Switching module and electricity meter

Abstract

The application relates to a switching module and an electric meter, and relates to the technical field of electric meters. The switching module comprises a male seat, a female seat and a connecting line. The male seat is provided with a plug-in part and a first clamping part. The plug-in part is used for plug-in cooperation with a switching port of an electric meter, and the first clamping part is used for limiting cooperation with the inner wall of the switching port, so that the stability of connection is improved. The female seat is provided with a plug-in groove and a second clamping part. The plug-in groove is used for plug-in cooperation with a switching part of another electric meter, and the second clamping part is used for limiting cooperation with the outer wall of the switching part, so that the plug-in fixing effect is enhanced. The male seat and the female seat are electrically connected. The structure realizes stable electrical connection between two electric meters, is convenient to install, has strong adaptability, and is beneficial to improving the reliability and practicality of the switching module.

Description

Technical Field

[0001] This application relates to the field of electricity meter technology, and in particular to an adapter module and an electricity meter. Background Technology

[0002] Currently, in the process of electricity data acquisition and transmission, the adapter module serves as a crucial bridge connecting rail-mounted energy meters, and its performance directly affects the stability of data transmission and the reliability of system operation. Existing adapter modules connect to rail-mounted energy meters via common mechanical methods to transmit data signals. However, in practical applications, it has been found that the connection structure between existing adapter modules and rail-mounted energy meters is poorly designed, resulting in poor connection reliability and unstable contact, which can easily lead to data transmission anomalies or even interruptions. Furthermore, these adapter modules are generally structurally complex, with cumbersome installation processes, often requiring multiple components to assemble, increasing both installation difficulty and maintenance costs. Utility Model Content

[0003] This application provides an adapter module and a meter to at least partially solve the above-mentioned technical problems.

[0004] To achieve the above objectives, according to a first aspect of this application, a switching module is provided, comprising:

[0005] A male seat has a plug and a first snap-fit, the plug being configured to engage with an adapter of an electricity meter, and the first snap-fit ​​being configured to engage with the inner wall of the adapter when the plug is inserted into the adapter.

[0006] The female connector has a plug slot and a second snap-fit ​​member. The plug slot is configured to engage with an adapter of an electricity meter, and the second snap-fit ​​member is configured to engage with the outer wall of the adapter when an adapter of another electricity meter is inserted into the plug slot.

[0007] The male and female seats are configured to be electrically connected.

[0008] Optionally, it also includes a connecting wire electrically connected between the male connector and the female connector.

[0009] Optionally, the connector includes a pin configured to engage with an adapter on the meter.

[0010] The pins are arranged in a row.

[0011] Optionally, the connector further includes a limiting portion, which is arranged around the outer periphery of the plurality of pins and configured to engage with the adapter of the meter.

[0012] Optionally, the limiting part is made of an antistatic material;

[0013] The insertion end wall of the limiting part is provided with a guide bevel.

[0014] Optionally, the insertion end of the limiting part and both sides of the pin are provided with notches, and the first snap-fit ​​member is disposed in the notch.

[0015] Optionally, the first snap-fit ​​component has a first abutting protrusion, the first abutting protrusions located on both sides of the pin are arranged opposite to each other, and the straight-line distance between the highest points of the two opposite first abutting protrusions is greater than the insertion width of the adapter.

[0016] Optionally, the first abutting protrusion is configured to engage with the inner wall of the adapter when the first snap-fit ​​is inserted into the adapter.

[0017] Optionally, the second snap-fit ​​member is disposed on the two inner walls opposite to the insertion slot.

[0018] Optionally, the second snap-fit ​​member has a guide slope and a second abutment protrusion. The guide slope faces the insertion port side of the insertion slot. Along the insertion direction of the adapter, the second abutment protrusion is located at the end of the guide slope. The second abutment protrusions on the two opposite inner walls of the insertion slot are arranged opposite each other. The straight-line distance between the highest points of the two opposite second abutment protrusions is less than the thickness of the adapter.

[0019] Optionally, both the male and female seats include a cover and a base. The inner wall of the open end of the cover is provided with a fitting groove, the base is fitted into the fitting groove, and the cover is configured to enclose the base to form an installation space.

