CN220605223U - Secondary control circuit for intelligent low-voltage flameproof lighting cabinet - Google Patents
Secondary control circuit for intelligent low-voltage flameproof lighting cabinet Download PDFInfo
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- CN220605223U CN220605223U CN202322071359.5U CN202322071359U CN220605223U CN 220605223 U CN220605223 U CN 220605223U CN 202322071359 U CN202322071359 U CN 202322071359U CN 220605223 U CN220605223 U CN 220605223U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The utility model provides a secondary control circuit for an intelligent low-voltage explosion-proof lighting cabinet, which comprises a comprehensive protector ZB, an electric operating mechanism CZ, a change-over switch SA1, a main breaker QF, a coil of a contactor KM, a relay KA1, a relay CK5, a relay CK6, a relay CK10, a relay CK11, a travel switch S8, a travel switch S9, a button switch K4-SY, a button switch K3-XY, a button switch K1-QR, a button switch K2-FW, a button self-locking switch K5-ZM, a button self-locking switch K6-HZFZ, a button switch K10-FZ and a button switch K11-HZ; the electric operating mechanism CZ controls the on-off of the main breaker QF; the intelligent low-voltage explosion-proof lighting cabinet can realize the on-site or remote control of the intelligent low-voltage explosion-proof lighting cabinet, and has complete control functions; the protection device has a strong protection function, and can force not to perform closing operation when faults occur.
Description
Technical Field
The utility model belongs to the technical field of power distribution of low-voltage flameproof lighting cabinets, and particularly relates to a secondary control circuit for an intelligent low-voltage flameproof lighting cabinet.
Background
The low-voltage flameproof lighting cabinet is generally used for occasions needing flameproof such as mines and can provide electrical control for lighting equipment in the mines.
The low-voltage flameproof lighting cabinet is generally internally provided with more electric elements, and whether the circuit design of the low-voltage flameproof lighting cabinet is reasonable or not is related to the safety of a mine.
Therefore, the low-voltage flameproof lighting cabinet needs a circuit with safe and reliable all the time and perfect control function and protection function.
Disclosure of Invention
Aiming at the defects existing in the prior art, the embodiment of the utility model provides a secondary control circuit for an intelligent low-voltage flameproof lighting cabinet, which has complete control function and protection function, can be controlled on site or remotely and has high use safety. In order to achieve the technical purpose, the technical scheme adopted by the embodiment of the utility model is as follows:
the embodiment of the utility model provides a secondary control circuit for an intelligent low-voltage explosion-proof lighting cabinet, which comprises a comprehensive protector ZB, an electric operating mechanism CZ, a change-over switch SA1, a main breaker QF, a coil of a contactor KM, a relay KA1, a relay CK5, a relay CK6, a relay CK10, a relay CK11, a travel switch S8, a travel switch S9, a button switch K4-SY, a button switch K3-XY, a button switch K1-QR, a button switch K2-FW, a button self-locking switch K5-ZM, a button self-locking switch K6-HZFZ, a button switch K10-FZ and a button switch K11-HZ; the electric operating mechanism CZ controls the on-off of the main breaker QF;
the common termination common line of the integrated protector ZB; two ends of the button switch K4-SY are respectively connected with an upper input end of a keyboard of the comprehensive protector ZB and a common line; two ends of the button switch K3-XY are respectively connected with a keyboard-lower input end of the comprehensive protector ZB and a common line; two ends of the button switches K1-QR are respectively connected with a keyboard-confirmation end of the comprehensive protector ZB and a common line; two ends of the button switches K2-FW are respectively connected with a keyboard-reset end of the comprehensive protector ZB and a common line; two ends of a first link SA1-1 of the change-over switch SA1 are respectively connected with a remote control state input end of the comprehensive protector ZB and a common line; the two ends of the first link of the travel switch S9 are respectively connected with the working position input end of the comprehensive protector ZB and the common line, and the two ends of the first link of the travel switch S8 are respectively connected with the test position input end of the comprehensive protector ZB and the common line;
