CN210286365U - Power grid sampling module of elevator power failure emergency leveling device - Google Patents
Power grid sampling module of elevator power failure emergency leveling device Download PDFInfo
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- CN210286365U CN210286365U CN201921169260.6U CN201921169260U CN210286365U CN 210286365 U CN210286365 U CN 210286365U CN 201921169260 U CN201921169260 U CN 201921169260U CN 210286365 U CN210286365 U CN 210286365U
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Abstract
The utility model discloses an elevator has a power failure and meets an urgent need electric wire netting sampling module of flat bed device belongs to elevator technical field, its technical scheme main points include input and mains connection's computer lab switch, with the elevator control cabinet that the output of computer lab switch is connected and the emergency device for the power supply of elevator control cabinet when the elevator has a power failure or trouble, emergency device includes: the commercial power input detection circuit is used for detecting whether commercial power is input; the commercial power output detection circuit is used for detecting whether commercial power is output from the machine room switch; the input end of the control module is connected with the commercial power input detection circuit and the commercial power output detection circuit in parallel and is used for judging whether a machine room switch is manually turned off or not and outputting a corresponding control signal; the emergency power supply module is coupled with the output end of the control module and used for receiving a control signal; the utility model discloses can judge whether the people is for closing the computer lab switch, ensure the security of maintenance workman when the maintenance elevator.
Description
Technical Field
The utility model belongs to the technical field of the elevator, more specifically say that it relates to an elevator has a power failure and meets an urgent need electric wire netting sampling module of flat bed device that says so.
Background
With the increasing of high-rise buildings, the requirements on elevators are also improved, and elevators needing to be additionally provided with a power failure emergency device (UPS) are also increasing, so that when a building has power failure or elevator fails, the UPS is automatically switched to supply power by combining with an elevator control system.
At present, the emergency device of the elevator generally comprises a power grid detection device and an emergency power module, wherein the power grid detection device is used for detecting whether a machine room switch supplies power normally, and when the power grid detection device detects that the machine room switch does not supply power normally, the emergency power module transmits power to an elevator control cabinet, so that the elevator can run normally.
The existing power grid detection device generally adopts an auxiliary contact, is high in manufacturing cost, and judges whether power failure occurs or not by directly detecting whether a machine room switch has mains supply input or not. However, when a maintenance worker is maintaining the elevator, the machine room switch is generally turned off manually, and at this time, if the emergency power supply module supplies power to the elevator control cabinet to enable the elevator to operate normally, personal safety of the maintenance worker may be threatened, so that there is still room for improvement.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims at providing an elevator has a power failure and meets an urgent need electric wire netting sampling module of flat bed device, its advantage lies in can judging whether the people is for turning off the computer lab switch, ensures the security of maintenance workman when the maintenance elevator.
In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides an electric wire netting sampling module of elevator power failure emergency flat bed device, includes input and mains connection's computer lab switch, with the elevator control cabinet that the output of computer lab switch is connected and the emergency device for the power supply of elevator control cabinet when the elevator has a power failure or trouble, emergency device includes:
the commercial power input detection circuit is used for detecting whether commercial power is input;
the commercial power output detection circuit is used for detecting whether commercial power is output from the machine room switch;
the input end of the control module is connected with the commercial power input detection circuit and the commercial power output detection circuit in parallel and is used for judging whether a machine room switch is manually turned off or not and outputting a corresponding control signal;
the emergency power supply module is coupled with the output end of the control module and used for receiving a control signal;
when the commercial power input detection circuit detects that commercial power is input and the commercial power output detection circuit detects that no commercial power is output, the emergency power supply module prohibits output;
when the commercial power input detection circuit detects that no commercial power is input and the commercial power output detection circuit detects that no commercial power is output, the emergency power supply module allows starting output.
By adopting the technical scheme, when the emergency power supply module works, if the commercial power input detection circuit detects that commercial power is input and the commercial power output detection circuit detects that no commercial power is output, the machine room switch is manually turned off, and the power supply loop of the emergency power supply module is in a cut-off state; if the commercial power input detection circuit detects that no commercial power is input, the explanation is in the power failure state, and control module output is used for starting the control signal of emergency power supply module this moment, and emergency power supply module switches on and supplies power to the elevator control cabinet, guarantees that the elevator can normal operating.
Compared with the prior art that whether the fault or the abnormity occurs is judged by directly detecting the power on and off of the machine room switch through the auxiliary contact, the machine room switch can be judged to be manually turned off by detecting whether the mains supply is input through the mains supply input detection circuit and detecting whether the mains supply is output through the mains supply output detection circuit, and the safety of a maintenance worker in the process of maintaining the elevator is ensured.
