw screw-in depth, that is: the maximum pressure value realizing can bearing when abnormality pressure switch independently sets, when pressure that pressure switch is born arrives the force value of autonomous setting, cut-off switch carries out jumping disconnected with the power supply of opening pressure switch, and what achieve pressure when jumping disconnected is controllable.
The embodiment of first aspect present invention provides a kind of cut-off switch, for pressure switch with the use of, comprise pole, contact and sudden change part; Described pole and described contact are all positioned at the top of described pressure switch and are installed in rotation in described pressure switch, and described pole and described contact away from one end in one is connected with the shell fragment of described pressure switch, another contacts with the contact of described pressure switch, described shell fragment can bear the increase of pressure with described pressure switch and occur bending and deformation, and rotates to drive coupled described pole or described contact; Described sudden change part is provided with between described pole and the adjoining one end of described contact, and the described pole be connected with described shell fragment or described contact are when turning to desired location, described sudden change part is deformed into the second hold mode by the first hold mode, described pole or described contact and described contact to be disconnected; Wherein, break jumping that pressure is greater than described pressure switch of the jumping of described cut-off switch is broken pressure.
Cut-off switch provided by the invention, structure is simple, easy to assembly, and be the cut-off switch of mechanical structure formula, difference by selected sudden change part realizes the controllable adjustment of cut-off switch, that is: the maximum pressure value realizing can bearing when abnormality pressure switch independently sets, when pressure that pressure switch is born arrives the force value of autonomous setting, cut-off switch carries out jumping disconnected with the power supply of opening pressure switch, and what achieve pressure when jumping disconnected is controllable.
Wherein, sudden change part has two kinds of hold modes, that is: the state of the first hold mode and the second hold mode, the difference of the folding force that two kinds of hold modes can be born according to sudden change part and mutually converting; And, pressure switch is along with the increase of born pressure, there is downward elastic bending deflection in shell fragment, drive the pole be connected with shell fragment or contact to rotate simultaneously, and in rotation process, form the folding force acting on sudden change part, until sudden change part conversion hold mode makes cut-off switch and contact disconnect (that is: power-off), the part that suddenlys change after pressure reduces still keeps the hold mode (and: maintenance power-off) after conversion, still keeps off-position after realizing pressure release; In addition, the jumping of the cut-off switch pressure that breaks is greater than pressure when pressure switch is normally jumped disconnected, and this jumping pressure that breaks can regulate according to the difference of selected sudden change sheet.
According to one embodiment of present invention, the rotating shaft of described contact is identical with the rotating shaft of described pole.
According to one embodiment of present invention, described contact is positioned at the top of described pole, and described pole is connected with described shell fragment, described contact contacts with described contact.
According to one embodiment of present invention, described contact is contact chip, and described contact chip is provided with shaft hole.
According to one embodiment of present invention, one end of described contact chip be provided with contact with described contact projection, the other end end face on be provided with the first draw-in groove, described pole is provided with second draw-in groove relative with the notch of described first draw-in groove, described sudden change part is installed between the first draw-in groove and described second draw-in groove.
According to one embodiment of present invention, the both sides of described contact chip are provided with support projection, described pole is provided with mounting groove, the cell wall of described mounting groove both sides is provided with support slot, the described other end of described contact chip is positioned at described mounting groove, described support projection is supported on described support slot, and described rotating shaft is positioned at described mounting groove and described shaft hole.
According to one embodiment of present invention, described sudden change part is sudden change sheet, and described shell fragment is connected by screw with coupled described pole or described contact.
The embodiment of second aspect present invention provides a kind of pressure switch assembly, comprising: pressure switch; With the cut-off switch described in above-mentioned any embodiment, described cut-off switch is arranged in described pressure switch.
Pressure switch assembly provided by the invention, structure is simple, easy to assembly, can realize the controllable of power-off pressure.
According to one embodiment of present invention, described pressure switch is in series with described cut-off switch and is connected.
The embodiment of third aspect present invention provides a kind of pressure cooker, includes the pressure switch assembly described in above-mentioned any embodiment.
