CN205901293U - Over -voltage protector - Google Patents
Over -voltage protector Download PDFInfo
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- CN205901293U CN205901293U CN201620911568.3U CN201620911568U CN205901293U CN 205901293 U CN205901293 U CN 205901293U CN 201620911568 U CN201620911568 U CN 201620911568U CN 205901293 U CN205901293 U CN 205901293U
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- electrode
- overvoltage protection
- protection device
- discharge tube
- insulation crust
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Abstract
The embodiment of the utility model provides an over -voltage protector, including the over -voltage protector main part, the over -voltage protector main part includes first electrode, second electrode, puts magnetron and overheated overcurrent protect device. The one end of putting magnetron is close to the first electrode just passes through overheated overcurrent protect device with first electrode electric connection, the other end of putting magnetron is close to the second electrode and with second electrode electric connection. Over -voltage protector is through subtracting the weak point the circuit route of over -voltage protector main part, the heavy current passes through during the circuit, the pressure drop is less, and the reliability will strengthen, the guarantee of very big degree the application the voltage transformer secondary winding's of over -voltage protector's transformer substation safety.
Description
Technical field
This utility model embodiment provides a kind of electric protective device, in particular to a kind of overvoltage protection device.
Background technology
The atmospheric over-voltage that thunder and lightning causes will cause serious harm to the building of electrical equipment and transformer station.Therefore,
It is necessary to take anti-overvoltage measure effectively in transformer station and high and low pressure transmission line of electricity, to ensure the safety of electrical equipment.
Operating experience shows, the lightning protection measures (outside lightning-arrest) employed in current electric substation are reliable.But, with modern science
The development of technology, the increase of power network capacity, the raising of electric pressure, the demand of automation level, more and more micro-
Electronic equipment is widely used in transformer station, and the microelectronic device that it is relied on is sent out because of the accident damaged by lightning impulse
Raw probability significantly rises, and causes economic loss difficult to the appraisal.So, for developing, power transformation low-voltage automation
System takes lightning protection overvoltage protection measure effectively, safeguards system normal reliable run it is ensured that the safety of power supply, voltage
The protection of transformer Secondary Winding is particularly important.In prior art, the reliability of traditional overvoltage protection device relatively low it is impossible to
The safety of the secondary windings of PT of protection transformer station well.
Utility model content
In view of this, the purpose of this utility model embodiment is, provides a kind of reliability higher overvoltage protection device
To solve the above problems.
The overvoltage protection device that this utility model embodiment provides, including overvoltage protection device main body, described overvoltage is protected
Shield device main body includes first electrode, second electrode, discharge tube and overheated overcurrent protective device；
Described overheated overcurrent protective device and described first near described first electrode and is passed through in one end of described discharge tube
Electrode is electrically connected with, and the other end of described discharge tube is electrically connected near described second electrode and with described second electrode.
Further, described first electrode and second electrode are set up in parallel, and are located at the same orientation of described discharge tube, institute
The length direction stating discharge tube is vertical with the length direction of described first electrode and second electrode.
Further, described overvoltage protection device main body also includes insulation crust, and the diapire of described insulation crust is provided with
First electrode through hole, second electrode through hole and protection jogger hole；
Described discharge tube and overheated overcurrent protective device are arranged at the inside of described insulation crust, and described first electrode passes through
Described first electrode through hole extends to the outside of described insulation crust, and described second electrode passes through described second electrode through hole to extend
Outside to described insulation crust.
Further, described overheated overcurrent protective device includes metal connecting piece, and described metal connecting piece is electrically connected at
Between described first electrode and discharge tube；
Described metal connecting piece is provided with overcurrent protection fused area and overtemperature protection spot area, described overtemperature protection weldering
Point region is welded in described discharge tube by solder.
Further, described overheated overcurrent protective device also includes position control device, and described position control device includes being connected to institute
State the housing of metal connecting piece, and the elastomer being in compressive state；
The diapire of described housing is provided with push-rod hole；
Described elastomer is arranged at the inside of described housing, one end of described elastomer contacted with the roof of described housing,
The other end is located at the position of described push-rod hole and is contacted with the diapire of described insulation crust.
Further, described overvoltage protection device also includes Indication of Losing Efficacy labelling, and described Indication of Losing Efficacy labelling is arranged at institute
Between the roof stating housing and the roof and the roof of described insulation crust that are located at described housing, the roof of described insulation crust sets
It is equipped with visual windows, described Indication of Losing Efficacy is marked at the position positioned at described visual windows for the orthographic projection of the roof of described insulation crust
Put place.
