Guide rail type ammeter with electric arc identification function

Abstract

The utility model discloses a guide rail type ammeter with arc identification, which relates to the technical field of guide rail type ammeters and comprises a shell, a sensor and a mounting plate, the sensor and the mounting plate are positioned on two sides of the shell, and moving assemblies are arranged at one end of the shell and one side of the sensor and the mounting plate; the moving assembly comprises two moving rods, a mounting shell, a fixed cover and a driving mechanism, the driving mechanism is arranged on one side of the sensor and one side of the mounting plate, the two moving rods are slidably mounted at the top end of the shell and fixedly mounted on the two sides of the mounting shell, and the fixed cover is fixedly mounted at the top end of the mounting shell through bolts; according to the technical scheme provided by the utility model, by arranging the moving assembly, when the sensor detects a fault arc, the interior of the electric meter can be powered off, and the driving mechanism is controlled to drive the moving rod to ascend, so that the connector is separated from the connecting end, the electric meter can be separated from the connecting wire, and the damage to the electric meter caused by high temperature at the connecting part of the connecting wire and the electric meter is reduced; and the safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rail type electric meters, in particular to a rail type electric meter with arc recognition. Background Art

[0002] The installation of the terminal electric energy meter generally adopts the traditional wall-mounted installation method, which has the disadvantages of large volume and inconvenient installation. The rail type electric meter adopts modular design, which has the advantages of small volume, easy installation, easy networking, etc. Nowadays, when using the rail type electric energy meter, the arc fault is generally processed by cutting off the power inside the electric meter. However, after the power is cut off, the wiring is still connected to the electric meter, and the height of the connection end can damage the electric meter, which has potential safety hazards. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a rail type electric meter with arc recognition to solve the problem that the top layer of the prior art is prone to tilt and affect the massage effect.

[0004] In view of this, the utility model provides a rail type electric meter with arc recognition, which includes a housing, a sensor and a mounting plate. The sensor and the mounting plate are located on both sides of the housing, and a moving component is arranged at one end of the housing and on one side of the sensor and the mounting plate.

[0005] The moving component includes two moving rods, a mounting shell, a fixing cover and a driving mechanism. The driving mechanisms are respectively arranged on one side of the sensor and the mounting plate. The two moving rods are slidably mounted on the top of the housing. The moving rods are fixedly mounted on both sides of the mounting shell. The fixing cover is fixedly mounted on the top of the mounting shell by bolts.

[0006] Optionally, connection grooves are formed at the top ends of both sides of the housing, and two moving grooves are formed at the top of the housing. The moving grooves are communicated with the corresponding connection grooves.

[0007] Optionally, a sliding groove is formed on one side of the wall of the moving groove. One side of the moving rod is slidably mounted on the wall of the sliding groove, and a rack is fixedly mounted on one side of the moving rod.

[0008] Optionally, the driving mechanism includes a support plate, a motor and a gear. The support plates are respectively fixedly mounted on one side of the sensor and the mounting plate. The motor is fixedly mounted on one side of the support plate. The gear is fixedly mounted on the output end of the motor.

[0009] Optionally, the gear at the output end of the motor meshes with the corresponding rack.

[0010] Optionally, the positions corresponding to the support plates respectively correspond to the connection grooves on both sides of the housing, and the support plates are respectively slidably installed on the inner walls of the corresponding connection grooves.

[0011] Optionally, a circuit board and connection terminals are fixedly installed on the inner wall of the housing, and the connection terminals are connected to the circuit board through wires.

[0012] Optionally, a connection head is installed on the inner wall of the mounting shell, and the connection head is engaged with the connection terminal.

[0013] Optionally, a single-chip microcomputer is fixedly installed on the inner wall of the mounting plate, and the single-chip microcomputer is connected to a motor on one side of the mounting plate through a wire.

[0014] Optionally, a plurality of indicator lights are fixedly installed on one side of the housing.

[0015] As can be seen from the above technical solutions, the embodiments of the present invention have the following advantages:

[0016] 1. For the rail-mounted electric meter with arc recognition of the present invention, by setting the moving component, when the sensor detects a faulty arc, the power inside the electric meter is cut off, and the control drive mechanism drives the moving rod to rise, so that the connection head is disengaged from the connection terminal, and the electric meter can be disconnected from the wiring, reducing the damage to the electric meter caused by the high temperature at the connection between the wiring and the electric meter, and increasing safety.