Pressure cooker provided by the invention, when realizing pressure cooker power-off by mechanical structure, pressure is controllable, and control precision is high, and practicality is good, effectively improves the safety in utilization of user.
In sum, cut-off switch provided by the invention, structure is simple, easy to assembly, and be the cut-off switch of mechanical structure formula, the controllable adjustment of cut-off switch is realized by the selected difference of sudden change part and the difference of screw screw-in depth, that is: the maximum pressure value realizing can bearing when abnormality pressure switch independently sets, when pressure that pressure switch is born arrives the force value of autonomous setting, cut-off switch carries out jumping disconnected with the power supply of opening pressure switch, when achieving disconnected to jumping, pressure is controllable, effectively improve the practicality of pressure switch.
Additional aspect of the present invention and advantage become obvious by description part below, or are recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the decomposition texture schematic diagram of pressure switch assembly one embodiment of the present invention;
Fig. 2 is the structural representation that the sudden change part of the assembly of pressure switch shown in Fig. 1 is in the first hold mode;
Fig. 3 is the structural representation that the sudden change part of the assembly of pressure switch shown in Fig. 1 is in the second hold mode;
Fig. 4 is the sectional structure schematic diagram of pressure cooker one embodiment of the present invention;
Fig. 5 is the A portion structure for amplifying schematic diagram in Fig. 4.
Wherein, the corresponding relation in Fig. 1 to Fig. 5 between Reference numeral and component names is:
11 cut-off switchs, 111 poles, 1,111 second draw-in grooves, 1112 mounting grooves, 1113 support slots, 112 contacts, 1121 projections, 1,122 first draw-in grooves, 1123 support projection, 1124 shaft holes, 113 sudden change parts, 114 screws, 12 pressure switches, 121 shell fragments, 122 contacts, 123 second shell fragments, 124 second contacts.
Embodiment
In order to more clearly understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Set forth a lot of detail in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from mode described here to implement, and therefore, protection scope of the present invention is not by the restriction of following public specific embodiment.
As shown in Figure 1 to Figure 3, cut-off switch 11 provided by the invention, for pressure switch 12 with the use of, comprise pole 111, contact 112 and sudden change part 113, described pole 111 and described contact 112 are all positioned at the top of described pressure switch 12 and are installed in rotation in described pressure switch 12, and described pole 111 and described contact 112 away from one end in one be connected with the shell fragment 121 of described pressure switch 12, another contacts with the contact 122 of described pressure switch 12, described shell fragment 121 can bear the increase of pressure and occur bending and deformation (bending direction that in Fig. 2, arrow represents shell fragment 121) with described pressure switch 12, rotate to drive coupled described pole 111 or described contact 112, described sudden change part 113 is provided with between described pole 111 and the adjoining one end of described contact 112, and the described pole 111 be connected with described shell fragment 121 or described contact 112 are when turning to desired location (that is: pressure arrives the pressure independently set), described sudden change part 113 is out of shape (as shown in Figure 2) to the second hold mode (as shown in Figure 3) by the first hold mode, described pole 111 or described contact 112 to be disconnected with described contact 122, wherein, break jumping that pressure is greater than described pressure switch 12 of the jumping of described cut-off switch 11 is broken pressure.
Cut-off switch 11 provided by the invention, structure is simple, easy to assembly, and be the cut-off switch of mechanical structure formula, difference by selected sudden change part 113 realizes the controllable adjustment of cut-off switch 11, that is: the maximum pressure value realizing can bearing when abnormality pressure switch 12 independently sets, when pressure that pressure switch 12 is born arrives the force value of autonomous setting, cut-off switch 11 carries out jumping disconnected with the power supply of opening pressure switch 12, and what achieve pressure when jumping disconnected is controllable.
