Single-phase intelligent electric energy meter

Abstract

The application relates to a single-phase intelligent electric energy meter, and relates to the technical field of electric meters. The single-phase intelligent electric energy meter comprises an electric meter body provided with a wiring area and a data storage area, a communication module detachably installed on the data storage area, a wiring terminal group arranged in the wiring area, and a first cover plate and a second cover plate for covering the data storage area and the wiring area respectively. The first cover plate and the second cover plate are detachably connected with the electric meter body through first fixing members and second fixing members. The linkage relationship between the first fixing members and the second fixing members is established in the structure, so that the second fixing members are locked when the first cover plate is in a covering state, and the second fixing members are unlocked after the first cover plate is opened and rotated to the maximum opening position. The structure utilizes the mechanical linkage principle to constrain the disassembly sequence, guides the operator to disassemble the communication module first and then disassemble the wiring terminal group to a certain extent, and is beneficial to reducing the risk that the misoperation has an adverse effect on the stability of communication data.

Description

Technical Field

[0001] This application relates to the field of electricity meter technology, and in particular to a single-phase smart electricity meter. Background Technology

[0002] Currently, the wiring terminals of single-phase energy meters are used to realize the input and output of current and voltage in order to accurately measure electrical energy. In order to ensure personal safety and measurement stability, the wiring area is usually equipped with a terminal cover. At the same time, single-phase energy meters also have a detachable communication module, which is usually covered by a flip-up cover.

[0003] When disassembling an electricity meter, it is essential to follow the operating procedures. This means first opening the cover and then disassembling the communication module sequentially before opening the terminal cover and disconnecting the wires from the wiring terminals in the wiring area. Disconnecting the wires from the terminals first could potentially lead to errors or loss of data stored in the communication module, affecting normal billing for the user. However, during electricity meter disassembly, operator errors frequently occur, resulting in the loss of communication module data. Summary of the Invention

[0004] This application provides a single-phase smart energy meter that can effectively improve the situation where communication module data is lost due to operator errors during disassembly and assembly, thereby at least partially solving the above-mentioned technical problems.

[0005] To achieve the above objectives, according to a first aspect of this application, a single-phase smart energy meter is provided, comprising:

[0006] The meter body has a wiring area and a data storage area;

[0007] A communication module is detachably installed in the data storage area;

[0008] A terminal block assembly is located within the wiring area;

[0009] The first cover plate and the second cover plate are both rotatably connected to the meter body. The first cover plate is used to cover the data storage area, and the second cover plate is used to cover the wiring area.

[0010] The first fastener is detachably connected between the first cover plate and the meter body, and is used to fix the first cover plate in a position that covers the data storage area.

[0011] The second fastener is detachably connected between the second cover plate and the meter body, and is used to fix the second cover plate in a position that covers the wiring area.

[0012] Specifically, when the first fixing member is in the position that covers the data storage area, the second fixing member is in a locked state and cannot be removed; when the first fixing member is removed and the first cover plate is rotated to the maximum opening position, the second fixing member is in an unlocked state and can be removed.

[0013] Optionally, the first fixing member includes a first bolt, the first cover plate has a first opening on the side away from the rotating connection, and the meter body has a first threaded hole on the side located in the data storage area. When the first cover plate is in the position of covering the data storage area, the first opening and the first threaded hole are directly opposite each other. The first bolt can pass through the first opening and be threadedly connected to the first threaded hole to fix the first cover plate to the meter body.

[0014] Optionally, the second fixing member includes a second bolt, and a second opening is provided through the middle of the second cover plate. A connecting seat is provided in the middle of the wiring area on the meter body. The connecting seat has an installation groove. A threaded sleeve is rotatably provided in the installation groove. A threaded groove is provided in the threaded sleeve. When the second cover plate is in the position of covering the wiring area, the second opening is directly opposite the threaded groove. The second bolt can pass through the second opening and be threadedly connected to the threaded groove.

[0015] The single-phase smart energy meter also includes a limiting mechanism, which is telescopically connected to the mounting groove and located below the threaded sleeve.

[0016] Wherein, when the first fixing member fixes the first cover plate in the position covering the data storage area and the second fixing member fixes the second cover plate in the position covering the wiring area, the limiting mechanism is spaced apart from the threaded sleeve so that the threaded sleeve remains in a rotating state.

[0017] When the first fixing member is removed and the first cover plate is rotated to the maximum opening position, the limiting mechanism automatically extends and engages with the threaded sleeve to limit the threaded sleeve to keep it in a fixed state.

[0018] Optionally, the outer peripheral wall of the threaded sleeve is provided with a limiting ring, and the inner peripheral wall of the mounting groove is provided with a limiting ring groove, wherein the limiting ring is rotatably embedded in the limiting ring groove.

[0019] Optionally, the limiting mechanism includes a driving component and a docking component. The docking component is mounted on the driving component. The threaded sleeve has an axially formed docking groove at one end away from the threaded groove. The driving component is used to drive the docking component to axially insert into or axially move away from the docking groove. When the docking component is inserted into the docking groove, the threaded sleeve is in a fixed state.

[0020] Optionally, the single-phase smart energy meter further includes a switching mechanism, which is located inside the meter body and is used to control the opening and closing of the drive component.

[0021] When the first fixing member fixes the first cover plate in the position covering the data storage area and the second fixing member fixes the second cover plate in the position covering the wiring area, the switching mechanism and the drive component are in a disconnected state so that the docking component is away from the docking groove.

[0022] When the first fixing member is removed and the first cover plate is rotated to the maximum opening position, the switching mechanism is electrically connected to the drive assembly, so that the drive assembly drives the docking assembly to insert into the abutment groove.

