Modular electricity metering box

Abstract

The application discloses the technical field of electric energy metering box, and discloses a modular electric energy metering box, which comprises a plurality of module box bodies, a monitoring box is arranged on the module box body at the top of the modular electric energy metering box, vertical grooves are arranged on the side surfaces of the module box bodies, vertical plates are arranged in the vertical grooves, a sealing strip is arranged between two modular electric energy metering boxes, vertical plates are arranged at the two ends of the sealing strip, a base is arranged at the bottom of the modular electric energy metering box, and the base is in plug-in connection with the vertical plates; wherein the back side of the module box body is provided with clamping grooves at the upper end and the lower end, I-shaped rods are arranged in the clamping grooves, and the I-shaped rods are connected with the module box body through bolts. The modular electric energy metering box is characterized in that the module box bodies with the same length are designed in a modular mode, the module box bodies are quickly assembled and connected according to the requirements of customers, the corresponding size of the metering equipment is formed, the production is simple, the cost is reduced, the manual assembly operation is single, the error can be reduced, and the product quality can be ensured.

Description

Technical Field

[0001] This invention relates to the field of modular energy metering box technology, specifically a modular energy metering box. Background Technology

[0002] The assembly of modular energy metering boxes requires that the box frame, metering modules (such as current transformers and meter slots), and incoming and outgoing terminals all adopt uniform dimensions and interfaces, similar to "building blocks" assembly.

[0003] However, most existing cabinet shells have detachable panels, and internal guide rails, slots and other fixing devices are pre-installed before assembly. This makes it difficult to adjust the size of the cabinet to meet different customer needs. The size of the panels and cabinet boards needs to be customized to achieve the corresponding assembly, which is not flexible and has a large human error in assembly.

[0004] Therefore, there is a need to design a modular energy metering box that is easy to manufacture and assemble. Summary of the Invention

[0005] The purpose of this invention is to provide a modular power metering box to solve the problems in the prior art.

[0006] The objective of this invention can be achieved through the following technical solutions: A modular energy metering box includes several modular boxes. A monitoring box is provided on the top of the modular energy metering box. A vertical groove is provided on the side of the modular box, and a vertical plate is installed in the vertical groove. A top sealing strip is provided between two modular energy metering boxes, and a vertical plate is installed through both ends of the top sealing strip. A base is provided at the bottom of the modular energy metering box, and the base is plugged into the vertical plate. The module housing has slots at the top and bottom of its back side, and I-shaped rods are installed in the slots. The I-shaped rods are connected to the module housing by bolts passing through them.

[0007] Furthermore, the module housing is connected to the monitoring box and the base via an I-beam; The base has drainage grooves on both sides, the module box has through holes, and heat-conducting fins are provided between the two upright plates. Heat exchange tubes are provided on the heat-conducting fins.

[0008] Furthermore, a motor is fixedly installed inside the monitoring box, and a screw is fixedly installed at the output end of the motor, with the screw passing through the through hole; A cover is installed above the through hole by screws. A symmetrically distributed base block is fixed inside the cover. A spring is fixed on the base block. A movable cover slides inside the cover. Both ends of the movable cover are connected to the spring. A threaded sleeve is fixed below the movable cover and is threadedly connected to the screw.

[0009] Furthermore, the threaded sleeve has at least one control rod on its side, and at least one side shaft is fixed on the control rod. Both the side shaft and the control rod are made of conductive material, and an insulating rod for disconnecting the electrical resistance is provided in the middle of the control rod. The control rod is provided with at least one riveting block, and a contact point is fixed on the riveting block. A limiting groove is provided below the control rod.

[0010] Furthermore, a circuit breaker is fixed inside the module box. The upper end of the circuit breaker is connected to a power output busbar for supplying power to the equipment outside the cabinet. A conductive copper busbar is installed at the lower end of the circuit breaker. A swing contact is connected to the conductive copper busbar. A power supply copper busbar for supplying power to the cabinet is correspondingly provided below the swing contact. The contacts are provided in correspondence with the oscillating contacts; The swing contact is provided with a sliding groove, which is slidably connected to the side shaft.

[0011] Furthermore, the conductive copper busbar of the circuit breaker is provided with an arc-shaped slot, which is movably connected to one end of the swing contact.

[0012] Furthermore, the side of the power supply copper busbar is provided with a U-shaped block, which is installed on the inner cabinet plate of the module box by screws. The U-shaped block is used to limit the control rod and the swing contact.

[0013] Furthermore, a bracket is fixed to the outside of the U-shaped block, and temperature sensors are symmetrically installed on the bracket, with the input end of the temperature sensor facing the connection between the swing contact and the power supply copper busbar.

