A test connection system for plug-in electric energy meter

Abstract

The present invention discloses a test connection system for a plug-in electric energy meter, comprising: a plug-in crimping tool, a near-infrared communication converter, a photoelectric pulse sampler and an electric energy meter calibration station; the plug-in crimping tool is electrically connected to the electric energy meter calibration station and the plug-in electric energy meter; one end of the near-infrared communication converter is communicatively connected to the electric energy meter calibration station, and the other end is arranged in the plug-in crimping tool and is communicatively connected to the plug-in electric energy meter, and is used for data communication connection between the electric energy meter calibration station and the plug-in electric energy meter; the photoelectric pulse sampler is communicatively connected to the electric energy meter calibration station, and is used for obtaining the optical pulse signal emitted by the plug-in electric energy meter and transmitting it to the electric energy meter calibration station; the electric energy meter calibration station is provided with a plurality of calibration table position units, and the plurality of calibration table position units are all electrically connected to the plug-in crimping tool, and are used for functional calibration of the plug-in electric energy meter. The present invention has a simple structure, is easy to use, can quickly test the plug-in electric energy meter, and improves production efficiency and reliability.

Description

Technical Field

[0001] The invention relates to the technical field of electric energy meter testing, and in particular to a test connection system for a plug-in electric energy meter. Background Art

[0002] After the electric energy meter is assembled, it needs to be wired and tested to see if it is qualified. However, the plug-in electric energy meter is different from the traditional terminal electric energy meter. When in use, it is not directly connected to the external wire, but needs to be plugged into the matching socket. The traditional electric energy meter test device is connected through the terminal and tests the electric energy meter, but the traditional electric energy meter test device is not suitable for the test of plug-in electric energy meters.

[0003] Therefore, there is an urgent need for a test system that can calibrate plug-in electric energy meters through traditional electric energy meter testing devices to improve the production efficiency and reliability of plug-in electric energy meters. Summary of the invention

[0004] The present invention aims to provide a device that can realize rapid testing of plug-in electric energy meters to solve the problem that existing electric energy meter testing devices cannot use plug-in electric energy meters. The present invention can quickly calibrate plug-in electric energy meters through traditional electric energy meter testing devices, and has a simple structure, is easy to use, saves costs, and improves the production efficiency and reliability of plug-in electric energy meters.

[0005] In order to achieve the above-mentioned purpose, the basic scheme of the present invention is as follows: a test connection system for a plug-in electric energy meter, comprising: a plug-in crimping tool, a near-infrared communication converter, a photoelectric pulse sampler and an electric energy meter calibration station; the plug-in crimping tool is electrically connected to the electric energy meter calibration station and the plug-in electric energy meter, and is used to connect the electric energy meter calibration station and the plug-in electric energy meter; one end of the near-infrared communication converter is communicatively connected to the electric energy meter calibration station, and the other end is arranged in the plug-in crimping tool and is communicatively connected to the plug-in electric energy meter, and is used for data communication connection between the electric energy meter calibration station and the plug-in electric energy meter; the photoelectric pulse sampler is communicatively connected to the electric energy meter calibration station, and is used to obtain the optical pulse signal emitted by the plug-in electric energy meter and transmit it to the electric energy meter calibration station; the electric energy meter calibration station is provided with a plurality of calibration table position units, and the plurality of calibration table position units are all electrically connected to the plug-in crimping tool, so as to perform functional calibration on the plug-in electric energy meter.

[0006] Furthermore, the plug-in and crimping tooling includes a substrate, a near-infrared communication interface, a connecting jack, a tightening wrench and a copper sleeve; the near-infrared communication interface, the connecting jack, the tightening wrench and the copper sleeve are all arranged on the substrate; the near-infrared communication interface is connected to the plug-in electric energy meter, and the connection between the near-infrared communication converter and the plug-in electric energy meter is realized through the near-infrared communication interface; there are seven connecting jacks, which correspond one-to-one to the copper connecting pieces of the plug-in electric energy meter, and the connection between the plug-in and crimping tooling and the plug-in electric energy meter is realized by inserting the copper connecting piece of the electric energy meter into the connecting jack; the tightening wrench is used to tighten the copper connecting piece of the electric energy meter inserted into the connecting jack; the copper sleeve is arranged at the bottom of the plug-in and crimping tooling, and is used to connect to the inspection meter unit.

