CN203812665U - Overvoltage protection assembly - Google Patents
Overvoltage protection assembly Download PDFInfo
- Publication number
- CN203812665U CN203812665U CN201320775908.0U CN201320775908U CN203812665U CN 203812665 U CN203812665 U CN 203812665U CN 201320775908 U CN201320775908 U CN 201320775908U CN 203812665 U CN203812665 U CN 203812665U
- Authority
- CN
- China
- Prior art keywords
- housing
- overvoltage protection
- protection assembly
- dish type
- rheostat
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
- H01C7/102—Varistor boundary, e.g. surface layers
-
- 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
Abstract
The present invention relates to an overvoltage protection assembly comprising a disc-shaped varistor arranged in a housing enclosing a chamber and establishing an electrical contact thereto. According to the invention, the casing is in the form of a polyhedron, in particular a polygonal prism, a cube, a rectangular parallelepiped or a tetrahedron, and comprises an opening for inserting a plurality of disc-shaped varistors, each of which is mechanically connected to and abuts a section or portion of the inner side wall of the casing. The overvoltage protection assembly allows disk-shaped varistors to be connected in parallel in a particularly simple manner.
Description
Technical field
The utility model relates to one and comprises the rheostatic overvoltage protection assembly of dish type, and this dish type rheostat is disposed in the housing that is packaged with chamber, and dish type rheostat is set up and electrically contacted.
Background technology
From DE601 12 410T2 known a kind of overvoltage protection that comprises varistor disks.
The housing of this device based on thering is chamber and opening.In enclosure interior, be provided with sidewall and diapire, diapire has the contact zone that forms raised platforms.In addition, be provided with electrode member, another contact zone of the contact zone positioned opposite of mentioning for the first time described in described electrode member has, wherein said electrode member is arranged in chamber.Described housing and described electrode member relative to each other arrange and are configured so that wafer-like, dish type rheostat can be contained in chamber and electrically contact is possible.
According to DE699 32 170T2, the overcurrent protection device with rheostat disk of material also uses the housing that comprises chamber and the electrode member with contact zone.Also be provided with the wafer being formed by rheostat material, that this wafer comprises is opposite each other, the first and second wafer surface of plane substantially, comprises contact portion in it.Wafer is inserted in the chamber of housing and crimping contact (pressure-contacted).For crimping contact, be provided with a kind of spring member as biasing device.Especially, adopted a kind of resilient disc for director circle tubular, center contact.In addition, shell nozzle is closed by end cap, and this end cap has threaded part, to occur keeping necessary contact force effect under all situations.
According to DE699 32 170T2, housing wall is also used as electrode wall, and itself is connected to the rheostatic side of dish type.The large hot live vol of hot live vol of described electrode wall constituent ratio wafer.
The common ground of the scheme proposing is: really, substantially may also in cylindrical shell, be furnished with the multiple varistor disks that are stacked structure, but such stacked structure only forms and is connected in series at electric aspect.In the case of there is no the complex technology measure of intermediate insulation and arrange connecting line, being connected in parallel of each wafer or varistor disks is impossible, and this causes on the one hand structure spending to increase and causes on the other hand thermal defect.
Utility model content
In view of the foregoing; therefore; the purpose of this utility model refers to further developing based on the rheostatic overvoltage protection assembly of dish type; wherein; at least one rheostat, preferred multiple rheostats, are disposed in the housing that is packaged with chamber; its foundation is electrically contacted, and wherein contact type allows in simple especially mode, varistor disks to be connected in parallel.
A kind of overvoltage protection assembly is provided; described overvoltage protection assembly comprises dish type rheostat; described dish type rheostat is arranged in the housing that is packaged with chamber and to dish type rheostat and sets up and electrically contact; it is characterized in that; described housing is polyhedral form; described housing comprises for inserting rheostatic at least one opening of multiple dish types, and each dish type rheostat is all mechanically connected to part described in the part of housing madial wall and butt.
Preferably, in enclosure interior, insulating material insert is set, described insulating material insert is with the fixing described dish type rheostat of isolated mode.
Preferably, after the insertion rheostat of housing in remaining cavity space, introduce contact, described contact is set up with the rheostatic free side of dish type and is positioned at contact element in the rheostatic free side of dish type or being operatively connected of contact area.
Preferably, dish type rheostat is mechanically clamped in enclosure interior by means of contact.
Preferably, on housing or in housing, be formed with at least one threaded bolt, for install overvoltage protection assembly and/or for outside set up electrically contact.
