Static direct current electric energy meter with independent uplink communication function

Abstract

The application relates to the technical field of electric energy meters, and particularly discloses a static direct-current electric energy meter with independent uplink communication function, which comprises a meter body, a display screen is arranged on the meter body, a clamping column is slidably arranged in the meter body, the moving direction of the clamping column is parallel to the width direction of the meter body, a connecting column is arranged in the meter body, a clamping hole matched with the clamping column is formed in the connecting column, a limiting ring is fixedly connected to the clamping column, a containing groove for containing the clamping column and the connecting column is formed in the bottom of the meter body, a wiring hole is formed in the bottom of the meter body, the wiring hole is communicated with the containing groove, a driving piece for driving the clamping column to slide is arranged on the meter body, and a positioning piece for positioning a copper nose is arranged in the containing groove. The application has the effect of improving wiring and installation efficiency when an electric energy meter is installed in a narrow space.

Description

Technical Field

[0001] This application relates to the field of electricity meter technology, and in particular to a static DC electricity meter with independent uplink communication function. Background Technology

[0002] DC energy meters, as core equipment in the field of electricity metering, are mainly divided into three categories: AC energy meters, DC energy meters, and AC / DC dual-purpose energy meters. Among them, DC energy meters are widely used in DC power distribution scenarios such as photovoltaic power generation systems, electric vehicle charging piles, and data center power supply systems.

[0003] Currently, the communication module configurations of DC energy meters are mainly divided into three categories: smart energy meters with integrated NB-IoT communication modules, standard energy meters with built-in RS-485 communication interfaces, and traditional energy meters with external LoRa communication converters. NB communication modules are typically integrated onto the circuit board using SMT surface mount technology (SMT). RS-485 modules mostly connect to the main control board via plug-in terminals, while external communication converters interface with the energy meter through dedicated communication ports. During the installation of a DC energy meter, the operator first connects one end of the cable to a copper lug, then inserts the copper lug into the DC energy meter's wiring port, and uses a screwdriver to tighten the wiring terminal, crimping and securing the copper lug to the terminal, thus completing the wiring work for the DC energy meter.

[0004] In actual construction, multiple DC energy meters often need to be installed in a small distribution box at the same time. However, using a screwdriver requires a certain amount of operating space, and the wiring terminals need to be tightened multiple times to fix the cables during the installation process, resulting in low installation efficiency. Utility Model Content

[0005] To address the issues of inconvenient tool use and low installation efficiency in confined spaces during DC energy meter installation and wiring, this application provides a static DC energy meter with independent uplink communication functionality.

[0006] The static DC energy meter with independent uplink communication function provided in this application adopts the following technical solution: A static DC power meter with independent uplink communication function includes a meter body, a display screen, a sliding abutment post inside the meter body, the moving direction of the abutment post being parallel to the length direction of the meter body, a connecting post inside the meter body, a abutment hole on the connecting post that is adapted to be inserted into the abutment post, a limit ring fixedly connected to the abutment post, a receiving groove at the bottom of the meter body for accommodating the abutment post and the connecting post, a wiring hole on the meter body communicating with the receiving groove, a driving component on the meter body for driving the abutment post to slide, and a positioning component for positioning the copper lugs inside the receiving groove.

[0007] By adopting the above technical solution, the electricity meter is installed inside the control box. When wiring is required, the positioning component is first slid to the wiring hole, then the copper lug on the cable is placed on the positioning component, and the positioning component is slid, causing the copper lug to slide along the wiring hole into the meter body. At this time, the mounting hole on the copper lug corresponds to the clamping post. The driving component is rotated, and the driving component moves the clamping post in the receiving groove, and the clamping post is inserted into the mounting hole of the copper lug. The limiting ring on the clamping post abuts against the copper lug, thereby causing the copper lug to fall off the positioning component. The clamping post continues to move along the width direction of the meter body and inserts into the clamping hole of the connecting post, thereby fixing the copper lug to the connecting post. For the wiring work of the installation cable, for the narrow operating space, this device drives the clamping post to move and fix the copper lug on the connecting post through the driving component, reducing the use of installation tools, which is conducive to completing the wiring work in the narrow space, and at the same time improving the installation work efficiency.

[0008] Optionally, the driving component includes a rack fixed to one end of the abutment post away from the connecting post, and a gear rotatably disposed in the receiving groove that meshes with the rack, the rack being in movable contact with the groove wall of the receiving groove.

