A smart transformer area fusion terminal capable of distributed energy management

Abstract

This application provides a smart distribution area convergence terminal for distributed energy management, including a terminal body with a display screen and a plug-in interface with a guide device; it also includes a distributed energy management module, which is movably plugged into the plug-in interface and electrically adapted to the terminal body; a locking component is fixedly provided on one side of the plug-in interface to lock the distributed energy management module, and the distributed energy management module is electrically connected to the energy meter. This application significantly improves the operation and maintenance efficiency, connection reliability, and heat dissipation performance of the distributed energy terminal through a modular plug-in structure and a dual-level locking design. Operators can perform hot-plugging of the module by hand, eliminating power outage time; at the same time, the vertical layout of the two modules creates a convection effect, resulting in faster heat dissipation of the metering chip and lower temperature compared to traditional solutions.

Description

Technical Field

[0001] This application relates to the field of power equipment technology, specifically to an intelligent distribution area integration terminal for distributed energy management, and more particularly to an integrated device for an energy meter and a distributed energy management module with a modular and replaceable structure, which achieves quick plugging and unplugging and stable connection of the module through a mechanical locking mechanism. Background Technology

[0002] With the large-scale integration of distributed energy resources (such as photovoltaic and energy storage systems) into power distribution networks, traditional electricity meters can no longer meet the needs for real-time monitoring and coordinated control of distributed power sources. The current mainstream solution is to integrate a fixed energy management module inside the electricity meter, but this design has significant drawbacks: Difficult module replacement: When the energy management module fails or needs to be upgraded, the entire electricity meter must be disassembled, resulting in high maintenance costs and long power outage times.

[0003] Insufficient connection reliability: The module and the energy meter are fixed by welding or screws. Frequent thermal expansion and contraction can easily cause the contact terminals to loosen, resulting in interruption of data monitoring.

[0004] Limited heat dissipation performance: The solidified management module is laid out close to the PCB board of the electricity meter. Its high operating temperature will accelerate the aging of the electronic components of the electricity meter, and the closed structure hinders heat dissipation.

[0005] Existing improvement solutions attempt to connect the management module through an external expansion interface, but lack an effective physical locking mechanism. The module is fixed only by the friction of the plug, which is prone to loosening in a vibration environment. Furthermore, there is no guiding structure during the module insertion and removal process, which can easily lead to contact misalignment and damage. Therefore, the traditional spring pin single-point locking cannot adapt to modules of different thicknesses and cannot be locked a second time.

[0006] Therefore, there is an urgent need for a terminal architecture that balances rapid replacement, connection stability, and heat dissipation optimization, so as to ensure the continuity of distributed energy data monitoring while reducing the complexity of operation and maintenance. Utility Model Content

[0007] This application provides a smart distribution area convergence terminal for distributed energy management, which solves the problems of difficult module replacement, insufficient connection reliability and limited heat dissipation performance in the existing technology.

[0008] The following technical solution is adopted in this application: a smart distribution area convergence terminal for distributed energy management, including a terminal body, a display screen, a plug-in interface, which is fixedly opened inside the terminal body, with one side communicating with the outside, and a guide device provided for the plug-in interface. It also includes a distributed energy management module, which is movably plugged into the interface and electrically adapted to be connected to the terminal body; A locking component is fixedly installed on one side of the interface to lock the distributed energy management module.

[0009] Preferably, the guiding device includes a guide block and a guide groove. The guide block is disposed on the side wall of the plug-in interface, and the distributed energy management module is slidably embedded in the guide block.

[0010] Preferably, the guide groove is located on the side of the distributed energy management module, and the guide groove slides in conjunction with the guide block.

[0011] Preferably, a locking hole is provided on one side of the distributed energy management module, and the locking component is engaged with the locking hole to lock the distributed energy management module.

[0012] Preferably, the locking component has: The box body is fixedly installed on the side wall of the insertion interface, and a locking groove is provided inside it. One side of the locking groove is open to the outside. A pin is slidably disposed in a locking groove, with one end extending outward from the inside of the locking groove. The pin engages with a locking hole to lock the distributed energy management module.

[0013] Preferably, a locking tongue is rotatably provided in the middle of the pin, the axis of rotation of the locking tongue is collinear with the axis of the pin, and the locking tongue can slide in the locking groove along the extension direction of the locking groove.

[0014] Preferably, the locking groove further includes a first locking opening and a second locking opening, and the locking tongue can be rotatably fitted into the first locking opening and the second locking opening respectively; the first locking opening and the second locking opening are located on different sides of the locking groove.