Further, described overvoltage protection device also includes being provided with the bottom of the first binding post and the second binding post
Seat, described base is additionally provided with first interface and second interface, and described first binding post is electrically connected with described first interface,
Described second binding post is electrically connected with described second interface；
Described overvoltage protection device main body is arranged at described base, and described first electrode is electrically connected at described first and connects
Mouthful, described second electrode is electrically connected at described second interface.
Further, described base is additionally provided with alarming device interface, and is electrically connected with described alarming device interface
Microswitch push-button hole；
Described overvoltage protection device also includes push rod, and described push rod is arranged at the inside of described housing and is connected to described bullet
Gonosome, one end of described push rod is contacted with the roof of described housing, the other end passes through described push-rod hole and protection jogger hole prolongs
Extend the outside of described insulation crust and be electrically connected at described microswitch push-button hole.
Further, described overvoltage protection device also includes anti-error code device.
Further, described anti-error code device includes addressable part and the Gray code part that can be connected a pair,
Described addressable part and Gray code part are respectively arranged at described overvoltage protection device main body and base.
The overvoltage protection device that this utility model embodiment provides, by shortening the circuit of described overvoltage protection device main body
Path, when high current passes through described circuit, pressure drop is less, and reliability will strengthen, the guarantee of high degree application described mistake
The safety of the secondary windings of PT central point of the transformer station of voltage protector.
Brief description
In order to be illustrated more clearly that the technical scheme of this utility model embodiment, below will be to use required in embodiment
Accompanying drawing be briefly described.It should be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should be by
Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, also may be used
To obtain other related accompanying drawings according to these accompanying drawings.
A kind of structure chart of overvoltage protection device that Fig. 1 provides for this utility model embodiment.
A kind of partial internal structure figure of overvoltage protection device main body that Fig. 2 provides for this utility model embodiment.
A kind of structure chart of insulation crust that Fig. 3 provides for this utility model embodiment.
Fig. 4 is a kind of structure chart at another visual angle of insulation crust shown in Fig. 3.
The installation diagram of a kind of overheated overcurrent protective device that Fig. 5 provides for this utility model embodiment.
A kind of cut-away view of base that Fig. 6 provides for this utility model embodiment.
A kind of installation diagram of overvoltage protection device that Fig. 7 provides for this utility model embodiment.
The corresponding title of part reference is as follows:
100- overvoltage protection device main body, 110- first electrode, 120- second electrode, 130- discharge tube, the overheated mistake of 140-
Stream protection device, 141- metal connecting piece, 1411- overcurrent protection fused area, 1412- overtemperature protection spot area, 142- is controlled
Position device, 1421- housing, 14211- push-rod hole, 1422- elastomer, 150- insulation crust, 151- first electrode through hole,
152- second electrode through hole, 153- protects jogger hole, 154- visual windows；
200- base, 210- first binding post, 220- second binding post, 230- first interface, 240- second interface,
250- alarming device interface, 260- microswitch push-button hole；
300- Indication of Losing Efficacy labelling；
400- push rod；
The anti-error code device of 500-, 510- addressable part, 520- Gray code part.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe.Obviously, described embodiment is only a part of embodiment of this utility model, rather than whole
Embodiment.The assembly of this utility model embodiment generally described and illustrated in accompanying drawing herein can be with various different configurations
To arrange and to design.Therefore, below the detailed description of the embodiment of the present utility model providing in the accompanying drawings is not intended to limit
The claimed scope of the present utility model of system, but it is merely representative of selected embodiment of the present utility model.New based on this practicality
The embodiment of type, the every other embodiment that those skilled in the art are obtained on the premise of not making creative work,
Broadly fall into the scope of this utility model protection.
It should also be noted that similar label and letter expression similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then do not need it to be defined further and explains in subsequent accompanying drawing.
Refer to Fig. 1, this utility model embodiment provides a kind of overvoltage protection device, including overvoltage protection device main body
100.Alternatively, described overvoltage protection device also includes base 200.When described overvoltage protection device includes described base 200,
Described overvoltage protection device main body 100 is arranged at described base 200.
