CN103681108B - Large-current electromagnetic relay - Google Patents
Large-current electromagnetic relay Download PDFInfo
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- CN103681108B CN103681108B CN201310692262.4A CN201310692262A CN103681108B CN 103681108 B CN103681108 B CN 103681108B CN 201310692262 A CN201310692262 A CN 201310692262A CN 103681108 B CN103681108 B CN 103681108B
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Abstract
The invention discloses a large-current electromagnetic relay. According to the large-current electromagnetic relay, a sampling assembly is fixedly inserted into steps at two sides of an energy-saving type large-current electromagnetic relay, an electronic sensor circuit board is installed on one lateral inner wall of the sampling assembly, two temperature sampling connection rings connected with two copper binding posts respectively and a current sampling magnetism-conductive ring are arranged on the circuit board, a temperature control circuit, a current control circuit, an alarm circuit and a disconnection execution circuit are arranged on the circuit board, a power supply positive pole connector N, a power supply negative pole connector E, a relay coil positive pole connector M and a signal amplification output connector K are installed on a plug at the outer side of the assembly in sequence, and the plug is provided with a connector socket with a lead led out from the lower portion. After being additionally provided with an overload and overheating sensor based on the prior art, the large-current electromagnetic relay has the advantages of being high in voltage resisting grade, small in size, low in energy consumption and long in service life, is safer to use, and can timely give an alarm and cut off an external overload power supply circuit.
Description
Technical field
The present invention is a kind of electromagnetic relay with the short circuit preventing current overload from causing, the unsafe factor such as overheated being particularly suitable for motor vehicle is installed and used.
Background technology
Existing " energy-saving high-current electromagnetic relay " patent No. is 200910065110.5, it parallelly on a shell made with engineering plastics is topped bar is fixed with two wiring copper posts, copper post is bolted with a clamp nut respectively, each nut is respectively equipped with helmet, divider wall is had between helmet, the tubular yoke that an interior envelope curve circle bottom surface is recessed is provided with below step in shell, tubular yoke is built with the dynamic work durm of one piece of upper surface indent, on tubular yoke, concentric is equipped with push bracket, adjusting rod below push bracket is spirally connected through tubular yoke center and the back-moving spring be arranged in dynamic work durm and dynamic work durm, regulating tank is had bottom dynamic work durm, plywood is divided by pressure overshoot spring supporting red copper in card holder centre bore above push bracket, above dividing plywood, both sides are respectively equipped with moving contact, two copper column bottoms are provided with fixed contact, a deciliter room is provided with between sound contact, deciliter indoor are provided with temperature sensing sensor, deciliter outer casing inner wall of both sides, room is provided with a secondary strong magnet by yoke, outer casing underpart side inwall is provided with circuit control panel, its electric wire is drawn from stepped hole through sealing shroud.Although it has, dielectric voltage withstand rank is high, volume is little, lightweight, energy consumption is low, the advantage that the life-span is long, because do not have overheated, overload-alarm and short circuit cutting function, there is certain unsafe factor.
Summary of the invention
The object of this invention is to provide the large-current electromagnetic relay that a kind of withstand voltage rank is high, volume is little, lightweight, energy consumption is low, the life-span grows use safety and reliability.
Technical scheme of the present invention completes as follows, a kind of large-current electromagnetic relay, it comprises an energy-saving high-current electromagnetic relay, it is characterized in that: insert with draw-in groove on the square housing both sides step of an energy-saving high-current electromagnetic relay and be fixed with the sampling assembly that both sides connect into right angle, the side inwall of sampling assembly is provided with an electronic sensor circuit board, inwardly lead to two temperature sampling connecting rings be connected with two wiring copper posts respectively on circuit boards, the current sample magnetic guiding loop be connected with circuit board is parallel with below a connecting ring, be provided with temperature-control circuit on circuit boards, current control circuit, warning circuit and cut-out executive circuit, temperature-control circuit is connected with a diode D1 at positive source joint N end, diode D1 negative pole is parallel with two temperature sensor Q2 and Q3, resistance R3 is in series with between the output and power cathode joint E of temperature sensor Q3, R4, a triode Q4 is connected with between resistance R3 and R4, the collector electrode of triode is connected on a signal output connector K, emitter is connected on power cathode joint E, warning circuit is connected in parallel to a resistance R5 at the output of temperature sensor Q2 and Q3, and the other end of resistance R5 is connected with a red light emitting diodes D3, and the other end of light-emitting diode D3 is connected on power cathode joint E, current control circuit is connected with an electric capacity C at the negative pole end of diode D1, the other end of electric capacity C is connected with current-limiting resistance R1, the current-limiting resistance R1 other end is connected to an a current sensor Q1 and voltage stabilizing didoe D2, and the output of current sensor Q1 is connected to a signal through resistance R2 and amplifies on output end connector K, cutting off executive circuit is be connected on power cathode joint E by the coil negative pole of electromagnetic relay J, and relay coil positive pole is connected on assembly positive terminal M, and two copper posts of electromagnetic relay J are respectively equipped with external load power supply connector V, L, positive source joint N, anode connector E, relay coil positive terminal M and signal amplify out splice going splice K and are arranged on the plug outside assembly successively, plug is furnished with one and draws the connector socket of wire by below, correspondingly with red light emitting diodes D3 between two copper posts on assembly be provided with a transparent area.
