CN202888817U - Novel surge protection device (SPD) - Google Patents
Novel surge protection device (SPD) Download PDFInfo
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- CN202888817U CN202888817U CN 201220551622 CN201220551622U CN202888817U CN 202888817 U CN202888817 U CN 202888817U CN 201220551622 CN201220551622 CN 201220551622 CN 201220551622 U CN201220551622 U CN 201220551622U CN 202888817 U CN202888817 U CN 202888817U
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- current sensor
- spd
- novel electric
- surge protector
- lightning protection
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- 238000001514 detection method Methods 0.000 claims abstract description 5
- 230000001012 protector Effects 0.000 claims description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 5
- 239000003381 stabilizer Substances 0.000 claims description 2
- 230000037361 pathway Effects 0.000 claims 1
- 230000001681 protective effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010001541 Akinesia Diseases 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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Abstract
The utility model relates to a novel surge protection device (SPD). The SPD mainly comprises a breaking switch, a current sensor 1, a current sensor 2, a detection drive unit, a breaking actuator, an inductor and a lightning protection device, wherein the lightning protection device is connected with a breaking switch in series; the detection drive unit in the SPD is used for detecting the leak current state information in the line according to the current sensor 1 and then driving the breaking actuator to drive the breaking switch to act to enable the SPD to break away from a protection line; and the current sensor 2 is used for detecting the power frequency current in the line and directly driving the breaking actuator to drive the breaking switch to cut off an SPD access. The SPD is convenient to install, breaks away from the blind zone of the backup protection mode of the existing SPD and has strong reliability.
Description
Technical field
The utility model belongs to the surge protection technical field of electronic electric equipment.
Background technology
Thunder and lightning is a kind of special weather phenomenon of aloft being discharged and being caused by charged cloud.Thunder and lightning is the major reason that causes electronic equipment to damage, and it threatens the safe and stable operation of the every field electronic informations such as building, railway, civil aviaton, communication, industry control, military affairs.At metallic circuits such as the power line that is connected with electronic equipment, holding wire and control lines surge protector being installed is one of important measures of lightning protection.Surge protector has been widely used in various fields, has important effect in lightning protection.The quality of its state then directly affects its lightning protection effect, thereby the safety of protection equipment is brought hidden danger.
Present stage SPD has heat protection and two kinds of protective devices of overcurrent protection (internal or external) in use usually; thermel protection device is used for protecting the deteriorated heating of lightning protection component; overcurrent protective device is used for preventing the lightning protection component puncture short that transient over-current or overvoltage cause; simultaneously overcurrent protection is as a kind of backup protection mode of heat protection, so can play effective protective action in most of occasions.
But because the heat conduction is a relatively slow process; the sensitivity of thermel protection device is low; still can play effective protection for slow temperature-rise period; but for low (in) in the pressing system because the steep temperature rise situation that causes under the sustained overvoltage state; heat is protected trip gear this process of in time perception and is not moved; cause lightning protection component breakdown; power current enters the SPD circuit; when this power current value does not reach the startup value of overcurrent protective device; overcurrent protective device can not move yet, thereby causes SPD on fire.
In sum, there is serious protection blind area in existing SPD in the protection angle, in this zone, and all akinesias of thermel protection device and overcurrent protective device, thus serious potential safety hazard appears.
The utility model content
In order effectively to solve the above prior-art problems, the utility model proposes a kind of can be easy for installation and the Novel electric surge protector that is used for power-supply system of dependable performance.
The utility model is by the following technical solutions: the utility model is the surge protector for the power electronic circuits system, and described surge protector mainly comprises section breaker, current sensor 1, current sensor 2, detects driver element, disjunction actuator, inductance and lightning protection component.Described lightning protection component and section breaker series connection detect driver element and according to the current information that described current sensor 1 detects disjunction actuator are driven, and drive the section breaker action, and SPD is broken away from from the protection circuit; Current sensor 2 can make by the current signal of sensing iron core generation magnetic force in the loop, and directly drive disjunction actuator and drive the section breaker action, and then disjunction SPD path.
