CN206499337U - Pressure means - Google Patents
Pressure means Download PDFInfo
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- CN206499337U CN206499337U CN201620794757.7U CN201620794757U CN206499337U CN 206499337 U CN206499337 U CN 206499337U CN 201620794757 U CN201620794757 U CN 201620794757U CN 206499337 U CN206499337 U CN 206499337U
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Abstract
The utility model discloses a kind of pressure means, including apparatus body and overvoltage protection switch, overvoltage protection switch includes Switch main body, first switch terminal, second switch terminal, trigger keeper, touch device and sealing device, first switch terminal has the first contact, second switch terminal has the second contact, triggering keeper includes trigger member and elastic keeper, elastic keeper is connected between the free end of trigger member and the second end of second switch terminal, when the pressure in apparatus body reaches predetermined pressure, pressure in apparatus body is applied to sealing device by connected entrance, the direction that sealing device drives touch device horizontal movement shake-up trigger member and makes elastic keeper be directed away from the second contact often pulls the second end of second switch terminal so that the second contact moves to open position from contact position and the second contact is maintained at open position.According to pressure means of the present utility model, the power-off protection under realization exception is over-pressed.
Description
Technical field
The utility model is related to household appliance technical field, more particularly, to a kind of pressure means.
Background technology
In correlation technique, the normal pressure of electric pressure cooking saucepan uses scope at 70kPa (kPa).Normally used in electric pressure cooking saucepan
During, generally use relief valve or make crack between the pot of electric pressure cooking saucepan and lid (now electric pressure cooking saucepan is elastic pressure
Power pot) mode realize normal pressure release.However, between pressure release defective valve or pot and lid can not normally crack to discharge
During gas in electric pressure cooking saucepan, easily there is situation about popping in electric pressure cooking saucepan, so as to be damaged to user.
Utility model content
The utility model is intended at least solve one of technical problem present in prior art.Therefore, of the present utility model
One purpose is to propose a kind of pressure means, adds the safety in utilization of pressure means.
According to pressure means of the present utility model, including：Apparatus body；And overvoltage protection switch, the overvoltage protection opens
Pass includes Switch main body, first switch terminal, second switch terminal, triggering keeper, touch device and sealing device, described to open
Close the connected entrance being formed with body with being connected inside the apparatus body, the first switch terminal, the second switch end
Sub, described triggering keeper, the touch device and the sealing device are each provided in the Switch main body, the first switch
Terminal has the first contact, and the first end of the second switch terminal is fixing end, and the second end of the second switch terminal is
Movable end, second end of the second switch terminal has the second contact, and second contact and first contact are normal
Contact, the opening between the first end of the second switch terminal and the second end with insertion, the triggering keeper is located at institute
State on second switch terminal, the triggering keeper includes trigger member and elastic keeper, the trigger member and the opening
The side wall of the first end of the neighbouring second switch terminal is connected, and the elastic keeper is connected to the free end of the trigger member
Between the second end of the second switch terminal, the touch device is disposed adjacent with the second switch terminal, described close
Seal apparatus is connected with the touch device, when the pressure in the apparatus body reaches predetermined pressure, in the apparatus body
Pressure the sealing device, the sealing device are applied to by the connected entrance drive the touch device horizontal movement to touch
The direction that moving the trigger member makes the elastic keeper be directed away from second contact often pulls the second switch terminal
The second end so that second contact is moved to and first contact from the contact position often contacted with first contact
The open position of separation simultaneously makes second contact be maintained at the open position.
According to pressure means of the present utility model, by setting touch device and triggering keeper, when in pressure means
When pressure reaches predetermined pressure, the first contact and the second contact disconnect, can make pressure means have first switch terminal and
The heater circuit of second switch terminal disconnects, so as to effectively realize the power-off protection in the case where exception is over-pressed, moreover, when second
Second contact can be maintained at open position by contact when being located at open position, be not in the feelings that heater continues to heat
Condition, adds the safety in utilization of pressure means.In addition, by setting Switch main body, first switch terminal, second can be opened
Close terminal, triggering keeper, touch device and sealing device to be integrated in Switch main body so that overvoltage protection switch is one whole
Body component, in use, can facilitate and overvoltage protection switch quickly is attached into pressure means, improves efficiency of assembling.It is logical
Setting sealing device is crossed, the reliability of overvoltage protection switch action can be effectively ensured.Overvoltage protection switch it is simple in construction, into
This is low.