Refer to Fig. 2, in the present embodiment, described overvoltage protection device main body 100 includes first electrode 110, second electrode
120th, discharge tube 130 and overheated overcurrent protective device 140.One end of described discharge tube 130 is near described first electrode 110 and logical
Cross described overheated overcurrent protective device 140 to be electrically connected with described first electrode 110, the other end of described discharge tube 130 is close
Described second electrode 120 and being electrically connected with described second electrode 120.
Alternatively, described discharge tube 130 is gas-discharge tube.It is very big that gas-discharge tube has an insulation resistance, parasitic capacitance
The superior functions such as very little.
By above-mentioned setting, the height reduction of described overvoltage protection device main body 100 is so that described overvoltage protection device master
The circuit paths of body 100 shorten, and shorten to the path of second electrode 120 from described first electrode 110, thus enhancing this reality
The reliability of the overvoltage protection device of example offer is provided.
Alternatively, described first electrode 110 and second electrode 120 are set up in parallel, and are located at the same of described discharge tube 130
Orientation, the length direction of described discharge tube 130 is vertical with the length direction of described first electrode 110 and second electrode 120.
It should be noted that described be set up in parallel it is to be understood that the length direction of described first electrode 110 is parallel to institute
State the length direction of second electrode 120.Additionally, so that the structure setting of described overvoltage protection device main body 100 is more closed
Reason, volume is more compact, and alternatively, the diapire of described first electrode 110 is located at same water with the diapire of described second electrode 120
Plane.
Please refer to Fig. 3, Fig. 4, alternatively, described overvoltage protection device main body 100 also includes insulation crust 150, institute
The diapire stating insulation crust 150 is provided with first electrode through hole 151, second electrode through hole 152 and protection jogger hole 153, described
The roof of insulation crust 150 is provided with visual windows 154.
Described discharge tube 130 and overheated overcurrent protective device 140 are arranged at the inside of described insulation crust 150, and described
One electrode 110 extends to the outside of described insulation crust 150 through described first electrode through hole 151, and described second electrode 120 is worn
Cross the outside that described second electrode through hole 152 extends to described insulation crust 150.
Refer to Fig. 5, alternatively, described overheated overcurrent protective device 140 includes metal connecting piece 141, and described metal is even
Fitting 141 is electrically connected between described first electrode 110 and discharge tube 130.Described metal connecting piece 141 is provided with excessively stream and protects
Shield fused area 1411 and overtemperature protection spot area 1412, described overtemperature protection spot area 1412 is welded by solder
In described discharge tube 130.
Alternatively, described overcurrent protection fused area 1411 is a part for described metal connecting piece 141 reduced cross-sectional area.
Described overcurrent protection fused area 1411 is less due to sectional area, so resistance is larger.It should be noted that described overcurrent protection
Fused area 1411 can also realize the increase of resistance by other means, for example, in the part area of described metal connecting piece 141
Domain arranges multiple through holes, to form overcurrent protection fused area 1411.
By above-mentioned setting, when the circuit of described overvoltage protection device main body 100 occurs more than the surge of a certain current value
During electric current, described overcurrent protection fused area 1411 fuses because electric current is excessive, thus realizing protecting.As can be seen here, described
The setting purpose of overcurrent protection fused area 1411 is, realizes the high current tripping function of described overvoltage protection device, prevents
Because abnormal swell electric current causes described discharge tube 130 to damage because of short circuit.
When discharge tube 130 heating temp reaches a certain temperature, overtemperature protection spot area 1412 and described discharge tube 130
Fusing.As can be seen here, the setting purpose of described overcurrent protection fused area 1411 is, realizes the work of described overvoltage protection device
Frequency electrical current heat tripping function, to prevent described discharge tube 130 from causing short circuit to damage because overheated.
In order to strengthen high current tripping function and the power current of the overvoltage protection device described in this utility model embodiment
The reliability of heat de- work(button energy, described overheated overcurrent protective device 140 can also include position control device 142, described position control device
142 include being connected to the housing 1421 of described metal connecting piece 141, and the elastomer 1422 being in compressive state.This enforcement
In example, described metal connecting piece 141 is connected in described housing 1421, and described elastomer 1422 is spring.
The diapire of described housing 1421 is provided with push-rod hole 14211.Described elastomer 1422 is arranged at described housing
1421 inside, one end of described elastomer 1422 is contacted with the roof of described housing 1421, the other end is located at described push rod and leads to
Contact at the position in hole 14211 and with the diapire of described insulation crust 150.
