CN202474847U - Full-model overvoltage protection module for AC circuit - Google Patents
Full-model overvoltage protection module for AC circuit Download PDFInfo
- Publication number
- CN202474847U CN202474847U CN 201120560110 CN201120560110U CN202474847U CN 202474847 U CN202474847 U CN 202474847U CN 201120560110 CN201120560110 CN 201120560110 CN 201120560110 U CN201120560110 U CN 201120560110U CN 202474847 U CN202474847 U CN 202474847U
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- China
- Prior art keywords
- alloy
- temperature fuse
- overvoltage protection
- type temperature
- gdt
- 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.)
- Expired - Lifetime
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Classifications
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- 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
- H02H3/20—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 voltage
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/042—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage comprising means to limit the absorbed power or indicate damaged over-voltage protection device
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
- H02H5/046—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature using a thermocouple
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- Fuses (AREA)
- Emergency Protection Circuit Devices (AREA)
- Thermistors And Varistors (AREA)
Abstract
The utility model relates to a full-model overvoltage protection module for an AC (alternating current) circuit, integrating a first alloy-type temperature fuse, a second alloy-type temperature fuse, a third alloy-type temperature fuse, a first piezoresistor, a second piezoresistor and one type of gas into a modular structure, wherein MOV (metal oxide varistor) of TMOV (thermal metal oxide varistor) between the live wire-ground wire (L-G) and the zero wire-ground wire (N-G) in the module can effectively absorb surging overvoltage, and the alloy-type temperature fuse TCO which is propped to the surface of the MOV and is arranged in the TMOV can effectively avoid fire hazard caused by MOV degradation/invalidation or temporary overvoltage; as a gas discharging tube also radiates when the use process is abnormal, and the gas discharging tube is also connected to a temperature fuse in series so that when the temperature of the gas discharging tube is too high, the temperature fuse can disconnect the circuit; and the full-model overvoltage protection module for an AC circuit of the integrated structure having MOV and GDT invalidation protection can effectively prevent the fire hazard caused by degradation or invalidation.
Description
Technical field
The utility model relates to a kind of full mould overvoltage protection module of alternating current circuit, particularly is provided with the full mould overvoltage protection module of the band fail safe of alloy-type temperature fuse, piezo-resistance and gas discharge tube.
Background technology
Varistor is with its superior non-linear voltage-current characteristic; The overvoltage protection and the surge that are widely used in power supply, equipment and components and parts absorb; When dissimilar instantaneous overvoltages frequently occurs; Varistor will discharge surge energy to suppress the overvoltage amplitude with absorbing by frequent movement, so, will certainly cause the performance degradation even the inefficacy of varistor; In the case when temporary overvoltage flows through piezo-resistance; The rapid partial breakdown of piezo-resistance meeting causes the phenomenon of catching fire; Announced a kind of scheme of piezo-resistance being carried out overtemperature protection for overcoming this problem patent of invention ZL2005100446615 (2009.11.18.) with alloy-type temperature fuse, guarantee Thermal Cutoffs can in time promptly respond to piezo-resistance heating and thus the varistor of deterioration or inefficacy is protected
On the other hand in the surge protection of ac circuit; Need the full mould protection of L-N, L-G, N-G; Produced the full mould protected mode of 2+1 thus; Promptly adopt two piezo-resistances (MOV) series connection gas discharge tubes (GDT) between L-G and N-G, to form common mode protection mode, two piezo-resistances (MOV) have formed the differential mode protected mode between L-N in addition.The full mould protected mode of traditional 2+1, the employing individual devices is connected to form through the periphery, but takes up room very much and area, is not suitable for the miniaturization demand of hyundai electronics electric equipment.For this reason, the utility model proposes a kind of band MOV of alternating current circuit, the full mould overvoltage protection module of GDT fail safe.
