CN109687393A - Overvoltage protection device - Google Patents
Overvoltage protection device Download PDFInfo
- Publication number
- CN109687393A CN109687393A CN201811216245.2A CN201811216245A CN109687393A CN 109687393 A CN109687393 A CN 109687393A CN 201811216245 A CN201811216245 A CN 201811216245A CN 109687393 A CN109687393 A CN 109687393A
- Authority
- CN
- China
- Prior art keywords
- disconnection
- conductive
- overvoltage protection
- contact
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/008—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for protective arrangements according to this subclass
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
- H01C7/12—Overvoltage protection resistors
- H01C7/126—Means for protecting against excessive pressure or for disconnecting in case of failure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T1/00—Details of spark gaps
- H01T1/14—Means structurally associated with spark gap for protecting it against overload or for disconnecting it in case of failure
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/042—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage comprising means to limit the absorbed power or indicate damaged over-voltage protection device
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/044—Physical layout, materials not provided for elsewhere
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/74—Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
- H01H37/76—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
- H01H37/761—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material with a fusible element forming part of the switched circuit
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T1/00—Details of spark gaps
- H01T1/12—Means structurally associated with spark gap for recording operation thereof
Abstract
A kind of overvoltage protection device (1) has shown and described, it is with shell (4, 5), construction component (6) at least one limitation over-voltage, device is disconnected at least one, and there is the signal projector of the state for overvoltage protection device (1) described in remote reporting, wherein, at least one described disconnection device can movably be arranged in the shell (4) and keep the construction component of the limitation over-voltage electrically disconnected in the case where the construction component (6) of the limitation over-voltage distributed overload, mode is: the disconnection device is moved into the second position from first position.In overvoltage protection device according to the present invention (1), be accomplished by the following way in a simple manner and using less component come the state of overvoltage protection device described in remote reporting (1): the device that disconnects has the region (11) for capableing of conduction；The signal projector has at least two electrical contacts (12,13), and the region (11) that can be conductive for disconnecting device and at least two contact (12,13) common functionally formed switch, wherein, described two contacts (12,13) are connected to each other in a position for disconnecting device by the region (11) that can be conductive, and described two contacts (12,13) are not connected to each other in described another position for disconnecting device.
Description
Technical field
Break the present invention relates to a kind of with shell, the construction component at least one limitation over-voltage, at least one
The overvoltage protection device of opening apparatus and the signal projector with the state for overvoltage protection device described in remote reporting,
In at least one disconnect device can movably arrange in the housing and distributed limitation over-voltage construction component overload
In the case of keep the construction component of the limitation over-voltage electrically disconnected, mode is: the disconnection device is moved into the from first position
In two positions.
Background technique
Overvoltage protection device is widely used in different implementation variants for protecting circuit, facility, machine and equipment.Root
According to applicable cases and protection class, overvoltage protection device has the different construction components for limiting over-voltage and different constructions herein
Form.Here, especially spark gap, inflatable overvoltage arrester and piezoresistor and the combination quilt of these construction components
With the construction component for being restricted over-voltage.
The over-voltage (TOV) briefly occurred due to aging and in second zone, especially for piezoresistor
As the overvoltage protection device of discharger, the leakage current of piezoresistor will appear the increasing of simultaneously undesirable under operating voltage
Greatly.Therefore, the overvoltage protection device with piezoresistor as discharger usually has thermal cutoff devices, is filled by the disconnection
It sets so that the piezoresistor and current path to be monitored that can not work normally again disconnect.With regard to well known overvoltage protection device
Speech, is monitored according to state of the principle of temperature switch to piezoresistor, wherein in piezoresistor overheat-for example
Due to occur leakage current-piezoresistor and can be conductive connecting element between the soldering connection that is arranged just will disconnect,
This causes piezoresistor electrically disconnected.
695 03 743 T of DE discloses such overvoltage protection device, and there are two the varistors being connected in parallel for tool
Device, piezoresistor correspondingly can be disconnected individually in its end-of-life.For this purpose, two are configured to the disconnection tongue of elasticity
Conductive connecting element of capableing of be provided under the normal condition of the piezoresistor and correspondingly pass through its first end
Be fastened on the connection tongue of piezoresistor by soldering places, and its second end accordingly fixedly with connect contact connection.
If there is the heating of piezoresistor not allowed, then this fusing that will lead to soldering connection.Due to the disconnection tongue of elasticity
(normal condition of piezoresistor) deflects from its resting position and is thus pre-tightened in the state of brazed, described
The free end for disconnecting tongue bounces off the connection tongue of the piezoresistor in the case where soldering connection softens, by
This makes piezoresistor electrically disconnected.
Overvoltage protection device with thermal cutoff devices is also disclosed by 20 2,004 006 227 U1 of DE, wherein in this root
According to the embodiment of (Fig. 5), piezoresistor is also used as discharger to use.The over-voltage as disclosed in 20 2,004 006 227 U1 of DE
Protection element also has the disconnection element of insulation other than the connection with connecting element and thermal cutoff that can be conductive, this is disconnected
Katyuan part can be arranged in the housing and can be moved into the second position from first position by the power of spring element with elapsing
In.First connection contact is enduringly connect with the first connector of piezoresistor in an electrically conductive way.Second connection contact and energy
The first end of enough conductive connecting elements is conductively connected.Under the normal condition of over-voltage protection element, that is, work as varistor
When device is not allowed to heat, it is capable of the second end of conductive connecting element and passes through the connection of thermal cutoff and piezoresistor
The connection of second connector.In addition, the element that disconnects of insulation passes through the second end and varistor in connecting element that can be conductive
The soldering connection realized between second connector of device and its first position is maintained in a manner of the spring force for resisting spring element
In.
If overvoltage arrester due to piezoresistor lasting overload and so consumingly heating so that being more than preparatory
Given boundary temperature, then this disconnection for leading to soldering connection.Here, disconnection power of the element by spring element of insulation
It is moved in its second position, is arranged in the section that Katyuan part is interrupted in the second position and is capable of the of conductive connecting element
Between two ends and the second connector of piezoresistor, so that piezoresistor is electrically disconnected.It is moved to by will be switched off element
In the second position, furthermore by the electric arc being likely to occur when disconnecting open position by introduction into the disconnected of the insulation in open position
Katyuan part extinguishes (gel scht).
