CN215047793U - Elevator phase sequence switching device and control circuit thereof - Google Patents
Elevator phase sequence switching device and control circuit thereof Download PDFInfo
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- CN215047793U CN215047793U CN202120665965.8U CN202120665965U CN215047793U CN 215047793 U CN215047793 U CN 215047793U CN 202120665965 U CN202120665965 U CN 202120665965U CN 215047793 U CN215047793 U CN 215047793U
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Abstract
The utility model discloses an elevator phase sequence auto-change over device and control circuit thereof, include input L1, input L2, input L3 and the output R1, output S1, the output T1 of being connected respectively with the phase sequence protector that are connected respectively with three phase current to input L1, input L2, input L3 and output R1, output S1, output T1 one-to-one; the elevator phase sequence switching control circuit further comprises a first open-phase switch, a second open-phase switch, a third open-phase switch, a first phase-staggered switch, a second phase-staggered switch and a third phase-staggered switch; inspection personnel can simulate six wiring conditions of open phase and wrong phase by controlling the closed states of the first open-phase switch, the second open-phase switch, the third open-phase switch, the first wrong-phase switch, the second wrong-phase switch and the third wrong-phase switch, so that the whole wiring mode is simplified, and the safety and the inspection efficiency are improved.
Description
Technical Field
The utility model relates to an elevator inspection detects technical field, in particular to elevator phase sequence auto-change over device and control circuit thereof.
Background
The working principle of the protective relay is that the connection between a power supply and an elevator control system is blocked by judging whether the phase sequence of the power supply of elevator equipment is open or wrong or not, if the phase sequence of the power supply is changed, the phase sequence protector cannot be connected, so that the elevator system is protected, accidents are avoided, when the phase sequence protector is judged to be capable of acting in the elevator system, the six conditions of open or wrong phases need to be tested one by one, the existing testing process needs a tester to manually change the wiring mode of a three-phase power supply for the six conditions, the other wiring mode is changed to test after one condition is eliminated in each test, the tester needs to be powered off when wiring each time, and the power-on test is carried out after the wiring is finished, clearly this test is very inefficient.
It is seen that improvements and enhancements to the prior art are needed.
SUMMERY OF THE UTILITY MODEL
In view of the foregoing disadvantages of the prior art, an object of the present invention is to provide an elevator phase sequence switching device and a control circuit thereof, which solve the technical problems of low testing efficiency and complicated wiring steps of the phase sequence protector in the prior art.
In order to achieve the purpose, the utility model adopts the following technical proposal:
an elevator phase sequence switching control circuit comprises an input end L1, an input end L2, an input end L3, an output end R1, an output end S1 and an output end T1, wherein the input end L1, the input end L2 and the input end L3 are respectively communicated with a three-phase power supply, the output end R1, the output end S1 and the output end T1 are respectively connected with a phase sequence protector, and the input end L1, the input end L2, the input end L3, the output end R1, the output end S1 and the output end T1 are in one-to-one correspondence; the elevator phase sequence switching control circuit further comprises a first open-phase switch, a second open-phase switch, a third open-phase switch, a first staggered-phase switch, a second staggered-phase switch and a third staggered-phase switch, wherein the first open-phase switch is used for controlling the on and off of the current flowing from the input end L1 to the output end R1, the second open-phase switch is used for controlling the on and off of the current flowing from the input end L2 to the output end S1, the third open-phase switch is used for controlling the on and off of the current flowing from the input end L3 to the output end T1, the first staggered-phase switch is used for controlling the on and off of the current flowing from the input end L1 to the output end S1 and controlling the on and off of the current flowing from the input end L2 to the output end R1, the second staggered-phase switch is used for controlling the on and off of the current flowing from the input end L2 to the output end T1 and controlling the on and off of the current flowing from the input end L3 to the output end S1, the third phase-staggered switch is used for controlling the current flowing from the input end L1 to the output end T1 to be switched on and off and controlling the current flowing from the input end L3 to the output end R1 to be switched on and off.
In the control circuit of the phase sequence switching device of the elevator, the first phase-dislocation switch comprises a first one-way switch and a second one-way switch, two ends of the first one-way switch are respectively connected with the input end L1 and the output end S1, and two ends of the second one-way switch are respectively connected with the input end L2 and the output end R1.
In the control circuit of the phase sequence switching device of the elevator, the second phase-dislocation switch comprises a third one-way switch and a fourth one-way switch, two ends of the third one-way switch are respectively connected with an input end L2 and an output end T1, and two ends of the fourth one-way switch are respectively connected with an input end L3 and an output end S1.