[0015] Preferably, a spring is disposed between the locking tongue and the locking groove, and the spring is initially compressed.

[0016] Preferably, there are two plug interfaces, which are stacked one on top of the other on the same side or opposite sides of the terminal body.

[0017] Preferably, a contact terminal is fixedly provided at one end of the distributed energy management module, and an elastic contact is fixedly provided inside the terminal body. The contact terminal abuts against the elastic contact to electrically connect the terminal body and the distributed energy management module.

[0018] The technical effects of this application are as follows: This application significantly improves the operation and maintenance efficiency, connection reliability, and heat dissipation performance of distributed energy terminals through a modular plug-in structure and a dual-level locking design. Operators can perform hot-swapping of modules by hand, eliminating power outage time. The dual locking lugs (half-lock / full-lock) completely prevent vibration-induced loosening, and the elastic contacts adapt to thermal deformation. Simultaneously, the vertical layout of the dual modules creates a convection effect, resulting in faster heat dissipation of the metering chip and lower temperature compared to traditional solutions. Furthermore, the display screen automatically splits to show multi-source data, improving fault diagnosis efficiency.

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings of the embodiments will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this application, and are not intended to limit this application. Attached Figure Description

[0020] Figure 1 Here is a schematic diagram of the appearance of the intelligent substation convergence terminal of this application: Figure 2 This is a schematic diagram of the assembly of the intelligent substation convergence terminal of this application; Figure 3 This is a schematic diagram of the structure of the distributed energy management module and the locking component in this application; Figure 4 This is a cross-sectional schematic diagram of the locked state of the distributed energy management module and the locking component in this application; Figure 5 This is a schematic diagram of the appearance of the locking component in this application; Figure 6 This is an exploded view of the locking component in this application.

[0021] Explanation of reference numerals in the attached figures: 10. Terminal body; 11. Display screen; 12. Guide block; 13. Flexible contact; 14. Guide device; 20. Plug-in interface; 30. Locking assembly; 31. Housing; 32. Locking groove; 32a. First locking port; 32b. Second locking port; 33. Pin; 34. Locking tongue; 35. Spring; 40. Distributed energy management module; 41. Guide groove; 42. Locking hole; 43. Contact terminal. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the application will be further described in detail below with reference to the accompanying drawings. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] Unless otherwise defined, the technical or scientific terms used in this patent document shall have the ordinary meaning understood by a person skilled in the art to which this application pertains. The terms "first," "second," and similar terms used in this patent specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "an," "a," or "the" do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" indicate that the element or object preceding "comprising" encompasses the element or object listed following "comprising" or its equivalents, and do not exclude other elements or objects. Terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are used only to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. These terms 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, and therefore should not be construed as a limitation of this application.

[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, features in the following embodiments can be combined with each other.

[0027] This patent systematically solves the three major technical challenges of distributed energy terminals—low module replacement efficiency, poor connection reliability, and insufficient heat dissipation—through a modular plug-in structure, a guiding locking mechanism, and an optimized thermal management layout. The following discussion, in conjunction with the accompanying drawings, compares this patented product with existing technologies to demonstrate its technical effectiveness.

[0028] Example 1: Modular Electrical Connection Structure Please see Figures 1-4A through-type insertion interface 20 is opened inside the housing of the terminal body 10, and an elastic contact 13 is fixed on its top. The elastic contact 13 is preferably made of beryllium bronze and has a pre-pressure stroke of 0.8mm.

[0029] The distributed energy management module 40 is mainly used for monitoring distributed energy circuit data, and it can realize energy data measurement and management in the following ways: The module incorporates high-precision voltage / current sensors to collect real-time parameters such as voltage, current, power, and power factor of the photovoltaic inverter and energy storage equipment. It uses an ARM Cortex-M4 processor to calculate power generation, load, and charging / discharging efficiency, and generates energy dispatch strategies. It also integrates an RS485 / PLC communication unit, enabling data upload to the electricity meter's main control unit and cloud platform. Supporting the Modbus protocol, it can monitor equipment anomalies in real-time (such as islanded operation or overload), ultimately displaying alarms on the screen and recording event logs.

[0030] The distributed energy management module 40 has a double row of contact terminals 43 at its insertion end. After the module is inserted, the contact terminals 43 and the elastic contacts 13 elastically abut against each other to form a circuit connection, and the display screen 11 of the terminal body 10 displays the photovoltaic power, energy storage SOC and other data uploaded by the module in real time.