Known overvoltage protection device is by being equipped with the equipment lower component of connection clamping part and being configured to the mistake of " plug piece "
Protection element composition is pressed, the over-voltage protection element can be simply inserted into the equipment lower component.In this regard, being protected in over-voltage
In protection element, connection contact is configured to plug pin or plug sword (Steckerschwerter), corresponding with the connector plug
Plug ferrule be arranged in equipment lower component, the plug ferrule with for being electrically connected the connection clamping part of overvoltage protection device
Connection.Furthermore it is known that overvoltage protection device there are optical status displays and protected as over-voltage described in remote reporting
The converter contact of the signal projector of the state of protection element, wherein on the converter contact and plug piece in equipment lower component
Optical status displays can be manipulated by common mechanical steerable system.
10 2,009 036 125 A of DE also discloses a kind of over-voltage protection element with piezoresistor, the pressure-sensitive electricity
Resistance device is turned off in the case where the heating not allowed by the connection of thermal cutoff.In the over-voltage protection element, it can lead
The connecting element of electricity is so connect with the disconnection element of insulation, so that the disconnection element of the insulation described in the thermal connection of disconnection exists
It is moved between the connector of piezoresistor and the connection contact distributed.Connecting element be preferably constructed in herein metalwork and
It is arranged in the disconnection element formed by the barrier material plate of rigidity.
In order to elapse disconnection element, the release sliding part (Ausl of load on spring is disposed in shell
Seschlitten), when being thermally connected disconnection, the disconnection element of insulation is moved into the second position by the release sliding part.
It is also configured with hole in release sliding part, the release pin for manipulating remote reporting contact is arranged in the hole.Under release pin
The end in portion is stretched out from the opening of downside for being arranged in shell under the normal condition of over-voltage protection element, so that by described
Release pin is using the micro switch being arranged in equipment lower component as the letter for the state for being used for overvoltage protection device described in remote reporting
Number transmitter is manipulated.
Known overvoltage protection device realize the construction component to impaired limitation over-voltage, especially piezoresistor can
The disconnection leaned on.In addition, over-voltage protection element partly has optical status displays and extraly also realizes remote reporting
The state of the overvoltage protection device.However herein disadvantageously, overvoltage protection device needs relatively more component to this, thus
Installation becomes to expend high and thus becomes expensive.When overvoltage protection device not only have limitation over-voltage construction component, but also
When construction component at least two limitation over-voltages, then then especially suitable above situation, should monitor independently of one another and
The construction component is disconnected when impaired.In this regard, then multiple micro switch are arranged in equipment lower component, the thus quantity of component
All increase with there are also cost.
Summary of the invention
The purpose of the present invention is to provide overvoltage protection device described in a kind of beginning, the overvoltage protection device is as simple as possible
It singly constructs and can be manufactured inexpensively.Here, should especially realize mistake described in remote reporting in a simple and reliable manner
The state of pressure protection equipment.
The purpose is achieved in the overvoltage protection device described in the beginning of the feature with Patent right requirement 1.
In overvoltage protection device according to the present invention, disconnecting device has the region for capableing of conduction, and the signal projector has
There are at least two electrical contacts, wherein the region that can be conductive for disconnecting device is at least two contact jointly in function
Can on form switch.Described two contacts are capable of conductive region in a position for disconnecting device each other by described
Connection, and described two contacts are not connected to each other in described another position for disconnecting device.
It, can be by constructing at least two electrical contact and disconnecting device in overvoltage protection device according to the present invention
Be capable of conductive region to eliminate the need for traditional switch, especially micro switch, this point and significant saving possibility are phases
It closes.Exactly, the function of switch is directly taken over by the region for capableing of conduction of contact and disconnection device, so that
The mechanical operating element disconnected between device and usually used switch can be saved.Here, two can simply be used
As electrical contact, the electrical contact can be by disconnecting the region that can be conductive of device each other for the end of route or printed conductor
Connection.However it is also contemplated that, the electrical contact is by two contact sleeves at thus then described to be capable of conductive area
There are two the corresponding contact plug being electrically connected to each other, the contact plug can be inserted into contact casing domain tool.Certainly, it connects
The arrangement of touching casing and contact plug can also be replaced, so that the electrical contact is formed by corresponding contact plug and two electric each other
The contact casing of connection is configured as region that can be conductive.
According to by thisInventionOvervoltage protection device a kind of preferred design scheme, when disconnect device be located at its first
When setting middle, two contacts are connected to each other by disconnecting the region that can be conductive of device, are limited described in the first position
The construction component of over-voltage does not disconnect.Two contacts are not electrically connected to each other in the second position for disconnecting device then, described the
The construction component that over-voltage is limited described in two positions is electrically disconnected by disconnecting device.Two electrical contacts can be led with disconnection device
Thus the region of electricity functionally forms decoupler, i.e., when the disconnection device is moved into its second position from its first position
When middle, the connection of the electricity between two contacts is interrupted, the construction component that over-voltage is limited described in the second position is also electric disconnected
It opens.
It according to a kind of alternative design scheme, disconnects device and so constructs, be located in its first position when disconnecting device
When, two contacts are not electrically connected to each other, and the construction component that over-voltage is limited described in the first position does not disconnect.If there is
The overload of the construction component of the limitation over-voltage, so that the disconnection device is moved into its second position from its first position
When, then this leads to following situations: that is, two electrical contacts are connected to each other by disconnecting the region that can be conductive of device.Two
Thus electrical contact and the region that can be conductive for disconnecting device functionally form closer, i.e., when the disconnection device is moved into
When into its second position, the connection of electricity is established between two contacts, and the structure of over-voltage is limited described in the second position
Make element disconnection.
