CN220650766U - Ammeter and switch board - Google Patents

Abstract

The application provides an ammeter and switch board, the ammeter includes: the host module is provided with a power connection part, a communication connection part and a three-phase voltage connection part; a plurality of multi-loop metering modules, each configured to meter a single-phase power supply or a multi-phase power supply, and the multi-loop metering modules metering the single-phase power supply are arbitrarily combined with the multi-loop metering modules metering the multi-phase power supply; the multi-loop metering modules are sequentially connected in series, and the multi-loop metering modules positioned at the head end of the series connection are connected with the power connection part, the communication connection part and the three-phase voltage connection part. According to the multi-loop metering module, the metering single-phase power supply and the multi-phase units are sequentially connected in series, and the power supply and communication of the multi-loop metering modules can be realized by adopting one bus, so that the wiring of the ammeter is simplified, and the construction cost of the ammeter is reduced.

Description

Ammeter and switch board

Technical Field

The application relates to the technical field of electrical equipment, in particular to an ammeter and a power distribution cabinet.

Background

At present, in the field of power application, there is a need to monitor power data of electrical equipment so as to monitor the operation states of various equipment in a power system in real time. However, the existing power monitoring technology needs to monitor by using an independent single-phase electric meter or a three-phase electric meter, each electric meter needs to be connected with an independent power signal for supplying power, and an independent communication line is connected for acquiring electric meter data, which leads to the problems of complex wiring of products and high construction cost.

Disclosure of Invention

The application provides an ammeter and switch board, aims at solving the current complex and high technical problem of construction cost of a plurality of ammeter wiring.

In a first aspect, the present application provides an electricity meter comprising:

the host module is provided with a power connection part, a communication connection part and a three-phase voltage connection part;

a plurality of multi-loop metering modules, each configured to meter a single-phase power supply or a multi-phase power supply, and the multi-loop metering modules metering the single-phase power supply are arbitrarily combined with the multi-loop metering modules metering the multi-phase power supply;

the multi-loop metering modules are sequentially connected in series, and the multi-loop metering modules positioned at the head end of the series are connected with the power connection part, the communication connection part and the three-phase voltage connection part, so that each multi-loop metering module indirectly or directly receives a power signal, a communication signal and a three-phase voltage signal.

In some embodiments, the plurality of multi-loop metering modules includes a plurality of single-phase multi-loop metering modules;

the single-phase multi-loop metering module is configured to meter a single-phase power supply, and the plurality of single-phase multi-loop metering modules are sequentially connected in series.

In some embodiments, the plurality of multi-loop metering modules further comprises at least one multi-phase multi-loop metering module;

The multi-phase multi-loop metering module is configured to meter a multi-phase power source, and the multi-phase multi-loop metering module is connected in series between any adjacent single-phase multi-loop metering modules.

In some embodiments, the plurality of multi-loop metrology modules includes a plurality of multi-phase multi-loop metrology modules;

the multi-phase multi-loop metering module is configured to meter a multi-phase power source, and the plurality of multi-phase multi-loop metering modules are serially connected in sequence.

In some embodiments, the plurality of multi-loop metering modules further comprises at least one single-phase multi-loop metering module;

the single-phase multi-loop metering module is configured to meter a single-phase power source, and the single-phase multi-loop metering module is connected in series between any adjacent multi-phase multi-loop metering modules.

In some embodiments, a plurality of multi-loop metering module arrays are arranged, and the multi-loop metering modules of the same row are sequentially connected in series;

the ammeter also comprises a switching module and a switching flat cable, wherein the switching module is connected with the multi-loop metering module which is arranged in the same row and at the tail end of the arrangement;

one end of the switching flat cable is connected with the switching module of the upper row, and the other end is connected with the multi-loop metering module of the next row and the head end.

In some embodiments, the patching module has a sixth interface and a seventh interface;

The opposite two sides of the sixth interface are provided with third buckles; and/or

And third buckles are arranged on two opposite sides of the seventh interface.

In some embodiments, the single-phase multi-loop metering module has a second interface and a fourth interface, the second interface and the fourth interface being located on opposite sides of the single-phase multi-loop metering module, respectively;

the two opposite sides of the second interface are provided with first clamping grooves, and the two opposite sides of the fourth interface are provided with first buckles;

the first buckle corresponds to the first clamping groove, and the first buckle between the adjacent single-phase multi-loop metering modules is matched with the first clamping groove.

In some embodiments, the multiphase multi-loop metering module has a third interface and a fifth interface, the third interface and the fifth interface being located on opposite sides of the multiphase multi-loop metering module, respectively;

the two opposite sides of the third interface are provided with second clamping grooves, and the two opposite sides of the fifth interface are provided with second buckles;

the second buckle corresponds to the first clamping groove, and the second clamping groove corresponds to the first buckle.

In some embodiments, the multi-circuit metering module has a threading aperture therethrough and a mounting chute;

the threading hole extends along a first direction, the installation chute extends along a second direction, and the first direction and the second direction are mutually perpendicular.

In some embodiments, a clamping block which stretches along a first direction and a spring which extends along the first direction are arranged in the installation chute;

one end of the spring is contacted with the clamping block, and the other end is contacted with the inner side wall of the installation chute so as to drive the clamping block to be clamped with the installation component.

In a second aspect, the present application provides a method for monitoring power data, the method being applied to the electric meter according to the first aspect, the method comprising:

the host module sends a data receiving instruction to the corresponding multi-loop metering module according to the communication address of the multi-loop metering module;

the multi-loop metering module sends its measured power data to the host module based on the data reception instruction.

