Guide rail type electric energy meter convenient to assemble

Abstract

The utility model discloses a guide rail type electric energy meter convenient to assemble, and aims to solve the problems that a PCB (Printed Circuit Board) and a meter seat of an existing guide rail type electric energy meter are tedious to assemble and low in efficiency. The electric energy meter comprises a meter base, an upper cover and a PCB. The side, away from the upper cover, of the meter base is provided with a guide rail buckle and a clamping groove to achieve guide rail installation. Fixing plates are arranged at the two ends in the gauge stand, limiting structures for limiting and fixing are arranged on the sides, facing the PCB, of the fixing plates, and fixing insertion pieces, facing the middle of the side of the gauge stand, of the fixing plates are embedded into gauge stand fixing clamping grooves to complete quick connection; and the conducting strips can pass through the sheet passing grooves in the two sides of the fixed insertion sheet in order. According to the device, traditional screw fixation is replaced by embedded connection of the fixing plate, the assembly process of the PCB is simplified, the production and maintenance efficiency is improved, meanwhile, wiring of the conducting strips is structured, the device has assembly convenience and structural stability, and the device is suitable for various guide rail type electric energy metering scenes.

Description

Technical Field

[0001] This utility model relates to the field of electricity meter technology, and in particular to a rail-mounted electricity meter that is easy to assemble. Background Technology

[0002] The DIN rail-mounted energy meter is a compact energy metering device that is adapted to 35mm standard DIN rail mounting. Due to its small size, convenient installation and high integration, it is widely used in building power distribution, industrial control cabinets, smart homes and other scenarios. It mainly consists of a base, top cover, PCB board and electrical connection components. Its internal PCB board carries the core functions of metering and data processing and is a key component to ensure the accuracy of energy metering and the stable operation of the equipment.

[0003] In the existing structural design of rail-mounted energy meters, the assembly method of the PCB board and the meter base suffers from cumbersome processes and low assembly efficiency. Currently, the industry mostly uses a screw-support column fixing scheme. During assembly, the PCB board must first be precisely aligned with the positioning column inside the meter base, and then the mounting holes on the PCB board must be aligned with the screw holes of the support column one by one, and then locked with multiple screws. Some auxiliary snap-fit ​​fixing structures also require positioning first and then pressing to lock, and the snap-fit ​​and screw must be used together to ensure stability. This assembly method not only requires high precision from the assemblers, but also suffers from time-consuming screw tightening and difficulty in aligning multiple parts. In mass production scenarios, this will significantly reduce the overall efficiency of the production line. At the same time, during subsequent equipment maintenance, screws or snap-fits must be removed one by one to remove the PCB board, which also increases the operation and time costs of after-sales maintenance. Utility Model Content

[0004] The main purpose of this utility model is to provide a rail-mounted energy meter that is easy to assemble, which aims to simplify the assembly process of the PCB board and the meter base, improve the efficiency of production assembly and subsequent maintenance, and solve the problems of cumbersome and time-consuming assembly methods in the present invention.

[0005] To achieve the above objectives, this utility model proposes a rail-mounted energy meter that is easy to assemble, including a meter base, a top cover, and a PCB board. The meter base and the top cover are detachably connected. The PCB board is located in the middle of the meter base. The meter base has two fixing plates inside, which are located at opposite ends of the PCB board. The fixing plates have a limiting structure on the side facing the PCB board for limiting and fixing the PCB board. The fixing plates have a fixing insert on the side facing the meter base, which is located in the middle of the fixing plate. The meter base has a fixing slot, and the fixing insert is embedded in the fixing slot. The side of the fixing plate facing the meter base is recessed towards the side away from the meter base to form two through grooves for the passage of conductive plates. The two through grooves are located on both sides of the fixing insert.

[0006] In one possible implementation, the limiting structure includes a limiting slot for fixing the height of the PCB board and a limiting block for preventing the PCB board from shifting horizontally. The PCB board is embedded in the limiting slot, and a limiting groove is provided on the side of the PCB board facing the fixing plate. The limiting block is embedded in the limiting groove.