Described section breaker, current sensor 1, current sensor 2, detection driver element, disjunction actuator, inductance and lightning protection component all are arranged in the housing, are the Novel electric surge protectors of an integral body.
Of the present utility model being characterised in that:
1. this Novel electric surge protector has been abandoned the unsteadiness of thermel protection device and the protection blind area of overcurrent protective device;
This Novel electric surge protector with lightning protection component, section breaker, current sensor 1, current sensor 2, detect driver element, disjunction actuator, inductance is integrated and one, be loaded on housing, can satisfy power consumption equipment to the requirement of surge protector discharge capacity, response time and three indexs of voltage protection level, strengthen the reliability of equipment;
3. when surge current flows through, detecting driver element and inductance has inhibit feature to fast change pulse, guarantees that disjunction actuator is failure to actuate, the SPD surge current of normally releasing;
4. when lightning protection component inefficacy short circuit, current sensor 2 is sensed the power current that flows through surge protector, produces magnetic force by the iron core in the loop, makes the action of disjunction actuator, disconnects the surge protector path;
5. when the surge protector leakage current surpassed the rated current value, current sensor 1 was sensed the power frequency leakage current that flows through surge protector, also can make the action of disjunction actuator, disconnected the surge protector path.
Description of drawings
Fig. 1 is the first example structure schematic diagram of the present utility model.
Fig. 2 is the second example structure schematic diagram of the present utility model.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified:
As shown in Figure 1, the 1st, section breaker, the 2nd, current sensor 1,3rd, current sensor 2,4th, lightning protection component, the 5th, inductance, the 6th, disjunction actuator, the 7th, detect driver element, the 8th, shell, the 9th, link gear, the 10th, spring.
The utility model is the surge protector for the power electronic circuits system, and described surge protector mainly comprises section breaker, current sensor 1, current sensor 2, detects driver element, disjunction actuator, inductance and lightning protection component.
Described current sensor 1 (2) can detect the power frequency leakage current that brings because lightning protection component is deteriorated.When current sensor 1 (2) detects this electric current and output current signal, detect driver element (7) and actuating signal can be sent disjunction actuator (6), drive section breaker (1) and disconnect, thereby SPD is separated with circuit.
Described current sensor 2 (3) can detect the power current that lost efficacy and flow through because of lightning protection component.When current sensor 2 (3) was sensed this electric current, the iron core in the loop directly drove disjunction actuator (6) action because the electromagnet principle produces magnetic force, and section breaker is opened, and cuts off the SPD path.
String has inductance (5) in the loop of described current sensor 2 (3), and it has inhibit feature to fast change pulse, guarantees that disjunction actuator is failure to actuate, lightning protection component (4) surge current of normally releasing.
Described detection driver element (7) can be comprised of devices such as resistance, inductance, electric capacity, voltage-stabiliser tube, diode, wiring boards, it can detect the information of current sensor 1 (2) output, drive disjunction actuator (6), thereby make section breaker (1) action.When the thunder and lightning surge by the time, it has inhibit feature to fast change pulse, guarantees that disjunction actuator is failure to actuate, lightning protection component (4) surge current of normally releasing.
Described disjunction actuator (6) is the principle by electromagnet, under the effect of iron core at electric current, produce magnetic force, thereby make the armature movement of disjunction actuator (5), and drive section breaker (1), the SPD in the line disconnection by link gear (9).
Described section breaker (1) is after disjunction actuator (6) action, and the pulling force by spring (10) can make circuit disconnect.
Claims (9)
1. Novel electric surge protector is characterized in that: with lightning protection component, section breaker, current sensor 1, current sensor 2, detect driver element, disjunction actuator, inductance is integrated and one, is loaded on housing.
2. a kind of Novel electric surge protector according to claim 1 is characterized in that: the pattern with a kind of accessory pathway conduction, control replaces heat protection and overcurrent protection pattern.