Preferably, housing is made up of electric conducting material.
Preferably, housing is formed as radiator.
Preferably, the opening of housing is suitable for by means of lid or cap and is closed or is closed by embedding.
Preferably, dish type rheostat is mainly installed in housing in the mode that is pressed into cooperation.
Preferably, the insulating material insert that is specially frame-like comprises for the rheostatic leader of take-up reel shape, guiding groove or guiding channel.
Preferably, insulating material insert forms by being introduced in liquid state under reset condition in described housing or the material of viscosity, after described material solidifies, and described insulating material insert fixed disk shape rheostat.
Preferably, described housing is polygonal prism cylinder, cube, rectangular parallelepiped protrusion part or tetrahedral form.
Therefore, the utility model starts from one and comprises the rheostatic overvoltage protection assembly of dish type, and this dish type rheostat is disposed in the housing that is packaged with chamber, and its foundation is electrically contacted.
According to the utility model, housing is polyhedral form, specifically, is polygonal prism cylinder, cube, rectangular parallelepiped protrusion part or tetrahedral form, and this housing comprises for inserting the rheostatic opening of multiple dish types.Rheostat is all set up Mechanical Contact with portion's section or the part of housing madial wall, or butt housing madial wall.
Due to this common large-area butt in the respective planes part in housing madial wall portion section, the conductive shell of conductive shell or coating inside allows simply to electrically contact, for being connected in parallel of expectation is provided.In addition,, for the thermal loss that dissipates, large-area connection is set up and is contacted the heat transmission that provides good with varistor disks thereby with housing sidewall.
Between the rheostat that will insert and housing wall, can use a kind of for improving the device of the foundation electrically contacting.These devices can be for example conductive pastes or can be also Elastic Contact electrode or analog.
Be included in the setting surface design of the housing at the contact position place between housing change and resistance device in the another kind the contacting possibility scheme of setting up enhancing between rheostat and housing wall.For this point, circular recess or projection can be set on housing wall, the recess of described circle or projection are optimized contact and are prevented the creep flashover with respect to the end face of corresponding varistor disks simultaneously.
Owing to entering the accesibility of described housing and the shape that is polyhedron form of housing by above-mentioned opening, an embodiment of the present utility model allows to change and replace each varistor disks (if necessary), and this may be not easy to realize in the case of the stacked structure being conventionally threaded.
In a preferred embodiment of the present utility model, the insulating material insert of for example frame-like or support shape is arranged in housing, and described insulating material insert is with isolated mode fixed disk shape rheostat.
Insulating material insert imitates polyhedral structure in a preferred embodiment, and therefore may utilize to the full extent chamber.
For assembling, may first manufacture polyhedron, then insulating material insert is incorporated in polyhedral cavity space, to fix varistor disks thereafter.
As a kind of replacement scheme, still, also may varistor disks be fixed to (for example, by clamping) and, to insulating material insert, then the insulating material insert and the rheostatic module that so form are incorporated in polyhedron.
Insert after rheostat in remaining cavity space at housing, introduce contact, described contact is set up with the free side of varistor disks and the operability that is positioned at the contact element in the free side of varistor disks and is connected.
According to the quantity of the rheostatic free side surface that will contact, this contact can be for example cross body, star body or the analog with contact ear or contact zone.
By pivotable or rotation contact, may provide the electric and mechanical connection of the safety of the structure that comprises varistor disks, insulating material insert and housing.
Therefore,, by means of contact, varistor disks is mechanically clamped in housing, thereby is fixed simultaneously and electrically contacts.
In one embodiment, at least one threaded bolt can be set on housing or in housing, described threaded bolt is set up and is electrically contacted for attachment assembly and/or with outside.
Bolt can be realized by the form of through bolt.
In the time that housing is made up of electric conducting material, preferably select a kind of material that simultaneously forms best radiator.
Can close around opening or portion's section of the housing of threaded bolt by means of lid or cap, for lid or cap, depend on application-specific or degree of protection, additionally be provided with sealing device.
Dish type rheostat is mainly arranged on housing in the mode that is pressed into cooperation, and this is all favourable owing to can exempting scolding tin to connect for assembling and possible dismounting.
In an embodiment of the present utility model, insulating material insert can have leader, for the rheostatic guiding groove of take-up reel shape or guiding channel, thereby is further convenient to assembling, and the short-circuit protection of enhancing is provided, and realizes the spacing distance increasing.
