CN218708376U - Elevator safety power utilization alarm system - Google Patents
Elevator safety power utilization alarm system Download PDFInfo
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- CN218708376U CN218708376U CN202221004145.5U CN202221004145U CN218708376U CN 218708376 U CN218708376 U CN 218708376U CN 202221004145 U CN202221004145 U CN 202221004145U CN 218708376 U CN218708376 U CN 218708376U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
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Abstract
The utility model relates to an elevator safety power consumption alarm system, include: the data monitoring circuit is provided with a residual current transformer which is used for measuring the leakage current of the elevator power supply loop; the control circuit is connected with the residual current transformer and is used for comparing the leakage current with a threshold value to output an alarm signal; the first alarm circuit is arranged on the elevator power supply box, is connected with the control circuit and is used for giving an alarm according to the alarm signal; a second alarm circuit disposed at a remote end; and a coil of the intermediate relay is connected with the first alarm circuit in series, and a normally open contact of the intermediate relay is connected with the second alarm circuit in series so as to realize the alarm action of the second alarm circuit. Through the utility model discloses a scheme can help the on-the-spot personnel in time to discover elevator electric leakage accident, shorten accident discovery time, helps the quick solution of accident.
Description
Technical Field
The utility model belongs to the technical field of the elevator safety electricity consumption. More specifically, the utility model relates to an elevator safety electricity utilization alarm system.
Background
In the prior art, because the safety accidents of the elevator are mostly caused by the problems of the control system of the elevator, the electrical safety detection system of the elevator is usually used for detecting the control system of the elevator, for example, safety components such as a door lock, a speed limiter, a safety clamp and a buffer of the elevator, and the detection of the electric leakage accidents of the elevator is relatively less. Although there are some elevator earth leakage protection devices, such as earth leakage circuit breaker, the earth leakage circuit breaker is composed of earth leakage protector and automatic air circuit breaker, the earth leakage current of the elevator is detected by the earth leakage protector, when the detected earth leakage current is larger than the set action current, the automatic air circuit breaker will automatically trip to cut off the earth leakage current, and the earth leakage protection function is played. However, when such a ground fault interrupter is used, it is necessary to appropriately set the operating current, and if the set operating current is too small, the ground fault interrupter is likely to malfunction. For example, when the elevator is started, the starting current is large, the leakage current is also large, and if the set action current is too small, the elevator trips once being started, so that the normal operation of the elevator is seriously influenced.
For the operation of the elevator in the building for animal breeding, the elevator has the fire-lighting and electricity-leakage accidents of the sliding contact line, if the electricity-leakage accidents of the elevator cannot be found in time, the situation develops at will, the life safety of personnel and the safety of breeding organisms can be threatened, and the loss is serious. If adopt current leakage circuit breaker as the earth leakage protection of elevator, though can play earth leakage protection's effect to a certain extent, if the action current sets up unreasonablely, appear the elevator in case the condition of tripping operation just starts easily, and then influence the safe orderly operation of breeding production. If the leakage breaker suddenly trips when the elevator runs, not only can the transportation system be stopped, but also the life safety of personnel and the safety of cultured organisms can be threatened.
Therefore, the elevator in the building for animal breeding in the prior art does not have an effective safe electricity utilization detection mechanism, so that the transport system is easy to break down, the safe and orderly operation of breeding production is seriously affected, the breeding production profit is threatened, and great economic loss is caused.
SUMMERY OF THE UTILITY MODEL
In order to solve above-mentioned one or more technical problem, the utility model discloses a detect elevator power supply circuit to in time report an emergency and ask for help or increased vigilance when realizing that the elevator power supply is unusual, thereby effectively promote the reliability of elevator operation, guarantee the safe orderly operation of breed production. Therefore, the embodiment of the utility model provides an elevator safety power consumption alarm system to solve the insecure problem of the safety power consumption detection mechanism of current elevator.
Based on the above-mentioned purpose, the utility model provides an elevator safety electricity alarm system, include: the data monitoring circuit is provided with a residual current transformer which is used for measuring the leakage current of the elevator power supply loop; the control circuit is connected with the residual current transformer and is used for comparing the leakage current with a threshold value so as to output an alarm signal; the first alarm circuit is arranged on the power supply box of the elevator, is connected with the control circuit and is used for giving an alarm according to the alarm signal; a second alarm circuit disposed at a remote end; and a coil of the intermediate relay is connected with the first alarm circuit in series, and a normally open contact of the intermediate relay is connected with the second alarm circuit in series so as to realize the alarm action of the second alarm circuit.
In one embodiment, the control circuit comprises a comparator for comparing the residual current signal with a threshold value to output an alarm signal.
In one embodiment, the data monitoring circuit further comprises: the temperature sensor is used for measuring the temperature of a cable of an elevator power supply loop, and the control circuit is connected with the temperature sensor.
In one embodiment, the data monitoring circuit further comprises: the current transformer is used for measuring the current of the elevator power supply loop, and the control circuit is connected with the current transformer.
In one embodiment, the data monitoring circuit further comprises: the voltage transformer is used for measuring the voltage of the elevator power supply loop, and the control circuit is connected with the voltage transformer so as to obtain the voltage of the elevator power supply loop.
In one embodiment, the data monitoring circuit further comprises: the elevator power supply circuit comprises an electric energy meter, a control circuit and a power supply circuit, wherein the electric energy meter is used for measuring electric energy consumed by the elevator power supply circuit, and the control circuit is connected with the electric energy meter to obtain the electric energy.
In one embodiment, the first alarm circuit and/or the second alarm circuit comprises an audible and visual alarm.
In one embodiment, the elevator safety electricity utilization warning system further comprises a display circuit connected with the control circuit and used for displaying one or more of the temperature, the current, the voltage or the consumed electric energy of a cable of an elevator power supply loop.
In one embodiment, the elevator safety electricity usage alarm system further includes: and the transmission interface is connected with the control circuit and is used for connecting the control circuit with external terminal equipment in a wireless mode or a wired mode so as to upload the information acquired by the control circuit.
In one embodiment, the transmission interface includes one or more of bluetooth, WIFI, infrared, short wave, ethernet, and 485 network interfaces.
Compared with the prior art, the utility model the beneficial effect who exists is: the utility model discloses an elevator safety electricity alarm system utilizes residual current transformer monitoring elevator power supply loop's leakage current, utilizes control circuit to carry out the comparison to the leakage current size that the monitoring obtained to generate alarm signal when leakage current is greater than the default, alarm signal is used for controlling first alarm circuit and reports to the police, and first alarm circuit can also realize the linkage warning with second alarm circuit through auxiliary relay simultaneously. Therefore, the utility model discloses can carry out real-time supervision to the leakage current of elevator power supply loop to can in time report to the police when monitoring leakage current and being greater than the default, can help the site personnel in time to discover elevator leakage accident, shorten accident discovery time, help the quick solution of accident. Compared with the prior art, the utility model discloses an elevator safety electricity detection mechanism is more sound, can not appear the condition of elevator start-up with regard to the tripping operation, also can not appear the condition of elevator in service sudden tripping operation, more can do benefit to the safe orderly operation of ensureing the elevator.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic diagram schematically illustrating a typical elevator safety electricity warning system;
fig. 2 is a schematic view schematically showing an elevator safety electricity use alarm system according to an embodiment of the present invention;
fig. 3 is a schematic diagram schematically illustrating another elevator safety electricity utilization warning system according to an embodiment of the present invention;
fig. 4 is a schematic view schematically showing still another elevator safety electricity use alarm system according to an embodiment of the present invention;
in fig. 1 to 4, 101, a data monitoring circuit; 102. a residual current transformer; 103. a control circuit; 104. a first alarm circuit; 201. an intermediate relay; 202. a second alarm circuit; 301. A transmission interface; 401. a temperature sensor; 402. a current transformer; 403. a voltage transformer; 404. An electric energy meter.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
It should be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It should also be understood that the term "and/or" as used in the specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items and includes such combinations. Furthermore, in the description of the present invention and the appended claims, the terms "first," "second," "third," and the like are used for distinguishing between descriptions and not necessarily for describing or implying relative importance.
Reference throughout this specification to "one embodiment" or "some embodiments," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present invention. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless expressly specified otherwise.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
Fig. 1 is a schematic diagram schematically illustrating a typical elevator safety electricity warning system.
As shown in fig. 1, according to the utility model discloses a scheme, the elevator can be the commentaries on classics pig elevator of building pig house, also can be the elevator that is arranged in transporting other beasts and birds or goods in other application scenes. As shown in fig. 1, the elevator safety electricity use alarm system may include: a data monitoring circuit 101, a control circuit 103 and a first alarm circuit 104. The data monitoring circuit 101 in this embodiment is composed of a residual current transformer 102, and the residual current transformer 102 is used for measuring a leakage current of an elevator power supply loop. The control circuit 103 is connected with the residual current transformer 102, and the control circuit 103 is further connected with the first alarm circuit 104 so as to control the first alarm circuit 104 to perform an alarm operation.
In an application scenario, in the running process of the elevator, the residual current transformer 102 monitors the leakage current of the elevator power supply loop in real time and sends the monitored leakage current to the control circuit 103. The control circuit 103 compares the magnitude of the leakage current measured by the residual current transformer 102 with a threshold value, generates an alarm signal when the leakage current is greater than a preset value, and controls the first alarm circuit 104 to alarm by using the alarm signal, so that field personnel are reminded of the occurrence of the leakage accident of the elevator, the field personnel are helped to find stories in time, and corresponding measures are taken quickly. In this embodiment, an audible and visual alarm may be used as the first alarm circuit 104.
In some embodiments, a comparator may be included in the control circuit 103, which may be used to compare the residual current signal with a threshold value to output an alarm signal. Further, the control circuit 103 may also employ a commercially available electrical fire detector. When the model of the electrical fire detector is selected, the actual engineering conditions, such as the voltage and current of the installation place, the requirement on the communication mode, the requirement on the type of data to be monitored and the like, which all affect the determination of the model of the electrical fire detector, can be comprehensively considered. Further, instead of using a commercially available electrical fire detector as the control circuit 103, a dedicated control circuit may be developed and designed according to the function of the control circuit 103 in this embodiment.
In an application scenario, according to actual needs, a buzzer may be used as the first alarm circuit 104, or an indicator light may be used as the first alarm circuit 104.
The method realizes simple alarm of abnormal conditions in the elevator power supply loop. However, when the worker is far away from the power box, the alarm information may not be obtained in time. In order to realize dealing with the electric leakage accident more in time high-efficiently, the utility model discloses a scheme has been provided and has been linked the scheme of reporting to the police with the alarm circuit of different positions department, based on this, through improving aforementioned first alarm circuit in this scheme, realizes the linkage warning of different positions department in breeding the field. The following describes the solution of the present invention in detail with reference to fig. 2.
Fig. 2 is a schematic diagram schematically illustrating an elevator safety electricity alarm system according to an embodiment of the present invention.
As shown in fig. 2, the elevator safety electricity utilization alarm system includes: data monitoring circuit 101, control circuit 103, first alarm circuit 104, auxiliary relay 201 and second alarm circuit 202. The data monitoring circuit 101 may be composed of a residual current transformer 102, and the residual current transformer 102 is used for measuring a leakage current of the elevator power supply loop. The control circuit 103 may be connected to the residual current transformer 102, the control circuit 103 being further connected to a first alarm circuit 104. The coil of the intermediate relay 201 is connected in series with the first alarm circuit 104, and the normally open contact of the intermediate relay 201 is connected in series with the second alarm circuit 202. The first alarm circuit 104 is arranged on the elevator power supply box, and the second alarm circuit 202 is arranged on the outer wall of the room, so that the linkage alarm process of the first alarm circuit 104 and the second alarm circuit 202 is realized.
The working principle of the elevator safety electricity utilization alarm system of the embodiment is as follows: in the running process of the elevator, the residual current transformer 102 monitors the leakage current of the elevator power supply loop in real time and sends the monitored leakage current to the control circuit 103. The control circuit 103 analyzes the magnitude of the leakage current measured by the residual current transformer 102, and generates an alarm signal when the leakage current is greater than a preset value.
The control circuit 103 controls the first alarm circuit 104 to alarm by using the alarm signal, and meanwhile, as the first alarm circuit 104 is electrified to work, the coil of the intermediate relay 201 is electrified, and further the normally open contact of the intermediate relay 201 is closed, so that the second alarm circuit 202 also enters a working state. That is to say, this first warning circuit 104 and second warning circuit 202 are the linkage, and because first warning circuit 104 sets up on elevator power box, second warning circuit 202 sets up on the wall outside the room, in case two alarm module work, indoor, outdoor early warning simultaneously, can warn to indoor site personnel and outdoor site personnel simultaneously, increase the probability that site personnel found the accident, can deal with the electric leakage accident in time high-efficiently.
In some embodiments, an audible and visual alarm is employed as the second alarm circuit 202. The selection of the first alarm circuit 104 and the control circuit 103 may be in the manner described above, and will not be described herein again. In an application scenario, according to actual needs, a buzzer may be used as the second alarm circuit 202, or an indicator light may be used as the second alarm circuit 202.
Through the linkage arrangement of the second alarm circuit 202 and the first alarm circuit 104, the leakage current of the elevator power supply loop can be monitored in real time, and an alarm can be given in time when the leakage current is monitored to be larger than a preset value. And because first alarm circuit 104 and second alarm circuit 202 are the linkage, can realize indoor, outdoor early warning simultaneously, can warn to indoor site personnel and outdoor site personnel simultaneously, increase the probability that site personnel found the accident, can respond to the electric leakage accident more in time high-efficiently, reduce the paralytic possibility of elevator system, be favorable to guaranteeing the safe orderly operation of breed production, reduce economic loss. Further, the first alarm circuit 104 and the second alarm circuit 202 can complement the advantages of indoor alarm and outdoor alarm, and the alarm mechanism is more reliable. Additionally, according to the utility model discloses an alarm system that scheme was made, the design line is succinct, and low in manufacturing cost is favorable to popularizing and applying.
Fig. 3 is a schematic diagram schematically illustrating another elevator safety electricity utilization alarm system according to an embodiment of the present invention.
As shown in fig. 3, the elevator safety electricity utilization alarm system includes: the system comprises a data monitoring circuit 101, a control circuit 103, a first alarm circuit 104, an intermediate relay 201, a second alarm circuit 202 and a transmission interface 301, so that information interaction can be carried out with a server (cloud platform) through the transmission interface 301. The data monitoring circuit 101 in this embodiment is composed of a residual current transformer 102, and the residual current transformer 102 is used for measuring a leakage current of an elevator power supply loop. The control circuit 103 is connected with the residual current transformer 102, the control circuit 103 is further connected with the first alarm circuit 104, a coil of the intermediate relay 201 is connected with the first alarm circuit 104 in series, and a normally open contact of the intermediate relay 201 is connected with the second alarm circuit 202 in series. In operation, the first alarm circuit 104 may be disposed on an elevator power box and the second alarm circuit 202 may be disposed on an exterior wall of a room.
The transmission interface 301 may be connected to the control circuit 103, so that the control circuit 103 is connected to an external terminal device (e.g., a server/cloud platform) in a wireless manner or a wired manner, so as to upload information (leakage current, temperature information, etc.) acquired by the control circuit 103. This transmission interface 301 may include one or more of bluetooth, WIFI, infrared, short wave, ethernet and 485 network interfaces.
In some embodiments, during the operation of the elevator, the residual current transformer 102 monitors the leakage current of the elevator power supply loop in real time and sends the monitored leakage current to the control circuit 103. The control circuit 103 analyzes the magnitude of the leakage current measured by the residual current transformer 102, and generates an alarm signal when the leakage current is greater than a preset value.
When the control circuit 103 controls the first alarm circuit 104 to alarm by using the alarm signal, since the first alarm circuit 104 operates, the coil of the intermediate relay 201 is energized, and the normally open contact of the intermediate relay 201 is closed, so that the second alarm circuit 202 also enters an operating state. That is, the first alarm circuit 104 and the second alarm circuit 202 of the present embodiment are linked, and since the first alarm circuit 104 is disposed on the elevator power box and the second alarm circuit 202 is disposed on the wall outside the room, once the two alarm modules work, the indoor and outdoor early alarms can be performed simultaneously, and the alarm can be provided to the indoor field personnel and the outdoor field personnel simultaneously. For the selection of the first alarm circuit 104, the second alarm circuit 202 and the control circuit 103, reference is made to the above description, and details will not be described here.
In addition, because the control circuit 103 of this embodiment can also communicate with the server (cloud platform) through the transmission interface 301, the control circuit 103 can also send the alarm signal and the relevant data of the leakage current to the cloud platform, and the cloud platform sends an alarm short message to the relevant staff or dials an alarm call to inform the staff to remotely handle the elevator leakage accident.
Through increasing transmission interface 301, can realize sending alarm signal to cloud platform, when realizing indoor, outdoor linkage early warning, can also realize long-range early warning. Indoor warning, outdoor warning, warning cloud platform, the multiform is reported to the police complementally, and alarm system does not have the leak, and alarm system is safe and reliable more and the practicality is stronger.
Fig. 4 is a schematic diagram schematically illustrating still another elevator safety electricity utilization alarm system according to an embodiment of the present invention.
As shown in fig. 4, the elevator safety electricity utilization alarm system includes: the data monitoring circuit 101, the control circuit 103, the first alarm circuit 104, the intermediate relay 201, the second alarm circuit 202 and the transmission interface 301.
The data monitoring circuit 101 may be composed of a residual current transformer 102, a temperature sensor 401, a current transformer 402, a voltage transformer 403 and an electric energy meter 404. The residual current transformer 102 is used for measuring leakage current of an elevator power supply loop, the temperature sensor 401 is used for measuring cable temperature of the elevator power supply loop, the current transformer 402 is used for measuring current of the elevator power supply loop, the voltage transformer 403 is used for measuring voltage of the elevator power supply loop, and the electric energy meter 404 is used for measuring electric energy consumed by the elevator power supply loop. The control circuit 103 is respectively connected with the residual current transformer 102, the temperature sensor 401, the current transformer 402, the voltage transformer 403 and the electric energy meter 404. The control circuit 103 can also control the first alarm circuit 104 to alarm, a coil of the intermediate relay 201 is connected with the first alarm circuit 104 in series, a normally open contact of the intermediate relay 201 is connected with the second alarm circuit 202 in series, the first alarm circuit 104 is arranged on an elevator power supply box, and the second alarm circuit 202 is arranged on the outer wall of the room. Further, the control circuit 103 is also connected to the cloud platform through the transmission interface 301.
In the running process of the elevator, the residual current transformer 102 monitors the leakage current of the elevator power supply loop in real time and sends the monitored leakage current to the control circuit 103. The temperature sensor 401 monitors the cable temperature of the elevator power supply loop in real time and sends the monitored cable temperature to the control circuit 103. The current transformer 402 monitors the current of the elevator power supply loop in real time and sends the monitored current of the elevator power supply loop to the control circuit 103. The voltage transformer 403 monitors the voltage of the elevator power supply loop in real time and sends the monitored voltage of the elevator power supply loop to the control circuit 103. The electric energy meter 404 monitors the electric energy consumed by the elevator power supply circuit in real time and transmits the monitored electric energy consumed by the elevator power supply circuit to the control circuit 103.
The control circuit 103 analyzes the data measured by the data monitoring circuit 101, judges whether the elevator power supply loop has faults of electric leakage, high temperature, overcurrent, overvoltage, undervoltage, poor power quality and the like, and generates an alarm signal when one or more of the faults occur. It should be noted that, the control circuit 103 is the prior art according to the manner of detecting signals such as leakage current, temperature, loop current, voltage, and electric energy, and determining faults such as leakage, high temperature, overcurrent, overvoltage, undervoltage, and poor electric energy quality based on these signals, and the key point of this scheme is to provide this hardware structure, and the manner of implementing fault determination is not limited.
The control circuit 103 controls the first alarm circuit 104 to give an alarm by using an alarm signal, and meanwhile, as the first alarm circuit 104 works, the coil of the intermediate relay 201 is electrified, and the normally open contact of the intermediate relay 201 is closed, so that the second alarm circuit 202 also enters a working state, the two alarm modules work simultaneously, and the indoor and outdoor early alarms simultaneously. Meanwhile, the control circuit 103 also sends the alarm signal, the fault type and the relevant data measured by the data monitoring circuit 101 to the cloud platform, and the cloud platform sends an alarm short message to relevant workers or dials an alarm call to inform the relevant workers to remotely process the fault.
In summary, the data monitoring circuit 101 in this embodiment is composed of 5 measuring devices, i.e., the residual current transformer 102, the temperature sensor 401, the current transformer 402, the voltage transformer 403, and the electric energy meter 404, and the control circuit 103 can analyze data measured by the 5 measuring devices, determine whether the power supply loop of the elevator has faults, such as electric leakage, high temperature, overcurrent, overvoltage, undervoltage, poor electric energy quality, and the like, and generate an alarm signal when one or more of the faults occur.
In another example, according to actual requirements, the measuring devices in the data monitoring circuit 101 may be one or more of the above 5 measuring devices, and the control circuit 103 may process corresponding monitoring data to generate an alarm signal. Furthermore, a corresponding display circuit can be arranged and connected with the control circuit so as to display one or more of the temperature, the current, the voltage or the consumed electric energy of the cable of the elevator power supply loop.
Through the mode, the data monitoring circuit 101 can be composed of 5 measuring devices, namely the residual current transformer 102, the temperature sensor 401, the current transformer 402, the voltage transformer 403 and the electric energy meter 404, the control circuit 103 can analyze data measured by the 5 measuring devices, judge whether the elevator power supply loop has faults of electric leakage, high temperature, overcurrent, overvoltage, undervoltage, poor electric energy quality and the like, and generate alarm signals when one or more of the faults occur, so that more fault types can be pre-warned, the method is more reliable, and the elevator power utilization safety can be guaranteed to the maximum extent.
To sum up, this elevator safety power consumption alarm system can the fault type of early warning more, and the alarm form is more various, and alarm system is safe and reliable more, can furthest guarantee personnel's safety and plant property safety, avoids the alarm problem to handle untimely emergence great property loss.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (10)
1. An elevator safety electricity utilization alarm system is characterized by comprising:
the data monitoring circuit is provided with a residual current transformer which is used for measuring the leakage current of the elevator power supply loop;
the control circuit is connected with the residual current transformer and is used for comparing the leakage current with a threshold value so as to output an alarm signal;
the first alarm circuit is arranged on the elevator power supply box, is connected with the control circuit and is used for giving an alarm according to the alarm signal;
a second alarm circuit disposed at a remote end; and
and a coil of the intermediate relay is connected with the first alarm circuit in series, and a normally open contact of the intermediate relay is connected with the second alarm circuit in series so as to realize the alarm action of the second alarm circuit.
2. The elevator safety electricity utilization warning system according to claim 1, wherein the control circuit includes a comparator for comparing the leakage current with a threshold value to output a warning signal.
3. The elevator safety electricity utilization alarm system according to claim 2, wherein the data monitoring circuit further comprises:
the temperature sensor is used for measuring the temperature of a cable of an elevator power supply loop, and the control circuit is connected with the temperature sensor.
4. The elevator safety electricity utilization alarm system according to claim 3, wherein the data monitoring circuit further comprises:
the current transformer is used for measuring the current of the elevator power supply loop, and the control circuit is connected with the current transformer.
5. The elevator safety power utilization warning system of claim 3, wherein the data monitoring circuit further comprises:
the voltage transformer is used for measuring the voltage of the elevator power supply loop, and the control circuit is connected with the voltage transformer so as to obtain the voltage of the elevator power supply loop.
6. The elevator safety power utilization warning system of claim 3, wherein the data monitoring circuit further comprises:
the elevator power supply circuit comprises an electric energy meter, a control circuit and a power supply circuit, wherein the electric energy meter is used for measuring electric energy consumed by the elevator power supply circuit, and the control circuit is connected with the electric energy meter to obtain the electric energy.
7. The elevator safety electricity utilization warning system of claim 2, wherein the first warning circuit and/or the second warning circuit comprises an audible and visual alarm.
8. The elevator safety electricity utilization warning system of claim 3 or 4 or 5 or 6, characterized in that the elevator safety electricity utilization warning system further comprises a display circuit connected with the control circuit for displaying one or more of cable temperature, current, voltage or consumed electric energy of the elevator power supply circuit.
9. The elevator safety electricity utilization warning system of claim 1, further comprising:
and the transmission interface is connected with the control circuit and is used for connecting the control circuit with external terminal equipment in a wireless mode or a wired mode so as to upload the information acquired by the control circuit.
10. The elevator safety power utilization alarm system of claim 9, wherein the transmission interface comprises one or more of bluetooth, WIFI, infrared, short wave, ethernet and 485 network interfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221004145.5U CN218708376U (en) | 2022-04-25 | 2022-04-25 | Elevator safety power utilization alarm system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221004145.5U CN218708376U (en) | 2022-04-25 | 2022-04-25 | Elevator safety power utilization alarm system |
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| CN218708376U true CN218708376U (en) | 2023-03-24 |
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| CN202221004145.5U Active CN218708376U (en) | 2022-04-25 | 2022-04-25 | Elevator safety power utilization alarm system |
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