CN208690038U - A kind of SCB breaker with SPD thermal tripping structure - Google Patents
A kind of SCB breaker with SPD thermal tripping structure Download PDFInfo
- Publication number
- CN208690038U CN208690038U CN201821556280.4U CN201821556280U CN208690038U CN 208690038 U CN208690038 U CN 208690038U CN 201821556280 U CN201821556280 U CN 201821556280U CN 208690038 U CN208690038 U CN 208690038U
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- spd
- thermal tripping
- scb
- conductive
- tripping mechanism
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Abstract
The utility model discloses a kind of SCB breakers with SPD thermal tripping structure, belong to technical field of electric equipment.Including SCB breaker body and SPD thermal tripping mechanism, the side of SCB breaker body is provided with U-shaped groove, and the bottom of U-shaped groove is provided with conductive jointing holes and is provided with the first conductive contact on the side wall of one side；The outer casing bottom of SPD thermal tripping mechanism is provided with and the matched conductive plug of conductive jointing holes, one end of conductive plug is electrically connected with the first pin of the varistor being set in SPD thermal tripping mechanism shell, the second pin of varistor is connect by low temperature scolding tin with the first conductive sheet, and the other end of the first conductive sheet is connected with and matched second conductive contact of conductive contact.SPD thermal tripping mechanism is plugged on SCB breaker body by the SCB breaker with SPD thermal tripping structure makes the two constitute an entirety, can greatly reduce installation space；It is connected using inserting mode, facilitates later maintenance.
Description
Technical field
The utility model belongs to technical field of electric equipment, and in particular to a kind of SCB open circuit with SPD thermal tripping structure
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, and the thermal tripping mechanism of SPD is all primary during installation
Property, as long as there is thermal tripping, it is necessary to replacement in time, and replace and SPD is just needed entirely to disassemble from distribution box, then
Install again new, this makes the workload of maintenance personnel very big, and in narrow distribution box, and maintenance personnel dismounts very
Inconvenience, working efficiency are very low.
As those skilled in the art, it is necessary in view of the deficiencies of the prior art, make technological improvement, provide one kind both
Space can be saved, and the technology of personnel's maintenance can be maintained easily.
Utility model content
In order to solve the above problems existing in the present technology, the utility model provides a kind of with SPD thermal tripping structure
SCB breaker.
The technical solution of the utility model is as follows:
A kind of SCB breaker with SPD thermal tripping structure, including SCB breaker body and SPD thermal tripping mechanism, institute
Stating SCB breaker body includes body housing, and the side of the body housing is provided with U-shaped groove, at the bottom of the U-shaped groove
Portion is provided with conductive jointing holes, is provided with the first conductive contact on the side side wall of the U-shaped groove；The SPD thermal tripping
Mechanism includes the SPD thermal tripping mechanism shell with the U-shaped matching grooves, the bottom setting of the SPD thermal tripping mechanism shell
Have and the conductive matched conductive plug of jointing holes, the SPD thermal tripping mechanism interior of shell are provided with varistor, institute
It states conductive plug to be electrically connected with the first pin of the varistor, the second pin of the varistor passes through low temperature scolding tin
It is connect with the first conductive sheet, the other end of first conductive sheet is connected with and the conductive touching of the conductive contact matched second
Head；Insulating barrier, the insulating barrier and first conduction are provided between the varistor and first conductive sheet
Be provided with remote signalling baffle between piece, the remote signalling baffle equipped with make its to the company of first conductive sheet and the varistor
The elastic energy storage part of contact sliding.
Preferably, sliding slot, the two sides of the SPD thermal tripping mechanism shell are provided on the two sides side wall of the U-shaped groove
It is provided with and the matched sliding block of the sliding slot.
Preferably, the elastic energy storage part is energy-stored spring, the end of one end of the energy-stored spring and the remote signalling baffle
Portion's connection, the other end are connected on the SPD thermal tripping mechanism shell.
Preferably, thermal tripping indicator is also connected on the remote signalling baffle.
It is further preferred that the de- mouth indicator of heat includes a strut, one end of the strut and it is set to described
The upper support connection of remote signalling baffle, the other end of the strut stretch out the SPD thermal tripping mechanism shell, and in the strut
End be provided with instruction end cap.
