CN208753241U - A kind of miniature plug-in lightning protection device of combination SPD and SCB - Google Patents
A kind of miniature plug-in lightning protection device of combination SPD and SCB Download PDFInfo
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- CN208753241U CN208753241U CN201821556115.9U CN201821556115U CN208753241U CN 208753241 U CN208753241 U CN 208753241U CN 201821556115 U CN201821556115 U CN 201821556115U CN 208753241 U CN208753241 U CN 208753241U
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- lightning protection
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- scb
- protection device
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Abstract
The utility model discloses the miniature plug-in lightning protection devices of combination SPD and SCB a kind of, belong to technical field of electric equipment.Including ontology and pedestal, the pedestal includes base shell, and the both ends of the base shell are respectively arranged with a Wiring port, and the middle part is provided with two jointing holes, an electroconductive elastic sheet is provided in each jointing holes, each electroconductive elastic sheet is electrically connected with a Wiring port respectively；The ontology includes body housing, and the bottom of the body housing is provided with the first conductive plug and the second conductive plug, and realizes with jointing holes cooperation and be electrically connected with the pedestal by the described first conductive plug and the second conductive plug.This combines the miniature plug-in lightning protection device of SPD and SCB that SCB and SPD are combined into an entirety, needs the space occupied to greatly reduce during installation, and staff is facilitated to safeguard replacement, improves maintenance efficiency.
Description
Technical field
The utility model belongs to technical field of electric equipment, and in particular to a kind of miniature plug-in of combination SPD and SCB is anti-
Thunder protective device.
Background technique
In low-voltage distribution system, influenced on due to the external world, such as overvoltage caused by thunder and lightning, usually using surge protection
Device (Surge Protection Device, SPD) is protected.(lightning current impact or transient state mistake are subjected to when deterioration occurs for SPD
Voltge surge), when starting voltage being caused to fall below supply voltage, power frequency leakage current can be increased rapidly, when this electric current only has
A few ampere-hour SPD thermal tripping mechanisms can disconnecting circuit, when electric current be greater than 10A or more when, SPD fever catching fire speed be faster than
Heat transfer speed will catch fire, and cause fire.The generation of fire in order to prevent, usually the front end of SPD connected one it is external
Disconnector SCB (Surge Protecter Device Circuit Breaker) is protected, and the effective disjunction of SCB energy is low short
Road electric current provides fine short-circuit protection for SPD.
Currently, existing SPD and SCB are two independent devices, need to occupy biggish sky in distribution box during installation
Between, moreover, existing SPD and SCB are directly to connect with distribution box during installation, the meeting when SPD or SCB damage needs replacing
The trouble compared.
As those skilled in the art, it is necessary in view of the deficiencies of the prior art, make technological improvement, provide a kind of energy
Space is enough saved, the technology of SPD and SCB are convenient for changing.
Utility model content
In order to solve the above problems existing in the present technology, the utility model provides a kind of the miniature of combination SPD and SCB
Plug-in lightning protection device.
The technical solution of the utility model is as follows:
A kind of miniature plug-in lightning protection device of combination SPD and SCB, including ontology and pedestal, the pedestal include
Base shell, the both ends of the base shell are respectively arranged with a Wiring port, and the middle part is provided with two jointing holes, each
An electroconductive elastic sheet is provided in the jointing holes, each electroconductive elastic sheet is electrically connected with a Wiring port respectively；
The ontology includes body housing, and the bottom of the body housing is provided with the first conductive plug and the second conductive plug,
The body housing is cooperated by the described first conductive plug and the second conductive plug with the corresponding jointing holes
Realization is connect with the pedestal；The inside of the body housing is respectively arranged with gas-discharge tube, tripping machine in the same plane
Structure, electromagnet and varistor, wherein one end of the gas-discharge tube is electrically connected with static contact, other end electrical connection
There is the first conductive sheet, the other end end of first conductive sheet is welded by the first pin of low temperature scolding tin and the varistor
It connects in succession, the second pin of the varistor is electrically connected with the described second conductive plug；The top of the tripping mechanism is set
It is equipped with its combined floodgate spanner for closing button or tripping of driving, bottom end is provided with moving contact, one end of the moving contact and described the
One conductive plug electrical connection, the other end are electrically connected with the conjunction button of the tripping mechanism with the static contact；The electromagnet
It is connected in parallel with the gas-discharge tube, one end of the electromagnet is connected with tripping actuator.