[0007] In one possible implementation, the base is fixedly connected to a fixing back plate, the fixing back plate is located on the side of the fixing plate away from the PCB board, the fixing plate has a connecting groove matching the fixing back plate on the side facing the fixing back plate, and the fixing back plate is embedded in the connecting groove and abuts against the fixing insert.

[0008] In one possible implementation, the fixing insert has an anti-detachment opening, and the fixing back plate has an anti-detachment protrusion on the side facing the fixing insert, the anti-detachment protrusion being embedded in the anti-detachment opening.

[0009] In one possible implementation, a reinforcing plate is fixedly connected to the side of the fixed back plate away from the fixed insert, the reinforcing plate being perpendicular to the fixed back plate, and the end of the reinforcing plate away from the fixed back plate being fixedly connected to the side wall of the base.

[0010] In one possible implementation, the base is provided with two side strips on each of the two inner sidewalls perpendicular to the fixing plate, and the side of the fixing plate is embedded between the two side strips.

[0011] The working principle and beneficial effects of this utility model are as follows:

[0012] This utility model's technical solution achieves rapid and precise positioning of the PCB board by setting two fixing plates with limiting structures inside the base and placing them at both ends of the PCB board. This replaces the traditional method of fixing the PCB board by aligning screws one by one, simplifying the initial fixing process. By setting fixing plates on the fixing plates, and cooperating with the fixing slots on the base, the fixing plates and the base are embeddedly connected, enabling rapid assembly without additional fasteners. This significantly reduces the number of screw-tightening steps during assembly and improves the overall assembly efficiency of the production line. By setting through grooves on both sides of the fixing plates, conductive sheets are inserted in an orderly manner, avoiding spatial interference between the conductive sheets and the fixing structure. This eliminates the need for additional adjustments to the conductive sheet routing, further simplifying the overall assembly process. It also facilitates component disassembly and assembly during subsequent maintenance, reducing the time cost of after-sales maintenance. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 for Figure 1 Schematic diagram of the structure after removing the top cover;

[0016] Figure 3 for Figure 2 Schematic diagram of the structure after removing the PCB board;

[0017] Figure 4 This is a top view of the base of this utility model;

[0018] Figure 5 This is a front view of the fixing plate of this utility model;

[0019] Figure 6 This is a rear view of the fixing plate of this utility model.

[0020] Explanation of reference numerals: 1. Base; 2. Top cover; 3. PCB board; 4. Fixing plate; 11. Fixing slot; 12. Fixing back plate; 13. Anti-detachment protrusion; 14. Reinforcing plate; 15. Side strip; 31. Limiting groove; 41. Fixing insert; 42. Passing groove; 43. Limiting slot; 44. Limiting block; 45. Connecting groove; 46. Anti-detachment opening.

[0021] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0023] like Figures 1-6As shown, this embodiment proposes a rail-mounted energy meter that is easy to assemble, including a meter base 1, a top cover 2, and a PCB board 3. The meter base 1 and the top cover 2 are detachably connected. The PCB board 3 is located in the middle of the inside of the meter base 1. Two fixing plates 4 are provided inside the meter base 1, located at both ends of the PCB board 3. The fixing plates 4 have a limiting structure on the side facing the PCB board 3 for limiting and fixing the PCB board 3. The limiting structure includes a limiting slot 43 for fixing the height of the PCB board 3 and a limiting block 44 for preventing the PCB board 3 from shifting horizontally. The PCB board 3 is embedded in the limiting slot 43. A limiting groove 31 is provided on the side of the PCB board 3 facing the fixing plate 4, and the limiting block 44 is embedded in the limiting groove 31. Two side strips 15 are provided on each of the two inner sidewalls of the meter base 1 perpendicular to the fixing plate 4, and the side of the fixing plate 4 is embedded between the two side strips 15.