[0023] Optionally, the drive assembly includes a reset electric cylinder, the extension direction of the piston rod of the reset electric cylinder is consistent with the axis of the mounting groove, the docking assembly is disposed on the piston rod of the reset electric cylinder, and the piston rod of the reset electric cylinder automatically retracts in the de-energized state and automatically extends in the energized state.

[0024] Optionally, the docking assembly includes a docking cylinder and a limiting part. The docking cylinder is axially connected to the piston rod of the reset electric cylinder, and the docking cylinder and the docking groove are axially aligned. The limiting part is provided on the side wall of the docking cylinder.

[0025] The threaded sleeve has a limiting groove, which is located on the side wall of the mating circular groove. The mating circular groove can communicate with the outside through the limiting groove. The shape and size of the limiting groove are adapted to the limiting part.

[0026] The inner wall of the docking groove is provided with a guide slope, which extends spirally from the groove opening end of the docking groove to the limiting groove along the insertion direction of the docking groove.

[0027] When the limiting part and the limiting groove are misaligned in the axial direction, the limiting part can slide against the guide slope during axial movement, so that the limiting part enters the limiting groove under the guidance of the guide slope, and switches the threaded sleeve from the rotating state to the fixed state.

[0028] Optionally, the limiting portion has a chamfered end, which is used to slide in conjunction with the guide slope.

[0029] Optionally, the switching mechanism includes a battery body, a first conductive sheet, and a second conductive sheet. The meter body has a fitting groove for embedding the battery body. A rotating rod is provided on the side of the first cover plate away from the first opening. A rotating slot is provided on the meter body. The rotating rod is rotatably inserted into the rotating slot, and a torsion spring is sleeved on the rotating rod. One end of the torsion spring is connected to the rotating rod, and the other end is connected to the meter body. The torsion spring always has the tendency to drive the first cover plate to rotate to the maximum opening position.

[0030] The meter body is also provided with a transmission chamber, which is connected between the fitting groove and the rotating bar hole, and one end of the rotating rod extends into the transmission chamber.

[0031] The first conductive sheet is disposed in the transmission chamber and electrically connected to the battery body, and the second conductive sheet is connected to the rotating rod and connected to the drive assembly;

[0032] When the first cover plate is in the position that covers the data storage area, the second conductive sheet is distributed at intervals with the first conductive sheet.

[0033] When the first cover plate is rotated to the maximum opening position, the second conductive sheet and the first conductive sheet are electrically bonded together.

[0034] This application has at least the following beneficial technical effects:

[0035] When disassembling the electricity meter after a power outage, if the operator mistakenly attempts to remove the second fixing component first due to improper operation, the second fixing component will be locked and cannot be removed because the first fixing component is covering the data storage area. This prevents the wires in the terminal block from being disconnected first, thus effectively preventing data loss from the communication module. Generally, if an operator unfamiliar with the operating procedures makes a mistake and finds the second fixing component cannot be removed first, the operator will be guided to remove the first fixing component. Alternatively, the operator familiar with the operating procedures will be alerted to their error and return to the correct disassembly procedure. After removing the first fixing component, the first cover should be rotated to its maximum opening position. At this point, the first cover no longer obstructs the data storage area, and the second fixing component is unlocked and can be removed, allowing the communication module to be taken out. In other words, whether the operator is familiar with the operating procedures or not, the settings of the electricity meter in this application can effectively guide the operator to operate in a standardized manner, thereby effectively reducing the possibility of data loss from the communication module when the electricity meter is disassembled. Attached Figure Description

[0036] 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.

[0037] 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.

[0038] Figure 1 This is a schematic diagram of the overall structure of a single-phase smart energy meter in the embodiments of this application;

[0039] Figure 2 This is a schematic diagram of the state of the single-phase smart energy meter after the first cover is opened in the embodiment of this application;

[0040] Figure 3 This is a schematic diagram of the state of the single-phase smart energy meter after both the first cover plate and the second cover plate are opened in the embodiments of this application;

[0041] Figure 4 This is a first partial cross-sectional view of a single-phase smart energy meter in the first cover open state in an embodiment of this application;

[0042] Figure 5 yes Figure 4 Enlarged view of part A in the image;

[0043] Figure 6 This is a partial structural diagram used in the embodiments of this application to illustrate the positional relationship between the limiting mechanism and the threaded sleeve;

[0044] Figure 7 This is a partial sectional view of the threaded sleeve in an embodiment of this application;

[0045] Figure 8 This is a second partial cross-sectional view of a single-phase smart energy meter in the first cover plate open state in an embodiment of this application;

[0046] Figure 9 yes Figure 8 Enlarged view of part B in the image;

[0047] Figure 10 This is a schematic diagram illustrating the positional relationship of the rotating rod, the first conductive sheet, and the second conductive sheet in the embodiments of this application, used to show the first cover plate in the closed state and the first cover plate in the fully open state.

[0048] Explanation of reference numerals in the attached figures:

[0049] 1. Meter body; 11. Wiring area; 12. Data storage area; 13. First threaded hole; 14. Connecting seat; 141. Mounting groove; 142. Limiting ring groove; 15. Threaded sleeve; 151. Threaded groove; 152. Limiting ring; 153. Butt joint groove; 154. Limiting groove; 155. Guide slope; 16. Fitting groove; 17. Rotating bar hole; 18. Transmission chamber;

[0050] 2. Communication module;

[0051] 3. Terminal block assembly;

[0052] 4. First cover plate; 41. First opening; 42. Rotating rod; 43. Torsion spring;

[0053] 5. Second cover plate; 51. Second opening;

[0054] 6. First fastener; 61. First bolt;

[0055] 7. Second fastener; 71. Second bolt;

[0056] 8. Limiting mechanism; 81. Drive assembly; 811. Reset electric cylinder; 82. Docking assembly; 821. Docking cylinder; 822. Limiting part; 8221. Chamfered end;

[0057] 9. Switching mechanism; 91. Battery body; 92. First conductive sheet; 93. Second conductive sheet. Detailed Implementation

[0058] 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.