The utility model content
A kind of full mould overvoltage protection module of alternating current circuit; Comprise first alloy-type temperature fuse (TCO1), second alloy-type temperature fuse (TCO2), the 3rd alloy-type temperature fuse (TCO3), first piezo-resistance (MOV1), second piezo-resistance (MOV2) and two utmost point gas discharge tubes (GDT); It is characterized in that: an end of first alloy-type temperature fuse (TCO1) is connected with the L of power supply end, and the other end of said TCO1 is connected with an end of first piezo-resistance (MOV1); The other end of said MOV1 is connected with an end of described two utmost point discharge tubes (GDT); The other end of said GDT is connected with an end of said the 3rd alloy-type temperature fuse (TCO3); The other end of described TCO3 is connected with the G of power supply end; More than connected and composed first loop, said first loop has formed the L end of power supply to the common mode overvoltage protection between the G end; Wherein an end of second alloy-type temperature fuse (TCO2) is connected with the N end of power supply, and the other end of said TCO2 is connected with an end of second piezo-resistance (MOV2); The other end of said MOV2 links to each other with the tie point of said MOV1 and said GDT; The other end of said GDT is connected with the end of said TCO3; The other end of described TCO3 is connected with the G of power supply end; More than connected and composed second loop, said second loop has formed the N end of power supply to the common mode overvoltage protection between the G end; The series connection of TCO1, MOV1, MOV2, TCO2 has formed tertiary circuit, and said tertiary circuit has formed the L end of power supply the difference between the N end is touched overvoltage protection
The described TMOV1 that constitutes by first alloy-type temperature fuse, first piezo-resistance; With the TMOV2 that constitutes by second alloy-type temperature fuse, second piezo-resistance be same or similar shape; And parallel stacking, TCO1, the TCO2 among the TMOV2 among the TMOV1 are in same aspect.
The GDT assembly that described GDT and TCO3 are combined into is placed between TMOV1 and the TMOV2, with TCO1 among the TMOV1, TCO2 among the TMOV2 same aspect that coexists, or establishes an aspect in addition.
Installation Modes is horizontal, is suitable for the pcb board connection and maybe can plugs connection.
Installation Modes is vertical, and the lead-in wire that all of said module are externally drawn is drawn towards the same side, forms vertical structure, is suitable for pcb board and connects, or cooperate the installation of indicating circuit, processes the plug construction of guide tracked installation.
Therefore, formed the full mould protection to single phase alternating current circuit by first loop, second loop, tertiary circuit, simultaneously, piezo-resistance in all loops and gas discharge tube all have the excess temperature trip gear of deterioration of preventing and inefficacy.
The tie point of said in addition TCO1 and said MOV1 can be drawn the end S1 as state indication circuit; The tie point of TCO2 and said MOV2 can be drawn the other end S2 as state indication circuit; S1 and S2 can draw the condition indication circuit that is connected to peripheral hardware.
The beneficial effect that the utility model brings is:
The utility model is formed as one modular construction with first alloy-type temperature fuse, second alloy-type temperature fuse, the 3rd alloy-type temperature fuse, first piezo-resistance, second piezo-resistance and a kind of gas discharge tube set; MOV among the TMOV between live wire-ground wire in the module (L-G), the zero line-ground wire (N-G) can absorb overvoltage surge effectively, and the built-in alloy-type temperature fuse TCO that is close proximity to the MOV surface can avoid the disaster hidden-trouble that produces because of MOV deterioration/inefficacy or temporary overvoltage effectively among the TMOV; In addition, also can generate heat when unusual in use appears in gas discharge tube, is in series with Thermal Cutoffs equally, and when the gas discharge tube temperature was too high, Thermal Cutoffs can cut off circuit; The full mould protection module of the band MOV of the utility model integral structure, GDT fail safe prevents the hidden danger that MOV, GDT catch fire because of deterioration or inefficacy effectively; The utility model adopts the pcb board welding manner; Can dwindle the area that module takies pcb board in ground, particularly the module height has significant reduction.