[0024] In this embodiment, two fixing plates 4 are placed at both ends of the PCB board 3, providing a double-sided support base for the PCB board 3. They also integrate the core functions of PCB positioning and connection with the meter base 1, replacing traditional distributed fixing components. This optimizes the internal spatial layout of the meter base 1, making the internal structure more compact and providing a carrier for the rapid assembly of the PCB board 3, reducing component docking steps during assembly. The positioning slot 43 allows the PCB board 3 to be embedded and limits its installation height, preventing it from moving up and down inside the meter. This ensures stable spacing between components on the PCB board 3 and other parts, preventing poor circuit contact due to height deviation, and indirectly maintaining the accuracy of energy metering and the stability of equipment operation. The positioning block 44 can be embedded in the positioning groove 31 of the PCB board 3, effectively limiting the horizontal displacement of the PCB board 3 and preventing it from shifting left and right under vibration during transportation or use. This ensures the PCB board 3 maintains a precise installation position, ensuring the relative stability of core components such as the metering chip and sampling resistor on the board, and improving the overall structure's vibration resistance. The two side strips 15 on the inner wall of the base 1 allow the side of the fixing plate 4 to be embedded therein, thereby limiting the horizontal position of the fixing plate 4 and preventing it from tilting or shifting during assembly or use. This ensures the limiting effect of the fixing plate 4 on the PCB board 3, further enhances the stability of the overall structure, and provides guidance for the quick alignment of the fixing plate 4 and the base 1, simplifying the assembly process of the fixing plate 4.

[0025] In this embodiment, a fixing plate 41 is provided on the side of the fixing plate 4 facing the base 1. The fixing plate 41 is located in the middle of the fixing plate 4. The base 1 is provided with a fixing slot 11. The fixing plate 41 is embedded in the fixing slot 11. The side of the fixing plate 4 facing the base 1 is recessed towards the side away from the base 1 to form two through grooves 42 for the conductive sheet to pass through. The two through grooves 42 are respectively located on both sides of the fixing plate 41. A fixing back plate 12 is fixedly connected to the base 1. The fixing back plate 12 is located on the side of the fixing plate 4 away from the PCB board 3. A connecting groove 45 matching the fixing back plate 12 is provided on the side of the fixing plate 4 facing the fixing back plate 12. The fixing back plate 12 is embedded in the connecting groove 45 and abuts against the fixing plate 41. The fixing plate 41 is provided with an anti-detachment opening 46. An anti-detachment protrusion 13 is provided on the side of the fixing back plate 12 facing the fixing plate 41. The anti-detachment protrusion 13 is embedded in the anti-detachment opening 46. A reinforcing plate 14 is fixedly connected to the side of the fixed back plate 12 away from the fixed insert 41. The reinforcing plate 14 is perpendicular to the fixed back plate 12, and the end of the reinforcing plate 14 away from the fixed back plate 12 is fixedly connected to the side wall of the base 1.

[0026] In this embodiment, the fixing insert 41 is located in the middle of the fixing plate 4 and embedded in the fixing slot 11 of the base 1, which enables quick embedded connection between the fixing plate 4 and the base 1 without the need for additional screws or other fasteners. This greatly simplifies the assembly steps of the fixing plate 4, improves the overall assembly efficiency, and provides a stable connection point for the fixing plate 4, ensuring the stability of the fixing plate 4 in limiting the PCB board 3. It also facilitates quick disassembly during subsequent maintenance. Two through grooves 42 are located on both sides of the fixing insert 41, providing dedicated passageways for the conductive sheet. This allows the conductive sheet to pass through the area of ​​the fixing plate 4 in an orderly manner, avoiding spatial interference between the conductive sheet and the fixing plate 4 and other structures. This eliminates the need for additional adjustment of the conductive sheet wiring, organizes the internal circuit layout, ensures the stability of the conductive sheet connection, and reduces the risk of poor contact caused by messy wiring. The fixing back plate 12 is located on the side of the fixing plate 4 away from the PCB board 3, and is embedded in the connecting groove 45 of the fixing plate 4 and abuts against the fixing insert 41. It can provide reverse support for the fixing plate 4, further strengthen the connection between the fixing plate 4 and the meter base 1, prevent the fixing plate 4 from loosening or shifting, enhance the limiting effect of the fixing plate 4 on the PCB board 3, and make the force on the fixing plate 4 more even, thereby improving the stability of the overall structure. The anti-detachment protrusion 13 is embedded in the anti-detachment opening 46 of the fixing insert 41, which can form a snap-fit ​​limiting effect on the fixing insert 41, preventing the fixing insert 41 from accidentally falling out of the fixing slot 11, ensuring the reliability of the connection between the fixing plate 4 and the meter base 1, preventing the meter from becoming loose during transportation or vibration, improving the overall vibration and anti-detachment performance of the equipment, and extending the service life of the equipment. The reinforcing plate 14 is vertically fixed to the side of the fixed back plate 12 away from the fixed insert 41, and its end is connected to the side wall of the table base 1. This can enhance the structural strength of the fixed back plate 12, distribute the pressure on the fixed back plate 12, and prevent the fixed back plate 12 from deforming due to long-term stress. At the same time, it forms a connection support between the side wall of the table base 1 and the fixed back plate 12, further strengthening the overall internal structure and improving the structural stability and durability of the equipment.

