Compatible electric energy meter carrying tray and calibrating device

Abstract

The invention relates to a compatible electric energy meter carrying tray and a calibrating device. The compatible electric energy meter carrying tray comprises a tray bottom plate; the driving assembly is mounted on the tray bottom plate; the wiring assembly is detachably mounted on the tray bottom plate, and the wiring assembly is provided with an electric connection terminal connected with the electric energy meter and is further provided with a plurality of electric connection contact pins parallel to the driving direction of the driving assembly; the electric energy meter positioning assembly is driven by the driving assembly, moves on the tray bottom plate along a specified direction and is provided with a pushing part for pushing the electric energy meter; the movement of the electric energy meter positioning assembly enables the electric energy meter placed on the tray bottom plate to move towards the wiring assembly so as to be connected with the electric connection contact pin in an inserted mode or move away from the wiring assembly so as to be separated from the electric connection contact pin. The meter carrying tray is high in compatibility, can adapt to different types of electric energy meters, is easy to disassemble, is high in connection reliability of the electric energy meters, and can improve the automatic verification efficiency of the electric energy meters.

Description

Technical Field

[0001] The invention belongs to the technical field of electric energy meter calibration, and in particular relates to a compatible electric energy meter loading tray and a calibration device. Background Art

[0002] The present invention relates to the field of electric energy meter detection, and in particular to a meter loading tray with a unified interface for a compatible electric energy meter calibration device.

[0003] In existing technology, different types of energy meters, such as single-phase and three-phase meters, and data collection terminals, exhibit significant structural differences, particularly regarding the number, specifications, and location of wiring. To automate the verification of these meters, existing technologies typically require the design of corresponding automatic wiring connection and disconnection mechanisms based on the type of meter being tested. These specialized mechanisms are then used to design and build dedicated automated verification lines.

[0004] This automated verification line, designed for specific meter types, suffers from a limited scope of application. To cover different meter types, multiple specialized automated verification lines must be designed and built. This not only results in a large number of different automated verification lines but also occupies a significant amount of space, resulting in low overall equipment utilization. This is inconsistent with the current development trend of automated verification (measurement) technology, which pursues flexibility and full compatibility, and is unable to meet the needs of the next generation of automated verification lines.

[0005] Therefore, how to improve the design of the electricity meter tray and the electricity meter calibration device so that it can flexibly adapt to electricity meters of different specifications and meet the compatibility design requirements, thereby improving the work efficiency and equipment utilization of the automated calibration line, is a technical problem that needs to be urgently solved in this field. Summary of the Invention

[0006] Based on the above-mentioned shortcomings and deficiencies in the prior art, one of the objects of the present invention is to at least solve one or more of the above-mentioned problems in the prior art, or to provide a compatible electricity meter tray and calibration device that meets one or more of the above-mentioned requirements.

[0007] In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical solutions: In a first aspect, the present invention provides a compatible electric energy meter tray, comprising: Pallet bottom plate; A drive assembly mounted on the pallet bottom plate; A wiring assembly detachably mounted on the bottom plate of the tray, the wiring assembly being configured with electrical connection terminals connected to the electric energy meter and also being configured with a plurality of electrical connection pins arranged parallel to the driving direction of the driving assembly; An electric energy meter positioning assembly is driven by the driving assembly and moves along a specified direction on the bottom plate of the tray, wherein the electric energy meter positioning assembly has a pushing portion for pushing the electric energy meter; The movement of the electric energy meter positioning assembly enables the electric energy meter placed on the bottom plate of the tray to move toward the wiring assembly to be plugged into the electrical connection pins, or to move away from the wiring assembly to be disengaged from the electrical connection pins.

[0008] As a preferred embodiment, the drive assembly includes: Drive worm; A lead screw connected to the driving worm gear, the lead screw being arranged in a specified direction; A screw follower threadedly connected to the screw, the screw follower being fixedly connected to the electric energy meter positioning assembly; The lead screw follower is driven by the rotation of the lead screw to move in a specified direction, so as to drive the electric energy meter positioning component to move.