In some embodiments, before the host module sends the data receiving instruction to the corresponding multi-loop metering module according to the communication address of the multi-loop metering module, the method further includes:

the host module sends broadcast signals to the multiple multi-loop metering modules;

the plurality of multi-loop metering modules are based on broadcast signals, so that communication among the multi-loop metering modules connected in series is disconnected;

the host module sequentially sends reading signals to the serially connected multi-loop metering modules to determine the communication addresses of the multi-loop metering modules.

In some embodiments, the step of the host module sequentially sending a read signal to the serially connected multi-loop metering modules to determine the communication addresses of the plurality of multi-loop metering modules includes:

the host module sends a reading signal to the multi-loop metering module connected in series with the Nth stage;

the multi-loop metering module connected in series with the N-th stage sends a reply signal to the host module, and the host module configures a communication address of the multi-loop metering module connected in series with the N-th stage according to the reply signal;

the multi-loop metering module connected with the N-th stage in series controls the multi-loop metering module to be in communication connection with the multi-loop metering module connected with the (n+1) -th stage in series;

wherein N is an integer greater than or equal to 1.

In a third aspect, the present application provides a power distribution cabinet, comprising an electric meter according to the first aspect.

According to the multi-loop metering module, the metering single-phase power supply and the multi-loop metering modules of the multi-phase units are sequentially connected in series, the multi-loop metering modules located at the head end of the series are connected with the power connection part, the communication connection part and the three-phase voltage connection part, the power connection part of the host module is used for providing power for the multi-loop metering modules connected in series, the communication connection part of the host module is used for being connected with the multi-loop metering modules connected in series in communication, the three-phase voltage connection part is used for providing three-phase voltage signals for the multi-loop metering modules connected in series, the power supply and the communication of the multi-loop metering modules can be realized through one bus, and the connection of an ammeter system is facilitated, and the construction cost of an ammeter is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a structure of an electricity meter provided in an embodiment of the present application;

FIG. 2 is a schematic view of another construction of an electricity meter provided in an embodiment of the present application;

FIG. 3 is a schematic side view of a single-phase multi-loop metering module provided in an embodiment of the present application;

FIG. 4 is another side schematic view of a single-phase multi-loop metering module provided in an embodiment of the present application;

FIG. 5 is a schematic diagram of a host module according to an embodiment of the present application;

FIG. 6 is a schematic side view of a multi-phase, multi-circuit metering module provided in an embodiment of the present application;

FIG. 7 is another side schematic view of the multiphase, multi-circuit metering module provided in an embodiment of the present application;

FIG. 8 is a schematic view of another construction of an electricity meter provided in an embodiment of the present application;

FIG. 9 is a schematic structural view of a switching module according to an embodiment of the present disclosure;

FIG. 10 is a schematic diagram of a side structure of a patching module provided in an embodiment of the present application;

FIG. 11 is a schematic view of another structure of a switch module according to an embodiment of the present disclosure;

FIG. 12 is a schematic diagram of a configuration of a multi-loop metering module provided in an embodiment of the present application;

FIG. 13 is a schematic flow chart of a method for monitoring power data provided in an embodiment of the present application;

FIG. 14 is a schematic flow chart of the communication address configuration provided in the embodiment of the present application;

fig. 15 is a schematic flow chart of configuring a communication address according to an embodiment of the present application.

The device comprises a 10 host module, a 11 first interface, a 20 multi-loop metering module, a 201 threading hole, a 202 installation chute, a 203 clamping block, a 204 chute, a 21 single-phase multi-loop metering module, a 211 second interface, a 212 fourth interface, a 213 first clamping buckle, a 214 first clamping groove, a 22 multi-phase multi-loop metering module, a 221 third interface, a 223 second clamping buckle, a 224 second clamping groove, a 222 fifth interface, a 23 switching module, a 231 sixth interface, a 232 seventh interface, a 233 third clamping buckle and a 24 switching flat cable.

Detailed Description

The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In this application, the term "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the utility model. In the following description, details are set forth for purposes of explanation. It will be apparent to one of ordinary skill in the art that the present utility model may be practiced without these specific details. In other instances, well-known structures and processes have not been described in detail so as not to obscure the description of the utility model with unnecessary detail. Thus, the present utility model is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.

The embodiment of the application provides an ammeter and a power distribution cabinet, and the ammeter and the power distribution cabinet are described in detail below.

Referring first to fig. 1, fig. 1 shows a schematic structural diagram of an electric meter according to an embodiment of the present application, where the electric meter includes:

a host module 10, wherein the host module 10 is provided with a power connection part, a communication connection part and a three-phase voltage connection part;

a plurality of multi-loop metering modules 20, each multi-loop metering module 20 configured to meter single-phase power or multi-phase power, and the multi-loop metering modules 20 metering single-phase power and the multi-loop metering modules 20 metering multi-phase power are arbitrarily combined;

the multiple multi-loop metering modules 20 are sequentially connected in series, and the multi-loop metering modules 20 at the head end of the series are connected with the power connection part, the communication connection part and the three-phase voltage connection part, so that each multi-loop metering module 20 indirectly or directly receives the power signal, the communication signal and the three-phase voltage signal.