Wherein, sudden change part 113 has two kinds of hold modes, that is: the state of the first hold mode and the second hold mode, the difference of the folding force that two kinds of hold modes can be born according to sudden change part 113 and mutually converting; And, pressure switch 12 is along with the increase of born pressure, there is downward elastic bending deflection in shell fragment 121, drive the pole 111 be connected with shell fragment 121 or contact 112 to rotate simultaneously, and in rotation process, form the folding force acting on sudden change part 113, until sudden change part 113 converts hold mode, cut-off switch 11 and contact 122 are disconnected (that is: power-off), the part 113 that suddenlys change after pressure reduces still keeps the hold mode (and: keep power-off) after converting, and still keeps off-position after realizing pressure release; In addition, the jumping of cut-off switch 11 pressure that breaks is greater than pressure when pressure switch 12 is normally jumped disconnected, and this jumping pressure that breaks can regulate according to the difference of selected sudden change sheet.
Under pressure switch normal condition; second shell fragment and the second contact; when pressure increase normally jumps disconnected pressure to pressure switch; second shell fragment is bent downwardly distortion and is separated with the second contact; realize power-off; break jumping that force value (and: the force value of autonomous setting) is greater than pressure switch of jumping due to cut-off switch is broken force value, and cut-off switch plays a protective role and do not carry out jumping disconnected action.
Cut-off switch provided by the invention coordinates with pressure switch; play the effect of duplicate protection; when pressure switch lost efficacy; the jumping of overpressure switch breaks pressure and the jumping reaching cut-off switch is broken during force value; cut-off switch carries out jumping disconnected action; and after pressure reduction, cut-off switch keeps off-position (can carry out hand-reset).
Wherein, the jumping of the pressure switch pressure that breaks is preferably 30 ~ 85Kpa, and the jumping of the cut-off switch pressure that breaks is preferably 100 ~ 245Kpa.
In one embodiment of the present of invention, as shown in Figure 1 to Figure 3, the rotating shaft of described contact 112 is identical with the rotating shaft of described pole 111, to reduce the volume of cut-off switch, make pole, contact and sudden change part be located along the same line, with the reliability improving pole, coordinate between contact and sudden change part simultaneously.
Certainly, contact and pole also can be arranged in parallel (that is: the rotating shaft of the two is parallel to each other, not shown), and can realize the object of the application, its aim does not depart from design philosophy of the present invention yet, should belong to the protection range of the application.
Wherein, as shown in Figure 1 to Figure 3, described contact 112 is positioned at the top of described pole 111, and described pole 111 is connected with described shell fragment 121, described contact 112 contacts with described contact 122.
In view of pole 111 contact with described shell fragment 121, described contact 112 is identical with the principle of the principle that described contact 122 is connected and above-described embodiment, do not repeat them here, but should belong in the protection range of the application.
Preferably, described contact 112 is contact chip, and described contact chip is provided with shaft hole 1124, and rotating shaft is arranged in shaft hole 1124.
And, one end of described contact chip be provided with contact with described contact 122 projection 1121, the other end end face on be provided with the first draw-in groove 1122, described pole 111 is provided with second draw-in groove 1111 relative with the notch of described first draw-in groove 1122, described sudden change part 113 is installed between the first draw-in groove 1122 and described second draw-in groove 1111, drops to prevent sudden change part 113.
Further, the both sides of described contact chip are provided with and support projection 1123, described pole 111 is provided with mounting groove 1112, the cell wall of described mounting groove 1112 both sides is provided with support slot 1113, the described other end of described contact chip is positioned at described mounting groove 1112, described support projection 1123 is supported on described support slot 1113, and described rotating shaft is positioned at described mounting groove 1112 and described shaft hole 1124.
Wherein, as shown in Figures 2 and 3, the upper surface of mounting groove 1112 is cambered surface, and support slot 1113 is arranged on the peak of cambered surface, rotates to be more conducive to pole 111.
Certainly, contact chip also can be the top being directly arranged on pole 111 by rotating shaft, also can realize object of the present invention, should belong to the protection range of the application.
Preferably, described sudden change part 113 is sudden change sheet, and described shell fragment 121 passes through screw 114 (also can be rivet etc.) with coupled described pole 111 or described contact 112 and is connected.