Description of drawings
Accompanying drawing 1 is a circuit diagram of the present invention
Accompanying drawing 2 is general assembly partial sectional views of the present invention
Accompanying drawing 3 is cut-away views of the present invention
Accompanying drawing 4 is parts 311 disassembly diagrams of the present invention
Accompanying drawing 5 is parts 303 disassembly diagrams of the present invention
Embodiment:
Below in conjunction with Fig. 1 to Fig. 5 concrete technology implementation scheme of the present invention is further explained:
In Fig. 1; One end of first Thermal Cutoffs (TCO1) is connected with the L of power supply end; The other end of said TCO1 is connected with an end of first piezo-resistance (MOV1); Formed the structure TMOV1 of (being called for short TMOV) of " being provided with the piezo-resistance of alloy-type temperature fuse " described in the patent ZL2005100446615 (2009.11.18.), the heat that when MOV1 deterioration or inefficacy, is produced can in time cut off TCO1; The other end of said MOV1 is connected with an end of described two utmost point discharge tubes (GDT); The other end of said GDT is connected with an end of said the 3rd Thermal Cutoffs (TCO3); The heat that when the GDT short circuit was lost efficacy, was produced in time cuts off TCO3; The other end of described TCO3 is connected with the G of power supply end, has has more than connected and composed first loop, and said first loop has formed the L end of power supply to the common mode overvoltage protection between the G end; One end of second Thermal Cutoffs (TCO2) is connected with the N of power supply end, and the other end of said TCO2 is connected with an end of second piezo-resistance (MOV2), has formed the TMOV2 structure, and the heat that when MOV2 deterioration or inefficacy, is produced can in time cut off TCO2; The other end of said MOV2 is connected with the tie point of said MOV1 and said GDT; The other end of said GDT is connected with the end of said TCO3; The other end of described TCO3 is connected with the G of power supply end; More than connected and composed second loop, said second loop has formed the N end of power supply to the common mode overvoltage protection between the G end.And the series connection of TCO1, MOV1, MOV2, TCO2 has formed tertiary circuit, and said tertiary circuit has formed the L end of power supply to the differential mode overvoltage protection between the N end.
On appearance structure, TMOV1 and TMOV2 are same or similar shape, and are parallel and stack, and TCO1, the TCO2 among the TMOV2 among the TMOV1 are in same aspect; The GDT assembly that GDT and TCO3 are combined into is placed between TMOV1 and the TMOV2, can with TCO1 among the TMOV1, TCO2 among the TMOV2 same aspect that coexists, or establish an aspect in addition.
In addition; The tie point of said TCO1 and said MOV1 can be drawn the end S1 as state indication circuit; The tie point of TCO2 and said MOV2 can be drawn the other end S2 as state indication circuit; S1 and S2 externally draw, and can connect the peripheral hardware condition indication circuit, are used to indicate TCO1 and TCO2 whether all to be in on-state; TCO3 externally draws with the tie point S3 of GDT can be connected the peripheral hardware indicating circuit, is used to indicate TCO3 whether to be in on-state.
In Fig. 2; Said full mould overvoltage protection module is provided with at shell 203 and cover plate 202; Centre at said shell 203 and cover plate 202 is provided with module mechanism 201; Said shell 203 and cover plate 202 can adopt the engineering plastics of injection mo(u)lding, also can be that ceramic material is processed or similar material, and adopt materials such as epoxy resin, silicones, inorganic filler to carry out integral sealing.
In Fig. 3, comprise assembly TMOV1 assembly 301, TMOV2 assembly 302, GDT assembly 303 in the said module mechanism 201; Wherein said TMOV1 assembly 301 comprises the first piezo-resistance 403-1 and first Thermal Cutoffs 304; Said TMOV2 assembly 302 comprises the second piezo-resistance 403-2 and second Thermal Cutoffs 305, and said GDT assembly 303 comprises the 3rd Thermal Cutoffs 306 and two utmost point discharge tubes 307; Said TMOV1 assembly 301 places the top of said TMOV2 assembly 302, and said GDT assembly 303 places in the middle of said TMOV1 assembly 301 and the said TMOV2 assembly 302.
Fig. 4 has shown the part and composition structure of said TMOV1 assembly 301 and said TMOV2 assembly 302.On on four surfaces of the ceramic nude film 403-1 of MOV and 403-2, applied conductive silver layer 402A, 402B, 416C, 416D respectively, and then formed the electrical characteristic of MOV; Adopt tin solder with electrode 401,405,406,410 respectively with conductive silver layer 402A, 402B, 416C, 416D welding on; And the lead-in wire 418 (being the S1 among Fig. 1) that is welding the lead-in wire 420 of the first Thermal Cutoffs 403-1 on the electrode 401 and externally extending; Lead-in wire 420 has been having crossed over the said first piezo-resistance 403-1 after the bending, and at heat-sensitive alloy silk 415-1, another lead-in wire 419 that externally extends of the downside of the electrode 405 of the said first piezo-resistance 403-1 and Thermal Cutoffs 304, the break agent 408-1, shell 409-1, joint filling material 414-1 of fluxing be assembled into the first complete Thermal Cutoffs 304; The shell 409-1 of said first Thermal Cutoffs 304 will be near the surface of the electrode 405 on the said first piezo-resistance 403-1; Welding the lead-in wire 413 of Thermal Cutoffs 305 and the lead-in wire 412 (being the S2 among Fig. 1) that externally extends on the electrode 410; The lead-in wire 413 of Thermal Cutoffs has been having crossed over the said second piezo-resistance 403-2 after the bending, and is assembled into the second complete Thermal Cutoffs 305 at upside and heat-sensitive alloy silk 415-2, another lead-in wire 411 that externally extends of Thermal Cutoffs, the disconnected agent 408-2 that fluxes, shell 409-2, the joint filling material 414-2 of the electrode 406 of the said second piezo-resistance 403-2; The shell 409-2 of said second Thermal Cutoffs 305 will be near the surface of the electrode 406 on the said second piezo-resistance 403-2; Wherein said electrode 405 links into an integrated entity through electrode 417 with said electrode 406; And the lead-in wire 407 (being S3 among Fig. 1) that welding is externally drawn on said electrode 406; There is the hole 309 on the electrode 308 on the parts GDT307 of two bossings and said GDT assembly 303 to be nested together on the said electrode 404, forms and effectively be electrically connected and mechanical positioning.
