CN203151410U - Automatic switching controller for realizing mutual spare of two electric motors - Google Patents
Automatic switching controller for realizing mutual spare of two electric motors Download PDFInfo
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- CN203151410U CN203151410U CN 201320160181 CN201320160181U CN203151410U CN 203151410 U CN203151410 U CN 203151410U CN 201320160181 CN201320160181 CN 201320160181 CN 201320160181 U CN201320160181 U CN 201320160181U CN 203151410 U CN203151410 U CN 203151410U
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Abstract
The utility model relates to electric motor operation controllers and especially relates to an automatic switching controller for realizing mutual spare of two electric motors. The automatic switching controller for realizing mutual spare of the two electric motors is characterized in that a core of a control circuit of the automatic switching controller for realizing mutual spare of the two electric motors is composed of a time relay KT and an intermediate relay KA; and the automatic switching control of the mutual spare of the two electric motors is realized by combining with auxiliary contacts of a contactor KM1 and a contactor KM2, normally-closed contacts of a thermal relay FR1 and a thermal relay FR2, a toggle switch SB and a toggle switch SB1. According to the utility model, a prior control circuit is improved and the integral controller is formed through combination of a comparatively small quantity of electrical components, so that the control circuit is simplified and the convenience is made for maintenance.
Description
Technical field
The utility model relates to motor operation controller, and especially a kind of two motors the using and the reserved are standby automatic switchover controller each other.
Background technology
Fire demand water can be installed two (the using and the reserved) water pumps generally speaking as the self water feeding pressurization at water source at present, usefulness in order to fire extinguishing, simultaneously in order to ensure the continuity that supplies water with reduce the fault of water management system, require to adopt the standby automatic switchover working method of two pressure pump-usefulness-fully each other.In addition, need two motors (water pump) standby automatic starting each other to switch and can realize that 1# is equipped with 2# in recent years, 2# is also more and more with the place that 1# is equipped with, but in the prior art, the commutation circuit of two pump motors is very complicated, the kind of electric elements and quantity are used more, and the maintenance overhaul difficulty.
Summary of the invention
The purpose of this utility model is to provide that a kind of electric elements are few, control circuit is simple and clear, functional reliability is high, and motor power (output) can use large or small, can realize two motors the using and the reserved standby automatic switchover controller each other.
By reference to the accompanying drawings, below the utility model specific structural features is described in detail.
The utility model discloses a kind of two motors the using and the reserved standby automatic switchover controller each other, secondary control action with two motors 1#, 2# standby automatic switchover each other, pass through circuit breaker Q F with three phase mains L1, L2, L3, the control circuit that connects main circuit and above-mentioned automatic switchover controller more respectively, main circuit is that control circuit provides the switching controls of two motors standby automatic switchover each other and uses for connection two motors usefulness;
Described main circuit is connected respectively to the suitable for reading of main circuit contact device KM1, KM2 by circuit breaker Q F, the end opening of contactor KM1, KM2 respectively with thermal relay FR1, FR2 connects, the 1# motor is connected with FR1, the 2# motor is connected with FR2, but the adhesive across-the-line starting operation of motor this moment by contactor KM1, KM2;
It is characterized in that: the core of described control circuit is made up of a time relay KT and an auxiliary relay KA's, finishes two motors standby automatic switchover control each other in conjunction with normally closed interlock, toggle switch SB, the SB1 of auxiliary contact, thermal relay FR1 and the FR2 of contactor KM1 and KM2;
In the described control circuit, be connected to control circuit fuse FU by the L3 power line, be divided into two branch roads, a branch road links to each other with indicator light D, connects zero line again, and another branch road links to each other with 1 end of toggle switch SB, and is in series with automatic short-circuit signal P; In this control circuit, U is phase line, N is zero line, and the common port 3 of described SB can connect terminal 1, the terminal 2 of SB respectively, common port 3 and its terminal 1 closure of SB can be manual control, when the common port of SB and its terminal 2 closures, phase line U is connected to short circuit signal P point one end, during P point short circuit, phase line U and the P point other end are connected, and give the subsequent control circuit supply; Described zero line N respectively with an end of auxiliary relay KA coil, an end of time relay KT coil, an end of the normally closed interlock of thermal relay FR1, FR2 connects; Be connected to the end of short circuit signal P behind the auxiliary relay KA coil other end place branch road series connection push-button switch SB1, push-button switch SB1 is that 1# is equipped with 2# when disconnecting, when push-button switch SB1 is closed, for 2# is equipped with 1#; The coil of thermal relay normally closed interlock FR1 place branch road series contactor KM1, the other end of KM1 coil is told two branch roads, a branch road is through a pair of KT normally open contact KT-1, a pair of KA normally open contact KA-1 is connected to the end of short circuit signal P, another branch road is through a pair of normally closed interlock KA-4 of KA, and a pair of normally closed interlock KM2-1 of contactor KM2 is connected to the end of short circuit signal P; The coil of thermal relay normally closed interlock FR2 place branch road series contactor KM2, the other end of KM2 coil is told two branch roads, a branch road is through a pair of KT normally open contact KT-2, a pair of KA normally closed interlock KA-6 is connected to the end of short circuit signal P, another branch road is through a pair of normally open contact KA-3 of KA, and a pair of normally closed interlock KM1-1 of KM1 is connected to the end of short circuit signal P; The KT coil is connected respectively to the end of KM2 normally closed interlock KM2-1, the end of KM1 normally closed interlock KM1-1 through a pair of KA normally open contact KA-2, a pair of KA normally closed interlock KA-5.
