CN220976175U - Measuring device for elevator - Google Patents
Measuring device for elevator Download PDFInfo
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- CN220976175U CN220976175U CN202322289935.3U CN202322289935U CN220976175U CN 220976175 U CN220976175 U CN 220976175U CN 202322289935 U CN202322289935 U CN 202322289935U CN 220976175 U CN220976175 U CN 220976175U
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- 238000005259 measurement Methods 0.000 claims description 34
- 238000004891 communication Methods 0.000 claims description 23
- 238000010586 diagram Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000006386 memory function Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Indicating And Signalling Devices For Elevators (AREA)
Abstract
There is provided a measuring device for an elevator, characterized in that the measuring device comprises a wiring block, a switch, a current measuring part, a power measuring part and a first cable, the wiring block comprising a wire inlet terminal and a wire outlet terminal; a first end of the switch is connected to the outlet terminal and a second end is connected to an input end of the power measuring part; the first cable passes through the current measuring part and extends to the outside of the measuring device, a first end of the first cable is connected to the outgoing terminal and a second end of the first cable can be connected to a control cabinet of the elevator; the output of the current measuring section is connected to the input of the power measuring section.
Description
Technical Field
The present utility model relates to a measuring device, and more particularly, to a measuring device for measuring power consumption of an elevator.
Background
Currently measuring elevator power consumption generally relies on adding a power meter and a current transformer in the control cabinet of the elevator. Current transformers typically require three to support measurement of the current of each of the three phase cables. The addition of power meters and current transformers requires a lot of wiring work in the field. For example, it is necessary to disassemble the control cabinet of the elevator, find the proper place to place the power meter and current transformer, disconnect the cable connecting the power supply, route the cable through the current transformer, finish the wiring between the power meter and the control cabinet, finish the wiring between the power meter and the current transformer, restore the connection of the cable connecting the power supply, etc. This requires many man-hours in the field and the wiring modification work may cause damage to the control cabinet. In addition, the wiring of the third party control cabinet may not be allowed to change due to regulations in certain countries or regions.
Disclosure of utility model
In view of the above, the present utility model provides a measuring device, characterized in that the measuring device includes a wiring block, a switch, a current measuring section, a power measuring section, and a first cable, the wiring block including a wire inlet terminal and a wire outlet terminal; a first end of the switch is connected to the outlet terminal and a second end is connected to an input end of the power measuring part; the first cable passes through the current measuring part and extends to the outside of the measuring device, a first end of the first cable is connected to the outgoing terminal and a second end of the first cable can be connected to a control cabinet of the elevator; the output of the current measuring section is connected to the input of the power measuring section.
Optionally, the input terminal of the power measurement portion includes a current signal input terminal and a voltage signal input terminal, the output terminal of the current measurement portion is connected to the current signal input terminal, and the second terminal of the switch is connected to the voltage signal input terminal.
Optionally, the measuring device further comprises a communication part communicatively coupled with an output of the power measuring part to receive the measurement result of the power measuring part therefrom and to transmit the measurement result to an external device.
Optionally, the cable is a three-phase cable, and the current measurement part includes three current transformers through which each phase cable of the three-phase cable passes.
Optionally, the measuring device further comprises a rechargeable battery connected in series between the switch and the power measuring part such that the switch is charged when energized and the switch is powered off.
Optionally, the rechargeable battery is further connected to the communication part to supply power to the communication part when the switch is powered off.
Optionally, the measuring device further comprises a storage device communicatively coupled to the output of the power measurement section to receive and store the measurement result of the power measurement section therefrom.
Optionally, the measuring device further comprises a housing provided with an incoming opening and an outgoing opening, wherein a second cable connected to the power supply of the elevator is connected to the incoming terminal of the terminal block through the incoming opening, and the first cable extends outside the measuring device through the outgoing opening.
The measuring device according to an embodiment of the utility model has integrated the function of measuring the power consumption of the elevator. The power consumption of the elevator can be measured by connecting the measuring device between the power supply of the elevator and the control cabinet of the elevator, the control cabinet of the elevator is not required to be disassembled for arranging the power meter and the current transformer, and wiring in the control cabinet is not required to be modified. Therefore, a large amount of field working hours generated by arranging the power meter and the current transformer in the control cabinet are saved, and the problem that the power consumption of the elevator cannot be measured because the wiring of the control cabinet cannot be modified or the control cabinet is damaged because the wiring of the control cabinet is modified improperly is avoided.
Drawings
These and/or other aspects, features and advantages of the present utility model will become more apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, which are directed to some embodiments of the present utility model only, and not to limitations of the present utility model, wherein:
FIG. 1 shows a schematic view of a usage scenario of a measurement device according to an embodiment of the present utility model;
FIG. 2 shows a schematic structural view of a measuring device according to an embodiment of the present utility model;
Fig. 3 shows a schematic structural view of a measuring device according to another embodiment of the present utility model; and
Fig. 4 shows a schematic structural diagram of a measuring device according to another embodiment of the present utility model.
Detailed Description
The present utility model will be described in detail below with reference to exemplary embodiments thereof. The utility model is not limited to the embodiments described herein, however, which may be embodied in many different forms. The described embodiments are intended only to provide a thorough and complete understanding of the present utility model and to fully convey the concept of the utility model to those skilled in the art. Features of the various embodiments described may be combined with or substituted for one another, unless expressly excluded or excluded depending on the context.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another.
In the novel embodiments of this implementation, unless explicitly stated otherwise, "connected" does not mean "directly connected" or "directly contacted" but only electrically connected.
In the drawings, the same reference numerals denote constituent parts of the same or similar structures or functions, and a repetitive description thereof will be omitted from the following description.
Fig. 1 shows a schematic view of a usage scenario of a measuring device according to an embodiment of the utility model.
Referring to fig. 1, a measuring apparatus 1 according to an embodiment of the present utility model is disposed between a power supply 3 of an elevator 2 and a control cabinet 4 of the elevator 2, so that power consumption of the elevator 2 can be easily measured. The power supply 3 is turned off when placed in the "O" position and turned on when placed in the "I" position. The measuring device 1 is connected to the control cabinet 4 of the elevator via a first cable 15. The power supply 3 may be connected to the measuring device 1 via a second cable 5. In this context, the elevator 2 may be either an escalator or a car. The control cabinet 4 is equipment responsible for controlling the start-stop and operation of the elevator 2.
Fig. 2 shows a schematic structural diagram of a measuring device according to an embodiment of the utility model.
Referring to fig. 2, the measuring device 1 includes a wiring block 11, a switch 12, a current measuring section 13, a power measuring section 14, and a first cable 15.
The terminal block 11 includes an incoming terminal 111 and an outgoing terminal 112. The incoming and outgoing terminals 111, 112 may include a plurality of incoming and outgoing terminals corresponding to the three-phase, neutral and ground wires, respectively. As is well known, L1, L2, L3, N, PE are used as symbols representing the three phases of live, neutral, ground, respectively.
One end of the second cable 5 is connected to the power supply 3 and the other end can be connected to the incoming line terminal 111 to input power to the measuring device 1. The second cable 5 may comprise a single cable or may comprise a plurality of cables connected together by cable connectors, such as connectors similar to aircraft connectors. The power supply 3 may be a three-phase power supply, for example, a 380V three-phase power supply. The second cable 5 may be, for example, a three-phase cable, each of which may be connected to a respective one of the plurality of incoming terminals 111 (e.g., labeled L1, L2, L3, respectively) corresponding to three phases.
The switch 12 is used to control the power on or off of the measuring device 1. For example, the first end of the switch 12 is connected to the outlet terminal 112 of the outlet row 11, and the second end is connected to the input end of the power measuring section 14. For ease of illustration, the switch 12 is shown simply, but it should be understood that the switch 12 may be a three-phase switch, with the first and second ends including terminals (e.g., labeled L1, L2, L3, respectively) corresponding to three phases, respectively.
The first cable 15 passes through the current measuring section 13 and extends outside the measuring device 1. The first cable 15 has a first end connected to the outlet terminal 112 and a second end connectable to the control cabinet of the elevator. As shown, a first end of the first cable 15 is connected to the outlet terminal 112 of the wiring block 11. The second end of the first cable 15 passes through the current measuring section 13 so that the current measuring section 13 can measure the current flowing in the first cable 15. The first cable 15 extends outside the measuring device 1 such that the first cable 15 can be connected to the control cabinet 4 of the elevator either directly or via an additional connector and an additional cable. Similar to the second cable 5, the first cable 15 may also be a three-phase cable, the first end of each phase of which is connected to an outlet terminal (e.g., labeled L1, L2, L3, respectively) of the plurality of outlet terminals 112, respectively corresponding to three phases.
