Anti-electric shock safe electric energy metering box

Abstract

The invention relates to the field of electric energy metering boxes, in particular to an anti-electric shock safe electric energy metering box which comprises a mounting part, two side mounting parts are arranged in the mounting part, outer detection parts are arranged in the two side mounting parts, dust isolation parts are arranged in the two side mounting parts, and outer detection plates are connected with the dust isolation parts through internal wiring assemblies. A maintainer does not need to stretch a hand or a detection tool into the box and only needs to insert an electricity testing tool into the detection socket, detection of parameters such as voltage and current can be indirectly achieved, meanwhile, the Z-shaped inner fixing frame enables a safe distance to be kept between the double-face mounting plate and the inner wall of the outer mounting box body, and the detection efficiency is improved. The external detection plate is isolated from the side mounting frame in cooperation with the internal mounting frame, so that the electric leakage conduction path is reduced, the risk that a maintainer makes contact with an electrified shell is reduced, and the problems that when the maintainer operates a meter pen to make contact with a target node, the limb of the maintainer is close to an adjacent electrified element, the limb mistakenly touches the adjacent electrified element, and an electric shock accident is caused are solved.

Description

Technical Field

[0001] This invention relates to the field of electricity metering boxes, specifically a safe electricity metering box to prevent electric shock. Background Technology

[0002] An electricity metering box is a specialized enclosure used to install and protect electricity metering equipment. It plays a crucial role in the power supply system, primarily measuring the electrical energy consumed by users and providing data to power companies for electricity billing and management. Existing metering boxes are mostly made of metal, which has strong conductivity. If internal electrical components leak, the current can easily be conducted to the box surface. Furthermore, existing metering boxes are often protected by conventional locks. With repeated opening and closing, the door's seal weakens, allowing the electricity metering equipment to be exposed through gaps. This exposes the equipment to rain and dust, accelerating aging and affecting performance. It also makes it vulnerable to malicious damage or theft, and the exposed live parts could cause accidental electric shocks. Therefore, a safer electricity metering box is needed to prevent electric shocks during use.

[0003] In dusty working environments, high concentrations of dust are suspended in the metering box installation space for extended periods. This type of dust generally possesses a certain degree of conductivity or hygroscopicity. During inspection or maintenance work, the prolonged inspection time at the box door allows external dust to easily penetrate the box through the opening and ventilation holes. This dust particles can become embedded in the contact surfaces of the bolts and wires at the terminals, causing the contact points to overheat. This high temperature can further damage the surrounding insulation materials, creating a vicious cycle of leakage. Furthermore, when maintenance personnel need to directly contact the wiring nodes to perform continuity testing or voltage measurement using tools such as voltage testers and multimeter probes, their hands, arms, and other limbs are in close proximity to adjacent live components when the probes touch the target node. This can easily lead to accidental contact with adjacent live components, directly causing an electric shock accident. Summary of the Invention

[0004] The purpose of this invention is to provide a safe electrical metering box to prevent electric shock, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a safety power metering box for preventing electric shock, comprising a mounting part, wherein the mounting part has two sets of side mounting parts inside, each side mounting part including a side mounting frame, the side mounting frame having a dustproof slot inside, and a detection slot inside, both sets of side mounting parts having an external inspection part inside, each external inspection part including an external inspection plate, the outer wall of the external inspection plate having an internal connection end, the external inspection plate having a detection port, both sets of side mounting parts having a dustproof part inside, each dustproof part including an internal partition, the internal partition having a fixed fan slot in the middle, a cooling fan fixedly connected inside the fixed fan slot, and an internal inspection head fixedly connected in the middle of the cooling fan.

[0006] Preferably, the mounting part includes an outer casing, with hinges on both the left and right outer walls of the outer casing, a lead wire through hole at the bottom of the outer casing, side mounting openings on both the left and right outer walls of the outer casing, and two inner fasteners fixed to the upper and lower sides of the inner wall of the outer casing, all four inner fasteners being designed as Z-shaped structures.

