CN106972472A - A kind of current limiter - Google Patents
A kind of current limiter Download PDFInfo
- Publication number
- CN106972472A CN106972472A CN201710369575.4A CN201710369575A CN106972472A CN 106972472 A CN106972472 A CN 106972472A CN 201710369575 A CN201710369575 A CN 201710369575A CN 106972472 A CN106972472 A CN 106972472A
- Authority
- CN
- China
- Prior art keywords
- insulation
- resistor disc
- base station
- insulation mandrel
- mandrel
- 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
Classifications
-
- 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
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses a kind of current limiter, including insulation mandrel, base station, resistor disc and aluminium head, vertical through hole is provided with base station, insulation mandrel end passes through the through hole of base station, the end of insulation mandrel is provided with annular groove, and the groove of resistor disc can be placed by being provided with around through hole, and the head end of insulation mandrel is provided with aluminium head, insulating coating is cased with outside insulation mandrel, insulation ball is provided between insulating coating and resistor disc.The beneficial effects of the invention are as follows：It is simple in construction, it is easily installed, it is safe and convenient to use, by the way of aluminium head, insulation mandrel, resistor disc and insulation ball are engaged, when short circuit current flow occurs in circuit, due to the effect of resistor disc and insulation ball, power frequency continued flow is prevented to produce, avoid insulated conductor to be blown, it is ensured that the security of household electrical appliance, extend the service life of electrical equipment.
Description
Technical field
The present invention relates to a kind of current limiter.
Background technology
During Power System Shortcuts, because short circuit current flow is very big, equipment temperature rise is raised rapidly, while big electric power is produced,
These can all cause the damage of power equipment.In order to lower the harm that short circuit is brought, short circuit current flow is limited by certain method
System protects power system device under prospective short circuit current.Existing current limiter is generally by fault detection unit, breaker
And current-limiting impedance composition, wherein breaker is in parallel with current-limiting impedance, under power system normal operation, disconnected in current limiter
Road device is in closure state, because breaker has relatively low contact resistance, therefore, and rated current passes through breaker, current limliting resistance
Anti- almost no electric current.When short circuit occurs for power system, detection unit detects failure, and breaker disconnects, and produces electric arc, electricity
Stream flows into the current-limiting impedance in parallel with breaker, and short circuit current flow is limited in the range of requirement, the short circuit current flow after current limliting by
Another breaker disjunction, so as to cut off failure.And existing current limiter is in use, current limit levels are very low, it is impossible to
Protect the safety of electrical equipment.
Therefore, to solve the above problems, special provide a kind of new technical scheme.
The content of the invention
The present invention provides a kind of current limiter.
The technical solution adopted by the present invention is：
Vertical through hole is provided with a kind of current limiter, including insulation mandrel, base station, resistor disc and aluminium head, the base station, it is described exhausted
Edge mandrel tip passes through the through hole of base station, and the end of the insulation mandrel is provided with annular groove, and described be provided with around through hole can
The groove of resistor disc is placed, the head end of the insulation mandrel, which is provided with outside aluminium head, the insulation mandrel, is cased with insulating coating, institute
State and insulation ball is provided between insulating coating and resistor disc.
Further, the trapezoidal structure of the base station.
Further, a segment distance is left between the resistor disc and insulation ball.
Further, it is threadedly coupled between the aluminium head and insulation mandrel.
Further, the quantity 5-10 pieces of the resistor disc.
The beneficial effects of the invention are as follows：It is simple in construction, be easily installed, it is safe and convenient to use, using aluminium head, insulation mandrel,
The mode that resistor disc and insulation ball are engaged, when short circuit current flow occurs in circuit, due to the effect of resistor disc and insulation ball, is prevented
Power frequency continued flow is produced, it is to avoid insulated conductor is blown, it is ensured that the securities of household electrical appliance, extends the service life of electrical equipment.
Brief description of the drawings
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the structural representation of the present invention.
Wherein：1st, insulation mandrel, 2, base station, 3, resistor disc, 4, aluminium head, 5, through hole, 6, annular groove, 7, insulating coating, 8, recessed
Groove, 9, insulation ball.
Embodiment
In order to deepen the understanding of the present invention, below in conjunction with embodiment and accompanying drawing, the invention will be further described, should
Embodiment is only used for explaining the present invention, does not constitute the restriction to protection scope of the present invention.
