Wireless intelligent combination electric fire detector

Abstract

The application provides a wireless intelligent combined electric fire detector, characterized in that: a motor is installed in the main switch shell, the output shaft of the motor is connected with and drives the main switch; the circuit on the arc fault detection plate sends signals to the Bluetooth module; the Bluetooth module in the main switch shell controls the motor; a plurality of branch switch shells are installed in the detector shell, the Bluetooth module in the branch switch shell controls the motor of the branch switch shell; the Bluetooth module in the main switch shell and the Bluetooth module in each branch switch shell transmit signals to each other in the Bluetooth mode; external wires are connected to the branch switch; the live wire and the zero wire connected to the main switch are connected to the residual current transformer; the wires connected to the main switch are connected to the branch switch; the wires connected to the branch switch are connected to the circuit of the arc fault detection plate after passing through the residual current transformer. The application can actively trip when detecting the arc fault, send an alarm signal, and improve the monitoring and fire-fighting efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of fire-fighting equipment, in particular to a wireless intelligent combined electrical fire detector. BACKGROUND

[0002] The residual current transformer is a detection element of the leakage protector, and its main function is to detect the residual current (electric shock, leakage, etc. ground fault current) of the main circuit passing through the transformer core. Although the current can detect the fault arc that may cause a fire, the fire-fighting system is not fast enough. Effective monitoring and prevention of electrical fires to protect personal and property safety. SUMMARY

[0003] The present application provides a wireless intelligent combined electrical fire detector, which aims to solve the shortcomings of the prior art, so that when a fault arc is detected, the power supply can be actively tripped for precise and timely power failure, and an alarm signal can be sent to improve monitoring and fire-fighting efficiency.

[0004] The technical scheme adopted by the present application to solve its technical problems is:

[0005] A wireless intelligent combined electrical fire detector, characterized in that:

[0006] The detector housing has a detector housing;

[0007] The total switch housing is installed in the detector housing;

[0008] The total switch housing is installed in the detector housing;

[0009] The total switch housing is also installed with a fault arc detection board and a wireless communication gateway board, and the wireless communication gateway board is installed with a Bluetooth module, and the circuit on the fault arc detection board is connected with the Bluetooth module and sends a signal to the Bluetooth module;

[0010] The Bluetooth module in the total switch housing controls the motor of the total switch housing;

[0011] The detector housing is also installed with a plurality of total switch housings, and the total switch housing is installed with a total switch, and the total switch housing is installed with a motor, and the output shaft of the motor is connected and drives the total switch;

[0012] The total switch housing is also installed with a wireless communication gateway board, and the wireless communication gateway board is installed with a Bluetooth module, and the circuit on the fault arc detection board is connected with the Bluetooth module and sends a signal to the Bluetooth module;

[0013] The Bluetooth module in the total switch housing controls the motor of the total switch housing;

[0014] Bluetooth module in the main switch shell and Bluetooth module in each branch switch shell transmit signals to each other in Bluetooth mode;

[0015] A residual current transformer is also installed in the detector shell;

[0016] External power lines are connected to the branch switch;

[0017] The live wire and the neutral wire connected to the residual current transformer are connected to the branch switch;

[0018] The power lines connected to the main switch are connected to the branch switch;

[0019] The power lines connected to the branch switch are connected to the circuit of the arc fault detection board after passing through the residual current transformer.

[0020] A 4G module is installed on the wireless communication gateway board of the main switch shell, and the circuit of the arc fault detection board is connected to the 4G module and sends signals to the 4G module.

[0021] The 4G module is connected to the antenna installed outside the detector shell.

[0022] A worm is installed on the output shaft of the motor, the worm is engaged with the input gear of a gear transmission set, the output gear of the gear transmission set is engaged with the sector gear of a driving member, and the driving member is connected and drives the main switch.

[0023] A square hole is formed in the center of the shaft of the driving member, and the main switch extends a square rod inserted into the square hole.