Specifically, the host module 10 may supply power to the plurality of multi-loop metering modules 20 through the power connection part, may transmit/receive communication signals returned from the plurality of multi-loop metering modules 20 through the communication connection part, and may also provide three-phase voltage signals to the plurality of multi-loop metering modules 20 through the three-phase voltage connection part. In some embodiments of the present application, the power connection portion, the communication connection portion, and the three-phase voltage connection portion may refer to pins of different portions of the connection port of the host module 10, and power, communicate, and provide three-phase voltage signals to the multiple multi-loop metering modules 20 through the pins. In some embodiments of the present application, the power connection portion, the communication connection portion, and the three-phase voltage connection portion may refer to jacks of different portions of the connection port of the host module 10, and power, communicate, and provide three-phase voltage signals to the multiple multi-loop metering modules 20 through the partial jacks.

For example, the communication wiring part can adopt RS-232C, RS-422 and RS-485 universal serial communication standards. It will be appreciated that the power connection, communication connection, and three-phase voltage connection may also refer to three pin or socket interfaces on the host module 10 through which the plurality of multi-loop metering modules 20 are powered, communicate, and provide three-phase voltage signals, respectively.

The multiple multi-loop metering modules 20 may meter power data from a single-phase power source and/or a three-phase power source for complex electric field scenarios including utility power as well as work power. In some embodiments of the present application, the multi-loop metering module 20 may measure single-phase/multi-phase power data by direct measurement, e.g., by a combination of voltmeters and ammeter. In other embodiments of the present application, the multi-loop metering module 20 may measure single-phase/multi-phase power data by way of indirect measurement, for example, may indirectly meter single-phase power data through a current transformer and a voltage transformer sleeved on a power line. In other embodiments of the present application, the multi-loop metering module 20 may measure single-phase/multi-phase power data by resistive means, e.g., by connecting a resistor of known resistance to the power output and then measuring the current and voltage through the resistor and calculating the power output of the single-phase power source.

In some embodiments of the present application, the multiple multi-circuit metering modules 20 may all be directly connected to achieve sequential series connection, e.g., interfaces (pins or sockets) are provided on opposite sides of each multi-circuit metering module 20, such that the multiple multi-circuit metering modules 20 are directly connected through the interfaces. In some embodiments of the present application, the multiple multi-loop metering modules 20 may all be indirectly connected to achieve sequential series connection, e.g., a flat cable is disposed between two multi-loop metering modules 20 adjacent in the series, through which the multiple multi-loop metering modules 20 are sequentially connected in series. In some embodiments of the present application, multiple multi-loop metering modules 20 may be connected in part directly and another part indirectly to achieve sequential series connection, e.g., part of the multi-loop metering modules 20 are directly connected by pin-to-socket mating, while the remaining non-directly connected multi-loop metering modules 20 are connected by flat cable.

In some embodiments of the present application, the plurality of multi-loop metering modules includes a plurality of single-phase multi-loop metering modules configured to meter single-phase power, and the plurality of single-phase multi-loop metering modules are serially connected in sequence. That is, the plurality of multi-loop metering modules may be composed of a plurality of single-phase multi-loop metering modules, so that the electricity meter may record power data of a plurality of devices using single-phase power.

In some embodiments of the present application, for example for embodiments in which the plurality of multi-loop metering modules comprises a plurality of single-phase multi-loop metering modules, the plurality of multi-loop metering modules further comprises at least one multi-phase multi-loop metering module; the multi-phase multi-loop metering module is configured to meter a multi-phase power source, and the multi-phase multi-loop metering module is connected in series between any adjacent single-phase multi-loop metering modules. That is, the multiphase multi-loop metering modules can be arranged at any positions of the plurality of serially connected single-phase multi-loop metering modules, so that the multiphase multi-loop metering modules can be arranged in a scene of metering the single-phase power supply to meter the multiphase power supply, and the flexibility and the expandability of the ammeter are further ensured.

In some embodiments of the present application, the plurality of multi-loop metrology modules includes a plurality of multi-phase multi-loop metrology modules; the multi-phase multi-loop metering module is configured to meter a multi-phase power source, and the plurality of multi-phase multi-loop metering modules are serially connected in sequence. That is, the plurality of multi-loop metering modules may be composed of a plurality of multi-phase multi-loop metering modules, so that the electricity meter may record power data of a plurality of devices using the multi-phase power source.

In some embodiments of the present application, for example for embodiments in which the plurality of multi-loop metering modules includes a plurality of single-phase multi-loop metering modules, the plurality of multi-loop metering modules further includes at least one single-phase multi-loop metering module configured to meter single-phase power, and the single-phase multi-loop metering modules are connected in series between any adjacent multi-phase multi-loop metering modules. That is, the single-phase multi-loop metering modules can be arranged at any positions of the plurality of serially connected multi-phase multi-loop metering modules, so that the single-phase multi-loop metering modules can be arranged in a scene of metering the multi-phase power supply to meter the single-phase power supply, and the flexibility and the expandability of the ammeter are further ensured.

In this embodiment of the present application, this application is through establishing ties in proper order a plurality of multiloop metering modules 20 that measure single-phase power and heterogeneous unit to make multiloop metering modules 20 that are located the head end of establishing ties be connected with power wiring portion, communication wiring portion and three-phase voltage wiring portion, utilize the power wiring portion of host computer module 10 to provide the power for a plurality of multiloop metering modules 20 that establish ties, and utilize the communication wiring portion of host computer module 10 to be connected with the multiloop metering modules 20 communication of a plurality of establishing ties, utilize three-phase voltage wiring portion to provide three-phase voltage signal for a plurality of multiloop metering modules 20 that establish ties simultaneously, adopt a bus can realize the power supply and the communication of a plurality of multiloop metering modules 20, be favorable to simplifying the wiring of ammeter system and reduce the construction cost of ammeter.

