CN217954719U - School table frock structure and system - Google Patents
School table frock structure and system Download PDFInfo
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- CN217954719U CN217954719U CN202222270374.8U CN202222270374U CN217954719U CN 217954719 U CN217954719 U CN 217954719U CN 202222270374 U CN202222270374 U CN 202222270374U CN 217954719 U CN217954719 U CN 217954719U
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Abstract
The utility model provides a school table frock structure and system, which relates to the technical field of electric energy meter school table, comprising a structure shell, a flat cable connecting pin, an isolation RS485 module and an aviation head female head, wherein the flat cable connecting pin, the isolation RS485 module and the aviation head female head are arranged in the structure shell; the flat cable connecting contact pin is connected with the isolation RS485 module, and the isolation RS485 module is connected with the aviation head female head; the flat cable connecting contact pin is used for connecting a target electric energy meter; the isolation RS485 module is used for performing meter calibration operation on the target electric energy meter; the aircraft head female head is used for being connected with an electric energy meter calibration table, so that the technical problem that the low-cost electric energy meter needs to consume higher cost in the meter calibration process is solved.
Description
Technical Field
The utility model belongs to the technical field of the technique of electric energy meter school table and specifically relates to a school table frock structure and system are related to.
Background
In recent years, the application field of smart meters has become more widespread, and besides a large number of procurement applications of power grid companies, various industries such as commercial properties, municipal buildings, schools, hospitals, industrial enterprises, precision manufacturing, traffic infrastructures, data centers, and communications have a large number of applications. And the demand of many commercial self-purchase markets for electric energy meters is inconsistent. Many markets only require metering and display functions, and do not require communication of electric energy meters. But the communication functions such as 485 and the like are removed, the electric energy meter cannot be corrected by software compensation, and the error can hardly meet the measurement standard and the requirement of a client.
For such electric energy meters with lower cost, in the prior art, compensation and calibration are usually performed by manually adjusting parameters of a hardware sampling circuit of each electric energy meter, so that the error requirement is met. This process is very loaded down with trivial details, and the operation workman need adjust resistance or capacitance value repeatedly to ensure that the electric energy meter can both satisfy the error requirement in every electric current specification, and the cost of labor and the time cost of school table are very big, are not conform to the cost expectation of electric energy meter.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a school table frock structure and system to alleviated low-cost electric energy meter and need consume higher cost's technical problem at school table in-process.
In a first aspect, an embodiment of the utility model provides a school table frock structure, include: the structure comprises a structure shell, and a flat cable connecting contact pin, an isolation RS485 module and an aviation head female head which are arranged in the structure shell;
the flat cable connecting contact pin is connected with the isolation RS485 module, and the isolation RS485 module is connected with the aviation head female head;
the flat cable connecting contact pin is used for connecting a target electric energy meter; the isolation RS485 module is used for performing meter calibration operation on the target electric energy meter; the aircraft head female head is used for being connected with an electric energy meter calibration platform.
In combination with the first aspect, an embodiment of the present invention provides a first possible implementation manner of the first aspect, in which the flat cable connection pin includes a double-ended pin and a flat cable for connecting the double-ended pin.
In combination with the first aspect, an embodiment of the present invention provides a second possible implementation manner of the first aspect, wherein one end of the flat cable connection pin is welded to the isolation RS485 module, and the other end of the flat cable connection pin is inserted into the signal line interface of the target electric energy meter.
In combination with the first aspect, an embodiment of the present invention provides a third possible implementation manner of the first aspect, where the flat cable includes multiple colors, and the flat cables of the multiple colors are used to distinguish the signal line interfaces.
In combination with the first aspect, an embodiment of the present invention provides a fourth possible implementation manner of the first aspect, wherein the isolation RS485 module is further configured to isolate the power supply of the electric energy meter calibration stand.
In combination with the first aspect, an embodiment of the present invention provides a fifth possible implementation manner of the first aspect, wherein the aircraft head is connected with the RS485 communication interface of the electric energy meter calibration stand.
In combination with the first aspect, an embodiment of the present invention provides a sixth possible implementation manner of the first aspect, wherein the aircraft head includes four aircraft head interfaces, and the interface signals are respectively adapted to the interface signals output by the isolation RS485 module.
In combination with the first aspect, an embodiment of the present invention provides a seventh possible implementation manner of the first aspect, where each of the aircraft head interfaces is a 4-core aircraft head interface.