[0007] Furthermore, a baffle and a pressing plate are provided in the connecting hole, and the baffle and the pressing plate are both elastic copper plates; a gap is provided between the baffle and the pressing plate, and the copper connecting plate of the electric meter is inserted into the connecting hole through the gap and contacts with the baffle and the pressing plate; the pressing plate is provided with a connecting part, and the connecting part is connected to the tightening wrench through a connecting rod, and the pressing plate is pressed toward or away from the baffle by turning the tightening wrench.

[0008] Furthermore, the connecting jack includes an A-phase current outlet, an A-phase current inlet, a B-phase current outlet, a B-phase current inlet, a C-phase current outlet, a C-phase current inlet and a neutral line interface.

[0009] Furthermore, it also includes a base, which is installed on the verification table unit and is used to fix the photoelectric pulse sampler. By aligning the sampling window of the photoelectric pulse sampler with the optical pulse output port of the plug-in electric energy meter, the optical pulse signal emitted by the plug-in electric energy meter is obtained.

[0010] Furthermore, the verification table unit is provided with a near-infrared communication interface, a photoelectric pulse interface, a table current copper rod and a crimping wrench; the near-infrared communication interface is used to connect to the near-infrared communication converter; the photoelectric pulse interface is used to connect to the photoelectric pulse sampler; the table current copper rod is used to connect to the copper sleeve of the plug-in crimping tooling; the crimping wrench is used to tighten the connection between the table current copper rod and the copper sleeve.

[0011] Furthermore, the platform current copper rod and the copper sleeve of the plug-in and crimping tooling are each provided with seven, and they correspond one to one.

[0012] Compared with the prior art, the advantages and beneficial effects of the present invention are as follows: the electrical connection between the electric energy meter calibration station and the plug-in electric energy meter is realized through the plug-in crimping tooling; one end of the near-infrared communication converter is communicatively connected to the electric energy meter calibration station, and the other end is arranged in the plug-in crimping tooling and is communicatively connected to the plug-in electric energy meter, so as to realize the data communication connection between the electric energy meter calibration station and the plug-in electric energy meter; the photoelectric pulse sampler is communicatively connected to the electric energy meter calibration station, so as to obtain the optical pulse signal emitted by the plug-in electric energy meter and transmit it to the electric energy meter calibration station; the electric energy meter calibration station is provided with a plurality of calibration table position units, and the plurality of calibration table position units are all electrically connected to the plug-in crimping tooling, so as to perform functional calibration on the plug-in electric energy meter; the plug-in crimping tooling can be compatible with the traditional electric energy meter calibration station, so as to facilitate production management and quickly adapt to the production of different types of electric energy meters, and there is no need to modify or replace the calibration station; the structure is simple and easy to use; the plug-in electric energy meter can be quickly tested, so as to improve the production efficiency and reliability of the plug-in electric energy meter. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a test connection system for a plug-in electric energy meter in one embodiment;

[0014] Figure 2 for Figure 1 Schematic diagram of the structure of the plug-in crimping tooling;

[0015] Figure 3 for Figure 1 Schematic diagram of the positional relationship between the Zhongguang photoelectric pulse sampler and the plug-in electric energy meter;

[0016] Figure 4 for Figure 1 Schematic diagram of the structure of the verification epitope unit;

[0017] Figure 5 The present invention is a schematic diagram of current flow in a test connection system for a plug-in electric energy meter in one embodiment.