[0009] By adopting the above technical solution, the positioning component moves the copper lug into the watch body and corresponds to the connecting post. When the gear is rotated, the gear rotation drives the rack to move along the groove wall of the receiving groove. The rack drives the clamping post to move along the length direction of the watch body until the clamping post is inserted into the clamping hole of the connecting post and fixes the copper lug on the connecting post.

[0010] Optionally, a rotating rod is rotatably mounted inside the watch body. The rotation axis of the rotating rod is parallel to the width direction of the watch body. One end of the rotating rod is coaxially fixed to the gear, and the other end of the rotating rod passes through the watch body and is fixed to a rotating plate. A locking element for locking the rotating plate is provided on the watch body.

[0011] By adopting the above technical solution, during the wiring process, the rotating plate is first rotated to open the wiring hole. The rotation of the rotating plate drives the rotating rod to rotate, which in turn drives the gear to rotate. The gear then moves the rack and pinion away from the connecting post. Next, the sliding positioning component slides the copper lug into the meter body. After the copper lug aligns with the connecting post, the rotating plate is rotated again to block the wiring hole. The rotating plate drives the rotating rod to rotate, and the connecting post fixes the copper lug onto the connecting post. While the rotating plate moves the connecting post, the wiring hole is blocked after the wiring is completed, reducing the amount of dust and other impurities entering the wiring hole and damaging the electricity meter. The locking component locks the rotating plate, reducing the risk of the copper lug becoming loose after installation.

[0012] Optionally, the locking element includes a locking rod fixed to the watch body, the end of the locking rod being elastically and insertably provided with a pin, the end of the pin being fixedly provided with a wedge block, and the wedge block being movably fitted with the rotating plate.

[0013] By adopting the above technical solution, when it is necessary to open the wiring hole, pull the pin to move the wedge block away from the rotating plate, and then rotate the rotating plate to move it away from the locking rod. After the positioning component positions the copper lug, rotate the rotating plate to make the rotating plate abut against the wedge block. The wedge block drives the pin to move, and the rotating plate rotates into the locking rod. The elastic pin returns to its original position and fixes the rotating plate, reducing the risk of the copper lug loosening due to the rotation of the rotating plate after installation.

[0014] Optionally, the rotating plate has a communication port, which corresponds to the wiring hole.

[0015] By adopting the above technical solution, after the wiring is completed, the cable passes through the connecting port and extends into the meter body. The connecting port fits against the cable, and the rotating plate seals the wiring hole, reducing the entry of external dust and other impurities into the wiring hole and improving the service life of the electricity meter.

[0016] Optionally, the positioning element includes a positioning plate slidably disposed within the wiring hole, the sliding direction of the positioning plate being parallel to the width direction of the meter body, and two L-shaped positioning rods slidably and elastically disposed on the positioning plate.

[0017] By adopting the above technical solution, rotating the rotating plate opens the wiring hole and simultaneously unlocks the positioning plate. Then, sliding the positioning plate causes the L-shaped positioning rod to move along the width of the meter body. After the positioning plate is in place, the L-shaped positioning rod extends out of the wiring hole. The copper lug is then placed between the two L-shaped positioning rods, and the two L-shaped positioning plates clamp and fix the copper lug in the middle of the positioning plate. Sliding the positioning plate again moves the copper lug into the wiring hole, aligning the mounting hole on the copper lug with the clamping post. The two elastically positioned L-shaped positioning rods on the positioning plate ensure that the copper lug is always centered on the positioning plate, thus aligning the mounting hole on the copper lug with the clamping post, reducing the risk of misalignment between the copper lug and the clamping post, and improving the efficiency of installing the copper lug.

[0018] Optionally, a positioning groove is provided on the side wall of the L-shaped positioning rod, and the L-shaped positioning rod is movably fitted with the copper lug.

[0019] By adopting the above technical solution, since the copper lug is a thin sheet of copper, the positioning process improves the stability of the copper lug on the L-shaped positioning rod and reduces the risk of the copper lug falling off when the positioning plate is moved.

[0020] Optionally, the watch body has a movable groove, the positioning plate passes through the movable groove and is movably fitted with the movable groove, the positioning plate has a sliding groove, and the L-shaped positioning rod passes through the sliding groove.

