Special junction box for electric energy metering and cover opening recording and early warning method

Abstract

The invention provides a junction box special for electric energy metering and a cover opening recording and early warning method. The junction box comprises a box body, a cover body, an electric control lock and a controller. Wherein the cover body is arranged outside the box body in a covering manner; the wire inlet side and the wire outlet side of the cover body are respectively provided with a first wire concentration port and a second wire concentration port. A plurality of first wiring grooves are formed in the wire inlet side of the box body, a plurality of second wiring grooves are formed in the wire outlet side of the box body, and the controller is connected with the electric control lock and used for sending an unlocking instruction to the electric control lock to control the electric control lock to be unlocked; the controller is further connected with the pressure sensor and used for receiving a feedback signal of the pressure sensor, judging whether the electric control lock is normally opened or not according to the feedback signal and sending early warning information to a mobile operation terminal when the electric control lock is abnormally opened. The cover body can be effectively prevented from being opened abnormally, and the hidden danger of electricity stealing of the junction box can be effectively eliminated.

Description

Technical Field

[0001] The invention relates to the technical field of electrical wire junction boxes, in particular to a special junction box for electric energy metering and a cover opening recording and early warning method. Background Art

[0002] A junction box is a device that protects the connection points of wires. It is usually installed at the joints of wires so that the wire joints can be connected in the junction box. It serves as a transition between wire tubes or longer lines, protecting and connecting wires. The metering junction box is a special junction box in the standard junction box of the electric energy metering device. It is suitable for the secondary circuit of electric energy metering. It can ensure the safe replacement or on-site inspection of electric energy meters, electrical instruments, leakage protection and other electrical equipment under load, ensuring personal operation safety and improving on-site work efficiency. Because the metering junction box is often exposed to the wiring of the metering circuit and is vulnerable to attack, some lawless elements achieve the purpose of stealing electricity by short-circuiting, shunting, disconnecting the voltage, etc. at the metering junction box. Summary of the invention

[0003] In view of this, the present invention proposes a special junction box for electric energy metering and a cover opening record warning method, aiming to solve the problem in the prior art that the metering junction box is often exposed to the metering loop wiring and is vulnerable to attack. In one aspect, the present invention provides a special junction box for electric energy metering, comprising: a box body, a cover body, an electric control lock and a controller; wherein: The cover is arranged outside the box body; the line inlet side and the line outlet side of the cover body are respectively provided with a first line collection port and a second line collection port, which are used to provide an inlet for the wire to enter the box body and an outlet for the wire to pass through the box body respectively; A plurality of first wiring grooves are provided on the wire inlet side of the box body, and each of the first wiring grooves is connected to the first wire collection port, so that the wires enter the first wire collection port and then pass through the first wiring grooves into the corresponding wire inlet holes; A plurality of second wiring grooves are provided on the outlet side of the box body, and each of the second wiring grooves is connected to the second wire collection port, so that the wires enter the second wire collection port and pass through the corresponding outlet holes through each of the second wiring grooves; The electric lock is placed in the box body to control the locking and unlocking of the cover body and the box body; the controller is connected to the electric lock to send an unlocking instruction to the electric lock to control the opening of the electric lock; a pressure sensor is provided on one side of the electric lock, and the controller is also connected to the pressure sensor to receive a feedback signal from the pressure sensor and determine whether the electric lock is opened normally according to the feedback signal, and send an early warning message to the mobile operation terminal when the electric lock is opened abnormally.

[0004] Furthermore, in the above-mentioned special junction box for electric energy metering, a plurality of limit members are provided on the inner wall of the cover body, and a plurality of voltage connectors and current connectors are provided inside the box body; each of the limit members is arranged corresponding to the gap at the tail of the corresponding voltage connector or current connector, so as to engage with the tail of the voltage connector or the current connector when the voltage connector or the current connector is connected in place, thereby realizing the closure of the cover body.

[0005] Furthermore, in the above-mentioned special junction box for electric energy metering, the limiting member is a block-shaped protrusion.