[0007] Preferably, the front side of the outer casing is connected to a closed cabinet door via a hinge, and the interior of the outer casing is provided with a double-sided mounting plate. The front and rear sides of the double-sided mounting plate are respectively provided with mounting holes, and the upper and lower sides of the double-sided mounting plate are respectively provided with two through-holes for fixing plates. The corresponding inner fixing frame is fixedly inserted into each of the four fixing holes.

[0008] Preferably, the side mounting bracket is fixedly inserted into the corresponding side mounting opening, the side mounting bracket has a locking groove inside, the dustproof mounting slot is connected to a heat dissipation hole, the dustproof mounting slot is connected to the internal space of the outer casing through the heat dissipation hole, and an inner extension hole is connected to the middle position of the dustproof mounting slot.

[0009] Preferably, both the front and rear sides of the testing slot are connected to wiring through holes. The testing slot is connected to the internal space of the outer casing through the corresponding wiring through holes. The side mounting frame has a flip-top groove inside. The flip-top groove is connected to the corresponding testing slot. A protective cover plate is rotatably connected inside the flip-top groove. The protective cover plate can be fixedly inserted into the corresponding testing slot.

[0010] Preferably, the outer inspection plate is fixed inside the inspection slot, the outer inspection plate is provided with a wiring assembly inside, the inner terminal is electrically connected to the wiring assembly inside the outer inspection plate, the inspection port is electrically connected to the wiring assembly inside the outer inspection plate, and the inner side of the outer inspection plate is provided with an inner mounting frame, which is fixed to the corresponding side mounting frame.

[0011] Preferably, four fixing blocks are fixedly connected to the outer wall of the inner frame, and each of the four fixing blocks has a threaded groove at its end. Four sets of wire clamps are fixedly connected to the outer wall of the inner frame. Each of the four fixing blocks is threadedly connected to a tightening torsion bar through the threaded groove. Each of the four tightening torsion bars has a handle. Two wire pressing rods are rotatably connected between the four tightening torsion bars.

[0012] Preferably, the inner partition is fixedly inserted into the corresponding dustproof slot, and the inner partition has two locking slots. The fixed fan slot is connected to the corresponding dustproof slot through a circular through hole.

[0013] Preferably, the internal inspection head is electrically connected to the cooling fan, the internal inspection head is fixedly inserted into the corresponding internal through hole, a dustproof cover is fixedly inserted inside the fixed fan slot, and the dustproof cover covers the corresponding cooling fan.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. The dustproof cover, combined with the dust filter, filters dust particles, ensuring clean airflow into the chamber. The cooling fan continuously delivers clean air into the chamber, maintaining a slight positive pressure inside the outer casing. This effectively prevents external dust from entering through weak points in the structure, such as gaps in the closed cabinet door or bottom wiring holes. Simultaneously, the electrical linkage between the internal inspection head and the cooling fan enables dynamic control of dust concentration. When the internal inspection head detects that the dust concentration inside the chamber reaches a preset threshold, it automatically increases the speed of the cooling fan, accelerating air circulation within the chamber. Dust is then expelled through the cooling holes in the dustproof compartment. The protective cover and the sealing groove of the inspection compartment are designed to fit snugly, and together with the locking structure inside the side mounting bracket, the inspection compartment can be completely sealed, preventing dust from entering the inspection area during non-maintenance periods. This further blocks the dust intrusion path and avoids dust accumulation on the terminals and surfaces of circuit components, significantly reducing the risk of leakage accidents caused by dust conductivity.