According to some embodiments of the present utility model, pipe, institute are communicated between the connected entrance and the apparatus body
The pressure stated in apparatus body is flatly applied on the touch device by the communicating pipe.
Specifically, the touch device includes：Fixed seat is touched, the shake-up fixed seat is fixed on the Switch main body
It is interior, pilot hole is formed with the shake-up fixed seat, wherein the first switch terminal and the second switch terminal are fixed on
In the shake-up fixed seat；Touch pole, the touch pole is located in the pilot hole, and the first end of the touch pole is suitable to stretch out
The pilot hole touches the triggering keeper, and the second end of the touch pole is connected with the sealing device；And elasticity is multiple
Position part, the dynamic clamping head and quiet clamping head is located in the pilot hole, and the dynamic clamping head and quiet clamping head is configured to be directed away from the second switch
The direction of terminal often promotes the touch pole.
Alternatively, the sealing device is diaphragm seal, the sealing when second contact is located at the contact position
Device is bloated to block the connected entrance to the connected entrance, the sealing when second contact is located at the open position
Device is directed away from the direction bulging of the connected entrance.
Alternatively, the communicating pipe is inverted L-shaped pipe.
Alternatively, the trigger member be shell fragment, when second contact be located at the contact position when trigger member and
The elastic keeper is located at the side of the neighbouring touch device of the second switch terminal, when second contact is located at
The trigger member and the elastic keeper are located at the remote shake-up dress of the second switch terminal during open position
The side put.
Alternatively, the elastic keeper is compression spring.
According to some embodiments of the present utility model, the predetermined pressure is P, and the P is met：140kPa≤P≤
200kPa。
According to some embodiments of the present utility model, the apparatus body includes：Pot, the top of the pot is opened wide；
And lid, the lid is located at the top of the pot, wherein the overvoltage protection switch is located on the lid.
Alternatively, the overvoltage protection switch is located at the center of the lid.
According to some embodiments of the present utility model, the pressure means are electric pressure cooking saucepan or electric pressure pot.
Alternatively, the pressure lifting surface area that the environmental pressure is acted on the sealing device is S, wherein the S is full
Foot：1mm2≤S≤100mm2。
Additional aspect and advantage of the present utility model will be set forth in part in the description, partly by from following description
In become obvious, or by it is of the present utility model practice recognize.
Brief description of the drawings
Of the present utility model above-mentioned and/or additional aspect and advantage will from description of the accompanying drawings below to embodiment is combined
Become substantially and be readily appreciated that, wherein：
Fig. 1 is the profile of the overvoltage protection switch according to the utility model embodiment, wherein the second contact is in contact
Position；
Fig. 2 is another profile of the overvoltage protection switch according to the utility model embodiment, wherein at the second contact
In open position；
Fig. 3 is the stereogram of the overvoltage protection switch according to the utility model embodiment, wherein the second contact is in contact
Position；
Fig. 4 is the schematic diagram of first switch terminal shown in Fig. 3 and second switch terminal；
Fig. 5 is the profile of the pressure means according to the utility model embodiment.
Reference：
100：Overvoltage protection switch；
1：First switch terminal；11：First contact；
2：Second switch terminal；21：Second contact；22：Opening；
3：Trigger keeper；31：Trigger member；32：Elastic keeper；
41：Touch fixed seat；411：Pilot hole；42：Touch pole；43：Dynamic clamping head and quiet clamping head；
5：Switch main body；51：Connected entrance；6：Sealing device；7：Wire；
200：Pressure means；
201：Pot；202：Lid；203：Seal；204：Communicating pipe.
