CN104505306A - Hybrid relay with over-voltage and under-voltage protection functions - Google Patents
Hybrid relay with over-voltage and under-voltage protection functions Download PDFInfo
- Publication number
- CN104505306A CN104505306A CN201410791252.0A CN201410791252A CN104505306A CN 104505306 A CN104505306 A CN 104505306A CN 201410791252 A CN201410791252 A CN 201410791252A CN 104505306 A CN104505306 A CN 104505306A
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- CN
- China
- Prior art keywords
- resistance
- voltage
- connects
- under
- electric capacity
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- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/023—Details concerning sealing, e.g. sealing casing with resin
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
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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
- 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
- H02H3/24—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 undervoltage or no-voltage
Abstract
The invention discloses a hybrid relay with over-voltage and under-voltage protection functions. The hybrid relay with the over-voltage and under-voltage protection functions comprises a metal housing (3), wherein a metal bottom plate (6) is arranged in the metal housing (3); an over-voltage and under-voltage protection circuit board (1) is arranged on the metal bottom plate (6); the over-voltage and under-voltage protection circuit board (1) is connected with an insulating spacer (4); an electromagnetic relay (2) is also arranged on the metal bottom plate (6); the electromagnetic relay (2) is connected with a glass insulator (7) through metal pins (5). The hybrid relay with the over-voltage and under-voltage protection functions has the advantages that the reliability level is high, the load capacity is strong, the size is small, and the over-voltage protection and under-voltage protection are carried out simultaneously.
Description
Technical field
The present invention relates to a kind of relay, particularly a kind of hybrid relay with overvoltage/undervoltage defencive function.
Background technology
Existing electromagnetic relay is mainly in load capacity, environmental index, mechanical structure, the tackling key problem of light-duty small size aspect, seldom there is auxiliary voltage defencive function, national defence weapon can not be met preferably, Aero-Space, industrial production, the instructions for use in the fields such as precision instrument, GJB GJB65A-91, GJB65B-99, GJB2888-97 has classification to failure rate level, sorting technique be by relay under the environment and the condition such as mechanics of regulation, the inefficacy product number of predetermined function has been failed in the action frequency of regulation, and the reliability step of existing electromagnetic relay with small volume is lower, load capacity is more weak, and not there is voltage protection function.
Summary of the invention
The object of the invention is to, a kind of hybrid relay with overvoltage/undervoltage defencive function is provided.Not only reliability step is high for it, and load capacity is strong, and volume is little, and overvoltage can be realized and under-voltage while protect.
Technical scheme of the present invention: a kind of hybrid relay with overvoltage/undervoltage defencive function, comprise metal case, metal base plate is provided with in metal case, metal base plate is provided with over under-voltage protection circuit plate, over under-voltage protection circuit plate is connected with insulation spacer, metal base plate is also provided with electromagnetic relay, and electromagnetic relay is by metal pin and glass insulation sub-connection;
The positive pole of described over under-voltage protection circuit plate connects the first resistance, the first electric capacity, one end of the second resistance and the negative terminal of the first diode, the other end ground connection of the first electric capacity respectively; The other end of the first resistance connects the anode of one end of the 3rd resistance, the negative terminal of the second voltage comparator and the first voltage comparator respectively, the other end ground connection of the 3rd resistance, the negative terminal of the first voltage comparator connects one end of the 4th resistance and the 5th resistance respectively, the other end ground connection of the 5th resistance, simultaneously the 5th resistance two ends the second electric capacity in parallel; The other end of the 4th resistance connects the other end of one end of the 6th resistance, one end of the 7th resistance, one end of the 3rd electric capacity, the negative terminal of the first voltage stabilizing didoe and the second resistance respectively, the anode of the first voltage stabilizing didoe and the other end ground connection of the 3rd electric capacity, the other end of the 6th resistance connects the anode of the second voltage comparator and one end of the 8th resistance respectively, the other end of the 8th resistance is taken over the negative pole of under-voltage protecting circuit plate, ground connection respectively and is connect the emitter of the first triode, the 8th resistance two ends the 4th electric capacity in parallel simultaneously; The other end of the 7th resistance connects the base stage of the output of the first voltage comparator, the output of the second voltage comparator and the first triode respectively, the collector electrode of the first triode connects the anode of the first diode, simultaneously the two ends of the first diode the first relay in parallel.