Preferably, the U-shaped structure of the base shell, two jointing holes are set to the interior bottom of chamber of the base shell
Portion, is respectively arranged with sliding slot on the inner cavity two sides side wall of the base shell, the two sides of the body housing be respectively arranged with
The matched sliding block of sliding slot.
Preferably, the static contact is electrically connected by the second conductive sheet with the gas-discharge tube.
Preferably, it is provided with insulating barrier between first conductive sheet and the first pin of the varistor, it is described
It is provided with remote signalling baffle between first conductive sheet and the insulating barrier, the remote signalling baffle is led to described first equipped with making it
The elastic energy storage part that the tie point of electric piece and the varistor slides.
It is further preferred that the elastic energy storage part is energy-stored spring, one end of the energy-stored spring and the remote signalling are kept off
The end of plate connects, and the other end is connected on the body housing.
It is further preferred that the remote signalling baffle is also connected with a thermal tripping indicator.
It is further preferred that the thermal tripping indicator includes a strut, one end of the strut and it is set to described
Support connection on remote signalling baffle, the other end of the strut stretch out the body housing and its end are provided with indication end
Cap.
Preferably, the varistor is MOV Zinc-oxide piezoresistor.
Preferably, the tripping actuator is armature.
Compared with prior art, technical solution provided by the utility model has the advantages that or advantage:
The miniature plug-in lightning protection device of combination SPD and SCB provided by the utility model combines SCB and SPD
It needs the space occupied to greatly reduce during installation compared to individual SCB and SPD at an entirety, enables staff
It is enough that more components are installed in a fixed distribution box or use smaller distribution box, save the cost.
The miniature plug-in lightning protection device of combination SPD and SCB provided by the utility model uses plug-in structure,
Pedestal is installed in distribution box, then ontology is plugged on pedestal, when ontology damage, it is only necessary to extract ontology energy
It is enough repaired or replaced, maintenance time is greatly saved, improve maintenance efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment；
Fig. 2 is the structural schematic diagram of ontology in the utility model embodiment；
Fig. 3 is the schematic diagram of internal structure of ontology in the utility model embodiment；
Fig. 4 is the structural schematic diagram of pedestal in the utility model embodiment；
Fig. 5 is the schematic diagram of internal structure of pedestal in the utility model embodiment.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, practical below in conjunction with this is newly to make
The purposes, technical schemes and advantages of the embodiment of the present invention are clearer, and following will be combined with the drawings in the embodiments of the present invention, to this
Technical solution in inventive embodiments is clearly and completely described, it is clear that described embodiment is that a part of the invention is real
Example is applied, instead of all the embodiments.The component of embodiments of the present invention, which are generally described and illustrated herein in the accompanying drawings can be with
A variety of different configurations are to arrange and design.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the embodiment of the present invention, it should be noted that indicating position or positional relationship is based on shown in attached drawings
The orientation or positional relationship invention product using when the orientation or positional relationship usually put or this field
Orientation or positional relationship that technical staff usually understands or the invention product using when the orientation usually put or position close
System, is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must have
Specific orientation is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " the
One ", " second " is only used for distinguishing description, is not understood to indicate or imply relative importance.
In the description of the embodiment of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term
" setting ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally connect
It connects；It can be and be directly connected to, can also be indirectly connected with by intermediary.For the ordinary skill in the art, may be used
The attached drawing in the concrete meaning type embodiment of above-mentioned term in the present invention is understood with concrete condition, in the embodiment of the present invention
Technical solution is clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than complete
The embodiment in portion.The component of embodiments of the present invention, which are generally described and illustrated herein in the accompanying drawings can be with a variety of different configurations
To arrange and design.
