Specific implementation mode
As long as using below or function, thus means that such a or function, allow to show one or two（PhaseIt is mutually independent）The state transformation of the element of report is sent, but will not be for example in the case where only sending out report there are one elementInterfere the working method of second element.That is, the display will not functionally provide any exclusive or.
Below the utility model is illustrated with reference to attached drawing deeper into ground.Here, it is noted that illustrated different aspect canSeparately or in combination with one another it is applied.That is, each aspect is real in combination with the difference of the utility modelMode is applied to use, as long as no clearly stating as pure alternative.
In addition, below for simplicity, usually only by an entity.But as long as not being attached with clearly, the utility modelAlso more related entities can be respectively provided with.For this respect, using words and phrases, "one" is only understood to refer in one kindAt least one entity is used in simple embodiment.
According to the embodiment illustrated, a kind of display device with malfunction coefficient function includes at least twoA switch, such as first switch 1a and second switch 1b.
In addition, the display device has at least one marking device 3.
Two switches 1a, 1b are at the first（It is not triggered）Separated bearing setting under state.
The bearing setting is, for example, to pass through a kind of heat softenable material, such as solder or adhesive, or pass through oneMechanical retainer or the like is planted to provide.
At this first（It is not triggered）Under state, the marking device 3 indicates " normal "（ok）The first state.
Described two switch 1a, 1b connections pass through 4 deflectable positioning device 5 of active force element.
Described two switch 1a, 1b are contacted respectively with the deflectable positioning device 5 constitute in the first stateEach switchs the anchor point spatially separated, wherein the deflectable positioning device 5 passes through the active force element 4Active force rests on the switch on the anchor point spatially separated in the first state.In described two switches extremelyIt is separated from the anchor point positioned by the positioning device 5 as soon as a few switch 1a is triggered, the positioning device 5 is in the effectDeflection becomes second of state under the active force that power element 4 applies.Second of shape of " failure " that the marking device 3 indicatesState.
The mark of the marking device 3 can be realized for example by visual form, and color change can be provided in the formAnd/or transparency changes or such etc..The mark has been may be, for example, a kind of drawing pin is also used（Stift）,The first state is indicated when highlighting and second of state or on the contrary is indicated when not highlighting.
Triggering one switch, after for example described switch 1a, it is described another switch, for example described switch 1b canIt is yet possibly realized by triggering.If the geometry of the fixed point of the positioning device after triggering one of switch byInterference.The active force element 4 begins to come into force, and the positioning device 5 is moved.The movement may include slidingAnd/or deflection.In the embodiment of Fig. 1 to 3, the movement be substantially it is a kind of around it is described still there are still anchor pointSliding/deflection of side.In the embodiment of Fig. 4 to 6, the movement be substantially one kind on the marking device 3 aroundThe rotation of axis.Referring for example to Fig. 6, the switch 1a is triggered in the figure, but the switch 1b（Still）It is not triggered.It is described notThus the next triggering of switch being triggered as beforely feasible.
It certainly will be it is also possible that two switches（Almost）It triggers simultaneously.In all cases, that is to say, that eitherOnly there are one switches, or whole switches to be triggered, and the marking device 3 indicates second of state.
It should be noted that the state that the display device is particularly advantageous for same type changes.But the utility model not byIt is limited to this.It is more that it also allows to indicate a kind of totality-alarm of different faults.
In one embodiment, described switch 1a, 1b have pre-tensioned spring.These pre-tensioned springs can be such asPass through stop device（As described above）It is fixed, and in switch conditions（Fault condition）Under be released.
In another embodiment, described switch 1a, 1b and one or more electric devices are by way of thermal couplingConnection.Meanwhile electric device can be the various elements for needing to be monitored.Thus, for example can realize that thermal coupling monitors, butAlso pressure monitoring can be realized.Electric device can especially over-pressure safety device, just as such as varistor, gas discharge device,Spark gap etc..
Another embodiment according to the present invention, the active force element 4 is spring element.The spring element 4 canSuch as it is provided by helical spring or leaf spring.Alternative or additional project are that the spring element 4 can also pass through oneElastomer is planted to provide.
According to another embodiment, in addition display device provides a kind of telecommunication contact 6, the telecommunication contactGenerating state changes under the influence of the marking device 3.That is, which the telecommunication contact 6 switch independent of1a, 1b change to indicate state triggeredly.Because this is a kind of logic or function, it is suitable for this or function being arranged inOn local marking device 3, because this function has met identical logic function.
In one application, what is mutually attached with the display device is this over-pressure safety device.Described switch 1a, 1bConnection is such as in by thermal coupling and one or more varistors.
According to another embodiment, described switch 1a, 1b by a kind of material of thermal release/decomposition it is described the firstState is fixed by separably positioning support.
A kind of embodiment is shown with a kind of example of overvoltage protection device in Fig. 1 to 3.At this, two by realityIt applies and is disposed on each varistor contact pin 2a, 2b to trigger the switching device of spring 1a, 1b.It is particularly advantageous to be weldedOn.The varistor can be for example placed into correspondingly shell-shell 7.It is formed as the marking device 3 of triggering sliding sitting frame,The marking device is pre-tensioned with the active force element 4 for being implemented as spring element, with the positioning device 5 that rotatably supportedThe direction mobile towards triggering is expressed on described two triggering spring 1a, 1b.The varistor is impaired, i.e. fault conditionWhen, the heating of one of described varistor, and thus the relevant varistor contact pin 2a or 2b to it is described relatedTriggering spring 1a, 1b be also isolated.Therefore, the marking device 3 can be together with 5 displacement of the positioning device.It is now assumed that the triggeringSpring 1a isolation/triggering.The positioning device 5 moves through on the triggering spring 1b not being triggered, the marking device 3It indicates " failure "（fault）State, and manipulate the telecommunication contact 6.
Ensured by the rotary type positioning device 5, described second triggering spring 1b's not being triggered is subsequentTriggering is feasible from now on.
In the embodiment of Fig. 4 to 6, overall compact form is shown.Wherein, the anchor point is by that can revolveTurn the rocking bar 6.1 or 6.2 that carries provide.The rocking bar 6.1 and 6.2 is pre- with each from spring element 8Tensioning.If the varistor contact pin 2a heating, the switch element 1a is just detached with the varistor contact pin, and is dischargedThe path for going out the rotary motion for the rocking bar 6.1, as in the comparison as Figures 5 and 6 institute it is confirmable.But therefore,Geometry of the anchor point of the rocking bar 6.1 and 6.2 for the positioning device 5 is also interfered, toStart on the marking device 3 around the rotation of rotary shaft, the marking device under the influence of its present described active force element 4Equally it is subjected to displacement under the influence of the active force element.Ensured by the rotary type positioning device 5, described secondThe subsequent triggering of a triggering spring 1b not being triggered is feasible from now on.
By the embodiment of the utility model, can now space be being saved and include few constituent element while providesA kind of or function, to form a kind of cost advantages and reliable system.