To sum up, the utility model has the advantages of it is following: whether commercial power input exists or not is detected through the commercial power input detection circuit, whether commercial power output exists in the machine room switch or not is detected through the commercial power output detection circuit, whether the machine room switch is turned off manually or not can be judged, and safety of maintenance workers in elevator maintenance is guaranteed.
Drawings
FIG. 1 is a schematic circuit diagram of the present embodiment;
fig. 2 is a schematic circuit diagram of a mains input detection circuit in the present embodiment;
fig. 3 is a schematic circuit diagram of the commercial power output detection circuit in the present embodiment;
fig. 4 is a schematic circuit diagram of the highlighted emergency power module in this embodiment.
Description of reference numerals: 1. an emergency device; 11. the commercial power input detection circuit; 12. a mains output detection circuit; 13. a control module; 14. an emergency power supply module; 141. a storage battery; 142. a unidirectional DC-DC converter; 143. a unidirectional DC-AC converter; 144. and an output relay.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
A power grid sampling module of an elevator power failure emergency leveling device is shown in figure 1 and comprises a machine room switch with an input end connected with mains supply, an elevator control cabinet connected with an output end of the machine room switch and an emergency device 1 for supplying power to the elevator control cabinet when an elevator has a power failure or a fault.
As shown in fig. 1, the emergency device 1 includes a mains input detection circuit 11 for detecting whether a mains is input, a mains output detection circuit 12 for detecting whether a machine room switch has a mains output, the input end of the mains input detection circuit 11 and the mains output detection circuit 12 are connected in parallel, a control module 13 for determining whether the machine room switch is manually turned off and outputting a corresponding control signal, and an emergency power supply module 14 coupled to an output end of the control module 13 and configured to receive the control signal. When the commercial power input detection circuit 11 detects that there is commercial power input and the commercial power output detection circuit 12 detects that there is no commercial power output, the power supply loop of the emergency power supply module 14 is in a cut-off state.
As shown in fig. 2, the commercial power input detection circuit 11 includes a diode VD12, a resistor R69, a resistor R74, a capacitor C47, a resistor R70, an optocoupler U4, and a capacitor C46, and the optocoupler U4 is a coupler of a PC817C model. Wherein, the L1 of commercial power supply is connected to diode VD 12's one end looks, the other end and connecting resistance R69's one end, opto-coupler U4's power supply loop is connected to resistance R69's the other end, commercial power supply's L2 looks is connected to resistance R74's one end, electric capacity C47 series resistance R69 and resistance R74, resistance R70 is parallelly connected with electric capacity C47 and is connected with opto-coupler U4's power supply loop, the one end of electric capacity C46 connects in series opto-coupler U4's power supply loop, the other end ground connection. When the optical coupler U4 works and emits bright light, the commercial power input is indicated. Similarly, the commercial power input detection circuit 11 can be used to detect the phases L1 and L3, L2 and L of the commercial power.
As shown in fig. 3, the utility power output detection circuit 12 includes a diode VD10, a resistor R56, a resistor R63, a capacitor C39, a resistor R57, an optocoupler U5, and a capacitor C38, and the optocoupler U5 is a coupler of PC817C type. The one end of diode VD10 is connected with the T end of elevator control cabinet, the other end and the one end of connecting resistance R56, the power supply circuit of opto-coupler U5 is connected to the other end of resistance R56, the R end of elevator control cabinet is connected to the one end of resistance R63, electric capacity C39 series resistance R69 and resistance R74, resistance R57 is parallelly connected with electric capacity C39 and is connected with the power supply circuit of opto-coupler U5, the power supply circuit of opto-coupler U5 is connected in series to the one end of electric capacity C38, the other end is grounded. When the T ends R of the elevator control cabinet are electrified, the optocoupler U5 works and emits bright light.
As shown in fig. 4, the control module 13 is an MCU processor, and the MCU processor is a microcontroller with a model number of CYW 20819. The emergency power supply module 14 comprises a storage battery 141, a unidirectional DC-DC converter 142, a unidirectional DC-AC converter 143 and an output relay 144, wherein the output end of the storage battery 141 is connected with the input end of the unidirectional DC-DC converter 142, the output end of the unidirectional DC-DC converter 142 is connected with the input end of the unidirectional DC-AC converter 143, the output end of the unidirectional DC-AC converter 143 is connected with the input end of the output relay 144, and the output end of the output relay 144 is connected with the control module 13 and the elevator control cabinet in series. Wherein, output relay 144 can be single-pole single-throw relay or double-pole single-throw relay, and output relay 144 is single-pole single-throw relay in this embodiment, and the normally open contact of single-pole single-throw relay is connected in series to the alternating current output line of elevator switch board power.