[0014] Furthermore, a grounding plate is fixed on the U-shaped block, and the grounding plate is grounded through a grounding wire. Grounding contacts are fixed on both sides of the grounding plate, and the contacts are in contact with the grounding contacts to realize the grounding of the swing contact. The U-shaped block is fixedly provided with a limiting stop shaft, and the limiting groove cooperates with the limiting stop shaft.

[0015] Furthermore, an auxiliary frame is fixedly provided on the back side of the U-shaped block. The auxiliary frame includes a main body, a second motor is fixedly provided on the main body, a pressure rod is fixedly provided at the output end of the second motor, and sleeves are fixed at both ends of the main body. A push shaft is slidably provided inside the sleeves. The push shaft faces the swing contact, and a second spring is fixed to the rear end of the push shaft. The second spring is connected to the main body, and an inclined surface is provided on the push shaft. The pressure rod cooperates with the inclined surface.

[0016] The beneficial effects of this invention are: 1. The present invention provides a modular electricity metering box. By adopting a modular design, modular boxes with the same elongation specifications can be quickly assembled and connected according to customer needs to form metering devices of corresponding sizes. The production is simple and the cost is reduced. The manual assembly operation is simple, which can reduce errors and ensure product quality. 2. The present invention provides a modular energy metering box with a simple structure. The adjacent metering box modules are sealed to reduce the possibility of dust and moisture entering. At the same time, an external heat dissipation structure can be installed to improve the heat dissipation requirements of the cabinet. It is flexible and versatile, with a wide range of applications, suitable for most power distribution environments. It also has an automatic dehumidification function, making it multifunctional. Attached Figure Description

[0017] The invention will now be further described with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of the modular power metering box of the present invention; Figure 2 This is a schematic diagram of the rear structure of the modular energy metering box of the present invention; Figure 3 This is a partial structural schematic diagram of the modular energy metering box of the present invention; Figure 4 This is a schematic diagram of the internal structure of the monitoring box of the present invention; Figure 5 This is a schematic diagram of the internal structure of the monitoring box of the present invention; Figure 6 This is the present invention. Figure 5 Enlarged structural diagram at point A in the middle; Figure 7 This is a schematic diagram of the internal structure of the monitoring box of the present invention; Figure 8 This is the present invention. Figure 7 Enlarged structural diagram at point B; Figure 9 This is a schematic diagram of the internal circuit breaker structure of the present invention. Figure 10 This is the present invention. Figure 9 Enlarged structural diagram at point C; Figure 11 This is a schematic diagram of the circuit breaker of the present invention; Figure 12 This is a schematic diagram of the auxiliary frame of the present invention.

[0019] Explanation of reference numerals in the attached figures: 1. Module housing; 2. Motor 1; 3. Circuit breaker; 4. U-shaped block; 5. Auxiliary frame; 10. Monitoring box; 11. Top sealing strip; 12. Vertical plate; 13. Base; 14. Slot; 15. I-shaped rod; 16. Drainage groove; 17. Heat-conducting fins; 18. Heat exchange tube; 19. Through hole; 21. Screw; 22. Cover; 23. Bottom block; 24. Spring 1; 25. Moving cover; 26. Threaded sleeve; 27. Control rod; 28. Side shaft; 29. ​​Insulation 31. Power busbar; 32. Conductive copper busbar; 33. Swing contact; 34. Power supply copper busbar; 35. Slide groove; 36. Arc-shaped slot; 41. Bracket; 42. Temperature sensor; 43. Grounding plate; 44. Grounding contact; 45. Limiting stop shaft; 50. Motor II; 51. Main body; 52. Sleeve; 53. Push shaft; 54. Inclined surface; 56. Spring II; 57. Pressure rod; 270. Riveting block; 271. Contact; 272. Limiting groove. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0021] A modular power metering box, such as Figures 1-3 As shown, the modular energy metering box is formed by combining multiple modular boxes 1, and the upper and lower end faces of adjacent modular boxes 1 are connected by rivets or screws.

[0022] A monitoring box 10 is installed on the module box 1 located on top of the modular energy metering box. A vertical groove is opened on the side of the module box 1, and a vertical plate 12 is slid into the vertical groove. A top sealing strip 11 is installed at the top between the two modular energy metering boxes. The two ends of the top sealing strip 11 are installed through the vertical plate 12 to seal the gap between the two modular energy metering boxes.

