A safe electricity monitoring unit

Abstract

The application belongs to the technical field of electrical safety monitoring equipment, and discloses a safe power monitoring unit, which comprises a lower shell, an upper shell and a wiring terminal, the lower shell, the upper shell and the wiring terminal are combined to form a monitoring unit body, and an electronic element is arranged in the lower shell; a connecting structure is arranged between the lower shell and the upper shell, and the connecting structure comprises a supporting assembly, a clamping assembly, a movable column, a guide block, a clamping block, a pushing structure, a return structure and a reset piece; through the ingenious magnetic attraction driving unlocking design, the dismounting mechanism is hidden in the shell, non-professionals cannot dismount from the outside because they do not understand the existence and principle of the magnetic attraction operation, so that the risk of electric shock, damage of internal precision components, tampering of circuit parameters and other safety problems caused by curiosity or misoperation are effectively avoided, and the sensitive information such as power consumption data and early warning parameters stored in the equipment is protected from being leaked or damaged.

Description

Technical Field

[0001] This invention belongs to the technical field of electrical safety monitoring equipment, and in particular relates to a safe electricity monitoring unit. Background Technology

[0002] In modern electrical safety management, electrical safety monitoring units (such as the BK-5 series) are important electrical safety protection devices and are widely used in industrial plants, commercial buildings, residential communities and other places. They mainly monitor parameters such as current, voltage, leakage current and temperature in the circuit in real time to provide early warning and protection against electrical fire hazards, abnormal power use and other situations, thereby ensuring the safety of the power environment.

[0003] In the existing structural design of safe electricity monitoring units, the outer shell is usually composed of an upper shell and a lower shell connected by snaps, screws or simple plug-in structures. The internal core components include circuit boards, sensors, and wiring terminals. However, this traditional structure has the following problems in practical applications. In terms of enclosure protection and professional maintenance management, traditional clip or screw connection methods lack effective mechanisms to prevent unprofessional disassembly. Unprofessional personnel may disassemble the enclosure at will due to curiosity or misoperation, which may not only cause damage to internal components and tampering with circuit parameters, but may also cause electric shock and other safety accidents due to contact with high-voltage components. At the same time, arbitrary disassembly may also lead to the leakage or destruction of sensitive information such as power consumption data and early warning parameters stored inside the equipment, affecting the accuracy and security of power consumption monitoring. Summary of the Invention

[0004] This invention addresses the lack of effective anti-disassembly mechanisms in existing technologies using traditional snap-fit ​​or screw connections. Unauthorized personnel may disassemble the casing out of curiosity or misoperation, which can easily damage internal components, tamper with circuit parameters, and even cause electric shocks due to contact with high-voltage components. Furthermore, unauthorized disassembly can lead to the leakage or destruction of sensitive information stored internally, such as power consumption data and warning parameters, affecting the accuracy and security of power monitoring. The invention proposes the following technical solution: A safe electricity monitoring unit includes: a lower shell, an upper shell, and wiring terminals. The lower shell, upper shell, and wiring terminals are combined to form the main body of the monitoring unit. Electronic components are installed inside the lower shell. A connecting structure is provided between the lower shell and the upper shell. The connecting structure includes a support component, a snap-fit ​​component, a movable column, a guide block, a snap-fit ​​block, a pushing structure, a return structure, and a reset component. The support component is located at the top of the inner wall of the lower shell and is used to cooperate with the snap-fit ​​component of the upper shell for fixation; the snap-fit ​​component is located at the bottom of the upper shell and is adapted to the support component. The snap-fit ​​assembly has a movable column that can move vertically inside, the guide block is distributed circumferentially along the movable column, and the outer side of the guide block is fitted with a snap-fit ​​block that is compatible with the support assembly. The movable column is provided with a pushing structure and a returning structure from top to bottom: the pushing structure is used to drive the locking block to move radially so as to lock the locking block with the support component; the returning structure is used to drive the locking block to return to the axis of the movable column so as to separate the locking block from the support component. A reset component is sleeved on the outside of the movable column. The two ends of the reset component abut against the snap-fit ​​assembly and the push structure, respectively, to provide a reset elastic force for the push structure. The upper shell has a guide groove inside, and a push plate is slidably connected in the guide groove. The push plate is equipped with a magnetic suction component, and the top of the movable column is equipped with an adsorption component that can magnetically engage with the magnetic suction component, so as to drive the movable column to move vertically by magnetic attraction.

