CN107528290A - A kind of inverse time lag current-limiting type electrical fire prevention and control device and method - Google Patents
A kind of inverse time lag current-limiting type electrical fire prevention and control device and method Download PDFInfo
- Publication number
- CN107528290A CN107528290A CN201710910858.5A CN201710910858A CN107528290A CN 107528290 A CN107528290 A CN 107528290A CN 201710910858 A CN201710910858 A CN 201710910858A CN 107528290 A CN107528290 A CN 107528290A
- Authority
- CN
- China
- Prior art keywords
- current
- solid
- state switch
- instantaneous
- control unit
- 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
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
- H02H3/093—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current with timing means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
Abstract
The invention discloses a kind of inverse time lag current-limiting type electrical fire prevention and control device and method; including control unit, solid-state switch, analog signal conditioner circuit and for detect by the current detecting unit of the instantaneous ac current information of protective loop; wherein; the output end of current detecting unit is connected through analog signal conditioner circuit with the input of control unit; the output end of control unit is connected with solid-state switch; it is connected by protective loop by solid-state switch with power supply; the device and method has anti-time limit characteristic, and small volume.
Description
Technical field
The invention belongs to electrical fire prevention and control field, is related to a kind of inverse time lag current-limiting type electrical fire prevention and control device and side
Method.
Background technology
The electric current passed through when short circuit or overload fault occurs with electric line in its wire can be significantly increased, and cause conductor overheating
Overtemperature and insulating properties damage, produce electric disaster hidden-trouble or directly trigger electrical fire.Conventional electrical fireproof current-limiting type at present
Protector, exceed short circuit protection and setting current value I in the current value I (t) of protected circuitSWhen, opened by the solid-state in protector
The short circuit current in the instantaneous quick disjunction line loop of unit (typically by MOSFET pipes or IGBT or Group of Silicon Controlled Rectifier into) is closed with reality
Existing short trouble protection, when the current value I (t) of protected circuit exceedes overload protection setting current value as defined in segmentation, press
After delay time delay as defined in its corresponding segments, then by the overload current in solid state switching module disjunction line loop to realize
Overload fault is protected.Following defect be present in such protector and guard method：
Circuit overload protection is differential discontinuously, protection accuracy is low.It is corresponding because its protection seting current value is segmented
Time-delay action is specified time, so when the overload current value of protected circuit changes between two sections of protection seting current values
When its operating time of protection be same certain value, it is impossible to make corresponding intense adjustment automatically with the change of fault current.Example
Such as, overload protection setting current value is segmented into 1.0Ie(IeFor with the rated operational current of electric line), 1.5Ie、2.0Ie, it is right
It is T to answer delay time setting stepwise1.0、T1.5,T2.0And T1.0>T1.5>T2.0, when the current value of protected circuit is whole in overload protection
Determine current value 1.0Ie~1.5IeBetween when changing, solid-state switch unit delay T1.0Overload electricity after time in disjunction line loop
Stream, when the current value of protected circuit is in 1.5Ie~2.0IeBetween when changing, solid-state switch unit delay T1.5Divide again after time
Overload current in disconnected line loop, the like.Obviously, the current value of protected circuit is in same section of protection seting current value
Inside changing solid-state switch unit time-delay action all same anyway, (such as the current value of protected circuit is in 1.0Ie~
1.5IeIn the range of change when its solid-state switch unit time-delay action be T1.0), that is, circuit overload size of current be present not
Protection act delay time identical situation together, it is impossible to which the anti-time limit characteristic that accurate coincidence circuit protection should observe is (i.e.
The bigger protection act delay time of overload current is shorter) require, protecting effect is bad in actual applications.
The content of the invention
A kind of the shortcomings that it is an object of the invention to overcome above-mentioned prior art, there is provided inverse time lag current-limiting type electrical fire
Prevention and control device and method, the device and method have anti-time limit characteristic.
To reach above-mentioned purpose, inverse time lag current-limiting type electrical fire prevention and control device of the present invention include control unit,
Solid-state switch, analog signal conditioner circuit and for detect by the current detecting list of the instantaneous ac current information of protective loop
Member, wherein, the output end of current detecting unit is connected through analog signal conditioner circuit with the input of control unit, and control is single
The output end of member is connected with solid-state switch, is connected by protective loop by solid-state switch with power supply.
Described control unit includes short circuit protection module, single-chip microcomputer and photoelectrical coupler, wherein, short circuit protection module it is defeated
Output end of the input with analog signal conditioner circuit for entering end and single-chip microcomputer is connected, the output end of short circuit protection module and
The output end of single-chip microcomputer is connected with the input of photoelectrical coupler, the output end of photoelectrical coupler and the control of solid-state switch
End is connected.