[0006] Furthermore, in the above-mentioned special junction box for electric energy metering, a recording module is arranged in the controller, and the recording module is connected to the pressure sensor to receive a feedback signal from the pressure sensor and record each opening event of the cover body accordingly.

[0007] Furthermore, in the above-mentioned special junction box for electric energy metering, at least one end of the box body is provided with an expandable functional interface for linkage with the electric control lock.

[0008] Furthermore, the above-mentioned special junction box for electric energy metering further includes: an expandable functional unit; wherein, The expandable function unit is connected to the expandable function interface.

[0009] Furthermore, in the above-mentioned electric energy metering dedicated junction box, the expandable functional unit includes: at least one of a metering function module, an audio and video recording function module, a remote communication function module, and an environmental monitoring function module.

[0010] Furthermore, in the above-mentioned special junction box for electric energy metering, the electric control lock is unlocked by a mobile operation terminal Bluetooth local communication method or a mobile phone code scanning authentication method.

[0011] The special junction box for electric energy metering in the present invention increases the covered area of ​​the front panel by arranging a cover body on the box body, thereby ensuring good sealing. A collection port is respectively arranged on the incoming line side and the outgoing line side of the cover body, and wiring grooves are respectively arranged on the incoming line side and the outgoing line side of the box body, which can reduce the exposed joints of the incoming and outgoing lines of the junction box and avoid short-circuiting and shunting of the inlet and outlet. At the same time, a controller, an electric control lock and a pressure sensor are arranged in the box body, and when the electric control lock is abnormally opened, an early warning message can be sent to the mobile operation terminal, thereby effectively preventing the cover body from being abnormally opened, and effectively eliminating the hidden danger of electricity theft in the junction box.

[0012] On the other hand, the present invention also proposes a cover opening record warning method for a special junction box for electric energy metering, comprising the following steps: The controller receives the feedback signal from the pressure sensor, and determines the unlocking mode of the electric lock according to the feedback signal. If the feedback signal is a cover opening signal, and the controller receives the unlocking signal, the electric lock is determined to be opened normally. If the controller does not receive the unlocking signal, the electric lock is determined to be opened abnormally. When the unlocking mode of the electric control lock is an abnormal opening mode, the controller sends an early warning message to the mobile operation terminal.

[0013] Furthermore, in the above-mentioned cover opening record and early warning method of the special junction box for electric energy metering, when the unlocking method of the electric control lock is an abnormal opening method, the controller controls the expandable functional unit to perform at least one of the following matters: collecting and sending voltage and current data, capturing and sending audio and video data, and sending early warning information.

