CN112420449A - Elevator lock ladder system and elevator - Google Patents
Elevator lock ladder system and elevator Download PDFInfo
- Publication number
- CN112420449A CN112420449A CN202011339864.8A CN202011339864A CN112420449A CN 112420449 A CN112420449 A CN 112420449A CN 202011339864 A CN202011339864 A CN 202011339864A CN 112420449 A CN112420449 A CN 112420449A
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- elevator
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- electrical contact
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- 230000005540 biological transmission Effects 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/001—Functional circuits, e.g. logic, sequencing, interlocking circuits
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/02—Control systems without regulation, i.e. without retroactive action
- B66B1/06—Control systems without regulation, i.e. without retroactive action electric
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Elevator Control (AREA)
Abstract
The embodiment of the invention provides an elevator locking system and an elevator, wherein the elevator locking system comprises an elevator locking control loop, and the elevator locking control loop comprises a first loop and a second loop; the first loop is conducted in a non-locking ladder state and is disconnected after a signal for starting locking the ladder is received; the second loop is switched on after receiving a signal for locking the ladder and is switched off after receiving a signal for locking the ladder; the power supply control loop comprises a first power supply, a first electric contact and an elevator control cabinet; the elevator locking control loop controls the first electric contact to be closed or opened, if the first loop and/or the second loop are/is conducted, the first electric contact is closed, and the power supply control loop is conducted, so that the first power supply supplies power to the elevator control cabinet; if the first loop and the second loop are disconnected, the first electric contact is disconnected, and the power supply control loop is disconnected, so that the first power supply stops supplying power to the elevator control cabinet. The embodiment of the invention can enable the elevator control cabinet to be in a power-off state in the elevator locking state, thereby saving more energy.
Description
Technical Field
The embodiment of the invention relates to the field of elevators, in particular to an elevator locking system and an elevator.
Background
With the rapid development of the building market and the increase of the intelligent demand of the building in China, the use amount of the elevator is increased rapidly. The elevator mainly comprises a traction machine (winch), a guide rail, a counterweight, a safety device (such as a speed limiter, a safety gear, a buffer and the like), a signal control system, a car, a hall door and the like. These parts are installed in the hoistway and machine room of the building, respectively. Usually, a steel wire rope is used for friction transmission, the steel wire rope bypasses a traction sheave, two ends of the steel wire rope are respectively connected with a car and a balance weight, and a motor drives the traction sheave to lift the car.
The elevator locking function of the elevator refers to a mode that the elevator is out of a normal service state and passengers cannot use the elevator. If the elevator runs in a sudden power failure or the power supply line fails, the elevator can automatically lock the elevator. Because the elevator is provided with an electric and mechanical safety device, the brake of the elevator can automatically brake once a fault occurs, so that the elevator cannot run.
But the power consumption of the elevator is higher in the locking state at present.
Disclosure of Invention
The technical problem solved by the embodiment of the invention is to provide an elevator locking system and an elevator, and the problem that the elevator has high power consumption in a locking state is solved.
In order to solve the above problem, an embodiment of the present invention provides an elevator locking system, including: the locking ladder control loop comprises a first loop and a second loop which are connected in parallel; the first loop is conducted in a non-locking ladder state and is disconnected after a signal for starting locking the ladder is received; the second loop is switched on after receiving a signal for locking the ladder and is switched off after receiving a signal for locking the ladder; the power supply control circuit comprises a first power supply, a first electric contact and an elevator control cabinet; the elevator locking control loop controls the first electric contact to be closed or opened, if the first loop and/or the second loop are/is conducted, the first electric contact is closed, the power supply control loop is conducted, and therefore the first power supply supplies power to the elevator control cabinet; if the first loop and the second loop are disconnected, the first electric contact is disconnected, and the power supply control loop is disconnected, so that the first power supply stops supplying power to the elevator control cabinet.
The first circuit includes: the second power supply, the second switch and the first coil are connected in sequence; the second circuit includes: the second power supply, a third switch, and the first coil; the first coil controls the first electric contact to be closed or opened, and the first coil and the first electric contact form a first switch; in the non-locking ladder state, the second switch is closed; after a signal for locking the elevator is received, the second switch is opened, and the third switch is closed; and after the signal of locking the ladder is received, the third switch and the second switch are both disconnected.
The second switch includes: a second electrical contact and a second coil that controls the closing or opening of the second electrical contact; further comprising: a third power supply that supplies power to the second coil.
