CN203859338U - Power strip inhibiting surge voltage and current - Google Patents
Power strip inhibiting surge voltage and current Download PDFInfo
- Publication number
- CN203859338U CN203859338U CN201420253914.4U CN201420253914U CN203859338U CN 203859338 U CN203859338 U CN 203859338U CN 201420253914 U CN201420253914 U CN 201420253914U CN 203859338 U CN203859338 U CN 203859338U
- Authority
- CN
- China
- Prior art keywords
- winding
- power outlet
- accessory power
- resistance
- zero line
- 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.)
- Active
Links
Abstract
The utility model discloses a power strip inhibiting a surge voltage and current, and the power strip comprises a housing, an output socket, an input line, a current overload relay, and a surge-inhibiting module. The input line comprises a live line, a zero line, and a ground wire. The surge-inhibiting module comprises a piezoresistor of a thermal protection type, a first piezoresistor, a second piezoresistor, a ceramic gas discharge tube, and a common-mode choke coil. The live line is connected with the input end of a first winding of the common-mode choke coil through the series current overload relay, wherein the output end of the first winding is connected with a live line end of the output socket. The zero line is connected with the zero line end of the output socket through a second winding of the common-mode choke coil. The ground wire is connected with the ground wire end of the output socket. The piezoresistor of the thermal protection type is in parallel connection between the live line and the zero line. The first piezoresistor and the ceramic gas discharge tube are in series connection between the live line and the ground wire. The second piezoresistor and the ceramic gas discharge tube are in series connection between the zero line and the ground wire. The first piezoresistor and the ceramic gas discharge tube are in series connection with a burst surge voltage absorption circuit disposed between the live line and the ground wire, and the second piezoresistor and the ceramic gas discharge tube are in series connection with a burst surge voltage absorption circuit disposed between the zero line and the ground wire. A surge voltage can be inhibited.
Description
Technical field
The utility model belongs to the insert row of protecting power consumption equipment, is specially a kind of insert row that suppresses surge voltage and electric current.
Background technology
Since 20 middle of century, the fast development of electronic technology, makes the progress of human society and civilization go up a new step.We live in the electric epoch, the application of electric energy is very extensive, it is in industry such as household electrical appliance, communication, computer and information equipment, electric tool, Aeronautics and Astronautics, automatic control, the measuring instrument of the every field such as science and technology, medical science, and use more and morely in agricultural, communications and transportation, national defense construction, scientific research, power electronic system and daily life, obtained extensively universal, application, goed deep in huge numbers of families.
Electronic product or system universal, although brought facility to people's life, because of casualties, property loss that Lightning Disaster and the system failure cause also countless.Extensive application along with electronics, the integrated equipment of microelectronics, LEMP and lightning overvoltage, and the electric power system surge voltage or the electric current that cause while there is short trouble, jumbo and big-block engine electrical source exchange, the system causing and the damage of equipment are more and more.In order to reduce this damage and loss, not only to solve and carry out the Lightning Protection of building and electronic information, and every family and collective will further carry out power supply protection, suppress surge and the instantaneous overvoltage on electric power system and circuit, the overcurrent of releasing on circuit.Therefore; use inhibition surge insert row to become one of important channel of protection power consumption equipment and personal safety as well as the property safety; but the function singleness of existing inhibition surge insert row; only adopt single piezo-resistance to realize protection; but piezo-resistance is easy aging electronic devices and components; through repeatedly bearing after surge voltage; pressure sensitive voltage can reduce; leakage current can increase; normal this work is gone down, and not only affect efficiency, and piezo-resistance is generated heat for a long time; can cause pressure responsive resistor failure even breakdown and catch fire, security reliability is low.
Utility model content
For problems of the prior art, the utility model provides a kind of can all realize inhibition to surge voltage and electric current, and can avoid latent fire hazard, the inhibition surge voltage of protection power consumption equipment and the insert row of electric current.