[0014] The special junction box for electric energy metering provided by the present invention adopts a design mode of full coverage of the front panel and centralized wiring troughs to reduce exposed joints of the inlet and outlet wires of the junction box and avoid short-circuiting and shunting of the inlet and outlet; limiters are designed at corresponding positions inside the junction box to prevent the connected pieces from sliding off; an electric control lock and a cover opening recording function are designed to realize the authentication of the person opening the cover and the retention of the cover opening information; an expandable functional module is designed to realize electric quantity data collection, abnormal comparison, audio and video recording, remote communication and alarm through plug-in module replacement, so as to achieve the purpose of eliminating the hidden danger of electricity theft of the junction box and realize the anti-electricity theft function of the special junction box for electric energy metering. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings: Figure 1 A schematic diagram of the structure of a dedicated junction box for electric energy metering provided in an embodiment of the present invention; Figure 2 A schematic diagram of the structure of a dedicated junction box panel and wiring for electric energy metering provided in an embodiment of the present invention; Figure 3 A structural schematic diagram of the normal position of the limiter when the voltage connecting piece and the current connecting piece in the special junction box for electric energy metering provided by an embodiment of the present invention are normally connected; Figure 4 A schematic diagram of a structure in which a limiter cannot normally fall into place when a voltage connector and a current connector are in a disconnected state in a dedicated junction box for electric energy metering provided by an embodiment of the present invention; Figure 5 An interactive schematic diagram of a dedicated junction box for electric energy metering provided by an embodiment of the present invention; Figure 6A schematic diagram of a state in which a lock pin is retracted in a schematic diagram of the principle of an electric control lock in a special junction box for electric energy metering provided by an embodiment of the present invention; Figure 7 A schematic diagram of a state in which a lock pin pops out in a schematic diagram of the principle of an electric control lock in a dedicated junction box for electric energy metering provided by an embodiment of the present invention; Figure 8 A schematic diagram of the state of the pressure sensor when the dedicated junction box for electric energy metering provided by an embodiment of the present invention is in an open state; Fig. 9 A schematic diagram of the state of the pressure sensor when the dedicated junction box for electric energy metering provided by an embodiment of the present invention is in a closed state; Fig.10 A flow chart of a cover opening record and early warning method for a special junction box for electric energy metering provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0016] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to be able to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features described in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0017] Device Example: See also Figure 1-2The electric energy metering junction box of the embodiment of the present invention comprises: a box body 1, a cover body 2, an electric control lock 3 and a controller 10; wherein the cover body 2 is arranged outside the box body 1; the inlet side and the outlet side of the cover body 2 are respectively provided with a first collection port 21 and a second collection port 22, which are used to provide an entrance for the wire to enter the box body 1 and an exit for the wire to pass through the box body 1; the inlet side of the box body 1 is provided with a plurality of first wiring grooves 11, each of which is connected to the first collection port 21, so that the wire enters the first collection port 21 and then passes through the corresponding inlet hole 13 through each of the first wiring grooves 11; the outlet side of the box body 1 is provided with a plurality of second wiring grooves 12, each of which is connected to the first collection port 21. 2 are connected to the second wire collection port 22, so that the wire enters the second wire collection port 22 and passes through the corresponding wire outlet hole 14 through each second wiring groove 12; the electric lock 3 is placed in the box body 1, so as to control the locking and unlocking of the cover body 2 and the box body 1; the controller is connected to the electric lock 3, so as to send an unlocking instruction to the electric lock 3 to control the opening of the electric lock; a pressure sensor 20 is provided on one side of the electric lock, and the controller 10 is also connected to the pressure sensor 20, so as to receive the feedback signal of the pressure sensor and judge whether the electric lock 3 is opened normally according to the feedback signal, and send a warning message to the mobile operation terminal when the electric lock 3 is opened abnormally.

[0018] Specifically, the inner cavity of the box body 1 is provided with a front panel, and a plurality of wiring terminals are provided on the front panel. A plurality of current connecting pieces 7 and voltage connecting pieces 6 are provided inside the wiring terminals; and a plurality of wire inlet holes 13 and wire outlet holes 14 connected to the inner cavity are respectively provided on opposite sides of the box body 1.

[0019] The cover body 2 can be a rectangular parallelepiped with an opening at the bottom, which completely covers the opening and surroundings of the box body 1, and only the first line collection port 21 and the second line collection port 22 are opened at the bottom of the side wall, so that all incoming lines enter from the first line collection port 21 and all outgoing lines pass through the second line collection port 22, which can avoid more conductive contacts from being exposed and reduce the risk of electricity theft.

[0020] More specifically, the first cable collection port 21 and the second cable collection port 22 are located at opposite sides of the cover body 2, and both of them can be arc-shaped ports, preferably semicircular holes.

[0021] The first wiring trough 11 and the second wiring trough 12 may both include a first vertical trough and a plurality of second vertical troughs that are connected, and each second vertical trough is connected to the first vertical trough via a transverse trough. The number of the second vertical troughs of the first wiring trough 11 is determined according to the number of the inlet holes, and the number of the second vertical troughs of the second wiring trough 12 is determined according to the number of the outlet holes.

[0022] The electric lock 3 can be connected to the inner wall of the cover body 2, and can be locked and unlocked with the lock hole provided on the box body 1 by the ejection and retraction of the lock pin. The electric lock 3 in this embodiment realizes the ejection and retraction of the lock pin by software controlling the on and off of the electromagnet through the electromagnetic induction principle.