After the present invention sets up an overload overheat sensor in prior art, not only have that withstand voltage rank is high, volume is little, energy consumption is low, effect that the life-span is long, and use safer, can also and alarm and cut-out external load power supply circuits.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention; Fig. 2 is the sampling assembly structure schematic diagram being provided with sensor circuit board; Fig. 3 is the relay construction schematic diagram after taking off sampling assembly; Fig. 4 is this practical electrical schematic diagram.
Embodiment:
Describe embodiment in detail by reference to the accompanying drawings, the present invention is improvements over the prior art, main improvement inserts with draw-in groove 3 to be fixed with the sampling assembly 2 that both sides connect into right angle on the square housing both sides step 12 of an energy-saving high-current electromagnetic relay 1, the side inwall of sampling assembly is provided with an electronic sensor circuit board 11, inwardly lead to two temperature sampling connecting rings 5 and 7 be connected with two wiring copper posts 6 respectively on circuit boards, the current sample magnetic guiding loop 4 be connected with circuit board is parallel with below connecting ring 5, be provided with temperature-control circuit on circuit boards, current control circuit, warning circuit and cut-out executive circuit, temperature-control circuit is connected with a diode D1 at positive source joint N end, diode cathode is parallel with two temperature sensor Q2 and Q3, resistance R3 is in series with between the output and power cathode joint E of temperature sensor Q3, R4, a triode Q4 is connected with between resistance R3 and R4, the collector electrode of triode is connected on a signal output connector K, emitter is connected on power cathode joint E, warning circuit is connected in parallel to a resistance R5 at the output of temperature sensor Q2 and Q3, and the other end of resistance R5 is connected with a red light emitting diodes D3, and the other end of light-emitting diode D3 is connected on power cathode joint E, current control circuit is connected with an electric capacity C at the negative pole end of diode D1, the other end of electric capacity C is connected with current-limiting resistance R1, the current-limiting resistance R1 other end is connected to an a current sensor Q1 and voltage stabilizing didoe D2, and the output of current sensor Q1 is connected to a signal through resistance R2 and amplifies on output end connector K, cutting off executive circuit is be connected on anode connector E by the coil negative pole of electromagnetic relay J, and relay coil positive pole is connected on assembly positive terminal M, and two copper posts of electromagnetic relay J are respectively equipped with external load power supply connector V and L, positive source joint N, anode connector E, relay coil positive terminal M and signal amplify out splice going splice K and are arranged on the plug 9 outside assembly successively, plug is furnished with one and draws the connector socket 8 of wire by below, correspondingly with red light emitting diodes D3 between two copper posts on sampling assembly be provided with a transparent area 10.
Operation principle of the present invention is: positive source joint introduce direct current through diode D1 to current sensor Q1 and two temperature sensor Q2, Q3 powers, current sensor Q1 when current is excessive after current sample assembly dynamic sampling amplifies out splice going splice K output signal by resistance R2 to signal, when temperature is too high, by temperature sampling end dynamic sampling, two temperature sensor Q2, Q3 is through resistance R3, the phase inverter that R4 and triode Q4 forms holds output signal to out splice going splice K, light red light emitting diodes D3 through output current simultaneously, relay coil anode plug M terminal voltage is disconnected after being received by external circuits after out splice going splice K end receives signal, cut off V, connection between L, reach the object of protection power supply safety.
