CN206197742U - Overvoltage protection switch and the pressure means with it - Google Patents
Overvoltage protection switch and the pressure means with it Download PDFInfo
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- CN206197742U CN206197742U CN201620799044.XU CN201620799044U CN206197742U CN 206197742 U CN206197742 U CN 206197742U CN 201620799044 U CN201620799044 U CN 201620799044U CN 206197742 U CN206197742 U CN 206197742U
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Abstract
The utility model discloses a kind of overvoltage protection switch and pressure means, the overvoltage protection switch includes：First switch terminal, second switch terminal, touch device, Switch main body and sealing device, first switch terminal have the first contact；Second end of second switch terminal is provided with the second contact, and the second contact often contacts with the first contact；When the environmental pressure that sealing device is configured to apply by connected entrance reaches predetermined pressure, sealing device drives touch device to touch second switch terminal makes the second contact be moved to from the contact position often contacted with the first contact to make the second contact be maintained at open position with the open position and second switch terminal of the first contact separation, second switch terminal is formed towards the convex surface that touch device is bloated when the second contact is located at contact position, and is formed as the convex surface bloated away from touch device when the second contact is located at open position.According to overvoltage protection switch of the present utility model, the power-off protection in the case where exception is over-pressed is realized.
Description
Technical field
The utility model is related to household appliance technical field, more particularly, to a kind of overvoltage protection switch and the pressure device with it
Tool.
Background technology
In correlation technique, the normal pressure of electric pressure cooking saucepan uses scope in 70kPa.In the process that electric pressure cooking saucepan is normally used
In, 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 pot)
Mode realizes normal pressure release.However, between pressure release defective valve or pot and lid can not normally crack discharging Voltage force
During gas in pot, easily there is situation about popping in electric pressure cooking saucepan, so as to being 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 overvoltage protection switch, the simple structure of the overvoltage protection switch.
Another purpose of the present utility model is to propose a kind of pressure means with above-mentioned overvoltage protection switch.
According to the overvoltage protection switch of the utility model first aspect, including：First switch terminal, the first switch end
Son has the first contact；Second switch terminal, the first end of the second switch terminal is fixing end, the second switch terminal
The second end be movable end, second end of the second switch terminal is provided with the second contact, second contact and institute
The first contact is stated often to contact；Touch device, the touch device is disposed adjacent with the second switch terminal；Switch main body, institute
The connected entrance for being formed with Switch main body and being communicated with external environment condition is stated, wherein the first switch terminal, the second switch end
Sub and described touch device is each provided in the Switch main body；Sealing device, the sealing device is located in the Switch main body,
The sealing device is connected with the touch device, and the sealing device is configured to the environment applied by the connected entrance
When pressure reaches the predetermined pressure, the sealing device drive the touch device touch the second switch terminal make it is described
Second contact from the contact position often contacted with first contact move to the open position of first contact separation and
The second switch terminal makes second contact be maintained at the open position, and the second switch terminal is touched described second
Point is formed towards the convex surface that the touch device is bloated when being located at the contact position, and is located in second contact described
Be formed as the convex surface bloated away from the touch device during open position.
According to overvoltage protection switch of the present utility model, simple structure, low cost.When overvoltage protection switch is used for pressure device
During tool, by setting touch device, when the pressure in pressure means reaches predetermined pressure, the first contact and the second contact are disconnected
Open, can disconnect the heater circuit with first switch terminal and second switch terminal of pressure means, such that it is able to effective
Realize it is abnormal it is over-pressed under power-off protection, and, when the second contact is located at open position, second switch terminal can be by the
Two contacts are maintained at open position, are not in the situation that heater continues to heat, and increased pressure means uses safety
Property.
Have according to some embodiments of the present utility model, between the first end of the second switch terminal and the second end and pass through
Logical opening, tongue piece is connected with the side wall of the first end of the neighbouring described second switch terminal of the opening, wherein described touch
Dynamic device is suitable to touch the tongue piece.
Alternatively, the width of the tongue piece along the second switch terminal the first end towards second end side
To being gradually reduced.
According to some embodiments of the present utility model, buffer mouth, the buffer mouth are formed with the second switch terminal
The first end of the neighbouring second switch terminal.