In the control circuit of the phase sequence switching device of the elevator, the third phase-staggered switch comprises a fifth one-way switch and a sixth one-way switch, two ends of the fifth one-way switch are respectively connected with the input end L3 and the output end R1, and two ends of the sixth one-way switch are respectively connected with the input end L1 and the output end T1.
In the elevator phase sequence switching control circuit, the first one-way switch and the second one-way switch are coaxially controlled.
In the control circuit of the phase sequence switching device of the elevator, the third one-way switch and the fourth one-way switch are coaxially controlled.
In the control circuit of the phase sequence switching device of the elevator, the fifth one-way switch and the sixth one-way switch are coaxially controlled, namely, the fifth one-way switch and the sixth one-way switch are opened or closed simultaneously.
In the elevator phase sequence switching control circuit, the first open-phase switch, the second open-phase switch and the third open-phase switch are LA2 button switches.
In the elevator phase sequence switching control circuit, the first phase-staggered switch, the second phase-staggered switch and the third phase-staggered switch are LA38 button switches.
The utility model also provides an elevator phase sequence auto-change over device, including the PCB board, the printing has on the PCB board elevator phase sequence switching control circuit.
Has the advantages that:
the utility model provides an elevator phase sequence auto-change over device and control circuit thereof, the closed state of the first open-phase switch of inspection personnel accessible control, second open-phase switch, third open-phase switch, first wrong phase switch, second wrong phase switch and third wrong phase switch simulates out six wiring circumstances of open-phase and wrong phase to whole mode of connection has been simplified, security and efficiency of software testing have been improved.
Drawings
Fig. 1 is the utility model provides an elevator phase sequence switches control circuit's circuit diagram.
Description of the main element symbols: 1-a first open-phase switch, 2-a second open-phase switch, 3-a third open-phase switch, 4-a first staggered-phase switch, 5-a second staggered-phase switch, 6-a third staggered-phase switch, 41-a first one-way switch, 42-a second one-way switch, 51-a third one-way switch, 52-a fourth one-way switch, 61-a fifth one-way switch and 62-a sixth one-way switch.
Detailed Description
The utility model provides an elevator phase sequence auto-change over device and control circuit thereof, for making the utility model discloses a purpose, technical scheme and effect are clearer, clear and definite, and it is right that the following refers to the drawing and the embodiment of lifting the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
In the description of the present invention, it should be understood that the terms "middle part", "inside", "outside", etc. indicate the position or positional relationship of the present invention based on the drawings, and are only for convenience of description and simplified description. Furthermore, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
Referring to fig. 1, the present invention provides an elevator phase sequence switching control circuit, which includes an input terminal L1, an input terminal L2, an input terminal L3 respectively connected to a three-phase power supply, and an output terminal R1, an output terminal S1, and an output terminal T1 respectively connected to a phase sequence protector, and the input terminal L1, the input terminal L2, the input terminal L3, the output terminal R1, the output terminal S1, and the output terminal T1 are in one-to-one correspondence; the elevator phase sequence switching control circuit further comprises a first open-phase switch 1, a second open-phase switch 2, a third open-phase switch 3, a first staggered-phase switch 4, a second staggered-phase switch 5 and a third staggered-phase switch 6, wherein the first open-phase switch 1 is used for controlling the on and off of the current flowing from the input end L1 to the output end R1, the second open-phase switch 2 is used for controlling the on and off of the current flowing from the input end L2 to the output end S1, the third open-phase switch 3 is used for controlling the on and off of the current flowing from the input end L3 to the output end T1, the first staggered-phase switch 4 is used for controlling the on and off of the current flowing from the input end L1 to the output end S1 and controlling the on and off of the current flowing from the input end L2 to the output end R1, the second staggered-phase switch 5 is used for controlling the on and off of the current flowing from the input end L2 to the output end T1 and controlling the on and off of the current flowing from the input end L3 to the output end S1 And being turned off, the third phase-staggered switch 6 is used for controlling the current flowing from the input end L3 to the output end R1 to be switched on and off and controlling the current flowing from the input end L1 to the output end T1 to be switched on and off.