Said structure is motor power (output) during less than 10KW, and main circuit need not pass through the control circuit of the starting of star triangle, self-coupling decompression starting, soft start, frequency converter, directly is connected with thermal relay FR1, FR2.
When motor power (output) during greater than 10KW, described main circuit is connected to the suitable for reading of control circuit fuse FU and main circuit contact device KM1, KM2 by circuit breaker Q F, the end opening of contactor KM1, KM2 connects the main circuit of the starting of star triangle, self-coupling decompression starting, soft start, frequency converter, is connected with 1# motor, 2# motor respectively by thermal relay FR1, FR2 again; The control circuit of the starting of star triangle, self-coupling decompression starting, soft start, frequency converter is connected on contactor KM1, KM2 and often opens in the auxiliary contact, when contactor KM1, its main contact of KM2 adhesive, the closed control circuit of the starting of star triangle, self-coupling decompression starting, soft start, frequency converter of giving of auxiliary contact provides the starting operation signal, the motor starting operation.
The core of control circuit of the present utility model is only to need to use 1 time relay KT and 1 miniature intermediate relay KA, and in conjunction with normally closed interlock and the coil of A.C. contactor KM1 and KM2, thermal relay FR1, the normally closed interlock of FR2, can finish the standby automatic switchover each other of two motors (water pump), for the motor (water pump) of power below 10kW, major loop can use directly that KM1 and KM2's often open main contact, come line-start motor (water pump), for the motor (water pump) of power greater than 10kW, the main contact of often opening of KM1 and KM2 can be used for star triangle reduced voltage starting, self-coupling decompression starting, soft start, in the control circuit of frequency converter.
In use, when SB1 disconnected, phase line U powered on for the KM1 coil through KM2 normally closed interlock, KA normally closed interlock, the 1# electric motor normal working, if the 1# motor fault causes KM1 decompression or FR1 and disconnect that KM1 returns to normal, phase line U gives the KT coil power supply through KM1 normally closed interlock, KA normally closed interlock, KT starts working, after time-delay, KT normally open contact closure, phase line U gives the KM2 coil power supply through KA normally closed interlock and KT timing closing contact, the 2# motor is started working, and finishes 1# and is equipped with 2#; When SB1 is closed, the auxiliary relay KA adhesive that powers on, three pairs of normally open contact closures of KA, three pairs of normally closed interlocks disconnect, phase line U powers on for the KM2 coil through KM1 normally closed interlock and closed KA normally open contact, the 2# electric motor normal working, if the 2# motor fault causes KM2 decompression or FR2 and disconnects, KM2 returns to normal, and phase line U is through the KM2 normally closed interlock, and Bi He KA normally open contact is given the KT coil power supply, KT starts working, after time-delay, KT normally open contact closure, phase line U gives the KM1 coil power supply through KA closed normally open contact and KT timing closing contact, the 1# motor is started working, and finishes 2# and is equipped with 1#.
Standby automatic control circuit is complicated each other with respect to general control two motors (water pump), electric elements use more, maintenance is the defective of difficulty comparatively, the utility model improves existing control circuit, use less electric elements to be combined into whole controller, control circuit is oversimplified, and maintenance is convenient.
Description of drawings
Fig. 1 is the control circuit structural representation of the utility model embodiment 1.Under the energising situation, toggle switch SB1 closure, auxiliary relay KA coil gets the state diagram of electric adhesive.