[0021] By adopting the above technical solutions, the moving groove improves the stability of the positioning rod during movement, and the sliding groove improves the stability of the L-shaped positioning rod during movement.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. During the wiring process of the electricity meter, pull out the pin to move the wedge block away from the fixed post, rotate the rotating plate, the rotating plate drives the rotating rod to rotate, the rotating rod drives the gear to rotate, the gear drives the rack to move away from the connecting post, and then place the copper lug on the positioning plate, so that the rotating plate returns to its initial state. The rotating plate drives the clamping post to move towards the connecting post, the clamping post passes through the mounting hole of the copper lug and is inserted into the clamping hole of the connecting post. The pin fixes the fixed post, thus completing the wiring work. When wiring in a confined space, the use of tools is reduced, which effectively improves the efficiency of wiring. 2. When the fixed post on the rotating plate moves away from the locking rod, the clamping rod unlocks the positioning plate. Slide the positioning plate so that the L-shaped positioning rod on the positioning plate extends out of the wiring hole. Then place the copper lug between the two L-shaped positioning rods. Under the action of the tension spring, the two L-shaped positioning rods fix the copper lug in the middle position of the positioning plate, which effectively improves the stability of the contact between the copper lug and the connecting post and improves the power transmission effect between the cable and the meter body. 3. When the rotating plate returns to its initial state, the cable passes through the connection port on the rotating plate. The rotating plate blocks the wiring hole, reducing the entry of external dust and other impurities into the electricity meter, effectively improving the service life of the electricity meter. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 It is along Figure 1 A partial cross-sectional view of the structure along line AA in the middle; Figure 3 This is a partial structural schematic diagram of an embodiment of this application.

[0024] Reference numerals: 1. Table body; 11. Display screen; 12. Wiring hole; 13. Moving groove; 14. Receiving groove; 21. Clamping post; 22. Limiting ring; 231. Rack; 232. Gear; 3. Connecting post; 31. Clamping hole; 41. Rotating plate; 411. Connecting port; 412. Fixing post; 42. Rotating rod; 51. Locking rod; 52. Pin; 53. Wedge block; 6. Positioning component; 61. Positioning plate; 611. Sliding groove; 62. L-shaped positioning rod; 621. Positioning groove. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0026] This application discloses a static DC energy meter with independent uplink communication function. (Refer to...) Figure 1-3 A static DC energy meter with independent uplink communication function includes a meter body 1, a display screen 11 on the meter body 1, and buttons below the display screen 11. The length direction of the meter body 1 is parallel to the arrangement direction of the buttons. A wiring hole 12 is opened at the bottom of the meter body 1. A receiving groove 14 is opened inside the meter body 1. A clamping post 21 is slidably arranged in the receiving groove 14. A limit ring 22 is coaxially fixed to the clamping post 21. A connecting post 3 corresponding to the clamping post 21 is fixed in the receiving groove 14. A clamping hole 31 is opened on the connecting post 3 to be inserted and adapted to the clamping post 21. The materials of the limit ring 22, the connecting post 3, and the part of the clamping post 21 between the limit ring 22 and the connecting post 3 are all made of materials with good conductivity such as brass, copper, and tin-plated copper. The connecting post 3 is connected to other components inside the meter body 1. A driving component for moving the clamping post 21 is provided inside the meter body 1. A positioning component 6 for positioning the copper lug is also provided inside the meter body 1.

[0027] The driving component is a rack 231 fixed to the end of the abutment post 21 away from the connecting post 3. A gear 232 that meshes with the rack 231 is rotatably disposed in the receiving groove 14. A slider is fixed to the rack 231. The groove wall of the receiving groove 14 has a sliding groove adapted to the slider. The slider and the sliding groove improve the stability of the rack during movement. A rotating plate 41 is rotatably disposed at the bottom of the watch body 1. A rotating rod 42 is rotatably disposed inside the watch body 1. The rotating rod 42 passes through the watch body 1 and extends into the receiving groove 14. One end of the rotating rod 42 is coaxially fixed to the gear 232, and the other end of the rotating rod 42 is fixed to the rotating plate 41. A fixing post is fixed to the side wall of the rotating plate 41. 412, A locking rod 51 is fixedly connected to the bottom of the meter body 1, and a locking groove is formed between the locking rod 51 and the meter body 1. The locking groove is movably fitted with the fixing post 412. An insertion hole is opened at the end of the locking rod 51, and a pin 52 that is adapted to be inserted into the insertion hole is provided on the locking rod 51. A wedge block 53 is fixedly connected to one end of the pin 52. The fixing post 412 and the wedge block 53 are movably fitted together. A spring is sleeved on the pin 52. A U-shaped connecting port 411 is opened on the rotating plate 41. The connecting port 411 corresponds to the wiring hole 12. A flexible rubber curtain can be installed on the connecting port 411 to reduce the entry of external dust and other impurities into the meter body 1 and improve the service life of the electricity meter.