In practical application, firstly, an input end L1, an input end L2 and an input end L3 are respectively and correspondingly connected with an end L1, an end L2 and an end L3 of a three-phase power supply one by one, then an output end R1, an output end S1 and an output end T1 are respectively and correspondingly connected with an end R1, an end S1 and an end T1 of a phase sequence protector one by one, and the wiring modes of open phases and wrong phases are simulated by controlling the closing states of a first open-phase switch 1, a second open-phase switch 2, a third open-phase switch 3, a first wrong-phase switch 4, a second wrong-phase switch 5 and a third wrong-phase switch 6; when the first open-phase switch 1 is switched off, the second open-phase switch 2 and the third open-phase switch 3 are switched on, and the first staggered-phase switch 4, the second staggered-phase switch 5 and the third staggered-phase switch 6 are switched off, the condition that the input end L1 and the output end R1 are in open-phase can be simulated; when the second open-phase switch 2 is switched off, the first open-phase switch 1 and the third open-phase switch 3 are switched on, and the first staggered-phase switch 4, the second staggered-phase switch 5 and the third staggered-phase switch 6 are switched off, so that the condition that the input end L2 and the output end S1 are in open-phase can be simulated; when the third open-phase switch 3 is switched off, the first open-phase switch 1 and the second open-phase switch 2 are switched on, and the first staggered-phase switch 4, the second staggered-phase switch 5 and the third staggered-phase switch 6 are switched off, so that the condition that the input end L3 and the output end T1 are in open-phase can be simulated; when the first phase-dislocation switch 4 is closed and the third phase-dislocation switch 3 is closed, the first phase-dislocation switch 1, the second phase-dislocation switch 2, the second phase-dislocation switch 5 and the third phase-dislocation switch 6 are opened, namely, the first one-way switch 41 and the second one-way switch 42 are simultaneously closed, so that the input end L1 is communicated with the output end S1, the input end L2 is communicated with the output end R1, and the condition that the input end L1 is in phase-dislocation connection with the output end S1 and the input end L2 is in phase-dislocation connection with the output end R1 is simulated; when the second phase-dislocation switch 5 is closed, the first phase-dislocation switch 1 is closed, the second phase-dislocation switch 2, the third phase-dislocation switch 3, the first phase-dislocation switch 4 and the third phase-dislocation switch 6 are opened, that is, the third one-way switch 51 and the fourth one-way switch 52 are simultaneously closed, so that the input end L2 is communicated with the output end T1, the input end L3 is communicated with the output end S1, and the condition that the input end L2 is in phase-dislocation connection with the output end T1 and the input end L3 is in phase-dislocation connection with the output end S1 is simulated; when the third phase-dislocation switch 6 is closed, the second phase-dislocation switch 2 is closed, the first phase-dislocation switch 1, the third phase-dislocation switch 3, the first phase-dislocation switch 4 and the second phase-dislocation switch 5 are opened, that is, the fifth one-way switch 61 and the sixth one-way switch 62 are simultaneously closed, so that the input end L3 is communicated with the output end S1, the input end L2 is communicated with the output end T1, and the condition that the input end L3 is in phase-dislocation connection with the output end S1 and the input end L2 is in phase-dislocation connection with the output end T1 is simulated; the phase sequence protector can be conveniently and rapidly tested by the tester under the six wiring conditions of phase failure and phase error, the whole wiring process is simplified, and the working efficiency of the tester is improved.
Further, the first phase-staggered switch 4 includes a first one-way switch 41 and a second one-way switch 42, two ends of the first one-way switch 41 are respectively connected to the input end L1 and the output end S1, and two ends of the second one-way switch 42 are respectively connected to the input end L2 and the output end R1.
Further, the second phase-staggered switch 5 includes a third one-way switch 51 and a fourth one-way switch 52, two ends of the third one-way switch 51 are respectively connected to the input end L2 and the output end T1, and two ends of the fourth one-way switch 52 are respectively connected to the input end L3 and the output end S1.
Further, the third phase-staggered switch 6 includes a fifth one-way switch 61 and a sixth one-way switch 62, two ends of the fifth one-way switch 61 are respectively connected to the input end L3 and the output end R1, and two ends of the sixth one-way switch 62 are respectively connected to the input end L1 and the output end T1.
Further, the first one-way switch 41 and the second one-way switch 42 are coaxially controlled, the third one-way switch 51 and the fourth one-way switch 52 are coaxially controlled, and the fifth one-way switch 61 and the sixth one-way switch 62 are coaxially controlled; i.e. open simultaneously or close simultaneously between two.
Further, the first open-phase switch 1, the second open-phase switch 2, and the third open-phase switch 3 are LA2 push-button switches; the button switch is simple to operate, and control and operation of inspectors are facilitated.
Further, the first, second, and third phase-staggered switches 4, 5, and 6 are LA38 push-button switches; the button switch is simple to operate, and control and operation of inspectors are facilitated.
The utility model discloses still correspondingly provide an elevator phase sequence auto-change over device, including the printing have the above-mentioned elevator phase sequence switching control circuit's that mentions PCB board, adopt above-mentioned control circuit's elevator phase sequence auto-change over device can simulate out six kinds of circumstances of open-phase and wrong looks fast, simplified whole test procedure, improved work efficiency.