[0018] In the accompanying drawings, there are plug-in and crimping tooling 10, substrate 11, near-infrared communication interface 12, connecting hole 13, baffle 131, pressing piece 132, tightening wrench 14, copper sleeve 15, near-infrared communication converter 20, photoelectric pulse sampler 30, calibration table unit 40, near-infrared communication interface 41, photoelectric pulse interface 42, table current copper rod 43, crimping wrench 44, plug-in electric energy meter 90, and electric meter copper connecting piece 91. DETAILED DESCRIPTION

[0019] In order to make the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] like Figures 1 to 5 As shown, a test connection system for a plug-in electric energy meter is provided, comprising: a plug-in crimping tool 10, a near-infrared communication converter 20, a photoelectric pulse sampler 30 and an electric energy meter calibration station; the plug-in crimping tool 10 is electrically connected to the electric energy meter calibration station and the plug-in electric energy meter 90, and is used to connect the electric energy meter calibration station and the plug-in electric energy meter 90; one end of the near-infrared communication converter 20 is communicatively connected to the electric energy meter calibration station, and the other end is arranged in the plug-in crimping tool 10 and is communicatively connected to the plug-in electric energy meter 90, and is used for data communication connection between the electric energy meter calibration station and the plug-in electric energy meter 90; the photoelectric pulse sampler 30 is communicatively connected to the electric energy meter calibration station, and is used to obtain the optical pulse signal emitted by the plug-in electric energy meter 90 and transmit it to the electric energy meter calibration station; the electric energy meter calibration station is provided with a plurality of calibration table position units 40, and the plurality of calibration table position units 40 are all electrically connected to the plug-in crimping tool 10, so as to perform functional calibration on the plug-in electric energy meter 90.

[0021] In this embodiment, the electric energy meter calibration station is electrically connected to the plug-in electric energy meter 90 through the plug-in crimping tool 10. One end of the near-infrared communication converter 20 is connected to the electric energy meter calibration station for communication, and the other end is arranged in the plug-in crimping tool 10 and connected to the plug-in electric energy meter 90 for communication, so as to realize the data communication connection between the electric energy meter calibration station and the plug-in electric energy meter 90. The photoelectric pulse sampler 30 is connected to the electric energy meter calibration station for communication, and is used to obtain the optical pulse signal emitted by the plug-in electric energy meter 10 and transmit it to the electric energy meter calibration station. The test bench is provided with a plurality of calibration table units 40, and the plurality of calibration table units 40 are electrically connected to the plug-in crimping tooling 10, and are used for performing functional calibration on the plug-in electric energy meter 90. The plug-in crimping tooling 10 can be compatible with the traditional electric energy meter calibration bench, which is convenient for production management and can quickly adapt to the production of different types of electric energy meters. There is no need to modify or replace the electric energy meter calibration bench, which saves costs. The test bench has a simple structure and is easy to use. The plug-in electric energy meter 90 can be quickly tested, thereby improving the production efficiency and reliability of the plug-in electric energy meter 90.

[0022] Specifically, the main functions of the plug-in electric energy meter 90 are metering and communication functions. The metering function is to output optical pulse signals for metering parameter verification; the communication function is near-infrared communication, which is used for data communication between the electric energy meter and external devices. Since the plug-in electric energy meter 90 is different from the traditional terminal type electric energy meter, it is not directly connected to the electric energy meter verification station during verification, but is indirectly connected to the electric energy meter verification station through the matching plug-in crimping tool 10, so that the functional test of the plug-in electric energy meter 90 can be realized under the premise of being compatible with the traditional electric energy meter verification station, saving costs.

[0023] like Figure 2 As shown, the plug-in crimping tool 10 includes a substrate 11, a near-infrared communication interface 12, a connecting hole 13, a tightening wrench 14 and a copper sleeve 15; the near-infrared communication interface 12, the connecting hole 13, the tightening wrench 14 and the copper sleeve 15 are all arranged on the substrate 11; the near-infrared communication interface 12 is connected to the plug-in electric energy meter 90, and the connection between the near-infrared communication converter 20 and the plug-in electric energy meter 90 is realized through the near-infrared communication interface 12; there are seven connecting holes 13, which correspond one to one with the copper connecting pieces 91 of the plug-in electric energy meter 90, and the connection between the plug-in crimping tool 10 and the plug-in electric energy meter 90 is realized by inserting the copper connecting piece 91 of the electric energy meter into the connecting hole 13; the tightening wrench 14 is used to tighten the copper connecting piece 91 of the electric energy meter inserted into the connecting hole 13; the copper sleeve 15 is arranged at the bottom of the plug-in crimping tool for connecting to the inspection meter unit 40.