Preferably, the varistor is MOV Zinc-oxide piezoresistor.
Preferably, the body housing is internally provided with gas-discharge tube, tripping mechanism and electromagnet, wherein institute
The one end for stating gas-discharge tube is electrically connected with static contact, and the other end is electrically connected with first conductive contact；The tripping machine
The top of structure is provided with its combined floodgate spanner for closing button or tripping of driving, and bottom end is provided with moving contact, and the one of the moving contact
Hold and be electrically connected with the Wiring port for being set to the body housing side, the other end with the tripping mechanism conjunction button with it is described
Static contact electrical connection；The electromagnet is connected in parallel with the gas-discharge tube, and one end of the electromagnet is connected with one and takes off
Detain actuator.
It is further preferred that the tripping actuator is armature.
Compared with prior art, technical solution provided by the utility model has the advantages that or advantage:
SPD thermal tripping mechanism is plugged by the SCB breaker provided by the utility model with SPD thermal tripping structure
So that the two is constituted an entirety on SCB breaker body, installation space can be greatly reduced, enable staff at one
More components are installed in fixed distribution box or use smaller distribution box, save the cost.
Using the SCB breaker provided by the utility model with SPD thermal tripping structure, go out in SPD thermal tripping mechanism
After existing thermal tripping, it is only necessary to pull up SPD thermal tripping mechanism from SCB breaker body and just be able to carry out maintenance or replacement, significantly
The maintenance time for having saved maintenance personnel, improves 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 SCB breaker body in the utility model embodiment；
Fig. 3 is the schematic diagram of internal structure of SCB breaker body in the utility model embodiment；
Fig. 4 is the structural schematic diagram of SPD thermal tripping mechanism in the utility model embodiment；
Fig. 5 is the schematic diagram of internal structure of SPD thermal tripping mechanism 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 a kind of SCB breaker with SPD thermal tripping structure,
Including SCB breaker body 100 and SPD thermal tripping mechanism 200, the SCB breaker body 1 includes body housing 101, ontology
The side of shell 101 is provided with U-shaped groove 102, the bottom of U-shaped groove 102 is provided with conductive jointing holes 103 and in one side
The first conductive contact 104 is provided on side wall；SPD thermal tripping mechanism 200 includes and the matched SPD thermal tripping machine of U-shaped groove 102
Structure shell 201, the bottom of SPD thermal tripping mechanism shell 201 is provided with and the matched conductive plug 202 of conductive jointing holes 103,
SPD thermal tripping mechanism shell 201 is internally provided with varistor 203, and conductive plug 202 draws with the first of varistor 203
The second pin of foot electrical connection, varistor 203 is connect by low temperature scolding tin with the first conductive sheet 204, the first conductive sheet 204
The other end is connected with and matched second conductive contact 205 of conductive contact 104；Between varistor 203 and the first conductive sheet 205
It is provided with insulating barrier 206, remote signalling baffle 207, remote signalling baffle 207 are provided between insulating barrier 206 and the first conductive sheet 205
Equipped with the elastic energy storage part 208 for sliding it to the tie point of the first conductive sheet 205 and varistor 203.
SCB breaker provided by the utility model embodiment with SPD thermal tripping structure inserts SPD thermal tripping mechanism
Being connected on SCB breaker body makes the two constitute an entirety, can greatly reduce installation space, staff is existed
More components are installed in one fixed distribution box or use smaller distribution box, save the cost.
Further, using provided by the utility model embodiment have SPD thermal tripping structure SCB breaker,
After there is thermal tripping in SPD thermal tripping mechanism, it is only necessary to pull up SPD thermal tripping mechanism from SCB breaker body and just be able to carry out
Maintenance or replacement, are greatly saved the maintenance time of maintenance personnel, improve maintenance efficiency.
