CN202633929U - Surge protection device - Google Patents
Surge protection device Download PDFInfo
- Publication number
- CN202633929U CN202633929U CN 201220153155 CN201220153155U CN202633929U CN 202633929 U CN202633929 U CN 202633929U CN 201220153155 CN201220153155 CN 201220153155 CN 201220153155 U CN201220153155 U CN 201220153155U CN 202633929 U CN202633929 U CN 202633929U
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- Prior art keywords
- surge protection
- surge
- protector
- protection device
- protection module
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- Expired - Fee Related
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Abstract
The utility model discloses a surge protection device which is in parallel connection with an electric device to be protected through wires; the wires comprise phase wires, a center wire and a grounding wire. The device concretely comprises a surge protection module arranged between the phase wires and the center wire and a first surge protector arranged between the center wire and the grounding wire. The surge protection module comprises a second surge protector, a status indicator used for indicating operation states of the second surge protector and an over-current protector used for protecting the second surge protector. The surge protection device and the electric device to be protected are in parallel connection through wires so as to minimize wiring; when lightning current occurs, residual voltage is small and lightning protection effects are good; furtherly the surge protection device employs thermal and electric double insurance fusing design, thereby enhancing operation security of the surge protector and preventing generation of fire hazards.
Description
Technical field
The utility model relates to the backup protection field, relates in particular to a kind of surge protection device with backup protection function.
Background technology
Along with global warming; Frequency that extreme weather climatic events such as strong thunder and lightning take place and intensity all strengthen to some extent, and thunder and lightning also produces material impact to electromagnetic environment except that the lives and properties to the mankind cause great harm; In the threat of electromagnetic environment, thunder discharge is most important interference source.
Along with rolling up of urban skyscraper, the rapid growth of various electronic information technology equipment number of applications, great changes have taken place in urban electromagnetic environment, and thunder and lightning punctures the reduced distances of air, and lightning protection facility is more incomplete to be built thunderstruck probability and increases; Simultaneously, be accompanied by technological progress, the integrated level of Information Technology Equipment is increasingly high, the ability of anti-electromagnetic interference and attack on the contrary worse and worse, thunder and lightning and the artificial electromagnetic environment harm that produces are on the rise.Surge Protective Device (SPD), Surge Protector has another name called surge protector, lightning protection device, lightning arrester, is used to protect power consumption equipment to exempt from Lightning Electromagnetic Pulse or switching overvoltage destruction.(RCD) be a kind of protective device of leakage current.
The different statistic of classifications of impaired object from nearly 10 years city thunder calamities; What the loss that thunder and lightning brings was the most serious is microelectronic device; Secondly ratio is that 25.5%, the three of power equipment is family expenses and 22.2% of office electrical equipment up to 35.6%; These electric power, electronic equipment account for 83.4% of sum; This explanation is along with Chinese society modernization, informationalized promotion, and the harm of indirect lightning strike is increasing, and the threat that computer, light current information system, broadcasting telecommunications, watch-dog, power equipment, electrical equipment commonly used etc. receive indirect lightning strike has surpassed building, these objects that threatened by direct stroke of trees.Theoretically, as long as the place of electricity consumption just needs surge protector.Surge protector has been widely used in industries such as building, communication, security protection, finance, automation, traffic, electric power, and market prospects are wide.
At present, existing lightning protection product, backup protection equipment such as fuse, circuit breaker, RCD (residual current device; And SPD (surge protector Residual Current Device) etc.; Surge Protective Device) separate, and these external device (ED)s do not have relevant surging technology performance index, when selecting for use, often cause the not adaptive problem of this performance aspect two; Further will reduce fail safe and protectiveness in the surge protector use; In addition, be subject to the space during actual installation, and its wiring is complicated.
The utility model content
The technical problem that the utility model will solve is, to prior art potential safety hazard and the complicated defective of wiring, provides a kind of safe and reduce the surge protection device of wiring.
The utility model solves the technical scheme that its technical problem adopted: a kind of surge protection device is provided, and itself and electric device to be protected are connected in parallel through electric wire; Said electric wire comprises phase line, center line and ground wire; Said device specifically is included in surge protection module that is provided with between said phase line and the said center line and first surge protector that between said center line and said ground wire, is provided with, and said surge protection module comprises second surge protector, be used to indicate positioning indicator and the overcurrent protector that is used to protect said second surge protector of the operating state of said second surge protector.