[0005] Preferably, the support assembly includes four support columns, which are respectively fixedly installed at the four corners of the top of the inner wall of the lower shell. A through positioning hole is opened in the middle of the support column, and a circular groove is opened in the inner wall of the support column at the middle position of the positioning hole. The circular groove is adapted to the snap-fit ​​block.

[0006] Preferably, the snap-fit ​​assembly includes a snap-fit ​​post and a sleeve. A circular hole is provided at the bottom end of the upper shell corresponding to the top end of each support post. The snap-fit ​​post is fixedly installed inside the upper shell and located at the top end of the circular hole. The sleeve is fixedly installed at the bottom end of the snap-fit ​​post. The movable post is vertically movably connected to the inside of the sleeve.

[0007] Preferably, the pushing structure includes a pushing member, which is snapped onto the middle of the outer surface of the movable column. The shaded part of the cross-sectional view of the pushing member is triangular. An inclined groove is formed at the top of the snap-fit ​​block corresponding to the outer side of the pushing member. The triangular inclined surface of the pushing member is adapted to the inclined groove to drive the snap-fit ​​block to move radially. The return structure includes a return component, which is snapped onto the bottom of the outer surface of the movable column. The shaded part of the cross-sectional view of the return component is triangular. A triangular groove is formed at the bottom end of the snap-fit ​​block corresponding to the top end of the return component. The triangular inclined surface of the return component is adapted to the triangular groove to drive the snap-fit ​​block to reset towards the axis of the movable column.

[0008] Preferably, the reset element is a spring, which is sleeved on the outside of the movable column, and its two ends abut against the opposite surfaces of the pusher and the sleeve, respectively.

[0009] Preferably, the magnetic suction component is a magnet, the adsorption component is an iron block, the adsorption component is snapped onto the top of the movable column, and multiple push plates are slidably connected inside the guide groove. Each push plate has a magnetic suction component snapped onto it, and when the push plate slides, it can drive the magnetic suction component to move above the adsorption component.

[0010] The beneficial effects of this invention are as follows: (1) Through the ingenious magnetic drive unlocking design, the disassembly mechanism is hidden inside the shell. Non-professionals cannot disassemble it from the outside because they do not understand the existence and principle of magnetic operation. This effectively avoids safety issues such as electric shock risk, damage to internal precision components, and tampering with circuit parameters caused by curiosity or misoperation. At the same time, it also protects the sensitive information such as power consumption data and warning parameters stored inside the device from being leaked or destroyed, ensuring the accuracy and confidentiality of the monitoring data. (2) It can effectively resist vibration, impact and accidental pulling that the equipment may encounter during transportation, installation and long-term operation, prevent poor connection or functional failure due to loose shell, and improve the overall durability and reliability of the product. (3) No tools are required for the installation process. Simply align the upper and lower shells and press them together. During the pressing process, the internal inclined structure automatically completes the entire process of guiding, shrinking, positioning and locking, realizing "one-click installation". This greatly simplifies the installation steps for on-site staff, saves installation time, improves production efficiency, and reduces the skill requirements for operators. Attached Figure Description

[0011] Figure 1 The diagram shown is a structural schematic of a safe electricity monitoring unit in Embodiment 1; Figure 2 The diagram shown is a cross-sectional view of a safe electricity monitoring unit according to Embodiment 1; Figure 3 The example shown is from embodiment 1. Figure 2 Schematic diagram of the structure of region A in the middle; Figure 4 The diagram shown is a schematic of the installation structure of the return component in Embodiment 1.