[0023] Combination Figure 6 and Figure 7 The electric lock 3 controls the on and off of the electromagnet 32 ​​by software through the electromagnetic induction principle, and utilizes the stretching and compression effect of the spring 33 to realize the pop-up and retraction of the lock pin 31, and closes and opens the lock hole at the corresponding position of the front panel of the junction box.

[0024] The pressure sensor 20 is arranged in the box body at a position on one side of the electric lock 3, and a recording module is arranged in the controller, and the recording module is connected to the pressure sensor 20 to receive the feedback signal of the pressure sensor 20 and record each opening event of the cover body 2 accordingly. It can be seen that the recording module is arranged to realize the opening recording function, ensure the authentication of the person opening the cover and the effective retention of the opening information.

[0025] In this embodiment, the junction box panel can only be opened through a specific unlocking method. Each time the junction box panel is opened, the pressure sensor 20 will send a signal to the recording module in the controller. The recording module records an opening event. The electric lock 3 can be linked with the extended function module. When it is opened abnormally, audio and video recording or remote warning can be achieved through the extended module.

[0026] Combination Figure 8 and Fig. 9 A mounting seat is provided at the bottom of the box body, and a groove is provided in the mounting seat. The pressure sensor 20 can be connected to the bottom mounting groove of the box body through a spring. When the cover body is opened, the pressure sensor will pop out of the mounting groove, and when the cover body is closed, the pressure sensor will reset to the mounting groove.

[0027] The electric lock 3 is unlocked by a mobile operation terminal Bluetooth local communication method or a mobile phone code scanning authentication method.

[0028] See also Figure 3 and Figure 4 In this embodiment, a plurality of limit members 8 are provided on the inner wall of the cover body 2, and a plurality of voltage connecting pieces 6 and current connecting pieces 7 are provided inside the box body 1; each of the limit members 8 is provided corresponding to the gap at the tail of the corresponding voltage connecting piece 6 or current connecting piece 7, so as to engage with the tail of the voltage connecting piece 6 or the current connecting piece 7 when the voltage connecting piece 6 or the current connecting piece 7 is connected in place, thereby realizing the closure of the cover body 2.

[0029] More specifically, the stopper 8 is a block-shaped protrusion. The stopper and the cover body 2 can be integrally formed. Each stopper can be arranged on the inner wall of the cover body 2 at the position of the incoming line side and the outgoing line side. In this embodiment, the size of each stopper 8 can be determined according to the size of the gap at the end of the voltage connecting piece 6 or the current connecting piece 7.

[0030] It can be seen that once the voltage and current connecting piece 7 is in the disconnected state (not connected state), the limiter cannot be inserted into the corresponding gap, so that the cover body 2 cannot be inserted into the box body 1 of the junction box. Only when the voltage and current connecting piece 7 is connected in place, the cover body 2 can be inserted into the box body 1, which can serve as a reminder that the connecting piece is not connected.

[0031] Continue reading Figure 1 In the above embodiment, at least one end of the box body 1 is provided with an expandable functional interface 4 for linkage with the electric control lock 3 .

[0032] Specifically, the extensible function interface 4 is a plug-and-play extensible function interface 4 .

[0033] Correspondingly, the electric energy metering dedicated junction box of this embodiment further includes: an expandable functional unit 5; wherein the expandable functional unit 5 is connected to the expandable functional interface 4. More specifically, the expandable functional unit 5 is connected to the internal integrated circuit of the junction box through a hot-swap interface, but the functional circuit operates independently, so as to realize the connection of different functional modules with the internal integrated circuit of the junction box.

[0034] Furthermore, according to different design requirements, the expandable functional unit 5 in this embodiment includes at least one of a metering function module, an audio and video recording function module, a remote communication function module, and an environmental monitoring function module.

[0035] Taking the metering function module as an example, the controller in the box interacts with the electric energy meter to obtain the voltage and current data of the electric energy meter in real time, and compares it with the voltage and current data collected by the metering function module, so as to send abnormal alarm information to the mobile operation terminal when the voltage and current data are abnormal.