[0059] This application provides a single-phase smart energy meter; please refer to [link / reference]. Figure 1 , Figure 2 and Figure 3 The electricity meter includes a meter body 1, a communication module 2, a terminal block 3, a first cover plate 4, a second cover plate 5, a first fixing member 6, and a second fixing member 7.

[0060] For example, the single-phase smart energy meter uses the meter body 1 as its basic supporting structure. The interior of the meter body 1 is divided into a wiring area 11 and a data storage area 12 according to functional requirements. The wiring area 11 is mainly used to arrange the terminal block 3, while the data storage area 12 is used to arrange the communication module 2. By forming independent and functionally defined areas within the meter body 1, it is beneficial to distinguish between electrical connection operations and data processing operations at the structural level, providing spatial constraints for subsequent operation sequences.

[0061] For example, the communication module 2 is detachably installed within the data storage area 12. This detachability can be achieved through plug-in, snap-in, sliding fit, or other structural forms that meet the requirements of repeated assembly and disassembly. It is understood that when the communication module 2 is covered within the data storage area 12, it is isolated from the external environment, thereby reducing the risk of interference caused by non-standard operations to the communication module 2 to a certain extent. The communication module 2 performs data acquisition and storage functions in its installed state. Especially before and after the removal of the electricity meter, the data stored within the module requires continuity and integrity.

[0062] For example, terminal block 3 is disposed within wiring area 11 for input and output connection of wires. Terminal block 3 is usually energized or has residual charge, and its operation carries certain risks. Therefore, it is safer to shield wiring area 11 when not in operation. Furthermore, if wires are disconnected from terminal block 3, it may affect the internal working state of the electricity meter, thereby indirectly affecting the data stability within communication module 2.

[0063] For example, both the first cover plate 4 and the second cover plate 5 are rotatably connected to the meter body 1. The first cover plate 4 covers the data storage area 12, and the second cover plate 5 covers the wiring area 11. The rotatable connection allows the first cover plate 4 and the second cover plate 5 to have a clear spatial position change when switching between the closed and open states, thus providing an intuitive structural basis for position linkage and state judgment. When the first cover plate 4 is closed, it blocks the data storage area 12, restricting direct contact with the communication module 2; when the second cover plate 5 is closed, it blocks the wiring area 11, restricting direct operation of the terminal block group 3.

[0064] For example, the first fixing member 6 is configured as a detachable connection structure, and the connection position is located between the first cover plate 4 and the meter body 1. The second fixing member 7 is also configured as a detachable connection structure, and the connection position is located between the second cover plate 5 and the meter body 1.

[0065] Furthermore, in the installed state, the first fixing member 6 forms a fixed constraint on the first cover plate 4, keeping the first cover plate 4 in the position of covering the data storage area 12. The disassembly of the first fixing member 6 corresponds to the first cover plate 4 changing from a fixed state to a rotatable state, which is one of the prerequisites for the data storage area 12 to be operable.

[0066] When installed, the second fastener 7 provides a fixed constraint on the second cover plate 5, keeping it in position covering the wiring area 11. The second fastener 7 has two working states: a locked state and an unlocked state, each corresponding to different operability.

[0067] For example, in terms of structural fit, the first fixing member 6 and the second fixing member 7 are linked together. When the first fixing member 6 is in the position covering the data storage area 12, the second fixing member 7 is in a locked state. This locked state can be formed by mechanical interference, linkage component restriction, position constraint or other structural means. In the locked state, the second fixing member 7 cannot be properly removed, thereby maintaining the position of the second cover plate 5 covering the wiring area 11. At this time, the terminal block group 3 is in a non-operable state.

[0068] When the first fixing member 6 is removed and the first cover plate 4 rotates around the rotational connection position to the maximum open / closed position, the first cover plate 4 no longer obstructs the data storage area 12. In this position, the rotational posture of the first cover plate 4 is transmitted to the second fixing member 7 through the structural linkage, and the second fixing member 7 switches from the locked state to the unlocked state. In the unlocked state, the second fixing member 7 has the structural conditions to be removed, thereby enabling the second cover plate 5 to rotate, and the wiring area 11 enters the operable state.

[0069] Through the above structural design, the operational sequence is constrained at the structural level during the disassembly of a single-phase smart energy meter. When the operator attempts to operate the second fixing member 7 while the first cover plate 4 is still covering the data storage area 12, the operator cannot remove the second fixing member 7 because it is locked. This structural feedback, to a certain extent, conveys operational sequence information to the operator, guiding them to pay attention to the status of the first cover plate 4.

[0070] When the operator removes the first fixing member 6 according to the correct procedure and rotates the first cover plate 4 to its maximum open position, the data storage area 12 where the communication module 2 is located is exposed, and the communication module 2 is ready to be disassembled. Simultaneously, the second fixing member 7 is unlocked, the second cover plate 5 is ready to be removed, and the wiring area 11 subsequently becomes operable. This structural sequence ensures that the disassembly of the communication module 2 precedes the disassembly of the wiring in the terminal block group 3, which helps reduce the probability of data anomalies occurring in the communication module 2 under abnormal power outages or unstable conditions.

[0071] For operators unfamiliar with the operating procedures, when they encounter restrictions while attempting to directly manipulate wiring area 11, the structural constraints themselves serve as a prompt, guiding them to re-examine other operable parts of the electricity meter and gradually return to the compliant disassembly process. For operators familiar with the operating procedures, these structural constraints provide timely reminders at the initial stage of misoperation, helping to reduce the likelihood of operational errors.

[0072] In summary, by establishing clear linkage and state dependency relationships among the first fixing member 6, the first cover plate 4, the second fixing member 7, and the second cover plate 5, the disassembly sequence is logically constrained at the structural level. This is beneficial to standardizing the operation process to a certain extent, reducing the risk of adverse effects on the data stability of the communication module 2 due to improper operation sequence, while taking into account both operational safety and structural feasibility.

[0073] In some implementations, such as Figure 1 , Figure 2 As shown, the first fixing member 6 adopts the first bolt 61 as its specific structural form. The first cover plate 4 forms a first opening 41 on the side away from the rotatable connection with the meter body 1, and the first opening 41 penetrates through the first cover plate 4. The meter body 1 forms a corresponding first threaded hole 13 on the side close to the data storage area 12. The first opening 41 and the first threaded hole 13 are axially aligned when the first cover plate 4 is in the position of covering the data storage area 12. After the first bolt 61 passes through the first opening 41 in the axial direction, it forms a threaded connection with the first threaded hole 13, thereby forming a detachable fixing constraint between the first cover plate 4 and the meter body 1 at the structural level. Through the threaded engagement between the first bolt 61 and the first threaded hole 13, the first cover plate 4 maintains a stable posture of covering the data storage area 12 in the non-detached state. The communication module 2 is located inside the data storage area 12 and is in a covered state. A physical isolation boundary is formed between the communication module 2 and the external environment, which to a certain extent helps to reduce the possibility of external accidental touch or misoperation affecting the communication module 2.

[0074] For example, combined Figure 4 and Figure 5At the structural position corresponding to the first fixing member 6, the second fixing member 7 is implemented using a second bolt 71. A second opening 51 is formed through the center of the second cover plate 5, providing a passage for the second bolt 71. A connecting seat 14 is integrally formed in the center of the wiring area 11 of the meter body 1, with a mounting groove 141 formed inside the connecting seat 14. A threaded sleeve 15 is rotatably disposed inside the mounting groove 141, forming a rotational fit between the threaded sleeve 15 and the mounting groove 141. A threaded groove 151 is formed inside the threaded sleeve 15 for threaded connection with the second bolt 71. When the second cover plate 5 is in the position of covering the wiring area 11, the second opening 51 and the threaded groove 151 are aligned in the axial direction. The second bolt 71 passes through the second opening 51 and enters the threaded groove 151 to form a threaded engagement. The second cover plate 5 is fixed to the meter body 1 through the connection between the second bolt 71 and the threaded sleeve 15, thereby covering the wiring area 11. The terminal block 3 is located inside the wiring area 11 and is in a state where it cannot be directly operated.

[0075] In some implementations, such as Figure 4 and Figure 5 As shown, the single-phase smart energy meter also includes a limiting mechanism 8, which is telescopically connected inside the mounting groove 141 and is located axially below the threaded sleeve 15. The limiting mechanism 8 has different spatial relationships with the threaded sleeve 15 under different working states, thus affecting the rotational freedom of the threaded sleeve 15.

[0076] Specifically, when the first fixing member 6 fixes the first cover plate 4 to the position covered by the data storage area 12 by the first bolt 61, and the second fixing member 7 fixes the second cover plate 5 to the position covered by the wiring area 11 by the second bolt 71, the limiting mechanism 8 is in a retracted state and maintains a gap with the threaded sleeve 15, and the threaded sleeve 15 remains rotatable inside the mounting groove 141. In this state, although a threaded connection is formed between the second bolt 71 and the threaded sleeve 15, since the threaded sleeve 15 is not restricted from rotation, when the operator first removes the second bolt 71 and applies a rotation operation to the second bolt 71, the second bolt 71 and the threaded sleeve 15 tend to form a synchronous rotation relationship. The axial displacement trend of the second bolt 71 relative to the threaded sleeve 15 is weak, and the second bolt 71 is difficult to gradually withdraw along the direction of the thread groove 151. From the perspective of operation feedback, this is reflected in the fact that the second bolt 71 is in a state that is difficult to remove.

[0077] When the first fixing member 6 is removed and the first cover plate 4 rotates to its maximum opening position around the rotational connection position, the first cover plate 4 no longer obstructs the data storage area 12, and the communication module 2 is ready to be operated. During the change of the posture of the first cover plate 4, the limiting mechanism 8, which is linked to the first cover plate 4, changes state, from a contracted state to an extended state. In the extended state, the limiting mechanism 8 forms a limiting engagement with the threaded sleeve 15, restricting the rotational freedom of the threaded sleeve 15, and the threaded sleeve 15 is fixed inside the mounting groove 141. In this structural state, the second bolt 71 no longer rotates synchronously with the threaded sleeve 15 during rotation, but rather rotates relative to the threaded sleeve 15. The second bolt 71 gradually undergoes axial displacement within the threaded groove 151, and the second bolt 71 can exit the threaded groove 151 in the disengagement direction. The second cover plate 5 then enters a detachable state, and the wiring area 11 is subsequently ready for operation.

[0078] Through the mating structure between the first bolt 61, the first opening 41, and the first threaded hole 13, and the linkage structure between the second bolt 71, the second opening 51, the threaded sleeve 15, and the limiting mechanism 8, the first cover plate 4 and the second cover plate 5 form a structural dependency relationship in terms of disassembly sequence. This structural dependency guides the operator's disassembly behavior to a certain extent. When the first cover plate 4 is still covering the data storage area 12, the second bolt 71 is difficult to remove, and the wiring area 11 is difficult to enter the operation stage in advance. When the first cover plate 4 is opened first and enters the maximum opening position, the second bolt 71 gradually becomes removable, and the wiring area 11 subsequently enters the operation stage. Through the above structural configuration, it is beneficial to strengthen the operation logic of processing the communication module 2 first and then processing the terminal group 3 at the structural level, thereby reducing the risk of adverse effects on the data stability of the communication module 2 due to improper disassembly sequence to a certain extent, while taking into account both structural reliability and practical operation feasibility.

[0079] In some implementations, combined with Figure 4 , Figure 5 The outer peripheral wall of the threaded sleeve 15 is provided with a limiting ring 152, and the inner peripheral wall of the mounting groove 141 is provided with a limiting ring groove 142. The limiting ring 152 is rotatably embedded in the limiting ring groove 142, so that the position of the threaded sleeve 15 can be limited within the connecting seat 14, making it difficult for the threaded sleeve 15 to come out.

[0080] In some implementations, such as Figure 4 , Figure 5As shown, the limiting mechanism 8 includes a drive component 81 and a docking component 82, which form a transmission and displacement cooperation relationship. The drive component 81 is installed inside the meter body 1 and is arranged in a direction that is basically consistent with the axis of the threaded sleeve 15. The drive component 81 can be in an active or inactive state under the control of the on / off mechanism 9. The docking component 82 is installed at the output end of the drive component 81 and can be linearly displaced in the axial direction under the drive of the drive component 81. The threaded sleeve 15 has an axially formed docking groove 153 at the end opposite to the threaded groove 151. The groove opening of the docking groove 153 faces the moving direction of the docking component 82. The inner diameter of the docking groove 153 is adapted to the outer diameter of the docking component 82, thus providing a structural basis for the axial insertion and cooperation between the two. When the docking assembly 82 is inserted into the docking groove 153 in the axial direction, a radial and axial double limiting relationship is formed between the docking assembly 82 and the threaded sleeve 15. The rotational freedom of the threaded sleeve 15 inside the mounting groove 141 is restricted, and the threaded sleeve 15 is in a fixed state. When the docking assembly 82 moves away from the docking groove 153 in the axial direction, the threaded sleeve 15 returns to a rotatable state inside the mounting groove 141.

[0081] For example, in the control path of the drive component 81, the single-phase smart energy meter is further provided with an on / off mechanism 9. The on / off mechanism 9 is arranged inside the meter body 1 and forms an electrical connection with the drive component 81. The on / off mechanism 9 is used to control the opening and closing state of the drive component 81. The on / off mechanism 9 can adopt a mechanical trigger, an electrical contact trigger, or a trigger structure associated with the attitude of the first cover plate 4. The on / off mechanism 9 provides different working conditions to the drive component 81 under different structural conditions, thereby indirectly controlling the relative positional relationship between the docking component 82 and the docking groove 153.

[0082] Specifically, when the first fixing member 6 fixes the first cover plate 4 to the position covered by the data storage area 12 with the first bolt 61, and the second fixing member 7 fixes the second cover plate 5 to the position covered by the wiring area 11 with the second bolt 71, the switching mechanism 9 and the drive assembly 81 are in a disconnected state. The drive assembly 81 does not have the conditions to start, and the docking assembly 82 remains axially away from the docking groove 153 under the structural constraints of the drive assembly 81. In this structural state, the threaded sleeve 15 remains rotatable inside the mounting groove 141. At this time, although the second bolt 71 forms a threaded connection with the threaded groove 151 inside the threaded sleeve 15, since the threaded sleeve 15 is not fixed, when the operator applies a rotation operation to the second bolt 71, the threaded sleeve 15 and the second bolt 71 are more likely to form a synchronous rotation relationship. The axial withdrawal tendency of the second bolt 71 relative to the threaded sleeve 15 is weak. From the perspective of operation feedback, this is reflected in the second fixing member 7 being in a state that is not easy to remove. This state, to a certain extent, limits the wiring area 11 from entering the operable stage before the communication module 2 has been processed.

[0083] Furthermore, when the first fixing member 6 is removed and the first cover plate 4 rotates around the rotational connection position to the maximum opening position, the first cover plate 4 no longer obstructs the data storage area 12, and the communication module 2 is ready to be operated. During the change of the posture of the first cover plate 4, the structural state of the switching mechanism 9 is switched, and the switching mechanism 9 and the drive component 81 enter a conductive state, and the drive component 81 obtains the start-up conditions and begins to work. In the working state, the drive component 81 drives the docking component 82 to move along the axial direction, and the docking component 82 gradually moves towards the docking groove 153 and finally inserts into the docking groove 153. As the docking component 82 and the docking groove 153 form an insertion fit, the rotational freedom of the threaded sleeve 15 inside the mounting groove 141 is restricted, and the threaded sleeve 15 is in a fixed state.

[0084] Based on this, with the threaded sleeve 15 in a fixed state, the second bolt 71 no longer rotates synchronously with the threaded sleeve 15 during rotation, but rather rotates relative to it. The second bolt 71 gradually undergoes axial displacement along the thread groove 151, and the second fixing member 7 gradually enters a detachable state. After the operator disassembles the first fixing member 6 and opens the first cover plate 4, the second fixing member 7 is then operated on, and the second cover plate 5 subsequently enters an openable state, making the wiring area 11 ready for operation.

[0085] In some implementations, combined with Figure 4 , Figure 5 and Figure 6The drive assembly 81 specifically employs a reset cylinder 811 as its actuating structure. The reset cylinder 811 is installed inside the meter body 1 and spatially adjacent to the mounting groove 141. The piston rod of the reset cylinder 811 extends axially, its extension direction aligning with the axis of the mounting groove 141, thus providing stable guidance for the linear movement of the docking assembly 82 in the axial direction. The reset cylinder 811 has two basic operating states: a power-off state and a power-on state. In the power-off state, the reset structure inside the reset cylinder 811 drives the piston rod to remain in a retracted position. In the power-on state, the reset cylinder 811, driven by electrical energy, pushes the piston rod to extend outward in the axial direction. This operating characteristic allows the reset cylinder 811 to be in a default retracted state when not powered, and automatically enter the advancing state after being powered on, which is beneficial for constructing displacement control logic associated with the opening and closing state of the first cover plate 4.

[0086] For example, the docking assembly 82 is mounted on the piston rod of the reset cylinder 811, and the docking assembly 82 moves synchronously with the piston rod in the axial direction. The docking assembly 82 includes two parts: a docking cylinder 821 and a limiting part 822. The docking cylinder 821 is axially connected to the end of the piston rod, and the axis of the docking cylinder 821 is aligned with the axis of the piston rod of the reset cylinder 811. The threaded sleeve 15 forms a docking groove 153 axially at the end opposite to the threaded groove 151. The axis of the docking groove 153 is aligned with the axis of the mounting groove 141. The docking cylinder 821 and the docking groove 153 are aligned in the axial direction, thereby providing a structural basis for subsequent axial insertion.

[0087] For example, the limiting part 822 is disposed on the side wall of the mating cylinder 821, and the limiting part 822 protrudes outward in the radial direction. The threaded sleeve 15 has a limiting groove 154 on the side wall of the mating groove 153. The limiting groove 154 is spatially connected to the mating groove 153, and the shape and size of the limiting groove 154 are adapted to the limiting part 822, thereby providing conditions for the two to form a limiting insertion relationship. The inner wall surface of the mating groove 153 is further formed with a guiding slope 155, which extends spirally along the insertion direction of the mating groove 153, gradually extending from the groove opening end of the mating groove 153 to the location of the limiting groove 154. The setting of the guiding slope 155 gives the limiting part 822 a tendency to undergo relative displacement in the circumferential direction during axial movement.

[0088] It is worth noting that, combined Figure 6 , Figure 7 Two limiting grooves 154 can be provided symmetrically, and each limiting groove 154 corresponds to a guide slope 155. In this way, no matter what position the threaded sleeve 15 is in, the limiting part 822 can be finally inserted into the limiting groove 154 under the guidance of the guide slope 155 to fix the threaded sleeve 15.

[0089] In some implementations, such as Figure 4 , Figure 8 and Figure 9 As shown, the switching mechanism 9 includes a battery body 91, a first conductive sheet 92, and a second conductive sheet 93. The meter body 1 has a fitting groove 16 for inserting the battery body 91. The first cover plate 4 has a rotating rod 42 on the side away from the first opening 41. The meter body 1 has a rotating bar hole 17. The rotating rod 42 is rotatably inserted into the rotating bar hole 17, and a torsion spring 43 is sleeved on the rotating rod 42. One end of the torsion spring 43 is connected to the rotating rod 42, and the other end is connected to the meter body 1. The torsion spring 43 always has the tendency to drive the first cover plate 4 to rotate to the maximum opening position.

[0090] For example, the meter body 1 is further provided with a transmission chamber 18, which is connected between the fitting groove 16 and the rotating bar hole 17. One end of the rotating rod 42 extends into the transmission chamber 18. Further, the first conductive sheet 92 is disposed in the transmission chamber 18 and electrically connected to the battery body 91, and the second conductive sheet 93 is connected to the rotating rod 42 and connected to the drive assembly 81. When the first cover plate 4 is in the position of covering the data storage area 12, the second conductive sheet 93 and the first conductive sheet 92 are spaced apart. When the first cover plate 4 is rotated to the maximum opening position, the second conductive sheet 93 and the first conductive sheet 92 are electrically bonded.

[0091] It is understandable that when the reset cylinder 811 is de-energized, the piston rod remains in a retracted state, the mating cylinder 821 and the mating groove 153 maintain an axial distance, the limiting part 822 is away from the limiting groove 154, and the threaded sleeve 15 remains rotatable inside the mounting groove 141. In this structural state, a threaded connection is formed between the second bolt 71 and the threaded sleeve 15. However, since the threaded sleeve 15 has a degree of rotational freedom, when the operator applies a rotational operation to the second bolt 71, the threaded sleeve 15 and the second bolt 71 are more likely to form a synchronous rotational relationship. The tendency of the second bolt 71 to retract in the axial direction is weak. From the perspective of user experience, this means that the second fixing part 7 is in a state that is not easy to disassemble.

[0092] Combination Figure 8 , Figure 9 and Figure 10When the first fixing member 6 is removed, the first cover plate 4 automatically rotates around the rotating rod 42 under the elastic action of the torsion spring 43. The first cover plate 4 gradually rotates and eventually reaches the maximum opening position. During the rotation of the first cover plate 4, the rotating rod 42 rotates synchronously. One end of the rotating rod 42 extends into the transmission chamber 18, causing the second conductive sheet 93 connected to the rotating rod 42 to change position synchronously. In the switching mechanism 9, the first conductive sheet 92 is fixedly installed inside the transmission chamber 18 and maintains an electrical connection with the battery body 91. When the first cover plate 4 is in the position of covering the data storage area 12, the second conductive sheet 93 and the first conductive sheet 92 are spatially spaced apart, and no complete conductive path is formed between the battery body 91 and the drive assembly 81. As the first cover plate 4 rotates to the maximum opening position, the rotating rod 42 rotates synchronously, and the second conductive sheet 93 gradually approaches the first conductive sheet 92 and finally forms a conductive contact state. The electrical energy of the battery body 91 is transferred to the reset cylinder 811 through the first conductive sheet 92 and the second conductive sheet 93, and the reset cylinder 811 enters the energized state.

[0093] After the reset cylinder 811 is energized, the piston rod extends outward in the axial direction, and the docking cylinder 821 gradually moves towards the docking groove 153 under the action of the piston rod. During the process of the docking cylinder 821 entering the docking groove 153, if the limiting part 822 and the limiting groove 154 are misaligned in the axial position, the limiting part 822 will first make sliding contact with the guide slope 155 during axial advancement. Since the guide slope 155 extends spirally along the circumference, the limiting part 822 generates a component force along the circumference while being subjected to axial force. Under the guidance of the guide slope 155, the limiting part 822 gradually slides along the slope, correspondingly causing the threaded sleeve 15 to rotate at a certain angle. As the docking cylinder 821 continues to advance forward, the limiting part 822 gradually approaches the position of the limiting groove 154 along the guide slope 155 and finally enters the interior of the limiting groove 154. After the limiting part 822 enters the limiting groove 154, the limiting part 822 and the limiting groove 154 form a matching relationship in the radial and circumferential directions, the rotational freedom of the threaded sleeve 15 is restricted, and the threaded sleeve 15 is in a fixed state.

[0094] With the threaded sleeve 15 in a fixed state, the second bolt 71 no longer rotates synchronously with the threaded sleeve 15 during rotation, but rather rotates relative to it. The second bolt 71 gradually undergoes axial displacement along the thread groove 151, and the second fixing member 7 gradually enters a detachable state. After the operator opens the first cover plate 4 and removes the communication module 2, they then operate the second fixing member 7. The second cover plate 5 then enters an openable state, and the wiring area 11 enters an operable stage.

[0095] For example, in the above structural configuration, combined with Figure 6The limiting part 822 is provided with a chamfered end 8221, which is used to form a smoother sliding fit with the guide slope 155. The chamfered end 8221 helps to reduce local contact resistance during the initial contact stage between the limiting part 822 and the guide slope 155, making it easier for the limiting part 822 to slide along the guide slope 155 during axial advancement. This helps the limiting part 822 to smoothly enter the limiting groove 154 and enhances the reliability of the limiting action.

[0096] Based on this, through the coordinated configuration of the reset electric cylinder 811, the docking cylinder 821, the limiting part 822, the guide slope 155, the limiting groove 154, and the switching mechanism 9, a clear structural relationship is formed between the opening and closing state of the first cover plate 4 and the rotational property of the threaded sleeve 15. This structural relationship, to a certain extent, provides physical guidance for the disassembly sequence. When the first cover plate 4 is not yet opened, the second fixing member 7 is in a difficult-to-disassemble state. After the first cover plate 4 is opened and enters the maximum opening and closing position, the second fixing member 7 gradually becomes detachable. This configuration is beneficial in guiding operators to process the data storage area 12 where the communication module 2 is located first, and then process the wiring area 11, thereby reducing the risk of adverse effects on the data stability of the communication module 2 due to an unreasonable operation sequence to a certain extent, while taking into account structural feasibility, action continuity, and safety and reliability in actual operation.

[0097] It is worth noting that when installing the wires of the communication module 2 and the terminal block 3, the first cover plate 4 must be opened first and the reset cylinder 811 must be in the extended state. That is, the wires of the terminal block 3 must be installed first. After installation, the second cover plate 5 must be tightened with the second bolt 71 before the communication module 2 can be installed and the first cover plate 4 can be closed.

[0098] 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.

[0099] 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.

[0100] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0101] 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. A single-phase smart energy meter, characterized in that, include: The meter body (1) has a wiring area (11) and a data storage area (12); The communication module (2) is detachably installed in the data storage area (12); A terminal block assembly (3) is located within the wiring area (11); The first cover plate (4) and the second cover plate (5) are both rotatably connected to the meter body (1). The first cover plate (4) is used to cover the data storage area (12), and the second cover plate (5) is used to cover the wiring area (11). The first fixing member (6) is detachably connected between the first cover plate (4) and the meter body (1) to fix the first cover plate (4) in a position that covers the data storage area (12); The second fixing member (7) is detachably connected between the second cover plate (5) and the meter body (1) to fix the second cover plate (5) in a position that covers the wiring area (11); the second fixing member (7) includes a second bolt (71), a second opening (51) is provided through the middle of the second cover plate (5), a connecting seat (14) is provided on the meter body (1) in the middle of the wiring area (11), an installation groove (141) is provided on the connecting seat (14), a threaded sleeve (15) is rotatably provided in the installation groove (141), a threaded groove (151) is provided in the threaded sleeve (15), when the second cover plate (5) is in the position that covers the wiring area (11), the second opening (51) and the threaded groove (151) are directly opposite each other, and the second bolt (71) can pass through the second opening (51) and be threadedly connected to the threaded groove (151); The single-phase smart energy meter also includes a limiting mechanism (8), which is telescopically connected to the mounting groove (141) and located below the threaded sleeve (15). The limiting mechanism (8) includes a driving component (81) and a docking component (82). The docking component (82) is mounted on the driving component (81). The threaded sleeve (15) has an axially formed docking groove (153) at one end away from the threaded groove (151). The driving component (81) is used to drive the docking component (82) to axially insert into or axially move away from the docking groove (153). When the docking component (82) is inserted into the docking groove (153), the threaded sleeve (15) is in a fixed state. When the first fixing member (6) is in the position of covering the data storage area (12), the second fixing member (7) is in the locked state and cannot be removed. That is, when the first fixing member (6) fixes the first cover plate (4) in the position of covering the data storage area (12) and the second fixing member (7) fixes the second cover plate (5) in the position of covering the wiring area (11), the limiting mechanism (8) is spaced apart from the threaded sleeve (15) so that the threaded sleeve (15) remains in a rotating state. When the first fixing member (6) is removed and the first cover plate (4) is rotated to the maximum opening position, the second fixing member (7) is in the unlocked state and can be removed. That is, when the first fixing member (6) is removed and the first cover plate (4) is rotated to the maximum opening position, the limiting mechanism (8) automatically extends and engages with the threaded sleeve (15) to limit the threaded sleeve (15) so that the threaded sleeve (15) is in the fixed state.

2. The single-phase smart energy meter according to claim 1, characterized in that, The first fixing member (6) includes a first bolt (61). The first cover plate (4) has a first opening (41) on the side away from the rotating connection. The meter body (1) has a first threaded hole (13) on the side of the data storage area (12). When the first cover plate (4) is in the position of covering the data storage area (12), the first opening (41) and the first threaded hole (13) are directly opposite each other. The first bolt (61) can pass through the first opening (41) and be threadedly connected to the first threaded hole (13) to fix the first cover plate (4) on the meter body (1).

3. The single-phase smart energy meter according to claim 1, characterized in that, The outer peripheral wall of the threaded sleeve (15) is provided with a limiting ring (152), and the inner peripheral wall of the mounting groove (141) is provided with a limiting ring groove (142). The limiting ring (152) is rotatably embedded in the limiting ring groove (142).

4. The single-phase smart energy meter according to claim 1, characterized in that, The single-phase smart energy meter also includes a switching mechanism (9), which is located inside the meter body (1) and is used to control the opening and closing of the drive assembly (81). When the first fixing member (6) fixes the first cover plate (4) in the position covering the data storage area (12) and the second fixing member (7) fixes the second cover plate (5) in the position covering the wiring area (11), the switching mechanism (9) and the drive assembly (81) are disconnected so that the docking assembly (82) is away from the docking groove (153). When the first fixing member (6) is removed and the first cover plate (4) is rotated to the maximum opening position, the switching mechanism (9) is electrically connected to the drive assembly (81) so that the drive assembly (81) drives the docking assembly (82) to insert into the abutment groove.

5. The single-phase smart energy meter according to claim 1, characterized in that, The drive assembly (81) includes a reset electric cylinder (811), the extension direction of the piston rod of the reset electric cylinder (811) is consistent with the axis of the mounting groove (141), the docking assembly (82) is disposed on the piston rod of the reset electric cylinder (811), and the piston rod of the reset electric cylinder (811) automatically retracts in the power-off state and automatically extends in the power-on state.

6. The single-phase smart energy meter according to claim 5, characterized in that, The docking assembly (82) includes a docking cylinder (821) and a limiting part (822). The docking cylinder (821) is axially connected to the piston rod of the reset electric cylinder (811), and the docking cylinder (821) and the docking groove (153) are axially aligned. The limiting part (822) is provided on the side wall of the docking cylinder (821). The threaded sleeve (15) has a limiting groove (154) which is located on the side wall of the mating circular groove (153). The mating circular groove (153) can communicate with the outside through the limiting groove (154). The shape and size of the limiting groove (154) are adapted to the limiting part (822). The inner wall of the docking groove (153) is provided with a guide slope (155). Along the insertion direction of the docking groove (153), the guide slope (155) extends spirally from the groove end of the docking groove (153) to the limiting groove (154). When the limiting part (822) and the limiting groove (154) are misaligned in the axial direction, the limiting part (822) can slide against the guide slope (155) during the axial movement, so that the limiting part (822) enters the limiting groove (154) under the guidance of the guide slope (155), and switches the threaded sleeve (15) from the rotating state to the fixed state.

7. The single-phase smart energy meter according to claim 6, characterized in that, The limiting part (822) has a chamfered end (8221) for sliding engagement with the guide slope (155).

8. The single-phase smart energy meter according to claim 4, characterized in that, The switching mechanism (9) includes a battery body (91), a first conductive sheet (92) and a second conductive sheet (93). The meter body (1) has a fitting groove (16) for the battery body (91) to be inserted. The first cover plate (4) has a rotating rod (42) on the side away from the first opening (41). The meter body (1) has a rotating slot (17). The rotating rod (42) is rotatably inserted into the rotating slot (17). A torsion spring (43) is sleeved on the rotating rod (42). One end of the torsion spring (43) is connected to the rotating rod (42) and the other end is connected to the meter body (1). The torsion spring (43) always has the tendency to drive the first cover plate (4) to rotate to the maximum opening position. The meter body (1) is also provided with a transmission chamber (18), which is connected between the fitting groove (16) and the rotating bar hole (17). One end of the rotating rod (42) extends into the transmission chamber (18). The first conductive sheet (92) is disposed in the transmission chamber (18) and electrically connected to the battery body (91), and the second conductive sheet (93) is connected to the rotating rod (42) and connected to the drive assembly (81); When the first cover plate (4) is in the position of covering the data storage area (12), the second conductive sheet (93) and the first conductive sheet (92) are distributed at intervals. When the first cover plate (4) is rotated to the maximum opening position, the second conductive sheet (93) and the first conductive sheet (92) are electrically bonded.

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