[0023] A base 13 is provided at the bottom of the modular energy metering box. The base 13 is plugged into the upright plate 12. The upper and lower ends of the back side of the module box 1 are provided with slots 14. I-shaped rods 15 are installed in the slots 14. When the slots 14 on two adjacent module boxes 1 are connected, the I-shaped rods 15 are simultaneously inserted into the slots 14. After the bolts pass through the I-shaped rods 15, they are connected and fixed to the module box 1.

[0024] Furthermore, the module housing 1 is connected to the monitoring box 10 and the base 13 by an I-shaped rod 15, thereby connecting and fixing the base 13, the monitoring box 10 and the module housing 1.

[0025] The module housing 1 has a pre-set through hole connecting to the outside. The heat-conducting fins 17 can be detachably installed between the two upright plates 12. When in use, a circulating heat exchange medium can be introduced into the heat exchange tube as needed to quickly dissipate heat inside the metering box and meet the heat dissipation requirements when running under heavy load.

[0026] The base 13 has drainage grooves 16 on both sides to drain water that seeps into the bottom of the upright plate 12 and discharges it from the rear of the modular energy metering box. The module box 1 has through holes 19 and heat-conducting fins 17 are provided between the two upright plates 12. Heat exchange tubes 18 are provided on the heat-conducting fins 17 to exchange heat with the heat-conducting fins 17 and reduce the heat dissipation of the heat-conducting fins 17. The heat-conducting fins 17 are attached to the side of the module box 1 to dissipate heat from the module box 1.

[0027] like Figure 4 , Figure 5 , Figure 6 As shown, a motor 2 is fixedly connected inside the monitoring box 10. A screw 21 is fixedly connected to the output end of the motor 2. The screw 21 passes through the through hole 19. A cover 22 is fixedly installed above the through hole 19 by screws. A symmetrically distributed base block 23 is fixedly provided inside the cover 22. A spring 24 is fixedly connected to the base block 23. A movable cover 25 is slidably connected inside the cover 22. The two ends of the movable cover 25 are fixedly connected to the spring 24.

[0028] Among them, a threaded sleeve 26 is fixedly connected below the movable cover 25. The threaded sleeve 26 is fitted on the outside of the screw 21 and is threadedly connected to the screw 21.

[0029] At least one control lever 27 is provided on the side of the threaded sleeve 26, and the control lever 27 is provided in accordance with the number of circuit breakers 3 that need to be controlled.

[0030] Circuit breaker 3 is fixed inside module housing 1, and the upper end of circuit breaker 3 is connected to power output busbar 31. A conductive copper busbar 32 is installed at the lower end of circuit breaker 3. A swing contact 33 is connected to the conductive copper busbar 32. A power supply copper busbar 34 is correspondingly arranged below the swing contact 33. The power supply copper busbar 34 supplies power to the cabinet, while the power output busbar 31 supplies power to the equipment outside the cabinet.

[0031] like Figure 7 , Figure 8 , Figure 9 , Figure 10 As shown, at least one side shaft 28 is fixedly provided on the control rod 27. The side shaft 28 is made of conductive material, such as copper. An insulating rod 29 is provided in the middle of the control rod 27. The front end of the insulating rod 29 is connected to another section of the control rod 27. The control rod 27 is made of conductive material. Its middle part is separated by the insulating rod 29 to form two independent conductive circuits.

[0032] At least one riveting block 270 is provided on the control lever 27, and a contact 271 is fixedly provided on the riveting block 270. The number of contacts 271 corresponds to the number of swing contacts 33.

[0033] The swing contact 33 is provided with a sliding groove 35, which is slidably connected to the side shaft 28. When the side shaft 28 moves vertically with the threaded sleeve 26, the sliding groove 35 and the side shaft 28 cooperate to drive the swing contact 33 to rotate and move, thereby connecting and disconnecting with the power supply copper busbar 34, forming a conductive path in the closed state. When the control rod 27 moves up, the swing contact 33 disengages from the power supply copper busbar 34, and the corresponding circuit is disconnected, realizing the closing and opening control of the corresponding circuit breaker, forming double disconnection protection and improving operational safety.

[0034] Furthermore, a U-shaped block 4 is provided on the side of the power supply copper busbar 34. The U-shaped block 4 is installed on the inner cabinet plate of the module box 1 by screws. The U-shaped block 4 limits the control rod 27 and the swing contact 33 to prevent horizontal deviation.

[0035] A bracket 41 is fixedly installed on the outside of the U-shaped block 4. Temperature sensors 42 are symmetrically installed on the bracket 41. The input end of the temperature sensor 42 faces the connection between the swing contact 33 and the power supply copper busbar 34 to monitor the heat change at the connection. When a short circuit occurs, heat accumulates at the connection, which can cause damage. The temperature sensor 42 is used to monitor and prevent this.