one end of the second linkage of the travel switch S9 is connected with one end of the second linkage of the travel switch S8 and is connected with a live wire L0, the other end of the second linkage of the travel switch S9 is connected with the other end of the second linkage of the travel switch S8 and is connected with a power end of an electric operating mechanism CZ, and a grounding end of the electric operating mechanism CZ is connected with a neutral wire N0; one end of a second linkage SA1-2 of the change-over switch SA1 is connected with the public end of the electric operating mechanism CZ, the other end of the second linkage SA1-2 is connected with one end of a normally open contact CK11-1 of the relay CK11, the other end of the normally open contact CK11-1 of the relay CK11 is connected with one end of a protection contact ZB-1 of the comprehensive protector ZB, and the other end of the protection contact ZB-1 of the comprehensive protector ZB is connected with the first input end of the electric operating mechanism CZ; one end of a third link SA1-3 of the change-over switch SA1 is connected with the public end of the electric operating mechanism CZ, the other end of the third link SA1-3 is connected with one end of a control contact ZB-2 of the comprehensive protector ZB, and the other end of the control contact ZB-2 of the comprehensive protector ZB is connected with one end of a protection contact ZB-1; one end of a normally open contact CK10-1 of the relay CK10 is connected with a public end of the electric operating mechanism CZ, and the other end of the normally open contact CK10-1 of the relay CK10 is connected with a second input end of the electric operating mechanism CZ; one end of a control contact ZB-3 of the comprehensive protector ZB is connected with the other end of a third link SA1-3 of the change-over switch SA1, and the other end of the control contact ZB is connected with a second input end of the electric operating mechanism CZ;
one end of the control contact ZB-5 of the comprehensive protector ZB is connected with the live wire L1, the other end is connected with one end of the heater JR1, and the other end of the heater JR1 is connected with the neutral wire N1; one end of a normally open contact CK5-1 of the relay CK5 is connected with a fire line L1, the other end of the normally open contact CK5 is connected with one end of an illuminating lamp EL, and the other end of the illuminating lamp EL is connected with a neutral line N1; one end of a control contact ZB-6 of the comprehensive protector ZB is connected with a fire wire L1, and the other end is connected with one end of an illuminating lamp EL;
one end of the main breaker QF is connected with a fire wire L0, and the other end is connected with one end of a fourth link SA1-4 of the change-over switch SA1 and one end of a fifth link SA1-5 of the change-over switch SA; the other end of the fourth link SA1-4 of the change-over switch SA1 is connected with one end of a normally open contact KA1-1 of the relay KA1 and one end of a normally open contact CK6-1 of the relay CK 6; the other end of the normally open contact KA1-1 of the relay KA1 is connected with one end of a protection contact ZB-7 of the comprehensive protector ZB, the other end of the protection contact ZB-7 of the comprehensive protector ZB is connected with one end of a coil of the contactor KM, and the other end of the coil of the contactor KM is connected with a neutral line N0; the other end of the normally open contact CK6-1 of the relay CK6 is connected with one end of a coil of the relay KA1, and the other end of the coil of the relay KA1 is connected with a neutral line N0; the other end of the fifth joint SA1-5 of the change-over switch SA1 is connected with one end of a control contact ZB-8 of the comprehensive protector ZB, and the other end of the control contact ZB-8 of the comprehensive protector ZB is connected with one end of a protection contact ZB-7;
one end of the button self-locking switch K5-ZM is connected with a common line of the comprehensive protector ZB, the other end of the button self-locking switch K5-ZM is connected with one end of a coil of the relay CK5, and the other end of the coil of the relay CK5 is connected with a negative voltage VEE; one end of the button self-locking switch K6-HZFZ is connected with a common line of the comprehensive protector ZB, the other end of the button self-locking switch K6-HZFZ is connected with one end of a coil of the relay CK6, and the other end of the coil of the relay CK6 is connected with the negative voltage VEE; one end of the button switch K10-FZ is connected with a common line of the comprehensive protector ZB, the other end of the button switch K10-FZ is connected with one end of a coil of the relay CK10, and the other end of the coil of the relay CK10 is connected with a negative voltage VEE; one end of the button switch K11-HZ is connected with a common line of the comprehensive protector ZB, the other end of the button switch K11-HZ is connected with one end of a coil of the relay CK11, and the other end of the coil of the relay CK11 is connected with the negative voltage VEE.