As shown in Figures 2 and 3, be connected by screw 114 with coupled pole 111 for shell fragment 121, wherein shell fragment 121 is provided with screw thread, pole 111 is provided with through hole, the screw rod of screw 114 is connected with threaded engagement through through hole, and the difference of the degree of depth in shell fragment 121 is screwed according to screw 114, control the force value (that is: the nut lower surface that shell fragment 121 drives screw 114 to be moved downward to screw 114 compresses the moment of pole 111) when shell fragment 121 drives pole 111 to move, and then control the jumping of cut-off switch 11 and to break pressure (jumping disconnected after driving pole 111 to move down setpoint distance), that is: the jumping that the difference of the degree of depth screwed according to screw 114 in the screw of shell fragment 121 controls cut-off switch 11 is broken pressure (realize autonomous setting and jump disconnected force value), achieve cut-off switch 11 and jump the controllable of disconnected pressure.
The embodiment of second aspect present invention provides a kind of pressure switch assembly, as shown in Figure 1 to Figure 3, comprising: pressure switch 12; With the cut-off switch 11 described in above-mentioned any embodiment, described cut-off switch 11 is arranged in described pressure switch 12.
Pressure switch assembly provided by the invention, structure is simple, easy to assembly, can realize the controllable of power-off pressure.
More preferably, described pressure switch 12 is in series with described cut-off switch 11 and is connected; This kind of electric connection mode structure is simple, easy to assembly, and fail safe is good, effectively can reduce the manufacturing cost of product.
Certainly, also can be that pressure switch 12 all adopts control system to control with cut-off switch 11, control system be come, to controlled pressure switch 11 power-off, to realize the object of pressure release, also can realize the object of the application by the jumping break signal receiving pressure switch 12 transmission.
The embodiment of third aspect present invention provides a kind of pressure cooker, as shown in Figure 4, includes the pressure switch assembly (as shown in Figure 5) described in above-mentioned any embodiment.
Pressure cooker provided by the invention, when realizing pressure cooker power-off by mechanical structure, pressure is controllable, control reliability and product practicality good, effectively improve the safety in utilization of user.
Wherein, pressure cooker is electric pressure cooker.
In sum, cut-off switch provided by the invention, structure is simple, easy to assembly, and be the cut-off switch of mechanical structure formula, the controllable adjustment of cut-off switch is realized by the selected difference of sudden change part and the difference of screw screw-in depth, that is: the maximum pressure value realizing can bearing when abnormality pressure switch independently sets, when pressure that pressure switch is born arrives the force value of autonomous setting, cut-off switch carries out jumping disconnected with the power supply of opening pressure switch, when achieving disconnected to jumping, pressure is controllable, effectively improve the practicality of pressure switch.
In describing the invention, term " installation ", " being connected ", " connection " etc. all should be interpreted broadly, and such as, " connection " can be fixedly connected with, and also can be removably connect, or connects integratedly; Can be directly be connected, also indirectly can be connected by intermediary.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the description of this specification, specific features, structure, material or feature that the description of term " embodiment " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a cut-off switch, for pressure switch with the use of, it is characterized in that, comprise pole, contact and sudden change part;
Described pole and described contact are all positioned at the top of described pressure switch and are installed in rotation in described pressure switch, and described pole and described contact away from one end in one is connected with the shell fragment of described pressure switch, another contacts with the contact of described pressure switch, described shell fragment can bear the increase of pressure with described pressure switch and occur bending and deformation, and rotates to drive coupled described pole or described contact;
Described sudden change part is provided with between described pole and the adjoining one end of described contact, and the described pole be connected with described shell fragment or described contact are when turning to desired location, described sudden change part is deformed into the second hold mode by the first hold mode, described pole or described contact and described contact to be disconnected;
Wherein, break jumping that pressure is greater than described pressure switch of the jumping of described cut-off switch is broken pressure.
2. cut-off switch according to claim 1, is characterized in that,
The rotating shaft of described contact is identical with the rotating shaft of described pole.