[0012] In the diagram: 1. Lower shell; 2. Upper shell; 3. Terminal block; 4. Guide groove; 5. Support column; 6. Snap-fit ​​column; 7. Sleeve; 8. Movable column; 9. Reset component; 10. Guide block; 11. Snap-fit ​​block; 12. Adsorption component; 13. Push plate; 14. Magnetic component; 15. Return component; 16. Triangular groove; 17. Inclined groove; 18. Push component. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0014] Example 1 This invention provides a safe electricity monitoring unit, such as... Figures 1 to 4 As shown, it includes: a lower shell 1, an upper shell 2 and a wiring terminal 3. The lower shell 1, the upper shell 2 and the wiring terminal 3 are combined to form the main body of the monitoring unit. Electronic components are installed inside the lower shell 1. A connecting structure is provided between the lower shell 1 and the upper shell 2. The connecting structure includes a support component, a snap-fit ​​component, a movable column 8, a guide block 10, a snap-fit ​​block 11, a pushing structure, a return structure, and a reset component 9. The support component is located at the top of the inner wall of the lower shell 1 and is used to cooperate with the snap-fit ​​component of the upper shell 2 to achieve fixation; the snap-fit ​​component is located at the bottom of the upper shell 2 and is adapted to the support component. The snap-fit ​​assembly has a movable column 8 that can move vertically inside, and guide blocks 10 are distributed circumferentially along the bottom end of the movable column 8 and snap-fitted with it. A snap-fit ​​block 11 adapted to the support assembly is sleeved on the outside of the guide block 10. The movable column 8 is provided with a pushing structure and a returning structure from top to bottom: the pushing structure is used to drive the locking block 11 to move radially so as to lock the locking block 11 with the support component; the returning structure is used to drive the locking block 11 to return to the axis of the movable column 8 so as to separate the locking block 11 from the support component. A reset component 9 is sleeved on the outside of the movable column 8. The two ends of the reset component 9 abut against the snap-fit ​​assembly and the push structure, respectively, to provide a reset spring force for the push structure. The upper shell 2 has guide grooves 4 symmetrically opened at both ends. A push plate 13 is slidably connected in the guide groove 4. A magnetic suction component 14 is provided on the push plate 13. The top of the movable column 8 is provided with an adsorption component 12 that can magnetically cooperate with the magnetic suction component 14, which is used to drive the movable column 8 to move vertically by magnetic attraction.

[0015] In existing technologies, traditional snap-fit ​​or screw connections lack effective mechanisms to prevent unauthorized disassembly. Unauthorized personnel may disassemble the casing out of curiosity or misoperation, which can easily damage internal components, tamper with circuit parameters, and cause electric shock or other safety accidents due to contact with high-voltage components. At the same time, unauthorized disassembly may also lead to the leakage or destruction of sensitive information such as power consumption data and warning parameters stored inside the equipment, affecting the accuracy and security of power consumption monitoring.

[0016] In this application, the magnetic suction component 14 is attracted by the suction component 12 and the moving column 8 is driven to rise by pushing the push plate 13, so that the return structure can push the snap block 11 to reset and separate from the support component. Non-professionals cannot disassemble it because they do not understand the operating principle, thus avoiding damage to internal components, tampering with circuit parameters and electric shock risks, while protecting the security of sensitive information such as power data. Furthermore, the support component is adapted to the snap-fit ​​component, pushing the structure to drive the snap-fit ​​block 11 to move along the outside of the guide block 10 and snap-fit ​​with the support component. With the reset spring force provided by the reset component 9, the upper shell 1 and the lower shell 2 are firmly connected, reducing the loosening of the shell caused by vibration and external force.