The third switch includes: a third electrical contact and a third coil, the third coil controlling the closing or opening of the third electrical contact; further comprising: a fourth power supply that supplies power to the third coil.
The first electric contact is a normally open electric contact.
The second electrical contact is a normally closed electrical contact.
The third electrical contact is a normally closed electrical contact.
The first power supply is strong current.
The second power supply is weak current.
An embodiment of the present invention further provides an elevator, including: elevator locking system as described above.
Compared with the prior art, the technical scheme provided by the embodiment of the invention has the following advantages:
the elevator locking system comprises a locking elevator control loop and a power supply control loop, wherein the power supply control loop comprises a first power supply, a first electric contact and an elevator control cabinet. The elevator locking control loop controls the first electric contact to be closed or opened, so that the elevator control cabinet can be powered on in a non-elevator locking state or after receiving a signal for starting elevator locking; the elevator control cabinet can lose power after receiving the signal of locking the elevator, so that the elevator does not consume power in the elevator locking state, and the aim of saving energy is fulfilled.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
Fig. 1 is a functional block diagram of an elevator locking control system according to a first embodiment of the present invention.
Detailed Description
As can be seen from the background art, the elevator of the prior art has a high power consumption in the locked state.
The analysis shows that the main reasons comprise: after the existing elevator enters an elevator locking state, an elevator control cabinet is still electrified and cannot be served by a system, and the elevator is still in a power consumption state at the moment.
In order to solve the above problems, embodiments of the present invention provide an elevator locking system and an elevator. The elevator locking system comprises a locking elevator control loop and a power supply control loop, wherein the power supply control loop comprises a first power supply, a first electric contact and an elevator control cabinet. The elevator locking control loop controls the first electric contact to be closed or opened, so that the elevator control cabinet can be powered on in a non-elevator locking state or after receiving a signal for starting elevator locking; the elevator control cabinet can lose power after receiving the signal of locking the elevator, so that the elevator does not consume power in the elevator locking state, and the aim of saving energy is fulfilled.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that in various embodiments of the invention, numerous technical details are set forth in order to provide a better understanding of the present application. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments.
A first embodiment of the present invention provides an elevator locking system. Fig. 1 is a schematic view of an elevator locking system provided in this embodiment, and referring to fig. 1, the elevator locking system includes: the elevator locking control loop 100, wherein the elevator locking control loop 100 comprises a first loop and a second loop which are connected in parallel; the first loop is conducted in a non-locking ladder state and is disconnected after a signal for starting locking the ladder is received; the second loop is switched on after receiving a signal for locking the ladder and is switched off after receiving a signal for locking the ladder; a power control circuit 110, wherein the power control circuit 110 comprises a first power supply 111, a first electric contact 112 and an elevator control cabinet 113; the elevator locking control loop 110 controls the first electric contact 112 to be closed or opened, if the first loop and/or the second loop are/is conducted, the first electric contact 112 is closed, and the power supply control loop 110 is conducted, so that the first power supply 111 supplies power to the elevator control cabinet 113; when the first and second circuits are disconnected, the first electrical contact 112 is opened, and the power supply control circuit 110 is disconnected, so that the first power supply 111 stops supplying power to the elevator control cabinet 113.
The following detailed description will be made in conjunction with the accompanying drawings.
The elevator control cabinet 113 is an electric control device in which various electronic devices and electric components are installed in a cabinet-shaped structure having a safety protection function, and may also be called as an elevator central control cabinet. The elevator control cabinet 113 is a device for controlling the operation of the elevator, and in general, the elevator control cabinet 113 may have the following general functions: the centralized selection control is a height automatic control function which intensively carries out comprehensive analysis processing on various signals such as instructions in the elevator car, hall calls and the like; and (4) stopping the elevator, namely stopping the elevator at the appointed floor through an elevator stopping switch at night, on weekends or on holidays. When the elevator is stopped, the car door is closed, the lighting and the fan are powered off, so that the electricity is saved and the safety is improved; full load control, when the car is full load, no response is made to the call outside the hall; and (4) fault detection, namely recording the faults in a microcomputer memory, and stopping the elevator when the faults exceed a certain number.
The first power supply 111 for supporting the normal operation of the elevator control cabinet 113 is strong because of its many functions. The strong electricity is characterized by large power, large current, large power and low frequency, and the voltage of the strong electricity is generally more than 24V. The object of strong electric power is energy (electric power), and the main consideration is to reduce loss and improve efficiency. Strong electricity is transmitted by a power transmission line.