[0015] 2. The external test board, through its internal wiring components, leads the testing nodes of the core circuit components inside the enclosure to the testing ports. Maintenance personnel do not need to insert their hands or testing tools into the enclosure; they can simply insert a voltage tester, multimeter, or other tools into the testing ports to indirectly test parameters such as voltage and current. Simultaneously, the Z-shaped internal support frame maintains a safe distance between the double-sided mounting plate and the inner wall of the outer enclosure. This prevents accidental leakage from the enclosure shell from directly transmitting electricity to the circuit components on the double-sided mounting plate, forming a physical isolation barrier. This, combined with the internal support frame, isolates the external test board from the side support frame, further reducing the leakage conduction path and lowering the risk of maintenance personnel contacting live components. It also prevents accidental contact between the maintenance personnel's hands, arms, or other limbs and adjacent live components when operating the test leads to target nodes, thus avoiding potential electric shock accidents. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the three-dimensional assembly structure of the present invention; Figure 2 This is a schematic diagram of the three-dimensional assembly structure from below according to the present invention; Figure 3 This is an exploded structural diagram of the present invention; Figure 4 This is an exploded bottom view schematic diagram of the structure of the present invention; Figure 5 This is a partial cross-sectional view of the present invention; Figure 6 For the present invention Figure 5 A schematic diagram of the enlarged structure of part A is shown. Figure 7 For the present invention Figure 5 A schematic diagram of the enlarged structure of section B is shown. Figure 8 This is a schematic diagram of the mounting structure of the present invention; Figure 9 This is a schematic diagram of the side-mounted assembly structure of the present invention; Figure 10 This is a schematic diagram of the assembly structure of the external inspection unit of the present invention; Figure 11 This is a schematic diagram of the dustproof assembly structure of the present invention.

[0017] The attached diagram lists the components represented by each number as follows: 1. Installation section; 101. Outer casing; 102. Side opening; 103. Internal support frame; 104. Closed cabinet door; 105. Double-sided mounting plate; 106. Mounting plate insertion hole; 2. Side mounting section; 201. Side mounting frame; 202. Dustproof mounting groove; 203. Internal through hole; 204. Inspection mounting groove; 205. Cable routing through hole; 206. Flip-over connection groove; 207. Protective cover plate; 3. 1. External Inspection Section; 301. External Inspection Plate; 302. Internal Connection Terminal; 303. Inspection Port; 304. Internal Mounting Frame; 305. Fixing Block; 306. Wire Clip Frame; 307. Tightening Torsion Bar; 308. Wire Pressing Bar; 4. Dustproof Section; 401. Internal Partition; 402. Locking Slot; 403. Fan Mounting Slot; 404. Cooling Fan; 405. Internal Inspection Head; 406. Dustproof Cover. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example 1: Please refer to Figure 1 - Figure 11 An electric shock-proof safety energy metering box includes a mounting part 1. The mounting part 1 has two sets of side mounting parts 2 inside. The side mounting parts 2 include side mounting frames 201. The side mounting frames 201 have dustproof mounting slots 202 and detection mounting slots 204 inside. Both sets of side mounting parts 2 have external inspection parts 3 inside. The external inspection parts 3 include external inspection plates 301. The outer wall of the external inspection plates 301 has an internal connection end 302. The external inspection plates 301 have detection sockets 303. Both sets of side mounting parts 2 have dustproof parts 4 inside. The dustproof parts 4 include internal partitions 401. The middle position of the internal partitions 401 has a fixed fan slot 403. The internal fan slot 403 is fixedly connected to the cooling fan 404. The middle position of the cooling fan 404 is fixedly connected to an internal inspection head 405.

[0020] The mounting part 1 includes an outer casing 101. Hinges are provided on the left and right outer walls of the outer casing 101. A wire through hole is provided at the bottom of the outer casing 101. Side mounting openings 102 are provided on the left and right outer walls of the outer casing 101. Two inner brackets 103 are fixed to the upper and lower sides of the inner wall of the outer casing 101. All four inner brackets 103 are designed with a Z-shaped structure.

[0021] The front of the outer casing 101 is connected to a closed cabinet door 104 via a hinge. The interior of the outer casing 101 is provided with a double-sided mounting plate 105. The front and rear sides of the double-sided mounting plate 105 are provided with mounting holes, and the upper and lower sides of the double-sided mounting plate 105 are provided with two through-holes 106 for fixing plates. Corresponding inner fixing frames 103 are fixedly inserted into the four fixing holes 106.