Fix a kind of replacement scheme of rheostatic frame shape insulating material insert or in addition as already mentioned in isolated mode, in manufacture process, may form rheostat necessary insulating properties each other, because viscosity or liquid insulating material component (such as the mixture as resin/curing agent) are first introduced into.After this varistor disks is inserted, caused rheostat restriction position relative to each other in the time that solidification process completes.In this article, may first above-mentioned tackifying resin/hardener component be injected in housing, thereby form a framework, and in subsequent step, rheostat is inserted in described housing and by them and is solidificated in housing.
Brief description of the drawings
Hereinafter explain in more detail the utility model by means of accompanying drawing and by embodiment, in accompanying drawing:
Longitudinal sectional view and the transverse sectional view of the exemplary overvoltage protection assembly that is cube shaped that Fig. 1 (a) and Fig. 1 (b) illustrate respectively, this overvoltage protection assembly has insertion 4 dish type rheostats wherein;
Fig. 2 (a1) shows respectively vertical view cutaway drawing and the main cutaway view of looking of the erection sequence of overvoltage protection assembly to Fig. 2 (b4) to Fig. 2 (a4) and Fig. 2 (b1), from as polyhedral cube shaped housing, and insert the insulator as insulating material insert; And
Thereby showing insulating material insert or the Structural superposition of insulator in the part of bight, Fig. 3 forms the detail view of guiding channel.
Embodiment
Fig. 1 (a) (longitudinal sectional view) and Fig. 1 (b) (transverse sectional view) show respectively cube shaped polyhedron body 1, and it has varistor disks 2 in its housing madial wall part.In the example shown, be provided with four varistor disks that cover four housing madial walls.In addition, be provided with a kind of for the threaded bolt 3 of installation component mechanically.
The cube polyhedron body that Fig. 2 (a1) starts to Fig. 2 (a4) and Fig. 2 (b1) to the order shown in Fig. 2 (b4) being made up of electric conducting material (particularly metal) is (referring to Fig. 2 (a1), step 1, observes from top).
This body is in open top (referring to Fig. 2 (b1), step 1).
In the step 2 as shown in Fig. 2 (a2) and Fig. 2 (b2), can see insulator or insulating material insert 4 in can introducing by this open side.
In inserting after insulator 4, as described at Fig. 2 (a3) and Fig. 2 (b3), in step 3, can introduce four metal oxide varistors of disk-shaped structure, by overlapping in bight interior insulator (referring to Fig. 2 (a3), step 3).
In following step (referring to Fig. 2 (a4) and Fig. 2 (b4), step 4), electrode in inserting, metallic disc-shaped oxide rheostat 2 stands mechanical stress or clamping.
Contact 5 is criss-cross shape, in order to fix electric terminals device and/or whole assembly to be appended to carrier, this contact is connected to electrode 6 in screw thread 7 bolt shapes that are provided with.
Arrow as shown in step 4 as shown in Fig. 2 (a4) symbolically represent varistor disks 2 with respect to the mechanical grip of polyhedron body 1 with contact.
Fig. 3 illustrates the detailed view in the bight of two dish type rheostats 2 and insulating material insert 4, and described bight is for laterally fixing varistor disks 2 in the mode of guide portion section or guiding channel.
Install or stop bolt at the one-sided screw thread shown in Fig. 1 (a), Fig. 1 (b), Fig. 2 (a4) and Fig. 2 (b4) and also can pass through the form setting of through bolt, and do not depart from basic thought of the present utility model.
Claims (12)
1. an overvoltage protection assembly, described overvoltage protection assembly comprises dish type rheostat, described dish type rheostat is arranged in the housing that is packaged with chamber, and described dish type rheostat is set up and electrically contacted,
It is characterized in that,
Described housing is polyhedral form, and described housing comprises for inserting rheostatic at least one opening of multiple dish types, and each dish type rheostat is all mechanically connected to part described in the part of housing madial wall and butt.
2. overvoltage protection assembly according to claim 1, is characterized in that,
In enclosure interior, insulating material insert is set, described insulating material insert is with the fixing described dish type rheostat of isolated mode.
3. overvoltage protection assembly according to claim 1, is characterized in that,
After the insertion dish type rheostat of housing in remaining cavity space, introduce contact, described contact is set up with the rheostatic free side of dish type and is positioned at contact element in the rheostatic free side of dish type or being operatively connected of contact area.