Further, the secondary control circuit for the intelligent low-voltage flameproof lighting cabinet further comprises: relay CK9, button switch K9-LS, leakage experiment relay K2;
one end of a control contact ZB-4 of the comprehensive protector ZB is connected with a fire wire L0, and the other end is connected with one end of a coil of the leakage experiment relay K2; one end of a normally open contact CK9-1 of the relay CK9 is connected with a live wire L0, and the other end of the normally open contact CK9-1 is connected with one end of a coil of the leakage experiment relay K2; the other end of the coil of the leakage experiment relay K2 is connected with a neutral line N0; one end of the button switch K9-LS is connected with a common line of the comprehensive protector ZB, the other end of the button switch K9-LS is connected with one end of a relay CK9 coil, and the other end of the relay CK9 coil is connected with a negative voltage VEE.
Further, the secondary control circuit for the intelligent low-voltage flameproof lighting cabinet further comprises: button switches K8-YR and button switches K7-YC; the two ends of the button switch K8-YR are respectively connected with the nearby swing-in input end of the comprehensive protector ZB and the common line, and the two ends of the button switch K7-YC are respectively connected with the nearby swing-out input end of the comprehensive protector ZB and the common line; the nearby swing-in input end and the nearby swing-out input end are respectively used for controlling the entering and the exiting of the handcart in the intelligent low-voltage flameproof lighting cabinet.
Further, the change-over switch SA1 comprises three gears, wherein the first gear comprises a first joint SA1-1, a third joint SA1-3 and a fifth joint SA1-5, the second gear comprises a second joint SA1-2 and a fourth joint SA1-4, and the third gear is an overhaul gear; when the change-over switch SA1 is in the first gear, the first, third and fifth links SA1-1, SA1-3, SA1-5 are closed, when the change-over switch SA1 is in the second gear, the second and fourth links SA1-2, SA1-4 are closed, and when the change-over switch SA is in the third gear, all of the first, second, third, fourth and fifth links SA1-2, SA1-3, SA1-4, SA1-5 are open.
The technical scheme provided by the embodiment of the utility model has the beneficial effects that:
1) The intelligent low-voltage flameproof lighting cabinet can be controlled in situ or remotely, and the control function is complete.
2) The protection device has a strong protection function, and can force not to perform closing operation when faults occur.