Preferably, said surge protector is released to the electric parameter that produces surge and/or is suppressed, and said electric parameter comprises electric current and voltage.
Preferably, said surge protector comprises Thermal Cutoffs and the piezo-resistance that connects successively.
Preferably, said Thermal Cutoffs is from the recovery type.
Preferably, the temperature threshold values of said Thermal Cutoffs is 120 ℃.
Preferably, said positioning indicator comprises warning lamp.
Preferably, the threshold voltage of said piezo-resistance is 320V.
Preferably, said phase line comprises first phase line, second phase line and third phase line.
Preferably, said surge protection module comprises the first surge protection module, the second surge protection module and the 3rd surge protection module; Wherein, the said first surge protection module is located between said first phase line and the said center line, and the said second surge protection module is located between said second phase line and the said center line, and said the 3rd surge protection module is located between said third phase line and the said center line.
Implement the technical scheme of the utility model, have following beneficial effect: surge protection device and electric device to be protected are connected in parallel through electric wire, thereby have reduced wiring, make when lightning current takes place, and residual voltage is little and lightning protection is effective; In addition, this surge protection device adopts heat, electric dual fail-safe fusing design, thereby has strengthened the fail safe of surge protector work, takes precautions against the generation of fire.
Description of drawings
To combine accompanying drawing and embodiment that the utility model is described further below, in the accompanying drawing:
Fig. 1 is the structural representation of the utility model surge protection device and device to be protected;
Fig. 2 is the structural representation of the utility model surge protection device.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Need to prove that the shell of the surge protection device in the present embodiment adopts the insulation fire proofing material, the circuit board of enclosure interior, components and parts and connection cable adopt epoxy resin chemistry encapsulation process respectively, repeat no more at this.
See also Fig. 1; Fig. 1 is the structural representation of the utility model surge protection device and device to be protected, and is as shown in Figure 1, and surge protection device 100 and electric device to be protected 200 are connected in parallel through electric wire; In the present embodiment; Said electric wire comprises phase line L, center line N and ground wire PE, and wherein, this phase line L comprises first phase line, second phase line and third phase line.
Please combine with reference to figure 2; Fig. 2 is the structural representation of the utility model surge protection device; As shown in Figure 2; Surge protection device 100 specifically is included in surge protection module that is provided with between said phase line L and the said center line N and first surge protector 2 that between said center line N and said ground wire PE, is provided with, and said surge protection module comprises second surge protector 4, be used to indicate positioning indicator 3 and the overcurrent protector 1 that is used to protect said second surge protector 4 of the operating state of said second surge protector 4.In the present embodiment, the quantity of said surge protection module is 3, is respectively the first surge protection module 101, the second surge protection module 102 and the 3rd surge protection module 103; Wherein, The said first surge protection module 101 is located between said first phase line and the said center line; The said second surge protection module 102 is located between said second phase line and the said center line, and said the 3rd surge protection module 103 is located between said third phase line and the said center line.
Should be noted that overcurrent protector 1 presents low-resistance under low continuous current or the shape 8/20us surge current impact of induction Leibo, be equivalent to short circuit, do not influence the operate as normal of surge protection module; When the surge protection module lost efficacy, be short-circuit condition, it is big that its operating current becomes, and overcurrent protector 1 increases along with electric current and the operating time increases and can melt rapidly, and circuit becomes open circuit.
Said first surge protector 2 includes Thermal Cutoffs and the piezo-resistance that is connected successively with said second surge protector 4, and it is used for the electric parameter that produces surge is released and/or suppressed, and said electric parameter comprises electric current and voltage; Said electric parameter comprises electric current and voltage.In the present embodiment, said Thermal Cutoffs is from the recovery type; The temperature threshold values of said Thermal Cutoffs is 120 ℃, that is to say, if the temperature of Thermal Cutoffs is higher than 120 ℃; Then piezo-resistance is high-impedance state, what deserves to be mentioned is, the threshold voltage of said piezo-resistance is 320V; The alternating voltage that this piezo-resistance permission is just passed through is 320V; When piezo-resistance was high-impedance state, its actual magnitude of voltage was 510V, repeats no more at this.
Said positioning indicator comprises warning lamp, and in the present embodiment, warning lamp gives a green light during surge protection module operate as normal, and warning lamp sent out a warning when surge protector 2 lost efficacy, and those skilled in the art should understand, and repeats no more at this.
