Three-phase intelligent electric energy meter

Abstract

The application relates to a three-phase intelligent electric energy meter, and relates to the technical field of electric meters, which comprises an electric meter body provided with a communication bin and a battery bin, a pluggable communication module and a battery module. A shielding mechanism and a plugging mechanism are arranged in the electric meter body. The shielding mechanism shields the upper end opening of the battery bin in the state that the communication module is not installed, and opens the battery bin after the plugging of the communication module is completed. The plugging mechanism is embedded into a pull slot of the communication module when the battery module is inserted, and is withdrawn from the pull slot after the battery module is taken out. Through the mechanical linkage structure of shielding and plugging, the communication module and the battery module are guided to be installed and disassembled in a predetermined order, and compared with the prior art, the probability of misoperation can be reduced, and the damage risk of the battery module and the communication module can be further reduced.

Description

Technical Field

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

[0002] Currently, three-phase energy meters are equipped with a communication module and a battery, both of which are detachable. Since the communication module enables data transmission between the energy meter and external systems, it is crucial. For example, Chinese patent application CN120761702A discloses a three-phase intelligent multi-functional energy meter, which includes a meter body, a communication module, a battery body, a first limiting mechanism, and a second limiting mechanism. The first limiting mechanism blocks the battery body from entering the battery compartment when the communication module is not installed, guiding the installation of the communication module first. After the communication module is installed, it automatically releases the obstruction to the battery compartment, allowing the battery body to be installed smoothly. The second limiting mechanism restricts the disassembly of the communication module when the battery body is not removed, guiding the removal of the battery body first and then the communication module. This prevents the communication module from being accidentally removed while powered on or off, thus helping to avoid problems such as power loss, hot-swapping, or electrical breakdown of the communication module due to misoperation, improving the reliability and safety of energy meter maintenance.

[0003] Upon investigation, the applicant discovered that during actual installation, users could still damage the communication module and battery due to misoperation when disassembling and reassembling the three-phase energy meter. Summary of the Invention

[0004] This application provides a three-phase smart energy meter to at least partially solve the above-mentioned technical problems.

[0005] To achieve the above objectives, this application provides a three-phase smart energy meter, comprising:

[0006] The meter body has a communication compartment and a battery compartment;

[0007] The communication module can be plugged into the communication compartment, and two lifting slots are symmetrically provided on the upper surface of the communication module;

[0008] The battery module can be plugged into and installed inside the battery compartment;

[0009] A blocking mechanism is movably disposed within the meter body. The blocking mechanism is configured to completely block the upper opening of the battery compartment when the communication module is not installed in the communication compartment, and to completely open the upper opening of the battery compartment when the communication module is inserted into the communication compartment.

[0010] A sealing mechanism is movably disposed within the meter body. The sealing mechanism is configured to partially embed itself in one of the pull-out slots when the battery module is inserted into the battery compartment to seal the pull-out slot, and to automatically retract from the pull-out slot when the battery module is removed from the battery compartment to release the seal on the pull-out slot.

[0011] Optionally, the shielding mechanism includes a covered component and an elastic abutting component connected to each other. A sliding cavity is provided inside the meter body. The sliding cavity is connected to both the communication compartment and the battery compartment. Both the covered component and the elastic abutting component are slidably disposed in the sliding cavity.

[0012] When the communication module is not installed in the communication compartment and the battery module is not installed in the battery compartment, the covering component automatically slides out from the sliding cavity under the action of the elastic abutment component and completely covers the upper opening of the battery compartment to hide the battery compartment.

[0013] When the communication module is installed into the communication compartment, the cover component slides completely into the sliding cavity under the pushing action of the communication module, opening the upper opening of the battery compartment to expose the battery compartment.

[0014] Optionally, the covering assembly includes cylindrical rods and a covering film. Multiple cylindrical rods are arranged sequentially, and the covering film covers the periphery of the multiple cylindrical rods. The battery compartment includes an upper slot and a battery slot. The battery slot is formed on the inner bottom wall of the upper slot and is used for inserting a battery module. The upper slot has a square cross-sectional shape. The length of the cylindrical rod is greater than the opening width of the upper slot. Side grooves are formed on the two opposite inner walls of the upper slot near the opening. The side grooves are aligned with the width direction of the upper slot and communicate with a sliding cavity. The two ends of the cylindrical rod are slidably inserted into the side grooves.

[0015] An end groove is also provided on the inner wall of the side away from the sliding cavity of the upper slot. The two ends of the end groove are respectively perpendicularly connected to one of the side grooves. When the communication module is not installed in the communication compartment and the battery module is not installed in the battery compartment, the first end of the covering component away from the elastic abutment component is embedded in the end groove and the second end close to the elastic abutment component extends into the sliding cavity to completely cover the upper slot.

[0016] Optionally, the elastic abutment assembly includes a first spring and an abutment block, the sliding cavity includes a transverse slide, an arc-shaped slide and a vertical slide, the arc-shaped slide connects the transverse slide and the vertical slide, the first end of the first spring is connected to the bottom wall of the vertical slide, and the second end extends along the length of the vertical slide towards the side close to the arc-shaped slide.

[0017] The abutment block is connected to the second end of the first spring. The second end of the cover assembly passes through the horizontal slide and the arc-shaped slide and is connected to the side of the abutment block away from the first spring in the vertical slide. The meter body also has a connecting channel that extends in the same direction as the vertical slide. The vertical slide is connected to the communication compartment through the connecting channel. The abutment block extends into the communication compartment after passing through the connecting channel. When the first spring is in its natural state, the first end of the cover assembly is embedded in the end groove and the second end is located in the vertical slide.

[0018] Optionally, the abutting block includes a sliding part and an extension part connected to each other. The sliding part is slidably inserted into the vertical slide rail and partially extends into the communication compartment. The extension part is located at the end of the sliding part that extends into the communication compartment, and the width of the extension part is greater than the width of the sliding part.

[0019] Optionally, a receiving groove is also provided on the bottom wall of the communication compartment. The receiving groove is connected to the vertical slide, the connecting channel and the communication compartment, and the receiving groove is located below the connecting channel.

[0020] When the communication module is inserted into the communication compartment and abuts against the inner bottom wall of the communication compartment, the extension is embedded in the receiving groove under the pushing action of the communication module.