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element or element with same or like function are represented to same or similar label eventually.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, is only used for explaining the utility model, and it is not intended that to of the present utility model
Limitation.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ",
The orientation or position relationship of the instruction such as " axial direction ", " radial direction ", " circumference " are
Described for the ease of description the utility model and simplifying, rather than to indicate or imply that signified device or element must have specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In description of the present utility model, unless otherwise indicated, the implication of " multiple "
It is two or more.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
The pressure means 200 according to the utility model embodiment are described below with reference to Fig. 1-Fig. 5.Pressure means 200 can be with
For electric pressure cooking saucepan.It is that electric pressure cooking saucepan especially rigid pressure pot (exists with pressure means 200 in the description below the application
In electric pressure cooking saucepan whole work process, pot and lid remain fully sealed position) exemplified by illustrate.Certainly, ability
The technical staff in domain is appreciated that pressure means 200 can also be other pressure means 200 for needing pressure cut-off to protect, example
Such as electric pressure pot.
As shown in figure 5, according to such as electric pressure cooking saucepan of pressure means 200 of the utility model embodiment, including apparatus body
With overvoltage protection switch 100.When exception occurs in the normal pressure relief device such as pressure release defective valve of such as electric pressure cooking saucepan of pressure means 200
During overvoltage (pressure i.e. in pressure means 200 is more than its normal pressure and uses scope such as 70kPa), overvoltage protection switch 100
Heater in pressure means 200 can be powered off, heat heater stop, prevent the pressure in pressure means 200
Further rise.
Specifically, as Figure 1-Figure 4, overvoltage protection switch 100 includes Switch main body 5, first switch terminal 1, the
Two switch terminals 2, triggering keeper 3, touch device and sealing device 6.Overvoltage protection switch 100 has Switch main body 5, switch
The connected entrance 51 with being connected inside apparatus body is formed with body 5, for example, as depicted in figs. 1 and 2, connected entrance 51 can be with shape
Into the bottom in Switch main body 5.Wherein first switch terminal 1, second switch terminal 2, triggering keeper 3, touch device and close
Seal apparatus 6 is each provided in Switch main body 5.Thus, first switch terminal 1, second switch terminal 2 can be accommodated by setting, touched
The Switch main body 5 of keeper 3, touch device and sealing device 6 is sent out, the integration of overvoltage protection switch 100 is improved.
First switch terminal 1 has the first contact 11, and second switch terminal 2 has the second contact 21, the second contact 21 with
The first often contact of contact 11.For example, as depicted in figs. 1 and 2, the first contact 11 is located at the free end (example of first switch terminal 1
Such as, the upper end in Fig. 1 and Fig. 2), the first contact 11 protrudes to be formed from a side surface of first switch terminal 1, similarly, and second
Contact 21 is located at the free end (for example, right-hand member in Fig. 1 and Fig. 2) of second switch terminal 2, and the second contact 21 is from second switch end
Protrude to be formed in one side surface of son 2.
First switch terminal 1 and second switch terminal 2 are connected to pressure means suitable for (for example, by way of wire 7)
In the heater circuit (not shown) of 200 such as electric pressure cooking saucepans, the heater circuit includes heater.When pressure means 200
Such as electric pressure cooking saucepan is normal in use, the first contact 11 is remained with the second contact 21 contacts, and heater circuit is often turned on, and is heated
Device works, to be heated to food in pressure means 200 etc..
Alternatively, the outer surface of the first contact 11 and the second contact 21 can be collectively formed by cambered surface and plane respectively, should
Plane is located at the top of the first contact 11 and the second contact 21, thus, due to connecing between the first contact 11 and the second contact 21
Touch and contacted for face, contact area is big so that the first contact 11 is contacted well, so as to ensure that heater circuit with the second contact 21
Reliability.Certainly, the sphere that the outer surface of the first contact 11 and the second contact 21 can also be formed as outwardly is (not shown
Go out).
The first end (for example, left end in Fig. 1 and Fig. 2) of second switch terminal 2 is fixing end, now second switch terminal
2 first end is fixed, and the first end of second switch terminal 2 does not have relative motion relative to overvoltage protection switch 100, the
The second end (for example, right-hand member in Fig. 1 and Fig. 2) of two switch terminals 2 is movable end, and the second end of second switch terminal 2 is can
With motion.Wherein the second contact 21 is located at above-mentioned second end of second switch terminal 2, thus, the second of second switch terminal 2
End can drive the second contact 21 to move, so that the second contact 21 is contacted with the first contact 11, or be separated with the first contact 11.