[0009] As a further preferred embodiment, the electric energy meter positioning component includes a first electric energy meter positioning component and a second electric energy meter positioning component, and the first electric energy meter positioning component and the second electric energy meter positioning component are respectively arranged on opposite sides of the wiring component along a specified direction; A first screw follower and a second screw follower having opposite thread directions are respectively provided at both ends of the screw; the first screw follower is fixedly connected to the first electric energy meter positioning assembly, and the second screw follower is fixedly connected to the second electric energy meter positioning assembly; The rotation of the lead screw causes the first electric energy meter positioning assembly and the second electric energy meter positioning assembly to move simultaneously in opposite directions along a specified direction, so that the electric energy meter placed on the bottom plate of the tray is connected or disconnected with the electrical connection pins on the wiring assembly at the same time.

[0010] As a preferred embodiment, the wiring assembly is provided with an electric energy meter limit baffle, which is used to limit the electric energy meter to a predetermined position for plugging with the electrical connection pin.

[0011] As a further preferred embodiment, the electric energy meter limit baffle is provided with an introduction slope, which is used to guide the electric energy meter to cooperate with the electrical connection pin.

[0012] As a preferred embodiment, positioning pins are provided on the pallet bottom plate, and positioning holes corresponding to the positioning pins are provided on the wiring assembly. The wiring assembly can be quickly disassembled and assembled with the pallet bottom plate through the cooperation of the positioning pins and the positioning holes.

[0013] As a preferred embodiment, a guide rail arranged along a specified direction is provided on the bottom plate of the tray, and the guide rail is used to guide the electric energy meter positioning assembly to move along the specified direction.

[0014] As a further preferred embodiment, a sliding member is slidably connected to the guide rail, and the sliding member is fixedly connected to the electric energy meter positioning assembly.

[0015] As a further preferred embodiment, the guide rails include two guide rails arranged parallel to each other, and the sliding member is arranged across the two guide rails and is slidably connected to the two guide rails.

[0016] On the other hand, the present invention further provides a compatible electric energy meter calibration device having any of the compatible electric energy meter trays described above.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The compatible electric energy meter loading tray and verification device of the present invention utilizes a wiring assembly that is detachably mounted on the tray base. This wiring assembly can be customized and replaced according to the wiring characteristics of different types of electric energy meters. The assembly can be quickly removed from and installed on the tray base through the cooperation of positioning pins and positioning holes. This allows the same meter loading tray to accommodate electric energy meters of different specifications and types, significantly improving the compatibility of the automated verification line for different electric energy meters and overcoming the shortcomings of the existing dedicated lines, which have a limited scope of application. Furthermore, the drive assembly automatically and quickly drives the electric energy meter positioning assembly to accurately connect or disconnect the electric energy meter, simplifying the operation and shortening the auxiliary time during the verification process.

[0018] Furthermore, the drive assembly of the present invention utilizes a combination of worm and lead screw transmissions, leveraging the inherent self-locking effects of these transmissions. This allows the meter positioning assembly, driven by the drive assembly, to maintain this position through its inherent self-locking properties after the meter has been moved into position and established a secure crimping connection with the terminal assembly. This effectively prevents the meter from loosening or becoming disengaged due to external vibration or load changes, and utilizes a simple transmission structure to ensure the reliability of the electrical connection between the meter and the terminal during the calibration process.

[0019] In addition, the present invention combines the stable guidance provided by the guide rails and sliding members to make the entire process of placing and connecting the electricity meter smoother and more reliable. These factors work together to significantly improve the overall production efficiency and equipment utilization of the electricity meter calibration line. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 2. It is a structural schematic diagram of a tray bottom plate in a compatible electric energy meter loading tray according to an embodiment of the present invention; Figure 2 2. It is a schematic structural diagram of a drive assembly in a compatible electric energy meter tray according to an embodiment of the present invention; Figure 3 Schematic diagram of the installation position of the electric energy meter positioning component in the compatible electric energy meter loading tray according to an embodiment of the present invention; Figure 4 2. It is a schematic structural diagram of a wiring assembly in a compatible electric energy meter tray according to an embodiment of the present invention; Figure 5 It is a structural schematic diagram of a compatible electric energy meter tray according to an embodiment of the present invention. Reference numerals: 1 - tray base; 2 - drive assembly; 21 - drive worm; 22 - lead screw; 23 - lead screw follower; 3 - wiring assembly; 31 - electrical connection terminal; 32 - electrical connection pin; 33 - energy meter limit baffle; 331 - guide ramp; 4 - energy meter positioning assembly; 41 - pusher; 5 - energy meter; 6 - positioning pin; 7 - guide rail; 8 - slide. DETAILED DESCRIPTION The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application.