In conclusion, the inspector can simulate six wiring conditions of open phase and wrong phase by controlling the closing states of the first open-phase switch 1, the second open-phase switch 2, the third open-phase switch 3, the first wrong-phase switch 4, the second wrong-phase switch 5 and the third wrong-phase switch 6, so that the whole wiring mode is simplified, and the safety and the inspection efficiency are improved.
It should be understood that equivalent alterations and modifications can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such alterations and modifications should fall within the scope of the appended claims.
Claims (10)
1. An elevator phase sequence switching control circuit comprises an input end L1, an input end L2, an input end L3, an output end R1, an output end S1 and an output end T1 which are respectively connected with a three-phase power supply, wherein the input end L1, the input end L2, the input end L3, the output end R1, the output end S1 and the output end T1 are in one-to-one correspondence, and the elevator phase sequence switching control circuit is characterized by further comprising a first phase-breaking switch, a second phase-breaking switch, a third phase-breaking switch, a first phase-staggering switch, a second phase-staggering switch and a third phase-staggering switch, wherein the first phase-breaking switch is used for controlling the current flowing from the input end L1 to the output end R1 to be switched on and switched off, the second phase-breaking switch is used for controlling the current flowing from the input end L2 to the output end S1 to be switched on and switched off, and the third phase-breaking switch is used for controlling the current flowing from the input end L3 to the output end T1, the first phase-staggered switch is configured to control the current flowing from the input terminal L1 to the output terminal S1 to be turned on and off and control the current flowing from the input terminal L2 to the output terminal R1 to be turned on and off, the second phase-staggered switch is configured to control the current flowing from the input terminal L2 to the output terminal T1 to be turned on and off and control the current flowing from the input terminal L3 to the output terminal S1 to be turned on and off, and the third phase-staggered switch is configured to control the current flowing from the input terminal L3 to the output terminal R1 to be turned on and off and control the current flowing from the input terminal L1 to the output terminal T1 to be turned on and off.
2. The elevator phase sequence switching control circuit according to claim 1, wherein the first phase-dislocation switch comprises a first one-way switch having both ends connected to the input terminal L1 and the output terminal S1, respectively, and a second one-way switch having both ends connected to the input terminal L2 and the output terminal R1, respectively.
3. The elevator phase sequence switching control circuit according to claim 1, wherein the second phase-staggered switch includes a third one-way switch and a fourth one-way switch, both ends of the third one-way switch are respectively connected with the input terminal L2 and the output terminal T1, and both ends of the fourth one-way switch are respectively connected with the input terminal L3 and the output terminal S1;
4. the elevator phase sequence switching control circuit according to claim 1, wherein the third phase-staggered switch includes a fifth one-way switch and a sixth one-way switch, both ends of the fifth one-way switch are connected with the input terminal L3 and the output terminal R1, respectively, and both ends of the sixth one-way switch are connected with the input terminal L1 and the output terminal T1, respectively.
5. The elevator phase sequence switching control circuit of claim 2, wherein the first one-way switch and the second one-way switch are controlled coaxially.
6. The elevator phase sequence switching control circuit of claim 3, wherein the third one-way switch and the fourth one-way switch are controlled coaxially.
7. The elevator phase sequence switching control circuit of claim 4, wherein the fifth one-way switch and the sixth one-way switch are controlled coaxially.
8. The elevator phase sequence switching control circuit of claim 1, wherein the first open-phase switch, the second open-phase switch, and the third open-phase switch are LA2 push-button switches.
9. The elevator phase sequence switching control circuit of claim 1, wherein the first, second, and third phase error switches are LA38 push button switches.
10. An elevator phase sequence switching device, comprising a PCB board, characterized in that the PCB board is printed with the elevator phase sequence switching circuit of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120665965.8U CN215047793U (en) | 2021-03-31 | 2021-03-31 | Elevator phase sequence switching device and control circuit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120665965.8U CN215047793U (en) | 2021-03-31 | 2021-03-31 | Elevator phase sequence switching device and control circuit thereof |
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| Publication Number | Publication Date |
|---|---|
| CN215047793U true CN215047793U (en) | 2021-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120665965.8U Active CN215047793U (en) | 2021-03-31 | 2021-03-31 | Elevator phase sequence switching device and control circuit thereof |
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| Country | Link |
|---|---|
| CN (1) | CN215047793U (en) |
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- 2021-03-31 CN CN202120665965.8U patent/CN215047793U/en active Active
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