This moment, phase line L3 passed through the normally closed auxiliary contact KM1-1 of contactor KM1, the closed coil with contactor KM2 of the contact KA-3 of auxiliary relay KA is connected, contactor KM2 coil gets electric adhesive work, barrier causes contactor KM2 coil decompression or moves because motor (water pump) overload causes thermal relay FR2 for some reason, its normally closed interlock disconnects, contactor KM2 coil losing electricity returns to normal, this moment, phase line L3 passed through the normally closed auxiliary contact KM2-1 of contactor KM2, the closed contact KA-2 of auxiliary relay KA and time relay KT coil are connected, time relay coil gets electric work, the closed contact KT-1 of its on-delay, the KT-2 closure, phase line L3 is by the closed contact KA-1 of auxiliary relay KA, the coil of the closed contact KT-1 of time relay KT on-delay and contactor KM1 is connected, contactor KM1 coil gets electric adhesive work, 1# motor (water pump) work, after 2# motor (water pump) fault is got rid of, it is normal that its circuit recovers, if 1# motor (water pump) breaks down, 2# motor (water pump) can be devoted oneself to work again, finishes the work that motor (water pump) 2# is equipped with 1#.
Fig. 2 for the utility model when main circuit and the control circuit structural representation of motor power (output) during less than 10KW.
Motor (water pump) power is during less than 10KW, three phase mains L1, L2, L3 are connected to control circuit fuse FU and main circuit contact device KM1 by circuit breaker Q F, KM2's is suitable for reading, contactor KM1, the end opening of KM2 and thermal relay FR1, FR2 connects, 1# motor (water pump) is connected with FR1,2# motor (water pump) is connected with FR2, and motor this moment (water pump) is by contactor KM1, but the adhesive across-the-line starting of KM2 operation.
Fig. 3 for the utility model when main circuit and the control circuit structural representation of motor power (output) during greater than 10KW.
Motor (water pump) power is during greater than 10KW, three phase mains L1, L2, L3 are connected to contactor KM1 by circuit breaker Q F, it is suitable for reading that KM2 often opens main contact, its end opening connects the end of incoming cables of the starting of star triangle, self-coupling decompression starting, soft start, frequency converter, its outlet connects thermal relay FR1, FR2, thermal relay FR1, FR2 connect 1# motor (water pump), 2# motor (water pump) respectively, can be in contactor KM1 when soft start, frequency converter use, and the KM2 reversing of position.The control circuit of star triangle, self-coupling decompression, soft start, varying frequency starting is connected on contactor KM1, and KM2 often opens in the auxiliary contact, is used for their starting operation of control.
Embodiment
Embodiment 1:
With reference to Fig. 1, Fig. 2, Fig. 3, a kind of two motors the using and the reserved are standby automatic switchover controller each other, secondary control action with two motors 1#, 2# standby automatic switchover each other, pass through circuit breaker Q F with three phase mains L1, L2, L3, the control circuit that connects main circuit and above-mentioned automatic switchover controller more respectively, main circuit is that control circuit provides the switching controls of two motors standby automatic switchover each other and uses for connection two motors usefulness;
Described main circuit is connected respectively to the suitable for reading of main circuit contact device KM1, KM2 by circuit breaker Q F, the end opening of contactor KM1, KM2 respectively with thermal relay FR1, FR2 connects, the 1# motor is connected with FR1, the 2# motor is connected with FR2, but the adhesive across-the-line starting operation of motor this moment by contactor KM1, KM2;
It is characterized in that: the core of described control circuit is made up of a time relay KT and an auxiliary relay KA's, finishes two motors standby automatic switchover control each other in conjunction with normally closed interlock, toggle switch SB, the SB1 of auxiliary contact, thermal relay FR1 and the FR2 of contactor KM1 and KM2;
In the described control circuit, be connected to control circuit fuse FU by the L3 power line, be divided into two branch roads, a branch road links to each other with indicator light D, connects zero line again, and another branch road links to each other with 1 end of toggle switch SB, and is in series with automatic short-circuit signal P; In this control circuit, U is phase line, N is zero line, and the common port 3 of described SB can connect terminal 1, the terminal 2 of SB respectively, common port 3 and its terminal 1 closure of SB can be manual control, when the common port of SB and its terminal 2 closures, phase line U is connected to short circuit signal P point one end, during P point short circuit, phase line U and the P point other end are connected, and give the subsequent control circuit supply; Described zero line N respectively with an end of auxiliary relay KA coil, an end of time relay KT coil, an end of the normally closed interlock of thermal relay FR1, FR2 connects; Be connected to the end of short circuit signal P behind the auxiliary relay KA coil other end place branch road series connection push-button switch SB1, push-button switch SB1 is that 1# is equipped with 2# when disconnecting, when push-button switch SB1 is closed, for 2# is equipped with 1#; The coil of thermal relay normally closed interlock FR1 place branch road series contactor KM1, the other end of KM1 coil is told two branch roads, a branch road is through a pair of KT normally open contact KT-1, a pair of KA normally open contact KA-1 is connected to the end of short circuit signal P, another branch road is through a pair of normally closed interlock KA-4 of KA, and a pair of normally closed interlock KM2-1 of contactor KM2 is connected to the end of short circuit signal P; The coil of thermal relay normally closed interlock FR2 place branch road series contactor KM2, the other end of KM2 coil is told two branch roads, a branch road is through a pair of KT normally open contact KT-2, a pair of KA normally closed interlock KA-6 is connected to the end of short circuit signal P, another branch road is through a pair of normally open contact KA-3 of KA, and a pair of normally closed interlock KM1-1 of KM1 is connected to the end of short circuit signal P; The KT coil is connected respectively to the end of KM2 normally closed interlock KM2-1, the end of KM1 normally closed interlock KM1-1 through a pair of KA normally open contact KA-2, a pair of KA normally closed interlock KA-5.
