A multifunctional module intelligent fusion terminal

Abstract

This application provides a multi-functional module intelligent fusion terminal, including a combination terminal that is inserted into the housing of an energy meter via a horizontal slot and is electrically connected to the energy meter; a functional module that is inserted into the combination terminal and electrically connected to it; and a locking assembly that locks the functional module to the combination terminal. The combination terminal has an internal receiving cavity with an insertion interface at its upper end. A first connection point is located inside the receiving cavity, and a second connection point is located on the functional module. The first and second connection points are electrically connected to achieve matching between the functional modules. A rigid optical axis locking mechanism within the receiving cavity converts rotational torque into vertical locking force and horizontal pressing force through the mechanical self-locking effect of the arc-shaped locking block and the locking groove. The horizontal component forces the second connection point to form a constant and tight fit with the first connection point, eliminating contact resistance fluctuations caused by vibration; the vertical component completely suppresses block displacement and withstands axial impact.

Description

Technical Field

[0001] This application relates to the field of modular electronic equipment technology, specifically to a multi-functional module intelligent fusion terminal. Background Technology

[0002] In the field of industrial IoT edge computing terminals, especially in electricity meters, the electrical connection reliability of functional modules has become a core bottleneck restricting equipment efficiency. Traditional functional modules, because they are constantly in a variable environment during use, are susceptible to external factors such as vibration, and mainly suffer from electrical contact instability and complex module replacement operations. Existing module connections typically use a direct solder joint connection method: the functional module PCB board is fixed to the terminal base plate by soldering. Products manufactured using this method have a limited number of functional modules at the time of manufacture, and the finished product cannot meet the requirements for replacing or expanding functional modules for different usage conditions.

[0003] Another solution is to use spring-loaded snap-fit ​​connections: This solution can initially achieve the expansion and matching of multiple functional modules. It mainly relies on spring force to maintain contact pressure, thereby achieving electrical contact between multiple functional modules. However, in industrial vibration environments, the spring force is prone to loosening, leading to unstable electrical contact between the functional modules. This instability can cause localized arcing and high temperatures within the functional modules, resulting in short circuits and fires, posing a significant safety hazard such as fires.

[0004] Meanwhile, there are also methods that use snap-fit ​​structures and magnetic connection modules to expand and match modules. Although magnetic connection modules can achieve "push-in" installation and simplify plugging and unplugging operations, they cannot meet the high vibration protection requirements of industrial scenarios due to magnetic force attenuation. The magnetic force decreases sharply with the increase of temperature and lacks fire safety protection.

[0005] Therefore, the industry urgently needs a terminal architecture that integrates multi-standard interface adaptation, high-reliability locking, and flexible expansion, which can ensure the electrical connection stability of functional modules in the electricity meter, support users to configure functional modules independently, and meet industrial fire safety standards. Utility Model Content

[0006] This application provides a multi-functional module intelligent fusion terminal to solve the technical problems of severe contact instability of electrical modules and complicated module replacement operations in the prior art.

[0007] This application adopts the following technical solution: a multi-functional module intelligent fusion terminal, including a base plate and an energy meter configured in conjunction with the base plate, wherein the intelligent fusion terminal has: The combination terminal is inserted into the outer casing of the energy meter through a horizontal slot. The horizontal slot is opened at one end face of the energy meter, and the combination terminal is electrically connected to the energy meter. The system comprises several functional modules, each of which is plugged into a combination terminal and electrically connected thereto; and A locking component, which is disposed inside the combination terminal, is adapted to lock the functional module to the combination terminal and maintain the stability of the electrical connection between the functional module and the combination terminal. The combination terminal has a receiving cavity inside, and the upper end of the receiving cavity has a plug-in interface; a first connection point is provided inside the receiving cavity, and a second connection point is provided on the functional module. The first connection point and the second connection point are electrically connected to achieve matching between the functional modules.

[0008] Preferably, the accommodating cavity extends horizontally within the combined terminal, and an optical axis is rotatably disposed within the accommodating cavity. A locking block is disposed on the optical axis, and the axis of rotation of the optical axis is in the same direction as the extension of the accommodating cavity.