Drawings
Fig. 1 is a schematic circuit diagram of an embodiment of the present utility model.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
As shown in FIG. 1, the secondary control circuit for the intelligent low-voltage flameproof lighting cabinet provided by the embodiment of the utility model comprises a comprehensive protector ZB, an electric operating mechanism CZ, a change-over switch SA1, a main breaker QF, a coil of a contactor KM, a relay KA1, a relay CK5, a relay CK6, a relay CK10, a relay CK11, a travel switch S8, a travel switch S9, a button switch K4-SY, a button switch K3-XY, a button switch K1-QR, a button switch K2-FW, a button self-locking switch K5-ZM, a button self-locking switch K6-HZFZ, a button switch K10-FZ and a button switch K11-HZ; the electric operating mechanism CZ controls the on-off of the main breaker QF;
the common termination common line of the integrated protector ZB; two ends of the button switch K4-SY are respectively connected with an upper input end of a keyboard of the comprehensive protector ZB and a common line; two ends of the button switch K3-XY are respectively connected with a keyboard-lower input end of the comprehensive protector ZB and a common line; two ends of the button switches K1-QR are respectively connected with a keyboard-confirmation end of the comprehensive protector ZB and a common line; two ends of the button switches K2-FW are respectively connected with a keyboard-reset end of the comprehensive protector ZB and a common line; two ends of a first link SA1-1 of the change-over switch SA1 are respectively connected with a remote control state input end of the comprehensive protector ZB and a common line; the two ends of the first link of the travel switch S9 are respectively connected with the working position input end of the comprehensive protector ZB and the common line, and the two ends of the first link of the travel switch S8 are respectively connected with the test position input end of the comprehensive protector ZB and the common line;
one end of the second linkage of the travel switch S9 is connected with one end of the second linkage of the travel switch S8 and is connected with a live wire L0, the other end of the second linkage of the travel switch S9 is connected with the other end of the second linkage of the travel switch S8 and is connected with a power end of an electric operating mechanism CZ, and a grounding end of the electric operating mechanism CZ is connected with a neutral wire N0; one end of a second linkage SA1-2 of the change-over switch SA1 is connected with the public end of the electric operating mechanism CZ, the other end of the second linkage SA1-2 is connected with one end of a normally open contact CK11-1 of the relay CK11, the other end of the normally open contact CK11-1 of the relay CK11 is connected with one end of a protection contact ZB-1 of the comprehensive protector ZB, and the other end of the protection contact ZB-1 of the comprehensive protector ZB is connected with the first input end of the electric operating mechanism CZ; one end of a third link SA1-3 of the change-over switch SA1 is connected with the public end of the electric operating mechanism CZ, the other end of the third link SA1-3 is connected with one end of a control contact ZB-2 of the comprehensive protector ZB, and the other end of the control contact ZB-2 of the comprehensive protector ZB is connected with one end of a protection contact ZB-1; one end of a normally open contact CK10-1 of the relay CK10 is connected with a public end of the electric operating mechanism CZ, and the other end of the normally open contact CK10-1 of the relay CK10 is connected with a second input end of the electric operating mechanism CZ; one end of a control contact ZB-3 of the comprehensive protector ZB is connected with the other end of a third link SA1-3 of the change-over switch SA1, and the other end of the control contact ZB is connected with a second input end of the electric operating mechanism CZ;
one end of the control contact ZB-5 of the comprehensive protector ZB is connected with the live wire L1, the other end is connected with one end of the heater JR1, and the other end of the heater JR1 is connected with the neutral wire N1; one end of a normally open contact CK5-1 of the relay CK5 is connected with a fire line L1, the other end of the normally open contact CK5 is connected with one end of an illuminating lamp EL, and the other end of the illuminating lamp EL is connected with a neutral line N1; one end of a control contact ZB-6 of the comprehensive protector ZB is connected with a fire wire L1, and the other end is connected with one end of an illuminating lamp EL;