[0036] A grounding plate 43 is fixedly installed on the U-shaped block 4. The grounding plate 43 is grounded through a grounding wire. Grounding contacts 44 are fixed on both sides of the grounding plate 43. When the control rod 27 moves upward, it causes the swing contact 33 to disengage from the power supply copper busbar 34. After the contact 271 on the control rod 27 contacts the grounding contact 44, the grounding of the swing contact 33 and the side shaft 28 is completed, ensuring that the maintenance and repair of the external equipment can be safely completed when the power is off.

[0037] A limiting stop shaft 45 is fixed inside the U-shaped block 4. A limiting groove 272 is provided below the control rod 27. The limiting groove 272 cooperates with the limiting stop shaft 45. At this time, the swing contact 33 is in place, completing the contact and conduction with the power supply copper busbar 34, effectively preventing the control rod 27 from colliding with the U-shaped block 4.

[0038] like Figure 10 , Figure 11 , Figure 12As shown, an arc-shaped slot 36 is provided on the conductive copper busbar 32 of the circuit breaker 3. The arc-shaped slot 36 is movably connected to one end of the swing contact 33 to complete the current transmission. An auxiliary frame 5 is fixedly provided on the back side of the U-shaped block 4. The auxiliary frame 5 includes a main body 51. A second motor 50 is fixedly provided on the main body 51. A pressure rod 57 is fixedly provided at the output end of the second motor 50. Sleeves 52 are fixed at both ends of the main body 51. A push shaft 53 is slidably provided inside the sleeve 52. The push shaft 53 is oriented towards the swing contact 33. When the temperature at the connection point between the swing contact 33 and the power supply copper busbar 34 is too high and exceeds the safety limit, the push shaft 53 is pushed towards the swing contact 33 in the connection position, causing the swing contact 33 to bend and temporarily disengage from the power supply copper busbar 34, thus disconnecting the circuit and maintaining circuit safety and the service life of the equipment.

[0039] A second spring 56 is fixedly connected to the rear end of the push shaft 53. The second spring 56 is connected to the side of the main body 51. Its function is to restore the position of the push shaft 53. An inclined surface 54 is provided on the push shaft 53. When the pressure rod 57 cooperates with the inclined surface 54, it will control the push shaft 53 to move towards the swing contact 33.

[0040] During work: The modular power metering box is assembled by combining the various modular boxes 1. The number of boxes can be combined according to actual needs. The assembly is convenient, and the modular design makes the production cost controllable. The process is simple and the use is highly flexible.

[0041] Furthermore, the power metering box dissipates heat from the inside of the box through heat-conducting fins 17 and heat exchange pipes 18, and conducts heat from the side of the module box 1, resulting in stable heat dissipation.

[0042] Moreover, it is equipped with intelligent power-off grounding function. When a single circuit needs to be closed or opened in the power distribution circuit inside the box, motor 2 is started. Motor 2 drives screw 21 to rotate. The rotation of screw 21 drives threaded sleeve 26 to move along the axial direction of screw 21. When the circuit needs to be tripped, the control screw 21 rotates to move the threaded sleeve 26 upward. The threaded sleeve 26 drives the control rod 27 to move upward synchronously. The side shaft 28 on the control rod 27 drives the swing contact 33 to swing through the slide groove 35, so that the swing contact 33 disengages from the power supply copper busbar 34, and the circuit is disconnected. When the control rod 27 moves to the upper position, the contact 271 on the control rod 27 contacts the grounding contact 44 on the grounding plate 43, so that the swing contact 33 on the corresponding circuit side is grounded, further improving the safety of power outage maintenance. When the temperature sensor 42 detects that the temperature at the connection point between the swing contact 33 and the power supply copper busbar 34 exceeds a preset threshold, the second motor 50 is started. The second motor 50 drives the pressure rod 57 to rotate and press down the corresponding push shaft 53. The pressure rod 57 squeezes the inclined surface 54 on the push shaft 53, pushing the push shaft 53 to move towards the swing contact 33. The push shaft 53 pushes the swing contact 33 to bend and disengage from the power supply copper busbar 34, realizing automatic power-off in case of overheating, avoiding overheating and burning at the connection point, and improving overall safety.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A modular energy metering box, characterized in that, The modular energy metering box includes several modular boxes (1). A monitoring box (10) is provided on the top of the modular energy metering box (1). A vertical groove is provided on the side of the modular box (1), and a vertical plate (12) is installed in the vertical groove. A top sealing strip (11) is provided between two modular energy metering boxes. The two ends of the top sealing strip (11) are connected through the vertical plate (12). A base (13) is provided at the bottom of the modular energy metering box. The base (13) is plugged into the vertical plate (12). The module box (1) has slots (14) on the upper and lower ends of the back side. An I-shaped rod (15) is installed in the slot (14) and is connected to the module box (1) by bolts passing through the I-shaped rod (15).