By above-mentioned setting, when described overcurrent protection fused area 1411 fuses or described puts because electric current is excessive
Fulgurite 130 heating temp reaches a certain temperature, when overtemperature protection spot area 1412 and described discharge tube 130 fusing, in compression
The driving force of elastomer 1422 in the presence of described housing 1421 mobile, so that the portion being connected on described housing 1421
Metal connecting piece 141 is divided to be rapidly separated with described discharge tube 130.As can be seen here, described position control device 142 be arranged on very great Cheng
The susceptiveness of unit protection device is enhanced on degree, that is, enhances the reliability of described device Failure Alarm device.
Refer to Fig. 6, the base 200 described in the present embodiment is provided with the first binding post 210 and the second binding post
220.Described base 200 is additionally provided with first interface 230 and second interface 240, described first binding post 210 and described first
Interface 230 is electrically connected with, and described second binding post 220 and described second interface 240 are electrically connected with.
Overvoltage protection device described in the present embodiment, by by described first electrode 110 insert described first interface 230 and
It is electrically connected at described first interface 230, described second electrode 120 is inserted described second interface 240 and is electrically connected at described
Second interface 240, and described overvoltage protection device main body 100 is installed on described base 200.
Alternatively, described base 200 is additionally provided with alarming device interface 250, and electric with described alarming device interface 250
Property connect microswitch push-button hole 260.
Refer to Fig. 7, alternatively, described overvoltage protection device also includes Indication of Losing Efficacy labelling 300, described Indication of Losing Efficacy mark
Note 300 is arranged at the roof of described housing 1421 and is located at the roof of described housing 1421 and the roof of described insulation crust 150
Between and the orthographic projection of the roof in described insulation crust 150 for the described Indication of Losing Efficacy labelling 300 is located at described visual windows 154
At position.Can judge that can described voltage protector work on by the state of described Indication of Losing Efficacy labelling 300.
In the present embodiment, described overvoltage protection device also includes push rod 400, and described push rod 400 is arranged at described housing
1421 inside and be connected to described elastomer 1422, one end of described push rod 400 contacted with the roof of described housing 1421, another
One end passes through described push-rod hole 14211 and protection jogger hole 153 to extend to outside and the electric connection of described insulation crust 150
In described microswitch push-button hole 260.It should be noted that in the present embodiment, the roof of described housing 1421 also offered
Hole, one end that described push rod 400 is contacted with the roof of described housing 1421 can be by described via from described housing 1421
Pass.
By above-mentioned setting, after described metal connecting piece 141 departs from from described discharge tube 130, described push rod 400 is in institute
State upper under the indirect drive of elastomer 1422 shifting, away from described microswitch push-button hole 260.Now, it is connected to described dress of reporting to the police
The alarm putting interface 250 sounds the alarm.
Alternatively, overvoltage protection device also includes anti-error code device 500.Described anti-error code device 500 includes a pair
The addressable part 510 that can be connected and Gray code part 520.In the present embodiment, described addressable part 510 and Gray code portion
Part 520 is respectively arranged at described overvoltage protection device main body 100 and base 200.Can be had using described anti-error code device 500
The user that prevents of effect misses the product of different model similar for outward appearance or purposes in line attachment.
In sum, the overvoltage protection device that this utility model embodiment provides, by shortening described overvoltage protection device
The circuit paths of main body 100, when high current passes through described circuit, pressure drop is less, and reliability will strengthen, the guarantee of high degree
The safety of the secondary windings of PT of transformer station of the described overvoltage protection device of application.
In addition it is also necessary to explanation in description of the present utility model, unless otherwise clearly defined and limited, term " sets
Put ", should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or integratedly " installation ", " connection "
Connect.Can be to be mechanically connected or electrically connect.Can be to be joined directly together it is also possible to be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning in this utility model for the language.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for this
For the technical staff in field, this utility model can have various modifications and variations.All of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvement made etc., should be included within protection domain of the present utility model.
Claims (10)
1. a kind of overvoltage protection device is it is characterised in that include overvoltage protection device main body, described overvoltage protection device main body bag
Include first electrode, second electrode, discharge tube and overheated overcurrent protective device；
One end of described discharge tube is near described first electrode and by described overheated overcurrent protective device and described first electrode
It is electrically connected with, the other end of described discharge tube is electrically connected near described second electrode and with described second electrode.
2. overvoltage protection device according to claim 1 is it is characterised in that described first electrode and second electrode set side by side
Put, and be located at the same orientation of described discharge tube, the length direction of described discharge tube and described first electrode and second electrode
Length direction is vertical.