The opening or closing of the first electrical contact 112 determines the opening or closing of the power control loop 110 and determines the power on or power off of the elevator control cabinet 113. After receiving the signal of locking the elevator, namely in the state of locking the elevator, the first electric contact 112 is disconnected, so that the elevator control cabinet 113 loses power, and the purpose of energy conservation is achieved.
The first electrical contact 112 is also controlled by the first coil 104. The first coil 104 controls the closing or opening of the first electrical contact 112, and the first coil 104 and the first electrical contact 112 constitute a first switch 130.
The first switch 130 is a relay, which is an electric control device, and is an electric appliance that generates a predetermined step change in the controlled amount in an electric output circuit when a change in the input amount meets a predetermined requirement. Relays are commonly used in automated control circuits, which are actually automatic switches that use small currents to control large current operations. Generally, a relay is composed of a coil and an electric contact, and when a current of a certain value or more flows through the coil, an electromagnetic attraction force is generated, and the electric contact can be driven to operate by the electromagnetic attraction force. That is, the opening and closing of the electrical contacts can be controlled by the voltage and current (input signal) applied to the coil.
The first switch 130 plays a role of an automatic regulation, safety protection, and switching circuit for the power control loop 110.
The first electrical contact 112 is a normally open electrical contact, which is in an open state when not powered, that is, the normally open electrical contact is open in an original normal state, and once powered, the state of the normally open electrical contact is reversed and becomes a closed state. Therefore, when the elevator control circuit 100 is on, the first electrical contact 112 is in the energized operating state, and the first electrical contact 112 is closed.
In other embodiments, the first electrical contact may also be configured as a normally closed electrical contact. When the elevator locking control loop is disconnected, the first electric contact is in a closed state, and the elevator control cabinet is electrified; when the elevator locking control loop is switched on, the first electric contact is in a disconnected state, and the elevator control cabinet loses power.
The elevator locking control circuit 100 is used for controlling the power supply control circuit 110 to be switched on or switched off, so that the elevator control cabinet 113 can be powered on in a non-elevator locking state or after receiving an elevator locking starting signal, and normal operation of the elevator is ensured; the elevator control cabinet 113 can lose power after receiving the signal of locking the elevator, so as to achieve the purpose of energy saving.
Specifically, the elevator locking control loop 100 includes a first loop and a second loop. The first loop and the second loop are matched with each other, so that the rapid switching of elevator power supply under three states of non-locking, locking and locking can be ensured.
The first circuit includes: a second power supply 101, a second switch 140 and a first coil 104 connected in sequence; the second switch 140 includes: a second electrical contact 102 and a second coil 105, the second coil 105 controlling the closing or opening of the second electrical contact 102; the first circuit further includes: and a third power source 106, the third power source 106 supplying power to the second coil 105.
The second circuit includes: a second power source 101, a third switch 150 and a first coil 104 connected in sequence. The third switch 150 includes: a third electrical contact 103 and a third coil 107, the third coil 107 controlling the closing or opening of the third electrical contact 103; the second circuit further includes: a fourth power supply 108, the fourth power supply 108 supplying power to the third coil 107.
The second power supply 101, the third power supply 106 and the fourth power supply 108 are weak current, and are characterized by low voltage, low current, low power and high frequency, the processing objects of the weak current are mainly information, namely the transmission and control of the information, the voltage of the weak current is generally within 36V, and the transmission of the weak current is divided into wired and wireless. The main reason why the second power supply 101, the third power supply 106 and the fourth power supply 108 are weak is that they are used to change the state of the first circuit or the second circuit, i.e. to transmit the state signal of the elevator to the power control circuit 110, and not to maintain the operation of the components of the elevator. Therefore, the second power source 101 is weak, which can save energy and improve the safety of the circuit and the accuracy of information transmission.
A second electrical contact 102 and a third electrical contact 103 for making or breaking an electrical circuit. When a different signal is received, the state of the lock ladder control loop 100 may be changed by changing the state of the second electrical contact 102 or the third electrical contact 103.
In this embodiment, the second electrical contact 102 and the third electrical contact 103 are normally closed electrical contacts. It can be understood that if the second electrical contact 102 has a wiring problem, the second electrical contact 102 changes from the original closed state to the open state, and the change of the state affects the change of the circuit when the second electrical contact 102 is not powered, so that the fault of the second electrical contact 102 is more easily detected. Similarly, if the third electrical contact 103 has a line problem, the third electrical contact 103 changes from the original closed state to the open state, and the change of the state affects the change of the circuit when the third electrical contact 103 is not powered, so that the fault of the third electrical contact 103 is more easily detected. Therefore, the second electrical contact 102 and the third electrical contact 103 adopt the normally closed electrical contact, which can improve the safety and stability of the whole circuit.