Also include being used to make the reset circuit that short circuit protection module and single-chip microcomputer are resetted.
The solid-state switch is made up of some Sic power tubes connection in series-parallel.
Single-chip microcomputer is connected with external device by ethernet communication unit.
The current detecting unit is current transformer.
Inverse time lag current-limiting type electrical fire preventing control method of the present invention comprises the following steps：
1) detection is by the instantaneous ac current information of protective loop in real time for current detecting unit, then by by protective loop
Instantaneous ac current information is sent into analog signal conditioner circuit, and analog signal conditioner circuit is to the wink by protective loop
When alternating current information nursed one's health, obtain by the virtual value I (t) of protective loop instantaneous ac current, then will be by protective loop
The virtual value I (t) of instantaneous ac current is sent into control unit；
2) in a control unit, as I (t)>Is, then assert and short trouble occurred by protective loop, control unit produces short
Road current control instruction, makes the instantaneous disjunction of solid-state switch, while exist according to anti-time limit characteristic further according to short circuit current control instruction
Line computation standby short-circuit protection actuation time t1, then the standby short-circuit protection actuation time t that is delayed1Afterwards by short circuit current control instruction
Send into solid-state switch, solid-state switch is entered line delay disjunction and realize the instantaneous disjunction back-up protection of short trouble, wherein, ISFor
Default short circuit protection and setting current value；Work as Ie<I(t)≤IsWhen, then assert and overload fault, control unit production are occurred by protective loop
Raw overload current control instruction, while according to the online computation overload operating time of protection t of anti-time limit characteristic2, then it was delayed again
Carry operating time of protection t2Overload current control instruction is sent into solid-state switch afterwards, solid-state switch is entered line delay disjunction,
Wherein, IeFor with electric line rated operational current；As I (t)≤IeWhen, then assert by protective loop normal work, control unit production
Raw non-faulty current control instruction, then sends non-faulty current control instruction into solid-state switch, solid-state switch is according to institute
Stating non-faulty current control instruction makes solid-state switch keep current on off state.
The invention has the advantages that：
Inverse time lag current-limiting type electrical fire prevention and control device and method of the present invention are believed in concrete operations by simulating
Number modulate circuit obtains having by protective loop instantaneous ac current to being nursed one's health by the instantaneous ac current information of protective loop
Valid value I (t), then by judging short-circuit event whether occurs by protective loop by the virtual value I (t) of protective loop instantaneous ac current
Barrier and overload fault, meanwhile, when short trouble, then the instantaneous disjunction of solid-state switch, and root are made according to short circuit current control instruction
According to anti-time limit characteristic in line computation standby short-circuit protection actuation time t1, be then delayed standby short-circuit protection actuation time t1After make
Solid-state switch enters line delay disjunction and realizes the instantaneous disjunction back-up protection of short trouble, when overload fault occurs, then utilizes inverse time
Limit property calculation overload protection actuation time t2, and the overload protection actuation time t that is delayed2Afterwards, solid-state switch is made to enter line delay point
It is disconnected, it is simple, convenient so as to realize to by the protection of protective loop, and the differential continuous, protection of electricity consumption circuit overload protection
Precision is higher, while has anti-time limit characteristic, overcomes existing GPF (General Protection False method and protector in same section of protection seting electric current
No matter how electricity consumption line current changes in value, the defects of protection act delay time all same, and then realizes to electric line
Because short trouble and overload fault trigger effective, the accurate prevention and control of electrical fire accident.
Further, the present invention in solid-state switch be made up of some Sic power tubes connection in series-parallel, the volume of solid-state switch and lead to
State resistance is smaller, and the area of the heat abstractor supporting with it is smaller, while is easily installed and applies.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Wherein, 1 it is current detecting unit, 2 be analog signal conditioner circuit, 3 be short circuit protection module, 4 is single-chip microcomputer, 5
It is photoelectrical coupler for reset circuit, 6.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings：
With reference to figure 1, inverse time lag current-limiting type electrical fire prevention and control device of the present invention includes control unit B, solid-state is opened
Close C, analog signal conditioner circuit 2 and for detecting by the current detecting unit 1 of the instantaneous ac current information of protective loop,
Wherein, the output end of current detecting unit 1 is connected through analog signal conditioner circuit 2 with control unit B input, and control is single
First B output end is connected with solid-state switch C, is connected by protective loop by solid-state switch C with power supply.