[0027] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0028] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A rail-mounted energy meter that is easy to assemble, comprising a base (1), a top cover (2), and a PCB board (3), wherein the base (1) and the top cover (2) are detachably connected, and the PCB board (3) is located in the middle of the interior of the base (1), characterized in that, The watch base (1) is provided with two fixing plates (4) inside. The two fixing plates (4) are located at both ends of the PCB board (3). The fixing plate (4) facing the PCB board (3) is provided with a limiting structure for limiting and fixing the PCB board (3). The fixing plate (4) facing the watch base (1) is provided with a fixing insert (41). The fixing insert (41) is located in the middle of the fixing plate (4). The watch base (1) is provided with a fixing slot (11). The fixing insert (41) is embedded in the fixing slot (11). The side of the fixing plate (4) facing the watch base (1) is recessed to the side away from the watch base (1) to form two through grooves (42) for the conductive sheet to pass through. The two through grooves (42) are located on both sides of the fixing insert (41).

2. The easily assembled rail-mounted energy meter according to claim 1, characterized in that, The limiting structure includes a limiting slot (43) for fixing the height of the PCB board (3) and a limiting block (44) for preventing the PCB board (3) from shifting horizontally. The PCB board (3) is embedded in the limiting slot (43). The PCB board (3) has a limiting groove (31) on the side facing the fixing plate (4). The limiting block (44) is embedded in the limiting groove (31).

3. The easily assembled rail-mounted energy meter according to claim 1, characterized in that, The base (1) is fixedly connected to a fixed back plate (12). The fixed back plate (12) is located on the side of the fixed plate (4) away from the PCB board (3). The fixed plate (4) has a connecting groove (45) that matches the fixed back plate (12) on the side facing the fixed back plate (12). The fixed back plate (12) is embedded in the connecting groove (45) and abuts against the fixed insert (41).

4. A rail-mounted energy meter for easy assembly according to claim 3, characterized in that, The fixing insert (41) is provided with an anti-detachment opening (46), and the fixing back plate (12) is provided with an anti-detachment protrusion (13) on the side facing the fixing insert (41), and the anti-detachment protrusion (13) is embedded in the anti-detachment opening (46).

5. A rail-mounted energy meter for easy assembly according to claim 3 or 4, characterized in that, A reinforcing plate (14) is fixedly connected to the side of the fixed back plate (12) away from the fixed insert (41). The reinforcing plate (14) is perpendicular to the fixed back plate (12). The end of the reinforcing plate (14) away from the fixed back plate (12) is fixedly connected to the side wall of the base (1).

6. A rail-mounted energy meter for easy assembly according to claim 1, characterized in that, The base (1) is provided with two side strips (15) on both inner walls perpendicular to the fixing plate (4), and the side of the fixing plate (4) is embedded between the two side strips (15).

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