[0031] Furthermore, the guiding device 14 includes a guide block 12 and a guide groove 41. The trapezoidal guide block 12, preferably made of POM material, is fixed on both sides of the insertion interface 20, and an inclined groove is provided at its end to form a guiding function. At the same time, a complementary guide groove 41 is opened on the side wall of the management module 40. When inserted, the module slides in along the inclined surface to form a 0.1mm precision clearance fit, which forcibly constrains the module's Y / Z axis offset.

[0032] In the existing technology, the distributed energy management module 40 is fixed by welding or screws, which requires disassembling the whole meter to replace the module, which is time-consuming. In addition, thermal expansion can cause the terminals of the contact points to loosen, leading to contact instability and high temperature, which can easily cause safety hazards.

[0033] In this technical solution, the cooperation between the guide block 12 and the guide groove 41 limits the sway angle of the distributed energy management module 40 to <0.5°, thereby reducing the contact misalignment rate, ensuring the stability of the electrical connection between the distributed energy management module 40 and the terminal body 10, and also having a self-correcting plug-in / plug-out effect.

[0034] Furthermore, this application adopts elastic adaptive contact, with elastic contact 13 compensating for ±0.3mm thermal deformation displacement, avoiding hard connection failure. Module plugging and unplugging is tool-free and simple to operate, and the replacement time is shortened to within 60 seconds, improving operation and maintenance efficiency. Staff can quickly replace it by hand.

[0035] Meanwhile, in this application, the distributed energy management module 40 and the terminal body 10 adopt a separate layout and heat insulation design to block the heat conduction of the distributed energy management module 40 to the metering chip, thereby improving the heat insulation performance of the device. Example

[0036] Please see Figures 2-6 A Φ3.1mm locking hole 42 is provided on the side wall of the distributed energy management module 40. The housing 31 of the locking component 30 is fixed to the side wall of the plug interface 20, and the pin 33 is pushed horizontally into the locking hole 42 to form a mechanical limit.

[0037] Existing technology uses screws for fixing, which requires tools for disassembly. Under vibration, the distributed energy management module 40 is prone to displacement >2mm, causing the contacts to disconnect.

[0038] In this technical solution, the push-pull type latch 33 allows for manual operation with minimal time consumption. The latch 33 and the locking hole 42 are interference-fitted, which can withstand vibrations from the external environment and irregular acceleration vibrations, ensuring that the displacement of the distributed energy management module 40 is precisely controlled within <0.05mm in variable environments, thus ensuring the stability of electrical component connections. Furthermore, the locking structure completely replaces the traditional screw-fixing method for the distributed energy management module 40, reducing maintenance costs and enabling zero-tool maintenance of the equipment.

[0039] The middle of the pin 33 is hinged to the wedge-shaped locking tongue 34, and the side wall of the locking groove 32 has a first locking port 32a (half-lock position, which can be adjusted to the half-lock position to realize the insertion and replacement of the distributed energy management module 40). And the second locking port 32b (fully locked position, adjusted to the fully locked position, at which time the pin 33 is fully embedded in the locking hole 42, which can realize the complete locking of the distributed energy management module 40).

[0040] Spring 35 preloads the locking tongue 34. When the pin 33 is pushed forward, the locking tongue 34 is sequentially engaged in the first locking stop 32a (half-locked position) and the second locking stop 32b (fully locked position).

[0041] In existing technologies, single-point spring pins cannot prevent vibration-induced loosening. This technical solution has the following advantages: Dual-stage anti-loosening: The semi-locked position allows for temporary maintenance, while the fully locked position requires tools to press and unlock, completely eliminating vibration-induced loosening; and the mechanical locking structure can still maintain the reliability of the connection in extreme environments, ensuring the normal operation of the equipment within a temperature range of 40℃-85℃.

[0042] Please see Figure 1 , Figure 2 As a preferred embodiment of this application: Dual-plug interfaces 20 are stacked vertically on the same side of the terminal body 10, forming a 3.5mm vertical airflow duct after the module is inserted. At this time, the rising hot airflow from the lower module enhances the chimney effect. Compared to traditional equipment heat dissipation problems, where single-module mounting leads to heat accumulation >90℃ and temperature rise in the metering chip causes error drift, the dual-module structure offers the following technical advantages: 1. Thermal isolation optimization: Air gaps block heat conduction, ensuring that the metering chip temperature remains ≤66℃ during full-load operation of both modules; 2. Enhanced natural convection: A vertical air duct is formed between the two distributed energy management modules 40, which generates heat from the distributed energy management modules 40 through convection, thereby improving the heat exchange between the modules; 3. Flexible expansion: Supports parallel access of photovoltaic / energy storage dual modules without the need to add terminal equipment.