Described control unit B includes short circuit protection module 3, single-chip microcomputer 4 and photoelectrical coupler 6, wherein, short circuit protection module
The output end of 3 input and the input of single-chip microcomputer 4 with analog signal conditioner circuit 2 is connected, short circuit protection module 3
The input of output end and the output end of single-chip microcomputer 4 with photoelectrical coupler 6 is connected, and the output end of photoelectrical coupler 6 is with consolidating
State switch C control terminal is connected.In addition, present invention additionally comprises for making short circuit protection module 3 and single-chip microcomputer 4 resetted
Reset circuit 5.
The solid-state switch C is made up of some Sic power tubes connection in series-parallel；Single-chip microcomputer 4 passes through Ethernet with external device
Communication unit A is connected；Current detecting unit 1 is current transformer.
Analog signal conditioner circuit 2 is changed by I/V and amplifying circuit, clamp diode, amplitude limit voltage-stabiliser tube, general resistance-capacitance device
The wave filter and RMS conversion device composition of part composition.
Short circuit protection module 3 is using comparator, general digital or simulation potentiometer and general capacitance resistance ware composition；Reset electricity
Road 5 is made up of mechanical button and capacitance resistance ware, and the reset of short circuit protection module 3 and single-chip microcomputer 4 is realized by pressing mechanical button.
Inverse time lag current-limiting type electrical fire preventing control method of the present invention comprises the following steps：
1) current detecting unit 1 detects by the instantaneous ac current information of protective loop in real time, then will be by protective loop
Instantaneous ac current information send into analog signal conditioner circuit 2, analog signal conditioner circuit 2 is to described by protective loop
Instantaneous ac current information nursed one's health, obtain by the virtual value I (t) of protective loop instantaneous ac current, then will be protected
The virtual value I (t) of loop instantaneous ac current is sent into control unit B；
2) in control unit B, as I (t)>Is, then assert and short trouble occurred by protective loop, control unit B is produced
Short circuit current control instruction, make the instantaneous disjunctions of solid-state switch C further according to short circuit current control instruction, while according to anti-time limit characteristic
In line computation standby short-circuit protection actuation time t1, then the standby short-circuit protection actuation time t that is delayed1Short circuit current control is referred to afterwards
Order is sent into solid-state switch C, solid-state switch C is entered line delay disjunction and is realized the instantaneous disjunction back-up protection of short trouble, wherein,
ISTo preset short circuit protection and setting current value；Work as Ie<I(t)≤IsWhen, then assert and overload fault is occurred by protective loop, control is single
First B produces overload current control instruction, while according to the online computation overload operating time of protection t of anti-time limit characteristic2, then prolong again
When overload protection actuation time t2Overload current control instruction is sent into solid-state switch C afterwards, solid-state switch C is entered line delay
Disjunction, wherein, IeFor with electric line rated operational current；As I (t)≤IeWhen, then assert by protective loop normal work, control
Unit B produces non-faulty current control instruction, then sends non-faulty current control instruction into solid-state switch C, solid-state is opened
Close C makes solid-state switch C keep current on off state according to the non-faulty current control instruction.
It should be noted that will delay standby short-circuit protection actuation time t1And delay overload protection actuation time t2It is denoted as
Operating time of protection t, I (t) value is bigger, and operating time of protection t is shorter, otherwise I (t) values are smaller, and operating time of protection t is longer,
Specifically, t expression formula is：
Wherein, tpFor time constant, general tpTake 0.8,3.4 or 13.5.
Non-faulty current control instruction, overload current control instruction and short circuit current control instruction are through photoelectrical coupler 6
Send to solid-state switch C control terminal, to control solid-state switch C break-makes, the output end of reset circuit 5 and answering for single-chip microcomputer 4
The reset terminal of position end and short circuit protection module 3 is connected.In addition, by ethernet communication unit A by by the real-time of protective loop
Current value and fault message are sent into external device.
When overload fault occurs by protection circuit, and work as I (t)/Ie<IKWhen, IKCan be 1.2,1.3 or 1.5, by I (t)/
Ie=IKComputation overload operating time of protection t2, avoid when overload fault situation is I (t)>IeIt is and unlimited close to IeWhen, I (t)/Ie
≈ 1, the overload protection actuation time t being calculated according to formula (1)2Tend to be infinitely great, lead to not send overload current control
Instruction；In addition to case above, according to formula (1) computation overload operating time of protection t2。
In addition, judging short trouble whether occurs by protective loop by short circuit protection module 3, and work as and sent out by protective loop
During raw short trouble, short circuit current control instruction is produced；Judge whether overload fault is occurred by protective loop by single-chip microcomputer 4,
And when overload fault occurs by protective loop, then overload current control instruction is produced, at the same it is short by the calculating standby of single-chip microcomputer 4
Road operating time of protection t1And overload protection actuation time t2。
Present invention additionally comprises：Short circuit and overload fault are confirmed after excluding, removing overload current by reset circuit 5 controls
Instruction and short circuit current control instruction, solid-state switch unit C make power supply be connected with by protective loop again.