In some embodiments of the present application, with continued reference to fig. 2, fig. 2 illustrates another schematic diagram of an electric meter in an embodiment of the present application, wherein the plurality of multi-loop metering modules 20 includes a plurality of single-phase multi-loop metering modules 21 and at least one multi-phase multi-loop metering module 22; the single-phase multi-loop metering module 21 is configured to meter single-phase power and the multi-phase multi-loop metering module 22 is configured to meter multi-phase power. Specifically, the single-phase multi-loop metering module 21 may acquire voltage data of a single phase (for example, a phase) through the three-phase voltage wiring part, and the current transformer of the single-phase multi-loop metering module 21 may acquire current data of a single-phase power line, so as to determine single-phase electric energy data through the voltage data and the current data of the single phase; the multi-phase multi-loop metering module 22 may obtain voltage data of multiple phases (e.g., a phase, B phase, and C phase) through the three-phase voltage connection, and the current transformer of the multi-phase multi-loop metering module 22 may obtain current data of the multi-phase power line, so as to determine multi-phase power data through the voltage data and the current data of the multiple phases. Meanwhile, since the single-phase multi-loop metering module 21 can measure the electric energy data of the civil electric scene, and the multi-phase multi-loop metering module 22 can measure the industrial electric scene, the electric meter of the embodiment of the present application can be adapted to the scenes of the single-phase power supply and the multi-phase power supply at the same time.

In some embodiments of the present application, the three-phase voltage signal provided by the three-phase voltage connection portion of the host module 10 may be a strong electric signal directly from the power line, and the single-phase multi-loop metering module 21 and the multi-phase multi-loop metering module 22 may convert the strong electric signal into a weak electric signal through a voltage sampling circuit (for example, a circuit including an operational amplifier), so that the control chips inside the single-phase multi-loop metering module 21 and the multi-phase multi-loop metering module 22 may obtain the voltage signal and perform calculation.

In other embodiments of the present application, the three-phase voltage signal provided by the three-phase voltage connection portion of the host module 10 may be a weak current signal obtained by converting a strong electric signal of the power line, for example, the strong electric signal is converted into the weak current signal by the voltage sampling circuit, so that the voltage sampling circuit is not required to be provided for each of the single-phase multi-loop metering module 21 and the multi-phase multi-loop metering module 22.

In some embodiments of the present application, with continued reference to fig. 2, 3 and 4, fig. 3 illustrates a schematic side structure of the single-phase multi-loop metering module 21 in embodiments of the present application, and fig. 4 illustrates a schematic side structure of the single-phase multi-loop metering module 21 in embodiments of the present application, where the single-phase multi-loop metering module 21 has a second interface 211 and a fourth interface 212, and the second interface 211 and the fourth interface 212 are located on opposite sides of the single-phase multi-loop metering module 21, respectively; at least some of the single-phase multi-loop metering modules 21 are arranged side by side and a fourth interface 212 between adjacent single-phase multi-loop metering modules 21 is interconnected with the second interface 211.

It should be noted that, as shown in fig. 4 and fig. 5, the second interface 211 may refer to an interface having a plurality of pins, the fourth interface 212 may refer to an interface having a plurality of jacks, when two single-phase multi-loop metering modules 21 that are arranged side by side and adjacent to each other are connected, the pins of the second interface 211 of one single-phase multi-loop metering module 21 may be inserted into the jacks of the fourth interface 212 of another single-phase multi-loop metering module 21, so that the plurality of single-phase multi-loop metering modules 21 are arranged side by side to be directly connected, on one hand, the plurality of single-phase multi-loop metering modules 21 may be fixed to each other, and on the other hand, the phenomenon that the plurality of single-phase multi-loop metering modules 21 arranged side by side are connected by a flat cable may be avoided, thereby resulting in complex wiring.

It will be appreciated that the second interface 211 may also refer to an interface with a jack, while the fourth interface 212 refers to an interface with a pin.

In some embodiments of the present application, with continued reference to fig. 4 and 5, first clamping grooves 214 are provided on two opposite sides of the second interface 211, and first clamping buckles 213 are provided on two opposite sides of the fourth interface 212; the first buckle 213 corresponds to the first clamping groove 214, and the first buckle 213 between the adjacent single-phase multi-loop metering modules 21 is matched with the first clamping groove 214 to ensure the connection stability between the adjacent single-phase multi-loop metering modules 21, so as to avoid the phenomenon that the plurality of single-phase multi-loop metering modules 21 connected in series are separated.

It will be appreciated that the positions of the first catch 213 and the first slot 214 may be interchanged, for example, the first catch 213 is disposed on opposite sides of the second interface 211, and the first slot 214 is disposed on opposite sides of the fourth interface 212.