[0021] Specific embodiments of the present invention are described below with reference to the accompanying drawings. The following description, with reference to the accompanying drawings, is provided to aid understanding of example embodiments of the present invention as defined by the claims and their equivalents. Various specific details are included to aid understanding, but they are to be considered as illustrative only. Therefore, those skilled in the art will recognize that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present invention. Furthermore, for clarity and brevity, detailed descriptions of functions and configurations well known in the art may be omitted.

[0022] The present invention provides a compatible electric energy meter tray, the overall structure of which can be found in Figures 1 to 5 .

[0023] like Figure 1 and Figure 5 As shown, the compatible electric energy meter loading tray of this embodiment includes a tray bottom plate (1). The tray bottom plate (1) is the basic bearing structure of the entire meter loading tray.

[0024] Mounted on the tray base plate (1) are a drive assembly (2) and a wiring assembly (3). The drive assembly (2) is used to provide power to drive subsequent components to move. The wiring assembly (3) is used to achieve electrical connection with the energy meter to be inspected (5) and an external control terminal.

[0025] like Figure 3 and Figure 5 As shown, the electric energy meter positioning assembly (4) is also installed on the tray bottom plate (1) and driven by the driving assembly (2). The electric energy meter positioning assembly (4) can be positioned on the tray bottom plate (1) along a preset specified direction (for example, Figure 1The electric energy meter positioning assembly (4) is provided with a pushing portion (41) for pushing the electric energy meter (5). By moving the electric energy meter positioning assembly (4), the electric energy meter (5) placed on the tray bottom plate (1) can be moved toward or away from the wiring assembly (3), thereby achieving connection or disconnection with the electrical connection pin (32) on the wiring assembly (3).

[0026] See also Figure 2 Specifically, the drive assembly (2) preferably includes a drive worm (21) and a lead screw (22). In a preferred embodiment, the drive worm (21) can be arranged vertically, and the lead screw (22) can be arranged horizontally and arranged along a specified direction. The drive worm (21) and the lead screw (22) are connected by a transmission, for example Figure 2 In the embodiment of the present invention, a driven worm wheel is provided in the middle of the lead screw (22), and a threaded portion of the driving worm (21) is meshed with the driven worm wheel. When the driving worm (21) rotates around its axis, the lead screw (22) is driven to rotate around its own axis through the worm and worm wheel transmission. The meshing portion of the driving worm (21) and the lead screw (22) can be accommodated in a drive assembly housing.

[0027] A screw follower (23) is threadedly connected to the screw (22). The screw follower (23) has a threaded hole that cooperates with the thread of the screw (22). The screw follower (23) is also fixedly connected to the electric energy meter positioning assembly (4). Preferably, a fixed surface for connecting to other components is provided on the top of the screw follower (23). This matching relationship can limit its own rotation. Therefore, when the screw (22) rotates, the screw follower (23) will move linearly along the axial direction of the screw (22) under the action of the thread pair, thereby driving the electric energy meter positioning assembly (4) fixedly connected thereto to move.

[0028] Furthermore, if Figure 3 and Figure 5 As shown, in order to enable multiple electric energy meters (5) to be calibrated simultaneously, the electric energy meter positioning assembly (4) may include a first electric energy meter positioning assembly and a second electric energy meter positioning assembly. The first electric energy meter positioning assembly and the second electric energy meter positioning assembly are respectively arranged on opposite sides of the wiring assembly (3) along the arrangement direction of the lead screw (22). Accordingly, the two ends of the lead screw (22) are respectively threadedly connected with a first lead screw follower and a second lead screw follower. In order to achieve synchronous movement in opposite directions, the threaded connection between the lead screw (22) and the first lead screw follower and the second lead screw follower at its two ends has opposite rotation directions. This can be achieved by arranging thread segments with opposite rotation directions at both ends of the lead screw (22), or using a lead screw (22) with the same rotation direction thread but with lead screw followers with opposite rotation directions.