In the specific implementation process, in order to making SPD thermal tripping mechanism 200 when being inserted into SCB breaker body 100
More consolidate, preferably, the utility model embodiment is provided with sliding slot 105 on the two sides side wall of U-shaped groove 102,
The two sides of SPD thermal tripping mechanism shell 201 are provided with and the matched sliding block 209 of sliding slot 105.In insertion SPD thermal tripping mechanism 200
When, sliding block 209 is directed at sliding slot 105 first, then gradually pushes U-shaped 102 bottom of groove to, so that conductive plug 202 is inserted into
Into conductive jointing holes 103.Sliding slot 105 can not only help staff that conductive plug 202 is precisely directed to conduction to connect
Jack 103, and can further SPD thermal tripping mechanism 200, so that it will not loosen easily.
In the specific implementation process, the elastic energy storage part 208 in the utility model embodiment specifically uses energy-stored spring,
One end of the energy-stored spring is connect with the end of remote signalling baffle 207, and the other end is connected on body housing 201.
In the specific implementation process, after the scolding tin fusing between varistor 203 and the first conductive sheet 205, 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.Varistor 203 and the first conductive sheet 205 it is separated after, heat
Indicator of threading off, so that staff be helped to find out power-off reason, can improve maintenance efficiency to staff to prompt.Into one
Step, the thermal tripping indicator in the utility model embodiment includes a strut 211, one end of strut 210 and setting
It is connected in the support 210 on remote signalling baffle 207, the other end of strut 211 stretches out SPD thermal tripping mechanism shell 201, and in strut
211 end is provided with instruction end cap 212.After varistor 203 and the first conductive sheet 205 disconnect, the meeting of remote signalling baffle 207 exists
It is moved under the action of elastic energy storage part 208, to drive instruction end cap 212 protruding, plays the role of prompting staff.
In the specific implementation process, the varistor 203 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 utility model embodiment is internally provided with gas discharge in body housing 101
Pipe 106, tripping mechanism 107 and electromagnet 108, wherein one end of gas-discharge tube 106 is electrically connected with static contact 109, another
One end is electrically connected with the first conductive contact 104；The top of tripping mechanism 107 is provided with its conjunction button of driving or combined floodgate of tripping is pulled
Hand 110, bottom end are provided with moving contact 111, one end of moving contact 111 and the Wiring port for being set to 101 side of body housing
112 electrical connections, the other end are electrically connected with the conjunction button of tripping mechanism 107 with static contact 109；Electromagnet 108 and gas-discharge tube
106 are connected in parallel, and one end of electromagnet 108 is connected with a tripping actuator 112, and tripping actuator 112 is logical in electromagnet 108
It can give tripping mechanism 107 1 impact forces in the case where electricity, so that tripping mechanism 107 is threaded off.In specific implementation process
In, tripping actuator 112 can specifically use armature.
The working principle of SCB breaker provided by the utility model embodiment with SPD thermal tripping structure is as follows:
The SCB breaker with SPD thermal tripping structure is concatenated into circuit, then tripping mechanism is closed a floodgate,
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 is led from moving contact 111
Enter, since lightning current is pulsed quantity, when reaching the coil of electromagnet 108, since electric current cannot be mutated in coil inductance, coil two
There is induced potential in end, and induced potential gas breakdown discharge tube 106 discharges, and passes sequentially through the first conductive sheet 204, varistor
203 and conductive plug 202, the conductive ground connection of plug 202 is, it can be achieved that good lightning protection effect；Simultaneously as lightning current is
Pulsed quantity, electromagnet 108 will not trigger the movement of driver 112, not will do it separating brake movement, when preventing each proper device operation
Generate malfunction；
(2) if varistor 203 is internal aging later by long-term use, working performance is bad, inside varistor 203 not
Good open circuit can be formed, when having smaller power current to pass through but be not enough to drive electromagnet 108, varistor 203 can generate heat,
So that scolding tin melts, to separate with the first conductive sheet 204, open circuit is formed, it is ensured that circuit safety.