With reference to the first aspect, an embodiment of the present invention provides an eighth possible implementation manner of the first aspect, where the structural casing includes a flat cable pin interface and the 4-core aircraft head interface.
In a second aspect, the embodiment of the present invention further provides a meter calibrating tool system, including any one of the above meter calibrating tool structures, further including a target electric energy meter and an electric energy meter calibrating table connected to the meter calibrating tool structure.
The embodiment of the utility model provides a school table frock structure and system, through the school table frock structure of external arrangement electric energy meter, realize the cost control of target electric energy meter school table, and the electric energy meter accuracy of results; the meter correcting tool structure is connected with a target electric energy meter through a flat cable connecting contact pin, the meter correcting tool structure is connected with an electric energy meter correcting platform through an aviation head female head, meter correcting operation of the target electric energy meter is achieved through an isolation RS485 module in the meter correcting tool structure, and high efficiency and low cost of the electric energy meter correcting process are guaranteed.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is an application schematic diagram of a structure of a meter calibrating tool provided in an embodiment of the present invention;
fig. 2 is a schematic view of a flat cable connection pin according to an embodiment of the present invention;
fig. 3 is a schematic circuit structure diagram of an isolated RS485 module according to an embodiment of the present invention;
fig. 4 is a schematic view of a structural housing according to an embodiment of the present invention;
fig. 5 is a schematic view of a 4-core aircraft nose socket provided by an embodiment of the present invention.
Icon: 1-double-head pin insertion; 2-flat cable.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The cost of the existing electric energy meter is higher if an RS485 communication function circuit is arranged in the electric energy meter; if the communication function is not set, the electric energy meter needs to be calibrated to avoid larger error results. In addition, the labor and money costs required in the meter calibration process are also high, and the requirement of low cost of the electric energy meter is not met.
Based on this, the embodiment of the utility model provides a pair of school table frock structure and system to alleviated low-cost electric energy meter and need consume higher cost's technical problem at school table in-process.
The following is a detailed description by way of example.
Fig. 1 is an application schematic diagram of a meter calibrating tool structure provided by an embodiment of the present invention.
Referring to fig. 1, the structure of the meter calibrating tool comprises: the structure comprises a structure shell, and a flat cable connecting contact pin, an isolation RS485 module and an aviation head female head which are arranged in the structure shell;
the flat cable connecting contact pin is connected with the isolation RS485 module, and the isolation RS485 module is connected with the aviation head female head;
the flat cable connecting contact pin is used for connecting a target electric energy meter; the isolation RS485 module is used for performing meter calibration operation on the target electric energy meter; the aviation head female head is used for being connected with an electric energy meter calibration stand.
In the preferred embodiment of practical application, the cost control of the target electric energy meter calibration and the result accuracy of the electric energy meter are realized through a meter calibration tool structure externally arranged on the electric energy meter; the meter correcting tool structure is connected with a target electric energy meter through a flat cable connecting contact pin, the meter correcting tool structure is connected with an electric energy meter correcting platform through an aviation head female head, meter correcting operation of the target electric energy meter is achieved through an isolation RS485 module in the meter correcting tool structure, and high efficiency and low cost of the electric energy meter correcting process are guaranteed.
In some embodiments, the aviation head female head is connected with a 4-core aviation head male head of the electric energy meter calibration stand through a 4-core interface, and the 4-core aviation head male head can be understood as an RS485 communication interface.
In some embodiments, the aircraft header comprises four aircraft header interfaces, each of the aircraft header interfaces is a 4-core aircraft header interface, and the aircraft header interfaces are respectively adapted to the interface signals output by the isolation RS485 module.
As shown in fig. 3, the interface signal output by the isolated RS485 module includes G485, B, A, V; each interface signal corresponds to a 4-core aircraft head interface, and each 4-core aircraft head interface can be understood to include 1, 2, 3, 4, and four-core interfaces, as shown in fig. 5.
In some embodiments, the isolation RS485 module is further configured to perform power isolation from the calibration stand of the electric energy meter.
It should be noted that the isolation RS485 module is a PCBA as a key unit for completing communication, and refer to fig. 3. In order to isolate the electric energy meter calibration tool structure from a power supply inside the electric energy meter calibration table body and reduce the electrostatic risk caused by manual contact, the isolation RS485 module can use an optical coupling isolation module.
In some embodiments, as shown in fig. 2, the flex connector includes a double-ended pin 1 and a flex 2 for connecting the double-ended pin.