[0029] In this arrangement, when the lead screw (22) rotates, the first lead screw follower and the second lead screw follower will move in opposite directions along a specified direction, that is, simultaneously approach or simultaneously move away from the middle of the lead screw (22). The first lead screw follower is fixedly connected to the first electric energy meter positioning assembly, and the second lead screw follower is fixedly connected to the second electric energy meter positioning assembly. Therefore, the rotation of the lead screw (22) can cause the first electric energy meter positioning assembly and the second electric energy meter positioning assembly to move toward or away from each other synchronously, thereby achieving simultaneous connection or disconnection between the electric energy meter (5) placed on the tray bottom plate (1) and the electrical connection pins (32) on the wiring assembly (3).

[0030] In order to ensure the smoothness and accuracy of the movement of the electric energy meter positioning component (4), as Figure 1 and Figure 3 As shown, a guide rail (7) is preferably provided on the tray bottom plate (1). The guide rail (7) is arranged along a specified direction. In a preferred embodiment as shown in the figure, the guide rail (7) may include two guide rails (7) arranged parallel to each other, for example, they may be symmetrically arranged on both sides of the lead screw (22).

[0031] A sliding member (8) is slidably connected to the guide rail (7). The sliding member (8) is preferably arranged across the two guide rails (7) and forms a sliding fit with the two guide rails (7) through a structure such as a slide groove or a slider. The sliding member (8) is fixedly connected to the electric energy meter positioning assembly (4) by bolts. At the same time, the sliding member (8) is also fixedly connected to the screw follower (23) by bolts. In this way, when the screw follower (23) moves, the electric energy meter positioning assembly (4) is driven by the sliding member (8) to move accurately in a straight line along the guide rail (7). According to Figure 3 The structure shown has two sliding members (8), which are respectively connected to the first electric energy meter positioning assembly / first screw follower and the second electric energy meter positioning assembly / second screw follower.

[0032] like Figure 3 As shown, the electric energy meter positioning assembly (4) can be a roughly tray-shaped structure, the upper surface of which is used to support the electric energy meter (5). A push portion (41) is provided on the electric energy meter positioning assembly (4). The push portion (41) can be designed as a vertically raised baffle structure, which is used to push against the side wall of the electric energy meter (5) when the electric energy meter positioning assembly (4) moves, so that it moves accordingly. The push portion (41) can be set to be continuous or intermittent as needed to adapt to different shapes of the electric energy meter (5) housing.

[0033] In some embodiments, a receiving groove may be provided at the bottom of the electric energy meter positioning assembly (4) to avoid interference with the lead screw (22) or the guide rail (7) below.

[0034] See also Figure 4One of the core advantages of the present invention is its compatibility, which is mainly achieved by the replaceable design of the wiring assembly (3). The wiring assembly (3) is detachably mounted on the tray bottom plate (1). In order to achieve rapid disassembly and precise positioning, the tray bottom plate (1) is preferably provided with a plurality of positioning pins (6), such as Figure 1 The four positioning pins (6) are arranged in a square shape, and the bottom of the wiring assembly (3) is provided with positioning holes that match the shape, number and position of the positioning pins (6).

[0035] During installation, the positioning hole of the wiring assembly (3) is aligned with the positioning pin (6) on the tray bottom plate (1) and inserted downwards to complete the installation quickly and accurately. During disassembly, the wiring assembly (3) can be pulled out upwards. By replacing the wiring assembly (3) with a different structure, such as a different number, specification, and position of electrical connection pins (32), the meter tray of the present invention can be compatible with different types of electric energy meters (5).

[0036] Figure 4 An exemplary structure of one of the wiring components (3) is shown. The wiring component (3) is configured with electrical connection pins (32) for direct contact with the electric energy meter (5) to be tested. The arrangement direction of these electrical connection pins (32) is preferably parallel to the driving direction of the driving component (2), that is, the extension direction of the guide rail (7), so as to facilitate the linear insertion and removal of the electric energy meter (5). As shown in the figure, electrical connection pins (32) can be provided on both opposite sides of the wiring component (3) along a specified direction, and two or more groups can be provided on each side to support the simultaneous verification of multiple electric energy meters (5). The wiring component (3) is also configured with electrical connection terminals (31), which are provided at the top of the wiring component (3) for electrical connection with an external control system or test equipment. The electrical connection terminals (31) and the electrical connection pins (32) are connected by internal wires.