[0028] When wiring the electricity meter, pull open the pin 52, so that the pin 52 moves along the socket on the locking rod 51 and moves the wedge block 53 into the socket, so that the wedge block 53 moves away from the fixed post 412. The initial state of the rotating plate 41 is when the rotating plate 41 is in the locking groove of the locking rod 51. Rotate the rotating plate 41 and drive the rotating rod 42 to rotate. The rotating rod 42 drives the gear 232 to rotate. The gear 232 drives the rack 231 to move along the length direction of the meter body 1. The rack 231 drives the abutment post 21 to move away from the connecting post 3, and at the same time unlocks the positioning member 6. Then slide the positioning member 6 to move the positioning member 6 to the wiring hole 12. Place the copper lug on the positioning member 6. Slide the positioning member 6 again. The positioning member 6 drives the copper lug to extend into the wiring hole 12 and make the mounting hole of the copper lug face the abutment post 21.

[0029] After the positioning component 6 positions the copper lug, the rotating plate 41 is rotated again to return it to its initial state. As the rotating plate 41 rotates, it drives the clamping post 21 through the mounting hole of the copper lug, causing the copper lug to detach from the positioning component 6. The clamping post 21 continues to move and inserts into the clamping hole 31 of the connecting post 3. The limiting ring 22 on the clamping post 21 clamps and fixes the copper lug to the connecting post 3. Simultaneously, the fixing post 412 on the rotating plate 41 abuts against the wedge block 53 on the pin 52, compressing the spring on the pin 52. When the fixing post 412 rotates into the locking groove, under the elastic force of the spring, the pin 52 drives the wedge block 53 to move and... The fixing post 412 is fixed so that the rotating plate 41 is fixed on the locking rod 51, reducing the risk of the copper lug and connecting post 3 becoming loose after the wiring is completed, thus improving the stability of the wiring. This device fixes the copper lug on the cable to the connecting post 3 with the cooperation of the rotating plate 41 and the positioning part 6 without the use of screwdrivers or other tools, thus completing the wiring work. It effectively improves the installation efficiency of the electricity meter in narrow installation spaces. When replacing the cable, the old cable can be removed and the new cable can be installed by rotating the rotating plate 41 and the sliding positioning part 6, improving the efficiency of replacement.

[0030] Reference Figure 1-3The positioning component 6 is a positioning plate 61 that is slidably set on the watch body 1. The watch body 1 has a moving groove 13. The positioning plate 61 passes through the moving groove 13. A sealing cover or a foldable sealing curtain can be set on the moving groove 13 to reduce dust from entering the receiving groove 14 from the moving groove 13. Two sliding grooves 611 are symmetrically set on the positioning plate 61. An L-shaped positioning rod 62 is slidably set in the sliding groove 611. One end of the L-shaped positioning rod 62 that passes through the sliding groove 611 is connected to a tension spring. The other end of the tension spring is fixed to the positioning plate 61. The L-shaped positioning rod 62 has a positioning groove 621 that is adapted to the copper lug. The shortest distance between the two L-shaped positioning rods 62 is greater than or equal to the diameter of the limiting ring 22, which reduces the influence of the L-shaped positioning rod 62 on the movement of the abutment column 21.

[0031] When the rotating plate 41 is separated from the locking rod 51, the rotating plate 41 drives the abutting post 21 away from the connecting post 3. At the same time, the abutting post 21 unlocks the positioning plate 61. The positioning rod is slid to move along the moving groove 13 to the wiring hole 12. At this time, the L-shaped positioning rod 62 extends out of the wiring hole 12. Then, the copper lug is placed between the two L-shaped positioning rods 62. Under the action of the tension spring, the two L-shaped positioning rods 62 fix the copper lug in the center position of the positioning plate 61. Then, the positioning plate 61 is slid so that it is located at the end of the moving groove 13 away from the rotating plate 41, and the cable is slightly pulled. The copper lug is brought into contact with the end of the L-shaped positioning rod 62, and the mounting hole of the copper lug is aligned with the clamping post 21. The rotating plate 41 is rotated to return to its initial state, and the clamping post 21 passes through the mounting hole of the copper lug. The limiting ring 22 on the clamping post 21 abuts against the copper lug, and the two L-shaped positioning rods 62 move away from each other, thereby causing the copper lug to detach from the L-shaped positioning rod 62. The clamping post 21 is inserted into the clamping hole 31 of the connecting post 3, fixing the copper lug on the connecting post 3. This improves the accuracy between the copper lug and the connecting post 3 and effectively improves the wiring quality of the electricity meter.