In some embodiments of the present application, with continued reference to fig. 2, 5, 6, and 7, fig. 5 illustrates a schematic structural diagram of the host module 10 in an embodiment of the present application, fig. 6 illustrates a schematic structural diagram of one side of the multi-phase multi-loop metering module 22 in an embodiment of the present application, and fig. 7 illustrates a schematic structural diagram of the other side of the multi-phase multi-loop metering module 22 in an embodiment of the present application, wherein the host module 10 has a first interface 11, and the first interface 11 includes a power connection portion, a communication connection portion, and a three-phase voltage connection portion; the multiphase multi-loop metering module 22 has a third interface 221 and a fifth interface 222, and the third interface 221 and the fifth interface 222 are respectively located at two opposite sides of the multiphase multi-loop metering module 22; the second interface 211 of the single-phase multi-loop metering module 21 at the head end of the arrangement is connected with the first interface 11, and the fourth interface 212 of the single-phase multi-loop metering module 21 at the tail end of the arrangement is connected with the third interface 221 of the multi-phase multi-loop metering module 22.

Specifically, the first interface 11 may refer to an interface having a plurality of pins/jacks, where some pins/jacks correspond to power connection portions, some pins/jacks correspond to communication connection portions, and the rest pins/jacks correspond to three-phase voltage connection portions, so as to supply, communicate and provide three-phase voltage signals to the plurality of serial multi-loop metering modules 20 through the same first interface 11. Meanwhile, the second interface 211 of the single-phase multi-loop metering module 21 at the head end of the arrangement and the first interface 11 may be connected through a flat cable, and the fourth interface 212 of the single-phase multi-loop metering module 21 at the tail end of the arrangement and the third interface 221 of the multi-phase multi-loop metering module 22 may be directly connected, so that the multi-loop metering modules 20 at the same row include the single-phase multi-loop metering module 21 and the multi-phase multi-loop metering module 22, and finally the multi-loop metering modules 20 at the same row may perform electric energy data measurement for the scene of using single-phase power and multi-phase power simultaneously.

It will be appreciated that the third interface 221 may refer to an interface having a plurality of pins, and the fifth interface 222 may refer to an interface having a plurality of jacks; alternatively, the third interface 221 may be an interface having a jack, and the fifth interface 222 may be an interface having a pin.

In some embodiments of the present application, for example, for embodiments in which the opposite sides of the second interface 211 are provided with the first clamping grooves 214, and the opposite sides of the fourth interface 212 are provided with the first clamping buckles 213, continuing to refer to fig. 6 and 7, wherein the opposite sides of the third interface 221 are provided with the second clamping grooves 224, and the opposite sides of the fifth interface 222 are provided with the second clamping buckles 223; the second catch 223 corresponds to the first catch 214, and the second catch 224 corresponds to the first catch 213. When the multiphase multi-loop metering module 22 is connected with the single-phase multi-loop metering module 21, the second clamping groove 224 at the third interface 221 can be matched with the first clamping groove 213 of the fourth interface 212, and the second clamping groove 223 at the fifth interface 222 can be matched with the first clamping groove 214 of the second interface 211, so that two sides of the multiphase multi-loop metering module 22 can be directly connected with the adjacent single-phase multi-loop metering module 21, the multiphase multi-loop metering module 22 can be fixed on the left side or the right side of the single-phase multi-loop metering module 21, and the installation stability and flexibility of the multiphase multi-loop metering module 22 are improved.

It will be appreciated that the second catch 223 may be interchanged with the second catch 224, for example, the second catch 223 is disposed on opposite sides of the fifth interface 222, and the second catch 224 is disposed on opposite sides of the third interface 221.

In some embodiments of the present application, with continued reference to fig. 8, fig. 8 illustrates another schematic diagram of an electric meter according to an embodiment of the present application, in which a plurality of multi-loop metering modules 20 are arranged in an array, and the multi-loop metering modules 20 in the same row are serially connected in sequence; the multi-loop metering module 20 positioned at the head end of the first row and arranged at the head end is connected with the host module 10; the multi-loop metering module 20 located at the tail end of the last row is in communication connection with the multi-loop metering module 20 located at the head end of the next row.

It should be noted that, since the multiple multi-loop metering modules 20 are respectively arranged in multiple rows, and meanwhile, the multi-loop metering module 20 at the tail end of the upper row is in communication connection with the multi-loop metering module 20 at the head end of the lower row, so that the multiple multi-loop metering modules 20 form multiple rows of structures, the multiple multi-loop metering modules 20 in the same row can perform electric energy data measurement for the same single-phase power supply and multiphase power supply scene, so that the multiple multi-loop metering modules 20 in multiple rows can perform electric energy data measurement for different single-phase power supplies and multiphase power supply scenes, when the single-phase power supply and the multiphase power supply are newly added, only the single-phase multi-loop metering module 21 and the multiphase multi-loop metering module 22 are needed to be newly added, which is beneficial to improving the expandability of the electric energy measurement scene.

In some embodiments of the present application, for example, for embodiments in which a plurality of single-phase multi-loop metering modules 21 are respectively arranged in multiple rows, with continued reference to fig. 8 and 9, fig. 9 shows a schematic structural diagram of a switching module 23 in the embodiments of the present application, where the electric meter further includes a switching module 23 and a switching flat cable 24, and the switching module 23 has a sixth interface 231 and a seventh interface 232; the sixth interface 231 is connected with the fifth interface 222 of the multiphase multi-loop metering module 22 which is positioned in the same row and at the tail end of the row; one end of the switching flat cable 24 is connected to the seventh interface 232, and the other end is connected to the second interface 211 of the single-phase multi-loop metering module 21 located at the head end of the next row. That is, the multi-loop metering modules 20 between different rows are connected through the switching module 23 and the switching flat cable 24, so that the multi-loop metering modules 20 between different rows are conveniently switched and connected in series, and thus, the electric energy data measurement is performed for a plurality of different scenes using single-phase power sources and multi-phase power sources.