[0021] Optionally, the blocking mechanism includes a blocking component and a stop component. The meter body has a vertically connected sliding cavity and a moving cavity. The blocking component is slidably disposed in the sliding cavity, and the stop component is slidably disposed in the moving cavity. The blocking component and the stop component are in a transmission cooperation.

[0022] The sliding cavity has an opening at one end away from the moving cavity that is connected to the communication compartment, and the moving cavity has an opening at one end away from the sliding cavity that is connected to the battery slot. When the communication module is inserted into the communication compartment, the end opening of the sliding cavity is directly opposite one of the lifting slots.

[0023] When the battery module is not inserted into the battery slot, the end of the stop component away from the sealing component extends into the battery slot, and the sealing component is completely located in the sliding cavity.

[0024] After the battery module is inserted into the battery slot, the stop assembly moves within the moving cavity under the squeezing action of the battery module, so that the sealing assembly is partially inserted into the lifting groove under the pushing action of the stop assembly.

[0025] Optionally, the stop assembly includes a stop post, an end block, and a second spring. The stop post is slidably inserted into the moving cavity. A side groove is provided parallel to the side wall of the moving cavity. The end block is slidably inserted into the side groove and connected to the stop post. One end of the second spring is connected to the end block, and the other end is connected to the inner end wall of the side groove. When the second spring is in its natural state, the first end of the stop post is located in the battery slot, and the second end is pressed against the sealing assembly.

[0026] Optionally, the sealing assembly includes a sealing block, a compression plate, and a third spring. The sealing block is slidably inserted into the sliding cavity, and the shape and size of the sealing block are adapted to the lifting groove. The compression plate is located at the end of the sealing block away from the lifting groove, and the compression plate is provided with a first fitting slope. The second end of the stop post is provided with a second fitting slope. The first fitting slope and the second fitting slope slide and compress together.

[0027] One end of the third spring is connected to the end wall of the sealing block away from the lifting groove, and the other end is connected to the inner end wall of the sliding cavity away from the lifting groove. The third spring is also misaligned with the extrusion plate.

[0028] When the third spring is in its natural state, the sealing block is located within the sliding cavity.

[0029] After the battery module is inserted into the battery slot, the second fitting slope presses against the first fitting slope to make the sealing block embed into the lifting groove.

[0030] Optionally, the battery module includes a positioning post and a battery body. The positioning post is disposed on the side wall of the battery body. The battery slot includes a positioning groove and an insertion groove. The positioning post is inserted into the positioning groove, and the battery body is inserted into the insertion groove. The first end of the stop post can extend into the positioning groove.

[0031] The lower end of the positioning post has a third fitting slope, and the first end of the stop post has a fourth fitting slope. The third fitting slope and the fourth fitting slope slide and press together.

[0032] This application has at least the following beneficial technical effects:

[0033] When installing the communication module and battery module, the shielding mechanism obscures the battery compartment, making it visible only to the user. Even users without prior installation training will likely install the communication module first into the easily visible compartment. After installation, the top opening of the battery compartment will open, allowing the user to install the battery module. In other words, the shielding mechanism automatically guides inexperienced users to install the communication module first, then the battery module, preventing issues like power loss, hot-swapping, or electrical breakdown due to misoperation. More importantly, because the initial shielding of the battery compartment prevents users from easily spotting it, it also discourages forced installation of the battery module, effectively preventing damage caused by untrained users attempting installation.

[0034] After the battery module is installed in the battery compartment, the sealing mechanism automatically blocks one of the lifting slots. This prevents users from simultaneously gripping both slots with their fingers during disassembly. Furthermore, because one slot is blocked, users have no leverage point on the communication module and cannot forcibly remove it from the compartment. This makes the communication module less susceptible to damage. Users are guided to remove the battery module from the compartment first, ensuring the communication module is not damaged and guiding maintenance personnel to remove it only after removing the battery module. This avoids the risk of the communication module being hot-swapped while energized or experiencing a sudden power loss, which could lead to module burnout or data corruption. Attached Figure Description

[0035] 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.

[0036] 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.

[0037] Figure 1 This is a schematic diagram of the overall structure of the three-phase smart energy meter provided in the embodiments of this application;

[0038] Figure 2 This is a schematic diagram of the three-phase smart energy meter provided in this application before the communication module and battery module are inserted;

[0039] Figure 3 This is a schematic diagram of the structure of the three-phase smart energy meter provided in this application embodiment after both the communication module and the battery module have been inserted;

[0040] Figure 4 This is a first partial cross-sectional view of the three-phase smart energy meter provided in the embodiments of this application, used to show the shielding mechanism;

[0041] Figure 5 yes Figure 4 An enlarged schematic diagram of part A in the diagram;

[0042] Figure 6 This is a second partial cross-sectional view of the three-phase smart energy meter provided in the embodiments of this application, used to show the shielding mechanism;

[0043] Figure 7 yes Figure 6 An enlarged schematic diagram of part B in the diagram;

[0044] Figure 8 This is a first partial cross-sectional view of the three-phase smart energy meter provided in the embodiments of this application, used to illustrate the blocking mechanism;

[0045] Figure 9 yes Figure 8 An enlarged schematic diagram of part C in the diagram;

[0046] Figure 10 This is a second partial cross-sectional view of the three-phase smart energy meter provided in the embodiments of this application, used to illustrate the blocking mechanism;

[0047] Figure 11 yes Figure 10 An enlarged schematic diagram of part D in the diagram.

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

[0049] 1. Meter body; 11. Communication compartment; 12. Battery compartment; 121. Slot; 122. Battery slot; 1221. Positioning groove; 1222. Insertion groove; 13. Sliding cavity; 131. Horizontal slide rail; 132. Arc slide rail; 133. Vertical slide rail; 14. Side groove; 15. End groove; 16. Connecting channel; 17. Receiving groove; 18. Sliding cavity; 19. Moving cavity; 191. Side groove;

[0050] 2. Communication module; 21. Lifting groove;

[0051] 3. Battery module; 31. Positioning post; 311. Third bonding slope; 32. Battery body;

[0052] 4. Shielding mechanism; 41. Covering assembly; 411. Cylindrical rod; 412. Covering film; 42. Elastic abutment assembly; 421. First spring; 422. Abutment block; 4221. Sliding part; 4222. Extension part;

[0053] 5. Sealing mechanism; 51. Sealing assembly; 511. Sealing block; 512. Extrusion plate; 5121. First contacting inclined surface; 513. Third spring; 52. Stopping assembly; 521. Stopping post; 5211. Second contacting inclined surface; 5212. Fourth contacting inclined surface; 522. End block; 523. Second spring. Detailed Implementation

[0054] 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.