4. overvoltage protection assembly according to claim 3, is characterized in that,
Dish type rheostat is mechanically clamped in enclosure interior by means of contact.
5. according to the overvoltage protection assembly described in any one in claim 1-4, it is characterized in that, on housing or in housing, be formed with at least one threaded bolt, for install overvoltage protection assembly and/or for outside set up electrically contact.
6. according to the overvoltage protection assembly described in any one in claim 1-4, it is characterized in that, housing is made up of electric conducting material.
7. according to the overvoltage protection assembly described in any one in claim 1-4, it is characterized in that, housing is formed as radiator.
8. according to the overvoltage protection assembly described in any one in claim 1-4, it is characterized in that, the opening of housing is suitable for by means of lid or cap and is closed, or is closed by embedding.
9. according to the overvoltage protection assembly described in any one in claim 1-4, it is characterized in that, dish type rheostat is mainly installed in housing in the mode that is pressed into cooperation.
10. overvoltage protection assembly as claimed in claim 2, is characterized in that, the insulating material insert that is specially frame-like comprises for the rheostatic leader of take-up reel shape, guiding groove or guiding channel.
11. overvoltage protection assemblies as claimed in claim 2; it is characterized in that; insulating material insert forms by being introduced in liquid state under reset condition in described housing or the material of viscosity, after described material solidifies, and described insulating material insert fixed disk shape rheostat.
12. overvoltage protection assemblies as described in any one in claim 1-4, is characterized in that, described housing is polygonal prism cylinder, cube, rectangular parallelepiped protrusion part or tetrahedral form.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012023335 | 2012-11-29 | ||
| DE102012023335.3 | 2012-11-29 | ||
| DE102013005327.7A DE102013005327A1 (en) | 2012-11-29 | 2013-03-26 | Overvoltage protection arrangement with disk-shaped varistor |
| DE102013005327.7 | 2013-03-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203812665U true CN203812665U (en) | 2014-09-03 |
Family
ID=49622697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320775908.0U Expired - Fee Related CN203812665U (en) | 2012-11-29 | 2013-11-29 | Overvoltage protection assembly |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2738778B1 (en) |
| CN (1) | CN203812665U (en) |
| DE (1) | DE102013005327A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202016001937U1 (en) | 2016-03-23 | 2016-07-11 | DEHN + SÖHNE GmbH + Co. KG. | Overvoltage protection arrangement with a plurality of disc-shaped varistors arranged on a first side of an n-sided carrier plate |
| DE102016015593B4 (en) | 2016-06-10 | 2021-07-08 | Dehn Se + Co Kg | Overvoltage protection arrangement with several disk-shaped varistors arranged on a first side of an n-angular support plate |
| DE202017000117U1 (en) | 2016-06-22 | 2017-01-23 | DEHN + SÖHNE GmbH + Co. KG. | Overvoltage protection arrangement with at least one, arranged on a first side of a n-shaped support plate, disk-shaped varistor |
| DE202016107504U1 (en) | 2016-06-22 | 2017-03-02 | Dehn + Söhne Gmbh + Co. Kg | Overvoltage protection arrangement with at least one, arranged on a first side of a n-shaped support plate, disk-shaped varistor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6038119A (en) | 1998-09-21 | 2000-03-14 | Atkins; Ian Paul | Overvoltage protection device including wafer of varistor material |
| US6430020B1 (en) | 1998-09-21 | 2002-08-06 | Tyco Electronics Corporation | Overvoltage protection device including wafer of varistor material |
| DE102008048644B4 (en) * | 2008-08-01 | 2017-08-24 | DEHN + SÖHNE GmbH + Co. KG. | Overvoltage protection device with one or more parallel-connected, located in a structural unit overvoltage limiting elements |
| JP5203255B2 (en) * | 2009-02-27 | 2013-06-05 | 音羽電機工業株式会社 | Varistor device and manufacturing method thereof |
| DE102010015814B4 (en) * | 2010-04-20 | 2014-08-07 | Phoenix Contact Gmbh & Co. Kg | Snubber |
-
2013
- 2013-03-26 DE DE102013005327.7A patent/DE102013005327A1/en not_active Withdrawn
- 2013-11-19 EP EP13193541.3A patent/EP2738778B1/en not_active Not-in-force
- 2013-11-29 CN CN201320775908.0U patent/CN203812665U/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP2738778A1 (en) | 2014-06-04 |
| DE102013005327A1 (en) | 2014-06-05 |
| EP2738778B1 (en) | 2017-05-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20181129 |