one end of the main breaker QF is connected with a fire wire L0, and the other end is connected with one end of a fourth link SA1-4 of the change-over switch SA1 and one end of a fifth link SA1-5 of the change-over switch SA; the other end of the fourth link SA1-4 of the change-over switch SA1 is connected with one end of a normally open contact KA1-1 of the relay KA1 and one end of a normally open contact CK6-1 of the relay CK 6; the other end of the normally open contact KA1-1 of the relay KA1 is connected with one end of a protection contact ZB-7 of the comprehensive protector ZB, the other end of the protection contact ZB-7 of the comprehensive protector ZB is connected with one end of a coil of the contactor KM, and the other end of the coil of the contactor KM is connected with a neutral line N0; the other end of the normally open contact CK6-1 of the relay CK6 is connected with one end of a coil of the relay KA1, and the other end of the coil of the relay KA1 is connected with a neutral line N0; the other end of the fifth joint SA1-5 of the change-over switch SA1 is connected with one end of a control contact ZB-8 of the comprehensive protector ZB, and the other end of the control contact ZB-8 of the comprehensive protector ZB is connected with one end of a protection contact ZB-7;
one end of the button self-locking switch K5-ZM is connected with a common line of the comprehensive protector ZB, the other end of the button self-locking switch K5-ZM is connected with one end of a coil of the relay CK5, and the other end of the coil of the relay CK5 is connected with a negative voltage VEE; one end of the button self-locking switch K6-HZFZ is connected with a common line of the comprehensive protector ZB, the other end of the button self-locking switch K6-HZFZ is connected with one end of a coil of the relay CK6, and the other end of the coil of the relay CK6 is connected with the negative voltage VEE; one end of the button switch K10-FZ is connected with a common line of the comprehensive protector ZB, the other end of the button switch K10-FZ is connected with one end of a coil of the relay CK10, and the other end of the coil of the relay CK10 is connected with a negative voltage VEE; one end of the button switch K11-HZ is connected with a common line of the comprehensive protector ZB, the other end of the button switch K11-HZ is connected with one end of a coil of the relay CK11, and the other end of the coil of the relay CK11 is connected with a negative voltage VEE; in this embodiment, the negative voltage VEE is-12 v;
in one embodiment, the secondary control circuit for the intelligent low-voltage flameproof lighting cabinet further comprises: relay CK9, button switch K9-LS, leakage experiment relay K2;
one end of a control contact ZB-4 of the comprehensive protector ZB is connected with a fire wire L0, and the other end is connected with one end of a coil of the leakage experiment relay K2; one end of a normally open contact CK9-1 of the relay CK9 is connected with a live wire L0, and the other end of the normally open contact CK9-1 is connected with one end of a coil of the leakage experiment relay K2; the other end of the coil of the leakage experiment relay K2 is connected with a neutral line N0; one end of the button switch K9-LS is connected with a common line of the comprehensive protector ZB, the other end of the button switch K9-LS is connected with one end of a relay CK9 coil, and the other end of the relay CK9 coil is connected with a negative voltage VEE;
in one embodiment, the secondary control circuit for the intelligent low-voltage flameproof lighting cabinet further comprises: button switches K8-YR and button switches K7-YC; the two ends of the button switch K8-YR are respectively connected with the nearby swing-in input end of the comprehensive protector ZB and the common line, and the two ends of the button switch K7-YC are respectively connected with the nearby swing-out input end of the comprehensive protector ZB and the common line; the nearby swing-in input end and the nearby swing-out input end are respectively used for controlling the entering and the exiting of the handcart in the intelligent low-voltage flameproof lighting cabinet;
in one embodiment, the change-over switch SA1 comprises three gears, wherein the first gear comprises a first joint SA1-1, a third joint SA1-3 and a fifth joint SA1-5, the second gear comprises a second joint SA1-2 and a fourth joint SA1-4, and the third gear is a maintenance gear; when the change-over switch SA1 is in the first gear, the first linkage SA1-1, the third linkage SA1-3 and the fifth linkage SA1-5 are closed, when the change-over switch SA1 is in the second gear, the second linkage SA1-2 and the fourth linkage SA1-4 are closed, and when the change-over switch SA is in the third gear, all the first linkage SA1-1, the second linkage SA1-2, the third linkage SA1-3, the fourth linkage SA1-4 and the fifth linkage SA1-5 are opened;
the working principle of the secondary control circuit for the intelligent low-voltage flameproof lighting cabinet provided by the embodiment of the utility model is as follows: the button switches K4-SY, the button switches K3-XY, the button switches K1-QR and the button switches K2-FW are used as input buttons of the comprehensive protector ZB; when the handcart of the intelligent low-voltage flameproof lighting cabinet is in a working position, the two lines of the travel switch S9 are closed, and when the handcart of the intelligent low-voltage flameproof lighting cabinet is in a test position, the two lines of the travel switch S8 are closed, and the electric operating mechanism CZ is powered on;