[0032] The implementation principle of the static DC energy meter with independent uplink communication function in this application embodiment is as follows: When installing the energy meter, pull open the pin 52 to move the wedge block 53 away from the fixed post 412, rotate the rotating plate 41, the rotating plate 41 drives the rotating rod 42 to rotate, the rotating rod 42 drives the gear 232 to rotate, the gear 232 drives the rack 231 to move, and the pressing post 21 moves along the length direction of the meter body 1, so that the pressing post 21 moves away from the connecting post 3. Then slide the positioning plate 61 to make the L-shaped positioning rod 62 extend out of the wiring hole 12, and place the copper lug between the two L-shaped positioning rods 62. Slide the positioning plate 61 to make the L-shaped positioning rod 62 slide into the wiring hole 12, pull the cable, and make the copper lug and the side wall of the L-shaped positioning rod 62... At this point, the clamping post 21 is aligned with the mounting hole of the copper lug. Then, rotating the rotating plate 41 returns it to its initial position. The rotating plate 41 drives the clamping post 21 through the mounting hole of the copper lug, and the limiting ring 22 abuts against the copper lug. The clamping post 21 is inserted into the clamping hole 31 of the connecting post 3, fixing the copper lug onto the connecting post 3. The fixing post 412 on the rotating plate 41 rotates into the locking groove, and the pin 52 fixes the fixing post 412 in the locking groove, thus completing the wiring work. When installing in confined spaces, this device can complete the wiring work through the cooperation between the rotating plate 41 and the positioning plate 61. Compared to the existing technology that uses screwdrivers and other tools for installation, this shortens the installation time and effectively improves installation efficiency.

[0033] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A static DC energy meter with independent uplink communication function, comprising a meter body (1), wherein a display screen (11) is provided on the meter body (1), characterized in that: A clamping post (21) is slidably disposed inside the watch body (1). The moving direction of the clamping post (21) is parallel to the length direction of the watch body (1). A connecting post (3) is disposed inside the watch body (1). A clamping hole (31) is opened on the connecting post (3) to be inserted and adapted to the clamping post (21). A limit ring (22) is fixedly connected to the clamping post (21). A receiving groove (14) is opened at the bottom of the watch body (1) to accommodate the clamping post (21) and the connecting post (3). A wiring hole (12) is opened on the watch body (1). The wiring hole (12) is connected to the receiving groove (14). A driving component is provided on the watch body (1) to drive the clamping post (21) to slide. A positioning component (6) for positioning the copper lug is provided in the receiving groove (14).

2. The static DC energy meter with independent uplink communication function according to claim 1, characterized in that: The driving component includes a rack (231) fixed to one end of the abutment post (21) away from the connecting post (3), and a gear (232) that meshes with the rack (231) is rotatably disposed in the receiving groove (14), and the rack (231) is in movable contact with the groove wall of the receiving groove (14).

3. The static DC energy meter with independent uplink communication function according to claim 2, characterized in that: A rotating rod (42) is rotatably disposed inside the watch body (1). The rotation axis of the rotating rod (42) is parallel to the width direction of the watch body (1). One end of the rotating rod (42) is coaxially fixed to the gear (232). The other end of the rotating rod (42) passes through the watch body (1) and is fixed to a rotating plate (41). A locking member for locking the rotating plate (41) is provided on the watch body (1).

4. The static DC energy meter with independent uplink communication function according to claim 3, characterized in that: The locking component includes a locking rod (51) fixed to the watch body (1), the end of the locking rod (51) is elastically and inserted with a pin (52), the end of the pin (52) is fixed with a wedge block (53), a fixing post (412) is fixed to the rotating plate (41), and the wedge block (53) and the fixing post (412) are movably fitted together.

5. The static DC energy meter with independent uplink communication function according to claim 3, characterized in that: The rotating plate (41) has a connecting port (411) which corresponds to the wiring hole (12).

6. The static DC energy meter with independent uplink communication function according to claim 1, characterized in that: The positioning component (6) includes a positioning plate (61) that is slidably disposed in the wiring hole (12). The sliding direction of the positioning plate (61) is parallel to the width direction of the body (1). Two L-shaped positioning rods (62) are slidably and elastically disposed on the positioning plate (61).

7. The static DC energy meter with independent uplink communication function according to claim 6, characterized in that: The L-shaped positioning rod (62) has a positioning groove (621) on its side wall, and the L-shaped positioning rod (62) is in movable contact with the copper nose.

8. The static DC energy meter with independent uplink communication function according to claim 6, characterized in that: The body (1) has a moving groove (13), the positioning plate (61) passes through the moving groove (13) and is movably fitted with the moving groove (13), the positioning plate (61) has a sliding groove (611), and the L-shaped positioning rod (62) passes through the sliding groove (611).

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