[0020] Optionally, the male and female connectors further include a PCB board, the male connector having a fixing component, and the PCB board being mounted in the mounting space via the fixing component.

[0021] Optionally, the fixing component includes a first limiting post and a second limiting post. The first limiting post is disposed inside the cover, and the second limiting post is disposed on the base. The first limiting post is configured to be opposite to the second limiting post in the installation space after the cover is engaged with the base. The PCB board abuts between the first limiting post and the second limiting post.

[0022] Optionally, the male connector has a first wiring hole on the side wall located on the side of the plug-in member, and the female connector has a second wiring hole on the side wall located on the side of the plug-in slot. The connecting wire is configured to pass through the first wiring hole and be electrically connected to the PCB board in the male connector, and to pass through the second wiring hole and be electrically connected to the PCB board in the female connector.

[0023] According to a second aspect of this application, an electricity meter is provided, including the adapter module described in the first aspect, and further including a meter body, the meter body having an adapter interface and an adapter member, the adapter interface being configured for insertion of the adapter member, and the adapter member being configured to engage with the plug slot.

[0024] Optionally, the meter is a rail-mounted meter.

[0025] In the adapter module of this application embodiment, by setting a male connector, a female connector, and a connecting wire, and configuring plug-in structures with limiting functions on the male and female connectors respectively, the stability and structural adaptability of the electrical connection between the meters can be improved to a certain extent. Specifically, the plug-in on the male connector cooperates with the adapter of the meter, and is limited by the first snap-fit ​​component to the inner wall of the adapter, which helps to reduce poor contact caused by mechanical loosening of the plug-in component during use; the plug-in slot on the female connector cooperates with the adapter of the meter, and is limited by the outer wall of the adapter component by the second snap-fit ​​component, thereby structurally enhancing the fixed fit between the female connector and the other meter. The male and female connectors are electrically connected by a flexible connecting wire. This connecting wire has a certain degree of extensibility and can adapt to the displacement changes caused by installation deviations or movement of the two meters on the guide rail, which helps to prevent the connecting wire from breaking due to excessive stretching or bending. The overall structure does not rely on additional fastening tools, the plugging process is simple and quick, and the assembly time and probability of error are reduced. Therefore, this adapter module has significant advantages in terms of compact structure, stable connection, and efficient installation. It can effectively alleviate the problems of unreliable connection and complex assembly in existing technologies, and is particularly suitable for the needs of modular installation and connection reliability in power data acquisition scenarios.

[0026] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0029] Figure 1 This is a schematic diagram of the connection between the adapter module and the electricity meter provided in the embodiments of this application. Figure 1 ;

[0030] Figure 2 This is a schematic diagram of the connection between the adapter module and the electricity meter provided in the embodiments of this application. Figure 2 ;

[0031] Figure 3 This is a schematic diagram of the structure of the public seat provided in the embodiments of this application;

[0032] Figure 4 This is a cross-sectional view of the connection between the public seat and the electricity meter provided in the embodiments of this application;

[0033] Figure 5 This is a schematic diagram of the structure of the female seat provided in the embodiments of this application. Figure 1 ;

[0034] Figure 6 This is a schematic diagram of the structure of the female seat provided in the embodiments of this application. Figure 2 ;

[0035] Figure 7 This is a cross-sectional view of the connection between the female connector and the meter provided in the embodiments of this application;

[0036] Figure 8 This is a structural cross-sectional view of the male seat provided in the embodiments of this application;

[0037] Figure 9 This is a structural cross-sectional view of the female base provided in the embodiments of this application.

[0038] Explanation of reference numerals in the attached figures:

[0039] 1. Male connector; 11. Connector; 111. Pin; 112. Limiting part; 1121. Guide angle; 1122. Notch; 12. First locking connector; 121. First abutting protrusion; 13. First wiring hole;

[0040] 2. Female connector; 21. Insertion slot; 22. Second snap-fit ​​component; 221. Guide slope; 222. Second abutment protrusion; 23. Second wiring hole;

[0041] 3. Connecting cable;

[0042] 4. Cover; 41. Fitting groove;

[0043] 5. Base;

[0044] 6. Installation space;

[0045] 7. PCB board;