[0024] Specifically, the plug-in crimping tool 10 is an intermediate device between the plug-in electric energy meter 90 and the inspection meter unit 40 . The plug-in crimping tool 10 can realize electrical connection and communication connection between the plug-in electric energy meter 90 and the inspection meter unit 40 , which facilitates the calibration of the plug-in electric energy meter 90 .

[0025] Specifically, a near-infrared communication interface 12 is provided on the substrate 11, which is used to connect to the near-infrared communication window of the plug-in electric energy meter 90, to realize the data communication connection between the plug-in electric energy meter 90 and the plug-in crimping tooling 10, and to realize the data communication connection with the inspection meter unit 40 through the plug-in crimping tooling 10.

[0026] Correspondingly, the plug-in electric energy meter 90 is provided with an electric meter copper connection piece 91 corresponding to the connecting hole 13, and is provided with a corresponding near-infrared communication window for connecting with the near-infrared communication converter 20. The electric meter copper connection piece 91 can be used for the electrical connection between the plug-in electric energy meter 90 and the plug-in crimping tool 10.

[0027] Specifically, the substrate 11 is also provided with a connecting hole 13, which corresponds to the position of the electric meter copper connecting piece 91 of the plug-in crimping electric energy meter 90. By inserting the electric meter copper connecting piece 91 into the connecting hole 13, the electrical connection between the plug-in crimping tool 10 and the plug-in crimping electric energy meter 90 is achieved.

[0028] Specifically, a tightening wrench 14 is provided on one side of the base plate 11 , and the tightening wrench 14 can be used to tighten the meter copper connecting piece 91 inserted into the connecting hole 13 to ensure that the plug-in type energy meter 90 can be connected to the plug-in crimping tooling 10 .

[0029] Specifically, a copper sleeve 15 is provided at the bottom of the plug-in crimping tool 10 for electrically connecting to the inspection table unit 40 , thereby realizing electrical connection between the plug-in crimping tool 10 and the inspection table unit 40 .

[0030] Among them, a baffle 131 and a pressing plate 132 are provided in the connecting hole 13, and the baffle 131 and the pressing plate 132 are both elastic copper plates, and a gap is provided between the baffle 131 and the pressing plate 132. The copper connecting plate 91 of the electric meter is inserted into the connecting hole through the gap and contacts with the baffle 131 and the pressing plate 132; the pressing plate 132 is provided with a connecting part, and the connecting part is connected to the tightening wrench 14 through a connecting rod, and the pressing plate 132 is pressed toward or away from the baffle 131 by turning the tightening wrench 14.

[0031] Specifically, an elastic copper sheet is arranged in the connecting hole 13, including a baffle 131 and a pressing sheet 132, and a gap is arranged between the two to facilitate the insertion of the meter copper connecting sheet 91. The connection between the plug-in electric energy meter 90 and the plug-in crimping tooling 10 is achieved through the contact between the meter copper connecting sheet 91 and the baffle 131 and the pressing sheet 132.

[0032] In order to tighten the copper connecting piece 91 of the electric meter by means of the tightening wrench 14 and ensure that the plug-in electric energy meter 90 is connected to the plug-in crimping tooling 10, the baffle 131 and the pressing piece 132 are both made of elastic copper sheets, and the connecting parts of all the pressing pieces 132 are connected to one end of the connecting rod, and the other end of the connecting rod is connected to the tightening wrench 14. When it is necessary to test the plug-in electric energy meter 90, the pressing piece 132 can be controlled by the tightening wrench 14 to move toward the baffle 131 to ensure that the copper connecting piece 91 of the electric meter is in close contact with the pressing piece 131 and the baffle 132; after the test is completed, the tightening wrench is pulled in the opposite direction to loosen the copper connecting piece 91 of the electric meter, so that the plug-in electric energy meter 90 can be removed from the plug-in crimping tooling 10, so as to facilitate the replacement of the plug-in electric energy meter to be tested.