3. a kind of Novel electric surge protector according to claim 1, it is characterized in that: section breaker and lightning protection component are connected in series.
4. according to claim 1,3 or 4 described Novel electric surge protectors; it is characterized in that: by the leakage current situation on the current sensor 1 detection lightning protection component path; and conduct to detecting driver element, detect driver element and send the action of signal controlling disjunction actuator, pull open section breaker.
5. according to claim 1,3 or 4 described Novel electric surge protectors, it is characterized in that: detect power current situation on the lightning protection component paths by current sensor 2, make the iron core in the loop produce magnetic force, directly make the action of disjunction actuator, pull open section breaker.
6. Novel electric surge protector according to claim 1 is characterized in that: detecting driver element can be comprised of devices such as resistance, inductance, electric capacity, voltage-stabiliser tube, diode, wiring boards.
7. Novel electric surge protector according to claim 1 is characterized in that: detect driver element and inductance and can suppress surge and passes through, stop the action of disjunction actuator, guarantee that surge normally releases.
8. Novel electric surge protector according to claim 1, it is characterized in that: disjunction actuator carries out work by principle and the link gear of electromagnet.
9. Novel electric surge protector according to claim 1 is characterized in that: embed the set screws component in the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220551622 CN202888817U (en) | 2012-10-24 | 2012-10-24 | Novel surge protection device (SPD) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220551622 CN202888817U (en) | 2012-10-24 | 2012-10-24 | Novel surge protection device (SPD) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202888817U true CN202888817U (en) | 2013-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220551622 Expired - Lifetime CN202888817U (en) | 2012-10-24 | 2012-10-24 | Novel surge protection device (SPD) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202888817U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474952A (en) * | 2013-09-24 | 2013-12-25 | 武汉微创元电子科技有限责任公司 | Short-circuit protection device for power frequency current and lightning surge automatic selection channel |
| CN103779854A (en) * | 2012-10-24 | 2014-05-07 | 孙巍巍 | Novel surge protection device |
| CN106451335A (en) * | 2016-10-12 | 2017-02-22 | 武汉爱劳高科技有限责任公司 | SPD (surge protective device) back-up protector based on electromagnetic differential motion |
-
2012
- 2012-10-24 CN CN 201220551622 patent/CN202888817U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103779854A (en) * | 2012-10-24 | 2014-05-07 | 孙巍巍 | Novel surge protection device |
| CN103474952A (en) * | 2013-09-24 | 2013-12-25 | 武汉微创元电子科技有限责任公司 | Short-circuit protection device for power frequency current and lightning surge automatic selection channel |
| CN106451335A (en) * | 2016-10-12 | 2017-02-22 | 武汉爱劳高科技有限责任公司 | SPD (surge protective device) back-up protector based on electromagnetic differential motion |
| CN106451335B (en) * | 2016-10-12 | 2018-07-31 | 武汉爱劳高科技有限责任公司 | SPD back-up protection devices based on electromagnetic differential |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Tianjin city Weitaining Electronic Technology Co.,Ltd. Assignor: Sun Weiwei Contract record no.: 2015120000036 Denomination of utility model: Novel surge protection device Granted publication date: 20130417 License type: Exclusive License Record date: 20150713 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Tianjin city Weitaining Electronic Technology Co.,Ltd. Assignor: Sun Weiwei Contract record no.: 2015120000036 Date of cancellation: 20160518 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160623 Address after: 300384 Tianjin Huayuan Industrial Park Wuhua Avenue No. 8 Kaifa building B block three layer Patentee after: Tianjin city Weitaining Electronic Technology Co.,Ltd. Address before: 300384 Tianjin city Nankai District New Technology Industrial Park Huayuan Wuhua Avenue No. 8 Kaifa building B block three layer Patentee before: Sun Weiwei |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130417 |
|
| CX01 | Expiry of patent term | ||
| DD01 | Delivery of document by public notice |
Addressee: Yao Ye Document name: Notice of Expiration and Termination of Patent Right |
|
| DD01 | Delivery of document by public notice |