3. cut-off switch according to claim 2, is characterized in that,
Described contact is positioned at the top of described pole, and described pole is connected with described shell fragment, described contact contacts with described contact.
4. cut-off switch according to claim 3, is characterized in that,
Described contact is contact chip, and described contact chip is provided with shaft hole.
5. cut-off switch according to claim 4, is characterized in that,
One end of described contact chip be provided with contact with described contact projection, the other end end face on be provided with the first draw-in groove, described pole is provided with second draw-in groove relative with the notch of described first draw-in groove, described sudden change part is installed between the first draw-in groove and described second draw-in groove.
6. cut-off switch according to claim 5, is characterized in that,
The both sides of described contact chip are provided with support projection, described pole is provided with mounting groove, the cell wall of described mounting groove both sides is provided with support slot, the described other end of described contact chip is positioned at described mounting groove, described support projection is supported on described support slot, and described rotating shaft is positioned at described mounting groove and described shaft hole.
7. cut-off switch according to any one of claim 1 to 6, is characterized in that,
Described sudden change part is sudden change sheet, and described shell fragment is connected by screw with coupled described pole or described contact.
8. a pressure switch assembly, is characterized in that, comprising:
Pressure switch; With
Cut-off switch according to any one of claim 1 to 7, described cut-off switch is arranged in described pressure switch.
9. pressure switch assembly according to claim 8, is characterized in that,
Described pressure switch is in series with described cut-off switch and is connected.
10. a pressure cooker, is characterized in that, includes pressure switch assembly as claimed in claim 8 or 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410191487.6A CN103985594B (en) | 2014-05-07 | 2014-05-07 | Cut-off switch, pressure switch assembly and pressure cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410191487.6A CN103985594B (en) | 2014-05-07 | 2014-05-07 | Cut-off switch, pressure switch assembly and pressure cooker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103985594A CN103985594A (en) | 2014-08-13 |
| CN103985594B true CN103985594B (en) | 2016-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410191487.6A Expired - Fee Related CN103985594B (en) | 2014-05-07 | 2014-05-07 | Cut-off switch, pressure switch assembly and pressure cooker |
Country Status (1)
| Country | Link |
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| CN (1) | CN103985594B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017202401A1 (en) * | 2017-02-15 | 2018-08-16 | Wmf Group Gmbh | Pressure cooker lid and pressure cooker |
| CN110477744A (en) * | 2019-08-27 | 2019-11-22 | 九阳股份有限公司 | Failure protection method, electric heating class pressure means and the storage medium of pressure switch |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2140599A1 (en) * | 1971-08-13 | 1973-02-22 | Eberle Werke Kg | CAPILLARY TUBE REGULATOR OR LIMITERS |
| CN1244370A (en) * | 1998-08-10 | 2000-02-16 | 宁波唐人锅业有限公司 | Multifunctional electric pressure cooker |
| CN102368456A (en) * | 2011-09-30 | 2012-03-07 | 格力电器（中山）小家电制造有限公司 | Combined pressure switch for electric pressure cooker |
| CN202523635U (en) * | 2012-02-02 | 2012-11-07 | 美的集团有限公司 | Combined pressure switch and electric pressure cooker using same |
| CN202855630U (en) * | 2012-09-24 | 2013-04-03 | 黄后君 | Non-resettable pressure switch |
| CN203016665U (en) * | 2012-12-14 | 2013-06-26 | 美的集团股份有限公司 | Electric pressure cooker |
| CN203122089U (en) * | 2013-03-18 | 2013-08-14 | 美的集团股份有限公司 | Electric pressure cooker |
| CN203839277U (en) * | 2014-05-07 | 2014-09-17 | 佛山市顺德区美的电热电器制造有限公司 | Power-off switch, pressure switch assembly and pressure cooker |
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2014
- 2014-05-07 CN CN201410191487.6A patent/CN103985594B/en not_active Expired - Fee Related
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| CN103985594A (en) | 2014-08-13 |
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Granted publication date: 20160203 Termination date: 20200507 |