The part and composition structure that have shown said GDT assembly 303 at Fig. 5, the lead-in wire 310 of externally drawing is assembled into the 3rd complete Thermal Cutoffs 306 with the heat-sensitive alloy silk 415-3 of Thermal Cutoffs 306, another lead-in wire 502 that externally extends, the disconnected agent 408-3 that fluxes, shell 409-3, joint filling material 414-3; The lead-in wire 502 of said the 3rd Thermal Cutoffs 306 is formed GDT assembly 303 after welding with the electrode of GDT307 501.
Like Fig. 2～shown in Figure 5, the Installation Modes of the integral structure of present embodiment is horizontal, is suitable for pcb board and connects and maybe can plug connection; All lead-in wires of externally drawing of the integral structure of present embodiment also can be drawn towards the same side, form vertical structure, are suitable for pcb board and connect, and also can cooperate the installation of indicating circuit, process the plug construction of guide tracked installation.
The above; Be merely the utility model preferred embodiment; So can not limit the scope that the utility model is implemented according to this, the equivalence of promptly doing according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model contains.
Claims (5)
1. the full mould overvoltage protection module of an alternating current circuit; Comprise first alloy-type temperature fuse (TCO1), second alloy-type temperature fuse (TCO2), the 3rd alloy-type temperature fuse (TCO3), first piezo-resistance (MOV1), second piezo-resistance (MOV2) and two utmost point gas discharge tubes (GDT); It is characterized in that: an end of first alloy-type temperature fuse (TCO1) is connected with the L of power supply end, and the other end of said TCO1 is connected with an end of first piezo-resistance (MOV1); The other end of said MOV1 is connected with an end of described two utmost point discharge tubes (GDT); The other end of said GDT is connected with an end of said the 3rd alloy-type temperature fuse (TCO3); The other end of described TCO3 is connected with the G of power supply end; More than connected and composed first loop, said first loop has formed the L end of power supply to the common mode overvoltage protection between the G end; Wherein an end of second alloy-type temperature fuse (TCO2) is connected with the N end of power supply, and the other end of said TCO2 is connected with an end of second piezo-resistance (MOV2); The other end of said MOV2 links to each other with the tie point of said MOV1 and said GDT; The other end of said GDT is connected with the end of said TCO3; The other end of described TCO3 is connected with the G of power supply end; More than connected and composed second loop, said second loop has formed the N end of power supply to the common mode overvoltage protection between the G end; The series connection of TCO1, MOV1, MOV2, TCO2 has formed tertiary circuit, and said tertiary circuit has formed the L end of power supply the difference between the N end is touched overvoltage protection
2. the full mould overvoltage protection module of a kind of alternating current circuit according to claim 1; It is characterized in that the described TMOV1 that constitutes by first alloy-type temperature fuse, first piezo-resistance; With the TMOV2 that constitutes by second alloy-type temperature fuse, second piezo-resistance be same or similar shape; And parallel stacking, TCO1, the TCO2 among the TMOV2 among the TMOV1 are in same aspect.
3. the full mould overvoltage protection module of a kind of alternating current circuit according to claim 2; It is characterized in that the GDT assembly that described GDT and TCO3 are combined into is placed between TMOV1 and the TMOV2; With TCO1 among the TMOV1, TCO2 among the TMOV2 same aspect that coexists, or establish an aspect in addition.
4. the full mould overvoltage protection module of a kind of alternating current circuit according to claim 3 is characterized in that Installation Modes is horizontal, is suitable for the pcb board connection and maybe can plugs connection.
