Electric energy metering device for off-board charger

Abstract

The utility model discloses a non-vehicle-mounted charger electric energy metering device, which relates to the technical field of charger electric energy metering devices and comprises a metering device body, a plurality of wiring ports are arranged at the bottom of the metering device body, and a group of movable filter screen frames are slidably connected to the bottom of the metering device body. The adjacent sides of one set of movable filter screen frames are matched with the wiring port, a moisture absorption block is placed in each movable filter screen frame, and the two sides of one movable filter screen frame are fixedly connected with racks. According to the utility model, a group of movable filter screen frames are driven to be close to each other until the movable filter screen frames surround the connection part of the wiring port and the external wire, so that air circulation can be contacted with the connection part of the wiring port and the external wire only through the movable filter screen frames and the moisture absorption blocks, and moisture and moisture in the air can be reduced through the moisture absorption blocks; therefore, poor contact caused by invasion of moisture into the joint is effectively prevented, and the service life of the device is prolonged.

Description

Technical Field

[0001] This utility model relates to the technical field of charger energy metering devices, specifically a non-vehicle-mounted charger energy metering device. Background Technology

[0002] The working principle of off-board chargers is relatively complex, but the core process is to convert AC power into DC power. During operation, the AC input module receives AC power from the power grid, which is then filtered by the filter module and converted into DC power by the conversion module. The control module is responsible for monitoring and regulating the entire charging process to ensure safe and efficient charging. The DC output module then transmits the converted DC power to the electric vehicle's power battery through the charging socket module.

[0003] During the use of off-board chargers, an energy metering device is usually used to measure the energy. The working principle of the off-board charger energy metering device is based on the measurement principle of an energy meter. By sampling and processing the circuit current and voltage, the energy consumption is calculated. This device can be directly connected to the main circuit of the charger. By sampling and processing the current and voltage signals, the energy can be measured and recorded.

[0004] Currently, when using off-board chargers with energy metering devices, it is necessary to first determine the location of the energy metering device and complete its registration, then complete the connection according to the type of energy metering device, and then set the parameters according to the requirements. After charging is completed, various data during the charging process can be read from the energy metering device.

[0005] However, when using an electricity metering device, the connection points between the wiring ports and the wires on the surface of the device can be affected by moisture in the air, leading to poor contact at the connection points, affecting its use, and reducing the lifespan of the electricity metering device. Utility Model Content

[0006] Based on this, the purpose of this utility model is to provide a non-vehicle-mounted charger power metering device to solve the technical problem that the connection points of the wiring ports on the surface of the power metering device and the wires are affected by moisture in the air, resulting in poor contact at the connection points, affecting the use and reducing the service life of the power metering device.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a non-vehicle-mounted charger energy metering device, comprising a metering device body, a plurality of wiring ports being provided at the bottom of the metering device body, a set of movable filter frames being slidably connected to the bottom of the metering device body, one side of each set of movable filter frames being engaged with the wiring ports, a moisture-absorbing block being placed in each movable filter frame, a rack being fixedly connected to both sides of one movable filter frame, a connecting frame being fixedly connected to both sides of another movable filter frame, a rotating shaft being rotatably connected to each connecting frame and the metering device body, and a gear being fixedly connected to the outer surface of the rotating shaft to engage with the rack, a cross groove being provided in each rotating shaft and the corresponding connecting frame, and a cross block being slidably connected in the cross groove to engage with the cross groove.

[0008] By adopting the above technical solution, after the external wires are connected to the wiring port, a set of movable filter frames can be brought closer together synchronously. During the approach process, the rack inserts into the connecting frame and drives the gear to rotate until the set of movable filter frames is completely in contact with the connection between the wiring port and the external wires. Then, the cross block can be inserted into the cross slot, thereby fixing the rotating shaft and gear through the cross block. This achieves the connection of a set of movable filters. This structure surrounds the connection between the wiring port and the external wires through a set of movable filter frames, so that air must first pass through the movable filter frames and the moisture-absorbing block before contacting the connection. The moisture-absorbing block can reduce the humidity in the air, thereby effectively preventing moisture from entering the connection and causing poor contact, which helps to extend the service life of the device. At the same time, the design of the movable filter frames does not affect the airflow and avoids affecting the heat dissipation of the connection between the wiring port and the external wires.

[0009] The present invention is further configured such that a fixing plate is fixedly connected to one side of the main body of the measuring device, the surface of the fixing plate is provided with a plurality of positioning holes, and a rubber layer is provided on one side of the fixing plate.

[0010] By adopting the above technical solution, fixing parts, such as expansion bolts, can be installed in the positioning hole, thereby realizing the installation and fixing of the fixing plate and the main body of the metering device. At the same time, the design of the rubber layer can increase the friction between the fixing plate and the mounting surface, which facilitates the improvement of the stability of the metering device.

[0011] The present invention is further configured such that a slot is provided on the side of the main body of the measuring device away from the fixed plate, and a display screen that fits into the slot is slidably connected in the slot, and the slot and the display screen are connected by a spring.