[0024] When the power line connected to the branch switch has a possible fault arc that may cause a fire, the power line connected to the branch switch after passing through the residual current transformer will make the residual current transformer detect the signal, the signal is sent to the arc fault detection board, and the arc fault detection board compares and obtains the specific fault arc of the power line connected to the branch switch and the intensity of the fault arc;

[0025] If the intensity of the fault arc is greater than the set value, the arc fault detection board will send a control signal to the Bluetooth module on the wireless communication gateway board, the Bluetooth module will control the motor to start, and the output shaft of the motor will drive the main switch to rotate and close, and all circuits will be cut off;

[0026] If the fault arc intensity is less than the set value, the fault arc detection plate sends a control signal to the Bluetooth module on the wireless communication gateway board, the Bluetooth module sends the signal to the corresponding wireless communication gateway board in the split switch shell through Bluetooth, the Bluetooth module in the split switch shell controls the motor to start, the motor output shaft drives the split switch to rotate and close, and the circuit of the branch is cut off. The fault arc detection plate compares and obtains the specific fault arc of the power line connected to the split switch, and sends the fault arc intensity signal of the branch with the fault arc to the 4G module on the wireless communication gateway board. The 4G module sends a fire-fighting signal to the nearby fire-fighting facilities and the general control room for automatic or manual handling of the dangerous situation.

[0027] The present application has the advantages of:

[0028] The present application can timely discover the possible fault arc (including parallel arc and series arc) or other hazards that may cause fire through real-time wireless monitoring and management of the power distribution circuit by the residual current transformer, and immediately performs a mechanical active tripping operation on the gate, can timely send an alarm signal to the monitoring platform or the mobile phone client, effectively monitors and prevents the occurrence of electrical fire, and thus guarantees personal and property safety. BRIEF DESCRIPTION OF DRAWINGS

[0029] The present application will be further described below in combination with the drawings and examples.

[0030] Figure 1 Fig. 1 is a perspective view of the present application;

[0031] Figure 2 Fig. 2 is an enlarged view of A of Fig. 1; Figure 1

[0032] Figure 3 Fig. 3 is a perspective view of the present application;

[0033] Figure 4 Fig. 4 is a wiring diagram of the gate switch and the residual current transformer from one perspective of the present application;

[0034] Figure 5 Fig. 5 is a wiring diagram of the gate switch and the residual current transformer from another perspective of the present application;

[0035] Figure 6 Fig. 6 is a schematic view of the appearance of the present application. DETAILED DESCRIPTION

[0036] ​In order to more clearly illustrate the technical solutions of the present application, the drawings required to be used in the description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other embodiments can be obtained by those skilled in the art without any creative effort on the basis of these drawings. In order to facilitate the understanding of the present application, the present application will be described in more detail in combination with the drawings and specific embodiments.

[0037] It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or one or more intermediate elements can be present therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements can be present therebetween. The terms "upper", "lower", "inner", "outer", "bottom", etc. used in the specification indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only for the purpose of description and cannot be understood as indicating or implying relative importance.

[0038] As shown in Figure 1 , Figure 2 , Figure 3 :

[0039] The detector housing 1 is provided with a total switch housing 2.

[0040] The total switch housing 2 is composed of a side plate 21, an intermediate housing 22 and a main housing 23. The total switch housing 2 is installed in the detector housing 1.

[0041] A motor 3 is installed in the total switch housing 2. A worm 4 is installed on the output shaft of the motor 3. The worm 4 is engaged with an input gear 51 of a gear transmission set 5. An output gear 52 of the gear transmission set 5 is engaged with a sector tooth of a driving member 53. A square hole 54 is formed in the center of the shaft of the driving member 53. A total switch 6 extends a square rod 61 which is inserted into the square hole 54.

[0042] A fault arc detection plate 7 and a wireless communication gateway plate 8 are also installed in the total switch housing 2. A 4G module and a Bluetooth module are installed on the wireless communication gateway plate 8.

[0043] The 4G module is connected with an antenna 11 installed outside the detector housing 2 through an intermediate connecting line 10.

[0044] The circuit on the fault arc detection plate 7 is connected with the 4G module and the Bluetooth module respectively, and sends signals to the 4G module and the Bluetooth module.