Claims (1)
1. a large-current electromagnetic relay, it is characterized in that: insert with draw-in groove on the square housing both sides step of described large-current electromagnetic relay and be fixed with the sampling assembly that both sides connect into right angle, the side inwall of sampling assembly is provided with an electronic sensor circuit board, inwardly lead to two temperature sampling connecting rings be connected with two wiring copper posts respectively on circuit boards, the current sample magnetic guiding loop be connected with circuit board is parallel with below a connecting ring, be provided with temperature-control circuit on circuit boards, current control circuit, warning circuit and cut-out executive circuit, temperature-control circuit is connected with a diode D1 at positive source joint N end, diode D1 negative pole is parallel with two temperature sensor Q2 and Q3, resistance R3 is in series with between the output and power cathode joint E of temperature sensor Q3, R4, a triode Q4 is connected with between resistance R3 and R4, the collector electrode of triode Q4 is connected on a signal output connector K, emitter is connected on power cathode joint E, warning circuit is connected in parallel to a resistance R5 at the output of temperature sensor Q2 and Q3, and the other end of resistance R5 is connected with a red light emitting diodes D3, and the other end of light-emitting diode D3 is connected on power cathode joint E, current control circuit is connected with an electric capacity C at the negative pole end of diode D1, the other end of electric capacity C is connected with current-limiting resistance R1, the current-limiting resistance R1 other end is connected to an a current sensor Q1 and voltage stabilizing didoe D2, and the output of current sensor Q1 is connected to a signal through resistance R2 and amplifies on output end connector K, cutting off executive circuit is be connected on power cathode joint E by the coil negative pole of electromagnetic relay J, and relay coil positive pole is connected on assembly positive terminal M, and two copper posts of electromagnetic relay J are respectively equipped with external load power supply connector V, L, positive source joint N, anode connector E, relay coil positive terminal M and signal amplify out splice going splice K and are arranged on the plug outside assembly successively, plug is furnished with one and draws the connector socket of wire by below, correspondingly with red light emitting diodes D3 between two copper posts on assembly be provided with a transparent area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310692262.4A CN103681108B (en) | 2013-12-18 | 2013-12-18 | Large-current electromagnetic relay |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310692262.4A CN103681108B (en) | 2013-12-18 | 2013-12-18 | Large-current electromagnetic relay |
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| Publication Number | Publication Date |
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| CN103681108A CN103681108A (en) | 2014-03-26 |
| CN103681108B true CN103681108B (en) | 2015-06-24 |
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| CN201310692262.4A Active CN103681108B (en) | 2013-12-18 | 2013-12-18 | Large-current electromagnetic relay |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104241030B (en) * | 2014-08-29 | 2015-12-02 | 宁波市鄞州永林电子电器有限公司 | A kind of twin coil relay for automobile and assemble method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1088362A (en) * | 1992-12-17 | 1994-06-22 | 张世兴 | Mult-functional universal contactor |
| CN201146457Y (en) * | 2008-01-22 | 2008-11-05 | 北京机械工业自动化研究所 | Special thick film circuit for drive and control of IPM power switch device |
| CN201388040Y (en) * | 2009-04-24 | 2010-01-20 | 宁波市镇海匡正电子科技有限公司 | Electricity rationing controller |
| EP2159812A1 (en) * | 2008-08-25 | 2010-03-03 | SANYO Electric Co., Ltd. | Over current protection device |
| CN203607337U (en) * | 2013-12-18 | 2014-05-21 | 新乡市光明电器有限公司 | Large-current electromagnetic relay |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5423482B2 (en) * | 2010-03-03 | 2014-02-19 | アンデン株式会社 | Semiconductor latch relay |
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- 2013-12-18 CN CN201310692262.4A patent/CN103681108B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1088362A (en) * | 1992-12-17 | 1994-06-22 | 张世兴 | Mult-functional universal contactor |
| CN201146457Y (en) * | 2008-01-22 | 2008-11-05 | 北京机械工业自动化研究所 | Special thick film circuit for drive and control of IPM power switch device |
| EP2159812A1 (en) * | 2008-08-25 | 2010-03-03 | SANYO Electric Co., Ltd. | Over current protection device |
| CN201388040Y (en) * | 2009-04-24 | 2010-01-20 | 宁波市镇海匡正电子科技有限公司 | Electricity rationing controller |
| CN203607337U (en) * | 2013-12-18 | 2014-05-21 | 新乡市光明电器有限公司 | Large-current electromagnetic relay |
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| CN103681108A (en) | 2014-03-26 |
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