According to some embodiments of the present utility model, the touch device includes：Touch fixed seat, the shake-up fixed seat
On be formed with pilot hole, wherein the first switch terminal and the second switch terminal be fixed on it is described shake-up fixed seat on；
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 shake-up institute
Second switch terminal is stated, the second end of the touch pole is connected with the sealing device；And dynamic clamping head and quiet clamping head, the elasticity is again
Position part is located in the pilot hole, and the direction that the dynamic clamping head and quiet clamping head is configured to be directed away from the second switch 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 the connected entrance to block the connected entrance, the sealing when second contact is located at the open position
The direction that device is directed away from the connected entrance bloats.
According to some embodiments of the present utility model, the predetermined pressure is P, and the P meets：140kPa≤P≤
200kPa。
Alternatively, the pressure lifting surface area that the environmental pressure acts on the sealing device is S, wherein the S is full
Foot：1mm2≤S≤100mm2。
According to the pressure means of the utility model second aspect, including according to the overvoltage of the above-mentioned first aspect of the utility model
Protection switch.
Additional aspect of the present utility model and advantage 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.
Reference：
100：Overvoltage protection switch；
1：First switch terminal；11：First contact；
2：Second switch terminal；21：Second contact；22：Opening；23：Tongue piece；24：Buffer mouth；
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.
Specific embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein ad initio
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 Description of Drawings 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 ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward ",
The orientation or position relationship of the instruction such as " axial direction ", " radial direction ", " circumference " are, based on orientation shown in the drawings or position relationship, to be only
Described with simplified for the ease of description the utility model, must had rather than the device or element for indicating or implying meaning specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.
Additionally, 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 explanation, unless otherwise clearly defined and limited, term " is 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 mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary,
Can be two connections of element internal.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 overvoltage protection switch 100 according to the utility model embodiment is described below with reference to Fig. 1-Fig. 3.Overvoltage protection switch
100 pressure means such as electric pressure cooking saucepan (not shown) that can be used for needing carrying out pressure cut-off protection especially rigid pressure
On pot (i.e. in electric pressure cooking saucepan whole work process, pot and lid remain fully sealed position).When pressure means example
As normal pressure relief device such as pressure release defective valve the appearance exception of electric pressure cooking saucepan are over-pressed, (pressure i.e. in pressure means is normal more than its
Pressure uses scope such as 70kPa) when, the heater power-off in pressure means can be made heating by overvoltage protection switch 100
Device stops heating, prevents the pressure in pressure means from further raising.In description below the application, opened with overvoltage protection
Closing 100 is used to be illustrated as a example by electric pressure cooking saucepan.Certainly, it will be understood to those skilled in the art that overvoltage protection switch 100
Can be also used for other pressure means such as electric pressure pot first-class.
As depicted in figs. 1 and 2, according to the overvoltage protection switch 100 of the utility model first aspect embodiment, including first
Switch terminal 1, second switch terminal 2, touch device, Switch main body 5 and sealing device 6.
First switch terminal 1 has the first contact 11.The first end of second switch terminal 2 is (for example, the left side in Fig. 1 and Fig. 2
End) it is fixing end, now the first end of second switch terminal 2 is fixed, and the first end of second switch terminal 2 is relative to mistake
Without relative motion, second end (for example, the right-hand member in Fig. 1 and Fig. 2) of second switch terminal 2 is activity to pressure protection switch 100
End, the second end of second switch terminal 2 can be motion.Second end of second switch terminal 2 is provided with the second contact 21, the
Second end of two switch terminals 2 can drive the second contact 21 to move, so that the second contact 21 contacts with the first contact 11, or with
First contact 11 separates.Second contact 21 often contacts with the first contact 11.
For example, as depicted in figs. 1 and 2, the first contact 11 is located at the free end of first switch terminal 1 (for example, Fig. 1 and Fig. 2
In upper end), the first contact 11 protrudes to be formed from a side surface of first switch terminal 1, similarly, the second contact 21 from second
One side surface at the second end of switch terminal 2 protrudes to be formed.
First switch terminal 1 and second switch terminal 2 are suitable to (for example, by way of wire 7) and are connected to pressure means
For example in the heater circuit (not shown) of electric pressure cooking saucepan, the heater circuit includes heater.When pressure means are for example electric
When pressure cooker is normally used, the first contact 11 remains and contacts that heater circuit is often turned on the second contact 21, heater work
Make, heated with to food in pressure means 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 as face contacts, 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).