In another design scheme of the invention, signal projector not only has there are two electrical contact, but also there are three having
Electrical contact, wherein the first contact and the second contact are connected to each other in a position for disconnecting device, and first touching
Head and the third contact are connected to each other in described another position for disconnecting device by capableing of the region of conduction.In the position
In setting, first contact and second contact are then no longer connected to each other.In this embodiment, three electrical contacts
A kind of converter is functionally consequently formed jointly with the region that can be conductive for disconnecting device.
According to the first embodiment of the design scheme, the first contact and the second contact are in the first position for disconnecting device
In be connected to each other by capableing of conductive region.If disconnecting device to be moved into its second position from its first position, then
This causes the first contact and the second contact no longer to pass through to be capable of conductive region and be electrically connected to each other, but the first contact and third touching
Head is electrically connected to each other by region that can be conductive.Thus three contacts follow one another on the moving direction for disconnecting device
Ground arrangement, wherein the first contact is between the second contact and third contact.
In signal projector tool, there are three the another of electrical contact to implement in variant, first contact and second touching
Head is connected to each other in the first position for disconnecting device by the contact that can be moved.In the second position for disconnecting device
In, the first contact and third contact, which then pass through, to be disconnected the conductive region of capableing of of device and is connected to each other, and the first contact and the
Connection between two contacts is disconnected by the contact that can be moved.In this regard, region preferable configuration that cannot be conductive is disconnected
On opening apparatus, which abuts the region that can be conductive and is arranged.Disconnect the region that cannot be conductive of device herein
Contact for that will move is moved into such position, in this position, when disconnecting device by from its first position
When being moved into its second position, the first contact and the second contact are not connected to each other.
As a result, in overvoltage protection device according to the present invention, traditional switch passes through at least two electrical contacts and disconnection
The region that can be conductive of device is replaced, and can also individually monitor multiple limitation over-voltages with method in a simple manner
Construction component, wherein then the construction component of each limitation over-voltage is assigned the disconnection device and two with region that can be conductive
A electrical contact.As previously having been described above, electrical contact herein can be simply by two lines road or two printed conductors
Two ends are formed, and can be realized the state of overvoltage protection device described in remote reporting by the electrical contact.Here, disconnecting dress
The region that can be conductive set for example is formed by the region of used cable or the respective metal for disconnecting device.Together
Sample is made of in corresponding region synthetic material that can be conductive it is also possible that disconnecting device.
According to the two in principle embodiment of overvoltage protection device, it is provided at least in the overvoltage protection device
Two limit the construction component of over-voltage and are correspondingly also equipped at least two disconnection devices, wherein the construction member of limitation over-voltage
Part is assigned disconnection device respectively, provides according to the present invention, signal projector tool there are two electrical contact and can move, can
Conductive connector, they functionally form switch, wherein by being applied to it in the region of the contact therebetween
On spring element be loaded with such spring force, the spring force perpendicular in its longitudinal extension part be directed toward.Two disconnection devices
An end of loaded contacts is distinguished in its first position at this, so that the contact is to resist the bullet applied on it
The mode of spring force is maintained in first position.On the contrary, if at least one of two disconnection devices disconnect device be located at its
In two positions, then the connector that can be conductive is moved into another position by the spring force of application on it.?
In one position of connector, two contacts are electrically connected to each other by connector herein, and in another position of connector,
Described two contacts are not electrically connected to each other.
In a kind of design scheme of overvoltage protection device, connector can move, can be conductive forms one kind and shakes
Bar (Wippe), when described two disconnection devices are located in its first position, the rocking bar is then only to resist the bullet of spring element
The mode of spring force is maintained in first position.On the contrary, if described two one disconnected in device or described two disconnections dress
Set and be all located in its second position, then connector due to spring element spring force and be moved to second or from its first position
In three positions.
According to the first design scheme of overvoltage protection device, two electrical contacts and the connector that can be moved are collectively formed
Such decoupler, when described two disconnection devices are located in its first position, two electrical contacts described in the decoupler
Connector by capableing of conduction is connected to each other.On the contrary, if at least one of described two disconnection devices disconnect device position
In its first position, this causes the connector for capableing of conduction to be moved into another position due to the spring force of spring element
In, two contacts described in another described position no longer pass through the connector and are electrically connected to each other.
According to a kind of alternative design scheme, two electrical contacts and connector that can be conductive also may be constructed such that one
Kind closer.In this case, connector that can be conductive is electrically connect with a contact in two contacts.Such as
Two disconnection devices of fruit are located in its first position, then the connector that can be conductive is by described two disconnection devices to support
The mode of anti-application spring force on it is held in this position, in the position described in connector not with conductive side
Formula is connect with the second contact.On the contrary, if at least one of described two disconnection devices disconnect device and are located at its second position
In, then it is capable of conductive connector and is moved into due to the spring force of spring element in such position, in this position should
Connector is electrically connect with the second contact at least with an end in two end.
According to that can implement particularly preferred design scheme of the invention used in variant previously described, one disconnected
Opening apparatus or multiple disconnection elements for disconnecting device and being respectively provided with connecting element and insulation that can be conductive.In the structure of limitation over-voltage
Make under the normal condition of element, limit the construction component of over-voltage connector pass through herein thermal cutoff connection with distributed can
The first end of conductive connecting element connects in an electrically conductive way, wherein the disconnection element of the distributed insulation passes through
Connecting element that can be conductive is maintained in first position in a manner of resisting the power applied on it.It is being more than described limited
Occur disconnecting the thermal connection in the case where the previously given boundary temperature of the construction component of pressure, so that the disconnection element is logical
It crosses the power applied on it and is moved into the second position, be arranged in limit in the disconnection section that Katyuan part is interrupted in the second position
First connector of the construction component of over-voltage processed and it is capable of between the first end of conductive connecting element, thus the electrically disconnected limit
The construction component of over-voltage processed.
Disconnecting device can refer to be known thermal cutoff devices for its construction in principle and its mode of action,
The connector that the construction component of over-voltage is limited described in the disconnection device passes through the connecting element reality for capableing of conduction under normal circumstances
It is existing, and existed in the case where the heating of the construction component for being connected to the limitation over-voltage not allowed by the disconnection element of insulation
It limits the corresponding connector of the construction component of over-voltage and is capable of between the end of the connecting element of conduction and move and be disconnected element
It interrupts.