As Figure 1-Figure 5, the utility model embodiment provides the miniature plug-in lightning protection of combination SPD and SCB a kind of
Protective device, including ontology 100 and pedestal 200, pedestal 200 include base shell 201, and the both ends of base shell 201 are set respectively
It is equipped with a Wiring port 202, the middle part is provided with two jointing holes 203, a conductive bullet is provided in each jointing holes 203
Piece 204, each electroconductive elastic sheet 204 are electrically connected with a Wiring port 202 respectively；Ontology 100 includes body housing 101, ontology
The bottom of shell 101 is provided with the first conductive plug 102 and the second conductive plug 103, body housing 101 are led by first
Electric plug 102 and the second conductive plug 103 are realized with the cooperation of corresponding jointing holes 203 and are electrically connected with pedestal 200；This is external
The inside of shell 101 is respectively arranged with gas-discharge tube 104, tripping mechanism 105, electromagnet 106 and pressure-sensitive in the same plane
Resistance 107, wherein one end of gas-discharge tube 104 is electrically connected with static contact 108, and the other end is electrically connected with the first conductive sheet
109, the other end end of the first conductive sheet 109 is welded to connect by the first pin of low temperature scolding tin and varistor 107, pressure-sensitive
The second pin of resistance 107 is electrically connected with the second conductive plug 103；The top of tripping mechanism 105 is provided with driving, and it closes button
Or the combined floodgate spanner 110 of tripping, bottom end are provided with moving contact 111, one end of moving contact 111 and the first conductive plug
102 electrical connections, the other end are electrically connected with the conjunction button of tripping mechanism 105 with static contact 108；Electromagnet 106 and gas-discharge tube
104 are connected in parallel, and one end of electromagnet 106 is connected with tripping actuator 112.
Combine provided by the utility model embodiment the miniature plug-in lightning protection device of SPD and SCB by SCB and
SPD is combined into an entirety and needs the space occupied to greatly reduce during installation compared to individual SCB and SPD, so that work
More components can be installed in a fixed distribution box or use smaller distribution box, save the cost by making personnel.
Further, the miniature plug-in lightning protection device of SPD and SCB is combined provided by the utility model embodiment
Using plug-in structure, i.e., pedestal is installed in distribution box, then ontology is plugged on pedestal, when ontology damage, only
It needs to extract ontology and is just able to carry out maintenance or replacement, maintenance time is greatly saved, improves maintenance efficiency.
In the specific implementation process, in order to enable ontology 100 connect more firm with pedestal 200, preferably,
The U-shaped structure of base shell 201 in the utility model embodiment, two jointing holes 203 are set to the interior bottom of chamber of base shell 201
Portion, is respectively arranged with sliding slot 205 on the inner cavity two sides side wall of base shell 201, the two sides of body housing 101 be respectively arranged with
The matched sliding block 113 of sliding slot 205.During installation, pedestal is fixed in distribution box first, then by 101 two sides of body housing
Sliding block 113 be caught in sliding slot 204, then gradually push base bottom to, so that the first conductive plug 102 and the second conduction connect
Plug 103 is inserted into respectively in corresponding jointing holes 203.Sliding slot 205 can not only help staff by the first conductive plug
102 and second conductive plug 103 be directed at corresponding jointing holes 203, and ontology 100 can be further fixed, so that it will not
It loosens easily.
In the specific implementation process, since moving contact 111 is to be connect by the conjunction button of tripping mechanism 105 with static contact 108
Touching, it can be needed at the time of contact to 108 1 active forces of static contact in order to which the static contact 108 made is able to bear this active force
To static contact 108, a support construction is set, and static contact 108 is electrically connected with gas-discharge tube 104, in order to real simultaneously
The two existing functions, preferably, static contact 108 is put using the second conductive sheet 113 with gas in the utility model embodiment
Fulgurite 104 is electrically connected.Second conductive sheet can not only realize being electrically connected between static contact 108 and gas-discharge tube 104,
The hardness of body can provide enough support for static contact 108, so that static contact 108 is able to bear the contact of moving contact 111
Active force.
In the specific implementation process, in order to avoid the first pin of the first conductive sheet 109 and varistor 107 is working as this
100 temperature of body is excessively high and causes to be completely separated when melts soldering tin, and then causes fire, preferably, this is practical new
Type embodiment is provided with insulating barrier 114 between the first conductive sheet 109 and the first pin of varistor 107, and first is conductive
Be provided with remote signalling baffle 115 between piece 109 and insulating barrier 114, remote signalling baffle 115 equipped with make its to the first conductive sheet 109
The elastic energy storage part 116 slided with the tie point of varistor 107.When working properly, one end of remote signalling baffle 115 is in elasticity
It is against under the action of energy storing members 116 on the electric contact between first conductive sheet 109 and the first pin of varistor 107, works as weldering
After tin fusing, remote signalling baffle 115 can strut the first conductive sheet 109 under the action of elastic energy storage part 116, to make the first conduction
Piece 109 and the first pin of varistor 107 are completely separated, and realize being fully disconnected for entire turning circuit, have reliable peace
Full property guarantee.It is further preferred that 116 elastic energy storage parts in the utility model embodiment specifically use energy-stored spring, it is described
One end of energy-stored spring is connect with the end of remote signalling baffle 115, and the other end is connected on body housing 101.