[0046] 8. Fixing component; 81. First limiting post; 82. Second limiting post;

[0047] 9. Table body; 91. Adapter interface; 92. Adapter component. Detailed Implementation

[0048] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0049] Firstly, this application provides an adapter module; please refer to [link to relevant documentation]. Figure 1 and Figure 2 The adapter module includes a male connector 1 and a female connector 2; the male connector 1 and the female connector 2 are configured to be electrically connected; furthermore, combined with Figure 3 , Figure 4 The male connector 1 has a plug 11 and a first snap-fit ​​12. The plug 11 is used to insert into the adapter 91 of the electricity meter to realize the electrical connection between the two. The first snap-fit ​​12 is disposed outside the plug 11, and its shape, size and position are matched with the inner wall of the adapter 91. When the plug 11 is inserted into the adapter 91, the first snap-fit ​​12 forms a limiting fit with the inner wall of the adapter 91, thereby limiting the tendency of the plug 11 to loosen or misalign in the insertion direction to a certain extent, which is beneficial to improving the connection stability between the male connector 1 and the electricity meter.

[0050] Furthermore, combined Figure 5 , Figure 6 and Figure 7 The female connector 2 is provided with a plug-in slot 21 and a second locking member 22. The shape and size of the plug-in slot 21 are adapted to the adapter 92 on the meter. The plug-in slot 21 has an inner wall structure for guidance in the depth direction, so that the adapter 92 of the meter can be smoothly aligned and inserted during the insertion process, and the insertion and removal action is smooth. The second locking member 22 is provided on the wall of the plug-in slot 21, and its position corresponds to the outer wall of the plug-in member 11. When the adapter 92 of another meter is inserted into the plug-in slot 21, the second locking member 22 can contact the outer wall of the adapter 92 to a certain extent and form a limiting fit, thereby effectively resisting the loosening tendency of the adapter 92 of the other meter due to vibration or external force during use, and providing structural guarantee for the plug-in stability between the female connector 2 and the meter.

[0051] For example, the adapter module also includes a connecting cable 3, through which the male connector 1 and the female connector 2 are electrically connected. It can be understood that the connecting cable 3 is made of flexible wire, with both ends electrically connected to the electrical interfaces of the male connector 1 and the female connector 2 respectively. The length of the connecting cable 3 can be preset to be slightly larger than the standard installation distance between the two rail-mounted meters, so that even if the meters shift or adjust their position on the rail, the connecting cable 3 can still deform within a certain range due to its extensibility, preventing breakage or excessive stretching. This ensures the continuity of the electrical signal between the two meters while also improving the adaptability and service life of the adapter module under different installation conditions.

[0052] Based on this, the aforementioned male connector 1 and female connector 2 are respectively equipped with mechanical limiting structures (first locking component 12 and second locking component 22). While ensuring stable insertion, no auxiliary tools or additional locking structures are required, simplifying the entire conversion process and making installation more efficient and convenient; simply aligning the connectors is sufficient for connection. Because the insertion structure possesses directionality and limiting properties in its structural form and function, users do not need to repeatedly adjust the insertion direction during connection, which helps reduce installation difficulty and the risk of mis-insertion. Furthermore, standardized electrical contact terminals or connectors can be set on the electrical connection structures of male connector 1, female connector 2, and connecting wire 3 to adapt to the interface specifications of mainstream DIN rail energy meters, achieving modular connection and facilitating subsequent maintenance and replacement. From an overall structural perspective, this conversion module features a compact structure, reliable connection, and strong adaptability. It can, to a certain extent, solve technical problems in existing conversion modules such as unreliable connections and cumbersome assembly, and has positive significance for improving connection stability and assembly convenience during energy data acquisition and transmission.

[0053] In some embodiments, combined with Figure 3 , Figure 4 The connector 11 includes pins 111 and a limiting part 112. Multiple pins 111 are arranged side-by-side on the connector 11 to form a plug-in relationship with the meter's adapter interface 91. It can be understood that the parallel arrangement of multiple pins 111 in space facilitates the parallel transmission of multiple signals, thus meeting the requirements of the meter's multi-pin communication structure and increasing the electrical transmission channel capacity between the adapter module and the meter. Each pin 111 has good conductivity, and conductive materials such as tin-plated copper or gold-plated copper can be selected according to actual needs to adapt to different electrical performance requirements. The spacing of the pins 111 can be designed to match the standard value of the pin spacing of the meter's adapter interface 91, thereby avoiding the risk of pin misalignment or short circuits during insertion.

[0054] Furthermore, a limiting part 112 is provided around the outer periphery of the pin 111. The limiting part 112 is structurally formed as a ring, hollow inside to accommodate and surround multiple pins 111. The external structure is adapted to the insertion structure of the meter adapter 91, so that the limiting part 112 can also form an insertion engagement with the meter adapter 91 during the insertion process. The limiting part 112 has multiple functions. On the one hand, it can provide external structural support for the pins 111, thereby limiting the shaking of the pins 111 during the insertion of the pins 111 into the meter interface and reducing the problem of pin 111 skewing or unstable contact caused by insertion angle deviation. On the other hand, the limiting part 112 forms an insertion auxiliary structure, making the entire connector 11 more stable during the insertion process and the connection state after insertion is more secure, thereby improving the connection reliability to a certain extent.

[0055] It is understandable that the limiting part 112 is made of an engineering plastic material with antistatic properties, such as conductive polycarbonate or antistatic ABS. This material can effectively reduce the damage that may be caused to the module or electronic components of the meter by static discharge during operation, while maintaining good strength and shape retention in structure. At the same time, the limiting part 112 can be made of PC material combined with 10% GF material. PC is polycarbonate, a thermoplastic engineering plastic with high mechanical strength, good toughness, and excellent electrical insulation properties; 10% GF is 10% glass fiber, which can enhance the rigidity, strength, heat resistance, and dimensional stability of the limiting part 112.

[0056] For example, the end wall of the limiting part 112 facing the insertion direction is provided with a guide angle 1121. The guide angle 1121 forms an inclined surface that gradually converges in the insertion direction. Its structure matches the guide opening of the meter adapter 91. During the insertion operation, the guide angle 1121 can guide the pin 111 to align with the pin area in the adapter 91, making the insertion operation smoother and the insertion force between the pin 111 and the socket can be evenly distributed, thereby reducing the risk of the pin 111 bending due to uneven insertion force.

[0057] It is understandable that the guide angle 1121 also helps to reduce the possibility of direct collision between the end of the pin 111 and the interface metal parts, alleviates mechanical impact during the insertion process, and extends the service life of the pin 111 and the interface parts. This embodiment, through the refined design of the connector 11 structure, clarifies the number and arrangement of the pins 111, and, combined with the ring structure of the limiting part 112 and its anti-static and guiding functions, further enhances the adaptability and reliability of the module and the meter interface in terms of electrical connection and structural fit, providing structural support and functional guarantee for the widespread application of the adapter module in different meter systems.

[0058] In some examples, combined Figure 3 , Figure 4 The insertion end of the limiting part 112 and both sides of the pin 111 are provided with notches 1122, and each notch 1122 is provided with a first locking member 12. It is understood that the first locking member 12 is preferably made of a material with elastic recovery properties, such as elastic plastic or metal spring structure, which has the ability to undergo controllable deformation when subjected to external force.

[0059] Furthermore, each first connector 12 is provided with a first abutting protrusion 121. Two first abutting protrusions 121 are arranged opposite each other, protruding in opposite directions toward the sides of the pin 111. The straight-line distance between the highest points of the two opposing first abutting protrusions 121 is slightly greater than the insertion width of the adapter 91. The first abutting protrusions 121 are configured to abut against the inner wall of the adapter 91 when the first connector 12 is inserted into the adapter 91. The beneficial effect of this structure is that when the connector 11 is inserted into the meter adapter 91, the two first abutting protrusions 121 will be constrained when they contact the edge of the adapter 91, and will deform and shrink due to their position being slightly larger than the insertion width of the adapter 91, giving the entire connector 11 a pre-tightening force during insertion. This pre-tightening force allows the first abutting protrusions 121 to form a stable contact relationship with the inner wall of the adapter 91 to a certain extent after being inserted into the adapter 91, thereby providing an effective lateral limiting effect.

[0060] It is understandable that this structure not only prevents the connector 11 from loosening due to shaking or vibration after insertion, but also maintains a stable connection through the slight rebound of the elastic structure. By providing a notch 1122 on the limiting part 112 and embedding the first locking member 12 inside the notch 1122, the elastic range of motion of the first locking member 12 is not affected by the rigid material of the limiting part 112. At the same time, the connector 11 has the dual functions of elastic buffering and mechanical limiting while maintaining a compact overall structure. In addition, the notch 1122 on the limiting part 112 is symmetrically arranged with respect to both sides of the pin 111, making the force on the connector 11 more balanced during insertion. This helps to reduce the asymmetrical torsional force on the pin 111, thereby reducing the risk of the pin 111 bending or abnormal contact. Through the above structural design, the first abutting protrusion 121 of the first snap-fit ​​member 12, together with the limiting part 112 and the pin 111, forms a composite plug-in structure, which to a certain extent improves the connection reliability and adaptability of the adapter module in actual application and meets the connection requirements of the adapter interface 91 of different specifications of electricity meters.

[0061] In some implementations, combined Figure 6 , Figure 7A second snap-fit ​​member 22 is provided on each of the two opposite inner walls of the insertion slot 21. The second snap-fit ​​member 22 includes a guide slope 221 and a second abutment protrusion 222. The guide slope 221 faces the insertion port side of the insertion slot 21 and extends along the insertion direction of the adapter 92, with the end of the guide slope 221 connected to the second abutment protrusion 222. Further, the two second abutment protrusions 222 are respectively provided on the two opposite inner walls of the insertion slot 21, arranged facing each other, and the straight-line distance between the highest points of the two second abutment protrusions 222 is less than the thickness of the adapter 92.

[0062] It is understandable that during the insertion of the adapter 92 of another meter into the insertion slot 21, the adapter 92 first contacts the guide slope 221. Under the inclined guidance of the guide slope 221, the insertion direction tends to be consistent with the axis of the insertion slot 21, thereby achieving a smoother insertion operation and reducing mechanical interference caused by angular deviation during the insertion process. As the adapter 11 continues to be inserted, the guide slope 221 transitions to the area where the second abutment protrusion 222 is located, and the two sides of the adapter 92 will force the two second abutment protrusions 222 to deform.

[0063] Meanwhile, when the second abutment protrusion 222 is made of an elastic material, such as elastic resin or a metal spring, it can be pushed outward when the connector 11 passes through, and partially rebound after the connector 11 is fully inserted into the insertion slot 21. This allows the second abutment protrusion 222 to form a contact limit with the side wall of the connector 11 to a certain extent, thereby structurally improving the mechanical fit stability between the connector 11 and the female seat 2. Furthermore, the straight-line distance between the two second abutment protrusions 222 is less than the thickness of the connector 11. This design allows the connector 11 to be in a slightly clamped state after insertion, providing a certain pre-tightening effect, thus counteracting the connection loosening problem caused by vibration, external force, or gravity. The combined structure of the guide slope 221 and the second abutment protrusion 222 also makes the entire insertion process smoother, reduces insertion resistance, and achieves precise positioning of the connector 11 in the insertion direction through the step-by-step action of guidance and limiting.

[0064] In summary, this structural design improves the compatibility and anti-interference capabilities between the connector 11 and the connector slot 21, while simplifying the alignment process for manual operation. It is particularly valuable for meter installations in complex environments with limited operating space. Integrating the second connector 22 into the female connector 2 structure enhances structural functionality without increasing the overall module size, laying a structural foundation for stable connection of the adapter module during power data transmission.

[0065] In some implementations, combined with Figure 8 , Figure 9The adapter module adopts a unified modular construction form in the structural design of male connector 1 and female connector 2, that is, both include two main components: cover 4 and base 5.

[0066] For example, one end of the cover 4 is an open end, and a fitting groove 41 is provided on the inner wall of the open end. The fitting groove 41 is an annular groove structure, and its shape and size match the outer peripheral edge of the base 5. The base 5 is inserted into the fitting groove 41 to form a snap-fit ​​engagement with the cover 4, so that the cover 4 and the base 5 enclose a stable installation space 6 after assembly. This installation space 6 has relative enclosure to accommodate internal electronic structural components, so that the entire adapter module has a certain degree of integrity in terms of structural strength and protection performance.

[0067] For example, the installation space 6 is provided with a fastener 8 for fixing the PCB board 7. The fastener 8 includes a first limiting post 81 and a second limiting post 82. The first limiting post 81 is disposed on the inner surface of the cover 4, and the second limiting post 82 is disposed on the base 5. The two are arranged opposite to each other in structure, and both adopt a columnar structure and have limiting shoulders.

[0068] It is understood that the PCB board 7 is a circuit board used to realize functions such as signal conversion, filtering or power supply control. Its size design is adapted to the installation space 6. During the installation process, it is inserted between the first limiting post 81 and the second limiting post 82. The first limiting post 81 and the second limiting post 82 clamp it in the vertical direction, so that the PCB board 7 forms a stable positioning state in the installation space 6 without displacement or tilting, thereby improving the reliability of the internal circuit connection of the module.

[0069] Furthermore, the relative distance between the first limiting post 81 and the second limiting post 82 is slightly less than the diagonal length of the PCB board 7, or a positioning groove for inserting into the edge of the PCB board 7 is provided, further enhancing the positioning effect. This structural design makes the male connector 1 and the female connector 2 highly consistent and versatile in terms of manufacturing molds and assembly processes. They can be used as male connector 1 or female connector 2 respectively by simply changing the shape of the connector 11 or the connector slot 21, thus possessing good production adaptability and assembly flexibility.

[0070] Furthermore, the snap-fit ​​structure between the cover 4 and the base 5 via the fitting groove 41 facilitates the sealing operation without the use of additional fasteners such as screws or adhesives, simplifying the assembly process and reducing material costs. The depth and angle of the fitting groove 41, together with the flange structure of the outer wall of the base 5, provide a certain degree of locking force to prevent the cover 4 from loosening, thereby improving the structural integrity of the entire module during stress or handling. In summary, by adopting the combined structure of the cover 4, base 5, fitting groove 41, first limiting post 81, second limiting post 82, and PCB board 7, the adapter module not only has a more compact and reasonable structural layout, but also has the advantages of flexible circuit layout, stable installation, and strong module reusability, which to a certain extent meets the dual requirements of structural integrity and functional expandability of adapter devices in complex application environments.

[0071] In some implementations, such as Figure 1 , Figure 4 and Figure 7 As shown, a first wiring hole 13 is provided on the side wall of the male connector 1 on the side of the plug 11, and a second wiring hole 23 is provided on the side wall of the female connector 2 on the side of the plug slot 21. One end of the connecting wire 3 passes through the first wiring hole 13 and is electrically connected to the PCB board 7 inside the male connector 1, and the other end passes through the second wiring hole 23 and is electrically connected to the PCB board 7 inside the female connector 2.

[0072] It is understandable that the first wiring hole 13 and the second wiring hole 23 are both located on the side wall near the insertion direction. This arrangement takes into account the spatial distribution characteristics of rail-mounted meters in actual installation environments. Especially when two rail-mounted meters are in the same direction and the rails are set in parallel, the path formed by the connecting wire 3 through the first wiring hole 13 and the second wiring hole 23 is more compact, allowing the connecting wire 3 to have greater natural extension space during the installation process. This reduces the possibility of the connecting wire 3 becoming tense due to tension or installation errors when plugged in, thus improving the service life of the connecting wire 3 and the stability of the connection between modules. The dimensions of the first wiring hole 13 and the second wiring hole 23 can be designed to match the outer diameter of the connecting wire 3, and flexible limiting rings or cable sheath structures can be provided at the edge of the holes to buffer and protect the connecting wire 3.

[0073] At the same time, it also facilitates the arrangement or crimping of connecting wire 3 along the side of the meter body or the guide rail after installation, improving the overall wiring standardization and electrical connection safety. This structure not only optimizes the connection path and wiring direction, but also structurally supports the flexible networking requirements of the meter in multi-module collaborative use scenarios, providing a foundation for subsequent system expansion.

[0074] Secondly, referring to Figures 1 to 9This application provides an electricity meter, including a first aspect of the adapter module, and also includes a meter body 9, the meter body 9 having an adapter interface 91 and an adapter 92, the adapter interface 91 being configured for insertion of a plug 11, and the adapter 92 being configured to engage with a plug slot 21.

[0075] For example, the meter is a rail-mounted meter.

[0076] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0077] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0078] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0079] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. An adapter module, characterized in that, include: A male seat has a plug and a first snap-fit, the plug being configured to engage with an adapter of an electricity meter, and the first snap-fit ​​being configured to engage with the inner wall of the adapter when the plug is inserted into the adapter. The female connector has a plug slot and a second snap-fit ​​member. The plug slot is configured to engage with an adapter of an electricity meter, and the second snap-fit ​​member is configured to engage with the outer wall of the adapter when an adapter of another electricity meter is inserted into the plug slot. The male and female seats are configured to be electrically connected.

2. The adapter module according to claim 1, characterized in that, It also includes a connecting wire that is electrically connected between the male connector and the female connector.

3. The adapter module according to claim 1, characterized in that, The connector includes pins configured to engage with the adapter of the meter; multiple pins are arranged side by side.

4. The adapter module according to claim 3, characterized in that, The connector also includes a limiting part, which is arranged around the outer periphery of the plurality of pins and configured to engage with the adapter of the meter.

5. The adapter module according to claim 4, characterized in that, The limiting part is made of antistatic material, and the insertion end wall of the limiting part is provided with a guide bevel.

6. The adapter module according to claim 4, characterized in that, The insertion end of the limiting part and both sides of the pin have notches, and the first snap-fit ​​component is located in the notch.

7. The adapter module according to claim 6, characterized in that, The first snap-fit ​​component has a first abutting protrusion. The first abutting protrusions on both sides of the pin are arranged opposite to each other, and the straight-line distance between the highest points of the two opposite first abutting protrusions is greater than the insertion width of the adapter.

8. The adapter module according to claim 7, characterized in that, The first abutting protrusion is configured to engage with the inner wall of the adapter when the first snap-fit ​​is inserted into the adapter.

9. The adapter module according to any one of claims 2 to 8, characterized in that, The second snap-fit ​​component is disposed on the two inner walls opposite to the insertion slot.

10. The adapter module according to claim 9, characterized in that, The second snap-fit ​​component has a guide slope and a second abutment protrusion. The guide slope faces the insertion port side of the insertion slot. Along the insertion direction of the adapter, the second abutment protrusion is located at the end of the guide slope. The second abutment protrusions on the two opposite inner walls of the insertion slot are arranged opposite each other. The straight-line distance between the highest points of the two opposite second abutment protrusions is less than the thickness of the adapter.

11. The adapter module according to claim 2, characterized in that, Both the male and female seats include a cover and a base. The inner wall of the opening end of the cover is provided with a fitting groove, the base is fitted into the fitting groove, and the cover is configured to surround the base to form an installation space.

12. The adapter module according to claim 11, characterized in that, The male and female connectors also include a PCB board. The male connector has a fixing component, and the PCB board is installed in the installation space through the fixing component.

13. The adapter module according to claim 12, characterized in that, The fastener includes a first limiting post and a second limiting post. The first limiting post is disposed inside the cover, and the second limiting post is disposed on the base. The first limiting post is configured to be opposite to the second limiting post in the installation space after the cover is engaged with the base. The PCB board abuts between the first limiting post and the second limiting post.

14. The adapter module according to claim 12 or 13, characterized in that, The male connector has a first wiring hole on the side wall located on the side of the plug-in component, and the female connector has a second wiring hole on the side wall located on the side of the plug-in slot. The connecting wire is configured to pass through the first wiring hole and be electrically connected to the PCB board in the male connector, and to pass through the second wiring hole and be electrically connected to the PCB board in the female connector.

15. An electricity meter, characterized in that, The adapter module, including any one of claims 1 to 14, further includes a body having an adapter interface and an adapter component, the adapter interface being configured for insertion of the adapter component, and the adapter component being configured to engage with the plug slot.

16. The electricity meter according to claim 15, characterized in that, The meter is a rail-mounted meter.

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