As the construction component of limitation over-voltage, the construction component of the limitation over-voltage passes through in the case where the heating not allowed
The connection of thermal cutoff is electrically disconnected, can be for example using inflatable overvoltage arrester.However, it is preferred that over-voltage according to the present invention is protected
The construction component that equipment has at least one piezoresistor as limitation over-voltage is protected, so that next referring to pressure most of the time
Sensitive resistor, without should limit the invention to and this.The first end of connecting element that can be conductive and the pressure-sensitive electricity distributed
The connection of thermal cutoff hindered between the connector of device is preferably constructed in soldering connection, makes it possible to and correspondingly selecting solder
Boundary temperature is adjusted, the thermal connection disconnects since the boundary temperature.
In the first design scheme of the invention, wherein disconnecting device has the region for capableing of conduction, it is then able to lead
The region of electricity, which is built into, to be disconnected on element.Thus the disconnection element of other insulation has region that can be conductive.It is described
Be capable of conductive region can for example by the metallization on the end side of disconnection element or the cable being placed on the end side or
Printed conductor is formed.
The advantageous design scheme of another kind according to the present invention, at least one described disconnection element is in a manner of it can rotate
Arrangement in the housing, is moved into its second position from its first position by pivot movement so that disconnecting element.It disconnects
The rotation axis of element is preferably formed by the pivot journal (Drehzapfen) for constructing in the housing herein, relative to the rotary shaft
Neck is configured with corresponding opening in disconnecting element.It is equally good to be, it can also the corresponding rotation of construction on disconnecting element
Axle journal, the pivot journal are embedded into the intracorporal corresponding opening of shell.It is described as the alternative solution for the arrangement that can be rotated
At least one disconnects element and can also be arranged in a manner of it can be linearly moved in the housing, wherein passage direction can be both parallel
Extended again perpendicular to the longitudinal axis of overvoltage protection device in longitudinal axis.
In order to enable at least one described disconnection element can be in the hot linked situation of disconnection from its first position quilt
It is moved into its second position, a power is applied on the disconnection element.Preferably, the power is by arranging at least one in the housing
A spring element applies.The spring element is fastened on the axle journal in shell this using one end and using its another
End is fastened on the corresponding axle journal disconnected on element.
To enable conductive connecting element be thermally connected disconnect in the case where from its first position enter its
In two positions, the connecting element is preferably elastically constructed and is deflected in its first position from its resting position.It disconnects
Hot linked situation under, connecting element is then due to its spring force and from its first position springing into its second position.It should
It is mobile to introduce the connector of piezoresistor and the first end of connecting element additionally by the disconnection section that will be switched off element
Between open position in and assisted.
Preferably, overvoltage protection device according to the present invention not only has for overvoltage protection device described in remote reporting
The signal projector of state, and furthermore also there are optical status displays.In this regard, disconnecting element has label section, make
The optical status displays are obtained directly to be formed by disconnection element.The form of construction in the housing is accordingly dimensioned such ruler herein
It is very little, so that the label section is become by the form from external visible or invisible according to the position for disconnecting element.Pressure
The optical display of the state of sensitive resistor preferably realized by corresponding color display herein, thus the label section
Or the entire element that disconnects has corresponding color, such as red.
Overvoltage protection device according to the present invention is advantageously made of plug piece and equipment lower component, wherein in the plug
The construction component and at least one disconnection device of at least one limitation over-voltage are disposed in part, and in the equipment lower component
It is disposed with the signal projector at least two electrical contacts and the connection clamping part for being electrically connected the overvoltage protection device.
In order to manipulate the contact by the section that can be conductive for disconnecting element or in order to manipulate the contact that can be moved
Part is configured with such opening in the downside towards the equipment lower component of the plug casing, when the plug piece quilt
When being inserted into the equipment lower component, at least one described disconnection element or disconnection device are capable of conductive region with it and are passed through
The opening is extend into the plug casing.
Detailed description of the invention
Specifically, there are a variety of feasible programs to design and improve over-voltage protection element according to the present invention.In this regard, reference
It is placed on the Patent right requirement of Patent right requirement 1 and the next explanation in conjunction with attached drawing to preferred embodiment.Wherein
It shows:
Fig. 1 is that the over-voltage according to the present invention for being located at normal condition and having electrically disconnected piezoresistor (Varistor) is protected
Protect the simplification figure of the preferred embodiment of equipment；
Fig. 2 is the first change of the signal projector of the overvoltage protection device with the piezoresistor positioned at two different states
The schematic diagram of body；
Fig. 3 is the schematic diagram of the variant of the embodiment of the signal projector positioned at two different states according to fig. 2；
Fig. 4 is the schematic diagram of the another variant of the embodiment of the signal projector positioned at two different states according to fig. 2；
Fig. 5 is the another of the signal projector for having the overvoltage protection device of the piezoresistor positioned at two different states
The schematic diagram of one variant；
Fig. 6 is the schematic diagram according to the variant of the embodiment of the signal projector positioned at two different states of Fig. 5；
Fig. 7 is the schematic diagram according to the another variant of the embodiment of the signal projector positioned at two different states of Fig. 5；
Fig. 8 shows the simplification figure of two embodiments of the disconnection element of overvoltage protection device；
Fig. 9 is the signal projector for having the overvoltage protection device of two piezoresistors positioned at three different conditions
The schematic diagram of embodiment；
Figure 10 be according to the schematic diagram of the variant of the embodiment of the signal projector positioned at three kinds of different states of Fig. 9, with
And
Figure 11 is the signal projector for having the overvoltage protection device of four piezoresistors positioned at three kinds of different conditions
Embodiment schematic diagram.