[0033] The connecting jack 13 includes an A-phase current outlet, an A-phase current inlet, a B-phase current outlet, a B-phase current inlet, a C-phase current outlet, a C-phase current inlet and a neutral line interface.

[0034] Specifically, the seven connecting holes 13 are respectively A-phase current outlet, A-phase current inlet, B-phase current outlet, B-phase current inlet, C-phase current outlet, C-phase current inlet and neutral line interface, and correspond one-to-one to the plug-in electric energy meter 90, realizing the electrical connection between the plug-in crimping tool 10 and the plug-in electric energy meter 90, and facilitating the electrical connection between the plug-in electric energy meter 90 and the verification table unit 40 through the plug-in crimping tool 10, thereby realizing the functional verification of the plug-in electric energy meter 90.

[0035] Among them, the near-infrared communication converter 20 is used for the data communication between the calibration meter unit 40 and the plug-in electric energy meter 90. One end of the near-infrared communication converter 20 is an infrared transceiver head, and is installed inside the plug-in crimping tooling 10, corresponding to the position of the near-infrared communication window of the plug-in electric energy meter 90, and is used to connect the plug-in electric energy meter; the other end is a connection interface, and is connected to the calibration meter unit 40 through the connection interface, thereby realizing the data communication between the calibration meter unit 40 and the plug-in electric energy meter 90. Therefore, when the plug-in electric energy meter 90 is tested, the data communication connection between the plug-in electric energy meter 90 and the calibration meter unit 40 can be realized through the connection between the plug-in electric energy meter 90 and the plug-in crimping tooling 10, and the distance is within 1 cm, ensuring good communication, and there is no need to manually adjust the near-infrared communication converter, which is easy to use.

[0036] The photoelectric pulse sampler 30 is used to obtain the optical pulse signal emitted by the plug-in electric energy meter, and to perform error inspection and calibration of metering parameters such as start-up and creep according to the optical pulse signal. The base of the photoelectric pulse sampler 30 is fixedly mounted on the calibration meter unit 40. During the inspection process, after the plug-in electric energy meter 90 is installed, the sampling window of the photoelectric pulse sampler 30 needs to be aligned with the optical pulse output port of the plug-in electric energy meter 90, so as to realize the photoelectric pulse sampling of the plug-in electric energy meter 90.

[0037] At the same time, the plug-in electric energy meter 90 is provided with a photoelectric pulse output port. When performing photoelectric pulse sampling, the photoelectric pulse sampler 30 needs to correspond to the photoelectric pulse output port to facilitate the photoelectric pulse sampler 30 to perform photoelectric pulse sampling.

[0038] like Figure 4 As shown, the calibration table unit 40 is provided with a near-infrared communication interface 41, a photoelectric pulse interface 42, a table current copper rod 43 and a crimping wrench 44; the near-infrared communication interface 41 is used to connect with the near-infrared communication converter 20; the photoelectric pulse interface 42 is used to connect with the photoelectric pulse sampler 30; the table current copper rod 43 is used to connect with the copper sleeve 15 of the plug-in crimping tool 10; the crimping wrench 44 is used to tighten the connection between the table current copper rod 43 and the copper sleeve 15.

[0039] Specifically, the electric energy meter calibration station is used to monitor the performance of the electric energy meter such as the measurement error, and is the most basic equipment for testing the electric energy meter. All components used in the present invention need to be connected to the electric energy meter calibration station for use. An electric energy meter calibration station can be provided with multiple calibration table units 40, for example, 20 calibration table units, each of which has the same function, and can test 20 plug-in electric energy meters at the same time.