2. The modular energy metering box according to claim 1, characterized in that, The module housing (1) is connected to the monitoring box (10) and the base (13) by an I-shaped rod (15); The base (13) has drainage grooves (16) on both sides, the module box (1) has through holes (19), the two upright plates (12) have heat-conducting fins (17), and the heat-conducting fins (17) have heat exchange tubes (18).

3. A modular energy metering box according to claim 2, characterized in that, The monitoring box (10) is equipped with a motor (2), and the output end of the motor (2) is equipped with a screw (21). The screw (21) is installed through the through hole (19). A cover (22) is installed above the through hole (19) by screws. A symmetrically distributed base block (23) is fixed inside the cover (22). A spring (24) is fixed on the base block (23). A movable cover (25) slides inside the cover (22). The two ends of the movable cover (25) are connected to the spring (24). A threaded sleeve (26) is fixed below the movable cover (25). The threaded sleeve (26) is threadedly connected to the screw (21).

4. A modular energy metering box according to claim 3, characterized in that, The threaded sleeve (26) has at least one control rod (27) on its side. At least one side shaft (28) is fixed on the control rod (27). Both the side shaft (28) and the control rod (27) are made of conductive material. An insulating rod (29) for disconnecting the electrical circuit is provided in the middle of the control rod (27). The control lever (27) is provided with at least one riveting block (270), and a contact point (271) is fixed on the riveting block (270). A limiting groove (272) is provided below the control lever (27).

5. A modular energy metering box according to claim 4, characterized in that, A circuit breaker (3) is fixed inside the module housing (1). The upper end of the circuit breaker (3) is connected to a power supply busbar (31) for supplying power to the equipment outside the cabinet. A conductive copper busbar (32) is installed at the lower end of the circuit breaker (3). A swing contact (33) is connected to the conductive copper busbar (32). A power supply copper busbar (34) for supplying power to the cabinet is provided below the swing contact (33). The contact point (271) is correspondingly provided with the oscillating contact (33); The swing contact (33) is provided with a sliding groove (35), which is slidably connected to the side shaft (28).

6. A modular energy metering box according to claim 5, characterized in that, The circuit breaker (3) has an arc-shaped slot (36) on its conductive copper busbar (32), and the arc-shaped slot (36) is movably connected to one end of the swing contact (33).

7. A modular energy metering box according to claim 5, characterized in that, The power supply copper busbar (34) has a U-shaped block (4) on its side. The U-shaped block (4) is installed on the inner cabinet plate of the module box (1) by screws. The U-shaped block (4) is used to limit the control rod (27) and the swing contact (33).

8. A modular energy metering box according to claim 7, characterized in that, A bracket (41) is fixed on the outside of the U-shaped block (4), and temperature sensors (42) are symmetrically installed on the bracket (41). The input end of the temperature sensor (42) faces the connection between the swing contact (33) and the power supply copper busbar (34).

9. A modular energy metering box according to claim 8, characterized in that, A grounding plate (43) is fixed on the U-shaped block (4). The grounding plate (43) is grounded through a grounding wire. Grounding contacts (44) are fixed on both sides of the grounding plate (43). The contacts (271) and the grounding contacts (44) are in contact to realize the grounding of the swing contact (33). The U-shaped block (4) is fixedly provided with a limiting stop shaft (45), and the limiting groove (272) cooperates with the limiting stop shaft (45).

10. A modular energy metering box according to claim 8, characterized in that, An auxiliary frame (5) is fixedly provided on the back side of the U-shaped block (4). The auxiliary frame (5) includes a main body (51). A second motor (50) is fixedly provided on the main body (51). A pressure rod (57) is fixedly provided at the output end of the second motor (50). A sleeve (52) is fixed at both ends of the main body (51). A push shaft (53) is slidably provided inside the sleeve (52). The push shaft (53) faces the swing contact (33), and a second spring (56) is fixed at the rear end of the push shaft (53). The second spring (56) is connected to the main body (51). An inclined surface (54) is provided on the push shaft (53), and the pressure rod (57) cooperates with the inclined surface (54).

Images