Specific embodiment
Fig. 1 shows the preferred embodiment of overvoltage protection device 1 according to the present invention with simplification figure.Overvoltage protection device 1
Can construct, i.e., be made of plug piece 2 and equipment lower component 3 in two style, as its it is shown in Fig. 1 go out as.Plug piece 2
Then it can be easily inserted on (aufgesteckt) to the equipment lower component 3 of U-shaped, and for example in order to replace
(Austausch) plug piece 2 of defect also and easily removes (abgezogen) from equipment lower component 3, without disconnecting thus
The route being connected in equipment lower component 3.Plug piece 2 has plug casing 4 and equipment lower component 3, base housing
(Sockelgeh use) 5, when plug piece 2 is inserted into equipment lower component 3, they can be with mutually locking (verrasten).
In the embodiment of the preferred two-piece type of overvoltage protection device 1, therefore shell is made of plug casing 4 and base housing 5.
Overvoltage protection device 1 has construction component of at least one piezoresistor 6 as limitation over-voltage, in Fig. 1
It is represented by dashed line.In an illustrated embodiment, piezoresistor 6 and disconnection device are collectively arranged in plug casing 4, wherein
Device is disconnected to be made of the disconnection element 8 of connecting element 7 and insulation that can be conductive.Connecting element 7 and insulation with electricity
The structure for disconnecting the disconnection device of element 8 can be seen in Fig. 2 to 7.The piezoresistor 6 shown in such as Fig. 2 a is just
Under normal state, the first connector 9 of piezoresistor 6 passes through connection (thermisch of the soldering connection as thermal cutoff
Auftretende Verbindung) it is connect in an electrically conductive way with the first end of connecting element 7 that can be conductive.For this purpose,
Such opening 10 is configured in disconnecting element 8, the first end of connecting element 7 that can be conductive is by the opening via pricker
Weldering connection is connect with the first connector 9 of piezoresistor 6.In addition, disconnect element 8 by piezoresistor 6 and connecting element 7 it
Between soldering connection be maintained in its first position.
It is then more than that previously given boundary temperature leads to hot linked disconnection if 6 heating of piezoresistor
(Auftrennen), that is to say, that lead to the thawing of soldering connection so that elasticity connecting element 7 from its deflect first position
It bounces back into the second position of its relaxation.It is moved into its second position here, disconnecting element 8, is disconnected in the second position
The disconnection section of element 8 is arranged between the first connector 9 of piezoresistor 6 and the first end of connecting element 7, that is,
It says, the opening 10 disconnected in element 8 is then no longer on the first connector 9 of piezoresistor 6, to make piezoresistor 6
It is electrically disconnected.The state is for example shown in figure 2b.
In principle the first of the overvoltage protection device according to the present invention shown in Fig. 1 to 8 is implemented in variant,
What it insulated, which disconnects element 8, has the region 11 for capableing of conduction, and the regional structure is in disconnection element 8 towards the equipment lower part
On the side of part 3.As especially it can be seen in fig. 8 that region 11 that can be conductive for example disconnects the side of element 8 by being fastened on
Cable or printed conductor on face are formed.However, equally well it is also possible that disconnect element 8 has gold on the side
Categoryization portion is made of synthetic material (Kunststoff) that can be conductive in this region.
By means of disconnecting element 8, in overvoltage protection device 1 according to the present invention, not only electrically disconnected in damaged condition and mistake
The piezoresistor 6 of heat, and manipulate the signal projector of the state for overvoltage protection device 1 described in remote reporting.?
According in the embodiment of Fig. 1 to 4, there are two contact 12,13, the contact and the energy for disconnecting element 8 to this tool for signal projector
Enough conductive regions 11 are common functionally to form switch.If disconnecting element 8 to be located in the embodiment according to fig. 1a with 2a
In its first position, then described two contacts 12,13 are electrically connected to each other by region 11 that can be conductive, to be closed
(geschlossen) signal connecting with the contact 12,13 for the state of overvoltage protection device 1 described in remote reporting returns
Road.And according to Fig. 1 b and 2b, it is located in its second position if disconnecting element 8, the piezoresistor 6 described in the second position
Electrically disconnected, then the conductive region 11 of capableing of for disconnecting element 8 is spaced apart with described two contacts 12,13, so that they are not each other
Electrical connection.Then (unterbrochen) corresponding signal circuit is interrupted.It two contacts 12,13 and disconnects element 8 and can lead
Thus (verhalten) is functionally worked as decoupler in the region 11 of electricity.
Unlike this, two contacts 12,13 and it is capable of conductive region 11 in the variant according to Fig. 3 and 4 such as closer
(Schlie er) equally works.According to Fig. 3 a and 4a, if disconnect element 8 is located at its first in described two variants
In setting, then two contacts 12,13 are not connected to each other by capableing of the region 11 of conduction.It is first when disconnecting however according to Fig. 3 b and 4b
When part 8 is located in its second position, the piezoresistor 6 of electrically disconnected overheat (ü berhitzter) in the second position, then
Region 11 that can be conductive contacts two contacts 12,13, so that they are connected to each other by region 11 that can be conductive.Here,
The difference for implementing variant according to the two of Fig. 3 and 4 is to disconnect moving direction of the element 8 relative to described two contacts 12,13.
And in the embodiment according to Fig. 3, the element 8 that disconnects is mobile perpendicular to the imaginary connecting line between two contacts 12,13,
The moving direction of element 8 is disconnected in the imaginary connecting line being parallel between two contacts 12,13 in the embodiment according to Fig. 4.
Here, the common ground of the two embodiments is, the spring for disconnecting element 8 and passing through at least one spring element 15
Power is linearly pushed in its second position from its first position.This is also applied for two implementation variants according to Fig. 1 and 2.
Unlike this, disconnect element 8 be not by the spring force of spring element 15 in the embodiment according to Fig. 5 linearly elapse, and
It is to be rotated.
Furthermore in the implementation variant, other than two the first contacts 12,13, it is additionally provided with third contact 14.In root
In first position according to the disconnection element 8 of Fig. 5 a, two the first contacts 12,13 are conductive by disconnecting capableing of for element 8 herein
Region 11 is connected to each other, and piezoresistor 6 is not electrically disconnected in the first position.On the contrary, in the disconnection element 8 according to Fig. 5 b
The second position in, the disconnection element 8 is so rotated far along clockwise direction, so that present first contact 12 and third
Contact 14 is connected to each other by region 11 that can be conductive, and the first contact 12 is no longer connect with the second contact 13.