In other embodiments, the second and third electrical contacts may also be normally open electrical contacts.
The elevator mainly comprises three states: firstly, a non-ladder-locking state; secondly, receiving a signal for locking the elevator; and thirdly, receiving a signal of locking the ladder. The circuit in the three states will be described in detail below:
in the normal operation process of the elevator, namely the elevator is in a non-elevator-locking state, the second switch 140 is closed, the first loop is conducted, specifically, the third power supply 106 is closed, and the second coil 105 loses power, so that the second electric contact 102 is kept in the original closed state; thus, the second power supply 101 supplies power to the first coil 104 through the second electrical contact 102; at this time, the first coil 104 makes the first electrical contact 112 in a closed state, and the power control circuit 110 is turned on.
In this embodiment, when the elevator is in the non-locking state, the third switch 150 is also closed, the second loop is also turned on, specifically, the fourth power supply 108 is turned off, and the third coil 107 is de-energized, so that the third electrical contact 103 also maintains the original closed state; thus, the second power supply 101 may also supply power to the first coil 104 through the third electrical contact 103; at this time, the first coil 104 makes the first electrical contact 112 in a closed state, and the power control circuit 110 is turned on.
After receiving the signal for starting the elevator locking, the second switch 140 is opened, the first loop is opened, specifically, the third power supply 106 is opened, the third power supply 106 supplies power to the second coil 105, and the second coil 105 changes the original closed state of the second electrical contact 102, so that the second electrical contact 102 is opened; the third switch 150 is closed, the second circuit is turned on, specifically, the fourth power supply 108 is in an off state, and the third coil 107 is de-energized, so that the third electrical contact 103 maintains the original closed state; thus, the second power source 101 supplies power to the first coil 104 through the third electrical contact 103 to close the first electrical contact 112.
That is, in the present embodiment, the second electrical contact 102 is closed in the non-locking ladder state, and is opened after receiving the signal of locking ladder start; the third electrical contact 103 is in a closed state both in the non-locking ladder state and after receiving a signal that the locking ladder starts. Since the first loop and the second loop are both turned on in the non-ladder-locking state, only turning off the first loop after receiving the signal for starting ladder locking does not change the state of the power control loop 110. The power control loop 110 still maintains good stability at the moment the first loop is switched off.
In other embodiments, only the second electrical contact may be closed and the third electrical contact opened during normal operation of the elevator. After a signal for locking the ladder is received, the second electric contact is immediately disconnected, the third electric contact is immediately conducted, the first loop is disconnected, the second loop is closed, and the power supply control loop is kept conducted.
After receiving the signal for locking the elevator, the elevator control cabinet 113 is still in a power consumption state, mainly because the elevator needs to execute an elevator locking command, such as returning to an elevator locking base station and closing the door in a delayed manner. Therefore, after the signal for locking the elevator is received, the second loop is kept in a conducting state, the elevator control cabinet 113 can be ensured to complete corresponding control operation, and the stability and the safety of the whole elevator are facilitated.
After receiving the signal that the locking of the elevator is completed, the second switch 140 and the third switch 150 are both turned off, so that the first loop and the second loop are both turned off, specifically, the fourth power supply 108 and the third power supply 106 are both turned on, and the third coil 107 and the second coil 105 are both powered, so that the third electrical contact 103 and the second electrical contact 102 are both turned off; accordingly, the first coil is de-energized 104, thereby causing the first electrical contact 112 to open.
I.e. after receiving a letter that the locking ladder is completed, the third electrical contact 103 has changed from closed to open, while the second electrical contact 103 remains open and its state has not changed. At this time, the power control circuit 110 is disconnected, and the power control cabinet 113 does not consume power any more, thereby achieving the purpose of energy saving in the lock ladder state.
After the elevator locking switch is recovered, the second switch 140 and the third switch 150 are both opened, the first loop and the second loop are both conducted, specifically, the third power supply 106 and the fourth power supply 108 are both closed, the second coil 105 and the third coil 107 are both de-energized, so that the second electrical contact 102 and the third electrical contact 103 are both closed, the elevator locking control loop 100 is conducted, and the first coil 104 is energized; the first electrical contact 112 is then closed, the elevator control cabinet 113 is energized and the elevator is put into normal service.