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, the downside in Fig. 1 and Fig. 2) away from first switch terminal 1 of switch terminal 2.Touch device is in normal conditions
Do not contacted with second switch terminal 2 under (for example, when the second contact 21 is located at contact position).Touch device is configured to when environment pressure
When power reaches predetermined pressure, touch second switch terminal 2 and make the second contact 21 from the contact position often contacted with the first contact 11
(as shown in Figure 1) moves to the open position (as shown in Figure 2) for the first contact 11 separate.It should be noted that when overvoltage is protected
Shield switch 100 is used for when on pressure means such as electric pressure cooking saucepan, and " environmental pressure " can be understood as pressure means such as Voltage force
Pressure in pot.
For example, when the pressure in pressure means such as electric pressure cooking saucepan reaches predetermined pressure, touch device and second switch
Terminal 2 is contacted and touching second switch terminal 2 makes the second contact 21 be separated (do not contact) with the first contact 11, so that heating
Circuit is disconnected, and heater is not worked, and the pressure in pressure means such as electric pressure cooking saucepan can be reduced gradually, be realized to pressure
The protection of utensil such as electric pressure cooking saucepan, and do not discharge the gas of HTHP due to pressure means such as electric pressure cooking saucepan, from without
User can be damaged.Touch device can not contacted after second switch terminal 2 is touched with second switch terminal 2.
Alternatively, predetermined pressure is P, and P meets：140kPa≤P≤200kPa.Its concrete numerical value can be according to actual pressure
The type of utensil such as electric pressure cooking saucepan and specifically set, preferably to meet actual requirement.
When the second contact 21 is located at open position, second switch terminal 2 is configured to make the second contact 21 be maintained at disconnection
Position.For example, after the first use of overvoltage protection switch 100 (the first contact 11 and the second contact 21 disconnect) cannot Self-resetting, i.e.,
First contact 11 and the second contact 21 will not again contact and turn on heater circuit, so as to increased pressure means such as Voltage force
The security that pot is used.
Second switch terminal 2 is formed towards the convex surface that touch device is bloated when the second contact 21 is located at contact position
(as shown in Figure 1), the now side away from touch device of the second switch terminal 2 that the first contact 11 is located at, second switch end
Above-mentioned second end of son 2 bends towards the direction of the first contact 11, the second contact 21 can be effectively ensured tight with the first contact 11
Contiguity is touched, and second switch terminal 2 is formed as the convex surface that is bloated away from touch device when the second contact 21 is located at open position
(as shown in Figure 2), now second switch terminal 2 direction of touch device be directed away from the presence of touch device bloat, from
And can drive second switch terminal 2 above-mentioned second end be directed away from the first contact 11 direction move, make the second contact 21
Separated with the first contact 11, also, due to second switch terminal 2 stress constraint itself, may remain in second switch terminal 2
This is directed away from the state that touch device is bloated, without resetting.Thus, it is processed into towards one by by second switch terminal 2
The curved of lateral bend, when the side bent to second switch terminal 2 exerts a force, second switch terminal 2 can be in the work of the power
Bloated to opposite side and driven its above-mentioned second end to move up and down with lower, to realize the contact with the first contact 11 and separate.
Alternatively, the longitudinal section shape of second switch terminal 2 is formed as arc, and certainly, second switch terminal 2 is overall also
Can be with a substantially spherical part, but not limited to this.It is understood that the concrete shape of second switch terminal 2 can be with root
Specifically set according to actual requirement, the first contact 11 and the second contact 21 is kept contact as long as being arched upward to side in normal condition,
And being arched upward to opposite side in pressure anomaly separates the first contact 11 and the second contact 21.
The connected entrance 51 communicated with external environment condition is formed with Switch main body 5, for example, as depicted in figs. 1 and 2, connected entrance
51 bottoms that can be formed in Switch main body 5.It is " outside when overvoltage protection switch 100 is used for pressure means such as electric pressure cooking saucepan
Environment " is referred to inside pressure means such as electric pressure cooking saucepan.Wherein first switch terminal 1, second switch terminal 2 and touch device
It is each provided in Switch main body 5.Thus, first switch terminal 1, second switch terminal 2 and touch device can be accommodated by setting
Switch main body 5, improve the integration of overvoltage protection switch 100.