when in-situ switching-on operation is needed, the change-over switch SA1 is switched to a second gear, and at the moment, the second link SA1-2 and the fourth link SA1-4 are closed; if the comprehensive protector ZB does not detect a fault, the protection contact ZB-1 is closed, and the protection contact ZB-7 is closed; pressing a button switch K11-HZ, powering a coil of a relay CK11, closing a normally open contact CK11-1 of the relay CK11, and closing a main breaker QF by action of an electric operating mechanism CZ; at the moment, a button self-locking switch K6-HZFZ can be pressed, a coil of a relay CK6 is powered on, a normally open contact CK6-1 of the relay CK6 is closed, a coil of a relay KA1 is powered on, a normally open contact KA1-1 of the relay KA1 is closed, and a coil of a contactor KM is powered on; completing the closing action;
when the on-site opening operation is needed, the changeover switch SA1 is switched to a second gear, and at the moment, the second SA1-2 and the fourth SA1-4 are closed; when the button switch K10-FZ is pressed, the coil of the relay CK10 is electrified, the normally open contact CK10-1 of the relay CK10 is closed, and the electric operating mechanism CZ acts to enable the main breaker QF to be opened; the coil of the contactor KM is deenergized, the coil of the relay KA1 is deenergized, the self-holding of the contactor KM is released, and the brake-separating action is completed;
when the remote control switching-on operation is needed, the change-over switch SA is switched to a first gear, and at the moment, the first SA1-1, the third SA1-3 and the fifth SA1-5 are closed; the comprehensive protector ZB controls the contact ZB-2 to be closed, and the electric operating mechanism CZ acts to enable the main circuit breaker QF to be closed; the comprehensive protector ZB controls the contact ZB-8 to be closed, and the coil of the contactor KM is electrified; completing the closing action;
when remote control brake-off operation is needed, the change-over switch SA is switched to a first gear, and at the moment, the first SA1-1, the third SA1-3 and the fifth SA1-5 are closed; the comprehensive protector ZB controls the contact ZB-3 to be closed, and the electric operating mechanism CZ acts to open the main breaker QF; the comprehensive protector ZB controls the contact ZB-8 to be disconnected, the coil of the contactor KM is powered off, and the brake-separating action is completed;
when the comprehensive protector ZB detects an internal or external fault, the protection contact ZB-1 and the protection contact ZB-7 are both disconnected, so that the false switching-on is prevented.
The secondary control circuit for the intelligent low-voltage explosion-proof lighting cabinet can be used for in-situ or remote control electric leakage test, a button switch K9-LS is pressed during the electric leakage test, and a comprehensive protector ZB control contact ZB-4 is closed during the remote control electric leakage test, so that a coil of an electric leakage test relay K2 can be powered on.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same, and although the present utility model has been described in detail with reference to the examples, it should be understood by those skilled in the art that modifications and equivalents may be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model, and all such modifications and equivalents are intended to be encompassed in the scope of the claims of the present utility model.
Claims (4)
1. The secondary control circuit for the intelligent low-voltage flameproof lighting cabinet is characterized by comprising a comprehensive protector ZB, an electric operating mechanism CZ, a change-over switch SA1, a main breaker QF, a coil of a contactor KM, a relay KA1, a relay CK5, a relay CK6, a relay CK10, a relay CK11, a travel switch S8, a travel switch S9, a button switch K4-SY, a button switch K3-XY, a button switch K1-QR, a button switch K2-FW, a button self-locking switch K5-ZM, a button self-locking switch K6-HZFZ, a button switch K10-FZ and a button switch K11-HZ; the electric operating mechanism CZ controls the on-off of the main breaker QF;
the common termination common line of the integrated protector ZB; two ends of the button switch K4-SY are respectively connected with an upper input end of a keyboard of the comprehensive protector ZB and a common line; two ends of the button switch K3-XY are respectively connected with a keyboard-lower input end of the comprehensive protector ZB and a common line; two ends of the button switches K1-QR are respectively connected with a keyboard-confirmation end of the comprehensive protector ZB and a common line; two ends of the button switches K2-FW are respectively connected with a keyboard-reset end of the comprehensive protector ZB and a common line; two ends of a first link SA1-1 of the change-over switch SA1 are respectively connected with a remote control state input end of the comprehensive protector ZB and a common line; the two ends of the first link of the travel switch S9 are respectively connected with the working position input end of the comprehensive protector ZB and the common line, and the two ends of the first link of the travel switch S8 are respectively connected with the test position input end of the comprehensive protector ZB and the common line;