In some embodiments of the present application, with continued reference to fig. 10, fig. 10 shows a schematic structural diagram of one side of the switching module 23 in the embodiments of the present application, where opposite sides of the sixth interface 231 are provided with third buckles 233, and the third buckles 233 may be snapped into the clipping slots on both sides of the second interface 211/the fifth interface 222, so that the switching module 23 may be fixed on one side of the single-phase multi-loop metering module 21 or the multi-phase multi-loop metering module 22, so as to ensure convenience and firmness in installation of the switching module 23.

It can be understood that, as shown in fig. 11, fig. 11 shows a schematic structural diagram of one side of the transfer module 23 in the embodiment of the present application, and third buckles 233 may also be disposed on two opposite sides of the seventh interface 232; alternatively, third buckles 233 are provided at opposite sides of the sixth interface 231 and the seventh interface 232 at the same time.

In some embodiments of the present application, with continued reference to fig. 3, 4 and 12, fig. 12 is a schematic structural diagram of a bottom portion of the multi-loop metering module 20 according to an embodiment of the present application, where the multi-loop metering module 20 has a threading hole 201 and a mounting chute 202, the threading hole 201 extends along a first direction, the mounting chute 202 extends along a second direction, and the first direction and the second direction are perpendicular to each other.

It should be noted that, the threading hole 201 may be penetrated by a power line, so that the corresponding current transformer detects a current signal of the power line, and the second chute may be convenient to mount the multi-loop metering module 20 on the corresponding sliding rail, so as to realize sliding mounting and fixing of the multi-loop metering module 20. Meanwhile, since the first direction and the second direction are perpendicular to each other, after the plurality of multi-loop metering modules 20 are installed, the adjacent multi-loop metering modules 20 do not cover the threading holes 201, thereby avoiding the phenomenon that the power line passes through the threading holes 201.

Further, in some embodiments of the present application, with continued reference to fig. 12, a latch 203 that expands and contracts in a first direction and a spring 204 that extends in the first direction are mounted within the mounting chute 202; one end of the spring 204 contacts the latch 203, and the other end contacts the inner side wall of the mounting chute 202 to drive the latch 203 to engage with the mounting member. Specifically, a groove may be provided on the inner side wall of the mounting chute 202, so as to mount the spring 204 in the groove for fixation; or the inner side wall of the installation chute 202 is provided with a sliding rod, and the spring 204 is sleeved on the sliding rod to realize fixation, as the installation chute 202 is internally provided with the clamping block 203 and the spring 204, after the multi-loop metering module 20 is installed on the corresponding sliding rail through the installation chute 202, the clamping buckle can be meshed on the sliding rail under the acting force of the spring 204, thereby avoiding the phenomenon that the multi-loop metering module 20 is separated from the sliding rail or slides left and right, and being beneficial to improving the installation firmness of the multi-loop metering module 20.

It should be noted that the foregoing description of the electric meter is intended to clearly illustrate the implementation verification process of the present application, and those skilled in the art may also make equivalent modifications of the design under the guidance of the present application, for example, connecting the multiphase multi-circuit metering modules 22 in series between any two single-phase multi-circuit metering modules 21 in the same row of multiple single-phase multi-circuit metering modules 21; for another example, a plurality of multi-phase multi-loop metering modules 22 are disposed in the same row of multi-loop metering modules 20, so that the multi-phase multi-loop metering modules 22 and the single-phase multi-loop metering modules 21 can be arbitrarily combined and arranged.

Further, in order to better implement the electric meter according to the embodiments of the present application, on the basis of the electric meter, the present application further provides a power data monitoring method, where the power data monitoring method is applied to the electric meter according to any of the embodiments described above, referring to fig. 13, fig. 13 shows a schematic flow diagram of the power data monitoring method according to the embodiments of the present application, where the power data monitoring method includes:

step S1301, the host module 10 sends a data receiving instruction to the corresponding multi-loop metering module 20 according to the communication address of the multi-loop metering module 20;

in step S1302, the multi-loop metering module 20 transmits its measured power data to the host module 10 based on the data reception instruction.

It should be noted that, the communication address of the multi-loop metering module 20 needs to be determined by the host module 10, so as to avoid the phenomenon that the communication addresses generated by different multi-loop metering modules 20 are repeated, and thus the host module 10 cannot determine the multi-loop metering module 20 corresponding to the returned power data. After the communication addresses of the multi-loop metering modules 20 are configured in advance by the host module 10, a data receiving instruction can be sent to the corresponding multi-loop metering modules 20 according to the configuration addresses, so as to receive the power data returned by the corresponding multi-loop metering modules 20, thereby realizing unified recording and display of the power data.

For example, host module 10 may perform normal data reading and parameter setting for multi-loop metering module 20 according to ModbusRTU protocol, DL645 or DL698 protocol.

In some embodiments of the present application, with continued reference to fig. 14, fig. 14 shows a schematic flow chart of configuring a communication address in an embodiment of the present application, where, before the step of sending, by the host module 10, a data receiving instruction to a corresponding multi-loop metering module 20 according to the communication address of the multi-loop metering module 20, the step of configuring the communication address includes:

step S1401, the host module 10 transmits broadcast signals to the plurality of multi-loop metering modules 20;

step S1402, the multiple multi-loop metering modules 20 disconnect the communication between each of the serially connected multi-loop metering modules 20 based on the broadcast signal;

in step S1403, the host module 10 sequentially sends a read signal to the serially connected multi-loop metering modules 20 to determine the communication addresses of the multi-loop metering modules 20.