Sealing device 6 is located in Switch main body 5, and sealing device 6 is connected with touch device, and sealing device 6 is configured to pass through
The environmental pressure that connected entrance 51 applies is when reaching predetermined pressure, sealing device 6 drives touch device to touch second switch terminal 2 makes
Second contact 21 moves to the open position that with the first contact 11 separate and the from the contact position with the often contact of the first contact 11
Two switch terminals 2 make the second contact 21 be maintained at open position.Thus, by setting sealing device 6, sealing device 6 can be by
There is pressure difference between the inside of Switch main body 5 and pressure means such as electric pressure cooking saucepan inside, so as to work as pressure means such as Voltage force
During pot internal abnormality overvoltage, sealing device 6 can promote touch pole 42 to move up in the presence of pressure difference and be opened with touching second
Close terminal 2.
Overvoltage protection switch 100 according to the utility model embodiment, simple structure, low cost.Work as overvoltage protection switch
100 be used for pressure means such as electric pressure cooking saucepan when, by setting touch device, the pressure in pressure means such as electric pressure cooking saucepan
When reaching predetermined pressure, the first contact 11 and the second contact 21 disconnect, can make pressure means such as electric pressure cooking saucepan with
The heater circuit of one switch terminal 1 and second switch terminal 2 disconnects, such that it is able to effectively realize that the power-off in the case where exception is over-pressed is protected
Shield, and, when the second contact 21 is located at open position, the second contact 21 can be maintained at disconnection position by second switch terminal 2
Put, be not in the situation of heater continuation heating, increased the safety in utilization of pressure means such as electric pressure cooking saucepan.Separately
Outward, by setting Switch main body 5, can be by first switch terminal 1, second switch terminal 2, touch device, Switch main body 5 and close
Seal apparatus 6 are integrated in Switch main body 5 so that overvoltage protection switch 100 be a global facility, when using, can conveniently and
Overvoltage protection switch 100 is quickly attached to such as electric pressure cooking saucepan of pressure means 200, efficiency of assembling is improve.By setting
Sealing device 6, can be effectively ensured the reliability of the action of overvoltage protection switch 100.
As shown in figure 3, the opening 22 with insertion between the above-mentioned first end of second switch terminal 2 and the second end, opening
22 run through second switch terminal 2, the first of the neighbouring second switch terminal 2 of opening 22 along the thickness direction of second switch terminal 2
Be connected with tongue piece 23 on the side wall (for example, the left side wall in Fig. 3) at end, the other end (for example, the right-hand member in Fig. 3) of tongue piece 23 with
The side wall of opening 22 is spaced apart from each other, and wherein touch device is suitable to touch tongue piece 23, to realize the second contact 21 and the first contact
11 contact with separate.Thus, touch device only needs to touch tongue piece 23, uses less power, it is possible to realize power-off protection, from
And further ensure the safety in utilization of pressure means such as electric pressure cooking saucepan.
Alternatively, the width of tongue piece 23 along second switch terminal 2 first end towards the second end direction (for example, as scheme
Direction in 1- Fig. 3 from left to right) it is gradually reduced.As a result, the reliability of power-off protection has not only been effectively ensured, and subtract
Lack the material of second switch terminal 2, reduce cost.
According to some embodiments of the present utility model, as shown in figure 3, being formed with buffer mouth 24 on second switch terminal 2, delay
Blurt out 24 along the thickness direction of second switch terminal 2 through second switch terminal 2, buffer mouth 24 is adjacent to second switch terminal 2
Above-mentioned first end.Thus, by setting buffer mouth 24 at the fixing end of second switch terminal 2, second switch end can be avoided
Failed due to repeatedly bending at the fixing end of son 2, extend the service life of second switch terminal 2, improve overvoltage protection
The reliability of switch 100.
According to some embodiments of the present utility model, as depicted in figs. 1 and 2, touch device is located at second switch terminal 2
Away from the side (for example, the downside in Fig. 1 and Fig. 2) of first switch terminal 1, specifically, touch device includes：Touch and fix
Seat 41, touch pole 42 and dynamic clamping head and quiet clamping head 43, to touch and be formed with pilot hole 411, wherein first switch terminal 1 in fixed seat 41
It is fixed in shake-up fixed seat 41 with second switch terminal 2.Touch pole 42 is located in pilot hole 411, the first end of touch pole 42
(for example, the upper end in Fig. 1 and Fig. 2) is suitable to stretch out the shake-up second switch of pilot hole 411 terminal 2, and pilot hole 411 is to touch pole 42
With guide effect, to ensure the accuracy that touch pole 42 is moved.Alternatively, the bearing of trend of touch pole 42 and second switch end
Plane where son 2 is vertical, thus, it is possible to preferably touching second switch terminal 2 makes 11 points of the second contact 21 and the first contact
From.The lower end of touch pole 42 is provided with the backstop muscle for stretching out.