In two embodiments according to Fig. 6 and 7, signal projector also has there are three electrical contact 12,13 and 14, wherein root
It is electric each other according to the position or the first contact 12 that disconnect element 8 and the second contact 13 or the first contact 12 and third contact 14
Connection.In the embodiment according to Fig. 6, in both cases, the connection of the electricity between two contacts 12 and 13 or 12 and 14
It is realized herein by disconnecting the region 11 that can be conductive of element 8.It is different, in the embodiment according to Fig. 7 additionally
The contact 16 that can be moved, the first contact 12 and the second contact 13 are provided with by the contact in the disconnection element 8
First position in be electrically connected to each other (Fig. 7 a).On the contrary, in the second position for disconnecting element 8, the first contact 12 and the
Two contacts 13 are no longer connected to each other (Fig. 7 b) by contact 16.But the first contact 12 and third contact 14 in this position
Region 11 that can be conductive by disconnecting element 8 is connected to each other.It disconnects element 8 and is abutting the region that can be conductive herein
There is region 17 that can not be conductive, the contact 16 that can be moved is so inclined by the region in the case where on 11
Turn, so that when the disconnection element 8 is located in its second position, the connection of the electricity between the first contact 12 and the second contact 13
It disconnects.
Fig. 8 shows two different embodiments for resolving Katyuan part 8 with simplification figure.Here, the region that can be conductive
11 are formed in the two embodiments by the cable being fastened on the side for disconnecting element 8.And in the implementation according to Fig. 8 a
In example, the cable extends in the whole length of side for disconnecting element 8, abuts in the embodiment according to Fig. 8 b described
Region 17 that cannot be conductive is configured on region 11 that can be conductive.Here, region 17 that cannot be conductive has inclined-plane, such as especially
Also by that can see in Fig. 7, when disconnecting element 8 and being moved in its second position from its first position, what this caused can to move
The deflection of contact 16 previously having had been noted above.
Fig. 9 and 10 shows two of the signal projector for having the overvoltage protection device 1 there are two piezoresistor
The schematic diagram of embodiment.Corresponding to two piezoresistors, then also there are two disconnect dress for tool for this overvoltage protection device 1
It sets, wherein piezoresistor is assigned disconnection device respectively.In figures 9 and 10, herein about the disconnection device correspondingly only
Show two disconnection elements 8.Here, accordingly illustrating three kinds of different states of two disconnection elements 8.According to Fig. 9 a
In the first state of 10a, two disconnection elements 8 are located in its first position.In second of state according to Fig. 9 b and 10b
In, a disconnection element 8 is located in its first position, and another disconnects element 8 and is located in its second position.According to Fig. 9 c and
In the third state of 10c, two disconnection elements 8 are eventually positioned in its second position.
In the implementation variant according to Fig. 9, there are two also additionally have other than contact 12,13 in addition to having for signal projector
The connector 18 that can be moved is added by the spring element 19 for applying on it in the region of the connector therebetween
Carry the spring force F being directed toward perpendicular to its longitudinal extension part.In its first position, two disconnection elements 8 are respectively so to connection
The end 20 of part 18,21 loading forces so that connector 18 be maintained in the case where resisting the spring force F of spring element 19 its
In one position.In the first position of connector 18, two contacts 12,13 are electrically connected to each other by connector 18, to be closed
Corresponding signal circuit for the state of overvoltage protection device 1 described in remote reporting.
If disconnect element 8 be located in its second position, then this leads to following aspect according to Fig. 9 b: that is, connector 8 by
It is moved into the second position in spring force F, only the first end 20 of connector 18 is still touched with first in the second position
First 12 connection, and the second end 21 is arranged at interval with the second contact 13.Thus the electricity between two contacts 12,13 is interrupted
Connection.When being located in its second position according to two disconnection elements 8 of Fig. 9 c, connector 18 is located at the due to spring force F
In three positions, two ends 20,21 are spaced apart with two contacts 12,13 in the third place.In this case, it also interrupts
The connection of electricity between two contacts 12,13.
Thus connector 18 is worked as rocking bar due to the spring force F that applies in region therebetween, wherein
When two disconnection elements 8 are located in its first position, two contacts 12,13 then only by be capable of conductive connector 18 that
This electrical connection.Two contacts 12,13 be capable of conductive connector 18 in the embodiment according to Fig. 9 thus as decoupler
It works.
On the contrary, being located in its first position in the embodiment according to Figure 10 when according to two disconnection elements 8 of Figure 10 a
When, two contacts 12,13 are not just electrically connected to each other then.On the contrary, if at least one of two disconnection elements 8 disconnect element
In its second position, then the connection of the electricity between two contacts 12,13 is realized by capableing of the connector 18 of conduction.
Here, spring element 19 is electrically connect with the first contact 12 in the embodiment according to Figure 10, to work as at least one
Element 8 is disconnected when being located in its second position, the current loop being closed between two contacts 12,13.Thus according to Figure 10 b and
10c, connector 18 by spring force F be moved into (verbracht) to its second or the third place in, connect in the position
Two ends 20,21 of fitting 18 are electrically connect with the second contact 13.
Finally, Figure 11 shows the use according to two signal projectors of Fig. 9 in overvoltage protection device 1, the mistake
Pressure protection equipment have in total there are four piezoresistor and thus also there are four disconnection devices or four disconnection elements 8 for tool.Letter
Also tool is there are two connector 18 other than two contacts 12 and 13 herein for number transmitter, and the connector is correspondingly therebetween
Region in by 19 spring loaded F of spring element.Here, two contacts 12,13 and connector 18 are so connected in series, from
And once at least one disconnects element 8 and is located in its second position, that is to say, that electrically disconnected (abtrennen) piezoresistor,
Then interrupt the connection of the electricity between two contacts 12 and 13.