When the commercial power is normally supplied, the output relay 144 is turned off, the unidirectional DC-DC converter 142 can convert the 24V direct current output by the storage battery 141 into 600V direct current, and the unidirectional AC-DC converter is in an inverter operating mode under the control of the control module 13 and can convert the 600V direct current into stable 380V alternating current. When no normal commercial power condition (power failure) exists, the output relay 144 is closed to supply power to the elevator control cabinet, so that the elevator can continue to operate normally.
The utility model discloses a working process and beneficial effect as follows: when the emergency power supply module 14 works, if the commercial power input detection circuit 11 detects that commercial power is input and the commercial power output detection circuit 12 detects that no commercial power is output, that is, when the optical coupler U4 works and the optical coupler U5 does not work, it is said that the machine room switch is manually turned off, and at this time, the power supply circuit of the emergency power supply module 14 is in a cut-off state; if the commercial power input detection circuit 11 detects that no commercial power is input, it indicates that the elevator is in a power failure state, at this time, the control module 13 outputs a control signal for starting the emergency power supply module 14, and the emergency power supply module 14 is switched on and supplies power to the elevator control cabinet, so that the elevator can normally operate.
In summary, compared with the conventional method that the power on/off of the machine room switch is directly detected through the auxiliary contact to judge whether a fault or an abnormality occurs, the machine room switch can be judged whether to be manually turned off by detecting whether the mains supply is input through the mains supply input detection circuit 11 and detecting whether the mains supply is output through the mains supply output detection circuit 12, and the safety of a maintenance worker in the process of maintaining the elevator is ensured.
The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, any modifications, equivalent replacements, improvements, etc. made within the design concept of the present invention should be included within the protection scope of the present invention.
Claims (1)
1. The utility model provides an elevator has a power failure and meets an urgent need electric wire netting sampling module of flat bed device, include input and mains connection's computer lab switch, with the elevator control cabinet that the output of computer lab switch is connected and emergency device (1) for the power supply of elevator control cabinet when the elevator has a power failure or trouble, its characterized in that: the emergency device (1) comprises:
the commercial power input detection circuit (11) is used for detecting whether commercial power is input;
the commercial power output detection circuit (12) is used for detecting whether commercial power is output from the machine room switch;
the input end of the control module (13) is connected with the commercial power input detection circuit (11) and the commercial power output detection circuit (12) in parallel, and the control module is used for judging whether a machine room switch is turned off manually or not and outputting a corresponding control signal;
an emergency power supply module (14) coupled to an output of the control module (13) for receiving a control signal;
when the mains supply input detection circuit (11) detects that the mains supply is input and the mains supply output detection circuit (12) detects that no mains supply is output, the emergency power supply module (14) prohibits output;
when the mains supply input detection circuit (11) detects no mains supply input and the mains supply output detection circuit (12) detects no mains supply output, the emergency power supply module (14) allows starting output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921169260.6U CN210286365U (en) | 2019-07-24 | 2019-07-24 | Power grid sampling module of elevator power failure emergency leveling device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921169260.6U CN210286365U (en) | 2019-07-24 | 2019-07-24 | Power grid sampling module of elevator power failure emergency leveling device |
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| CN210286365U true CN210286365U (en) | 2020-04-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112027828A (en) * | 2020-08-05 | 2020-12-04 | 佛山市乐联科技有限公司 | Elevator emergency control system and elevator device |
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2019
- 2019-07-24 CN CN201921169260.6U patent/CN210286365U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112027828A (en) * | 2020-08-05 | 2020-12-04 | 佛山市乐联科技有限公司 | Elevator emergency control system and elevator device |
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210107 Address after: Room e504, Taiwan Science and technology enterprise cultivation center, Xiamen Torch hi tech Zone (Xiang'an) Industrial Zone, 361000, Fujian Province Patentee after: Xiamen Power Technology Co.,Ltd. Address before: Room e1005c, Taiwan Science and technology enterprise cultivation center, Xiamen Torch hi tech Zone (Xiang'an) Industrial Zone, 361000, Fujian Province Patentee before: XIAMEN WEIZHI ELECTRONIC TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |