Electrical fire monitoring equipment

Abstract

Electrical fire monitoring equipment comprises a monitoring terminal, the output end of the monitoring terminal is connected to the input end of a display terminal, the monitoring terminal comprises a plurality of input ends, and the plurality of input ends of the monitoring terminal can be respectively connected with one or more of a temperature type detector, a combined type detector and a current type detector; the temperature type detector comprises a plurality of temperature input terminals; the combined detector at least comprises a temperature input terminal and a leakage current input terminal. The galvanic detector includes a plurality of leakage current input terminals. Wherein the combined detector adopts the same monitoring mode as that adopted in the prior art, but the temperature type detector and the current type detector are different from the existing structure, so that current or temperature monitoring can be simultaneously carried out in multiple application scenes according to requirements, and temperature and current monitoring can also be simultaneously carried out, and therefore, selective installation can be conveniently carried out according to requirements, and the cost is reduced. And the applicability is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of safe electricity monitoring equipment, in particular to electrical fire monitoring equipment. Background Art

[0002] Line overload and leakage problems that are prone to cause electrical fires can be detected at the first time by setting a monitoring method of a mutual inductor. The above monitoring method can alarm at the first time of a fire, thereby effectively preventing the spread of the fire. The temperature rise accompanying the fire can also be monitored by a temperature sensor, which can also alarm at the first time. Furthermore, by setting the above structure to monitor the corresponding position according to the needs, the fire warning can be completed;

[0003] As shown in an electrical fire monitoring and early warning system with application number CN202223014600.2, it is capable of monitoring and early warning electrical fires by setting up a fire monitoring host, a leakage current transformer, a phase current transformer and a temperature sensor. However, the method adopted by the above structure is that once the fire monitoring host is set up, the wiring ports for connecting the leakage current transformer, the phase current transformer and the temperature sensor are reserved by default, that is, the temperature and current are monitored simultaneously by default. However, in terms of actual application scenarios, the monitoring of temperature and current can be completely customized and does not need to be set at the same time. Therefore, the above system lacks certain applicability adjustments. Utility Model Content

[0004] In order to solve the problem that the above-mentioned existing electrical early warning systems generally have both temperature and current monitoring structures set up simultaneously, the utility model provides an electrical fire monitoring device.

[0005] The technical solution of this utility model is as follows:

[0006] An electrical fire monitoring device comprises a monitoring terminal, wherein an output end of the monitoring terminal is connected to an input end of a display terminal, the monitoring terminal comprises a plurality of input ends, and the plurality of input ends of the monitoring terminal can be respectively connected to one or more of a temperature detector, a combination detector and a current detector;

[0007] The temperature detector includes a plurality of temperature input terminals;

[0008] The combined detector comprises at least one temperature input terminal and a leakage current input terminal;

[0009] The current detector includes a plurality of leakage current input terminals.

[0010] Different from the existing methods, the corresponding equipment can be selected according to the needs, and a single device can monitor current or temperature at multiple locations at the same time, and can also monitor temperature and current at the same time. Therefore, it is easy to select according to needs and has stronger applicability.

[0011] The communication is realized in that the temperature detector, the combined detector and the current detector are all provided with RS485 communication terminals.

[0012] For the convenience of control, the temperature detector, the combined detector and the current detector are all provided with relay output terminals and connected to the relay.

[0013] As a preferred solution, the temperature detector, combined detector and current detector are all independently powered.

[0014] The temperature monitoring is achieved by connecting the temperature input terminal of the temperature detector to a PT100 temperature sensor.

[0015] The method of simultaneously monitoring temperature and current is that the temperature input terminal of the combined detector is connected to the PT100 temperature sensor, and the leakage current input terminal is connected to the mutual inductor, and the mutual inductor is passed through multiple phase lines. This is equivalent to the method mentioned in the prior art, and it is necessary to monitor temperature and current simultaneously.

[0016] The current monitoring is achieved in that the leakage current input terminal of the current detector is connected to a transformer, and a plurality of transformers are passed through by a plurality of phase lines connected to different loads.

[0017] As a preferred solution, the mutual inductor is connected to the corresponding phase line to obtain power by induction.

[0018] In order to avoid problems with the monitoring results, the phase lines monitored by multiple transformers connected to a single current detector are connected to the same power supply cabinet.

[0019] The alarm is realized by having a built-in alarm module in the monitoring terminal, and the alarm module is capable of sound and light alarm.

[0020] The beneficial effect of the utility model is that the utility model is an electrical fire monitoring device, and the combined detector in the device has the same detection method as the existing device, and can monitor the current and temperature at the same time. However, in some cases, the application scenario can only monitor the temperature or current. Once the above device is used, it will cause a waste of wiring ports. Different from this, the temperature detector and current detector of the device can independently monitor the temperature or current of multiple application scenarios at the same time, thereby avoiding the waste of wiring ports. Therefore, the above three detectors can be freely combined and selected according to needs, which is more adaptable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] By reading the detailed description of the preferred embodiment below, the scheme and advantages of the present application will become clear to those skilled in the art. The accompanying drawings are only used to illustrate the preferred embodiment and are not considered to be limiting of the present invention.

[0022] In the attached picture:

[0023] Figure 1 This is a schematic diagram of the system structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the wiring terminal structure of the current detector of the utility model;

[0025] Figure 3 This is a schematic diagram of the wiring terminal structure of the combined detector of the utility model;

[0026] Figure 4 This is a schematic diagram of the wiring terminal structure of the temperature detector of the utility model;

[0027] The components represented by the reference numerals in the figure are:

[0028] 1. Display terminal; 2. Monitoring terminal; 3. Temperature detector; 4. Combined detector; 5. Current detector; 6. Transformer; 7. Power supply cabinet; 8. Load. DETAILED DESCRIPTION

[0029] like Figure 1 An electrical fire monitoring device includes a monitoring terminal 2, wherein the monitoring terminal 2 needs to be provided with a display screen and buttons, and can adopt an existing structure, the purpose is to allow staff to operate and obtain information, so that the staff can understand the actual situation, and the output end of the monitoring terminal 2 is connected to the input end of the display terminal 1, which also needs to be provided with a display screen for easy observation, and the above two structures are commonly used terminals for conventional fire monitoring, so they are not repeated here. It should be noted that the monitoring terminal 2 includes multiple input ends, so multiple detectors can be connected at the same time, and the corresponding detectors can be selected and connected according to actual needs.

[0030] like Figure 1As shown, the multiple input terminals of the monitoring terminal 2 can be connected to one or more of the temperature detector 3, the combination detector 4 and the current detector 5 respectively. That is to say, after determining the needs, the monitoring terminal 2 of the present device can be connected to multiple temperature detectors 3 at the same time for temperature monitoring only, or can be connected to multiple current detectors 5 at the same time for current monitoring only, or can be connected to the combination detector 4 as in the prior art to monitor temperature and current at the same time. It can be seen from the above description that the present device can be used in the same way as that used in the prior art, or can be used in a way different from that used in the prior art. Therefore, it has a high degree of freedom and can be suitable for various application scenarios.

[0031] First, if Figure 4 As shown, with regard to the temperature detector 3, the temperature detector 3 includes a plurality of temperature input terminals, and the method for implementing temperature monitoring is that the temperature input terminal of the temperature detector 3 is connected to a PT100 temperature sensor, and after the PT100 temperature sensor is set at a corresponding position, the temperature of the current position can be monitored, and since a plurality of PT100 temperature sensors are set, a plurality of positions can be monitored at the same time, or different positions of the same device can be monitored, and the above structure does not waste wiring ports because it does not set leakage current wiring ports.

[0032] Afterwards, if Figure 3 As shown, the combined detector 4 includes at least one temperature input terminal and a leakage current input terminal; the method used in the existing structure is the same, and the method of simultaneously monitoring temperature and current is that the temperature input terminal of the combined detector 4 is connected to the PT100 temperature sensor, and the leakage current input terminal is connected to the mutual inductor 6, and the mutual inductor 6 is passed through by multiple phase lines. Equivalent to the method mentioned in the prior art, it is necessary to monitor the temperature and current at the same time. And after setting a plurality of the above-mentioned combined detectors 4, it can be used like the prior art, and can monitor current and temperature at the same time. The disadvantage is that when it only needs to monitor any one of the temperature or current, it will cause some ports to be unable to be used.

[0033] Finally, if Figure 2 As shown, the current detector 5 includes a plurality of leakage current input terminals. The current monitoring is achieved by connecting the leakage current input terminal of the current detector 5 to a mutual inductor 6, and the plurality of mutual inductors 6 are passed through by a plurality of phase lines connected to different loads 8. In some cases, a single power supply cabinet 7 may be connected to a plurality of loads at the same time, some of which require temperature and current monitoring, and some of which require only current monitoring. Therefore, the current detector 5 mentioned in the present device can monitor a plurality of loads, and only one detector is needed, without setting up a plurality of detectors.

[0034] It should be noted that the mutual inductor 6 is connected to the corresponding phase line to obtain power by induction, which is more convenient and does not require an additional power supply unit.

[0035] It should be noted that, in order to avoid problems with the monitoring results, the phase lines monitored by the multiple transformers 6 connected to the single current detector 5 are connected to the same power supply cabinet 7. If the loads are connected to different power supply cabinets 7, it is impossible to use one detector to monitor multiple loads at the same time.

[0036] The above structure can be used to realize that, different from the existing method, the corresponding equipment can be selected according to the needs, and a single device can monitor current or temperature at multiple locations at the same time, and can also monitor temperature and current at the same time. Therefore, it is easy to select according to needs and has stronger applicability.

[0037] In the above structure, the communication is realized in that the temperature detector 3, the combined detector 4 and the current detector 5 are all provided with RS485 communication terminals.

[0038] Afterwards, in order to facilitate control, the temperature detector 3, the combined detector 4 and the current detector 5 are all provided with relay output terminals and connected to the relays.

[0039] In order to avoid power failure due to fire, the temperature detector 3, the combined detector 4 and the current detector 5 are all powered independently, which is safer and can avoid the phenomenon of power failure and failure to alarm.

[0040] Finally, the alarm is realized in that the monitoring terminal 2 has a built-in alarm module, and the alarm module can generate sound and light alarms.

Claims

1. An electrical fire monitoring device, comprising a monitoring terminal (2), wherein the output end of the monitoring terminal (2) is connected to the input end of a display terminal (1), characterized in that: The monitoring terminal (2) comprises a plurality of input terminals, and the plurality of input terminals of the monitoring terminal (2) can be respectively connected to one or more of the temperature detector (3), the combined detector (4) and the current detector (5); The temperature detector (3) comprises a plurality of temperature input terminals; The combined detector (4) comprises at least one temperature input terminal and a leakage current input terminal; The current detector (5) comprises a plurality of leakage current input terminals; The leakage current input terminal of the current detector (5) is connected to a mutual inductor (6), and a plurality of mutual inductors (6) are passed through by a plurality of phase lines connected to different loads (8); The phase lines monitored by the multiple transformers (6) connected to a single current detector (5) are connected to the same power supply cabinet (7). If the loads are connected to different power supply cabinets (7), it is impossible to use one detector to monitor multiple loads (8) at the same time.

2. An electrical fire monitoring device according to claim 1, characterized in that: The temperature detector (3), the combined detector (4) and the current detector (5) are all provided with RS485 communication terminals.

3. An electrical fire monitoring device according to claim 1, characterized in that: The temperature detector (3), the combined detector (4) and the current detector (5) are all provided with relay output terminals and connected to the relay.

4. An electrical fire monitoring device according to claim 1, characterized in that: The temperature detector (3), the combined detector (4) and the current detector (5) are all independently powered.

5. The electrical fire monitoring device according to claim 1, characterized in that: The temperature input terminal of the temperature detector (3) is connected to a PT100 temperature sensor.

6. The electrical fire monitoring device according to claim 1, characterized in that: The temperature input terminal of the combined detector (4) is connected to a PT100 temperature sensor, and the leakage current input terminal is connected to a mutual inductor (6), and the mutual inductor (6) is passed through by a plurality of phase lines.

7. An electrical fire monitoring device according to claim 6, characterized in that: The mutual inductor (6) is connected to the corresponding phase line to obtain power by induction.

8. The electrical fire monitoring device according to claim 1, characterized in that: The monitoring terminal (2) has a built-in alarm module, and the alarm module is capable of sound and light alarms.

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