[0045] The Bluetooth module is connected with the motor 3 and sends control signals to the motor 3 to control the motor 3.

[0046] The circuit can be designed according to the prior art.

[0047] A plurality of disconnecting switch housings 9 are also installed in the detector housing 1, and a disconnecting switch 91 is installed in each of the disconnecting switch housings 9.

[0048] A motor is installed in each of the disconnecting switch housings 9, a worm is installed on an output shaft of the motor, the worm is engaged with an input gear of a gear transmission set, an output gear of the gear transmission set is engaged with a sector tooth of a driving member, a square hole is formed in a center of a shaft of the driving member, a square rod of the disconnecting switch 91 is inserted into the square hole, a wireless communication gateway board is installed in the disconnecting switch housing 9, and a Bluetooth module is installed on the wireless communication gateway board. The Bluetooth module is connected with the motor and sends control signals to the motor 3 to control the motor 3. The structure in this section is the same as the corresponding structure in the main disconnecting switch.

[0049] A residual current transformer 12 is also installed in the detector housing 1.

[0050] The Bluetooth module in the main disconnecting switch housing 2 and the Bluetooth modules in the disconnecting switch housings communicate with each other in a Bluetooth mode.

[0051] As shown in Figure 4 , Figure 5 ,

[0052] According to the prior art, the external wires B are connected to the disconnecting switch 91.

[0053] There are three disconnecting switches 91, i.e. three groups of external wires B, and each group has two wires connected from three branches.

[0054] The live wire C and the zero wire D connected from the main disconnecting switch 6 are connected to the residual current transformer 12.

[0055] The wire E connected from the main disconnecting switch 6 is connected to the disconnecting switch 91.

[0056] The wire F connected from the disconnecting switch 91 is connected to the circuit of the fault arc detection board 7 after passing through the residual current transformer 12.

[0057] Finally, the fault arc detector as described in Figure 6 is formed.

[0058] In actual operation:

[0059] Under normal circumstances, the main disconnecting switch 6 and the disconnecting switch 91 are always open.

[0060] When a possible fire-causing fault arc (including parallel arc and series arc) or other hazards occurs in the electric wire B connected to the disconnector switch 91, the electric wire F passing through the residual current transformer after the disconnector switch 91 is disconnected will make the residual current transformer 12 detect the signal. Since the current waveform in each electric wire connected to the disconnector switch 91 is different, the signal detected by the residual current transformer 12 is also different. The signal is sent to the circuit of the fault arc detection board 7. The circuit of the fault arc detection board 7 compares and determines which electric wire B (i.e. which branch) connected to the disconnector switch 91 has the possible fire-causing fault arc, and the intensity of the fault arc. The branch with the fault arc and the intensity signal of the fault arc are sent to the 4G module on the wireless communication gateway board 8. The 4G module sends a fire-fighting signal to the nearby fire-fighting facilities, the main control room, etc. through the antenna 11, and the danger is automatically or manually handled.

[0061] If the intensity of the fault arc is greater than the set value, which means high danger, the fault arc detection board 7 sends a control signal to the Bluetooth module on the wireless communication gateway board 8. The Bluetooth module controls the motor 3 to start. The output shaft of the motor drives the worm 4 to rotate. The worm 4 drives the input gear 51 of the gear transmission set 5 to rotate. The gear transmission set 5 drives the output gear 52 of the gear transmission set 5 to rotate. The output gear 52 drives the driving member 53 to rotate. The driving member 53 drives the square rod 61 matched with the square hole 54 to rotate. Finally, the main disconnector switch 6 is rotated to be closed, and all circuits are cut off, so as to actively mechanically cut off the power to avoid the danger from expanding.