What need explanation is; Sketch its operation principle in conjunction with Fig. 1 and Fig. 2: surge protection device 100 and electric device to be protected 200 are connected in parallel through electric wire, when circuit just often, if line voltage distribution is positioned under its nominal rating voltage; Piezo-resistance is a high-impedance state; Its resistance is near infinitely great, and inside almost no current is flow through, and surge protection device 100 does not influence electric device 200 operate as normal to be protected; When electric device 200 to be protected produces surge, for example thunderbolt or the like, the circuit instantaneous voltage can be higher than its nominal rating voltage far away; This moment, piezo-resistance was with rapid conducting; Become low resistive state by high-impedance state, operating current sharply increases, promptly surge energy rapidly bleed off to the earth.
Compared to prior art, surge protection device and electric device to be protected are connected in parallel through electric wire, thereby have reduced wiring, make when lightning current takes place, and residual voltage is little and lightning protection is effective; In addition, this surge protection device adopts heat, electric dual fail-safe fusing design, thereby has strengthened the fail safe of surge protector work, takes precautions against the generation of fire.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the utility model.
Claims (9)
1. a surge protection device is characterized in that, itself and electric device to be protected are connected in parallel through electric wire; Said electric wire comprises phase line, center line and ground wire; Said device specifically is included in surge protection module that is provided with between said phase line and the said center line and first surge protector that between said center line and said ground wire, is provided with, and said surge protection module comprises second surge protector, be used to indicate positioning indicator and the overcurrent protector that is used to protect said second surge protector of the operating state of said second surge protector.
2. surge protection device according to claim 1 is characterized in that, said surge protector is released to the electric parameter that produces surge and/or suppressed, and said electric parameter comprises electric current and voltage.
3. surge protection device according to claim 2 is characterized in that, said surge protector comprises Thermal Cutoffs and the piezo-resistance that connects successively.
4. surge protection device according to claim 3 is characterized in that, said Thermal Cutoffs is from the recovery type.
5. surge protection device according to claim 4 is characterized in that, the temperature threshold values of said Thermal Cutoffs is 120 ℃.
6. surge protection device according to claim 1 is characterized in that said positioning indicator comprises warning lamp.
7. surge protection device according to claim 3 is characterized in that, the threshold voltage of said piezo-resistance is 320V.
8. surge protection device according to claim 1 is characterized in that, said phase line comprises first phase line, second phase line and third phase line.
9. surge protection device according to claim 8 is characterized in that, said surge protection module comprises the first surge protection module, the second surge protection module and the 3rd surge protection module; Wherein, the said first surge protection module is located between said first phase line and the said center line, and the said second surge protection module is located between said second phase line and the said center line, and said the 3rd surge protection module is located between said third phase line and the said center line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220153155 CN202633929U (en) | 2012-04-12 | 2012-04-12 | Surge protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220153155 CN202633929U (en) | 2012-04-12 | 2012-04-12 | Surge protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202633929U true CN202633929U (en) | 2012-12-26 |
Family
ID=47387075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220153155 Expired - Fee Related CN202633929U (en) | 2012-04-12 | 2012-04-12 | Surge protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202633929U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103812099A (en) * | 2014-03-13 | 2014-05-21 | 佛山市顺德区伦教金盾防雷技术发展有限公司 | Novel multiple-pulse surge protection device |
| CN106786460A (en) * | 2016-12-29 | 2017-05-31 | 康迎利 | Lightning-protection module |
| CN106786345A (en) * | 2017-01-10 | 2017-05-31 | 四川埃姆克伺服科技有限公司 | A kind of thunder and lightning swimming protection system for servo controller |
-
2012
- 2012-04-12 CN CN 201220153155 patent/CN202633929U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103812099A (en) * | 2014-03-13 | 2014-05-21 | 佛山市顺德区伦教金盾防雷技术发展有限公司 | Novel multiple-pulse surge protection device |
| CN103812099B (en) * | 2014-03-13 | 2017-03-15 | 佛山市顺德区伦教金盾防雷技术发展有限公司 | New multiple-pulse surge protector |
| CN106786460A (en) * | 2016-12-29 | 2017-05-31 | 康迎利 | Lightning-protection module |
| CN106786345A (en) * | 2017-01-10 | 2017-05-31 | 四川埃姆克伺服科技有限公司 | A kind of thunder and lightning swimming protection system for servo controller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20200412 |