[0040] Specifically, the check table unit 40 is used to provide the voltage and current connection, communication interface and pulse interface of the plug-in electric energy meter 90, obtain the check parameters of the plug-in electric energy meter 90 based on the above three connection methods, and analyze whether the plug-in electric energy meter 90 is qualified according to the check parameters. A near-infrared communication interface 41 is provided on the check table unit 40, and is connected to the near-infrared communication converter 20 for receiving near-infrared communication data; the photoelectric pulse interface is connected to the photoelectric pulse sampler 30 for obtaining the photoelectric pulse signal sampled by the photoelectric pulse sampler 30; the table current copper rod 43 is provided on the surface of the check table unit 40, which is convenient for connection with the copper sleeve 15 to realize the electrical connection between the check table unit 40 and the plug-in crimping tool 10; a connecting rod is provided in the crimping wrench 44, and the movement of the connecting rod can be controlled by turning the crimping wrench 44, so that the copper sleeve 15 of the plug-in crimping tool 10 is tightly connected to the table current copper rod 43, ensuring that sufficient current can pass without excessive heating.

[0041] It also includes: a base, which is installed on the calibration table unit 40 and is used to fix the photoelectric pulse sampler 30, and align the sampling window of the photoelectric pulse sampler 30 with the optical pulse output port of the plug-in electric energy meter 90 to obtain the optical pulse signal emitted by the plug-in electric energy meter 90.

[0042] Specifically, a base can be set on the verification table unit 40 for fixing the photoelectric pulse sampler 30. After the photoelectric pulse sampler 30 samples the output pulse signal of the plug-in electric energy meter 90, the sampled photoelectric pulse signal is transmitted to the verification table unit 40. The photoelectric pulse signal is analyzed by the verification table unit 40 to determine whether the function of the plug-in electric energy meter 90 is normal.

[0043] There are seven copper rods 43 for the platform current and seven copper sleeves 15 for the plug-in and crimping tooling 10, and they correspond one to one.

[0044] Specifically, in order to correspond to the electric meter copper connection piece 91, the table body current copper rod 43 and the copper sleeve 15 of the plug-in crimping tool 10 are also provided with seven, and the table body current copper rod 43 corresponds to the copper sleeve 15 one by one. Figure 4As shown, the connection of the platform current copper rod 43 can be: No. 1 platform current copper rod is used for A-phase voltage and current input, No. 2 platform current copper rod is used for A-phase voltage and current output, No. 3 platform current copper rod is used for B-phase voltage and current input, No. 4 platform current copper rod is used for B-phase voltage and current output, No. 5 platform current copper rod is used for C-phase voltage and current input, No. 6 platform current copper rod is used for C-phase voltage and current output, and No. 7 platform current copper rod is used to connect the neutral line.

[0045] In one embodiment, when the above system is used to test the communication function and metering function of the plug-in electric energy meter, the following steps are included:

[0046] First, you need to connect the plug-in crimping tooling with the calibration meter unit on the electric energy meter calibration table, put all the copper sleeves into the table current copper rod of the calibration meter unit, and turn the crimping wrench downward to make the copper sleeve of the plug-in crimping tooling tightly connected with the table current copper rod on the calibration meter unit to ensure that a large enough current can pass without excessive heating;

[0047] Secondly, connect the plug-in crimping tooling with the plug-in crimping energy meter: insert the meter copper connecting piece into the connecting jack and make contact with the internal pressing piece and baffle, then turn the tightening wrench to the left to push the pressing piece inside the jack toward the baffle, so as to more tightly contact the meter copper connecting piece with the pressing piece and baffle, ensuring that enough electric energy can pass without excessive heat. At the same time, the plug-in energy meter is connected to the near-infrared communication converter through the near-infrared communication interface of the plug-in crimping tooling;

[0048] Finally, align the sampling window of the photoelectric pulse sampler with the optical pulse output port of the plug-in electric energy meter, calibrate the plug-in electric energy meter through the calibration meter unit, obtain relevant calibration parameters, and determine whether the plug-in electric energy meter is qualified based on the calibration parameters.