one end of the second linkage of the travel switch S9 is connected with one end of the second linkage of the travel switch S8 and is connected with a live wire L0, the other end of the second linkage of the travel switch S9 is connected with the other end of the second linkage of the travel switch S8 and is connected with a power end of an electric operating mechanism CZ, and a grounding end of the electric operating mechanism CZ is connected with a neutral wire N0; one end of a second linkage SA1-2 of the change-over switch SA1 is connected with the public end of the electric operating mechanism CZ, the other end of the second linkage SA1-2 is connected with one end of a normally open contact CK11-1 of the relay CK11, the other end of the normally open contact CK11-1 of the relay CK11 is connected with one end of a protection contact ZB-1 of the comprehensive protector ZB, and the other end of the protection contact ZB-1 of the comprehensive protector ZB is connected with the first input end of the electric operating mechanism CZ; one end of a third link SA1-3 of the change-over switch SA1 is connected with the public end of the electric operating mechanism CZ, the other end of the third link SA1-3 is connected with one end of a control contact ZB-2 of the comprehensive protector ZB, and the other end of the control contact ZB-2 of the comprehensive protector ZB is connected with one end of a protection contact ZB-1; one end of a normally open contact CK10-1 of the relay CK10 is connected with a public end of the electric operating mechanism CZ, and the other end of the normally open contact CK10-1 of the relay CK10 is connected with a second input end of the electric operating mechanism CZ; one end of a control contact ZB-3 of the comprehensive protector ZB is connected with the other end of a third link SA1-3 of the change-over switch SA1, and the other end of the control contact ZB is connected with a second input end of the electric operating mechanism CZ;
one end of the control contact ZB-5 of the comprehensive protector ZB is connected with the live wire L1, the other end is connected with one end of the heater JR1, and the other end of the heater JR1 is connected with the neutral wire N1; one end of a normally open contact CK5-1 of the relay CK5 is connected with a fire line L1, the other end of the normally open contact CK5 is connected with one end of an illuminating lamp EL, and the other end of the illuminating lamp EL is connected with a neutral line N1; one end of a control contact ZB-6 of the comprehensive protector ZB is connected with a fire wire L1, and the other end is connected with one end of an illuminating lamp EL;
one end of the main breaker QF is connected with a fire wire L0, and the other end is connected with one end of a fourth link SA1-4 of the change-over switch SA1 and one end of a fifth link SA1-5 of the change-over switch SA; the other end of the fourth link SA1-4 of the change-over switch SA1 is connected with one end of a normally open contact KA1-1 of the relay KA1 and one end of a normally open contact CK6-1 of the relay CK 6; the other end of the normally open contact KA1-1 of the relay KA1 is connected with one end of a protection contact ZB-7 of the comprehensive protector ZB, the other end of the protection contact ZB-7 of the comprehensive protector ZB is connected with one end of a coil of the contactor KM, and the other end of the coil of the contactor KM is connected with a neutral line N0; the other end of the normally open contact CK6-1 of the relay CK6 is connected with one end of a coil of the relay KA1, and the other end of the coil of the relay KA1 is connected with a neutral line N0; the other end of the fifth joint SA1-5 of the change-over switch SA1 is connected with one end of a control contact ZB-8 of the comprehensive protector ZB, and the other end of the control contact ZB-8 of the comprehensive protector ZB is connected with one end of a protection contact ZB-7;
one end of the button self-locking switch K5-ZM is connected with a common line of the comprehensive protector ZB, the other end of the button self-locking switch K5-ZM is connected with one end of a coil of the relay CK5, and the other end of the coil of the relay CK5 is connected with a negative voltage VEE; one end of the button self-locking switch K6-HZFZ is connected with a common line of the comprehensive protector ZB, the other end of the button self-locking switch K6-HZFZ is connected with one end of a coil of the relay CK6, and the other end of the coil of the relay CK6 is connected with the negative voltage VEE; one end of the button switch K10-FZ is connected with a common line of the comprehensive protector ZB, the other end of the button switch K10-FZ is connected with one end of a coil of the relay CK10, and the other end of the coil of the relay CK10 is connected with a negative voltage VEE; one end of the button switch K11-HZ is connected with a common line of the comprehensive protector ZB, the other end of the button switch K11-HZ is connected with one end of a coil of the relay CK11, and the other end of the coil of the relay CK11 is connected with the negative voltage VEE.