[0017] 2. For the rail-mounted electric meter with arc recognition of the present invention, the indicator light can be a large LED light strip, which emits red light and is connected to the single-chip microcomputer through a wire. When a faulty arc appears in the electric meter, the red light comes on, enabling the staff to quickly locate the faulty electric meter.

[0018] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention, and those of ordinary skill in the art can also obtain other drawings based on the structures shown in these drawings without creative efforts.

[0020] Figure 1 It is a schematic structural diagram of the present invention;

[0021] Figure 2 It is a cross-sectional view of the present invention;

[0022] Figure 3 For the present inventionFigure 2 Enlarged view of part A

[0023] Figure 4 This is the installation shell diagram of the present utility model.

[0024] Explanation of reference numerals in the drawings: 1. Outer shell; 2. Connection groove; 3. Moving groove; 4. Circuit board; 5. Connection end; 6. Moving rod; 7. Installation shell; 8. Fixed cover; 9. Connector; 10. Sensor; 11. Mounting plate; 12. Single-chip microcomputer; 13. Support plate; 14. Motor; 15. Gear; 16. Warning lamp. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0027] In addition, if there are descriptions such as "first" and "second" in the embodiments of the present utility model, the descriptions of "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0028] Next, a rail type electric meter with arc recognition in the embodiments of the present utility model will be specifically described in conjunction with the drawings.

[0029] Embodiment 1

[0030] For ease of understanding, please refer to Figures 1 to 4, an embodiment of a rail type electric meter with arc recognition provided by the present utility model includes a housing 1, a sensor 10 and a mounting plate 11. The sensor 10 and the mounting plate 11 are located on both sides of the housing 1. A moving component is provided at one end of the housing 1 and on one side of the sensor 10 and the mounting plate 11. The moving component includes two moving rods 6, a mounting shell 7, a fixing cover 8 and a driving mechanism. The driving mechanisms are respectively arranged on one side of the sensor 10 and the mounting plate 11. The two moving rods 6 are slidably mounted on the top of the housing 1. The moving rods 6 are fixedly mounted on both sides of the mounting shell 7. The fixing cover 8 is fixedly mounted on the top of the mounting shell 7 by bolts.

[0031] In this example, by setting the moving component, when the sensor 10 detects a fault arc, the power inside the electric meter is cut off, and the driving mechanism is controlled to drive the moving rod 6 to rise, so that the connecting head 9 is separated from the connecting end 5, and the electric meter can be separated from the wiring, reducing the damage to the electric meter caused by the high temperature at the connection between the wiring and the electric meter, increasing safety. By setting the mounting shell 7 and the fixing cover 8, the connecting head 9 can be installed in the mounting shell 7. By setting the moving rod 6, the mounting shell 7 and the fixing cover 8 can be driven to move up and down. By setting the driving mechanism, the moving rod 6 can be moved;

[0032] The sensor 10 is a fault arc detection sensor, and the fault arc detection sensor detects the arc in the following three ways:

[0033] ① Detection by current:

[0034] The simplest method for the fault arc detector to detect the arc is to judge by the characteristics of the current amplitude and the slope of the current waveform when the arc occurs. However, this judgment only through the time domain has certain limitations and may lead to misjudgment.

[0035] ② Detection by analyzing the signal in the frequency domain:

[0036] This analysis method analyzes and judges the current and voltage signals from the perspective of the frequency domain, which is simpler and more convenient than the time domain analysis method and is more intuitive physically. The judgment of the fault arc will be more accurate. However, if the frequency of the signal is inconsistent with the sampling frequency, it will lead to spectrum leakage and fence effect, making the calculation result lose accuracy and thus affecting the arc detection.

[0037] ③ The fault arc detector can detect through wavelet transform:

[0038] The wavelet transform can produce good local change characteristics in both the time domain and the frequency domain. Moreover, it has good adaptability to signals. Thus, most signals can be extracted from the original data. This method mainly uses the wavelet transform to analyze the fault arc current signal, which can not only reflect the mutation of the current signal, but also detect the magnitude of this mutation. Through the research and analysis of this information, the fault arc detector can further improve the judgment accuracy of the arc.