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 with the roof and backstop muscle of pilot hole 411 respectively to often to promote touch pole 42 downwards, i.e., when pressure means are for example electric at two ends
When pressure in pressure cooker is less than predetermined pressure, touch pole 42 can reset under the action of the spring.
Wherein, second end (for example, the lower end in Fig. 1 and Fig. 2) of touch pole 42 is connected with sealing device 6.For example, as schemed
Shown in 1 and Fig. 2, holding tank is formed with sealing device 6, above-mentioned second end of touch pole 42 is suitable to be fixed in holding tank.It is close
The environmental pressure (for example, pressure means such as electric pressure cooking saucepan internal pressure) that seal apparatus 6 are configured to apply by connected entrance 51 reaches
Drive the first end of touch pole 42 to stretch out pilot hole 411 to sealing device during predetermined pressure 6 and touch second switch terminal 2.Sealing
Device 6 is used to separate the inside of Switch main body 5 and connected entrance 51, for example, opened with pressure means such as electric pressure cooking saucepan internal insulation,
So as to there is pressure difference between the inside of Switch main body 5 and pressure means such as electric pressure cooking saucepan inside, so that when pressure means are for example electric
During the overvoltage of pressure cooker internal abnormality, sealing device 6 can promote touch pole 42 to move up to touch the in the presence of pressure difference
Two switch terminals 2.
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 bloat to block connected entrance 51, for example, as shown in figure 1, the edge of diaphragm seal and being played for blocking the bottom of connected entrance 51
The effect of two-layer sealing, is effectively guaranteed the reliability of touch device action.It is close when the second contact 21 is located at open position
The direction that seal apparatus 6 are directed away from connected entrance 51 bloats (as shown in Figure 2).Now sealing device 6 can be resilient using tool
Material is made, and can further improve the sealing effectiveness of sealing device 6.
Alternatively, the pressure lifting surface area that environmental pressure acts on sealing device 6 is S, and wherein S meets：1mm2≤S≤
100mm2.For example, when overvoltage protection switch 100 is used for pressure means such as electric pressure cooking saucepan, S is that the pressure in apparatus body is made
With the pressure lifting surface area on sealing device 6.
Overvoltage protection switch 100 according to the utility model embodiment, it is possible to achieve when pressure means such as electric pressure cooking saucepan
When interior pressure is between 140kPa-200kPa, deenergization realizes overvoltage protection.This kind of principle of overvoltage protection switch 100
Be steam in pressure means such as electric pressure cooking saucepan by the access switch body 5 of connected entrance 51, when steam pressure is multiple more than elasticity
During the elastic force of the position such as spring of part 43, sealing device 6 is driven on steam top, drives touch pole 42 to move, and touches second switch terminal 2,
Second switch terminal 2 is set to arc-shaped structure, can be arched upward upwards after stress, and the second contact 21 of second switch terminal 2 is therewith
Move down, separate the first contact 11 of inside of Switch main body 5 and the second contact 21.After second switch terminal 2 is touched, the
Two switch terminals 2 may remain in the state, prevent the return of the second contact 21, can be effectively increased pressure protection, increase pressure device
Have the security of such as electric pressure cooking saucepan, it is more safe and reliable compared with traditional mechanical pressure relief.
According to the pressure means of the utility model second aspect embodiment, including according to the above-mentioned first aspect of the utility model
The overvoltage protection switch 100 of embodiment.
For example, pressure means include apparatus body, overvoltage protection switch 100 is located on apparatus body, wherein above-mentioned environment
Pressure is the pressure in apparatus body, and when the pressure in apparatus body reaches predetermined pressure, touch device touches second switch end
Son 2.Specifically, apparatus body includes pot and lid, and the top of pot is opened wide, and cover cap is located at the top of pot, wherein,
Overvoltage protection switch 100 is located on lid, and positioned at the center of lid.Seal is provided between pot and lid, to ensure pot
Sealing between body and lid.