[0037] like Figure 5 The working state shown is as follows: when the electric energy meter (5) is placed on the electric energy meter positioning assembly (4), the driving assembly (2) is driven to move the electric energy meter positioning assembly (4) toward the wiring assembly (3), and the pushing portion (41) thereon pushes the electric energy meter (5) until the wiring terminal on the electric energy meter (5) is reliably plugged into the electrical connection pin (32) on the wiring assembly (3). The reverse driving assembly (2) moves the electric energy meter positioning assembly (4) away from the wiring assembly (3), thereby disengaging the electric energy meter (5) from the electrical connection pin (32). Due to the use of the double positioning assembly and the reverse screw transmission structure, the electric energy meters (5) on both sides can be synchronously plugged in and synchronously disengaged.

[0038] In addition, since the drive assembly (2) adopts worm gear transmission and lead screw transmission, these transmission modes usually have self-locking characteristics, that is, after the drive stops, even if there is a certain load (such as pressure from the pin) at the end of the electric energy meter (5), the mechanism can remain in the current position and is not easy to move in the opposite direction, which ensures the connection reliability of the electric energy meter (5) in the plugged state.

[0039] In order to further improve the positioning accuracy and prevent the electric energy meter (5) from being tilted during the plugging process, Figure 4 As shown, an electric energy meter limiting baffle (33) can be preferably provided on the wiring assembly (3). The electric energy meter limiting baffle (33) can be extended in a specified direction and provided outside the electrical connection pin (32) or between adjacent electric energy meters (5), and is used to limit the lateral position of the electric energy meter (5) when it approaches and is plugged in, ensuring that it is accurately aligned and inserted into the predetermined plugging position. At the same time, these baffles can also play the role of separating adjacent electric energy meters (5).

[0040] The compatible electric energy meter loading tray and verification device of the present invention utilizes a wiring assembly that is detachably mounted on the tray base. This wiring assembly can be customized and replaced according to the wiring characteristics of different types of electric energy meters. The assembly can be quickly removed from and installed on the tray base through the cooperation of positioning pins and positioning holes. This allows the same meter loading tray to accommodate electric energy meters of different specifications and types, significantly improving the compatibility of the automated verification line for different electric energy meters and overcoming the shortcomings of the existing dedicated lines, which have a limited scope of application. Furthermore, the drive assembly automatically and quickly drives the electric energy meter positioning assembly to accurately connect or disconnect the electric energy meter, simplifying the operation and shortening the auxiliary time during the verification process.

[0041] More preferably, an introduction slope (331) is provided at one end of the electric energy meter limit baffle (33) facing the direction of the electric energy meter (5). The introduction slope (331) can be an inclined surface for providing guidance when the electric energy meter (5) approaches, so that the electric energy meter (5) can more smoothly enter the area defined by the limit baffle (33) and finally precisely match with the electrical connection pin (32).

[0042] In addition to the above-mentioned compatible electric energy meter tray, the present invention also discloses a compatible electric energy meter calibration device.

[0043] This compatible energy meter calibration device utilizes the compatible energy meter loading tray described in the previous embodiments. In this calibration device, the compatible energy meter loading tray performs the key functions of automatically loading, accurately positioning, and achieving reliable electrical connections for the energy meter to be inspected, providing a basic interface and operating platform for the subsequent automated energy meter calibration process.

[0044] Those skilled in the art will understand that a complete compatible electricity meter calibration device generally also includes a control system for controlling the calibration process, a measuring unit for performing measurements, a power supply unit for providing power, and other necessary auxiliary equipment (for example, an interface for human-computer interaction, a system for data processing, etc.). These all fall within the conventional technical scope of this field and will not be elaborated here.

[0045] Since the compatible electric energy meter calibration device adopts the aforementioned compatible electric energy meter tray having many advantages, the calibration device also correspondingly possesses the beneficial effects of the aforementioned compatible electric energy meter tray.