It should be noted that the present invention practical application mode and be not restricted to the described embodiments, do not departing from this hair
On the premise of bright main scope, the present invention also has various respective changes and improvement, and these changes and improvements should all fall into this hair
In bright claimed scope, and protection domain can be by the present patent application text appended claims and its equivalent circle
It is fixed.
Claims (7)
1. a kind of inverse time lag current-limiting type electrical fire prevention and control device, it is characterised in that including control unit (B), solid-state switch
(C), analog signal conditioner circuit (2) and for detect by the current detecting unit of the instantaneous ac current information of protective loop
(1), wherein, input phase of the output end through analog signal conditioner circuit (2) with control unit (B) of current detecting unit (1)
Connection, the output end of control unit (B) are connected with solid-state switch (C), pass through solid-state switch (C) and power supply phase by protective loop
Connection.
2. inverse time lag current-limiting type electrical fire prevention and control device according to claim 1, it is characterised in that described control unit
(B) short circuit protection module (3), single-chip microcomputer (4) and photoelectrical coupler (6) are included, wherein, the input of short circuit protection module (3)
And output end of the input of single-chip microcomputer (4) with analog signal conditioner circuit (2) is connected, short circuit protection module (3) it is defeated
Go out input of the output end of end and single-chip microcomputer (4) with photoelectrical coupler (6) to be connected, the output end of photoelectrical coupler (6)
It is connected with the control terminal of solid-state switch (C).
3. inverse time lag current-limiting type electrical fire prevention and control device according to claim 2, it is characterised in that also include being used to make
The reset circuit (5) that short circuit protection module (3) and single-chip microcomputer (4) are resetted.
4. inverse time lag current-limiting type electrical fire prevention and control device according to claim 1, it is characterised in that the solid-state switch
(C) it is made up of some Sic power tubes connection in series-parallel.
5. inverse time lag current-limiting type electrical fire prevention and control device according to claim 1, it is characterised in that single-chip microcomputer (4) with
External device is connected by ethernet communication unit (A).
6. inverse time lag current-limiting type electrical fire prevention and control device according to claim 1, it is characterised in that the current detecting
Unit (1) is current transformer.
7. a kind of inverse time lag current-limiting type electrical fire preventing control method, it is characterised in that based on the inverse time lag limit described in claim 1
Streaming electrical fire prevention and control device, comprises the following steps：
1) detection is by the instantaneous ac current information of protective loop in real time for current detecting unit (1), then by by protective loop
Instantaneous ac current information is sent into analog signal conditioner circuit (2), and analog signal conditioner circuit (2) is protected back to described
The instantaneous ac current information on road is nursed one's health, and is obtained by the virtual value I (t) of protective loop instantaneous ac current, then will be protected
The virtual value I (t) for protecting loop instantaneous ac current is sent into control unit (B)；
2) in control unit (B), as I (t)>Is, then assert and short trouble occurred by protective loop, control unit (B) produces short
Road current control instruction, makes solid-state switch (C) instantaneous disjunction further according to short circuit current control instruction, while according to anti-time limit characteristic
In line computation standby short-circuit protection actuation time t1, then the standby short-circuit protection actuation time t that is delayed1Short circuit current control is referred to afterwards
Order is sent into solid-state switch (C), solid-state switch (C) is entered line delay disjunction and is realized the instantaneous disjunction back-up protection of short trouble,
Wherein, ISTo preset short circuit protection and setting current value；
Work as Ie<I(t)≤IsWhen, then assert and overload fault is occurred by protective loop, control unit (B) produces overload current control and referred to
Order, while according to the online computation overload operating time of protection t of anti-time limit characteristic2, be then delayed overload protection actuation time t again2Afterwards
Overload current control instruction is sent into solid-state switch (C), solid-state switch (C) is entered line delay disjunction, wherein, IeFor electricity consumption
Circuit rated operational current；
As I (t)≤IeWhen, then assert and non-faulty current control instruction is produced by protective loop normal work, control unit (B), so