[0055] This application provides a three-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 battery module 3, a shielding mechanism 4, and a sealing mechanism 5.

[0056] The meter body 1 contains an independently arranged communication compartment 11 and a battery compartment 12. The communication compartment 11 and the battery compartment 12 are located on the outside of the meter body 1 and have different insertion positions. The communication compartment 11 is configured to allow the communication module 2 to be inserted and installed in a preset insertion direction, and the battery compartment 12 is configured to allow the battery module 3 to be inserted and installed in a preset direction.

[0057] For example, the communication module 2 is a detachable structure, and two lifting grooves 21 are symmetrically arranged on the upper surface of the communication module 2. The lifting grooves 21 are recessed inward and are used to provide lifting force space for the fingers during the disassembly of the communication module 2. Furthermore, the battery module 3 is also a detachable structure and is used to provide working power to the communication module 2.

[0058] For example, the shielding mechanism 4 is movably disposed inside the meter body 1. The shielding mechanism 4 has two working states relative to the upper opening of the battery compartment 12: a shielded position and an open position. There is a positional relationship between the shielding mechanism 4 and the insertion state of the communication module 2. When the communication module 2 is not inserted into the communication compartment 11, the shielding mechanism 4 is in the shielded position. In this shielded position, the shielding mechanism 4 covers the upper opening area of ​​the battery compartment 12, so that the battery compartment 12 is in a state that is not easily observed directly or does not have the conditions for direct insertion on the outside of the meter body 1.

[0059] When the communication module 2 is gradually inserted into the communication compartment 11 along the insertion direction and reaches the predetermined installation depth, the main structure of the communication module 2 will mechanically trigger or positionally engage the blocking mechanism 4, causing the blocking mechanism 4 to move from the blocking position to the open position. In the open position, the blocking mechanism 4 moves away from the upper opening area of ​​the battery compartment 12, so that the upper opening of the battery compartment 12 is in a state where the battery module 3 can be inserted.

[0060] Through the above structural relationship, the installer can directly observe and prioritize the location of the communication compartment 11 during the initial operation phase, while the battery compartment 12 is covered by the shielding mechanism 4. In the absence of installation experience or special training, the installer tends to first perform the plug-in operation of the communication module 2 in terms of vision and operation path. After the communication module 2 is plugged in, the shielding mechanism 4 changes position, and the upper opening of the battery compartment 12 is gradually exposed. During the continued operation, the installer naturally turns to the plug-in operation of the battery module 3.

[0061] This process creates a passive guiding relationship at the structural level, which helps reduce the probability of the battery module 3 being prematurely plugged in when the communication module 2 is not installed. It also reduces the risk of damage to the battery module 3 structure caused by forcibly plugging it in. Furthermore, compared to existing technologies, in this application, because the battery compartment 12 is hidden during installation, the user will not notice it, and the situation where the user forcibly inserts the battery module 3 into the battery compartment 12, as seen in existing technologies, is less likely to occur. Compared to existing technologies, this application further reduces the risk of user error.

[0062] Furthermore, after the battery module 3 is inserted and enters the battery compartment 12, the sealing mechanism 5 performs a corresponding action. The sealing mechanism 5 is also a structure that can be movably set inside the meter body 1. There is a linkage between the sealing mechanism 5 and the insertion state of the battery module 3. When the battery module 3 is inserted into the battery compartment 12, a part of the structure of the sealing mechanism 5 is displaced towards the communication module 2 and partially embedded in one of the lifting slots 21. After the sealing mechanism 5 is embedded in the lifting slot 21, it occupies the space of the lifting slot 21 that was originally used for finger force, so that the lifting slot 21 is in a state that cannot be directly used for lifting in terms of physical structure. Because the two lifting slots 21 of the communication module 2 are symmetrically arranged, after one of the lifting slots 21 is occupied by the sealing mechanism 5, the communication module 2 lacks symmetrical force conditions during disassembly. It is difficult for the installer to pull the communication module 2 out of the communication compartment 11 by lifting from one side. At the same time, the sealing mechanism 5 does not rigidly lock the lifting slot 21, but maintains it based on the plugged state of the battery module 3. When the battery module 3 is taken out from the battery compartment 12, the sealing mechanism 5 automatically exits from the lifting slot 21 under the action of its own reset structure or position linkage relationship, and the lifting slot 21 is restored to a space state that can be used for lifting.

[0063] With the above structural configuration, the disassembly operation of the communication module 2 is structurally related to the disassembly operation of the battery module 3. When the installer is performing maintenance or replacement operations, it is difficult to form an effective disassembly operation path for the communication module 2 while the battery module 3 is still in the battery compartment 12. This guides the installer to prioritize the disassembly of the battery module 3 before disassembling the communication module 2.

[0064] This structural relationship helps reduce the possibility of the communication module 2 being accidentally disassembled when it is powered on or in the event of a sudden power outage. It also reduces the risk of connector damage, electrical shock, or functional abnormalities caused by improper disassembly or assembly of the communication module 2.

[0065] It is worth noting that the shielding mechanism 4 can be understood as a movable component that forms a physical shielding effect in the opening area of ​​the battery compartment 12. This shielding effect is not permanent, but changes with the installation state of the communication module 2. The sealing mechanism 5 can be understood as a movable component that forms a local occupancy effect in the lifting groove 21 area. This occupancy effect changes with the installation state of the battery module 3. The lifting groove 21 can be understood as a force-bearing groove structure set on the upper surface of the communication module 2 for manual disassembly. Through the coordination of the shielding mechanism 4 and the sealing mechanism 5 in terms of spatial position and action sequence, a clear operational guidance logic relationship is formed between the communication module 2 and the battery module 3 during installation and disassembly. This logic relationship, without relying on additional markings, text prompts, or manual training, influences the operation path through the structure itself, which is beneficial to improving the reliability and safety of the three-phase smart energy meter during on-site installation and subsequent maintenance. At the same time, it is beneficial to further reduce the risk of damage to the battery module 3 structure or abnormal operation of the communication module 2 due to misoperation.