Herein for those skilled in the art self-evidently, similar to the embodiment according to Figure 11, once it presses
A piezoresistor in sensitive resistor is electrically disconnected, then can also monitor more than four piezoresistors and export long-range report
It accuses.In this regard, the quantity for disconnecting device or disconnecting element corresponding with the quantity of piezoresistor to be monitored is necessary, wherein
Two disconnection elements 8 disposed adjacent one another correspondingly can be with 18 collective effect of connector.If overvoltage protection device has
Such as six piezoresistors, then for state, six disconnection elements and three connectors described in disconnection and remote reporting
Be with three spring elements it is necessary, wherein each connector is arranged in series between two contacts 12,13.
Here, the original of the previously described signal projector for realizing the state for overvoltage protection device described in remote reporting
Manage without being limited thereto, even number piezoresistor be disposed in overvoltage protection device so that two disconnection elements respectively with connection
Part collective effect.In principle, also achievable to be, connector only disconnects element collective effect with one.It is pressed with such as five
In the overvoltage protection device of sensitive resistor, then correspondingly five disconnection elements and three connectors and three spring elements are
It is necessary, wherein two connectors in the connector are respectively with two disconnection element collective effects, and third connector is only
It is manipulated by disconnection element.
Claims (12)
1. overvoltage protection device (1) with shell (4,5), the construction component (6) at least one limitation over-voltage, has
At least one disconnects device and has the signal projector of the state for overvoltage protection device (1) described in remote reporting,
Wherein, at least one described disconnection device can be movably arranged in the shell (4) and in the limitation distributed
Make the construction component of the limitation over-voltage electrically disconnected in the case where construction component (6) overload of pressure, mode is: the disconnection is filled
It sets from first position and is moved into the second position,
It is characterized in that,
The device that disconnects has the region (11) for capableing of conduction,
The signal projector has at least two electrical contacts (12,13), and
The region (11) that can be conductive for disconnecting device is functionally formed jointly at least two contact (12,13)
Switch, wherein described two contacts (12,13) are by the region (11) that can be conductive in a position for disconnecting device
It is connected to each other in setting, and described two contacts (12,13) are not connected to each other in described another position for disconnecting device.
2. overvoltage protection device (1) according to claim 1, which is characterized in that there are three electricity for the signal projector tool
Contact (12,13,14), wherein the first contact (12) and the second contact (13) in a position for disconnecting device each other
Connection, and first contact (12) and the third contact (14) pass through institute in described another position for disconnecting device
It states and is capable of conductive region (11) and is connected to each other, and first contact (12) and second contact (13) are not connected to each other.
3. overvoltage protection device (1) according to claim 2, which is characterized in that first contact (12) and described
Two contacts (13) are connected to each other in a position for disconnecting device by the contact (16) that can be moved.
4. overvoltage protection device (1) according to claim 3, which is characterized in that abutting the area that can be conductive
In the case where on domain (11), region (17) that cannot be conductive is constructed on the disconnection device, can be by the region by institute
The contact (16) that stating can move is moved into following position, in the position first contact (12) and described second
Contact (13) is not connected to each other.
5. overvoltage protection device (1) according to any one of claim 1 to 4, which is characterized in that described at least one is disconnected
Opening apparatus has the disconnection element (8) of connecting element (7) and insulation that can be conductive, so that
Under the normal condition of the construction component (6) of the limitation over-voltage, the connector of the construction component (6) of the first limitation over-voltage
(9) it is connect in an electrically conductive way by the connection of thermal cutoff with the first end of the connecting element (7) that can be conductive, and
Wherein, disconnection element (8) is capable of conductive connecting element (7) by first to resist the side for applying power (F) on it
Formula is maintained in first position,
In the case where being more than the previously given boundary temperature of the construction component (6) of the limitation over-voltage, the heat is disconnected even
It connects and is moved into disconnection element (8) in the second position by the power of application on it, the institute in the second position
State disconnect element (8) disconnections section be arranged in it is described limit over-voltage construction component (6) the first connector (9) and it is described can
Between the first end of conductive connecting element (7), and
It is described can conductive region (11) be arranged on the disconnection element (8).
6. overvoltage protection device (1) with shell (4,5), the construction component (6) at least two limitation over-voltages, has
At least two disconnect device and have the signal projector of the state for overvoltage protection device (1) described in remote reporting,
Wherein, the construction component (6) point for disconnecting device and capable of being movably arranged in the shell (4) and limiting over-voltage
It is not assigned disconnection device, and makes described limited in the case where the construction component (6) of the limitation over-voltage distributed overload
The construction component of pressure is electrically disconnected, and mode is: the disconnection device is moved into the second position from first position,
It is characterized in that,
Signal projector tool is described there are two electrical contact (12,13) and can move, connector (18) that be capable of conduction
Electrical contact and connector functionally form switch,
It is loaded by the spring element (19) of application on it perpendicular to it in the region of the connector (18) therebetween
The spring force that longitudinal extension part is directed toward, and
Described two disconnection devices distinguish end (20,21) loading force so to connector (18) in its first position, make
The connector (18) is obtained to be maintained in first position in a manner of resisting the spring force applied on it, and when described two disconnected
When at least one of opening apparatus disconnection device is located in its second position, the connector (18) can be by applying on it
Spring force and be moved into another position, and
Described two contacts (12,13) are electrically connected to each other in the position of the connector (18) by the connector (18),
And described two contacts (12,13) are not electrically connected to each other in another position of the connector (18).