5. the full mould overvoltage protection module of a kind of alternating current circuit according to claim 3; It is characterized in that Installation Modes is vertical; The lead-in wire that all of said module are externally drawn is drawn towards the same side, forms vertical structure, is suitable for pcb board and connects; Or the installation of cooperation indicating circuit, process the plug construction of guide tracked installation.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120560110 CN202474847U (en) | 2011-12-28 | 2011-12-28 | Full-model overvoltage protection module for AC circuit |
| PCT/CN2012/086245 WO2013097590A1 (en) | 2011-12-28 | 2012-12-10 | Full-model overvoltage protection module for alternating current circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120560110 CN202474847U (en) | 2011-12-28 | 2011-12-28 | Full-model overvoltage protection module for AC circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202474847U true CN202474847U (en) | 2012-10-03 |
Family
ID=46922974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120560110 Expired - Lifetime CN202474847U (en) | 2011-12-28 | 2011-12-28 | Full-model overvoltage protection module for AC circuit |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN202474847U (en) |
| WO (1) | WO2013097590A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013097590A1 (en) * | 2011-12-28 | 2013-07-04 | 厦门赛尔特电子有限公司 | Full-model overvoltage protection module for alternating current circuit |
| CN105896512A (en) * | 2015-10-28 | 2016-08-24 | 苏州研工电子科技有限公司 | Lightning stroke-proof surge circuit |
| CN106026065A (en) * | 2016-07-22 | 2016-10-12 | 四川中光防雷科技股份有限公司 | Bridge structure surge protection device |
| CN108370154A (en) * | 2015-08-13 | 2018-08-03 | 力特半导体（无锡）有限公司 | Overvoltage protection |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015215142B4 (en) * | 2015-08-07 | 2022-06-15 | Phoenix Contact Gmbh & Co. Kg | protection circuitry |
| FR3057403B1 (en) * | 2016-10-10 | 2019-10-18 | Citel | COMPONENT INTEGRATING A THERMOPROTEGED VARIANCE AND A SERIES ECLATOR |
| NL2022430B1 (en) * | 2019-01-22 | 2020-08-18 | Schreder Sa | Connection module for a luminaire |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10116172A1 (en) * | 2001-03-31 | 2002-10-10 | 3 K Elek K Vertriebs Gmbh | Overvoltage protection arrangement has series circuit with thermal fuse, varistor connecting two current conductors carrying voltage, similar series circuit in parallel with first series circuit |
| CN100561611C (en) * | 2005-09-03 | 2009-11-18 | 徐忠厚 | Be provided with the piezo-resistance of alloy-type temperature fuse |
| CN101546911B (en) * | 2009-04-30 | 2011-08-03 | 深圳科安达电子科技股份有限公司 | Multifunctional lightning protection module |
| CN202474847U (en) * | 2011-12-28 | 2012-10-03 | 厦门赛尔特电子有限公司 | Full-model overvoltage protection module for AC circuit |
-
2011
- 2011-12-28 CN CN 201120560110 patent/CN202474847U/en not_active Expired - Lifetime
-
2012
- 2012-12-10 WO PCT/CN2012/086245 patent/WO2013097590A1/en active Application Filing
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013097590A1 (en) * | 2011-12-28 | 2013-07-04 | 厦门赛尔特电子有限公司 | Full-model overvoltage protection module for alternating current circuit |
| CN108370154A (en) * | 2015-08-13 | 2018-08-03 | 力特半导体（无锡）有限公司 | Overvoltage protection |
| US10714241B2 (en) | 2015-08-13 | 2020-07-14 | Littelfuse Semiconductor (Wuxi) Co., Ltd. | Overvoltage protection device |
| US10714240B2 (en) | 2015-08-13 | 2020-07-14 | Littlefuse Semiconductor (Wuxi) Co., Ltd. | Overvoltage protection device |
| CN105896512A (en) * | 2015-10-28 | 2016-08-24 | 苏州研工电子科技有限公司 | Lightning stroke-proof surge circuit |
| CN106026065A (en) * | 2016-07-22 | 2016-10-12 | 四川中光防雷科技股份有限公司 | Bridge structure surge protection device |
| CN106026065B (en) * | 2016-07-22 | 2018-07-03 | 四川中光防雷科技股份有限公司 | A kind of bridge architecture surge protector |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013097590A1 (en) | 2013-07-04 |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121003 |