[0046] The above description is merely an exemplary embodiment of the present disclosure and is not intended to limit the scope of the present disclosure. That is, any equivalent changes and modifications made in accordance with the teachings of the present disclosure are still within the scope of the present disclosure. After considering the specification and practicing the disclosure herein, those skilled in the art will easily think of the implementation scheme of the present disclosure. This application is intended to cover any variations, uses or adaptations of the present disclosure, which follow the general principles of the present disclosure and include common knowledge or customary technical means in the art that are not recorded in the present disclosure. The description and examples are to be regarded as exemplary only, and the scope and spirit of the present disclosure are defined by the claims.

Claims

1. A compatible electric energy meter tray, characterized in that: include: Pallet bottom plate; A drive assembly mounted on the pallet bottom plate; a wiring assembly detachably mounted on the bottom plate of the tray, the wiring assembly being configured with electrical connection terminals connected to the electric energy meter and also being configured with a plurality of electrical connection pins arranged parallel to the driving direction of the driving assembly; an electric energy meter positioning assembly driven by the driving assembly and moving along a specified direction on the tray bottom plate, the electric energy meter positioning assembly having a pushing portion for pushing the electric energy meter; The movement of the electric energy meter positioning assembly enables the electric energy meter placed on the bottom plate of the tray to move toward the wiring assembly to be plugged into the electrical connection pin, or to move away from the wiring assembly to be disengaged from the electrical connection pin.

2. A compatible electric energy meter tray as claimed in claim 1, characterized in that: The drive assembly includes: Drive worm; a lead screw drivingly connected to the driving worm, the lead screw being arranged along the specified direction; a screw follower threadedly connected to the screw, wherein the screw follower is fixedly connected to the electric energy meter positioning assembly; The lead screw follower is driven by the rotation of the lead screw to move along the specified direction, so as to drive the electric energy meter positioning assembly to move.

3. The compatible electric energy meter tray according to claim 2, characterized in that: The electric energy meter positioning assembly includes a first electric energy meter positioning assembly and a second electric energy meter positioning assembly, wherein the first electric energy meter positioning assembly and the second electric energy meter positioning assembly are respectively arranged on opposite sides of the wiring assembly along the specified direction; The ends of the screw are respectively provided with a first screw follower and a second screw follower with opposite thread directions; the first screw follower is fixedly connected to the first electric energy meter positioning assembly, and the second screw follower is fixedly connected to the second electric energy meter positioning assembly; The rotation of the lead screw causes the first electric energy meter positioning assembly and the second electric energy meter positioning assembly to move simultaneously in opposite directions along the specified direction, so that the electric energy meter placed on the tray bottom plate is connected or disconnected with the electrical connection pins on the wiring assembly at the same time.

4. The compatible electric energy meter tray according to claim 1, characterized in that: The wiring assembly is provided with an electric energy meter limit baffle, and the electric energy meter limit baffle is used to limit the electric energy meter to a predetermined position for plugging with the electrical connection pin.

5. The compatible electric energy meter tray according to claim 4, characterized in that: The electric energy meter limit baffle is provided with an introduction slope, and the introduction slope is used to guide the electric energy meter to cooperate with the electrical connection pin.

6. The compatible electric energy meter tray according to claim 1, characterized in that: A positioning pin is provided on the tray bottom plate, and a positioning hole corresponding to the positioning pin is provided on the wiring assembly. The wiring assembly can be quickly disassembled and assembled with the tray bottom plate through the cooperation between the positioning pin and the positioning hole.

7. The compatible electric energy meter tray according to claim 1, characterized in that: A guide rail arranged along the specified direction is provided on the bottom plate of the tray, and the guide rail is used to guide the electric energy meter positioning assembly to move along the specified direction.

8. The compatible electric energy meter tray according to claim 7, characterized in that: A sliding member is slidably connected to the guide rail, and the sliding member is fixedly connected to the electric energy meter positioning assembly.

9. The compatible electric energy meter tray according to claim 8, characterized in that: The guide rails include two rails arranged in parallel with each other, and the sliding member is arranged across the two guide rails and is slidably connected to the two guide rails.

10. A compatible electric energy meter calibration device, characterized in that: A compatible electric energy meter tray as described in any one of claims 1 to 9.

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