Said structure is motor power (output) during less than 10KW, and main circuit need not pass through the control circuit of the starting of star triangle, self-coupling decompression starting, soft start, frequency converter, directly is connected with thermal relay FR1, FR2.
Embodiment 2:
With reference to accompanying drawing, compare with embodiment 1, the difference of present embodiment is when motor power (output) during greater than 10KW, described main circuit is connected to the suitable for reading of control circuit fuse FU and main circuit contact device KM1, KM2 by circuit breaker Q F, the end opening of contactor KM1, KM2 connects the main circuit of the starting of star triangle, self-coupling decompression starting, soft start, frequency converter, is connected with 1# motor, 2# motor respectively by thermal relay FR1, FR2 again; The control circuit of the starting of star triangle, self-coupling decompression starting, soft start, frequency converter is connected on contactor KM1, KM2 and often opens in the auxiliary contact, when contactor KM1, its main contact of KM2 adhesive, the closed control circuit of the starting of star triangle, self-coupling decompression starting, soft start, frequency converter of giving of auxiliary contact provides the starting operation signal, the motor starting operation.
Claims (2)
1. two motors the using and the reserved standby automatic switchover controller each other, secondary control action with two motors 1#, 2# standby automatic switchover each other, pass through circuit breaker Q F with three phase mains L1, L2, L3, the control circuit that connects main circuit and above-mentioned automatic switchover controller more respectively, main circuit is that control circuit provides the switching controls of two motors standby automatic switchover each other and uses for connection two motors usefulness;
Described main circuit is connected respectively to the suitable for reading of main circuit contact device KM1, KM2 by circuit breaker Q F, the end opening of contactor KM1, KM2 respectively with thermal relay FR1, FR2 connects, the 1# motor is connected with FR1, the 2# motor is connected with FR2, but the adhesive across-the-line starting operation of motor this moment by contactor KM1, KM2;
It is characterized in that: the core of described control circuit is made up of a time relay KT and an auxiliary relay KA's, finishes two motors standby automatic switchover control each other in conjunction with normally closed interlock, toggle switch SB, the SB1 of auxiliary contact, thermal relay FR1 and the FR2 of contactor KM1 and KM2;
In the described control circuit, be connected to control circuit fuse FU by the L3 power line, be divided into two branch roads, a branch road links to each other with indicator light D, connects zero line again, and another branch road links to each other with 1 end of toggle switch SB, and is in series with automatic short-circuit signal P; In this control circuit, U is phase line, N is zero line, and the common port 3 of described SB can connect terminal 1, the terminal 2 of SB respectively, common port 3 and its terminal 1 closure of SB can be manual control, when the common port of SB and its terminal 2 closures, phase line U is connected to short circuit signal P point one end, during P point short circuit, phase line U and the P point other end are connected, and give the subsequent control circuit supply; Described zero line N respectively with an end of auxiliary relay KA coil, an end of time relay KT coil, an end of the normally closed interlock of thermal relay FR1, FR2 connects; Be connected to the end of short circuit signal P behind the auxiliary relay KA coil other end place branch road series connection push-button switch SB1, push-button switch SB1 is that 1# is equipped with 2# when disconnecting, when push-button switch SB1 is closed, for 2# is equipped with 1#; The coil of thermal relay normally closed interlock FR1 place branch road series contactor KM1, the other end of KM1 coil is told two branch roads, a branch road is through a pair of KT normally open contact KT-1, a pair of KA normally open contact KA-1 is connected to the end of short circuit signal P, another branch road is through a pair of normally closed interlock KA-4 of KA, and a pair of normally closed interlock KM2-1 of contactor KM2 is connected to the end of short circuit signal P; The coil of thermal relay normally closed interlock FR2 place branch road series contactor KM2, the other end of KM2 coil is told two branch roads, a branch road is through a pair of KT normally open contact KT-2, a pair of KA normally closed interlock KA-6 is connected to the end of short circuit signal P, another branch road is through a pair of normally open contact KA-3 of KA, and a pair of normally closed interlock KM1-1 of KM1 is connected to the end of short circuit signal P; The KT coil is connected respectively to the end of KM2 normally closed interlock KM2-1, the end of KM1 normally closed interlock KM1-1 through a pair of KA normally open contact KA-2, a pair of KA normally closed interlock KA-5.