There is the opening 22 of insertion between the first end of second switch terminal 2 and the second end.For example, such as Fig. 3 and Fig. 4 institutes
Show, thickness direction of the opening 22 along second switch terminal 2 runs through second switch terminal 2.It is understood that opening 22 is specific
Size and dimension etc. can specifically be set according to actual requirement, preferably to meet actual requirement.
As Figure 1-Figure 4, triggering keeper 3 includes trigger member 31 and elastic keeper 32, trigger member 31 and opening 22
Neighbouring second switch terminal 2 first end side wall (for example, left side wall in Fig. 1-Fig. 4) be connected, the side wall is preferably formed as
For linear, to ensure reliability that trigger member 31 is connected with the side wall.Remaining of the remainder of trigger member 31 and opening 22
Side wall is spaced apart from each other, and now trigger member 31 is equivalent to cantilever beam, and the free end of trigger member 31 is (for example, the right side in Fig. 1-Fig. 4
End) it is swingable relative to the other end (for example, left end in Fig. 1-Fig. 4) relative with free end of trigger member 31.
Further, reference picture 1- Fig. 4, trigger member 31 can be shell fragment, be touched when the second contact 21 is located at contact position
Outbox 31 and elastic keeper 32 are located at the side of the neighbouring touch device of second switch terminal 2 (for example, under in Fig. 1 and Fig. 2
Side), when the second contact 21 is located at open position, trigger member 31 and elastic keeper 32 are located at the remote of second switch terminal 2 and touched
The side (for example, upside in Fig. 1 and Fig. 2) of dynamic device.Alternatively, shell fragment is formed as planar structure, thus, processing it is simple and
Cost is low, but not limited to this.
Elastic keeper 32 is connected to the above-mentioned free end of trigger member 31 and the second end of second switch terminal 2 (for example, opening
The side wall at the second end of the neighbouring second switch terminal 2 of mouth 22) between, the elastic keeper when touch device touches trigger member 31
32 directions for being directed away from the second contact 21 often pull the second end of second switch terminal 2 so that the second contact 21 is maintained at disconnection
Position, as shown in Figure 2.Alternatively, elastic keeper 32 is compression spring, for example, as Figure 1-Figure 4, elastic keeper 32
Larger Reducing screw spring can be accumulated for two ends cross-sectional area by smaller, intermediate cross-section.But not limited to this.
Thus, as shown in figure 1, when the second contact 21 is located at contact position, trigger member 31 and compression spring are respectively positioned on the
The downside of two switch terminals 2, because compression spring is in normal compressive state, the outside at above-mentioned second end of second switch terminal 2
Edge will be often upward under the pulling force effect of compression spring, so that the first contact 11 and the good contact of the second contact 21；When second
When contact 21 is located at open position, the position of trigger member 31 and compression spring shown in Fig. 1 moves up to second switch end
The upside of son 2, because compression spring is in normal compressive state, the outward flange at above-mentioned second end of second switch terminal 2 will be in pressure
Under the pulling force effect of contracting spring often downwards, so that the second contact 21 is often separated with the first contact 11, the second contact 21 and first
Contact 11 will not be contacted again.