It is provided with a kind of current limiter as shown in Figure 1, including insulation mandrel 1, base station 2, resistor disc 3 and aluminium first 4, base station 2
Vertical through hole 5, the end of insulation mandrel 1 passes through the through hole 5 of base station 2, and the end of insulation mandrel 1 is provided with annular groove 6, in through hole 5
Around be provided with and can place the groove 8 of resistor disc 3, the head end of insulation mandrel 1, which is provided with outside aluminium first 4, insulation mandrel 1, to be cased with absolutely
Edge overcoat 7, is provided with insulation ball 9 between insulating coating 7 and resistor disc 3；
The trapezoidal structure of base station 2；
A segment distance, the quantity 5-10 pieces of resistor disc 3 are left between resistor disc 3 and insulation ball 9；
It is threadedly coupled between aluminium first 4 and insulation mandrel 1.
The beneficial effects of the invention are as follows：It is simple in construction, be easily installed, it is safe and convenient to use, using aluminium head, insulation mandrel,
The mode that resistor disc and insulation ball are engaged, when short circuit current flow occurs in circuit, due to the effect of resistor disc and insulation ball, is prevented
Power frequency continued flow is produced, it is to avoid insulated conductor is blown, it is ensured that the securities of household electrical appliance, extends the service life of electrical equipment.
The above described is only a preferred embodiment of the present invention, being not the limit for making any other form to the present invention
System, and any modification made according to technical spirit of the invention or equivalent variations, still fall within model claimed of the invention
Enclose.
Claims (5)
1. a kind of current limiter, it is characterised in that：Including insulation mandrel, base station, resistor disc and aluminium head, it is provided with the base station vertical
Through hole, the insulation mandrel end pass through base station through hole, the end of the insulation mandrel is provided with annular groove, described in through hole
Around be provided with and can place the groove of resistor disc, the head end of the insulation mandrel is provided with aluminium head, the insulation mandrel outer cover
There is insulating coating, insulation ball is provided between the insulating coating and resistor disc.
2. a kind of current limiter according to claim 1, it is characterised in that：The trapezoidal structure of base station.
3. a kind of current limiter according to claim 1, it is characterised in that：One section is left between the resistor disc and insulation ball
Distance.
4. a kind of current limiter according to claim 1, it is characterised in that：Screw thread connects between the aluminium head and insulation mandrel
Connect.
5. a kind of current limiter according to claim 1, it is characterised in that：The quantity 5-10 pieces of the resistor disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710369575.4A CN106972472A (en) | 2017-05-23 | 2017-05-23 | A kind of current limiter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710369575.4A CN106972472A (en) | 2017-05-23 | 2017-05-23 | A kind of current limiter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106972472A true CN106972472A (en) | 2017-07-21 |
Family
ID=59325729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710369575.4A Pending CN106972472A (en) | 2017-05-23 | 2017-05-23 | A kind of current limiter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106972472A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5021914A (en) * | 1988-07-13 | 1991-06-04 | Kabushiki Kaisha Toshiba | Superconducting switch and current limiter using such a switch |
| US5594613A (en) * | 1992-10-09 | 1997-01-14 | Cooper Industries, Inc. | Surge arrester having controlled multiple current paths |
| CN103367065A (en) * | 2012-04-05 | 2013-10-23 | 厦门赛尔特电子有限公司 | Current-limiting fuse with overcurrent and short circuit protection |
| CN106409443A (en) * | 2016-12-14 | 2017-02-15 | 国网上海市电力公司 | Insulator with lightning arrester and fault indicator |
| CN106409446A (en) * | 2016-01-25 | 2017-02-15 | 上海四量电子科技有限公司 | Built-in column type current limiter |
-
2017
- 2017-05-23 CN CN201710369575.4A patent/CN106972472A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5021914A (en) * | 1988-07-13 | 1991-06-04 | Kabushiki Kaisha Toshiba | Superconducting switch and current limiter using such a switch |
| US5594613A (en) * | 1992-10-09 | 1997-01-14 | Cooper Industries, Inc. | Surge arrester having controlled multiple current paths |
| CN103367065A (en) * | 2012-04-05 | 2013-10-23 | 厦门赛尔特电子有限公司 | Current-limiting fuse with overcurrent and short circuit protection |
| CN106409446A (en) * | 2016-01-25 | 2017-02-15 | 上海四量电子科技有限公司 | Built-in column type current limiter |
| CN106409443A (en) * | 2016-12-14 | 2017-02-15 | 国网上海市电力公司 | Insulator with lightning arrester and fault indicator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170721 |