3. overvoltage protection device according to claim 2 is it is characterised in that described overvoltage protection device main body also includes absolutely
Edge shell, the diapire of described insulation crust is provided with first electrode through hole, second electrode through hole and protection jogger hole；
Described discharge tube and overheated overcurrent protective device are arranged at the inside of described insulation crust, and described first electrode passes through described
First electrode through hole extends to the outside of described insulation crust, and described second electrode extends to institute through described second electrode through hole
State the outside of insulation crust.
4. overvoltage protection device according to claim 3 is it is characterised in that described overheated overcurrent protective device includes metal
Connector, described metal connecting piece is electrically connected between described first electrode and discharge tube；
Described metal connecting piece is provided with overcurrent protection fused area and overtemperature protection spot area, described overtemperature protection solder joint area
Domain is welded in described discharge tube by solder.
5. overvoltage protection device according to claim 4 is it is characterised in that described overheated overcurrent protective device also includes controlling
Position device, described position control device includes being connected to the housing of described metal connecting piece, and the elastomer being in compressive state；
The diapire of described housing is provided with push-rod hole；
Described elastomer is arranged at the inside of described housing, and one end of described elastomer contacted with the roof of described housing, another
End is located at the position of described push-rod hole and is contacted with the diapire of described insulation crust.
6. overvoltage protection device according to claim 5 is it is characterised in that described overvoltage protection device also includes inefficacy refers to
Indicating is remembered, described Indication of Losing Efficacy labelling is arranged at the roof of described housing and is located at the roof of described housing and described insulation crust
Roof between, the roof of described insulation crust is provided with visual windows, and described Indication of Losing Efficacy is marked at described insulation crust
The orthographic projection of roof is located at the position of described visual windows.
7. overvoltage protection device according to claim 5 is it is characterised in that described overvoltage protection device also includes being provided with
First binding post and the base of the second binding post, described base is additionally provided with first interface and second interface, and described first
Binding post is electrically connected with described first interface, and described second binding post is electrically connected with described second interface；
Described overvoltage protection device main body is arranged at described base, and described first electrode is electrically connected at described first interface,
Described second electrode is electrically connected at described second interface.
8. overvoltage protection device according to claim 7 is it is characterised in that described base is additionally provided with alarm device connects
Mouthful, and the microswitch push-button hole being electrically connected with described alarming device interface；
Described overvoltage protection device also includes push rod, and described push rod is arranged at the inside of described housing and is connected to described elasticity
Body, one end of described push rod is contacted with the roof of described housing, the other end passes through described push-rod hole and protection jogger hole extends
To the outside of described insulation crust and be electrically connected at described microswitch push-button hole.
9. overvoltage protection device according to claim 7 is it is characterised in that described overvoltage protection device also includes anti-error volume
Code device.
10. overvoltage protection device according to claim 9 is it is characterised in that described anti-error code device includes a pair of energy
The addressable part being enough connected and Gray code part, described addressable part and Gray code part are respectively arranged at described overvoltage
Protector main body and base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620911568.3U CN205901293U (en) | 2016-08-19 | 2016-08-19 | Over -voltage protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620911568.3U CN205901293U (en) | 2016-08-19 | 2016-08-19 | Over -voltage protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205901293U true CN205901293U (en) | 2017-01-18 |
Family
ID=57779641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620911568.3U Active CN205901293U (en) | 2016-08-19 | 2016-08-19 | Over -voltage protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205901293U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602536A (en) * | 2017-02-24 | 2017-04-26 | 厦门宏发开关设备有限公司 | Surge protection module |
-
2016
- 2016-08-19 CN CN201620911568.3U patent/CN205901293U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602536A (en) * | 2017-02-24 | 2017-04-26 | 厦门宏发开关设备有限公司 | Surge protection module |
| CN106602536B (en) * | 2017-02-24 | 2018-12-21 | 厦门宏发开关设备有限公司 | A kind of surge protection module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170811 Address after: Hangzhou City, Zhejiang province 310000 Xihu District cypress Road No. 6 Building No. 4 Building 501 room 5 Patentee after: Hangzhou Jian Da National Power Technology Co., Ltd. Address before: 310000, Hangzhou, Zhejiang Province, Ling'an City, Sichuan Province, Leping Town, small Village Lane 10 Patentee before: Hangzhou Yao Yao Electric Power Technology Co., Ltd. |