Touch device is disposed adjacent with second switch terminal 2.For example, as depicted in figs. 1 and 2, touch device is located at second
The side (for example, downside in Fig. 1 and Fig. 2) of the remote first switch terminal 1 of switch terminal 2.Sealing device 6 and touch device
It is connected.Pressure when the pressure in apparatus body reaches predetermined pressure, in apparatus body is applied to sealing by connected entrance 51
Device 6, sealing device 6, which drive touch device horizontal movement to touch trigger member 31, makes elastic keeper 32 be directed away from the second contact
21 direction often pulls the second end of second switch terminal 2 so that the second contact 21 is from the contact position often contacted with the first contact 11
Put (as shown in Figure 1) and move to the open position (as shown in Figure 2) separated with the first contact 11.Now pressure means 200 are for example
Stress level in electric pressure cooking saucepan, which acts on to touch with level on touch device, triggers keeper 3, and then drives second switch end
Son 2 is acted, and the direction of action of overvoltage protection switch 100 is horizontal direction.For example, 90 ° of 100 integral-rotation of overvoltage protection switch is set
Put, overvoltage protection switch 100 be able to can also be turned clockwise 90 ° with 90 ° of rotate counterclockwise (as shown in Figure 5).Wherein, pass through
Sealing device 6 is set, and sealing device 6 can be by the inside of Switch main body 5 and such as electric pressure cooking saucepan internal insulation of pressure means 200
Open, make that there is pressure difference between the inside of Switch main body 5 and such as electric pressure cooking saucepan inside of pressure means 200, so that when pressure means 200
For example when electric pressure cooking saucepan internal abnormality is over-pressed, sealing device 6 can promote touch device to touch triggering in the presence of pressure difference
Part 31.
Touch device does not connect under normal conditions (for example, when the second contact 21 is located at contact position) with triggering keeper 3
Touch.When the pressure in such as electric pressure cooking saucepan of pressure means 200 reaches predetermined pressure, touch device is contacted with triggering keeper 3
And touching triggering keeper 3 makes the second contact 21 separate and (not contact) with the first contact 11, so that heater circuit disconnects, plus
Thermal is not worked, and the pressure in such as electric pressure cooking saucepan of pressure means 200 can be reduced gradually, be realized to pressure means 200
The protection of such as electric pressure cooking saucepan, and because such as electric pressure cooking saucepan of pressure means 200 does not discharge the gas of HTHP, so that will not
User is damaged.Touch device can not contacted after triggering keeper 3 is touched with triggering keeper 3.
Alternatively, predetermined pressure is P, and P is met：140kPa≤P≤200kPa.Its concrete numerical value can be according to actual pressure
The type of such as electric pressure cooking saucepan of utensil 200 and specifically set, preferably to meet actual requirement.
Triggering keeper 3 is located on second switch terminal 2, and keeper 3 is triggered when the second contact 21 is located at open position
The second contact 21 is set to be maintained at open position.For example, the first use of overvoltage protection switch 100 (the first contact 11 and the second contact
21 disconnect) after can not Self-resetting, i.e. the first contact 11 and the second contact 21 will not again contact and turn on heater circuit, so as to increase
The security for having added such as electric pressure cooking saucepan of pressure means 200 to use.
According to the pressure means 200 of the utility model embodiment, by setting touch device and triggering keeper 3, work as pressure
When pressure in such as electric pressure cooking saucepan of power utensil 200 reaches predetermined pressure, the first contact 11 and the second contact 21 disconnect, and can make
The heater circuit with first switch terminal 1 and second switch terminal 2 of such as electric pressure cooking saucepan of pressure means 200 disconnects, so that
The power-off protection in the case where exception is over-pressed can be effectively realized, moreover, can be by second when the second contact 21 is located at open position
Contact 21 is maintained at open position, is not in the situation that heater continues to heat, adds such as voltage of pressure means 200
The safety in utilization of power pot.In addition, overvoltage protection switch 100 is simple in construction, cost is low.In addition, by setting Switch main body
5, first switch terminal 1, second switch terminal 2, triggering keeper 3, touch device and sealing device 6 can be integrated in switch
In body 5 so that overvoltage protection switch 100 is a global facility, in use, can facilitate and quickly open overvoltage protection
Close 100 and be attached to such as electric pressure cooking saucepan of pressure means 200, improve efficiency of assembling., can be effective by setting sealing device 6
Ensure the reliability that overvoltage protection switch 100 is acted.
Pipe 204 is communicated between connected entrance 51 and apparatus body, for example, as shown in figure 5, communicating pipe 204 is inverted L-shaped
Pipe, thus, processing is simple and cost is low, but not limited to this.Pressure in apparatus body is flatly applied to by communicating pipe 204
On touch device, when the pressure in apparatus body is more than predetermined pressure, the pressure in apparatus body can be acted on flatly
On touch device, so that touch device touches second switch terminal 2.It is understood that the concrete shape of communicating pipe 204 can
To set according to the actual requirements and specifically, as long as meeting allows the pressure in apparatus body flatly to act on touch device
.