[0039] In some embodiments, as Figure 2 shown, connection grooves 2 are provided at the top ends on both sides of the housing 1, two moving grooves 3 are provided at the top of the housing 1, the moving grooves 3 communicate with the corresponding connection grooves 2, a sliding groove is provided on one side of the groove wall of the moving groove 3, and one side of the moving rod 6 is slidably installed on the groove wall of the sliding groove. A rack is fixedly installed on one side of the moving rod 6.

[0040] In this example, the moving rod 6 is installed in the sliding groove through a slider protruding from one side, and the sliding groove limits the moving rod 6 when the moving rod 6 moves up and down.

[0041] In some embodiments, as Figure 2 shown, the driving mechanism includes a support plate 13, a motor 14 and a gear 15. The support plate 13 is fixedly installed on one side of the sensor 10 and the mounting plate 11 respectively. The support plate 13 is slidably installed on the groove wall of the corresponding connection groove 2 respectively. The motor 14 is fixedly installed on one side of the support plate 13. The gear 15 is fixedly installed on the output end of the motor 14. The gear 15 meshes with the corresponding rack. A circuit board 4 and a connection end 5 are fixedly installed on the inner wall of the housing 1. The connection end 5 is connected to the circuit board 4 through a wire. A connection head 9 is installed on the inner wall of the mounting shell 7. The connection head 9 is engaged with the connection end 5. A single-chip microcomputer 12 is fixedly installed on the inner wall of the mounting plate 11. The single-chip microcomputer 12 is connected to the motor 14 on one side of the mounting plate 11 through a wire.

[0042] In this example, the housing 1, the sensor 10 and the mounting plate 11 are fixedly installed on the guide rail on one side of the wall through bolts. And when the installation is completed, the driving mechanisms installed on one side of the sensor 10 and the mounting plate 11 are respectively inserted into the connection grooves 2 on both sides of the housing 1, and the gears 15 are respectively engaged with the racks on one side of the corresponding moving rods 6. Starting the motor 14 can drive the gear 15 to rotate, thereby driving the moving rod 6 to move.

[0043] In this example, the sensor 10 can be selected as a fault arc sensor for checking the fault arc in the electric meter, and independent power supplies are provided on the sensor 10 and the mounting plate 11, and people can operate after the electric meter is powered off.

[0044] In this example, communication modules are provided in the circuit of the sensor 10 and on the single-chip microcomputer 12. Through wireless connection, the motors 14 thereon can be started synchronously.

[0045] In this example, the motor 14 can be a servo motor. During the operation of the servo motor, its motion state is detected through a mechanism called "position feedback". Specifically, there are two or more permanent magnets or electromagnets on the rotor of the servo motor, which are installed on a rotating ring. When the rotor rotates around the axis, a magnetic pole on the ring interacts with a magnetic pole on the rotor, causing the motion of another magnetic pole. This moving magnetic pole interacts with the second magnetic pole, generating an electric current on the ring, and the direction of the current is opposite to the rotation direction of the rotor.

[0046] Embodiment 2

[0047] In some embodiments, such as Figure 1 shown, several indicator lights 16 are fixedly installed on one side of the housing 1.

[0048] In this example, the indicator lights 16 can be large LED light strips that emit red light and are connected to the single-chip microcomputer 12 through wires. When a fault arc appears in the electric meter, the red lights turn on, allowing the staff to quickly locate the faulty electric meter.