[0036] like Figure 5 As shown, the junction box exchanges data with the energy meter through the RS485 communication interface, obtains the voltage and current data of the energy meter in real time, and compares it with the voltage and current data collected by itself. If the current data is analyzed to be abnormal, the abnormal alarm information is sent to the mobile operation terminal of the substation manager through the 4G communication interface, and the real-time data is sent to the collection terminal, which is forwarded and reported to the background system through the collection terminal. After receiving the abnormal alarm information, the substation manager can control the junction box electric lock 3 to unlock and open the cover for inspection after arriving at the site through the Bluetooth communication interface of the mobile operation terminal.

[0037] It can be obviously concluded from the above that the special junction box for electric energy metering provided in the present embodiment increases the covered area of ​​the front panel by covering the box body with a cover body, thereby ensuring good sealing. A collection port is respectively arranged on the incoming and outgoing sides of the cover body, and wiring grooves are respectively arranged on the incoming and outgoing sides of the box body, which can reduce the exposed joints of the incoming and outgoing wires of the junction box and avoid short-circuiting and shunting of inlets and outlets. At the same time, a controller, an electric lock and a pressure sensor are arranged in the box body, which can send an early warning message to the mobile operation terminal when the electric lock is opened abnormally, thereby effectively preventing the cover body from being opened abnormally, and effectively eliminating the hidden danger of electricity theft from the junction box.

[0038] Method Example: Combination Fig.10 The present invention also provides a method for recording and warning the opening of a cover of a special junction box for electric energy metering, comprising the following steps: In step S1, the controller receives the feedback signal from the pressure sensor 20, and determines the unlocking mode of the electric lock according to the feedback signal. If the feedback signal is a cover opening signal and the controller receives the unlocking signal, the electric lock is determined to be opened normally. If the controller does not receive the unlocking signal, the electric lock is determined to be opened abnormally.

[0039] In specific implementation, one of the normal opening methods is: the controller receives the unlocking signal, and sends an unlocking command to the electric lock to control the electric lock to open. That is: when the electric lock needs to be opened, the remote control sends a signal to the controller, the controller sends an unlocking command to the electric lock, and the lock pin of the electric lock is recovered, so that the box body opens. In addition, you can also scan the code through the mobile phone app, and after the management background passes the identity authentication, remote control the unlocking via 4G communication. Of course, the normal unlocking method is not limited to the above two methods. Except for the unlocking methods defined by the user according to the above needs, all other methods are abnormal unlocking methods.

[0040] Step S2: When the unlocking mode of the electric lock is an abnormal opening mode, the controller sends an early warning message to the mobile operation terminal.

[0041] Specifically, in the case of normal and abnormal opening of the electric lock, the pressure sensor will pop up and send a feedback signal to the controller. The recording module of the controller will generate a record of opening the cover. At the moment of opening the cover, if the controller receives an unlocking signal during this period, it will be judged as a normal opening of the cover. If not, it is not a normal opening of the cover.

[0042] In specific implementation, when the unlocking mode of the electric lock 3 is an abnormal opening mode, the controller controls the expandable functional unit to perform at least one of the following items: collecting and sending voltage and current data, capturing and sending audio and video data, and sending warning information.

[0043] Specifically, related matters can be processed according to the module settings in the expandable functional unit. For example, the voltage and current data of the electric energy meter are collected through the metering function module and sent to the controller. The controller compares the voltage and current data with the voltage and current data collected by the electric energy meter to send an early warning message to the terminal when the data is abnormal. The audio and video recording function module collects audio and video data of opening the cover and sends it to the controller. The controller sends an early warning message to the terminal based on the data.

[0044] The related parts of the method embodiment and the above-mentioned device embodiment can be referred to each other and will not be described in detail here.