[0017] During use, when installing the lower shell 1 and the upper shell 2, the snap-fit ​​assembly at the bottom of the upper shell 2 causes the snap-fit ​​block 11 to fit against the support assembly. The snap-fit ​​block 11 moves along the guide block 10 toward the axis of the movable column 8 due to the obstruction of the support assembly. At this time, the snap-fit ​​block 11 pushes the movable column 8 upward, thereby driving the reset member 9 to compress. When the operator pushes the upper shell 2, the maximum outer diameter of the combination of multiple snap-fit ​​blocks 11 is equal to the inner diameter of the support assembly. The movable column 8, the guide block 10, and the snap-fit ​​block 11 enter the interior of the support assembly. When the snap-fit ​​block 11 enters the predetermined position, the reset member 9 drives the movable column 8 downward, so that the snap-fit ​​block 11 enters the interior of the support assembly, forming a snap-fit ​​fixation. During disassembly, the push plate 13 moves the magnetic suction component 14 and moves it above the suction component 12. At this time, the suction component 12 drives the movable column 8 to rise, so that the return structure can push the snap block 11 to reset and separate from the support component.

[0018] To achieve the snap-fit ​​fixation between the snap-fit ​​block 11 and the support component in the above embodiments, the following solution is provided, such as... Figures 2 to 4 As shown, the support assembly includes four support columns 5, which are fixedly installed at the four corners of the top of the inner wall of the lower shell 1. A through positioning hole is opened in the middle of the support column 5, and a circular groove is opened in the inner wall of the support column 5 at the middle position of the positioning hole. The circular groove is adapted to the snap-fit ​​block 11. The pushing structure includes a pushing member 18, which is snapped onto the middle of the outer surface of the movable column 8. The shaded part of the cross-sectional view of the pushing member 18 is triangular. The top of the snap-fit ​​block 11 is provided with an inclined groove 17 corresponding to the outer side of the pushing member 18. The triangular inclined surface of the pushing member 18 is adapted to the inclined groove 17 to drive the snap-fit ​​block 11 to move radially. The snap-fit ​​assembly includes a snap-fit ​​post 6 and a sleeve 7. A round hole is provided at the bottom of the upper shell 2 corresponding to the top of each support post 5. The snap-fit ​​post 6 is fixedly installed inside the upper shell 2 and located at the top of the round hole. The sleeve 7 is fixedly installed at the bottom of the snap-fit ​​post 6. The movable post 8 is vertically movably connected inside the sleeve 7. The reset member 9 is a spring. The reset member 9 is sleeved on the outside of the movable post 8. The two ends of the reset member 9 abut against the opposite surfaces of the pusher 18 and the sleeve 7, respectively.

[0019] In use, the locking block 11 moves along the outside of the guide block 10 under the action of the positioning hole. At this time, the locking block 11 pushes the pusher 18 to rise under the action of the inclined groove 17. When the pusher 18 rises, it drives the movable column 8 to rise simultaneously. At this time, the reset member 9 is compressed under the blocking action of the sleeve 7. When the maximum outer diameter of the combination of multiple snap-fit ​​blocks 11 is equal to the inner diameter of the positioning hole, the snap-fit ​​block 11 is pushed into the positioning hole of the support column 5 by the pusher. Then it continues to move, so that the snap-fit ​​block 11 enters the circular groove position. At this time, the movable column 8 is driven to descend under the action of the reset member 9. When the movable column 8 descends, it pushes the snap-fit ​​block 11 into the circular groove under the action of the pusher 18 and the inclined groove 17, so as to achieve snap-fit ​​fixation.