In the aforesaid hybrid relay with overvoltage/undervoltage defencive function, described metal case adopts Laser seal welding technology and metal base plate to carry out seal welding under the environment having nitrogen protection.
Compared with prior art, the present invention has following advantage:
1, internal protection circuitry of the present invention adopts conventional high-precision electronic components and parts composition, draws materials easily, and convenient debugging, compact conformation, compact, can reach 39.2mm × 24mm × 15mm.
2, output of the present invention adopts has the microminiature electromagnetic relay of reliability index (Guizhou Zhenhua Qunying Electrical Appliances Co., Ltd. KJZC-102M) to bear, and reliability step is high, and environmental suitability is strong, and load capacity is strong, can reach 30Vd.c./10A.
3, the present invention adopts two internal comparator of an integrated comparator chip to form overvoltage protections and under-voltage protection control circuit, the connected mode that the output of two internal comparator adopts " line with ", realize overvoltage and under-voltage while protect.
4, the present invention adopts and suppresses the back electromotive force at coil two ends an acceptable level at coil two ends inverse parallel first diode of the microminiature electromagnetic relay having reliability index; inductive energy storage is allowed to change heat energy into by afterflow mode; not with arc method consumption, protection relay coil.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present invention;
Fig. 2 is partial sectional view of the present invention;
Fig. 3 is the schematic diagram of metal pin.
Being labeled as in accompanying drawing: 1-over under-voltage protection circuit plate, 2-electromagnetic relay, 3-metal case, 4-insulation spacer, 5-metal pin, 6-metal base plate, 7-glass insulator, 8-first diode, 9-first electric capacity, 10-second voltage comparator, 11-first resistance, 12-the 3rd resistance, 13-second resistance, 14-the 4th resistance, 15-the 5th resistance, 16-the 6th resistance, 17-the 8th resistance, 18-the 7th resistance, 19-first voltage comparator, 20-second electric capacity, 21-first voltage stabilizing didoe, 22-the 3rd electric capacity, 23-the 4th electric capacity, 24-first triode, 25-first relay, 26-output, 27-input.
Embodiment
Embodiment.A kind of hybrid relay with overvoltage/undervoltage defencive function, form as shown in Figure 1, Figure 2 and Figure 3, comprise metal case 3, metal base plate 6 is provided with in metal case 3, metal base plate 6 is provided with over under-voltage protection circuit plate 1, over under-voltage protection circuit plate 1 is connected with insulation spacer 4, and metal base plate 6 is also provided with electromagnetic relay 2, and electromagnetic relay 2 is connected with glass insulator 7 by metal pin 5; Described metal pin 5 is set to 5, wherein, and two inputs, 27,3 outputs 26.