The inputs of the power measurement section 14 may include a current signal input and a voltage signal input. An output terminal of the current measuring section 13 is connected to a current signal input terminal of the power measuring section 14. A second terminal of the switch 12 is connected to a voltage signal input of the power measuring section 14. For example, the power measuring section 14 may include a power meter having three current signal input terminals corresponding to each of three-phase currents and three voltage signal input terminals corresponding to each of three-phase voltages. The power meter also has one or more outputs, one of which may be, for example, a serial communication interface for coupling with a communication part described later, via which the measurement results thereof may be output.
The current measuring section 13 may comprise, for example, a through current transformer allowing the first cable 15 to pass therethrough, or may comprise other forms of current sensors that sense the current flowing in the first cable 15 in other installations. For example, the current measuring section 13 includes three current transformers allowing each phase cable of the first cables 15 as three-phase cables to pass therethrough, respectively. An output terminal of the current measuring part 13 is connected to a current signal input terminal of the power measuring part 14 to transmit the sensed current signal to the power measuring part 14.
Thus, when the power supply 3 is placed in the energized position (i.e., the "I" position shown in the figure) and the switch 12 is closed, a current flows through the first cable 15, and the current measuring section 13 senses this current. The power measuring section 14 receives the current signal sensed by it from the current measuring section 13 and measures the voltage signal from the switch 12, and then calculates a power value based on the current signal and the voltage signal as a measurement result of the power consumption of the elevator 2.
In this way, the function of measuring the power consumption of the elevator is already integrated in the measuring device 1 and the installation of the measuring device 1 is simple and quick. For example, the installation of the measuring device 1 is completed by simply connecting the second cable 5 connected to the power supply 3 to the incoming line terminal 111 of the wiring block 11 and connecting the first cable 15 to the control cabinet 4. Compared with the prior art, the measuring device 1 is used for measuring the power consumption of the elevator, which is convenient and quick, saves a large amount of field working hours, and also avoids the situation that the measurement cannot be implemented because the wiring of the control cabinet cannot be modified or the control cabinet is damaged because the wiring of the control cabinet is modified.
Fig. 3 shows a schematic structural diagram of a measuring device according to another embodiment of the utility model.
Referring to fig. 3, the measuring device 1 is different from fig. 2 in that it further includes a communication section 16. The communication section 16 is communicatively coupled with an output terminal of the power measurement section 14 to receive a measurement result of the power measurement section 14 therefrom and transmit the measurement result to an external device. For example, the output of the power measurement section 14 includes a serial communication interface (e.g., a serial communication interface conforming to serial communication interface standard RS-485), which may be coupled to the communication section 16. The communication section 16 may include a communication module capable of communicating with an external device via at least one of a wireless local area network, the internet of things, and the like. The external device may be a data terminal device (DTU, data Transfer Unit) in the elevator system dedicated to gathering and storing elevator-related data or a computing device with the function of storing and processing elevator-related data or the like. The communication portion 16 may include an antenna, a WiFi module, an RF chip, and/or other components that enable it to communicate with external devices.
Fig. 4 shows a schematic structural diagram of a measuring device according to another embodiment of the present utility model.
Referring to fig. 4, the measuring device 1 differs from fig. 2 and 3 in that it further comprises a rechargeable battery 17. The rechargeable battery 17 is connected in series between the switch 12 and the power measuring unit 14, and can be charged when the switch 12 is energized and discharged when the switch 12 is deenergized to supply power to the power measuring unit 14. The rechargeable battery 17 is also connected to the communication section 16 so that it can be discharged to supply power to the communication section 16 when the switch 12 is powered off. As shown, when the power supply 3 is placed in the energized position (i.e., the "I" position shown in the figure) and the switch 12 is closed, the rechargeable battery 17 is charged. When the power supply 3 is placed in the power-off position (i.e., the "O" position shown in the figure) and/or the switch 12 is turned off, the rechargeable battery 17 discharges to serve as a backup power source for the power measuring section 14 and the communication section 16, which is advantageous in avoiding interruption of the operation of the power measuring section 14 and the communication section 16 due to abrupt power-off.