Non-faulty current control instruction is sent into solid-state switch (C) afterwards, solid-state switch (C) refers to according to non-faulty current control
Order makes solid-state switch (C) keep current on off state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710910858.5A CN107528290A (en) | 2017-09-29 | 2017-09-29 | A kind of inverse time lag current-limiting type electrical fire prevention and control device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710910858.5A CN107528290A (en) | 2017-09-29 | 2017-09-29 | A kind of inverse time lag current-limiting type electrical fire prevention and control device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107528290A true CN107528290A (en) | 2017-12-29 |
Family
ID=60684136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710910858.5A Pending CN107528290A (en) | 2017-09-29 | 2017-09-29 | A kind of inverse time lag current-limiting type electrical fire prevention and control device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107528290A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038517A (en) * | 2018-08-07 | 2018-12-18 | 西安华瑞网电科技股份有限公司 | A kind of online prevention and control device of single-phase insulated electric fire and method |
| CN109659921A (en) * | 2018-12-27 | 2019-04-19 | 惠科股份有限公司 | Over Current Protection System, method and display device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102983562A (en) * | 2012-12-14 | 2013-03-20 | 上海诚佳电子科技有限公司 | Current-limiting protector for electrical fire prevention |
| CN105552837A (en) * | 2016-01-20 | 2016-05-04 | 华北电力大学 | Differential protection method for partition inverse-time transformer by considering DC bias effects |
| CN106597945A (en) * | 2016-12-20 | 2017-04-26 | 中国航空工业集团公司雷华电子技术研究所 | Inverse time limit protection solid-state switch |
-
2017
- 2017-09-29 CN CN201710910858.5A patent/CN107528290A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102983562A (en) * | 2012-12-14 | 2013-03-20 | 上海诚佳电子科技有限公司 | Current-limiting protector for electrical fire prevention |
| CN105552837A (en) * | 2016-01-20 | 2016-05-04 | 华北电力大学 | Differential protection method for partition inverse-time transformer by considering DC bias effects |
| CN106597945A (en) * | 2016-12-20 | 2017-04-26 | 中国航空工业集团公司雷华电子技术研究所 | Inverse time limit protection solid-state switch |
Non-Patent Citations (1)
| Title |
|---|
| 贺家李 等: "《电力系统继电保护原理与实用技术》", 30 June 2009, 中国电力出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038517A (en) * | 2018-08-07 | 2018-12-18 | 西安华瑞网电科技股份有限公司 | A kind of online prevention and control device of single-phase insulated electric fire and method |
| CN109659921A (en) * | 2018-12-27 | 2019-04-19 | 惠科股份有限公司 | Over Current Protection System, method and display device |
| WO2020133578A1 (en) * | 2018-12-27 | 2020-07-02 | 惠科股份有限公司 | Overcurrent protection system and method, and display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104617571B (en) | A kind of electronic electric equipment over-voltage and over-current protector | |
| CN103715652B (en) | Surge protector back-up protection intelligence release unit | |
| CN103985617B (en) | A kind of Intelligent fuse | |
| CN102983562B (en) | Current-limiting protector for electrical fire prevention | |
| CN205123243U (en) | Lightning protection surge protector | |
| CN105226611B (en) | Short circuit/overload protecting circuit of single-phase transformer | |
| CN106415773B (en) | Reduce method, the purposes of circuit and control switch device of arc-flash projectile energy level | |
| CN103414167A (en) | State detection and protection method for circuit breaker opening and closing coil | |
| CN202159961U (en) | Ground wire safe voltage control system | |
| CN107528290A (en) | A kind of inverse time lag current-limiting type electrical fire prevention and control device and method | |
| CN105226607A (en) | A kind of extra-high voltage direct-current layer-specific access system 100Hz harmonic protection method | |
| Panetta | Design of arc flash protection system using solid state switch, photo detection, with parallel impedance | |
| CN104485635A (en) | Overcurrent protection circuit and overcurrent protection device | |
| CN205544257U (en) | From switching surge protector | |
| CN205067571U (en) | Voltage detection circuit | |
| CN204327466U (en) | Gas monitoring apparatus gas collection pump power supply circuits | |
| CN204189753U (en) | A kind of Intelligent fuse | |
| CN204012649U (en) | The earth leakage protective device of adjustable sensitivity | |
| CN206323120U (en) | High-power quick electric fire current-limiting protector | |
| CN207557431U (en) | Fuse switch melting fault monitoring device | |
| CN103490372A (en) | Singlechip-based leakage protector | |
| CN105811366B (en) | A kind of Remote Power Supply leakage protection circuit | |
| CN104143811B (en) | A kind of direct current leakage protective circuit | |
| CN207910447U (en) | A kind of active protection device for arc faults of switchgear | |
| CN206620061U (en) | A kind of common DC bus servo drive system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171229 |