(3) if varistor 203 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 108, which will drive driver 112, pushes tripping mechanism 107 in component speed on fire, thus disconnected
Open circuit prevents 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 (8)
1. a kind of SCB breaker with SPD thermal tripping structure, including SCB breaker body and SPD thermal tripping mechanism, special
Sign is that the SCB breaker body includes body housing, and the side of the body housing is provided with U-shaped groove, in the U
The bottom of type groove is provided with conductive jointing holes, is provided with the first conductive contact on the side side wall of the U-shaped groove；It is described
SPD thermal tripping mechanism includes the SPD thermal tripping mechanism shell with the U-shaped matching grooves, the SPD thermal tripping mechanism shell
Bottom, which is provided with, is provided with pressure with the conductive matched conductive plug of jointing holes, the SPD thermal tripping mechanism interior of shell
Quick resistance, the conduction plug are electrically connected with the first pin of the varistor, and the second pin of the varistor is logical
It crosses low temperature scolding tin to connect with the first conductive sheet, the other end of first conductive sheet is connected with and the conductive contact matched
Two conductive contacts；Be provided with insulating barrier between the varistor and first conductive sheet, the insulating barrier with it is described
Be provided with remote signalling baffle between first conductive sheet, the remote signalling baffle equipped with make its to first conductive sheet with it is described pressure-sensitive
The elastic energy storage part of the tie point sliding of resistance.
2. the SCB breaker according to claim 1 with SPD thermal tripping structure, which is characterized in that the U-shaped groove
Two sides side wall on be provided with sliding slot, the two sides of the SPD thermal tripping mechanism shell are provided with and the matched sliding block of the sliding slot.
3. the SCB breaker according to claim 1 with SPD thermal tripping structure, which is characterized in that the 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 the SPD heat
On tripping mechanism shell.
4. the SCB breaker according to claim 1 with SPD thermal tripping structure, which is characterized in that the remote signalling baffle
On be also connected with thermal tripping indicator.
5. the SCB breaker according to claim 4 with SPD thermal tripping structure, which is characterized in that the thermal tripping refers to
Show that part includes a strut, one end of the strut is connect with the upper support for being set to the remote signalling baffle, the strut
The other end stretches out the SPD thermal tripping mechanism shell, and the end of the strut is provided with instruction end cap.
6. the SCB breaker according to claim 1 with SPD thermal tripping structure, which is characterized in that the varistor
For MOV Zinc-oxide piezoresistor.
7. any SCB breaker with SPD thermal tripping structure in -6 according to claim 1, which is characterized in that described
Body housing is internally provided with gas-discharge tube, tripping mechanism and electromagnet, wherein one end electricity of the gas-discharge tube
It is connected with static contact, the other end is electrically connected with first conductive contact；The top of the tripping mechanism, which is provided with, drives it
Close the combined floodgate spanner of button or tripping, bottom end is provided with moving contact, one end of the moving contact and be set to described it is external
The Wiring port in shell-side face is electrically connected, and the other end is electrically connected with the conjunction button of the tripping mechanism with the static contact；The electricity
Magnet is connected in parallel with the gas-discharge tube, and one end of the electromagnet is connected with a tripping actuator.
8. the SCB breaker according to claim 7 with SPD thermal tripping structure, which is characterized in that the tripping driving
Part is armature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821556280.4U CN208690038U (en) | 2018-09-21 | 2018-09-21 | A kind of SCB breaker with SPD thermal tripping structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821556280.4U CN208690038U (en) | 2018-09-21 | 2018-09-21 | A kind of SCB breaker with SPD thermal tripping structure |
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| Publication Number | Publication Date |
|---|---|
| CN208690038U true CN208690038U (en) | 2019-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821556280.4U Active CN208690038U (en) | 2018-09-21 | 2018-09-21 | A kind of SCB breaker with SPD thermal tripping structure |
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Cited By (3)
| 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 |
| CN114512975A (en) * | 2022-04-19 | 2022-05-17 | 合肥航太电物理技术有限公司 | Multi-channel lightning electromagnetic protection real-time fault monitoring suppressor |
| CN115149509A (en) * | 2022-09-05 | 2022-10-04 | 国网湖北省电力有限公司 | Plug-in surge protector for power construction |
-
2018
- 2018-09-21 CN CN201821556280.4U patent/CN208690038U/en active Active
Cited By (3)
| 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 |
| CN114512975A (en) * | 2022-04-19 | 2022-05-17 | 合肥航太电物理技术有限公司 | Multi-channel lightning electromagnetic protection real-time fault monitoring suppressor |
| CN115149509A (en) * | 2022-09-05 | 2022-10-04 | 国网湖北省电力有限公司 | Plug-in surge protector for power construction |
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