The utility model is to be achieved through the following technical solutions:
An insert row that suppresses surge voltage and electric current, comprises housing, and is arranged on the accessory power outlet on housing, the input line arranging through housing, and be arranged on the current overload relay OC-Relay in housing and suppress surge module; Input line comprises live wire L, zero line N and ground wire PE, and described inhibition surge module comprises hot protection type piezo-resistance TMOV, the first piezo-resistance MOV1, the second piezo-resistance MOV2, ceramic gas discharge tube GDT and common mode choke Common Chock; Live wire L is connected with the input of common mode choke Common Chock the first winding through the current overload relay OC-Relay of series connection, and the output of the first winding is connected respectively to the live wire end of accessory power outlet; Zero line N is connected respectively to the zero line side of accessory power outlet through common mode choke Common Chock the second winding; Ground wire PE is connected respectively to the ground terminal of accessory power outlet; One end of hot protection type piezo-resistance TMOV is connected with the input of the first winding with current overload relay OC-Relay output respectively, and the other end is connected with the second winding input with zero line; One end of the first piezo-resistance MOV1 is connected with the input of the first winding with current overload relay OC-Relay output respectively; The other end is connected with the second winding input with zero line through the second piezo-resistance MOV2 of series connection respectively, through ceramic gas discharge tube GDT, is connected with ground wire.
Preferably, between the live wire end of the output of the first winding and accessory power outlet, be provided with switch.
Further, between the live wire end of switch and accessory power outlet, be provided with fuse.
Further, switch adopts and has LED light switch; The switch contact end with LED light switch is connected with the first winding output, and LED cathode terminal is connected with the zero line side of the second winding output and accessory power outlet respectively through the resistance of series connection, and LED anode tap is connected with the live wire end of accessory power outlet.
Further again, between the live wire end of LED anode tap and accessory power outlet, be provided with fuse.
Preferably, spray point is placed respectively at each winding two ends of common mode choke Common Chock, and two relative parts of spray point of each winding arrange respectively indentation.
Compared with prior art, the utlity model has following useful technique effect:
The utility model is by hot protection type piezo-resistance in parallel between live wire and zero line, for the surge voltage happening suddenly between live wire and zero line provides path, suppress differential mode surge voltage, avoided using single piezo-resistance even to burn due to the aging excess Temperature causing; By series connection, be arranged on the first piezo-resistance and the ceramic gas discharge tube between live wire and ground wire, in parallel with the path of the absorption burst surge voltage existing between live wire and ground wire; By series connection, be arranged on the second piezo-resistance and the ceramic gas discharge tube between zero line and ground wire, in parallel with the path of the absorption burst surge voltage existing between zero line and ground wire; Not only suppressed surge voltage, and there is not leakage current in piezo-resistance when normal that makes to power, avoided piezo-resistance excess Temperature even to burn yet; Recycling common mode choke plays the effect of surge current suppression and decoupling; by current overload relay, play and when there is the large electric current of surge, cut off circuit function; and then realize and suppress surge voltage and electric current; the object of protection rear end power consumption equipment; be particularly suitable for frequent area occurring and often occurring using in large surge voltage and current circuit simple in structure, complete function at thunder and lightning.
Further, by being arranged on the switch between the output of the first winding and the live wire end of accessory power outlet, can realize the independence of accessory power outlet is controlled, easy to use, and utilize the fuse arranging can occur at circuit the situation incision deenergizing of overload or short circuit, guarantee the safety of rear end power consumption equipment.
Further, utilize the LED light arranging on switch, can make clearly indication to socket power on/off, improved applicability and fail safe.
Further, by two relative parts of spray point of each winding of common mode choke are placed to zigzag, provide the discharge loop of responding to large voltage, strengthened reliability and the fail safe of its use.
Accompanying drawing explanation
Fig. 1 is the structure principle chart described in the utility model example.
Fig. 2 is the principle state diagram of insert row when normal of the voltage and current described in the utility model example.