[0009] Preferably, one end of the optical axis is rotatably disposed on the inner wall of the accommodating cavity, and the other end extends out of the accommodating cavity and outwards to the outside.

[0010] Preferably, the functional module includes a plug and a second connection point fixedly disposed on one side of the plug.

[0011] Preferably, the insert block is further provided with a locking groove, which is disposed opposite to the first connection point, and the locking groove and the locking block are rotated and locked.

[0012] Preferably, the first connection point is located on one side of the receiving cavity, and after the locking block is locked with the locking groove, the first connection point and the second connection point are attached.

[0013] Preferably, a rotating handle is provided at the end of the optical axis that extends outward.

[0014] Preferably, the rotating handle has a through hole, and the side wall of the combined terminal has a threaded hole. The rotating handle is locked to the combined terminal by a screw.

[0015] Preferably, a block is provided on one side of the combination terminal, the block is inserted into the horizontal slot to connect the combination terminal to the energy meter, and a connector is provided at one end of the combination terminal. The energy meter has a main interface inside, and the connector is inserted into the main interface to electrically connect the combination terminal to the energy meter.

[0016] Preferably, the cross-section of the insert and the horizontal slot is square.

[0017] The multi-standard functional module matching intelligent fusion terminal provided by this utility model systematically solves the core problems of functional module connection reliability, operation efficiency and safety adaptation in industrial scenarios through innovative mechanical-electrical integrated design, and is specifically manifested in the following significant advantages: A rigid optical axis locking mechanism within the accommodating cavity replaces the traditional spring clips or solder joints. Through the mechanical self-locking effect of the arc-shaped locking block and the locking groove, the rotational torque is converted into a vertical locking force and a horizontal pressing force. The horizontal component forces the second connection point (module contact) and the first connection point (terminal contact) to form a constant and tight fit, eliminating contact resistance fluctuations caused by vibration; the vertical component completely suppresses the displacement of the insert and withstands axial impact.

[0018] Locking / unlocking is achieved by rotating the handle 90°, with a secondary locking mechanism using screws to ensure vibration resistance reliability. Single module replacement takes less than 3 seconds, offering short turnaround time and high module matching efficiency. Furthermore, the guide design between the insert and the receiving cavity supports blind insertion, significantly reducing the complexity of on-site operations.

[0019] The combined terminal is integrally molded from glass fiber reinforced PPS fire-retardant material, boasting a high flame retardant rating and no molten droplets at high temperatures. It can interrupt the combustion chain caused by electric arc, meeting the explosion-proof requirements of petrochemical, coal mining, and other similar environments. The combined terminal and the electricity meter achieve dynamic splicing via a dovetail-type horizontal slot-block structure (H7 / g6 precision tolerance), supporting free matching between multiple functional modules. Furthermore, the combined terminal achieves plug-and-play communication between multiple modules through HDI blind holes, solving the wiring challenges of traditional heterogeneous interfaces.

[0020] In summary, this utility model achieves intelligent and rapid matching of diverse functional modules through mechanical innovation, while also ensuring the safety of electrical components with functional modules, such as electricity meters, during use, providing a modular integrated solution for industrial IoT edge computing terminals. Attached Figure Description

[0021] 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.

[0022] Figure 1 This is a schematic diagram of the appearance of the fusion terminal of this application; Figure 2 This is a schematic diagram of the combination of terminals in this application; Figure 3 This is a schematic diagram of the combination terminals and functional modules of this application being matched; Figure 4 yes Figure 2 A cross-sectional view of the middle combined terminal along AA; Figure 5 This is a schematic diagram of the locking component in this application; Figure 6 This is a schematic diagram of the electrical adapter connection between the combined terminals and the electricity meter in this application.

[0023] Explanation of reference numerals in the attached figures: 10. Base plate; 11. Electricity meter; 12. Horizontal slot; 13. Main interface; 20. Combined terminal; 21. Receiving cavity; 22. Insertion interface; 23. Insert block; 25. First connection point; 26. Connector; 30. Locking assembly; 31. Optical shaft; 32. Locking block; 33. Rotating handle; 33'. Through hole; 34. Threaded hole; 35. Screw; 40. Functional module; 41. Insert block; 42. Locking slot; 43. Second connection point. Detailed Implementation

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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. Example 1

[0029] Please see Figures 1 to 6 As shown, this application provides a multi-functional module intelligent fusion terminal, which is an important internal component of the electricity meter and is integrated into the base plate of the electricity meter. This multi-standard functional module is matched with the intelligent fusion terminal, which solves the problem of contact reliability of functional modules in industrial scenarios by systematically reconstructing the integrated architecture of mechanical locking and electrical connection.

[0030] In this application, the base plate 10 serves as the supporting substrate, and an energy meter 11 is mounted on its upper end. The combined terminal 20 is horizontally inserted into the insert block 23 via a horizontal slot 12 and then fixed to the energy meter 11. The combined terminal 20 is preferably integrally injection molded from glass fiber reinforced PPS (polyphenylene sulfide), with a horizontally extending accommodating cavity 21 inside, the cavity having a depth of 30mm. The combined terminal 20 has a horizontally extending accommodating cavity 21 inside, with an insertion interface 22 at the upper end of the cavity, and a first connection point 25 integrated into the inner side wall of the cavity. The functional module 40 has an insertion block 41 at the bottom, and a second connection point 43 is fixed to the side of the insertion block 41. After being inserted into the accommodating cavity 21, it fits against the first connection point 25, which is made of gold-plated copper alloy.

[0031] A mounting hole of a certain diameter is opened on the side wall of the accommodating cavity 21. The optical axis 31 is preferably a 6mm diameter 420 stainless steel shaft with a hardened surface. An arc-shaped locking block 32 is welded to the center of the shaft, and the working surface is coated with tungsten carbide. Functional module 40: The insert 41 is made of the same material as the combination terminal 20, and a second connection point 43 (optionally an equally spaced array of spring pins) is integrated at the bottom. A locking groove 42 is opened on the side wall, into which a 304 stainless steel wear-resistant plate can be embedded.

[0032] After the functional module 40 is assembled and connected to the combination terminal 20, the energy meter 11 containing the combination terminal 20 is then fastened to the base plate 10, thereby forming an intelligent fusion terminal for the energy meter with multiple standard functional modules. After the combination terminal 20 is matched, it is electrically connected to the inside of the energy meter 11. In this application, the electrical connection between the energy meter 11 and the combination terminal 20 can be achieved by means of Bluetooth data transmission, etc., and no specific restrictions are imposed on this in this application.

[0033] It should be noted that, in the technical solution of this application, for the combined terminal 20, a connector 26 is provided at the end of the combined terminal 20, and a main interface 13 is provided inside the energy meter 11. The connector 26 is plugged into the main interface 13 to realize the electrical compatibility connection between the combined terminal 20 and the energy meter 11. For the functional module 40, each functional module 40 is provided with a separate ribbon cable so that it can be individually or synchronously matched and connected to the central processing terminal inside the energy meter 11 to realize the expansion of the functional module 40 and the energy meter 11.

[0034] As a further preferred embodiment, the first connection point 25 and the second connection point 43 may be coated with a nickel alloy (preferably with a thickness ≥1.5μm). The use of a nickel alloy coating improves corrosion resistance compared to the traditional soldering method for contacts.

[0035] The workflow is as follows: 1. Insertion stage: The functional module 40 is inserted vertically along the insertion interface 22, and the insertion block 41 guides the second connection point 43 to make initial contact with the first connection point 25.

[0036] 2. Locking stage: Rotate the rotating handle 33 at the extended end of the optical shaft 31 to make it rotate 90° until the locking block 32 is screwed into the internal space of the locking groove 42, generating a vertically downward locking force.

[0037] 3. Assembly stage: After matching multiple functional modules 40 to the combination terminal 20, the combination terminal 20 is then connected to the energy meter 11 to finally form a smart matching terminal with multiple standard functional modules.

[0038] In this technical solution, the operator connects multiple functional modules 40 in parallel and then matches them to the electricity meter, thereby realizing the unified and centralized arrangement of multiple different functional modules 40 on a combined terminal 20, and realizing the construction of an intelligent matching terminal for the electricity meter.

[0039] It should be noted that the functional module 40 can be connected to external terminals to enable internal maintenance of the energy meter 11 and series matching with the energy meter 11.

[0040] Meanwhile, traditional snap-fit ​​devices rely on the elastic deformation of plastic, while this solution uses the arc-shaped mechanical amplification effect of the locking block 32 to convert rotational torque into vertical locking force. Traditional terminals rely on metal backplates for module interconnection, and the thermal conductivity of traditional metals easily leads to localized overheating. This design replaces the metal backplate with fire-resistant plastic combination terminals 20, which can block the combustion chain caused by electric arcs and solve the high-temperature hazard of solder joints. The fire-resistant material, through its flame-retardant properties, makes the terminal suitable for explosion-proof scenarios such as petrochemical plants, and supports mixed insertion and matching of different functional modules 40, significantly improving the expansion flexibility compared to fixed backplates.

[0041] It should be noted that the electricity meter 11 of the electricity meter can be connected to the base plate 10 by means of threaded connection or snap-fit ​​connection, etc. This technical solution does not make specific limitations on its connection method, and other connection methods are still considered to fall within the protection scope of this application. Example 2

[0042] Secondary locking of optical axis 31 and locking assembly 30 Please see Figures 3 to 5 An optical shaft 31 is provided inside the accommodating cavity 21, with its rotation axis parallel to the extension direction of the cavity. An arc-shaped locking block 32 is radially fixed to the surface of the optical shaft 31. The insert block 41 of the functional module 40 has a locking groove 42, and the locking block 32 is screwed into the groove to achieve mechanical locking. One end of the optical shaft 31 extends to the outside of the terminal and connects to the rotating handle 33. The through hole 33' of the handle can be locked to the threaded hole 34 on the side wall of the terminal by a screw 35. The rotating handle has a Φ3mm through hole 33', and an M3 stainless steel threaded insert is pre-embedded in the side wall of the combined terminal 20, and mechanical interlocking is achieved by a stainless steel screw 35.

[0043] In a preferred embodiment, the locking block 32 adopts a semi-circular arc design, and the locking groove 42 is a concave arc surface. When the rotating handle is rotated 90°, the locking block 32 engages with the locking groove 42. At this time, the locking block 32 presses down on the arc surface of the locking groove 42, generating horizontal and vertical components of force.

[0044] The horizontal force forces the second connection point 43 (module contact) and the first connection point 25 (terminal contact) to form a constant and tight fit; the vertical force limits the vertical freedom of the plug 41 to achieve vertical locking of the plug 41. At the same time, the horizontal force pulls the plug 41 towards the inside of the receiving cavity 21, eliminating the insertion gap. Traditional snap-fit ​​structures only have a single unidirectional elastic force, which is easily affected by external mechanical vibration, causing them to disengage and lose their locking effect. In this technical solution, the arc-shaped self-locking effect of the locking block 32 and the locking groove 42 is used to effectively resist the axial vibration of the equipment.

[0045] In this technical solution, screw 35 passes through the rotating handle and the side wall of the terminal to form a rigid fit. The operator can unlock it by rotating the rotating handle 90° by hand, which is quick and the connection is efficient and reliable. Example 3

[0046] Multi-standard module expansion Please see Figures 1 to 2 The splicing of the combination terminal 20: The side wall of the energy meter 11 integrates a dovetail-type horizontal slot 12 and a block 23 is provided at one end of the side wall of the combination terminal 20. The tolerance fit design of the two is H7 / g6 grade precision sliding fit.

[0047] As a preferred embodiment of this application, traditional solutions require rewiring for expansion due to the physical heterogeneity of electrical interfaces. Based on the above embodiments 1 and 2, this embodiment adopts a connection point normalization design. For the combination terminal 20, a 4-layer FR4 substrate is preferably used to embed a high-speed backplane bus, and multiple functional modules 40 are connected through HDI blind holes to achieve rapid connection after the multiple functional modules 40 are plugged in and matched.

[0048] It should be noted that the combination terminal 20 uses a blind-buried via circuit board (also known as an HDI board), and its connection method and bottom connector are existing technologies. Therefore, they will not be described in detail in this application, but are also considered to fall within the protection scope of this application.

[0049] 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 multi-functional module intelligent fusion terminal, comprising a base plate (10) and an energy meter (11) configured in conjunction with the base plate (10), characterized in that, The intelligent fusion terminal also has: A combination terminal (20) is inserted into the housing of the energy meter (11) through a horizontal slot. The horizontal slot (12) is opened at one end face of the energy meter (11). The combination terminal (20) is electrically connected to the energy meter (11). The functional module (40) has several components, and the functional module (40) is respectively plugged into the combination terminal (20) and electrically connected to the combination terminal (20); as well as A locking component (30) is disposed inside the combination terminal (20) to lock the functional module (40) to the combination terminal (20) and maintain the stability of the electrical connection between the functional module (40) and the combination terminal (20); The combined terminal (20) has a cavity (21) inside, and a plug-in interface (22) is opened at the upper end of the cavity (21); a first connection point (25) is provided inside the cavity (21), and a second connection point (43) is provided on the functional module (40). The first connection point (25) and the second connection point (43) are electrically connected to achieve matching between the functional modules (40).

2. The multi-functional module intelligent fusion terminal according to claim 1, characterized in that, The accommodating cavity (21) extends horizontally within the combined terminal (20), and an optical axis (31) is rotatably disposed in the accommodating cavity (21). A locking block (32) is disposed on the optical axis (31), and the axis of rotation of the optical axis (31) is the same as the extension direction of the accommodating cavity (21).

3. The multi-functional module intelligent fusion terminal according to claim 2, characterized in that, The optical axis (31) has one end rotatably disposed on the inner wall of the accommodating cavity (21), and the other end extends out of the accommodating cavity (21) and outwards to the outside.

4. The multi-functional module intelligent fusion terminal according to claim 1, characterized in that, The functional module (40) includes a plug (41) and a second connection point (43) fixedly disposed on one side of the plug (41).

5. The multi-functional module intelligent fusion terminal according to claim 4, characterized in that, The insert (41) is also provided with a locking groove (42), which is disposed opposite to the first connection point (25), and the locking groove (42) is rotated and locked with the locking block (32).

6. The multi-functional module intelligent fusion terminal according to claim 5, characterized in that, The first connection point (25) is located on one side of the accommodating cavity (21), and after the locking block (32) is locked with the locking groove (42), the first connection point (25) and the second connection point (43) are attached.

7. The multi-functional module intelligent fusion terminal according to claim 3, characterized in that, The optical axis (31) has a rotating handle (33) at one end extending outward.

8. The multi-functional module intelligent fusion terminal according to claim 7, characterized in that, The rotating handle (33) is provided with a through hole (33'), and the side wall of the combined terminal (20) is provided with a threaded hole (34). The rotating handle (33) is locked to the combined terminal (20) by a screw (35).

9. The multi-functional module intelligent fusion terminal according to claim 1, characterized in that, A plug (23) is also provided on one side of the combined terminal (20). The plug (23) is inserted into the horizontal slot (12) to combine the combined terminal (20) to the energy meter (11). A connector (26) is provided at one end of the combined terminal (20). A main interface (13) is provided inside the energy meter (11). The connector (26) is inserted into the main interface (13) to electrically adapt and connect the combined terminal (20) and the energy meter (11).

10. The multi-functional module intelligent fusion terminal according to claim 9, characterized in that, The cross-sections of the insert (23) and the horizontal slot (12) are square.

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