In the specific implementation process, after the first conductive sheet 109 is separated with the first pin of varistor 107, entirely
Circuit can power off, in order to enable staff can have found power-off reason in time, preferably, the utility model embodiment exists
A thermal tripping indicator is also connected on remote signalling baffle 116.When the first pin of the first conductive sheet 109 and varistor 107
After separation, thermal tripping indicator, so that staff be helped to find out power-off reason, can improve maintenance to staff to prompt
Efficiency.It is further preferred that the thermal tripping indicator in the utility model embodiment includes a strut 118, strut 118
One end connect with the support 117 being set on remote signalling baffle 116, the other end of strut 118 stretches out body housing 101 and in it
End is provided with instruction end cap 119.After the first conductive sheet 109 is separated with the first pin of varistor 107, remote signalling baffle
116 can move under the action of elastic energy storage part 116, to drive instruction end cap 119 protruding, play prompt staff
Effect.
In the specific implementation process, the varistor 107 in the utility model embodiment specifically uses MOV zinc oxide pressure
Quick resistance, when electric current increases sharply, MOV Zinc-oxide piezoresistor can generate heat rapidly and thermally conductive by the first pin of varistor,
It can be realized after low temperature scolding tin node is heated and achieve the purpose that thermal tripping.
In the specific implementation process, the tripping actuator 112 in the utility model embodiment specifically uses armature, in electricity
Magnet 106 will drive armature impact tripping mechanism 105 in the case where energization, achieve tripping.
Combine the work of the miniature plug-in lightning protection device of SPD and SCB former provided by the utility model embodiment
It manages as follows:
The miniature plug-in lightning protection device of the combination SPD and SCB is concatenated into circuit, then by tripping mechanism
105 close a floodgate, and work is divided into following three kinds of situations:
(1) when its normal operating conditions, there is good working performance；If meeting with lightning stroke, lightning current connects from the first conduction
Plug 102 imports, since lightning current is pulsed quantity, when reaching the coil of electromagnet 106, since electric current cannot dash forward in coil inductance
Become, there is induced potential in coil both ends, and induced potential gas breakdown discharge tube 104 discharges, and pass sequentially through varistor 107 with
And the second conductive plug 103, the second conductive ground connection of plug 103 is, it can be achieved that good lightning protection effect；Simultaneously as thunder and lightning
Stream is pulsed quantity, and electromagnet 106 will not trigger tripping actuator 112 and act, and not will do it separating brake movement, is preventing each device just
Malfunction is often generated when work；
(2) if varistor 107 is internal aging later by long-term use, working performance is bad, inside varistor 107 not
Good open circuit can be formed, when having smaller power current to pass through but be not enough to drive electromagnet 106, varistor 107 can generate heat,
So that scolding tin melts, to separate with the first conductive sheet 109, open circuit is formed, it is ensured that circuit safety.
(3) if varistor 107 damages, when inside being caused to have biggish power current to pass through, it is far small that scolding tin melts speed
Make its tripping at this point, electromagnet 106, which will drive tripping actuator 112, pushes tripping mechanism 105 in component speed on fire, from
And disconnecting circuit, prevent component on fire, it is ensured that circuit safety.
The utility model is not limited to above-mentioned optional embodiment, anyone can obtain under the enlightenment of the utility model
Other various forms of products, however, making any variation in its shape or structure, all the utility model rights that falls into are wanted
The technical solution in confining spectrum is sought, is all fallen within the protection scope of the utility model.