As an optional embodiment, one end of the flat cable connecting pin is welded on the isolation RS485 module, and the other end of the flat cable connecting pin is plugged on a signal line interface of the target electric energy meter, so as to perform a meter calibration operation on the target electric energy meter.
The power meter comprises 4 signal line interfaces of VDD, TXD, RXD and GND.
In some embodiments, the flat cable 2 may include a plurality of colors, the flat cables 2 of the plurality of colors are used for distinguishing the signal line interfaces, and the flat cables 2 may be customized in color to distinguish the interface order. Illustratively, the black bus and the red bus can be used to distinguish different signal line interfaces to be accessed as shown in fig. 2.
In some embodiments, as shown in fig. 4, the structural shell includes a flex pin interface and the 4-core aeronautical header interface.
The cross section of the structural shell is consistent with that of each 4-core aviation head interface, and signals G485 and B, A, V485 are respectively arranged on each 4-core aviation head interface from left to right in the sequence of signal access.
The embodiment of the utility model provides a can cooperate the RS485 school table frock of current school table body to use, according to the school table frock structure that this application provided, treat that the target electric energy meter of school table need not to possess RS485 communication circuit, only need MCU chip or measurement SOC chip to possess a set of UART communication interface and can accomplish software compensation school table to this satisfies different customers and to the error requirement.
In some embodiments, the embodiment of the utility model provides a school table frock system is still provided, include as above any one school table frock structure, still include with the target electric energy meter and the electric energy meter school table that school table frock structure is connected.
The embodiment of the utility model provides a school table frock system has the same technical characteristic with the school table frock result that above-mentioned embodiment provided, so also can solve the same technical problem, reach the same technological effect.
In the description of the embodiments of the present invention, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions when actually implemented, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed coupling or direct coupling or communication connection between each other may be through some communication interfaces, indirect coupling or communication connection between devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solution of the present invention, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still modify or easily conceive of changes in the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein.
Claims (10)
1. The utility model provides a school table frock structure which characterized in that includes: the structure comprises a structure shell, and a flat cable connecting contact pin, an isolation RS485 module and an aviation head female head which are arranged in the structure shell;
the flat cable connecting contact pin is connected with the isolation RS485 module, and the isolation RS485 module is connected with the aviation head female head;
the flat cable connecting contact pin is used for connecting a target electric energy meter; the isolation RS485 module is used for performing meter calibration operation on the target electric energy meter; the aviation head female head is used for being connected with an electric energy meter calibration platform.
2. The structure of a calibration fixture according to claim 1, wherein the flat cable connecting pins comprise double-ended pins and a flat cable for connecting the double-ended pins.
3. A meter calibrating tool structure according to claim 2, wherein one end of the flat cable connecting pin is welded to the isolating RS485 module, and the other end of the flat cable connecting pin is plugged to a signal line interface of the target electric energy meter.
4. The structure of a school table frock of claim 3, characterized in that, the winding displacement includes multiple colours, and the winding displacement of multiple colours is used for distinguishing the signal line interface.
5. The structure of a meter calibrating tool of claim 1, wherein the isolation RS485 module is further used for power isolation from the electric energy meter calibrating table.
6. A meter calibrating tool structure according to claim 1, wherein the aircraft head female head is connected with an RS485 communication interface of the electric energy meter calibrating table.
7. The structure of a meter calibrating tool of claim 6, wherein the aircraft head female head comprises four aircraft head interfaces which are respectively adapted to interface signals output by the isolation RS485 module.
8. The structure of a calibration fixture according to claim 7, wherein each said aircraft head interface is a 4-core aircraft head interface.
9. The structure of a school table frock of claim 8, characterized in that, the structure shell includes winding displacement contact pin interface and 4 core aviation first interface.
10. A meter calibration tooling system, characterized by comprising the meter calibration tooling structure of any one of claims 1-9, and further comprising a target electric energy meter and an electric energy meter calibration stand connected with the meter calibration tooling structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222270374.8U CN217954719U (en) | 2022-08-24 | 2022-08-24 | School table frock structure and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222270374.8U CN217954719U (en) | 2022-08-24 | 2022-08-24 | School table frock structure and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217954719U true CN217954719U (en) | 2022-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222270374.8U Active CN217954719U (en) | 2022-08-24 | 2022-08-24 | School table frock structure and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217954719U (en) |
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2022
- 2022-08-24 CN CN202222270374.8U patent/CN217954719U/en active Active
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