Fig. 3 is the principle state diagram of insert row when abnormal of the voltage and current described in the utility model example.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
The utility model as shown in Figure 1, an insert row that suppresses surge voltage and electric current, comprises housing, and is arranged on the accessory power outlet on housing, the input line arranging through housing, and be arranged on the current overload relay OC-Relay in housing and suppress surge module; Input line comprises live wire L, zero line N and ground wire PE, suppresses surge module and comprises hot protection type piezo-resistance TMOV, the first piezo-resistance MOV1, the second piezo-resistance MOV2, ceramic gas discharge tube GDT and common mode choke Common Chock; Live wire L is connected with the input of common mode choke Common Chock the first winding through the current overload relay OC-Relay of series connection, and the output of the first winding is connected respectively to the live wire end of accessory power outlet; Zero line N is connected respectively to the zero line side of accessory power outlet through common mode choke Common Chock the second winding; Ground wire PE is connected respectively to the ground terminal of accessory power outlet; One end of hot protection type piezo-resistance TMOV is connected with the input of the first winding with current overload relay OC-Relay output respectively, and the other end is connected with the second winding input with zero line; One end of the first piezo-resistance MOV1 is connected with the input of the first winding with current overload relay OC-Relay output respectively; The other end is connected with the second winding input with zero line through the second piezo-resistance MOV2 of series connection respectively, through ceramic gas discharge tube GDT, is connected with ground wire.In this preferred embodiment, between the live wire end of the output of the first winding and accessory power outlet, be provided with switch and fuse; Wherein, switch adopts and has LED light switch; The switch contact end with LED light switch is connected with the first winding output, and LED cathode terminal is connected with the zero line side of the second winding output and accessory power outlet respectively through the resistance of series connection, and LED anode tap is connected with the live wire end of accessory power outlet; Fuse is arranged between the live wire end of LED anode tap and accessory power outlet.When this electric circuit constitute is on printing board PCB, spray point is placed respectively at each winding two ends of common mode choke Common Chock, and two relative parts of spray point of each winding arrange respectively indentation.
The utility model does not exist over rated voltage and electric current under normal circumstances in circuit, the course of work of the signal of telecommunication as shown by the arrows in Figure 2, power network signal within specification is by live wire L and the zero line N of input line, current overload relay OC-Relay normally, the normal voltage signal transmitting is lower than the pressure sensitive voltage of piezo-resistance, therefore be connected in parallel on the hot protection type piezo-resistance TMOV between live wire L and zero line N, the first piezo-resistance MOV1 between live wire L and ground wire PE, and the second piezo-resistance MOV2 between zero line N and ground wire PE presents high-impedance state, these three routes that contain piezo-resistance are open circuit, almost do not have electric current to pass through, the signal of telecommunication from electrical network passes through to arrive on the corresponding winding of common mode choke Common Chock completely, the input of the common mode inductance that namely the first winding and the second winding form, and inductance does not have inhibitory action for low frequency signal, therefore lead directly to.Normal power network signal now has been transferred to the switch front end of each socket completely, when a way switch is connected, just there is normal line voltage in the accessory power outlet being attached thereto, be connected in parallel on the LED loop normal power-up of socket L end and N end, this socket of the bright expression of LED lamp has been connected line voltage, can the power supply of bio-occlusion power consumption equipment.
In this preferred embodiment, the accessory power outlet of take adopts the first accessory power outlet Socket1, the second accessory power outlet Socket2 and the 3rd accessory power outlet Socket3 to describe as example, and the live wire end of the first accessory power outlet Socket1, the second accessory power outlet Socket2 and the 3rd accessory power outlet Socket3 has LED light switch LED-SW1, second through the first fuse Fuse1, the second fuse Fuse2 and the 3rd fuse Fuse3 and first respectively and has the LED anode tap that LED light switch LED-SW2 and the 3rd has LED light switch LED-SW3 and be connected; First has LED light switch LED-SW1, second has the resistance terminal that LED light switch LED-SW2 and the 3rd has LED light switch LED-SW3 and is connected with the zero line side of the 3rd accessory power outlet Socket3 with corresponding the first accessory power outlet Socket1, the second accessory power outlet Socket2 with the second winding output of common mode choke respectively; The ground terminal of the first accessory power outlet Socket1, the second accessory power outlet Socket2 and the 3rd accessory power outlet Socket3 is connected with ceramic gas discharge tube with ground wire respectively.