The positive pole of described over under-voltage protection circuit plate 1 connects one end of the first resistance 11, first electric capacity 9, second resistance 13 and the negative terminal of the first diode 8, the other end ground connection of the first electric capacity 9 respectively, the other end of the first resistance 11 connects the anode of one end of the 3rd resistance 12, the negative terminal of the second voltage comparator 10 and the first voltage comparator 19 respectively, the other end ground connection of the 3rd resistance 12, the negative terminal of the first voltage comparator 19 connects one end of the 4th resistance 14 and the 5th resistance 15 respectively, the other end ground connection of the 5th resistance 15, simultaneously the 5th resistance 15 two ends the second electric capacity 20 in parallel, the other end of the 4th resistance 14 connects one end of the 6th resistance 16 respectively, one end of 7th resistance 18, one end of 3rd electric capacity 22, the negative terminal of the first voltage stabilizing didoe 21 and the other end of the second resistance 13, the anode of the first voltage stabilizing didoe 21 and the other end ground connection of the 3rd electric capacity 22, the other end of the 6th resistance 16 connects the anode of the second voltage comparator 10 and one end of the 8th resistance 17 respectively, the other end of the 8th resistance 17 takes over the negative pole of under-voltage protecting circuit plate 1 respectively, ground connection and the emitter connecing the first triode 24, 8th resistance 17 two ends the 4th electric capacity 23 in parallel simultaneously, the other end of the 7th resistance 18 connects the base stage of the output of the first voltage comparator 19, the output of the second voltage comparator 10 and the first triode 24 respectively, the collector electrode of the first triode 24 connects the anode of the first diode 8, simultaneously the two ends of the first diode 8 first relay 25 in parallel.
Described metal case 3 adopts Laser seal welding technology and metal base plate 6 to carry out seal welding under the environment having nitrogen protection.
Operation principle: as shown in Figure 1, the operating voltage of voltage comparator of the present invention takes from the first voltage stabilizing didoe 21, and the reference voltage of voltage comparator obtains from the first voltage stabilizing didoe 21 dividing potential drop; The reference voltage of the second voltage comparator 10 is located at reverse input end, and its value is obtained by the 5th resistance 15 and the 4th resistance 14 dividing potential drop; The reference voltage of the first voltage comparator 19 is located at the in-phase input end of comparator, and its value is obtained by the 8th resistance 17 and the 6th resistance 16 dividing potential drop.One end of the 7th resistance 18 and the base stage of the first triode 24 is connected to after the output of the output of the second voltage comparator 10 and the first voltage comparator 19 " line with " is connected.When between input 27, voltage is greater than the overvoltage cut-out value of setting, the second voltage comparator 10 output low level, the first voltage comparator 19 exports high-impedance state, line and rear result are low level, and the first triode 24 ends, the first relay 25 coil losing electricity, relay discharges, and cuts off load.In like manner, when between input 27, voltage is less than the undervoltage value of setting, the first voltage comparator 19 output low level, second voltage comparator 10 exports high-impedance state, and line and rear result are low level, and the first triode 24 ends, first relay 25 coil losing electricity, relay discharges.When between input terminal 27, voltage is between undervoltage value and overvoltage cut-out value, second voltage comparator 10 and the first voltage comparator 19 all export as high-impedance state, the base stage of the first triode 24 obtains drive current by the 7th resistance 18, first triode 24 conducting, first relay 25 coil obtains electric, the actuating of relay, connects load running.
Claims (2)
1. the hybrid relay with overvoltage/undervoltage defencive function, it is characterized in that: comprise metal case (3), metal base plate (6) is provided with in metal case (3), metal base plate (6) is provided with over under-voltage protection circuit plate (1), over under-voltage protection circuit plate (1) is connected with insulation spacer (4), metal base plate (6) is also provided with electromagnetic relay (2), electromagnetic relay (2) is connected with glass insulator (7) by metal pin (5);
The positive pole of described over under-voltage protection circuit plate (1) connects the first resistance (11), the first electric capacity (9), one end of the second resistance (13) and the negative terminal of the first diode (8), the other end ground connection of the first electric capacity (9) respectively, the other end of the first resistance (11) connects the anode of one end of the 3rd resistance (12), the negative terminal of the second voltage comparator (10) and the first voltage comparator (19) respectively, the other end ground connection of the 3rd resistance (12), the negative terminal of the first voltage comparator (19) connects one end of the 4th resistance (14) and the 5th resistance (15) respectively, the other end ground connection of the 5th resistance (15), simultaneously the 5th resistance (15) two ends the second electric capacity (20) in parallel, the other end of the 4th resistance (14) connects one end of the 6th resistance (16) respectively, one end of 7th resistance (18), one end of 3rd electric capacity (22), the negative terminal of the first voltage stabilizing didoe (21) and the other end of the second resistance (13), the anode of the first voltage stabilizing didoe (21) and the other end ground connection of the 3rd electric capacity (22), the other end of the 6th resistance (16) connects the anode of the second voltage comparator (10) and one end of the 8th resistance (17) respectively, the other end of the 8th resistance (17) takes over the negative pole of under-voltage protecting circuit plate (1) respectively, ground connection and the emitter connecing the first triode (24), 8th resistance (17) two ends the 4th electric capacity (23) in parallel simultaneously, the other end of the 7th resistance (18) connects the base stage of the output of the first voltage comparator (19), the output of the second voltage comparator (10) and the first triode (24) respectively, the collector electrode of the first triode (24) connects the anode of the first diode (8), simultaneously the two ends of the first diode (8) the first relay (25) in parallel.