[0062] If the fault arc intensity is less than the set value, indicating low risk, the fault arc detection plate 7 sends a control signal to the Bluetooth module on the wireless communication gateway board 8, which sends the signal to the corresponding Bluetooth module on the wireless communication gateway board in the disconnecting switch housing 9. The Bluetooth module in the disconnecting switch housing 9 controls the motor to start, and the motor output shaft drives the worm to rotate. The worm drives the input gear of the gear transmission set to rotate, and the gear transmission set drives the output gear of the gear transmission set to rotate. The output gear drives the driving member to rotate, and the driving member drives the square rod that fits with the square hole to rotate, finally making the disconnecting switch 91 rotate and close, cutting off the circuit of the branch, thus actively mechanically disconnecting the power to avoid the risk of expanding, and not affecting other branches. In the present specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between each embodiment can be referred to each other. The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wireless intelligent combined electrical fire detector, characterized in that: It has a detector housing; The main switch housing is installed inside the detector housing; a motor is installed inside the main switch housing, and the motor's output shaft is connected to and drives the main switch. The main switch housing also houses a fault arc detection board and a wireless communication gateway board. The wireless communication gateway board has a Bluetooth module installed, and the circuitry on the fault arc detection board connects to the Bluetooth module and sends signals to it. The Bluetooth module inside the main switch housing controls the motor of the main switch housing. Several branch switch housings are also installed inside the detector housing. Each branch switch housing contains a branch switch and a motor, the output shaft of which connects to and drives the branch switch. A wireless communication gateway board is also installed inside the branch switch housing, with a Bluetooth module installed on it. The circuitry on the fault arc detection board connects to the Bluetooth module and sends signals to it. The Bluetooth module inside the branch switch housing controls the motor of the branch switch housing. The Bluetooth module in the main switch housing and the Bluetooth modules in each branch switch housing exchange signals via Bluetooth. A residual current transformer is also installed inside the detector housing. External wires are connected to the branch switches. The live and neutral wires from the main switch are connected to the residual current transformer. Wires from the main switch are connected to the branch switches. The wires from the trip switch pass through the residual current transformer and are then connected to the circuit of the fault arc detection board. When a fault arc that could cause a fire occurs in the wire connected to the breaker, the wire that passes through the residual current transformer after the breaker is connected will cause the residual current transformer to detect the signal. The signal is sent to the fault arc detection board, which compares the signal to determine the specific wire connected to the breaker that has a fault arc and the intensity of the fault arc. If the intensity of the fault arc is greater than the set value, the fault arc detection board will send a control signal to the Bluetooth module on the wireless communication gateway board. The Bluetooth module controls the motor to start, and the motor output shaft drives the main switch to turn and close, cutting off all circuits. If the arc intensity of the fault is less than the set value, the fault arc detection board will send a control signal to the Bluetooth module on the wireless communication gateway board. The Bluetooth module will then send the signal to the Bluetooth module on the wireless communication gateway board inside the corresponding trip switch housing via Bluetooth. The Bluetooth module inside the trip switch housing will control the motor to start, and the motor output shaft will drive the trip switch to rotate and close, thus cutting off the circuit of that branch.

2. The wireless intelligent combined electrical fire detector as described in claim 1, characterized in that: A 4G module is installed on the wireless communication gateway board of the main switch housing. The circuit on the fault arc detection board is connected to the 4G module and sends signals to the 4G module.

3. The wireless intelligent combined electrical fire detector as described in claim 2, characterized in that: The 4G module is connected to an antenna mounted outside the detector housing.

4. The wireless intelligent combined electrical fire detector as described in claim 1, characterized in that: A worm gear is mounted on the output shaft of the motor. The worm gear meshes with the input gear of a gear transmission set. The output gear of the gear transmission set meshes with the sector teeth of a driving element. The driving element is connected to and drives the main switch.

5. A wireless intelligent combined electrical fire detector as described in claim 1, characterized in that: The shaft of the drive component has a square hole, and a square bar extending from the main switch is inserted into the square hole.

6. A wireless intelligent combined electrical fire detector as described in claim 1, characterized in that: A 4G module is installed on the wireless communication gateway board of the main switch housing. The circuit on the fault arc detection board is connected to the 4G module and sends a signal to the 4G module. The fault arc detection board compares and determines the specific wire connected to the branch switch that has a fault arc, as well as the intensity of the fault arc. It then sends the fault arc branch and fault arc intensity signal to the 4G module on the wireless communication gateway board. The 4G module sends a fire signal to the nearby fire extinguishing facilities and the main control room for automatic or manual handling of the emergency.

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