CN109037004A - A kind of fuse switch of pressure fixing - Google Patents
A kind of fuse switch of pressure fixing Download PDFInfo
- Publication number
- CN109037004A CN109037004A CN201810873165.8A CN201810873165A CN109037004A CN 109037004 A CN109037004 A CN 109037004A CN 201810873165 A CN201810873165 A CN 201810873165A CN 109037004 A CN109037004 A CN 109037004A
- Authority
- CN
- China
- Prior art keywords
- fuse
- tabletting
- moving contact
- contact support
- clamping screw
- 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.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 230000014759 maintenance of location Effects 0.000 claims abstract description 19
- 230000000694 effects Effects 0.000 claims abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/54—Protective devices wherein the fuse is carried, held, or retained by an intermediate or auxiliary part removable from the base, or used as sectionalisers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/38—Means for extinguishing or suppressing arc
Landscapes
- Fuses (AREA)
Abstract
The present invention relates to electrical equipment technical fields, a kind of fuse switch of pressure fixing, including stationary contact bracket and moving contact support are disclosed, is hinged with cartridge fuse on stationary contact bracket, contact elastic slice is provided on moving contact support, cartridge fuse is closed by contact elastic slice and moving contact support；Stationary contact bracket and moving contact support are equipped with the retention mechanism for fixing fuse, retention mechanism includes clamping screw, holddown spring and the tabletting for compressing fuse, clamping screw passes through tabletting and is fixed on bracket, and holddown spring is socketed on clamping screw and holds out against tabletting；Torsional spring is additionally provided between moving contact support and cartridge fuse, torsional spring is to the elastic effect of cartridge fuse.Fuse both ends are fixed using retention mechanism, can be achieved with the fixation of fuse without demounting bolt, are conducive to improve working efficiency.Increase torsional spring in the moving position of moving contact support, when fuse disconnects, disconnects fuse sufficiently rapidly, realize quick arcing, improve security performance.
Description
Technical field
The present invention relates to electrical equipment technical fields, more particularly, to a kind of fuse switch of pressure fixing.
Background technique
At present fuse switch in power distribution network using very extensive, fuse switch is mounted on 10kV distribution wire
On the branch line of road, scope of power outage can be reduced, because it has an apparent cut-off point, has the function of disconnecting switch, to maintenance
Section route and equipment create a safety work environment, increase the sense of security of service personnel.Currently used drop type
Fuse is fixed using screw fixed form using bolt, and dismounting is inconvenient, and during tightening bolt,
Fuse end is easy the rotation with bolt and rotates stranded, seriously affects working efficiency.Meanwhile fuse switch outdoors when
Between it is long, be subject to nature and external force and destroy, due to lacking flick mechanism, when fuse disconnects, arcing rate is low, can not be quick
It disconnects.
Summary of the invention
In order to overcome at least one of the drawbacks of the prior art described above, the drop type for providing a kind of pressure fixing is molten by the present invention
Disconnected device avoids fuse and destroys by external force, and the retention mechanism combined using spring and tabletting can be achieved with melting without demounting bolt
The fixation of silk.Also, spring structure is increased by the moving position in moving contact support, when fuse disconnects, keeps fuse fast
It is fast sufficiently to disconnect, it realizes quick arcing, improves security performance.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
A kind of fuse switch of pressure fixing, stationary contact bracket and movable contact branch including being separately mounted to insulator both ends
Frame is hinged with cartridge fuse on the stationary contact bracket, contact elastic slice is provided on the moving contact support, the cartridge fuse passes through
The contact elastic slice and the moving contact support are closed；The stationary contact bracket and moving contact support are equipped with for fixing fuse
Retention mechanism, retention mechanism includes clamping screw, holddown spring and the tabletting for compressing fuse, and the clamping screw passes through
Tabletting is simultaneously fixed on bracket, and the holddown spring is socketed on clamping screw and holds out against tabletting；The moving contact support and molten
Torsional spring is additionally provided between fiber tube, the torsional spring is to the elastic effect of cartridge fuse.
Wherein, retention mechanism is used to fuse being fixed on fuse switch, unscrews clamping screw, and fuse is passed through tabletting
Clamping screw is tightened in bottom, is compressed using holddown spring and tabletting to fuse, and fuse is avoided to rotate and damage with bolt.
It is same only to unscrew clamping screw when replacing fuse, the new fuse of old change of fuse is pulled out, without dismantling completely, reduces work
Make step, is conducive to improve working efficiency.In addition, after fuse switch completes installation, the torsional spring set on moving contact support side
In preloading condition, compressed by moving contact support, there are interaction forces with cartridge fuse, when the fuse opening in cartridge fuse,
Torsional spring flicks rapidly cartridge fuse, disconnects fuse rapidly, realizes quick arcing.
Preferably, cartridge fuse is fixed in the torsional spring rotation, and torsional spring arm is pressed on moving contact support.Torsional spring and fuse pipe portion
Divide rotation connection, torsional spring arm one end is compressed by moving contact support, and preloading condition is in when being installed.
Preferably, the retention mechanism is to be threadedly coupled with the connection type of stationary contact bracket, moving contact support.Fastening
Clamping screw passes through tabletting and is threadedly coupled with stationary contact bracket, moving contact support in mechanism, when replacing fuse without tearing open completely
It unloads.
Preferably, the holddown spring internal diameter is slightly larger than clamping screw outer diameter.Holddown spring is socketed on clamping screw, is
It avoids holddown spring from swinging, the holddown spring of clamping screw outer diameter is slightly larger than using internal diameter.
Preferably, the clamping screw is flat head bolt.The nut of platform bolt is conducive to hold out against holddown spring, is not easy to take off
It falls.
Preferably, the tabletting with a thickness of 2-5mm.To reduce tabletting stress deformation, need to use has certain thickness
Tabletting.
Preferably, the quantity of the tabletting is one or two.Fuse can be pressed on using a tabletting by tabletting bottom
Fuse can be both pressed on most beneath tabletting bottom using two tablettings by portion, fuse can also be clamped in two tablettings it
Between.
Preferably, the material of the tabletting is red copper.Tabletting needs to have good guiding performance, generally uses red copper material
Tabletting.
Compared with prior art, the beneficial effects of the present invention are: the invention discloses a kind of drop types of pressure fixing to melt
Disconnected device, fuse both ends are fixed using the retention mechanism being made of clamping screw, holddown spring and tabletting, just without demounting bolt
It is able to achieve the fixation of fuse, reduces work step, is conducive to improve working efficiency.Meanwhile increasing in the moving position of moving contact support
Add torsional spring structure, when fuse disconnects, disconnects fuse sufficiently rapidly, realize quick arcing, improve security performance.
Detailed description of the invention
Fig. 1 is overall structure of the present invention.
Fig. 2 is 1 moving contact support schematic diagram of embodiment
Fig. 3 is the retention mechanism schematic diagram of embodiment 1.
Fig. 4 is the retention mechanism schematic diagram of embodiment 2.
Wherein, 1 stationary contact bracket, 2 moving contact supports, 3 cartridge fuses, 4 contact elastic slices, 5 retention mechanisms, 51 clamping screws,
52 holddown springs, 53 tablettings, 6 torsional springs, 7 fuses.
Specific embodiment
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；In order to better illustrate this embodiment, attached
Scheme certain components to have omission, zoom in or out, does not represent the size of actual product；To those skilled in the art,
The omitting of some known structures and their instructions in the attached drawings are understandable.Being given for example only property of positional relationship is described in attached drawing
Illustrate, should not be understood as the limitation to this patent.
The same or similar label correspond to the same or similar components in the attached drawing of the embodiment of the present invention；It is retouched in of the invention
In stating, it is to be understood that if the orientation or positional relationship for having the instructions such as term " on ", "lower", "left", "right" " length " " short " is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore describes position in attached drawing
The term for setting relationship only for illustration, should not be understood as the limitation to this patent, for the ordinary skill people of this field
For member, the concrete meaning of above-mentioned term can be understood as the case may be.
Below by specific embodiment, and in conjunction with attached drawing, technical scheme of the present invention is further described:
Embodiment 1
As shown in Figs. 1-2, a kind of fuse switch of pressure fixing is present embodiments provided, including stationary contact bracket 1 and dynamic
Contact holder 2 is hinged with cartridge fuse 3 on stationary contact bracket 1, contact elastic slice 4 is provided on moving contact support 2, cartridge fuse 3 passes through
Contact elastic slice 4 and moving contact support 2 are closed.
Wherein, stationary contact bracket 1 and moving contact support 2 are equipped with the retention mechanism 5 for fixing fuse 7, retention mechanism 5
Clamping screw 51, holddown spring 52 including tack and the tabletting 53 for compressing fuse 7, specifically, 52 internal diameter of holddown spring
Slightly larger than 51 outer diameter of clamping screw, using the tabletting 53 of red copper material, with a thickness of 3mm, 53 quantity of tabletting is one for tabletting 53.Lock
Tight bolt 51 passes through tabletting 53 and is threadedly coupled with bracket and is fixed, and holddown spring 52 is socketed on clamping screw 51 and holds out against
Tabletting 53；Torsional spring 6 is additionally provided between moving contact support 2 and cartridge fuse 3, torsional spring 6 is to the elastic effect of cartridge fuse 3.Specifically, it turns round
Cartridge fuse 3 is fixed in the rotation of spring 6, and torsional spring arm is pressed on moving contact support 2.
Retention mechanism 5 is used to fuse 7 being fixed on fuse switch, during installation, first unscrews clamping screw 51, will melt
Silk 7 passes through 53 bottom of tabletting, then tightens clamping screw 51, is compressed, is avoided to fuse 7 using holddown spring 52 and tabletting 53
Fuse 7 is rotated with bolt and is damaged.It is same only to unscrew clamping screw 51 when replacing fuse 7, it pulls out old change of fuse and newly melts
Silk reduces work step, is conducive to improve working efficiency without dismantling completely.
In addition, the torsional spring 6 set on 2 side of moving contact support is in preloading condition after fuse switch completes installation, top
Tight cartridge fuse 3, when the fuse 7 in cartridge fuse 3 is blown, torsional spring 6 flicks rapidly cartridge fuse 3, disconnects fuse rapidly, realizes
Quick arcing.
Embodiment 2
As shown in figure 3, a kind of fuse switch of pressure fixing is present embodiments provided, and it is similar to Example 1, it is different
It is that retention mechanism 5 uses the quantity of tabletting 53 for two in embodiment 2.
During installation, first unscrew clamping screw 51, by fuse 7 across and be clipped in two tablettings 53, then tighten locking
Bolt 51 is clamped fuse 7 using holddown spring 52 and two tablettings 53, and fuse 7 is avoided to rotate and damage with bolt.?
It is same only to unscrew clamping screw 51 when replacing fuse 7, the new fuse of old change of fuse is pulled out, without dismantling completely, reduces work
Make step, is conducive to improve working efficiency.
In addition, the torsional spring 6 set on 2 side of moving contact support is in preloading condition after fuse switch completes installation, top
Tight cartridge fuse 3, when the fuse 7 in cartridge fuse 3 is blown, torsional spring 6 flicks rapidly cartridge fuse 3, disconnects fuse rapidly, realizes
Quick arcing.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
Made any modifications, equivalent replacements, and improvements etc., should be included in the claims in the present invention within the spirit and principle of invention
Protection scope within.
Claims (8)
1. a kind of fuse switch of pressure fixing, including stationary contact bracket (1) and moving contact support (2), the stationary contact
It is hinged on bracket (1) cartridge fuse (3), is provided with contact elastic slice (4) on the moving contact support (2), the cartridge fuse (3) is logical
It crosses the contact elastic slice (4) and the moving contact support (2) is closed, it is characterised in that: the stationary contact bracket (1) and movable contact
Bracket (2) is equipped with the retention mechanism (5) for fixing fuse (7), and retention mechanism (5) includes clamping screw (51), compresses bullet
Spring (52) and tabletting (53) for compressing fuse (7), the clamping screw (51) pass through tabletting (53) and be fixed on bracket (1,
2) on, the holddown spring (52) is socketed on clamping screw (51) and holds out against tabletting (53)；The moving contact support (2) and molten
It is additionally provided with torsional spring (6) between silk (7) pipe (3), the torsional spring (6) is to cartridge fuse (3) elastic effect.
2. a kind of fuse switch of pressure fixing according to claim 1, it is characterised in that: the torsional spring (6) turns
Dynamic to be fixed on cartridge fuse (3), torsional spring arm is pressed on moving contact support (2).
3. a kind of fuse switch of pressure fixing according to claim 1, it is characterised in that: the retention mechanism
It (5) is to be threadedly coupled with the connection type of stationary contact bracket (1), moving contact support (2).
4. a kind of fuse switch of pressure fixing according to claim 1, it is characterised in that: the holddown spring
(52) internal diameter is slightly larger than clamping screw (51) outer diameter.
5. a kind of fuse switch of pressure fixing according to claim 1, it is characterised in that: the clamping screw
It (51) is flat head bolt.
6. a kind of fuse switch of pressure fixing according to claim 1, it is characterised in that: the tabletting (53)
With a thickness of 2-5mm.
7. a kind of fuse switch of pressure fixing according to claim 6, it is characterised in that: the tabletting (53)
Quantity is one or two.
8. a kind of fuse switch of pressure fixing according to claim 7, it is characterised in that: the tabletting (53)
Material is red copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810873165.8A CN109037004A (en) | 2018-08-02 | 2018-08-02 | A kind of fuse switch of pressure fixing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810873165.8A CN109037004A (en) | 2018-08-02 | 2018-08-02 | A kind of fuse switch of pressure fixing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109037004A true CN109037004A (en) | 2018-12-18 |
Family
ID=64647955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810873165.8A Pending CN109037004A (en) | 2018-08-02 | 2018-08-02 | A kind of fuse switch of pressure fixing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109037004A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115240965A (en) * | 2022-08-04 | 2022-10-25 | 国网安徽省电力有限公司滁州市城郊供电公司 | Fuse is used in transformer protection |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105118751A (en) * | 2015-08-17 | 2015-12-02 | 国网山东省电力公司菏泽供电公司 | A 35kV outdoor type PT fuse |
| CN105957784A (en) * | 2016-07-20 | 2016-09-21 | 王忠阳 | Fusing mechanism and split type drop fuse |
| CN205692791U (en) * | 2016-06-13 | 2016-11-16 | 国网江西省电力公司莲花县供电分公司 | Falling type switch |
| CN208433362U (en) * | 2018-08-02 | 2019-01-25 | 广东电网有限责任公司 | A kind of fuse switch of pressure fixing |
-
2018
- 2018-08-02 CN CN201810873165.8A patent/CN109037004A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105118751A (en) * | 2015-08-17 | 2015-12-02 | 国网山东省电力公司菏泽供电公司 | A 35kV outdoor type PT fuse |
| CN205692791U (en) * | 2016-06-13 | 2016-11-16 | 国网江西省电力公司莲花县供电分公司 | Falling type switch |
| CN105957784A (en) * | 2016-07-20 | 2016-09-21 | 王忠阳 | Fusing mechanism and split type drop fuse |
| CN208433362U (en) * | 2018-08-02 | 2019-01-25 | 广东电网有限责任公司 | A kind of fuse switch of pressure fixing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115240965A (en) * | 2022-08-04 | 2022-10-25 | 国网安徽省电力有限公司滁州市城郊供电公司 | Fuse is used in transformer protection |
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| PB01 | Publication | ||
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