Claims (9)
1. the miniature plug-in lightning protection device of combination SPD and SCB a kind of, including ontology and pedestal, which is characterized in that described
Pedestal includes base shell, and the both ends of the base shell are respectively arranged with a Wiring port, and the middle part is provided with two to connect
Jack, is provided with an electroconductive elastic sheet in each jointing holes, each electroconductive elastic sheet respectively with the terminals
Mouth electrical connection；The ontology includes body housing, and the bottom of the body housing is provided with the first conductive plug and second and leads
Electric plug；The inside of the body housing be respectively arranged in the same plane gas-discharge tube, tripping mechanism, electromagnet with
And varistor, wherein one end of the gas-discharge tube is electrically connected with static contact, and the other end is electrically connected with the first conduction
The other end end of piece, first conductive sheet is welded to connect by the first pin of low temperature scolding tin and the varistor, institute
The second pin for stating varistor is electrically connected with the described second conductive plug；The top of the tripping mechanism, which is provided with, drives it
The combined floodgate spanner of button or tripping is closed, bottom end is provided with moving contact, and one end of the moving contact is patched with first conduction
Head electrical connection, the other end are electrically connected with the conjunction button of the tripping mechanism with the static contact；The electromagnet and the gas
Discharge tube is connected in parallel, and one end of the electromagnet is connected with tripping actuator.
2. the miniature plug-in lightning protection device of combination SPD and SCB according to claim 1, which is characterized in that described
The U-shaped structure of base shell, two jointing holes are set to the intracavity bottom of the base shell, the base shell it is interior
Sliding slot is respectively arranged on the side wall of chamber two sides, the two sides of the body housing are respectively arranged with and the matched sliding block of the sliding slot.
3. the miniature plug-in lightning protection device of combination SPD and SCB according to claim 1, which is characterized in that described
Static contact is electrically connected by the second conductive sheet with the gas-discharge tube.
4. the miniature plug-in lightning protection device of combination SPD and SCB according to claim 1, which is characterized in that described
Insulating barrier, first conductive sheet and the insulation are provided between first conductive sheet and the first pin of the varistor
Be provided with remote signalling baffle between partition, the remote signalling baffle equipped with make its to first conductive sheet and the varistor
The elastic energy storage part of tie point sliding.
5. the miniature plug-in lightning protection device of combination SPD and SCB according to claim 4, which is characterized in that described
Elastic energy storage part is energy-stored spring, and one end of the energy-stored spring is connect with the end of the remote signalling baffle, and the other end is connected to
On the body housing.
6. the miniature plug-in lightning protection device of combination SPD and SCB according to claim 4, which is characterized in that described
Remote signalling baffle is also connected with a thermal tripping indicator.
7. the miniature plug-in lightning protection device of combination SPD and SCB according to claim 6, which is characterized in that described
Thermal tripping indicator includes a strut, and one end of the strut is connect with the support being set on the remote signalling baffle, described
The other end of strut stretches out the body housing, and the end of the strut is provided with instruction end cap.
8. the miniature plug-in lightning protection device of combination SPD and SCB according to claim 1, which is characterized in that described
Varistor is MOV Zinc-oxide piezoresistor.
9. the miniature plug-in lightning protection device of combination SPD and SCB according to claim 1, which is characterized in that described
Tripping actuator is armature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821556115.9U CN208753241U (en) | 2018-09-21 | 2018-09-21 | A kind of miniature plug-in lightning protection device of combination SPD and SCB |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821556115.9U CN208753241U (en) | 2018-09-21 | 2018-09-21 | A kind of miniature plug-in lightning protection device of combination SPD and SCB |
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| Publication Number | Publication Date |
|---|---|
| CN208753241U true CN208753241U (en) | 2019-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821556115.9U Active CN208753241U (en) | 2018-09-21 | 2018-09-21 | A kind of miniature plug-in lightning protection device of combination SPD and SCB |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113299526A (en) * | 2021-05-24 | 2021-08-24 | 浙江雷源电气有限公司 | Backup protector convenient for replacing module |
| CN114089069A (en) * | 2021-11-18 | 2022-02-25 | 贵州电网有限责任公司 | Portable power distribution terminal FTU automatic switch aerial plug sequence test method and tool |
-
2018
- 2018-09-21 CN CN201821556115.9U patent/CN208753241U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113299526A (en) * | 2021-05-24 | 2021-08-24 | 浙江雷源电气有限公司 | Backup protector convenient for replacing module |
| CN114089069A (en) * | 2021-11-18 | 2022-02-25 | 贵州电网有限责任公司 | Portable power distribution terminal FTU automatic switch aerial plug sequence test method and tool |
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