The utility model exists under the abnormal conditions of surge voltage and electric current in circuit, the course of work of the signal of telecommunication is as shown in the arrow in Fig. 3, while there is the surge voltage causing while switching due to the main equipment that is coupled or is connected with electrical network in electrical network, if this voltage peak surpasses the pressure sensitive voltage of piezo-resistance, therefore be connected in parallel between live wire L and zero line N, between live wire L and ground wire PE, and the piezo-resistance between zero line N and live wire PE presents low resistance state, these three routes that contain piezo-resistance are short circuits, thereby bypass this surge voltage, protection back-end circuit; If this surge voltage is very large, cause loop current now to surpass the current rating of current overload relay, current overload relay will open circuit, protection back-end circuit.By being connected in parallel on the hot protection type piezo-resistance between live wire L and zero line N, its electric signal transmission is shown in solid arrow, and the loop that is connected in parallel on the second piezo-resistance MOV2 between the first piezo-resistance MOV1, zero line N and ground wire PE between live wire L and the ground wire PE ceramic gas discharge tube of all connecting respectively, its electric signal transmission is shown in empty arrow, the effect of hot protection type piezo-resistance TMOV is to make can from circuit, depart from rapidly after pressure responsive resistor failure, effectively avoids latent fire hazard; Piezo-resistance loop series connection ceramic gas discharge tube, object is for piezo-resistance loop is under normal working voltage, does not have leakage current, not only raises the efficiency but also protective circuit.In electrical network, exist while there is common mode surge current in high-frequency harmonic or circuit, suppressed during by common mode choke, guarantee to offer accessory power outlet and the normal voltage and current of power consumption equipment.Fuse in circuit is all in order to cut off rapidly circuit when abnormal or large electric current appear in circuit, to protect power consumption equipment and avoid latent fire hazard.
Finally explanation is, above example is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from aim and the scope of the technical program, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (6)
1. an insert row that suppresses surge voltage and electric current, it is characterized in that, comprise housing, and be arranged on the accessory power outlet on housing, the input line arranging through housing, and be arranged on the current overload relay (OC-Relay) in housing and suppress surge module; Described input line comprises live wire (L), zero line (N) and ground wire (PE), and described inhibition surge module comprises hot protection type piezo-resistance (TMOV), the first piezo-resistance (MOV1), the second piezo-resistance (MOV2), ceramic gas discharge tube (GDT) and common mode choke (Common Chock);
Live wire (L) is connected with the input of common mode choke (Common Chock) the first winding through the current overload relay (OC-Relay) of series connection, and the output of the first winding is connected respectively to the live wire end of accessory power outlet; Zero line (N) is connected respectively to the zero line side of accessory power outlet through common mode choke (Common Chock) the second winding; Ground wire (PE) is connected respectively to the ground terminal of accessory power outlet;
One end of hot protection type piezo-resistance (TMOV) is connected with the input of the first winding with current overload relay (OC-Relay) output respectively, and the other end is connected with the second winding input with zero line;
One end of the first piezo-resistance (MOV1) is connected with the input of the first winding with current overload relay (OC-Relay) output respectively; The other end is connected with the second winding input with zero line through second piezo-resistance (MOV2) of series connection respectively, through ceramic gas discharge tube (GDT), is connected with ground wire.
2. a kind of insert row that suppresses surge voltage and electric current according to claim 1, is characterized in that, between the live wire end of the output of the first winding and accessory power outlet, is provided with switch.
3. a kind of insert row that suppresses surge voltage and electric current according to claim 2, is characterized in that, between the live wire end of switch and accessory power outlet, is provided with fuse.
4. a kind of insert row that suppresses surge voltage and electric current according to claim 2, is characterized in that, described switch adopts has LED light switch; The switch contact end with LED light switch is connected with the first winding output, and LED cathode terminal is connected with the zero line side of the second winding output and accessory power outlet respectively through the resistance of series connection, and LED anode tap is connected with the live wire end of accessory power outlet.
5. a kind of insert row that suppresses surge voltage and electric current according to claim 4, is characterized in that, between the live wire end of LED anode tap and accessory power outlet, is provided with fuse.