As depicted in figs. 1 and 2, touch device is located at the side (example of the remote first switch terminal 1 of second switch terminal 2
Such as, the downside in Fig. 1 and Fig. 2), specifically, touch device includes：Touch fixed seat 41, touch pole 42 and elastic reset
Part 43, touches fixed seat 41 and is fixed in Switch main body 5, and it is fixed relative to Switch main body 5 now to touch fixed seat 41
, touch and pilot hole 411 is formed with fixed seat 41, wherein first switch terminal 1 and second switch terminal 2 are fixed on shake-up admittedly
In reservation 41.Touch pole 42 is located in pilot hole 411, and the first end (for example, upper end in Fig. 1 and Fig. 2) of touch pole 42 is suitable to
Stretch out pilot hole 411 and touch triggering keeper 3, pilot hole 411 has guide effect to touch pole 42, to ensure that touch pole 42 is transported
Dynamic accuracy.Alternatively, the bearing of trend of touch pole 42 is vertical with the plane where second switch terminal 2, thus, it is possible to more
Touching triggering keeper 3 well makes the second contact 21 be separated with the first contact 11.The lower end of touch pole 42 is provided with what is stretched out
Backstop muscle.
Dynamic clamping head and quiet clamping head 43 is located in pilot hole 411, and dynamic clamping head and quiet clamping head 43 is configured to be directed away from second switch terminal 2
Direction often promotes touch pole 42.For example, dynamic clamping head and quiet clamping head 43 can be spring, spring is set in outside touch pole 42, and spring
Stop respectively with the roof and backstop muscle of pilot hole 411 to often promoting touch pole 42 with level, i.e., when pressure means 200 at two ends
When being less than predetermined pressure such as the pressure in electric pressure cooking saucepan, touch pole 42 can reset under the action of the spring.
Further, sealing device 6 is located in Switch main body 5, and the second end of touch pole 42 is (for example, in Fig. 1 and Fig. 2
Lower end) be provided with sealing device 6, for example, as depicted in figs. 1 and 2, be formed with holding tank on sealing device 6, touch pole 42 it is above-mentioned
Second end is suitable to be fixed in holding tank.When the pressure in apparatus body is applied on sealing device 6 and reached by connected entrance 51
Drive the above-mentioned first end of touch pole 42 to stretch out pilot hole 411 to sealing device during predetermined pressure 6 and touch triggering keeper 3.It is close
Seal apparatus 6 is used to separate the inside of Switch main body 5 and connected entrance 51, for example, with inside such as electric pressure cooking saucepan of pressure means 200 every
Leave, so as to there is pressure difference between the inside of Switch main body 5 and such as electric pressure cooking saucepan inside of pressure means 200, so as to work as pressure device
When such as electric pressure cooking saucepan internal abnormality of tool 200 is over-pressed, sealing device 6 can promote the level of touch pole 42 to move in the presence of pressure difference
It is dynamic to trigger keeper 3 to touch.
Alternatively, sealing device 6 is diaphragm seal, and when the second contact 21 is located at contact position, sealing device 6 is to connected entrance
51 bulgings are to block connected entrance 51, for example, as shown in figure 1, the edge of diaphragm seal and being played for the bottom for blocking connected entrance 51
Two layers of sealedly effect, is effectively guaranteed the reliability of touch device action.It is close when the second contact 21 is located at open position
Seal apparatus 6 is directed away from the direction bulging (as shown in Figure 2) of connected entrance 51.Now sealing device 6 can use flexible
Material is made, and can further improve the sealing effectiveness of sealing device 6.
According to some specific embodiments of the present utility model, as shown in figure 5, apparatus body such as electric pressure cooking saucepan includes：Pot
Body 201 and lid 202, the top of pot 201 are opened wide, and lid 202 is located at the top of pot 201, wherein overvoltage protection switch 100
It is located on lid 202.Alternatively, overvoltage protection switch 100 is located at the center of lid 202.Set between pot 201 and lid 202
There is seal 203, to ensure the sealing between pot 201 and lid 202.