[0020] To achieve the disassembly of the upper shell 2 and the lower shell 1 in the above embodiments, the following solution is provided, such as... Figures 2 to 4 As shown, the return structure includes a return component 15, which is snapped onto the bottom of the outer surface of the movable column 8. The shaded part of the cross-sectional view of the return component 15 is triangular. The bottom end of the snap-fit ​​block 11 is provided with a triangular groove 16 corresponding to the top end of the return component 15. The triangular inclined surface of the return component 15 is adapted to the triangular groove 16 to drive the snap-fit ​​block 11 to reset to the axis of the movable column 8. The magnetic suction component 14 is a magnet, and the adsorption component 12 is an iron block. The adsorption component 12 is snapped onto the top end of the movable column 8. Multiple push plates 13 are slidably connected inside the guide groove 4. Each push plate 13 is snapped onto the magnetic suction component 14, and when the push plate 13 slides, it can drive the magnetic suction component 14 to move above the adsorption component 12. In use, the operator pushes multiple push plates 13, which drive the magnetic suction component 14 to enter above the adsorption component 12. At this time, the magnetic suction component 14 adsorbs the adsorption component 12, causing the adsorption component 12 to drive the movable column 8 to rise inside the sleeve 7. When the movable column 8 rises, it drives the push component 18 and the locking block 11 to separate, and continues to rise, causing the return component 15 to enter the triangular groove 16. At this time, the triangular inclined surface of the return component 15 matches the triangular groove 16 to drive the locking block 11 to reset to the axis of the movable column 8, thereby separating the locking block 11 from the circular groove of the support column 5. Finally, the upper shell 2 can be removed.

[0021] Working principle: When the upper shell 2 is aligned with the lower shell 1 and fastened, the locking pin 6 at the bottom of the upper shell 2 drives the sleeve 7, the movable pin 8, and the locking block 11 to move downwards. When the locking block 11 contacts the top of the support pin 5, it is squeezed under pressure, causing it to move along the guide block 10 toward the axis of the movable pin 8. At this time, the locking block 11 slides on the triangular inclined surface of the pusher 18 through the inclined groove 17 at its top, thereby driving the pusher 18 and causing the movable pin 8 to compress the reset element 9 (spring) upwards. Simultaneously, the locking block 11 contracts radially (the maximum outer diameter of the combination of multiple locking blocks 11 is equal to...). When the inner diameter of the positioning hole of the support column 5 is reached, the snap-fit ​​block 11 enters the support column 5 due to the thrust. When the guide block 10 completely passes through the positioning hole of the support column 5 and reaches the inner circular groove position, the compressed reset piece 9 releases its elasticity, pushing the movable column 8 to reset downward. When the movable column 8 moves down, it drives the pusher 18 to descend. The triangular inclined surface of the pusher 18 interacts with the inclined groove 17 again, pushing the snap-fit ​​block 11 radially outward. Finally, the guide block 10 is firmly snapped into the circular groove of the support column 5, realizing the tight locking of the upper shell 2 and the lower shell 1. This process does not require tools, and it can be locked with a single press. The connection is firm and can effectively resist vibration and external force. When disassembly is required, a professional uses tools or fingers to slide the push plate 13 inside the upper shell 2. The push plate 13 moves the magnetic suction component 14 (magnet) above the suction component 12 (iron block). The magnetic suction component 14 generates a strong magnetic attraction force, attracting the suction component 12 and driving the entire movable column 8 to overcome the elastic force of the reset component 9 and move upward. When the movable column 8 rises, firstly, the push component 18 disengages from the inclined groove 17, releasing the outward pushing force on the locking block 11. Subsequently, the return component 15 at the bottom of the movable column 8 rises and embeds into the triangular groove 16 at the bottom of the guide block 10. Through the inclined plane action, the return component 15 forces the locking block 11 to retract radially towards the axis of the movable column 8, thereby driving the guide block 10 to disengage from the circular groove of the support column 5. At this time, the upper shell 2 and the lower shell 1 can be easily separated. Since non-professionals do not understand the internal magnetic unlocking mechanism, they cannot disassemble directly from the outside, thus effectively preventing accidental and malicious disassembly and protecting the safety of internal components and the confidentiality of data. The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. A safe electricity monitoring unit, characterized in that, include: The lower shell (1), the upper shell (2) and the wiring terminal (3) are combined to form the main body of the monitoring unit. Electronic components are provided inside the lower shell (1). A connection structure is provided between the lower shell (1) and the upper shell (2). The connection structure includes a support component, a snap-fit ​​component, a movable column (8), a guide block (10), a snap-fit ​​block (11), a push structure, a return structure, and a reset component (9). The support component is located at the top of the inner wall of the lower shell (1) and is used to cooperate with the snap-fit ​​component of the upper shell (2) to achieve fixation; the snap-fit ​​component is located at the bottom of the upper shell (2) and is adapted to the support component; The snap-fit ​​assembly is provided with a movable column (8) that can move vertically, and the guide block (10) is distributed around the movable column (8). The guide block (10) is fitted with a snap-fit ​​block (11) that is compatible with the support assembly on the outside of the guide block (10). The movable column (8) is provided with a pushing structure and a returning structure from top to bottom: the pushing structure is used to drive the snap-fit ​​block (11) to move radially so as to snap the snap-fit ​​block (11) with the support component; the returning structure is used to drive the snap-fit ​​block (11) to return to the axis of the movable column (8) so as to separate the snap-fit ​​block (11) from the support component. The movable column (8) is fitted with a reset member (9) on its outer side. The two ends of the reset member (9) abut against the snap-fit ​​assembly and the push structure, respectively, to provide a reset elastic force for the push structure. The upper shell (2) is provided with a guide groove (4) inside, and a push plate (13) is slidably connected in the guide groove (4). A magnetic suction element (14) is provided on the push plate (13). The top of the movable column (8) is provided with an adsorption element (12) that can magnetically cooperate with the magnetic suction element (14) for driving the movable column (8) to move vertically by magnetic attraction.