It should be noted that, a switch (such as a MOS transistor, a triode, an IGBT transistor, or a relay) may be disposed inside each multi-loop metering module 20, and the communication between the multi-loop metering modules 20 connected in series is disconnected/connected by controlling the switch. In the initial state, the multiple multi-loop metering modules 20 are in a communication connection state, so after the host module 10 sends broadcast signals to the multiple multi-loop metering modules 20, each multi-loop metering module 20 can receive the broadcast signals, and therefore communication among the serial multi-loop metering modules 20 can be disconnected based on the broadcast signals, for example, when the broadcast signals are high-level signals, the PMOS tube is disconnected, and communication among the serial multi-loop metering modules 20 is disconnected, then only the multi-loop metering modules 20 positioned at the front end of the serial connection are in communication connection with the host module 10, and therefore the host module 10 can determine the communication addresses of the multi-loop metering modules 20 at the front end of the serial connection first, then sequentially determine the communication addresses of the rest multi-loop metering modules 20, and the phenomenon that the communication address configuration of the multiple multi-loop metering modules 20 is repeated is avoided.

In some embodiments of the present application, with continued reference to fig. 15, fig. 15 shows a schematic flow chart of configuring communication addresses in an embodiment of the present application, where the step of sequentially sending, by the host module 10, a read signal to the multi-loop metering modules 20 connected in series to determine the communication addresses of the plurality of multi-loop metering modules 20 includes:

step S1501, the host module 10 sends a read signal to the multi-loop metering module 20 of the nth stage in series;

step S1502, the multi-loop metering module 20 connected in series with the nth stage sends a reply signal to the host module 10, and the host module 10 configures a communication address of the multi-loop metering module 20 connected in series with the nth stage according to the reply signal;

step S1503, the multi-loop metering module 20 connected in series with the nth stage controls the multi-loop metering module 20 connected in series with the n+1th stage to be in communication connection; wherein N is an integer greater than or equal to 1.

It should be noted that, since communication between the serial multi-loop metering modules 20 is disconnected after the broadcast signal is received, only the multi-loop metering module 20 located at the head end of the serial connection is in communication connection with the host module 10 at the beginning, so the host module 10 may send a read signal to the serial multi-loop metering module 20 at the 1 st stage (i.e. the head end of the serial connection), the serial multi-loop metering module 20 at the 1 st stage sends a reply signal to the host module 10, so that the host module 10 configures a communication address for the serial multi-loop metering module 20 at the 1 st stage, then the serial multi-loop metering module 20 at the 1 st stage controls the serial multi-loop metering module 20 to be in communication connection with the serial multi-loop metering module 20 at the 2 nd stage, and then the host module 10 sequentially loops until determining the communication address of each multi-loop metering module 20.

Illustratively, the reply signal sent by the multi-loop metering module 20 of the nth stage in series may include its device identification code (e.g., device serial number and date of manufacture), and the host module 10 may process (e.g., encrypt) its device identification code to obtain the communication address. For example, the device identifier of the serial-level 1 multi-loop metering module 20 is 000000012012061200000001, and the communication address of the serial-level 1 multi-loop metering module 20 is: f8 10F8 10 00 0A 64C2.

It will be appreciated that the host module 10 may also configure a communication address for each multi-loop metering module 20 at the time node that the reply signal is received; alternatively, the host module 10 may also configure the communication addresses for each multi-loop metering module 20 in the order in which the reply signals were received.

Further, in order to better implement the electric meter in the embodiment of the present application, on the basis of the electric meter, the present application further provides a power distribution cabinet, where the power distribution cabinet includes the electric meter according to any one of the embodiments. Because the power distribution cabinet in the embodiment of the application is provided with the ammeter of the embodiment, the power distribution cabinet has all the beneficial effects of the ammeter, and the description is omitted here.

In the foregoing embodiments, the descriptions of the embodiments are focused on, and the portions of one embodiment that are not described in detail in the foregoing embodiments may be referred to in the foregoing detailed description of other embodiments, which are not described herein again.

While the basic concepts have been described above, it will be apparent to those skilled in the art that the foregoing detailed disclosure is by way of example only and is not intended to be limiting. Although not explicitly described herein, various modifications, improvements, and adaptations of the present application may occur to one skilled in the art. Such modifications, improvements, and modifications are intended to be suggested within this application, and are therefore within the spirit and scope of the exemplary embodiments of this application.

Meanwhile, the present application uses specific words to describe embodiments of the present application. Reference to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic is associated with at least one embodiment of the present application. Thus, it should be emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various positions in this specification are not necessarily referring to the same embodiment. Furthermore, certain features, structures, or characteristics of one or more embodiments of the present application may be combined as suitable.

Likewise, it should be noted that in order to simplify the presentation disclosed herein and thereby aid in understanding one or more inventive embodiments, various features are sometimes grouped together in a single embodiment, figure, or description thereof. This method of disclosure, however, is not intended to imply that more features than are presented in the claims are required for the subject application. Indeed, less than all of the features of a single embodiment disclosed above.