Furthermore, referring back to fig. 2, the measuring device 1 may also comprise a housing 18. The housing 18 is provided with an inlet opening 181 and an outlet opening 182 (shown in phantom in fig. 2). The second cable 5 connected to the power supply 3 is connected to the incoming terminal 111 of the wiring block 11 through the incoming opening 181. The first cable 15 extends through the outlet opening 182 to the outside of the measuring device 1.
Furthermore, the measuring device 1 may also comprise a storage device 19 (not shown for simplicity). The storage means 19 may also be communicatively coupled with the output of the power measurement section 14, for example via a serial communication interface, to receive power measurements from the power measurement section 14 and to store the measurements. The storage means 19 may also be connected to the rechargeable battery 17 so that the rechargeable battery 17 also serves as its backup power source. Alternatively, in another embodiment, the power measuring section 14 having a memory function and/or the communication section 16 having a memory function may be used instead of the memory device 19, so that the internal structure of the measuring device 1 is simpler.
The measuring device provided by the embodiment of the utility model integrates the current transformer and the power meter which are manually installed in the control cabinet of the elevator, does not occupy a large amount of man-hours on site to disassemble the control cabinet of the elevator and complete wiring among the current transformer, the power meter and the control cabinet, and is convenient and quick to measure the power consumption of the elevator.
The block diagrams of circuits, devices, means, devices, and arrangements referred to in this disclosure are meant as illustrative examples only and are not intended to require or imply that the connections, arrangements, and configurations must be made in the manner shown in the block diagrams. As will be appreciated by one of skill in the art, the circuits, devices, means, apparatus may be connected, arranged, configured in any manner as long as the desired purpose is achieved.
It will be appreciated by persons skilled in the art that the above-described embodiments are merely examples and that various modifications, combinations, partial combinations and substitutions may be made to the embodiments of the utility model according to design requirements and other factors, provided that they fall within the scope of the appended claims or their equivalents, i.e. within the scope of the claims to be protected.
Claims (8)
1. A measuring device for an elevator, characterized in that,
The measuring device comprises a wiring row, a switch, a current measuring part, a power measuring part and a first cable,
The wiring row comprises an incoming line terminal and an outgoing line terminal;
A first end of the switch is connected to the outlet terminal and a second end is connected to an input end of the power measuring part;
The first cable passes through the current measuring part and extends to the outside of the measuring device, a first end of the first cable is connected to the outgoing terminal and a second end of the first cable can be connected to a control cabinet of the elevator;
the output of the current measuring section is connected to the input of the power measuring section.
2. The measuring device according to claim 1, wherein,
The input end of the power measuring part comprises a current signal input end and a voltage signal input end, the output end of the current measuring part is connected to the current signal input end, and the second end of the switch is connected to the voltage signal input end.
3. The measurement device of claim 1, further comprising:
and a communication part communicatively coupled with an output end of the power measurement part to receive a measurement result of the power measurement part therefrom and transmit the measurement result to an external device.
4. The measuring device according to claim 1, wherein,
The cable is a three-phase cable, and the current measuring part comprises three current transformers through which each phase cable of the three-phase cable passes.
5. A measurement device according to claim 3, further comprising:
and a rechargeable battery connected in series between the switch and the power measuring part so as to be charged when the switch is powered on and to supply power to the power measuring part when the switch is powered off.
6. The measuring apparatus according to claim 5, wherein,
The rechargeable battery is also connected to the communication section to supply power to the communication section when the switch is powered off.
7. The measurement device of claim 1, further comprising:
And a storage device communicatively coupled to the output of the power measurement section to receive and store the measurement results of the power measurement section therefrom.
8. The measurement device of any one of claims 1-7, further comprising:
a shell provided with an inlet wire opening and an outlet wire opening,
Wherein a second cable connected to the power supply of the elevator is connected to the incoming terminal of the terminal block through the incoming opening, and the first cable extends outside the measuring device through the outgoing opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322289935.3U CN220976175U (en) | 2023-08-24 | 2023-08-24 | Measuring device for elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322289935.3U CN220976175U (en) | 2023-08-24 | 2023-08-24 | Measuring device for elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220976175U true CN220976175U (en) | 2024-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322289935.3U Active CN220976175U (en) | 2023-08-24 | 2023-08-24 | Measuring device for elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220976175U (en) |
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2023
- 2023-08-24 CN CN202322289935.3U patent/CN220976175U/en active Active
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