[0012] By adopting the above technical solution, when the main body of the metering device is installed in the external cabinet, the display screen can always be in contact with one side of the external cabinet by means of a spring, so that the data on the display screen can be read directly through the transparent material on the surface of the external cabinet.

[0013] The present invention is further configured such that the top of each of the movable filter frames is connected to a movable plate via a hinge, and each movable plate is connected to the corresponding movable filter frame via a set of latches.

[0014] By adopting the above technical solution, the design of the movable plate and the latch makes it easy to open or close the movable filter frame, thereby facilitating the replacement or maintenance of the moisture-absorbing block inside, which ensures the moisture-proof performance of the device. At the same time, the design of the latch can prevent the movable plate from separating from the movable filter frame, thus fixing the position of the moisture-absorbing block.

[0015] The present invention is further configured such that a set of sliding grooves are provided on both sides of the main body of the metering device, and a slider that fits into the sliding groove is slidably connected in each sliding groove, and each slider is fixedly connected to one side of the corresponding movable filter frame.

[0016] By adopting the above technical solution, the design of the chute and slider allows the movable filter screen to slide stably on the main body of the metering device, thereby enabling better use of the device.

[0017] The present invention is further configured such that each of the adjacent sides of a group of movable filter frames is provided with a rubber ring that matches the number of wiring ports.

[0018] By adopting the above technical solution, when connecting the wire to the terminal, the connection between the wire and the terminal can be increased by using a rubber ring, thereby increasing the sealing between the two and preventing external moisture from entering the terminal and the interior of the metering device through the connection, thus improving the moisture-proof performance.

[0019] The present invention is further configured such that each of the sliders is configured as a "T" shaped structure.

[0020] By adopting the above technical solution, the contact area between the slider and the groove can be increased, thereby improving the stability of the slider sliding.

[0021] In summary, the present invention has the following main advantages:

[0022] This invention drives a set of movable filter frames to approach until they surround the connection point between the wiring port and the external wire. This forces airflow to pass through the movable filter frames and the moisture-absorbing block before contacting the connection point. The moisture-absorbing block reduces moisture in the air, effectively preventing moisture from entering the connection point and causing poor contact, thus extending the service life of the device. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This utility model Figure 1 A schematic diagram of the three-dimensional structure from another perspective;

[0025] Figure 3 This is a detailed drawing of the main body of the measuring device of this utility model;

[0026] Figure 4 This is a schematic diagram of the moisture-proof structure of this utility model;

[0027] Figure 5 This is a detailed diagram of the moisture-proof structure of this utility model;

[0028] Figure 6 This utility model Figure 5 Enlarged view of the structure at point A in the middle.

[0029] In the diagram: 1. Metering device body; 2. Slot; 3. Spring; 4. Display screen; 5. Fixing plate; 6. Positioning hole; 7. Movable filter frame; 8. Rack; 9. Slide groove; 10. Slider; 11. Wiring port; 12. Moisture-absorbing block; 13. Movable plate; 14. Lock; 15. Connecting frame; 16. Gear; 17. Cross groove; 18. Cross block; 19. Rubber ring; 20. Rotating shaft. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0031] The embodiments of this utility model will be described below based on its overall structure.

[0032] A non-vehicle-mounted charger energy metering device, such as Figure 1-6As shown, the device includes a metering device body 1. Several wiring ports 11 are provided at the bottom of the metering device body 1, which can be used to connect to external wires, thereby measuring electrical energy through the metering device body 1. At the same time, a fixing plate 5 is fixedly connected to one side of the metering device body 1. Several positioning holes 6 are provided on the surface of the fixing plate 5. Fixing parts, such as expansion bolts, can be installed in the positioning holes 6 to complete the installation and fixing of the fixing plate 5 and the metering device body 1. A rubber layer is provided on one side of the fixing plate 5 to increase the friction between the fixing plate 5 and the mounting surface, thereby improving the stability of the fixing plate 5 and the metering device body 1.

[0033] Meanwhile, a slot 2 is provided on the side of the main body 1 of the measuring device away from the fixed plate 5. A display screen 4 that fits into the slot 2 is slidably connected in the slot 2, so that the display screen 4 can slide in the slot 2 and adjust its position on the surface of the main body 1 of the measuring device. The main body 1 of the measuring device and the display screen 4 are connected by an external connecting line, which does not affect the movement of the display screen 4. The slot 2 and the display screen 4 are connected by a spring 3. Therefore, when the main body 1 of the measuring device is installed, the display screen 4 can be attached to the side of the external cabinet by the spring 3, so that the data on the display screen 4 can be seen directly through the transparent material of the side of the external cabinet, which facilitates better use of the main body 1 of the measuring device.