6. a kind of insert row that suppresses surge voltage and electric current according to claim 1, it is characterized in that, spray point is placed respectively at each winding two ends of common mode choke (Common Chock), and two relative parts of spray point of each winding arrange respectively indentation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420253914.4U CN203859338U (en) | 2014-05-16 | 2014-05-16 | Power strip inhibiting surge voltage and current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420253914.4U CN203859338U (en) | 2014-05-16 | 2014-05-16 | Power strip inhibiting surge voltage and current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203859338U true CN203859338U (en) | 2014-10-01 |
Family
ID=51609179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420253914.4U Active CN203859338U (en) | 2014-05-16 | 2014-05-16 | Power strip inhibiting surge voltage and current |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203859338U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104682344A (en) * | 2015-03-30 | 2015-06-03 | 威海人合机电股份有限公司 | Electrical circuit fire early-warning protector |
| CN105186480A (en) * | 2015-10-10 | 2015-12-23 | 南京赛康交通安全科技股份有限公司 | Lightning protection circuit |
| CN106685031A (en) * | 2017-02-24 | 2017-05-17 | 国网上海市电力公司 | Power input protection rectifying circuit of mobile power bank battery management system |
| WO2021052205A1 (en) * | 2019-09-17 | 2021-03-25 | 青岛海尔空调电子有限公司 | Surge absorption circuit for single-phase air conditioning system |
-
2014
- 2014-05-16 CN CN201420253914.4U patent/CN203859338U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104682344A (en) * | 2015-03-30 | 2015-06-03 | 威海人合机电股份有限公司 | Electrical circuit fire early-warning protector |
| CN104682344B (en) * | 2015-03-30 | 2017-09-15 | 威海人合机电股份有限公司 | A kind of electric wiring catches fire early warning protector |
| CN105186480A (en) * | 2015-10-10 | 2015-12-23 | 南京赛康交通安全科技股份有限公司 | Lightning protection circuit |
| CN106685031A (en) * | 2017-02-24 | 2017-05-17 | 国网上海市电力公司 | Power input protection rectifying circuit of mobile power bank battery management system |
| CN106685031B (en) * | 2017-02-24 | 2023-07-07 | 国网上海市电力公司 | Power input protection rectifying circuit of mobile precious battery management system charges |
| WO2021052205A1 (en) * | 2019-09-17 | 2021-03-25 | 青岛海尔空调电子有限公司 | Surge absorption circuit for single-phase air conditioning system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203589720U (en) | LED optical engine lightning protection apparatus | |
| CN203859338U (en) | Power strip inhibiting surge voltage and current | |
| CA2568003A1 (en) | Surge protection device | |
| CN104966953A (en) | Multifunctional safety socket set | |
| CN101752858B (en) | Multi-gap metal gas discharge tube power supply over-voltage protection module | |
| CN202197094U (en) | Power transmission line intelligent fault monitoring coupling power supply protective device | |
| CN103872658A (en) | Multifunctional self-recovery over-voltage and under-voltage protector | |
| CN201820968U (en) | Power socket module with functions of overcurrent, overvoltage and over-temperature protection | |
| CN206117149U (en) | Surge protection circuit and have surge protection ware of this surge protection circuit | |
| CN201594732U (en) | Lightning-protection anti-interference filter | |
| CN208849450U (en) | A kind of 485 siganl thunder-proof devices | |
| CN204732863U (en) | There is the surge protection device of double protection functions | |
| CN204030571U (en) | The AC and DC power supply lightning protection device of the wide-voltage range of the large low residual voltage of discharge capacity | |
| CN203039363U (en) | Three-phase surge protector | |
| CN215498269U (en) | Switching power supply lightning protection circuit and switching power supply | |
| CN202495803U (en) | Isolation power supply cabinet used in medical treatment II type place | |
| CN208589776U (en) | A kind of overcurrent overvoltage protection device | |
| CN207967934U (en) | A kind of surge protection circuit and device | |
| CN103631163A (en) | Switch circuit for alternating current power supply | |
| CN206211532U (en) | Lightning protection device | |
| CN204144932U (en) | A kind of novel surge protection device | |
| CN202978261U (en) | Double-channel surge protector | |
| CN106099840A (en) | The protection circuit of a kind of power circuit and power circuit | |
| CN208874284U (en) | A kind of resistance-capacitance depressurization protection circuit | |
| CN109089366A (en) | Electric ballast with surge protection circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |