CN205944021U - Drop -out switching device that no fuse can repeatedly be operated - Google Patents
Drop -out switching device that no fuse can repeatedly be operated Download PDFInfo
- Publication number
- CN205944021U CN205944021U CN201620890741.6U CN201620890741U CN205944021U CN 205944021 U CN205944021 U CN 205944021U CN 201620890741 U CN201620890741 U CN 201620890741U CN 205944021 U CN205944021 U CN 205944021U
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- Prior art keywords
- contact tube
- switch device
- type switch
- spring
- fuse
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Abstract
The utility model discloses a drop -out switching device that no fuse can repeatedly be operated, including insulating assemblies, go up coupling assembling, have that annular memory alloy touches that structure, inside be equipped with the conductive filament on lead magnetron and coupling assembling isotructure down. When switching device bore overcurrent, memory alloy can experience the rising of temperature and take place deformation for on the contact force that touches structure conductive jaw and lead magnetron reduce, make switching device cut -off rapidly, killing. The utility model discloses utilized shape memory alloy spring to take place the characteristic of deformation along with the temperature to cooperate in order to replace the fuse with the conductive filament, can realize repeated operation, avoided the danger of artificial change fuse, improved the security of switch maintenance work.
Description
Technical field
This utility model belongs to power switch construction applications, is related to the falling type switch dress that a kind of no fuse repeats operation
Put, be mainly used in 35kV and the distribution line and distribution transformer of following power system, play short circuit and overload protection
Effect.
Background technology
In the distribution line and distribution transformer of 35kV and following power system, fuse switch is modal one
Plant the switching device for short-circuit protection.Existing fuse switch is using the fusing of melt material self-heating, to disconnect
Circuit.After fuse switch fuse failure, need attendant to climb replacing fuse on shaft tower and could recover drop type
The normal function of fuse, its maintenance workload is big and has certain danger.
Therefore, it is necessary to design the falling type switch device that a kind of no fuse-wires structure repeats operation, and it is avoided that
Attendant climbs, and this case produces therefrom.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of no fuse and the drop type of repeatable operation is opened
Close device, it is avoided that attendant climbs, and can increase safety.
For solving above-mentioned technical problem, technical solution of the present utility model is：
A kind of no fuse repeats the falling type switch device of operation, including insulation assembly, upper coupling assembly, upper tactile knot
Structure, contact tube, lower tactile structure and lower coupling assembly, this upper and lower coupling assembly is respectively arranged at the top of described insulation assembly
And lower section；Main body that on this, tactile structure includes being arranged in described upper coupling assembly, at least two being arranged in this main body lead
The electric intermediate plate and hoop annular memorial alloy on this conductive clip；This contact tube includes outer layer insulation part, to be arranged on outer layer exhausted
Conducting ring above edge part and be arranged on conductive filament within outer layer insulation part, this conductive filament is electrically connected with conducting ring；Described
Conductive clip is clamped in outside this conducting ring in the presence of annular memorial alloy；This contact tube lower end is hinged on described lower connection
On assembly, described conductive filament is electrically connected with this lower coupling assembly.
Preferably, described annular memorial alloy is using the memory alloy spring of annular.
Preferably, it is provided with necking down groove outside described conductive clip, described annular memorial alloy is arranged on this contracting
In neck groove.
Preferably, it is provided with compression spring between described each conductive clip.
Preferably, described contact tube is provided with a link that contact tube can be operated.
Preferably, further include to touch structure, this lower tactile structure setting in described lower coupling assembly, described conduction
Pipe is hinged in this lower tactile structure, thus contact tube is hinged on indirectly in described lower coupling assembly, under described conductive filament and this
Tactile structure electrical connection；It is provided with the part that is flexible coupling between described contact tube and lower tactile structure, the one of this part that is flexible coupling
Terminate at contact tube rear end and electrically connect with described conductive filament, another terminate in described lower tactile structure.
Preferably, the described part that is flexible coupling is flexible coupling for Copper Foil or flexible cable.
Preferably, a dropout alligator clamp is set further, and this dropout alligator clamp includes housing, dropout spring and spring catch
Plate；This housing is arranged in described upper coupling assembly, is internally provided with opening towards the cavity volume of described contact tube；This dropout spring
And spring stop is arranged in this cavity volume, its two ends is connected with housing and spring stop respectively；This hull outside is additionally provided with through hole,
The conductive clip of described tactile structure is provided with chock, and this chock extend in described cavity volume from through hole and props up spring stop, will
Dropout spring and spring stop limit.
Preferably, described cavity volume inwall has twice groove, and accordingly, described spring plate washer is provided with slide block and is located at
In this groove.
Preferably, on described housing, setting can be enclosed within the guide plate playing the guiding role outside described contact tube further.