2. The secondary control circuit for an intelligent low-voltage flameproof lighting cabinet according to claim 1, wherein,
the secondary control circuit for the intelligent low-voltage flameproof lighting cabinet further comprises: relay CK9, button switch K9-LS, leakage experiment relay K2;
one end of a control contact ZB-4 of the comprehensive protector ZB is connected with a fire wire L0, and the other end is connected with one end of a coil of the leakage experiment relay K2; one end of a normally open contact CK9-1 of the relay CK9 is connected with a live wire L0, and the other end of the normally open contact CK9-1 is connected with one end of a coil of the leakage experiment relay K2; the other end of the coil of the leakage experiment relay K2 is connected with a neutral line N0; one end of the button switch K9-LS is connected with a common line of the comprehensive protector ZB, the other end of the button switch K9-LS is connected with one end of a relay CK9 coil, and the other end of the relay CK9 coil is connected with a negative voltage VEE.
3. The secondary control circuit for an intelligent low-voltage flameproof lighting cabinet according to claim 1, wherein,
the secondary control circuit for the intelligent low-voltage flameproof lighting cabinet further comprises: button switches K8-YR and button switches K7-YC; the two ends of the button switch K8-YR are respectively connected with the nearby swing-in input end of the comprehensive protector ZB and the common line, and the two ends of the button switch K7-YC are respectively connected with the nearby swing-out input end of the comprehensive protector ZB and the common line; the nearby swing-in input end and the nearby swing-out input end are respectively used for controlling the entering and the exiting of the handcart in the intelligent low-voltage flameproof lighting cabinet.
4. A secondary control circuit for an intelligent low-voltage flameproof lighting cabinet according to any one of claims 1 to 3, characterized in that,
the change-over switch SA1 comprises three gears, wherein the first gear comprises a first joint SA1-1, a third joint SA1-3 and a fifth joint SA1-5, the second gear comprises a second joint SA1-2 and a fourth joint SA1-4, and the third gear is an overhaul gear; when the change-over switch SA1 is in the first gear, the first, third and fifth links SA1-1, SA1-3, SA1-5 are closed, when the change-over switch SA1 is in the second gear, the second and fourth links SA1-2, SA1-4 are closed, and when the change-over switch SA is in the third gear, all of the first, second, third, fourth and fifth links SA1-2, SA1-3, SA1-4, SA1-5 are open.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322071359.5U CN220605223U (en) | 2023-08-03 | 2023-08-03 | Secondary control circuit for intelligent low-voltage flameproof lighting cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322071359.5U CN220605223U (en) | 2023-08-03 | 2023-08-03 | Secondary control circuit for intelligent low-voltage flameproof lighting cabinet |
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| Publication Number | Publication Date |
|---|---|
| CN220605223U true CN220605223U (en) | 2024-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322071359.5U Active CN220605223U (en) | 2023-08-03 | 2023-08-03 | Secondary control circuit for intelligent low-voltage flameproof lighting cabinet |
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| Country | Link |
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| CN (1) | CN220605223U (en) |
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2023
- 2023-08-03 CN CN202322071359.5U patent/CN220605223U/en active Active
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