[0045] In summary, the present invention adopts a design method of full coverage of the front panel and centralized wiring troughs to reduce the exposed joints of the inlet and outlet wires of the junction box and avoid short-circuiting and shunting of the inlet and outlet; limiters are designed at corresponding positions inside the junction box to prevent the continuous pieces from sliding off; electric control locks and cover opening recording functions are designed to realize the authentication of the person opening the cover and the retention of cover opening information; expandable functional modules are designed to realize power data collection, abnormality comparison, audio and video recording, remote communication and alarm through plug-in module replacement, so as to achieve the purpose of eliminating the hidden dangers of electricity theft in the junction box and realize the anti-electricity theft function of the special junction box for electricity metering.

[0046] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A special junction box for electric energy metering, characterized in that: include: Box body, cover body, electric lock and controller; wherein, The cover is arranged outside the box body; the line inlet side and the line outlet side of the cover body are respectively provided with a first line collection port and a second line collection port, which are used to provide an inlet for the wire to enter the box body and an outlet for the wire to pass through the box body respectively; A plurality of first wiring grooves are provided on the wire inlet side of the box body, and each of the first wiring grooves is connected to the first wire collection port, so that the wires enter the first wire collection port and then pass through the first wiring grooves into the corresponding wire inlet holes; A plurality of second wiring grooves are provided on the outlet side of the box body, and each of the second wiring grooves is connected to the second wire collection port, so that the wires enter the second wire collection port and pass through the corresponding outlet holes through each of the second wiring grooves; The electric lock is placed in the box body to control the locking and unlocking of the cover body and the box body; the controller is connected to the electric lock to send an unlocking instruction to the electric lock to control the opening of the electric lock; a pressure sensor is provided on one side of the electric lock, and the controller is also connected to the pressure sensor to receive a feedback signal from the pressure sensor and determine whether the electric lock is opened normally according to the feedback signal, and send an early warning message to the mobile operation terminal when the electric lock is opened abnormally.

2. The electric energy metering dedicated junction box according to claim 1, characterized in that: The inner wall of the cover body is provided with a plurality of limit members, and a plurality of voltage connectors and current connectors are arranged inside the box body; each of the limit members is arranged corresponding to the gap at the tail of the corresponding voltage connector or current connector, so as to engage with the tail of the voltage connector or the current connector when the voltage connector or the current connector is connected in place, thereby realizing the closure of the cover body.

3. The electric energy metering dedicated junction box according to claim 2, characterized in that: The limiting member is a block-shaped protrusion.

4. The dedicated junction box for electric energy metering according to claim 1, characterized in that: A recording module is arranged in the controller, and the recording module is connected to the pressure sensor to receive a feedback signal from the pressure sensor and record each opening event of the cover body accordingly.

5. The dedicated junction box for electric energy metering according to claim 1, characterized in that: At least one end of the box body is provided with an expandable functional interface for linkage with the electric control lock.

6. The special junction box for electric energy metering according to claim 5, characterized in that: Also includes: An expandable functional unit; wherein the expandable functional unit is connected to the expandable functional interface.

7. The dedicated junction box for electric energy metering according to claim 6, characterized in that: The expandable functional unit includes at least one of a metering functional module, an audio and video recording functional module, a remote communication functional module, and an environmental monitoring functional module.

8. The dedicated junction box for electric energy metering according to claim 1, characterized in that: The electric control lock is unlocked by a mobile operation terminal Bluetooth local communication method or a mobile phone code scanning authentication method.

9. A method for recording and warning the opening of a cover of a special junction box for electric energy metering according to any one of claims 1 to 8, characterized in that: The following steps are involved: The controller receives the feedback signal from the pressure sensor, and determines the unlocking mode of the electric lock according to the feedback signal. If the feedback signal is a cover opening signal, and the controller receives the unlocking signal, the electric lock is determined to be opened normally. If the controller does not receive the unlocking signal, the electric lock is determined to be opened abnormally. When the unlocking mode of the electric control lock is an abnormal opening mode, the controller sends an early warning message to the mobile operation terminal.

10. The method for recording and warning the opening of the cover of the special junction box for electric energy metering according to claim 9, characterized in that: When the unlocking mode of the electric lock is an abnormal opening mode, the controller controls the expandable functional unit to perform at least one of the following: collecting and sending voltage and current data, capturing and sending audio and video data, and sending warning information.

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