2. The safe electricity monitoring unit according to claim 1, characterized in that, The support assembly includes four support columns (5), which are fixedly installed at the four corners of the top of the inner wall of the lower shell (1). A through positioning hole is provided in the middle of the support column (5), and a circular groove is provided in the inner wall of the support column (5) at the middle position of the positioning hole. The circular groove is adapted to the snap-fit ​​block (11).

3. The safe electricity monitoring unit according to claim 1, characterized in that, The snap-fit ​​assembly includes a snap-fit ​​post (6) and a sleeve (7). The bottom end of the upper shell (2) is provided with a round hole corresponding to the top end of each support post (5). The snap-fit ​​post (6) is fixedly installed inside the upper shell (2) and located at the top end of the round hole. The sleeve (7) is fixedly installed at the bottom end of the snap-fit ​​post (6). The movable post (8) is vertically movably connected to the inside of the sleeve (7).

4. The safe electricity monitoring unit according to claim 1, characterized in that, The pushing structure includes a pushing member (18), which is snapped onto the middle of the outer surface of the movable column (8). The shaded part of the cross-sectional view of the pushing member (18) is triangular. The top of the snap-fit ​​block (11) is provided with an inclined groove (17) corresponding to the outer side of the pushing member (18). The triangular inclined surface of the pushing member (18) is adapted to the inclined groove (17) to drive the snap-fit ​​block (11) to move radially. The return structure includes a return component (15), which is snapped onto the bottom of the outer surface of the movable column (8). The shaded part of the cross-sectional view of the return component (15) is triangular. The bottom end of the snap-fit ​​block (11) is provided with a triangular groove (16) corresponding to the top end of the return component (15). The triangular inclined surface of the return component (15) and the triangular groove (16) are adapted to drive the snap-fit ​​block (11) to reset to the axis of the movable column (8).

5. A safe electricity monitoring unit according to claim 4, characterized in that, The reset component (9) is a spring. The reset component (9) is sleeved on the outside of the movable column (8). The two ends of the reset component (9) abut against the opposite surfaces of the pusher (18) and the sleeve (7), respectively.

6. The safe electricity monitoring unit according to claim 1, characterized in that, The magnetic suction component (14) is a magnet, and the adsorption component (12) is an iron block. The adsorption component (12) is snapped onto the top of the movable column (8). Multiple push plates (13) are slidably connected inside the guide groove (4). Each push plate (13) has a magnetic suction component (14) snapped onto it. When the push plate (13) slides, it can drive the magnetic suction component (14) to move above the adsorption component (12).

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