Pressure means such as electric pressure cooking saucepan according to the utility model embodiment, can effectively provide pressure anomaly power-off and protect
Shield, and reduce cost.
Other compositions of pressure means such as electric pressure cooking saucepan according to the utility model embodiment and operation are for ability
All it is known for the those of ordinary skill of domain, 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.And, the specific features of description, structure, material or
Person's feature can in an appropriate manner be combined in one or more any 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：
In the case where principle of the present utility model and objective is not departed from various changes, modification, replacement can be carried out to these embodiments
And modification, scope of the present utility model limits by claim and its equivalent.
Claims (9)
1. a kind of overvoltage protection switch, it is characterised in that including：
First switch terminal, the first switch terminal has the first contact；
Second switch terminal, 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 is provided with the second contact, second contact and first contact
Often contact；
Touch device, the touch device is disposed adjacent with the second switch terminal；
Switch main body, is formed with the connected entrance communicated with external environment condition on the Switch main body, wherein the first switch terminal,
The second switch terminal and the touch device are each provided in the Switch main body；
Sealing device, the sealing device is located in the Switch main body, and the sealing device is connected with the touch device, institute
State the environmental pressure that sealing device is configured to apply by connected entrance when reaching predetermined pressure, the sealing device band
The dynamic touch device touch the second switch terminal make second contact from contacting that first contact often contacts
Position moves to is maintained at second contact with the open position and the second switch terminal of first contact separation
The open position, the second switch terminal is formed towards described touching when second contact is located at the contact position
The convex surface that dynamic device is bloated, and be formed as being bloated away from the touch device when second contact is located at the open position
Convex surface.
2. overvoltage protection switch according to claim 1, it is characterised in that the first end of the second switch terminal and
The opening with insertion, tongue is connected with the side wall of the first end of the neighbouring described second switch terminal of the opening between two ends
Piece, wherein the touch device is suitable to touch the tongue piece.
3. overvoltage protection switch according to claim 2, it is characterised in that the width of the tongue piece is along the second switch
The first end of terminal is gradually reduced towards the direction at second end.
4. overvoltage protection switch according to claim 1, it is characterised in that be formed with buffering on the second switch terminal
Mouthful, the first end of the buffer mouth adjacent to the second switch terminal.
5. the overvoltage protection switch according to any one of claim 1-4, it is characterised in that the touch device includes：
Fixed seat is touched, pilot hole is formed with the shake-up fixed seat, wherein the first switch terminal and described second is opened
Terminal is closed to be 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 stretch out the pilot hole and touches
The second switch terminal 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.
6. overvoltage protection switch according to claim 1, it is characterised in that the sealing device is diaphragm seal, when described
The sealing device is bloated to block the connected entrance, when described to the connected entrance when second contact is located at the contact position
The sealing device is directed away from the direction of the connected entrance and bloats when second contact is located at the open position.
7. overvoltage protection switch according to claim 1, it is characterised in that the predetermined pressure is P, the P meets：
140kPa≤P≤200kPa。
8. overvoltage protection switch according to claim 1, it is characterised in that the environmental pressure acts on the sealing dress
The pressure lifting surface area put is S, wherein the S meets：1mm2≤S≤100mm2。
9. a kind of pressure means, it is characterised in that including the overvoltage protection switch according to any one of claim 1-8.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620799044.XU CN206197742U (en) | 2016-07-26 | 2016-07-26 | Overvoltage protection switch and the pressure means with it |
| PCT/CN2016/095335 WO2018018670A1 (en) | 2016-07-26 | 2016-08-15 | Excess pressure protection switch and pressure appliance provided with same |
| EP16908360.7A EP3318163B1 (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 |
|---|---|---|---|
| CN201620799044.XU CN206197742U (en) | 2016-07-26 | 2016-07-26 | Overvoltage protection switch and the pressure means with it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206197742U true CN206197742U (en) | 2017-05-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107701429A (en) * | 2017-11-09 | 2018-02-16 | 佛山市顺德区美的饮水机制造有限公司 | Fluid pump and household electrical appliance |
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2016
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107701429A (en) * | 2017-11-09 | 2018-02-16 | 佛山市顺德区美的饮水机制造有限公司 | Fluid pump and household electrical appliance |
| CN107701429B (en) * | 2017-11-09 | 2024-03-08 | 佛山市顺德区美的饮水机制造有限公司 | Fluid pump and household appliance |
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