2. the hybrid relay with overvoltage/undervoltage defencive function according to claim 1, is characterized in that: described metal case (3) adopts Laser seal welding technology and metal base plate (6) to carry out seal welding under the environment having nitrogen protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410791252.0A CN104505306A (en) | 2014-12-19 | 2014-12-19 | Hybrid relay with over-voltage and under-voltage protection functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410791252.0A CN104505306A (en) | 2014-12-19 | 2014-12-19 | Hybrid relay with over-voltage and under-voltage protection functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104505306A true CN104505306A (en) | 2015-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410791252.0A Pending CN104505306A (en) | 2014-12-19 | 2014-12-19 | Hybrid relay with over-voltage and under-voltage protection functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104505306A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113824082A (en) * | 2021-11-24 | 2021-12-21 | 华海通信技术有限公司 | Submarine optical cable splitter supporting electric switching function |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100182156A1 (en) * | 2009-01-16 | 2010-07-22 | O2 Micro, Inc. | Protection circuit with timer |
| CN201590645U (en) * | 2009-12-10 | 2010-09-22 | 厦门科华恒盛股份有限公司 | AC input over-voltage and under-voltage protection device for electric apparatus |
| CN201726099U (en) * | 2010-03-29 | 2011-01-26 | 薛小平 | Voltage deviation operated protector |
| CN102856122A (en) * | 2012-09-14 | 2013-01-02 | 贵州振华群英电器有限公司 | High sensitivity square TO-5 sealed electromagnetic relay |
| US20130154774A1 (en) * | 2011-12-14 | 2013-06-20 | Vijay Bhavaraju | Hybrid bi-directional dc contactor and method of controlling thereof |
-
2014
- 2014-12-19 CN CN201410791252.0A patent/CN104505306A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100182156A1 (en) * | 2009-01-16 | 2010-07-22 | O2 Micro, Inc. | Protection circuit with timer |
| CN201590645U (en) * | 2009-12-10 | 2010-09-22 | 厦门科华恒盛股份有限公司 | AC input over-voltage and under-voltage protection device for electric apparatus |
| CN201726099U (en) * | 2010-03-29 | 2011-01-26 | 薛小平 | Voltage deviation operated protector |
| US20130154774A1 (en) * | 2011-12-14 | 2013-06-20 | Vijay Bhavaraju | Hybrid bi-directional dc contactor and method of controlling thereof |
| CN102856122A (en) * | 2012-09-14 | 2013-01-02 | 贵州振华群英电器有限公司 | High sensitivity square TO-5 sealed electromagnetic relay |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113824082A (en) * | 2021-11-24 | 2021-12-21 | 华海通信技术有限公司 | Submarine optical cable splitter supporting electric switching function |
| CN113824082B (en) * | 2021-11-24 | 2022-01-25 | 华海通信技术有限公司 | Submarine optical cable splitter supporting electric switching function |
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| PB01 | Publication | ||
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Application publication date: 20150408 |