[0066] In some implementations, combined with Figure 1 , Figure 4 and Figure 5 The shielding mechanism 4 includes a covering component 41 and an elastic abutment component 42 that are connected to each other. A sliding cavity 13 is formed inside the meter body 1. The sliding cavity 13 is connected to the communication compartment 11 and the battery compartment 12 in space. The covering component 41 and the elastic abutment component 42 are located inside the sliding cavity 13 and have sliding ability along the extension direction of the sliding cavity 13.

[0067] The cover assembly 41 is located on the side near the upper opening of the battery compartment 12, and the elastic abutment assembly 42 is located on the side of the cover assembly 41 away from the battery compartment 12. The elastic abutment assembly 42 can be understood as a structural unit with elastic deformation capability and capable of applying a continuous thrust to the cover assembly 41, for example, formed by a spring, a sheet, or a component with elastic recovery characteristics.

[0068] Specifically, in the initial state where the communication module 2 is not installed in the communication compartment 11 and the battery module 3 is not installed in the battery compartment 12, the elastic abutment component 42 is in a naturally extended state. Under the action of its own elastic restoring force, the elastic abutment component 42 forms a thrust on the covering component 41 toward the battery compartment 12. Under the action of this thrust, the covering component 41 slides out from inside the sliding cavity 13 along the sliding cavity 13. The outer dimensions of the covering component 41 are adapted to the upper opening area of ​​the battery compartment 12, thereby covering the upper opening of the battery compartment 12 in space, so that the battery compartment 12 appears to be blocked on the outside of the meter body 1. This blocking state reduces the possibility of the battery compartment 12 being directly identified and plugged in from both a visual and operational perspective.

[0069] As the communication module 2 is gradually inserted into the communication compartment 11 along the preset insertion direction, the main body structure of the communication module 2 forms contact with the elastic abutment component 42 during the insertion stroke. During the continuous insertion process, the communication module 2 applies a squeezing force to the elastic abutment component 42 along the direction of the sliding cavity 13. Under the action of this squeezing force, the elastic abutment component 42 undergoes elastic compression and retracts within the sliding cavity 13. During the retraction of the elastic abutment component 42, the cover component 41 maintains a connection with the elastic abutment component 42 and moves synchronously into the sliding cavity 13. The cover component 41 gradually disengages from the upper opening area of ​​the battery compartment 12, and the upper opening of the battery compartment 12 gradually opens. When the communication module 2 reaches the predetermined installation position and is fully inserted into the communication compartment 11, the elastic abutment component 42 is in a compressed state, and the cover component 41 slides entirely into the sliding cavity 13. The upper opening of the battery compartment 12 is in a fully open state. In this state, the installer can intuitively identify the position of the battery compartment 12 and continue the installation. The insertion operation of battery module 3, through the structural cooperation between the covering component 41, the elastic abutment component 42 and the communication module 2, allows the shielding mechanism 4 to change position according to the installation state of the communication module 2 without relying on additional control structures. This creates a guiding relationship that changes with the installation steps at the structural level. This guiding relationship helps reduce the probability of battery module 3 being inserted prematurely when the communication module 2 is not installed, and also helps reduce the risk of damage to the battery module 3 structure due to misoperation. The sliding cavity 13 can be understood as a guide space that limits the movement trajectory of the covering component 41 and the elastic abutment component 42. The covering component 41 can be understood as a movable component that forms a shield or open shape for the upper opening of the battery compartment 12. The elastic abutment component 42 can be understood as a functional unit that provides elastic thrust and interacts with the communication module 2. The above structural configuration works together to create a clear installation sequence prompt effect from a structural logic perspective.

[0070] For example, an insulating rubber layer is provided on the inner wall of the communication compartment 11. The insulating rubber layer can effectively insulate the communication module 2, and can also generate a squeezing force with the side wall of the communication module 2 during the process of the communication module 2 being inserted into the communication compartment 11. This allows the squeezing force between the communication module 2 and the insulating rubber layer to effectively counteract the rebound force of the elastic abutment component 42, so that the communication module 2 can be stably placed in the communication compartment 11.

[0071] In some implementations, such as Figure 5 , Figure 6 and Figure 7As shown, the covering component 41 includes multiple cylindrical rods 411 and a covering film 412. The multiple cylindrical rods 411 are arranged sequentially along the length direction of the covering component 41. Adjacent cylindrical rods 411 maintain a close fit that allows for relative displacement. The covering film 412 covers the periphery of the multiple cylindrical rods 411 and forms an overall constraint on the multiple cylindrical rods 411, thereby forming a covering with a certain degree of flexibility and overall shielding capability.

[0072] For example, the battery compartment 12 includes an upper slot 121 located on the outside of the meter body 1 and a battery slot 122 disposed on the inner bottom wall of the upper slot 121. The upper slot 121 is used as an insertion channel for the battery module 3, and the battery slot 122 is used to limit and support the battery module 3. The cross-sectional shape of the upper slot 121 is set to square. Side slots 14 are formed on the two opposite inner walls of the upper slot 121 near the opening. The side slots 14 extend along the width direction of the upper slot 121 and communicate with the sliding cavity 13. The length of the cylindrical rod 411 is greater than the opening width of the upper slot 121. The two ends of the multiple cylindrical rods 411 are slidably inserted into the corresponding side slots 14. Through the guiding constraint of the two ends of the cylindrical rods 411 by the side slots 14, the cover assembly 41 has the ability to move along the direction of the side slots 14 in the area of ​​the upper slot 121.

[0073] Furthermore, an end groove 15 is provided on the inner wall of the upper slot 121 away from the sliding cavity 13. The two ends of the end groove 15 are respectively connected to a side groove 14 in a vertical direction in space. When the communication module 2 is not installed in the communication compartment 11 and the battery module 3 is not installed in the battery compartment 12, the first end of the cover component 41 away from the elastic abutment component 42 moves along the direction of the side groove 14 and is embedded in the end groove 15 under the pushing action of the elastic abutment component 42. The second end of the cover component 41 close to the elastic abutment component 42 extends into the sliding cavity 13. Through the structure of the first end of the cover component 41 being embedded in the end groove 15 and the multiple cylindrical rods 411 laterally crossing the upper slot 121, the cover component 41 forms an overall cover of the upper slot 121 in space. The upper slot 121 appears to be a continuous obstruction in appearance, making it difficult for users to identify the actual insertion position of the battery compartment 12 when observing from the outside.

[0074] For example, in terms of the specific structure of the elastic abutment component 42, the elastic abutment component 42 includes a first spring 421 and an abutment block 422. The sliding cavity 13 is further subdivided into a transverse slide 131, an arc-shaped slide 132 and a vertical slide 133. The transverse slide 131 is used to accommodate the initial movement path of the second end of the covering component 41, the vertical slide 133 is used to accommodate the up and down movement path of the abutment block 422, and the arc-shaped slide 132 connects the transverse slide 131 and the vertical slide 133 and is used to guide the covering component 41 to undergo directional transition between slides in different directions.

[0075] Furthermore, the first end of the first spring 421 is connected to the bottom wall of the vertical slide 133, and the second end of the first spring 421 extends along the length of the vertical slide 133 toward the side of the arc slide 132. The abutment block 422 is connected to the second end of the first spring 421. After passing through the horizontal slide 131 and the arc slide 132, the second end of the cover assembly 41 forms a connection with the side of the abutment block 422 away from the first spring 421 in the vertical slide 133.

[0076] For example, a connecting channel 16 is also formed inside the meter body 1, which extends in the same direction as the vertical slide 133. The connecting channel 16 connects the vertical slide 133 and the communication compartment 11 in spatial position. A part of the structure of the abutment block 422 passes through the connecting channel 16 and extends into the communication compartment 11. When the first spring 421 is in its natural state, the first spring 421 forms an elastic thrust on the abutment block 422 toward the upper end of the vertical slide 133. Under the action of this thrust, the abutment block 422 is in the upper position of the vertical slide 133. The second end of the cover component 41 connected to the abutment block 422 is simultaneously inside the vertical slide 133, while the first end of the cover component 41 remains embedded in the end groove 15.

[0077] For example, the rebound force of the first spring 421 is greater than the weight of the cover assembly 41, so that the first spring 421 can drive the second end of the cover assembly 41 to move upward when it rebounds.

[0078] For example, in terms of structural refinement of the abutment block 422, the abutment block 422 includes a sliding portion 4221 and an extension portion 4222 connected to each other. The sliding portion 4221 is slidably inserted into the vertical slide rail 133 and partially extends into the communication compartment 11. The extension portion 4222 is located at the end of the sliding portion 4221 that extends into the communication compartment 11, and the width of the extension portion 4222 is greater than the width of the sliding portion 4221. It can be understood that because the width of the extension portion 4222 is greater than the width of the sliding portion 4221, the extension portion 4222 is limited by the inner wall of the communication compartment 11 and cannot enter the vertical slide rail 133. Therefore, only the extension portion 4222 can form direct contact with the communication module 2, and the contact area of ​​the extension portion 4222 is larger, making it easier for the communication module 2 to generate an effective abutment force.

[0079] For example, in terms of the structural configuration of the communication compartment 11, a receiving groove 17 is further formed on the bottom wall of the communication compartment 11. The receiving groove 17 is spatially connected to the vertical slide 133, the connecting channel 16 and the communication compartment 11, and the receiving groove 17 is located below the connecting channel 16. When the communication module 2 is inserted into the communication compartment 11 and abuts against the inner bottom wall of the communication compartment 11, the extension 4222 is embedded in the receiving groove 17 under the pushing action of the communication module 2.

[0080] It is understandable that when the communication module 2 is gradually inserted into the communication compartment 11 along the predetermined insertion direction, the lower end wall of the communication module 2 gradually contacts the extension 4222 during the insertion stroke. As the communication module 2 continues to be inserted, it exerts a downward thrust on the extension 4222. Under the action of this thrust, the extension 4222 drives the sliding part 4221 to move vertically within the vertical slide 133. The first spring 421 is compressed during this process. The vertical movement of the sliding part 4221 is synchronously transmitted to the second end of the covering component 41 through the connection relationship. The second end of the covering component 41 moves downward within the vertical slide 133. Since the covering component 41 is composed of multiple cylindrical rods 411 and a covering film 412, the adjacent cylindrical rods 411 have a certain relative displacement capability under the constraint of the covering film 412. The covering component 41 moves from the transverse slide 131 through the arc-shaped slide 132 and then into the vertical slide 132. During process 3, adaptive bending can occur, thus smoothly completing the directional transition along the arc-shaped slide 132. When the second end of the cover component 41 continues to move downward, the first end of the cover component 41 located in the upper slot 121 gradually detaches from the end slot 15 under the guidance of the side slot 14 and moves towards the sliding cavity 13 along the side slot 14. As the insertion depth of the communication module 2 increases, the cover component 41 as a whole is gradually retracted from the upper slot 121 area into the sliding cavity 13. When the communication module 2 abuts against the inner bottom wall of the communication compartment 11, the extension 4222 enters the receiving slot 17 under the continuous push of the communication module 2. The sliding part 4221 is located at the lower part of the vertical slide 133. The cover component 41 is completely located in the sliding cavity 13. The upper slot 121 is in an open state. In this state, the battery module 3 can be inserted along the upper slot 121 and enter the battery slot 122 to complete the installation.

[0081] Meanwhile, as the communication module 2 is removed from the communication compartment 11, the downward pressure of the communication module 2 on the extension 4222 disappears. The first spring 421 exerts an upward thrust on the abutment block 422 under its own elastic restoring force. The sliding part 4221 moves upward along the vertical slide 133 and drives the second end of the covering component 41 to move upward synchronously. Under the guidance of the arc slide 132 and the transverse slide 131, the covering component 41 gradually returns to its initial path. Under the thrust of the elastic abutment component 42, the first end of the covering component 41 is re-embedded into the end groove 15 along the side groove 14. The multiple cylindrical rods 411 cross the upper slot 121 again laterally and form a continuous shielding state under the constraint of the covering film 412.

[0082] It is worth noting that since the first end of the cover component 41 is embedded in the end slot 15 and located behind the inner wall structure of the upper slot 121, it is difficult to identify the mating relationship between the cover component 41 and the end slot 15 when viewed from the outside. What the user observes from the outside of the upper slot 121 is a continuous and complete cover appearance. This structural state creates a hiding effect on the battery compartment 12 at the visual level, which to a certain extent reduces the possibility that the user will actively identify the battery compartment 12 and perform non-standard plugging operations when the communication module 2 is not installed. At the same time, it helps to reduce the risk of damage to the battery module 3 structure due to misoperation.

[0083] Among them, the cylindrical rod 411 can be understood as a strip-shaped component used to form a shielding skeleton and provide cross-support, and the covering film 412 can be understood as a flexible covering material used to integrate multiple cylindrical rods 411 into a whole and provide a continuous shielding surface. The side groove 14, end groove 15, transverse slide 131, arc slide 132 and vertical slide 133 together constitute a spatial structure that limits and guides the movement trajectory of the covering component 41 and the elastic abutment component 42. The coordination of the above multi-level structure in space and action sequence enables the shielding mechanism 4 to change in linkage with the installation and disassembly state of the communication module 2, forming a clear installation guidance and anti-misoperation effect from the structural level.

[0084] In some implementations, such as Figure 1 , Figure 8 and Figure 10 As shown, the sealing mechanism 5 includes a sealing component 51 and a stop component 52 that cooperate with each other. Inside the meter body 1, a sliding cavity 18 and a moving cavity 19 are formed and are perpendicularly connected to each other. The sliding cavity 18 extends from near to far from the communication compartment 11, and the moving cavity 19 extends from near to far from the battery slot 122. The sealing component 51 is slidably disposed along the sliding cavity 18, and the stop component 52 is slidably disposed along the moving cavity 19. The sealing component 51 and the stop component 52 are connected by a structural contact relationship. The sliding cavity 18 is connected to the communication compartment 11 at one end, away from the moving cavity 19. When the communication module 2 is inserted into the communication compartment 11, the end opening of the sliding cavity 18 is directly opposite to one of the lifting slots 21 on the upper surface of the communication module 2. The moving cavity 19 is connected to the battery slot 122 at one end, away from the sliding cavity 18. Through this spatial arrangement, the stop component 52 can make direct contact with the insertion action of the battery module 3, and the sealing component 51 can form a spatial cooperation relationship with the lifting slot 21.

[0085] Furthermore, in the initial state where the battery module 3 is not inserted into the battery slot 122, the end of the stop component 52 away from the sealing component 51 extends into the battery slot 122, and the sealing component 51 is located inside the sliding cavity 18 and does not enter the lifting groove 21 area. At this time, both lifting grooves 21 of the communication module 2 are in a contactable state, so that the user has the structural conditions to form a double-sided force point when installing the communication module 2, which makes it convenient to install the communication module 2 normally into the communication compartment 11.

[0086] As the battery module 3 is inserted into the battery slot 122 along the predetermined insertion direction, the battery module 3 gradually enters the battery slot 122 and comes into contact with the stop component 52. Under the continuous insertion force of the battery module 3, the stop component 52 is displaced along the moving cavity 19. The displacement of the stop component 52 is transmitted to the sealing component 51 through the transmission cooperation relationship between the stop component 52 and the sealing component 51. Under this transmission, the sealing component 51 moves towards the communication compartment 11 along the sliding cavity 18. The sealing component 51 gradually approaches and enters the lifting groove 21, thereby occupying space in the lifting groove 21.

[0087] In some implementations, combined with Figure 9 , Figure 10 and Figure 11 Regarding the specific structure of the stop assembly 52, the stop assembly 52 includes a stop post 521, an end block 522, and a second spring 523. The stop post 521 is slidably inserted along the direction of the moving cavity 19. A side groove 191 parallel to the extension direction of the moving cavity 19 is formed on the side wall of the moving cavity 19. The end block 522 is slidably inserted inside the side groove 191 and is connected to the stop post 521. One end of the second spring 523 is connected to the end block 522, and the other end is connected to the inner end wall of the side groove 191. In its natural state, the second spring 523 exerts an elastic thrust on the end block 522 and the stop post 521 toward the battery slot 122. In this state, the first end of the stop post 521 is located inside the battery slot 122, and the second end of the stop post 521 forms a compression fit with the sealing assembly 51. Through the elastic action of the second spring 523, the stop post 521 remains inserted into the battery slot 122 when it is not compressed by external force.

[0088] In some implementations, combined with Figure 10 and Figure 11 Regarding the structural configuration of the sealing component 51, the sealing component 51 includes a sealing block 511, a pressing plate 512, and a third spring 513. The sealing block 511 is slidably inserted along the sliding cavity 18. The outer dimensions of the sealing block 511 match the inner contour of the lifting groove 21, so that it can effectively occupy the lifting groove 21 after entering it. The pressing plate 512 is located at the end of the sealing block 511 away from the lifting groove 21.

[0089] For example, the end of the extrusion plate 512 away from the sealing block 511 forms a first fitting slope 5121, and the end of the stop post 521 near the sealing assembly 51 forms a second fitting slope 5211. A sliding extrusion fitting relationship is formed between the first fitting slope 5121 and the second fitting slope 5211. One end of the third spring 513 is connected to the end wall of the sealing block 511 away from the lifting groove 21, and the other end is connected to the inner end wall of the sliding cavity 18 away from the lifting groove 21. The third spring 513 and the extrusion plate 512 are spatially misaligned.

[0090] For example, combined Figure 9 , Figure 10 and Figure 11 The battery module 3 includes a positioning post 31 and a battery body 32. The positioning post 31 is disposed on the side wall of the battery body 32. The battery slot 122 includes a positioning groove 1221 and an insertion groove 1222. The positioning post 31 is inserted into the positioning groove 1221, and the battery body 32 is inserted into the insertion groove 1222. The first end of the stop post 521 can extend into the positioning groove 1221. Further, the lower end of the positioning post 31 has a third fitting slope 311, and the first end of the stop post 521 has a fourth fitting slope 5212. The third fitting slope 311 and the fourth fitting slope 5212 slide and press together.

[0091] Through this structural arrangement, the third spring 513 can create an elastic return tendency for the sealing block 511 towards the interior of the sliding cavity 18. When the third spring 513 is in its natural state, the sealing block 511 remains inside the sliding cavity 18 and does not enter the lifting groove 21. During the insertion of the battery module 3 into the battery slot 122, the battery module 3 gradually enters the battery slot 122 and forms contact with the first end of the stop post 521. The positioning post 31 provided on the battery module 3 moves along the positioning groove 1221 during the insertion process. The lower end of the positioning post 31 forms a third fitting slope 311, and the first end of the stop post 521 forms a fourth fitting slope 5212. A sliding compression fit relationship is formed between the third fitting slope 311 and the fourth fitting slope 5212. As the battery module... As block 3 continues to be inserted, the third fitting slope 311 applies a component force along the direction of the moving cavity 19 to the fourth fitting slope 5212. Under the action of this component force, the stop post 521 moves towards the sliding cavity 18 along the direction of the moving cavity 19. The second spring 523 is compressed during this process. When the stop post 521 moves towards the sealing assembly 51, its second fitting slope 5211 simultaneously applies a pressing force to the first fitting slope 5121 on the extrusion plate 512. Since the first fitting slope 5121 and the second fitting slope 5211 have a slope fitting structure, the pressing force is converted into a component force along the direction of the sliding cavity 18. Under the action of this component force, the extrusion plate 512 drives the sealing block 511 to move towards the lifting groove 21 along the direction of the sliding cavity 18. The third spring 513 is stretched during this process.

[0092] When the battery module 3 is fully inserted into the battery slot 122 and reaches the predetermined installation position, the sealing block 511 enters the inside of the lifting groove 21 and forms a occupant state for the lifting groove 21. In this state, one of the lifting grooves 21 of the communication module 2 no longer has the space conditions for applying force with fingers. During the disassembly operation, the communication module 2 lacks the structural basis for forming a symmetrical force on both sides. In this state, it is difficult for the user to apply an effective lifting force to the communication module 2.

[0093] Similarly, as the battery module 3 is removed from the battery slot 122, the positioning post 31 gradually disengages from the positioning groove 1221, and the pressure exerted by the third contacting slope 311 on the fourth contacting slope 5212 gradually weakens until it disappears. Under the action of the elastic restoring force, the second spring 523 pushes the stop post 521 to move along the moving cavity 19 toward the battery slot 122 side, and the first end of the stop post 521 re-enters the area of ​​the positioning groove 1221. The second contacting slope 5211 of the stop post 521... As the compression of the first contacting inclined surface 5121 of the extrusion plate 512 gradually disengages, the third spring 513, under the action of elastic restoring force, pushes the sealing block 511 to retract along the sliding cavity 18 into the sliding cavity 18. The sealing block 511 gradually exits the lifting groove 21 and completely disengages from the position of the lifting groove 21. At this time, the two lifting grooves 21 of the communication module 2 are in a contactable state again, and the user can form an effective force point between the two lifting grooves 21 to perform the disassembly operation of the communication module 2.

[0094] It is worth noting that, compared to existing technologies, the sealing mechanism 5 can achieve both sealing and opening of the lifting slot 21 without relying on the power provided by the battery module 3. In other words, compared to existing technologies, the sealing mechanism 5 in this application is less prone to failure, because some existing technologies rely on the power of the battery module 3, which can easily lead to malfunctions and potentially render the entire device unusable.

[0095] Based on this, through the coordination between the sealing component 51, the stop component 52, the battery module 3, and the communication module 2 in terms of spatial position and force path, the sealing mechanism 5 structurally links the disassembly conditions of the communication module 2 with the disassembly state of the battery module 3. When the battery module 3 is in the inserted state, the sealing component 51 occupies the lifting slot 21. When the battery module 3 is in the removed state, the sealing component 51 exits the lifting slot 21. This structural configuration guides the disassembly sequence through mechanical linkage without relying on electronic control or manual prompts. To a certain extent, it helps to reduce the probability of users attempting to disassemble the communication module 2 while the battery module 3 is not disassembled, and also helps to reduce the risk of the communication module 2 being subjected to abnormal force due to non-standard disassembly operations.

[0096] Among them, the sliding cavity 18 can be understood as a guide space for limiting the linear sliding trajectory of the blocking component 51, the moving cavity 19 can be understood as a guide space for limiting the linear sliding trajectory of the stopping component 52, and the conforming inclined surface can be understood as a structural interface for converting the squeezing force in one direction into the thrust in another direction. The coordination of the above structures in terms of space and mechanical relationship enables the blocking mechanism 5 to form a clear passive guiding effect during the installation and maintenance of the three-phase smart energy meter.

[0097] 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.

[0098] 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.

[0099] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0100] 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 three-phase smart energy meter, characterized in that, include: The meter body (1) has a communication compartment (11) and a battery compartment (12); The communication module (2) can be plugged into the communication compartment (11), and the upper surface of the communication module (2) is symmetrically provided with two lifting slots (21); The battery module (3) can be plugged into and installed in the battery compartment (12); A shielding mechanism (4) is movably disposed within the meter body (1). The shielding mechanism (4) is configured to completely shield the upper opening of the battery compartment (12) when the communication module (2) is not installed in the communication compartment (11), and to completely open the upper opening of the battery compartment (12) when the communication module (2) is inserted into the communication compartment (11). The shielding mechanism (4) includes a cover component (41) and an elastic abutment component (42) connected to each other. A sliding cavity (13) is provided in the meter body (1). The sliding cavity (13) is connected to both the communication compartment (11) and the battery compartment (12). The cover component (41) and the elastic abutment component (42) are slidably disposed within the sliding cavity (13). When the communication module (2) is not installed in the communication compartment (11) and the battery module (3) is not installed in the battery compartment (12), the covering component (41) automatically slides out from the sliding cavity (13) under the action of the elastic abutment component (42) and completely covers the upper opening of the battery compartment (12) to hide the battery compartment (12). When the communication module (2) is installed into the communication compartment (11), the cover component (41) is pushed into the sliding cavity (13) by the communication module (2) and opens the upper opening of the battery compartment (12) to expose the battery compartment (12). A sealing mechanism (5) is movably disposed within the meter body (1). The sealing mechanism (5) is configured to partially embed itself in one of the lifting slots (21) when the battery module (3) is inserted into the battery compartment (12) to seal the lifting slot (21), and to automatically withdraw from the lifting slot (21) when the battery module (3) is removed from the battery compartment (12) to release the sealing of the lifting slot (21). The sealing mechanism (5) includes a sealing component (51) and a stop component (52). The meter body (1) has a vertically connected sliding cavity (18) and a moving cavity (19). The sealing component (51) is slidably disposed in the sliding cavity (18), and the stop component (52) is slidably disposed in the moving cavity (19). The sealing component (51) and the stop component (52) are in a driving engagement. The sliding cavity (18) has an opening at one end away from the moving cavity (19) that is connected to the communication compartment (11), and the moving cavity (19) has an opening at one end away from the sliding cavity (18) that is connected to the battery slot (122). When the communication module (2) is inserted into the communication compartment (11), the end opening of the sliding cavity (18) is directly opposite to one of the lifting slots (21). When the battery module (3) is not inserted into the battery slot (122), the end of the stop component (52) away from the sealing component (51) extends into the battery slot (122), and the sealing component (51) is completely located in the sliding cavity (18); After the battery module (3) is inserted into the battery slot (122), the stop assembly (52) moves in the moving cavity (19) under the squeezing action of the battery module (3), so that the sealing assembly (51) is partially inserted into the lifting groove (21) under the pushing action of the stop assembly (52).