[0034] Subsequently, a set of movable filter frames 7 are slidably connected to the bottom of the metering device body 1. The movable filter frames 7 can slide at the bottom of the metering device body 1, thereby adjusting the spacing between them. One side of each set of movable filter frames 7 is fitted with the wiring port 11. Therefore, when the adjacent sides of a set of movable filter frames 7 are in contact, the wiring port 11 can be surrounded. Each movable filter frame 7 contains a moisture-absorbing block 12, which can be set as an activated carbon moisture-absorbing block, a molecular sieve moisture-absorbing block, etc. One movable filter frame 7 is fixedly connected to two sides with a rack 8, and the other movable filter frame 7 is fixedly connected to two sides with a connecting frame 15. Each connecting frame 15 is rotatably connected to the metering device body 1 with a rotating shaft 20, and the outer side of the rotating shaft 20... A gear 16 that meshes with the rack 8 is fixedly connected to the surface. Therefore, when a set of movable filter frames 7 approach each other, the rack 8 will insert into the connecting frame 15 and mesh with the gear 16, thus driving the rotation of the gear 16. A cross groove 17 is provided in each rotating shaft 20 and the corresponding connecting frame 15, and a cross block 18 that meshes with the cross groove 17 is slidably connected in the cross groove 17. Therefore, when a set of movable filter frames 7 is used to prevent moisture from the wiring port 11, the position of the movable filter frames 7 needs to be fixed first. The cross block 18 can be inserted into the cross groove 17, so that the rotating shaft 20 and the gear 16 cannot rotate and the rack 8 cannot move through the connecting frame 15 and the cross block 18, thus achieving the fixation of the position of a set of movable filter frames 7.

[0035] Therefore, by driving a set of movable filter frames 7 closer until they surround the connection point between the wiring port 11 and the external wire, the airflow must first pass through the movable filter frames 7 and the moisture-absorbing block 12 before it can contact the connection point between the wiring port 11 and the external wire. The moisture-absorbing block 12 can reduce the moisture and humidity in the air, thereby effectively preventing moisture from entering the connection point and causing poor contact, thus extending the service life of the device.

[0036] Both sides of the main body 1 of the metering device are provided with a set of sliding grooves 9. Each sliding groove 9 is slidably connected with a slider 10 that fits into the sliding groove 9. Each slider 10 is fixedly connected to one side of the corresponding movable filter frame 7. The slider 10 is set with a "T" shaped structure, which can increase the stability of the movable filter frame 7 moving at the bottom of the main body 1 of the metering device and also prevent it from falling off the surface of the main body 1 of the metering device and affecting its use.

[0037] Furthermore, each movable filter frame 7 is connected to a movable plate 13 at its top via a hinge. Each movable plate 13 is connected to the corresponding movable filter frame 7 via a set of latches 14. The movable filter frame 7 can be easily opened or closed via the movable plate 13 and latches 14, thereby enabling the replacement of the moisture-absorbing block 12 inside the movable filter frame 7 and avoiding affecting the adsorption of moisture. At the same time, rubber rings 19 are provided on each side of a set of movable filter frames 7, matching the number of wiring ports 11. Therefore, when connecting external wires to wiring ports 11, the rubber rings 19 can increase the stability and sealing of the external wires, preventing air from entering the connection from the bottom and affecting the use.

[0038] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A non-vehicle-mounted charger energy metering device, comprising a metering device body (1), wherein the bottom of the metering device body (1) is provided with a plurality of wiring ports (11), characterized in that: A set of movable filter frames (7) is slidably connected to the bottom of the main body (1) of the metering device. The adjacent side of the set of movable filter frames (7) is engaged with the wiring port (11). Each movable filter frame (7) contains a moisture-absorbing block (12). One movable filter frame (7) is fixedly connected to both sides of a rack (8), and the other movable filter frame (7) is fixedly connected to both sides of a connecting frame (15). Each connecting frame (15) is rotatably connected to the main body (1) of the metering device by a rotating shaft (20). The outer surface of the rotating shaft (20) is fixedly connected to a gear (16) that engages with the rack (8). Each rotating shaft (20) and the corresponding connecting frame (15) are provided with a cross groove (17). A cross block (18) that engages with the cross groove (17) is slidably connected in the cross groove (17).

2. The off-board charger energy metering device according to claim 1, characterized in that: A fixing plate (5) is fixedly connected to one side of the main body (1) of the metering device. The surface of the fixing plate (5) is provided with a plurality of positioning holes (6), and a rubber layer is provided on one side of the fixing plate (5).

3. The off-board charger energy metering device according to claim 2, characterized in that: The main body (1) of the metering device is provided with a slot (2) on the side away from the fixed plate (5). A display screen (4) that matches the slot (2) is slidably connected in the slot (2), and the slot (2) and the display screen (4) are connected by a spring (3).

4. The off-board charger energy metering device according to claim 1, characterized in that: Each of the movable filter frames (7) has a movable plate (13) connected to its top via a hinge, and each movable plate (13) is connected to the corresponding movable filter frame (7) via a set of latches (14).

5. The off-board charger energy metering device according to claim 1, characterized in that: The main body (1) of the metering device is provided with a set of sliding grooves (9) on both sides. Each sliding groove (9) is slidably connected with a slider (10) that matches the sliding groove (9). Each slider (10) is fixedly connected to one side of the corresponding movable filter frame (7).

6. The off-board charger energy metering device according to claim 1, characterized in that: Each of the movable filter frames (7) has a rubber ring (19) on one side that matches the number of the wiring ports (11).

7. The off-board charger energy metering device according to claim 5, characterized in that: Each of the sliders (10) is configured as a "T" shaped structure.

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