In other embodiments, after the locking ladder switch is restored, only the second electrical contact may be closed, that is, only the first loop is conducted.
In summary, in this embodiment, the elevator locking control loop controls the first electrical contact to be closed or opened, so that the elevator control cabinet can be powered on in a non-elevator locking state or after receiving a signal for starting elevator locking; the elevator control cabinet can lose power after receiving the signal of locking the elevator, so that the elevator does not consume power in the elevator locking state, and the aim of saving energy is fulfilled.
A second embodiment of the invention provides an elevator comprising the elevator locking system of the first embodiment.
In a non-elevator-locking state and after receiving an elevator locking starting signal, the elevator locking control loop controls the first electric contact to be closed or opened, so that the elevator control cabinet can be powered on in the non-elevator-locking state or after receiving the elevator locking starting signal, and the whole elevator is in a power consumption state; the elevator control cabinet can lose power after receiving the signal of locking the elevator, so that the elevator does not consume power in the elevator locking state, and the aim of saving energy is fulfilled.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. An elevator locking system, comprising:
the locking ladder control loop comprises a first loop and a second loop which are connected in parallel; the first loop is conducted in a non-locking ladder state and is disconnected after a signal for starting locking the ladder is received; the second loop is switched on after receiving a signal for locking the ladder and is switched off after receiving a signal for locking the ladder;
the power supply control circuit comprises a first power supply, a first electric contact and an elevator control cabinet; the elevator locking control loop controls the first electric contact to be closed or opened, if the first loop and/or the second loop are/is conducted, the first electric contact is closed, the power supply control loop is conducted, and therefore the first power supply supplies power to the elevator control cabinet; if the first loop and the second loop are disconnected, the first electric contact is disconnected, and the power supply control loop is disconnected, so that the first power supply stops supplying power to the elevator control cabinet.
2. The elevator locking system of claim 1, wherein the first loop comprises: the second power supply, the second switch and the first coil are connected in sequence; the second circuit includes: the second power supply, a third switch, and the first coil; the first coil controls the first electric contact to be closed or opened, and the first coil and the first electric contact form a first switch; in the non-locking ladder state, the second switch is closed; after a signal for locking the elevator is received, the second switch is opened, and the third switch is closed; and after the signal of locking the ladder is received, the third switch and the second switch are both disconnected.
3. The elevator locking system of claim 2, wherein the second switch comprises: a second electrical contact and a second coil that controls the closing or opening of the second electrical contact; further comprising: a third power supply that supplies power to the second coil.
4. The elevator locking system of claim 2, wherein the third switch comprises: a third electrical contact and a third coil, the third coil controlling the closing or opening of the third electrical contact; further comprising: a fourth power supply that supplies power to the third coil.
5. The elevator locking system of claim 1, wherein the first electrical contact is a normally open electrical contact.
6. The elevator locking system according to claim 3, wherein the second electrical contact is a normally closed electrical contact.
7. The elevator locking system of claim 4, wherein the third electrical contact is a normally closed electrical contact.
8. The elevator lock system according to claim 1, wherein the first power source is a high power.
9. The elevator locking system of claim 2, wherein the second power source is a weak current.
10. An elevator, characterized by comprising: the elevator locking system of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011339864.8A CN112420449B (en) | 2020-11-25 | 2020-11-25 | Elevator locking system and elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011339864.8A CN112420449B (en) | 2020-11-25 | 2020-11-25 | Elevator locking system and elevator |
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| Publication Number | Publication Date |
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| CN112420449A true CN112420449A (en) | 2021-02-26 |
| CN112420449B CN112420449B (en) | 2024-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011339864.8A Active CN112420449B (en) | 2020-11-25 | 2020-11-25 | Elevator locking system and elevator |
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| Country | Link |
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| CN (1) | CN112420449B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115028030A (en) * | 2022-06-30 | 2022-09-09 | 广州广日电梯工业有限公司 | Elevator locking method, system, device and storage medium of elevator system |
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| CN102285564A (en) * | 2011-07-18 | 2011-12-21 | 中铁建工集团有限公司 | External elevator door interlocking system for building and method thereof |
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| CN115028030B (en) * | 2022-06-30 | 2023-12-19 | 广州广日电梯工业有限公司 | Elevator locking method, system and device of elevator system and storage medium |
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| Publication number | Publication date |
|---|---|
| CN112420449B (en) | 2024-03-19 |
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