After such scheme, due to this utility model be instead of with the style characteristic of annular memorial alloy and conductive filament molten
Silk, when switching device is in normal operating conditions, annular memorial alloy is in contraction state, the conductive clip of upper tactile structure with
Certain contact force is kept between contact tube；When switching device carries overcurrent or short circuit current, switching device will be sent out
Heat, when heating is to design temperature, annular memorial alloy deforms upon suddenly expansion, and now memorial alloy binding force reduces, and
In the presence of compression spring, the conductive clip of upper tactile structure is opened and is departed from contact tube, and upper tactile structural conductive intermediate plate opens up into
Dropout spring works are also triggered so that contact tube is rapidly separated with conductive clip, thus cutting off circuit when to a certain degree；Switch
After device disconnecting circuit, device is gradually restored to room temperature, and now memorial alloy is again restored to original contraction state, and fault is arranged
After removing, attendant only need to be pushed contact tube in conductive clip using stock and can recover switching device normal operating conditions,
Realize being changed without the repeatable operation that fuse is not required to climb.This utility model make use of marmem to deform upon with temperature
Characteristic and common conductive copper wire to replace fuse, be capable of repetitive operation, it is to avoid the danger of artificial replacing fuse, improve
The safety of switch maintenance work.
Brief description
Fig. 1 is the structural representation of falling type switch device described in the utility model；
Fig. 2 is the schematic diagram of tactile structure described in the utility model；
Fig. 3 is the schematic diagram of contact tube described in the utility model；
Fig. 4 is the cut-away diagram of contact tube described in the utility model；
Fig. 5 is the side view of dropout alligator clamp described in the utility model；
Fig. 6 is the A-A sectional view of Fig. 5.
Specific embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Disclosed in this utility model is the falling type switch device that a kind of no fuse repeats operation, as Fig. 1 to Fig. 6 institute
Show, be preferred embodiment of the present utility model.Described falling type switch device include insulation assembly 1, upper coupling assembly 2, on
Tactile structure 3, contact tube 4, lower tactile structure 5 and lower coupling assembly 6, can further include dropout alligator clamp 7.Wherein：
Described upper coupling assembly 2 and lower coupling assembly 6 are respectively arranged above and below described insulation assembly 1.
Described upper tactile structure 3 is arranged in described upper coupling assembly 2, as shown in Fig. 2 tactile structure 3 mainly includes on this
31, two conductive clips 32 of main body and annular memorial alloy 33, this main body 31 is arranged in described upper coupling assembly 2, two
Conductive clip 32 is arranged in main body 31, and annular memorial alloy 33 binds round outside two conductive clips 32.In order to increase tightening force,
Described annular memorial alloy 33 can be using the memory alloy spring of annular.In addition, note is installed in described conductive clip 32 outside
Recall and at alloy position, necking down groove 34 can be set, this annular memorial alloy 33 is arranged in this necking down groove 34.In order that leading
Electric intermediate plate 32 can smoothly open, and can arrange compression spring 35 between two conductive clips 32.
As shown in Figure 3,4, described contact tube 4 includes outer layer insulation part 41, is arranged on leading of outer layer insulation part 41 top
Electric ring 42 and be arranged on conductive filament 43 within outer layer insulation part 41, this conductive filament 43 is electrically connected with conducting ring 42.On above-mentioned
The conductive clip 32 of tactile structure 3 is clamped in outside this conducting ring 42 in the presence of annular memorial alloy 33.Further, this is led
One link 44 can also be arranged on fulgurite 4, in order to by stock（In figure is not shown）Contact tube 4 is operated.
Described contact tube 4 lower end is hinged in described lower tactile structure 5, and this lower tactile structure 5 is arranged on described lower connection group
On part 6, described conductive filament 43 is electrically connected with this lower tactile structure 5.Lower tactile structure 5 can certainly be not provided with, and directly by conduction
Pipe 4 is hinged in lower coupling assembly 6.In order to reduce contact resistance and reliable conductive between contact tube 4 and lower tactile structure 5, can
To design the part 8 that is flexible coupling further（As shown in Figure 3）, this part 8 that is flexible coupling can be flexible coupling for Copper Foil and can also be
Flexible cable, one is terminated at contact tube 4 rear end and is electrically connected with conductive filament 43, another terminates at lower tactile structure 5（Or directly it is connected on
Lower coupling assembly 6）On, to reduce the temperature rise of contact tube 4 and lower tactile structure 5 contact site.
The falling type switch device described in the utility model difference maximum with existing fuse switch is to make use of ring
The style characteristic of shape memorial alloy 33 and conductive filament 43 instead of fuse it is achieved that no fuse repeats the function of cut-offfing.