[0049] Among them, the plug-in crimping tooling can be fixed differently after being installed on the electricity meter calibration bench. After the inspection of a plug-in electricity meter is completed, the tightening wrench can be turned to the right to loosen the copper connecting piece of the meter inside the connecting jack, remove the plug-in electricity meter, and replace the next plug-in electricity meter to be tested.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0051] The above is only an embodiment of the present invention. The common sense such as the known specific structure and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the invention before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A test connection system for a plug-in electric energy meter, characterized in that: include: Plug-in crimping tooling, near-infrared communication converter, photoelectric pulse sampler and electric energy meter calibration station; The plug-in crimping tool is electrically connected to the electric energy meter calibration table and the plug-in electric energy meter, and is used to connect the electric energy meter calibration table and the plug-in electric energy meter; The plug-in and crimping tooling includes a base plate, a near-infrared communication interface, a connecting jack, a tightening wrench and a copper sleeve; The near infrared communication interface, the connecting jack, the tightening wrench and the copper sleeve are all arranged on the substrate; The near infrared communication interface is connected to the plug-in electric energy meter, and the connection between the near infrared communication converter and the plug-in electric energy meter is realized through the near infrared communication interface; The connecting holes are provided with seven, and correspond to the copper connecting pieces of the plug-in electric energy meter one by one. The connection between the plug-in and plug-in electric energy meter is realized by inserting the copper connecting piece of the electric energy meter into the connecting holes; a baffle and a pressing piece are provided in the connecting holes, and both the baffle and the pressing piece are elastic copper pieces; a gap is provided between the baffle and the pressing piece, and the copper connecting piece of the electric energy meter is inserted into the connecting hole through the gap and contacts with the baffle and the pressing piece; the pressing piece is provided with a connecting part, and the connecting part is connected to the tightening wrench through a connecting rod, and the pressing piece is pressed toward or away from the baffle by turning the tightening wrench; The tightening wrench is used to tighten the copper connecting piece of the electric meter inserted into the connecting hole; The copper sleeve is arranged at the bottom of the plug-in and crimping tooling, and is used to connect with the calibration table unit; One end of the near-infrared communication converter is connected to the electric energy meter calibration station for communication, and the other end is arranged in the plug-in crimping tooling and connected to the plug-in electric energy meter for data communication between the electric energy meter calibration station and the plug-in electric energy meter; The photoelectric pulse sampler is in communication connection with the electric energy meter calibration station, and is used to obtain the optical pulse signal emitted by the plug-in electric energy meter and transmit it to the electric energy meter calibration station; The electric energy meter calibration station is provided with a plurality of calibration table units, and the plurality of calibration table units are electrically connected to the plug-in crimping tooling for performing functional calibration on the plug-in electric energy meter.

2. A test connection system for a pluggable electric energy meter according to claim 1, characterized in that: The connecting jack includes an A-phase current outlet, an A-phase current inlet, a B-phase current outlet, a B-phase current inlet, a C-phase current outlet, a C-phase current inlet and a neutral line interface.

3. A test connection system for a pluggable electric energy meter according to claim 1, characterized in that: It also includes a base, which is installed on the verification table unit and is used to fix the photoelectric pulse sampler. The optical pulse signal emitted by the plug-in electric energy meter is obtained by aligning the sampling window of the photoelectric pulse sampler with the optical pulse output port of the plug-in electric energy meter.

4. A test connection system for a pluggable electric energy meter according to claim 1, characterized in that: The check epitope unit is provided with a second near-infrared communication interface, a photoelectric pulse interface, a platform current copper rod and a crimping wrench; The second near infrared communication interface is used to connect to the near infrared communication converter; The photoelectric pulse interface is used to connect with the photoelectric pulse sampler; The platform current copper rod is used to connect with the copper sleeve of the plug-in crimping tooling; The crimping wrench is used to tighten the connection between the platform current copper rod and the copper sleeve.

5. A test connection system for a pluggable electric energy meter according to claim 4, characterized in that: The platform body current copper rod and the copper sleeves of the plug-in and crimping tooling are both provided with seven, and they correspond one to one.

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