[0043] Furthermore, the terminal body 10 automatically identifies the type of inserted module, and the display screen 11 dynamically displays data such as photovoltaic power generation curves and energy storage charging and discharging status in different areas. Existing technologies require external devices to read module data, resulting in time-consuming single operations. In contrast, this solution centrally manages electrical and distributed energy parameters on the display screen, and can display module status in real time, shortening the positioning time.

[0044] In summary, the generational advantages of this application compared to existing technologies are as follows: 1. Breakthrough in maintainability: Traditional solutions require power outage and meter removal to replace modules, while this patent enables hot-swapping with live wires, eliminating power outage time.

[0045] 2. Significantly improved connection reliability: The double locking design is an industry first, solving the persistent problem of "data interruption caused by slight loosening" under vibration environment.

[0046] 3. Reconstructed heat dissipation architecture: Utilizes natural heat dissipation through air gaps, eliminating the need for additional heat sinks and significantly reducing costs compared to air-cooled solutions.

[0047] This patent achieves a three-in-one performance of "second-level replacement, military-grade reliability, and natural heat dissipation" for the first time in a distributed energy terminal through a triple innovation closed loop of mechanical, electrical, and thermal technologies, providing core technical support for the construction of smart grids.

[0048] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A smart distribution area convergence terminal for managing distributed energy, comprising a terminal body (10), wherein the terminal body (10) is provided with a display screen (11), characterized in that, The terminal body (10) is provided with a plug-in interface (20), which is fixedly opened inside the terminal body (10), and one side of it is connected to the outside. The plug-in interface (20) is provided with a guide device (14). It also includes a distributed energy management module (40), which is movably plugged into the plug interface (20) and electrically adapted to be connected to the terminal body (10); A locking component (30) is fixedly provided on one side of the plug-in interface (20), and the locking component (30) is used to lock the distributed energy management module (40). 2.The intelligent terminal for distribution energy management and district convergence according to claim 1, characterized in that, The guiding device (14) includes a guide block (12) and a guide groove (41). The guide block (12) is disposed on the side wall of the plug-in interface (20), and the distributed energy management module (40) is slidably embedded in the guide block (12). 3.The intelligent terminal of the distributed energy management and the smart district fusion according to claim 2, characterized in that, The guide groove (41) is located on the side of the distributed energy management module (40), and the guide groove (41) slides in cooperation with the guide block (12).

4. The intelligent distribution area convergence terminal for distributed energy management according to claim 2, characterized in that, A locking hole (42) is also provided on one side of the distributed energy management module (40), and the locking component (30) is engaged with the locking hole (42) to lock the distributed energy management module (40).

5. The intelligent terminal for the distributed energy management and the smart district convergence according to claim 4, characterized in that, The locking assembly (30) has: The box body (31) is fixedly installed on the side wall of the insertion interface (20), and a locking groove (32) is provided inside it. One side of the locking groove (32) is open to the outside. A pin (33) is slidably disposed in the locking groove (32), and one end of the pin extends outward from the inside of the locking groove (32). The pin (33) is engaged with the locking hole (42) to lock the distributed energy management module (40). 6.The intelligent terminal of the distributed energy management and the smart district fusion according to claim 5, characterized in that, The middle part of the pin (33) is rotatably provided with a locking tongue (34), the rotation axis of the locking tongue (34) is collinear with the axis of the pin (33), and the locking tongue (34) can slide in the locking groove (32) along the extension direction of the locking groove (32).

7. The intelligent terminal for distribution energy management and district convergence according to claim 6, characterized in that, The locking groove (32) further includes a first locking opening (32a) and a second locking opening (32b), and the locking tongue (34) can be rotatably inserted into the first locking opening (32a) and the second locking opening (32b) of the locking groove respectively; the first locking opening (32a) and the second locking opening (32b) of the locking groove are located on different sides of the locking groove (32). 8.The intelligent terminal of the distributed energy management and the smart district fusion according to claim 6, wherein, A spring (35) is disposed between the locking tongue (34) and the locking groove (32), and the spring (35) is initially compressed. 9.The intelligent terminal of the distributed energy management and smart district convergence according to claim 1, characterized in that, There are two plug-in interfaces (20), and the two plug-in interfaces (20) are stacked on the same side or opposite side of the terminal body (10).

10. The intelligent terminal for distribution energy management and district convergence according to claim 1, characterized in that, One end of the distributed energy management module (40) is fixedly provided with a contact terminal (43), and the interior of the terminal body (10) is fixedly provided with an elastic contact (13). The contact terminal (43) abuts against the elastic contact (13) to electrically connect the terminal body (10) and the distributed energy management module (40).

Images