2. two motors the using and the reserved as claimed in claim 1 standby automatic switchover controller each other, it is characterized in that when motor power (output) during greater than 10KW, described main circuit is connected to the suitable for reading of control circuit fuse FU and main circuit contact device KM1, KM2 by circuit breaker Q F, the end opening of contactor KM1, KM2 connects the main circuit of the starting of star triangle, self-coupling decompression starting, soft start, frequency converter, is connected with 1# motor, 2# motor respectively by thermal relay FR1, FR2 again; The control circuit of the starting of star triangle, self-coupling decompression starting, soft start, frequency converter is connected on contactor KM1, KM2 and often opens in the auxiliary contact, when contactor KM1, its main contact of KM2 adhesive, the closed control circuit of the starting of star triangle, self-coupling decompression starting, soft start, frequency converter of giving of auxiliary contact provides the starting operation signal, the motor starting operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320160181 CN203151410U (en) | 2013-04-02 | 2013-04-02 | Automatic switching controller for realizing mutual spare of two electric motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320160181 CN203151410U (en) | 2013-04-02 | 2013-04-02 | Automatic switching controller for realizing mutual spare of two electric motors |
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| Publication Number | Publication Date |
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| CN203151410U true CN203151410U (en) | 2013-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320160181 Expired - Fee Related CN203151410U (en) | 2013-04-02 | 2013-04-02 | Automatic switching controller for realizing mutual spare of two electric motors |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121176A (en) * | 2014-07-26 | 2014-10-29 | 徐家成 | Water pump control device |
| CN104121175A (en) * | 2014-07-26 | 2014-10-29 | 徐家成 | Water pump control method |
| CN104405627A (en) * | 2014-10-29 | 2015-03-11 | 安徽鑫龙电器股份有限公司 | Electric generator cooling water pump control cabinet |
| CN110259675A (en) * | 2019-06-21 | 2019-09-20 | 泰豪科技股份有限公司 | Water circulating pump band cooling blower frequency conversion one drag two control circuit and system |
| CN113938085A (en) * | 2021-10-18 | 2022-01-14 | 青海引大济湟工程综合开发有限责任公司 | Automatic alternate control system for two motors |
-
2013
- 2013-04-02 CN CN 201320160181 patent/CN203151410U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121176A (en) * | 2014-07-26 | 2014-10-29 | 徐家成 | Water pump control device |
| CN104121175A (en) * | 2014-07-26 | 2014-10-29 | 徐家成 | Water pump control method |
| CN104405627A (en) * | 2014-10-29 | 2015-03-11 | 安徽鑫龙电器股份有限公司 | Electric generator cooling water pump control cabinet |
| CN104405627B (en) * | 2014-10-29 | 2017-04-19 | 安徽中电兴发与鑫龙科技股份有限公司 | Electric generator cooling water pump control cabinet |
| CN110259675A (en) * | 2019-06-21 | 2019-09-20 | 泰豪科技股份有限公司 | Water circulating pump band cooling blower frequency conversion one drag two control circuit and system |
| CN110259675B (en) * | 2019-06-21 | 2024-06-11 | 泰豪科技股份有限公司 | Variable-frequency one-to-two control circuit and system for circulating water pump with cooling fan |
| CN113938085A (en) * | 2021-10-18 | 2022-01-14 | 青海引大济湟工程综合开发有限责任公司 | Automatic alternate control system for two motors |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20170402 |
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| CF01 | Termination of patent right due to non-payment of annual fee |