When the pressure in apparatus body just reaches predetermined pressure, have：
F1=F2=P × S
Wherein, F1 is the pressure suffered by the bottom of sealing device 6；F2 is the elastic force of dynamic clamping head and quiet clamping head 43；P is apparatus body
Interior pressure, P span is 120kPa-200kPa (including endpoint value)；S is that environmental pressure is acted on sealing device 6
Pressure lifting surface area (for example, as shown in figure 5, S is pressure in apparatus body act on the pressure of the side of sealing device 6 by
Power area), it is the size of steam and forced contact point.Wherein S is met：1mm2≤S≤100mm2。
Thus, the conversion of above value is passed through, it can be deduced that the stress of the dynamic clamping head and quiet clamping head 43 of control power-off pressure.
Specifically, in the case where second switch terminal 2 is acted, the bottom stress F1=P of sealing device 6 × S, meanwhile,
F1=F2.So as to pass through the conversion of above-mentioned formula, it can be deduced that the stress of the dynamic clamping head and quiet clamping head 43 of control power-off pressure.
According to such as electric pressure cooking saucepan of pressure means 200 of the utility model embodiment, it is possible to achieve when pressure means 200
During such as the pressure in electric pressure cooking saucepan between 140kPa-200kPa, deenergization realizes overvoltage protection.This kind of overvoltage protection is opened
The principle for closing 100 be steam in such as electric pressure cooking saucepan of pressure means 200 by the access switch body 5 of connected entrance 51, work as steam
When pressure is more than the elastic force of such as spring of dynamic clamping head and quiet clamping head 43, sealing device 6 is driven on steam top, drives touch pole 42 to move, and touches
It can be flicked after triggering keeper 3, the stress of second switch terminal 2, the second contact 21 of second switch terminal 2 is with second switch end
Son 2 is moved to horizontal side, separates the first contact 11 of inside of Switch main body 5 and the second contact 21.Set on second switch terminal 2
Triggering keeper 3 is put, after second switch terminal 2 is touched, such as compression spring of elastic keeper 32 holds second switch end
Son 2, prevents the return of the second contact 21, can be effectively increased pressure protection there is provided pressure anomaly power-off protection, increase pressure means
The security of 200 such as electric pressure cooking saucepans, overvoltage protection switch 100 is more safe and reliable compared with traditional mechanical pressure relief,
And reduce cost.
According to other compositions of such as electric pressure cooking saucepan of pressure means 200 of the utility model embodiment and operation for this
All it is known for the those of ordinary skill of field, is not detailed herein.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means to combine specific features, the knot that the embodiment or example are described
Structure, material or feature are contained at least one embodiment of the present utility model or example.In this manual, to above-mentioned art
The schematic representation of language is not necessarily referring to identical embodiment or example.Moreover, description specific features, structure, material or
Person's feature can in an appropriate manner be combined in any one or more embodiments or example.
While there has been shown and described that embodiment of the present utility model, it will be understood by those skilled in the art that：
These embodiments can be carried out with a variety of changes, modification in the case where not departing from principle of the present utility model and objective, replaced
And modification, scope of the present utility model limits by claim and its equivalent.