When no fuse falling type switch device is in normal operating conditions, annular memorial alloy 33 is in receipts to this utility model
Contracting state simultaneously has larger binding force so that compression spring 35 is in compressive state, now the upper conductive clip 32 touching structure 3
And the conducting ring 42 of contact tube 4 between, there is certain contact force, ensure that it reliably contacts.
When no fuse falling type switch device described in the utility model carries overcurrent or short circuit current, switching device is whole
Temperature will raise, and because annular memorial alloy 33 installation position is necking down structure, its conductor cross sectional area is less, and its heating is existing
As will be further obvious.Therefore annular memorial alloy 33 can experience the rising of temperature thus deforming upon expansion, leads to it
Binding force reduces.Reduced and trailed by the compression force that this compression spring 35 is subject to, make the conductive clip 32 of tactile structure 3
Reduce with the contact force of contact tube 4 so that contact tube 4 is separated with conductive clip 32 rapidly and falls, thus cutting off circuit.
After switching device disconnecting circuit, unit temp will be reduced to room temperature, meanwhile annular memorial alloy 33 energy
Enough reduction with temperature is again restored to original contraction state.After overload or short trouble exclusion, attendant only needs profit
Catch on link 44 with stock to push contact tube 4 in conductive clip 32, so that switching device returns to normal operating conditions, energy
Enough realizations are repeatable to be operated.
Further, this utility model can also arrange a dropout alligator clamp 7.Coordinate as shown in Figure 5,6, this dropout bullet
Spring folder 7 is main to include housing 71, dropout spring 72 and spring stop 73.This housing 71 is arranged in described upper coupling assembly 2,
It is internally provided with the cavity volume 74 towards contact tube 4 for the opening；This dropout spring 72 and spring stop 73 are arranged in this cavity volume 74, its
Two ends are connected with housing 71 and spring stop 73 respectively.It is additionally provided with through hole 75, the conduction of described tactile structure 3 outside this housing 71
Intermediate plate 32 is provided with chock 36, and this chock 36 can extend in described cavity volume 74 from through hole 75 and prop up spring stop 73, thus
Dropout spring 72 is limited with spring stop 73.Further, twice groove 76 can also be had in described cavity volume 74 inwall,
Accordingly, spring plate washer 73 is provided with slide block and is located in this groove 76, in order to limit spring baffle plate 73.On described housing 71 also
Can arrange further and can be enclosed within the guide plate 77 playing the guiding role outside described contact tube 4.
After being provided with this dropout alligator clamp 7, when no fuse falling type switch device is in normal operating conditions, described
The upper chock 36 touching structure 3 will be from the housing 71 side wall of dropout alligator clamp 7 under the enclasping force effect of annular memorial alloy 33
On through hole 75 extend into inside described cavity volume 74, thus limiting dropout spring 72 and the position of spring stop 73, make dropout
Spring 72 is in compressive state.When no fuse falling type switch device carries overcurrent or short circuit current, annular memorial alloy
33 sensible heat deformation expand, and after leading to its binding force to reduce, so that conductive clip 32 and the contact force of contact tube 4 is reduced；Meanwhile
In the presence of compression spring 35, when conductive clip 32 opens to a certain extent, the chock 36 of upper tactile structure 3 will be disengaged from bullet
Spring baffle plate 73, thus trigger dropout spring 72 working, spring stop 73 promotes contact tube 4 so that contact tube 4 is rapid and conductive clamp
Piece 32 separates, thus cutting off circuit.After switching device is lowered the temperature and made annular memorial alloy 33 reinstatement state, on conductive clip 32
Chock 36 extend into inside housing cavity volume 74 from the housing through-hole 75 of dropout alligator clamp 7, make dropout spring 72 and spring stop
73 return to defined position, and switching device returns to normal operating conditions, are capable of repeatable operation.
The above, be only preferred embodiment of the present utility model, not technical scope of the present utility model is made
Any restriction, therefore the change in every case done according to claim of the present utility model and description or modification, all should belong to this practicality
Within the scope of new patent is covered.
Claims (10)
1. a kind of no fuse repeat operation falling type switch device it is characterised in that：Including insulation assembly（1）, upper connection
Assembly（2）, upper tactile structure（3）, contact tube（4）And lower coupling assembly（6）, this upper and lower coupling assembly（2、6）It is respectively arranged at
Described insulation assembly（1）Above and below；Tactile structure on this（3）Including being arranged on described upper coupling assembly（2）On main body
（31）, at least two conductive clips that are arranged in this main body（32）And annular memorial alloy on this conductive clip for the hoop
（33）；This contact tube（4）Including outer layer insulation part（41）, be arranged on conducting ring above outer layer insulation part（42）And be arranged on
Conductive filament within outer layer insulation part（43）, this conductive filament electrically connected with conducting ring；Described conductive clip（32）In annular memory
Alloy（33）In the presence of be clamped in this conducting ring（42）Outside；This contact tube（4）Lower end is hinged on described lower coupling assembly（6）
On, described conductive filament（43）Electrically connect with this lower coupling assembly.
2. a kind of no fuse according to claim 1 repeat operation falling type switch device it is characterised in that：Described
Annular memorial alloy（33）Using annular memory alloy spring.
3. a kind of no fuse according to claim 1 repeat operation falling type switch device it is characterised in that：Described
Conductive clip（32）Outside is provided with necking down groove（34）, described annular memorial alloy（33）It is arranged on this necking down groove
Interior.
4. a kind of no fuse according to claim 1 repeat operation falling type switch device it is characterised in that：Described
Each conductive clip（32）Between be provided with compression spring（35）.
5. a kind of no fuse according to claim 1 repeat operation falling type switch device it is characterised in that：Described
Contact tube（4）On be provided with a link that contact tube can be operated（44）.
6. a kind of no fuse according to claim 1 repeat operation falling type switch device it is characterised in that：Enter one
Step includes touching structure（5）, this lower tactile structure setting is in described lower coupling assembly（6）On, described contact tube（4）It is hinged on this
Tactile structure down（5）On, thus contact tube is hinged on indirectly in described lower coupling assembly, described conductive filament（43）With this lower tactile knot
Structure electrically connects；Described contact tube（4）With lower tactile structure（5）Between be provided with the part that is flexible coupling（8）, this part that is flexible coupling
An end be connected on contact tube rear end and with described conductive filament（43）Electrical connection, another terminates at described lower tactile structure（5）On.
7. a kind of no fuse according to claim 6 repeat operation falling type switch device it is characterised in that：Described
The part that is flexible coupling（8）It is flexible coupling for Copper Foil or flexible cable.
8. a kind of no fuse according to claim 1 repeat operation falling type switch device it is characterised in that：Enter one
Step one dropout alligator clamp of setting（7）, this dropout alligator clamp includes housing（71）, dropout spring（72）And spring stop（73）；
This housing（71）It is arranged on described upper coupling assembly（2）On, it is internally provided with opening towards described contact tube（4）Cavity volume
（74）；This dropout spring（72）And spring stop（73）It is arranged on this cavity volume（74）Interior, its two ends respectively with housing（71）And bullet
Spring baffle plate（73）Connect；This housing（71）Outside is additionally provided with through hole（75）, described tactile structure（3）Conductive clip（32）On set
There is chock（36）, this chock is from through hole（75）It extend into described cavity volume（74）Inside prop up spring stop（73）, by dropout spring with
Spring stop limits.
9. a kind of no fuse according to claim 8 repeat operation falling type switch device it is characterised in that：Described
Cavity volume（74）Inwall has twice groove（76）, accordingly, described spring stop（73）It is provided with slide block and be located at this groove
（76）Interior.
10. a kind of no fuse according to claim 8 or claim 9 repeat operation falling type switch device it is characterised in that：
Described housing（71）On further setting can be enclosed within described contact tube（4）The guide plate that outside play the guiding role（77）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620890741.6U CN205944021U (en) | 2016-08-17 | 2016-08-17 | Drop -out switching device that no fuse can repeatedly be operated |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620890741.6U CN205944021U (en) | 2016-08-17 | 2016-08-17 | Drop -out switching device that no fuse can repeatedly be operated |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205944021U true CN205944021U (en) | 2017-02-08 |
Family
ID=57917946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620890741.6U Withdrawn - After Issue CN205944021U (en) | 2016-08-17 | 2016-08-17 | Drop -out switching device that no fuse can repeatedly be operated |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205944021U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106057605A (en) * | 2016-08-17 | 2016-10-26 | 厦门理工学院 | No-fuse repeatable operation drop-type switching device |
| CN112420465A (en) * | 2020-11-02 | 2021-02-26 | 荆门麦隆珂机器人科技有限公司 | Drop-out fuse for electric power construction |
| CN112420465B (en) * | 2020-11-02 | 2024-05-03 | 深圳市万高宝电力器材有限公司 | Drop-out fuse for power construction |
-
2016
- 2016-08-17 CN CN201620890741.6U patent/CN205944021U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106057605A (en) * | 2016-08-17 | 2016-10-26 | 厦门理工学院 | No-fuse repeatable operation drop-type switching device |
| CN106057605B (en) * | 2016-08-17 | 2019-05-28 | 厦门理工学院 | A kind of falling type switch device of the repeatable operation of no fuse |
| CN112420465A (en) * | 2020-11-02 | 2021-02-26 | 荆门麦隆珂机器人科技有限公司 | Drop-out fuse for electric power construction |
| CN112420465B (en) * | 2020-11-02 | 2024-05-03 | 深圳市万高宝电力器材有限公司 | Drop-out fuse for power construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170208 Effective date of abandoning: 20190528 |