[0049] Working principle: During installation and wiring, the housing 1, the sensor 10, and the mounting plate 11 are fixedly installed on the guide rail on one side of the wall through bolts. When the installation is completed, the driving mechanisms installed on one side of the sensor 10 and the mounting plate 11 are respectively inserted into the connection slots 2 on both sides of the housing 1, and the gears 15 are respectively engaged with the racks on one side of the corresponding moving rods 6. The connecting head 9 is inserted into the mounting shell 7 and fixed by the fixing cover 8. Then the moving rod 6 descends, driving the connecting head 9 to insert into the connection end 5. When a fault occurs, the motor 14 starts and can drive the gear 15 to rotate, thereby driving the moving rod 6 to move, causing the connecting head 9 to disengage from the connection end 5. And by setting the moving components, when the sensor 10 detects a fault arc, the inside of the electric meter is powered off, and the driving mechanism is controlled to drive the moving rod 6 to rise, causing the connecting head 9 to disengage from the connection end 5, which can disconnect the electric meter from the wiring, reduce the damage to the electric meter caused by the high temperature at the connection between the wiring and the electric meter, increase safety. By setting the mounting shell 7 and the fixing cover 8 to install the connecting head 9 in the mounting shell 7, by setting the moving rod 6, the mounting shell 7 and the fixing cover 8 can be driven to move up and down, and by setting the driving mechanism, the moving rod 6 can be moved;

[0050] The housing 1, the sensor 10, and the mounting plate 11 are fixedly installed on the guide rail on one side of the wall through bolts. When the installation is completed, the driving mechanisms installed on one side of the sensor 10 and the mounting plate 11 are respectively inserted into the connection slots 2 on both sides of the housing 1, and the gears 15 are respectively engaged with the racks on one side of the corresponding moving rods 6. When the motor 14 starts, it can drive the gear 15 to rotate, thereby driving the moving rod 6 to move.

[0051] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present application.

Claims

1. A guide rail type electric meter with arc recognition, characterized in that, It includes a housing (1), a sensor (10) and a mounting plate (11). The sensor (10) and the mounting plate (11) are located on both sides of the housing (1). A moving component is provided at one end of the housing (1) and on one side of the sensor (10) and the mounting plate (11). The moving component includes two moving rods (6), a mounting shell (7), a fixing cover (8) and a driving mechanism. The driving mechanisms are respectively arranged on one side of the sensor (10) and the mounting plate (11). The two moving rods (6) are slidably mounted on the top of the housing (1). The moving rods (6) are fixedly mounted on both sides of the mounting shell (7). The fixing cover (8) is fixedly mounted on the top of the mounting shell (7) by bolts.

2. The rail type electric meter with arc recognition according to claim 1, characterized in that Connection grooves (2) are formed at the top ends of both sides of the housing (1). Two moving grooves (3) are formed at the top of the housing (1). The moving grooves (3) communicate with the corresponding connection grooves (2).

3. The rail type electric meter with arc recognition according to claim 2, characterized in that, A sliding groove is formed on one side of the groove wall of the moving groove (3). One side of the moving rod (6) is slidably mounted on the groove wall of the sliding groove. A rack is fixedly mounted on one side of the moving rod (6).

4. The rail type electric meter with arc recognition according to claim 3, characterized in that, The driving mechanism includes a support plate (13), a motor (14) and a gear (15). The support plates (13) are respectively fixedly mounted on one side of the sensor (10) and the mounting plate (11). The motor (14) is fixedly mounted on one side of the support plate (13). The gear (15) is fixedly mounted on the output end of the motor (14).

5. The rail type electric meter with arc recognition according to claim 4, characterized in that, The gear (15) at the output end of the motor (14) meshes with the corresponding rack.

6. The rail type electric meter with arc recognition according to claim 4, characterized in that, The positions corresponding to the support plates (13) respectively correspond to the connection grooves (2) on both sides of the housing (1), and the support plates (13) are respectively slidably mounted on the groove walls of the corresponding connection grooves (2).

7. The guide rail type electric meter with electric arc recognition according to claim 1, characterized in that, A circuit board (4) and a connection terminal (5) are fixedly mounted on the inner wall of the housing (1). The connection terminal (5) is connected to the circuit board (4) through a wire.

8. The rail type electric meter with arc recognition according to claim 7, characterized in that A connection head (9) is mounted on the inner wall of the mounting shell (7). The connection head (9) is engaged with the connection terminal (5).

9. The rail type electric meter with arc recognition according to claim 4, characterized in that, A single-chip microcomputer (12) is fixedly mounted on the inner wall of the mounting plate (11). The single-chip microcomputer (12) is connected to the motor (14) on one side of the mounting plate (11) through a wire.

10. The rail type electric meter with arc recognition according to claim 1, characterized in that, A plurality of indicator lights (16) are fixedly mounted on one side of the housing (1).

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