In some embodiments, numbers describing the components, number of attributes are used, it being understood that such numbers being used in the description of embodiments are modified in some examples by the modifier "about," approximately, "or" substantially. Unless otherwise indicated, "about," "approximately," or "substantially" indicate that the number allows for a 20% variation. Accordingly, in some embodiments, numerical parameters set forth in the specification and claims are approximations that may vary depending upon the desired properties sought to be obtained by the individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and employ a method for preserving the general number of digits. Although the numerical ranges and parameters set forth herein are approximations that may be employed in some embodiments to confirm the breadth of the range, in particular embodiments, the setting of such numerical values is as precise as possible.

For each patent, patent application publication, and other material, such as articles, books, specifications, publications, documents, etc., cited in this application, the entire contents of which are hereby incorporated by reference into this application, except for the application history documents which are inconsistent or conflict with the contents of this application, and for documents which have limited the broadest scope of the claims of this application (currently or hereafter attached to this application). It is noted that the descriptions, definitions, and/or terms used in the subject matter of this application are subject to such descriptions, definitions, and/or terms if they are inconsistent or conflicting with such descriptions, definitions, and/or terms.

The foregoing has described in detail an ammeter and a power distribution cabinet provided in the embodiments of the present application, and specific examples have been applied to illustrate the principles and embodiments of the present utility model, where the foregoing examples are only for aiding in understanding the method and core idea of the present utility model; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present utility model, the present description should not be construed as limiting the present utility model.

Claims (12)

1. An electricity meter, comprising:

the host module is provided with a power supply wiring part, a communication wiring part and a three-phase voltage wiring part;

a plurality of multi-loop metering modules, each of the multi-loop metering modules configured to meter single-phase power or multi-phase power, and the multi-loop metering modules metering single-phase power and the multi-loop metering modules metering multi-phase power are arbitrarily combined;

the multi-loop metering modules are sequentially connected in series, and the multi-loop metering modules positioned at the head end of the series connection are connected with the power connection part, the communication connection part and the three-phase voltage connection part, so that each multi-loop metering module indirectly or directly receives a power signal, a communication signal and a three-phase voltage signal.

2. The electricity meter of claim 1, wherein a plurality of said multi-loop metering modules comprises a plurality of single-phase multi-loop metering modules;

the single-phase multi-loop metering module is configured to meter a single-phase power supply, and a plurality of the single-phase multi-loop metering modules are sequentially connected in series.

3. The electricity meter of claim 2, wherein a plurality of said multi-circuit metering modules further comprises at least one multi-phase multi-circuit metering module;

the multi-phase multi-loop metering module is configured to meter a multi-phase power source, and the multi-phase multi-loop metering module is connected in series between any adjacent single-phase multi-loop metering modules.

4. The electricity meter of claim 1, wherein a plurality of said multi-circuit metering modules comprises a plurality of multi-phase multi-circuit metering modules;

the multi-phase multi-loop metering module is configured to meter a multi-phase power source, and a plurality of the multi-phase multi-loop metering modules are sequentially connected in series.

5. An electricity meter as in claim 4, wherein a plurality of said multi-loop metering modules further comprises at least one single-phase multi-loop metering module;

the single-phase multi-loop metering module is configured to meter a single-phase power source, and the single-phase multi-loop metering module is connected in series between any adjacent multi-phase multi-loop metering modules.

6. An electricity meter as claimed in claim 3 or claim 5, wherein a plurality of said multi-circuit metering modules are arranged in an array, said multi-circuit metering modules of the same row being serially connected in turn;

the ammeter further comprises a switching module and a switching flat cable, wherein the switching module is connected with the multi-loop metering module which is arranged in the same row and at the tail end of the multi-loop metering module;

one end of the switching flat cable is connected with the switching module of the upper row, and the other end of the switching flat cable is connected with the multi-loop metering module of the lower row and the arrangement head end.

7. The meter of claim 6, wherein the switch module has a sixth interface and a seventh interface;

third buckles are arranged on two opposite sides of the sixth interface; and/or

And third buckles are arranged on two opposite sides of the seventh interface.

8. An electricity meter as in claim 3 or 5, wherein said single-phase multi-loop metering module has a second interface and a fourth interface, said second interface and said fourth interface being located on opposite sides of said single-phase multi-loop metering module, respectively;

the two opposite sides of the second interface are provided with first clamping grooves, the two opposite sides of the fourth interface are provided with first buckles, and the first buckles correspond to the first clamping grooves.

9. The electricity meter of claim 8, wherein said multiphase, multi-loop metering module has a third interface and a fifth interface, said third interface and said fifth interface being located on opposite sides of said multiphase, multi-loop metering module, respectively;

the two opposite sides of the third interface are provided with second clamping grooves, and the two opposite sides of the fifth interface are provided with second buckles;

the second clamping buckle corresponds to the first clamping groove, and the second clamping groove corresponds to the first clamping buckle.

10. The electricity meter of claim 1, wherein the multi-circuit metering module has a threaded aperture therethrough and a mounting chute;

the threading hole extends along a first direction, the installation chute extends along a second direction, and the first direction is perpendicular to the second direction.

11. An electricity meter as in claim 10, wherein said mounting chute has mounted therein a latch extending in said first direction and a spring extending in said first direction;

one end of the spring is contacted with the clamping block, and the other end of the spring is contacted with the inner side wall of the installation chute so as to drive the clamping block to be clamped with the installation component.

12. A power distribution cabinet comprising an electricity meter according to any one of claims 1 to 11.