2. The three-phase smart energy meter according to claim 1, characterized in that, The covering assembly (41) includes cylindrical rods (411) and a covering film (412). Multiple cylindrical rods (411) are arranged sequentially. The covering film (412) covers the periphery of the multiple cylindrical rods (411). The battery compartment (12) includes an upper slot (121) and a battery slot (122). The battery slot (122) is formed on the inner bottom wall of the upper slot (121) and is used for inserting a battery module (3). The cross-sectional shape of the groove (121) is square. The length of the cylindrical rod (411) is greater than the opening width of the upper groove (121). Side grooves (14) are provided on the two opposite inner walls of the upper groove (121) near the opening. The side grooves (14) are in the same width direction as the upper groove (121). The side grooves (14) are connected to the sliding cavity (13). The two ends of the cylindrical rod (411) are slidably inserted into the side grooves (14). An end groove (15) is also provided on the inner wall of the upper slot (121) away from the sliding cavity (13). The two ends of the end groove (15) are vertically connected to a side groove (14). When the communication module (2) is not installed in the communication compartment (11) and the battery module (3) is not installed in the battery compartment (12), the first end of the covering component (41) away from the elastic abutment component (42) is embedded in the end groove (15) and the second end close to the elastic abutment component (42) extends into the sliding cavity (13) to completely cover the upper slot (121).

3. The three-phase smart energy meter according to claim 2, characterized in that, The elastic abutment component (42) includes a first spring (421) and an abutment block (422). The sliding cavity (13) includes a transverse slide (131), an arc-shaped slide (132), and a vertical slide (133). The arc-shaped slide (132) connects the transverse slide (131) and the vertical slide (133). The first end of the first spring (421) is connected to the bottom wall of the vertical slide (133), and the second end extends along the length of the vertical slide (133) toward the side closer to the arc-shaped slide (132). The abutment block (422) is connected to the second end of the first spring (421). The second end of the cover assembly (41) passes through the transverse slide (131) and the arc slide (132) and is connected to the side of the abutment block (422) away from the first spring (421) in the vertical slide (133). The meter body (1) is also provided with a connecting channel (16) that extends in the same direction as the vertical slide (133). The vertical slide (133) is connected to the communication compartment (11) through the connecting channel (16). The abutment block (422) extends into the communication compartment (11) after passing through the connecting channel (16). When the first spring (421) is in its natural state, the first end of the cover assembly (41) is embedded in the end groove (15) and the second end is located in the vertical slide (133).

4. The three-phase smart energy meter according to claim 3, characterized in that, The abutment block (422) includes a sliding part (4221) and an extension part (4222) connected to each other. The sliding part (4221) is slidably inserted into the vertical slide (133) and partially extends into the communication compartment (11). The extension part (4222) is located at one end of the sliding part (4221) that extends into the communication compartment (11), and the width of the extension part (4222) is greater than the width of the sliding part (4221).

5. The three-phase smart energy meter according to claim 4, characterized in that, The bottom wall of the communication compartment (11) is also provided with a receiving groove (17), which is connected to the vertical slide (133), the connecting channel (16) and the communication compartment (11), and the receiving groove (17) is located below the connecting channel (16); When the communication module (2) is inserted into the communication compartment (11) and abuts against the inner bottom wall of the communication compartment (11), the extension (4222) is embedded in the receiving groove (17) under the pushing action of the communication module (2).

6. The three-phase smart energy meter according to claim 1, characterized in that, The stop assembly (52) includes a stop post (521), an end block (522), and a second spring (523). The stop post (521) is slidably inserted into the moving cavity (19). A side groove (191) is provided parallel to the side wall of the moving cavity (19). The end block (522) is slidably inserted into the side groove (191) and connected to the stop post (521). One end of the second spring (523) is connected to the end block (522), and the other end is connected to the inner end wall of the side groove (191). When the second spring (523) is in its natural state, the first end of the stop post (521) is located in the battery slot (122), and the second end is pressed and engaged with the sealing assembly (51).

7. The three-phase smart energy meter according to claim 1, characterized in that, The sealing assembly (51) includes a sealing block (511), a pressing plate (512), and a third spring (513). The sealing block (511) is slidably inserted into the sliding cavity (18), and the shape and size of the sealing block (511) are adapted to the lifting groove (21). The pressing plate (512) is located at one end of the sealing block (511) away from the lifting groove (21), and the pressing plate (512) is provided with a first fitting inclined surface (5121). The second end of the stop post (521) is provided with a second fitting inclined surface (5211). The first fitting inclined surface (5121) and the second fitting inclined surface (5211) slide and press together. One end of the third spring (513) is connected to the end wall of the sealing block (511) away from the lifting groove (21), and the other end is connected to the inner end wall of the sliding cavity (18) away from the lifting groove (21). The third spring (513) and the extrusion plate (512) are misaligned. When the third spring (513) is in its natural state, the blocking block (511) is located in the sliding cavity (18); After the battery module (3) is inserted into the battery slot (122), the second fitting slope (5211) presses against the first fitting slope (5121) so that the sealing block (511) is embedded in the lifting groove (21).

8. The three-phase smart energy meter according to claim 7, characterized in that, The battery module (3) includes a positioning post (31) and a battery body (32). The positioning post (31) is located on the side wall of the battery body (32). The battery slot (122) includes a positioning groove (1221) and an insertion groove (1222). The positioning post (31) is inserted into the positioning groove (1221), and the battery body (32) is inserted into the insertion groove (1222). The first end of the stop post (521) can extend into the positioning groove (1221). The lower end of the positioning post (31) has a third fitting slope (311), and the first end of the stop post (521) has a fourth fitting slope (5212). The third fitting slope (311) and the fourth fitting slope (5212) are in sliding and pressing fit.

Images