Claims (11)
1. a kind of pressure means, it is characterised in that including：
Apparatus body；With
Overvoltage protection switch, the overvoltage protection switch includes Switch main body, first switch terminal, second switch terminal, triggering
The connected entrance with being connected inside the apparatus body is formed with keeper, touch device and sealing device, the Switch main body,
It is communicated with pipe between the connected entrance and the apparatus body, the communicating pipe is inverted L-shaped pipe, the first switch terminal,
The second switch terminal, the triggering keeper, the touch device and the sealing device are each provided at the Switch main body
Interior, the first switch terminal has the first contact, and the first end of the second switch terminal is fixing end, the second switch
Second end of terminal is movable end, and second end of the second switch terminal has the second contact, second contact with
First contact is often contacted, the opening between the first end of the second switch terminal and the second end with insertion, described to touch
Hair keeper is located on the second switch terminal, and the triggering keeper includes trigger member and elastic keeper, the triggering
Part is connected with the side wall of the first end of the neighbouring second switch terminal of the opening, and the elastic keeper is connected to described
Between the free end of trigger member and the second end of the second switch terminal, the touch device and the second switch terminal phase
Neighbour is set, and the sealing device is connected with the touch device,
Pressure when the pressure in the apparatus body reaches predetermined pressure, in the apparatus body is applied by the connected entrance
Being added to the sealing device, the sealing device drives the touch device horizontal movement shake-up trigger member to make the elasticity
The direction that keeper is directed away from second contact often pulls the second end of the second switch terminal so that described second touches
Point moves to the open position with first contact separation from the contact position often contacted with first contact and made described
Second contact is maintained at the open position.
2. pressure means according to claim 1, it is characterised in that the pressure in the apparatus body passes through the connection
Pipe is flatly applied on the touch device.
3. pressure means according to claim 2, it is characterised in that the touch device includes：
Fixed seat is touched, the shake-up fixed seat is fixed in the Switch main body, guiding is formed with the shake-up fixed seat
Hole, wherein the first switch terminal and the second switch terminal are fixed in the shake-up fixed seat；
Touch pole, the touch pole is located in the pilot hole, and the first end of the touch pole is suitable to the stretching pilot hole and touched
The triggering keeper is moved, the second end of the touch pole is connected with the sealing device；And
Dynamic clamping head and quiet clamping head, the dynamic clamping head and quiet clamping head is located in the pilot hole, and the dynamic clamping head and quiet clamping head is configured to be directed away from institute
The direction for stating second switch terminal often promotes the touch pole.
4. pressure means according to claim 1, it is characterised in that the sealing device is diaphragm seal, when described second
The sealing device is bloated to block the connected entrance to the connected entrance when contact is located at the contact position, when described second
The sealing device is directed away from the direction bulging of the connected entrance when contact is located at the open position.
5. pressure means according to claim 1, it is characterised in that the trigger member is shell fragment, when second contact
The trigger member and the elastic keeper are located at the neighbouring described tactile of the second switch terminal during positioned at the contact position
The side of dynamic device, when second contact is located at the open position, the trigger member and the elastic keeper are located at institute
State the side of the remote touch device of second switch terminal.
6. pressure means according to claim 1, it is characterised in that the elastic keeper is compression spring.
7. pressure means according to claim 1, it is characterised in that the predetermined pressure is P, the P is met：140kPa
≤P≤200kPa。
8. pressure means according to claim 1, it is characterised in that the apparatus body includes：
Pot, the top of the pot is opened wide；With
Lid, the lid is located at the top of the pot, wherein the overvoltage protection switch is located on the lid.
9. pressure means according to claim 8, it is characterised in that the overvoltage protection switch is located in the lid
Centre.
10. pressure means according to claim 1, it is characterised in that the pressure means are electric pressure cooking saucepan or Voltage force
Pot.
11. pressure means according to claim 1, it is characterised in that environmental pressure is acted on the sealing device
Pressure lifting surface area is S, wherein the S is met：1mm2≤S≤100mm2。
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620794757.7U CN206499337U (en) | 2016-07-26 | 2016-07-26 | Pressure means |
| EP16908360.7A EP3318163B1 (en) | 2016-07-26 | 2016-08-15 | Excess pressure protection switch and pressure appliance provided with same |
| PCT/CN2016/095335 WO2018018670A1 (en) | 2016-07-26 | 2016-08-15 | Excess pressure protection switch and pressure appliance provided with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620794757.7U CN206499337U (en) | 2016-07-26 | 2016-07-26 | Pressure means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206499337U true CN206499337U (en) | 2017-09-19 |
Family
ID=59842297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620794757.7U Active CN206499337U (en) | 2016-07-26 | 2016-07-26 | Pressure means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206499337U (en) |
-
2016
- 2016-07-26 CN CN201620794757.7U patent/CN206499337U/en active Active
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