7. overvoltage protection device (1) according to claim 6, which is characterized in that the disconnection device is respectively provided with can
The disconnection element (8) of conductive connecting element (7) and insulation, so that
Under the normal condition of the construction component (6) of the first limitation over-voltage, construction component (6) of the first limitation over-voltage are connect
The first end for the connecting element (7) that head (9) is capable of conduction with described first by the connection of the first thermal cutoff is with conductive side
Formula connection, and wherein, described first disconnects the connecting element (7) that element (8) are capable of conduction by described first is applied with resisting
The mode for being added in power (F) thereon is maintained in first position,
Under the normal condition of the construction component (6) of the second limitation over-voltage, construction component (6) of the second limitation over-voltage are connect
The first end for the connecting element (7) that head is capable of conduction with described second by the connection of the second thermal cutoff connects in an electrically conductive way
It connects, and wherein, described second disconnects the connecting element (7) that element (8) are capable of conduction by described second is applied to resisting
The mode of power thereon is maintained in first position,
In the case where being more than the previously given boundary temperature of the construction component (6) of the first limitation over-voltage, described first
It is thermally connected disconnection and first disconnection element (8) is moved into the second position by the power of application on it, described
The first disconnection section for disconnecting element (8) described in the second position is arranged in the construction component (6) of the first limitation over-voltage
First connector (9) and described first is capable of between the first end of conductive connecting element (7),
In the case where being more than the previously given boundary temperature of the construction component (6) of the second limitation over-voltage, described second
It is thermally connected disconnection and second disconnection element (8) is moved into the second position by the power of application on it, described
The second disconnection section for disconnecting element (8) described in the second position is arranged in the construction component (6) of the second limitation over-voltage
First connector and described second is capable of between the first end of conductive connecting element (7).
8. the overvoltage protection device according to claim 5 or 7 (1), which is characterized in that at least one described disconnection element
(8) it linearly can movably or revolvably be arranged in the shell (4).
9. overvoltage protection device (1) according to any one of claim 1 to 8, which is characterized in that the overvoltage protection is set
Standby (1) is made of plug piece (2) and equipment lower component (3), and the construction component (6) of at least one limitation over-voltage and institute
State at least one disconnect device be arranged in the plug piece (2), and have at least two electrical contact (12,13) and
The signal projector of connection clamping part is arranged in the equipment lower component (3).
10. according to overvoltage protection device described in claim 5 and 9 (1), which is characterized in that the such cloth of the disconnection element (8)
It sets in the plug casing (4) of the plug piece (2), so that when the disconnection element (8) is located in its first position, the energy
Conductive region (11) is stretched out from the opening in the plug casing (4), and when the disconnection element (8) is located at its second position
When middle, it is internal that the region (11) that can be conductive for disconnecting element (8) is fully disposed in the plug casing (4).
11. according to overvoltage protection device described in claim 7 and 9 (1), which is characterized in that can the move, spring is born
The connector (18) and the spring element (19) of load also are disposed in the equipment lower component (3).
12. according to overvoltage protection device described in claim 7 and 9 (1), which is characterized in that the such cloth of the disconnection element (8)
It sets in the plug casing (4) of the plug piece (2), so that when disconnecting element (8) accordingly and being located in its first position,
One end correspondingly from the plug casing (4) opening stretch out, and when corresponding disconnection element (8) be located at its second
When in position, it is internal that one end is correspondingly fully disposed in the plug casing (4).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017124224.4 | 2017-10-18 | ||
| DE102017124224.4A DE102017124224B4 (en) | 2017-10-18 | 2017-10-18 | surge protection device |
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| Publication Number | Publication Date |
|---|---|
| CN109687393A true CN109687393A (en) | 2019-04-26 |
| CN109687393B CN109687393B (en) | 2020-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811216245.2A Active CN109687393B (en) | 2017-10-18 | 2018-10-18 | Overvoltage protection device |
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| Country | Link |
|---|---|
| CN (1) | CN109687393B (en) |
| DE (1) | DE102017124224B4 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112017920A (en) * | 2019-05-29 | 2020-12-01 | 菲尼克斯电气公司 | Overload protection assembly |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019112680B4 (en) | 2019-05-15 | 2021-08-12 | Phoenix Contact Gmbh & Co. Kg | Surge protection device |
| DE102020105025A1 (en) | 2020-02-26 | 2021-08-26 | Bayerische Motoren Werke Aktiengesellschaft | Connecting element for connecting at least two flat conductors |
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| DE4015301A1 (en) * | 1990-05-12 | 1991-11-14 | Bettermann Obo Ohg | Overvoltage protection indicator for electrical plants - has safety output devices in branches from phase lines to varistors unit with remote signalling relays |
| DE69503743T2 (en) * | 1994-12-05 | 1999-03-25 | Soule Materiel Electr | Protection device against transient overvoltages with varistors and thermal triggers |
| DE10107357C2 (en) * | 2001-02-07 | 2003-03-27 | Siemens Ag | Signaling device for displaying the response of a surge arrester |
| CN101938110A (en) * | 2009-06-25 | 2011-01-05 | 菲尼克斯电气公司 | Over-voltage protection element |
| CN102024542A (en) * | 2009-08-05 | 2011-04-20 | 菲尼克斯电气公司 | Overvoltage protection element |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE202004006227U1 (en) | 2004-04-16 | 2004-09-16 | Phoenix Contact Gmbh & Co. Kg | Surge protection device |
-
2017
- 2017-10-18 DE DE102017124224.4A patent/DE102017124224B4/en active Active
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| DE4015301A1 (en) * | 1990-05-12 | 1991-11-14 | Bettermann Obo Ohg | Overvoltage protection indicator for electrical plants - has safety output devices in branches from phase lines to varistors unit with remote signalling relays |
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| DE10107357C2 (en) * | 2001-02-07 | 2003-03-27 | Siemens Ag | Signaling device for displaying the response of a surge arrester |
| CN101938110A (en) * | 2009-06-25 | 2011-01-05 | 菲尼克斯电气公司 | Over-voltage protection element |
| CN102024542A (en) * | 2009-08-05 | 2011-04-20 | 菲尼克斯电气公司 | Overvoltage protection element |
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| CN112017920A (en) * | 2019-05-29 | 2020-12-01 | 菲尼克斯电气公司 | Overload protection assembly |
| CN112017920B (en) * | 2019-05-29 | 2023-05-12 | 菲尼克斯电气公司 | Overload protection assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102017124224B4 (en) | 2023-03-02 |
| DE102017124224A1 (en) | 2019-04-18 |
| CN109687393B (en) | 2020-10-27 |
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