[0022] The side mounting bracket 201 is fixedly inserted into the corresponding side mounting opening 102. The side mounting bracket 201 has a locking groove inside. The dustproof mounting slot 202 is connected to a heat dissipation hole. The dustproof mounting slot 202 is connected to the internal space of the outer casing 101 through the heat dissipation hole. The middle position of the dustproof mounting slot 202 is connected to an inner extension hole 203.

[0023] Both the front and rear sides of the testing slot 204 are connected to wiring through holes 205. The testing slot 204 is connected to the internal space of the outer casing 101 through the corresponding wiring through holes 205. The side mounting frame 201 has a flip-out slot 206 inside. The flip-out slot 206 is connected to the corresponding testing slot 204. A protective cover plate 207 is rotatably connected inside the flip-out slot 206. The protective cover plate 207 is fixedly locked on the corresponding testing slot 204. The protective cover plate 207 cooperates with the locking groove inside the side mounting frame 201.

[0024] In this embodiment, the outer casing 101 is first fixed to a wall or bracket in a dusty environment through the pre-set mounting holes at the bottom. Then, four inner brackets 103 are fixed to the upper and lower sides of the inner wall of the outer casing 101. Next, the four mounting holes 106 on the upper and lower sides of the double-sided mounting plate 105 are aligned with the inner brackets 103, pushed horizontally along the inner brackets 103, and locked with bolts. Subsequently, the core circuit components such as the energy meter and transformer are fixed. The closed cabinet door 104 is rotatably connected to the front of the outer casing 101 through a hinge. The two side mounting brackets 201 are inserted from the side mounting openings 102 on the left and right sides of the outer casing 101, respectively, through the positioning bosses on the outer wall of the side mounting brackets 201 and the side mounting openings. The slot of 102 achieves initial fixation, and then the side mounting bracket 201 is locked by the back bolts to ensure that the side mounting bracket 201 fits seamlessly with the cabinet, preventing dust from entering from the side mounting opening 102. The protective cover 207 is rotatably connected to the flip groove 206 of the side mounting bracket 201 by a rotating shaft, and is locked by the locking groove inside the side mounting bracket 201 and the locking cylinder on the cover. It cannot be opened when it is not unlocked, preventing dust from entering the detection slot 204. During maintenance, before opening the closed cabinet door 104, the protective cover 207 of the side mounting part 2 must be opened first, and the detection tool is inserted through the detection port 303 for preliminary detection. There is no need to put your hands into the cabinet, reducing the contact between dust and the components inside the cabinet when opening the cabinet.

[0025] Example 2: Please refer to Figures 1-11 The outer inspection plate 301 is fixed inside the inspection slot 204. The outer inspection plate 301 is provided with a wiring assembly. The inner terminal 302 is electrically connected to the wiring assembly inside the outer inspection plate 301. The inspection socket 303 is electrically connected to the wiring assembly inside the outer inspection plate 301. The inner side of the outer inspection plate 301 is provided with an inner mounting frame 304, which can be fixedly inserted into the corresponding side mounting frame 201.

[0026] Four fixing blocks 305 are fixedly connected to the outer wall of the inner frame 304. Each of the four fixing blocks 305 has a threaded groove at its end. Four sets of wire clamps 306 are fixedly connected to the outer wall of the inner frame 304. Each of the four fixing blocks 305 is threadedly connected to a tightening torsion bar 307 through the threaded groove. Each of the four tightening torsion bars 307 has a handle. Two wire clamping rods 308 are rotatably connected between the four tightening torsion bars 307.

[0027] In this embodiment, the outer inspection plate 301 is fixed to the inside of the inspection slot 204 of the side mounting bracket 201 with bolts, ensuring that there is no gap between the outer inspection plate 301 and the inner wall of the inspection slot 204; the inner mounting bracket 304 on the inner side of the outer inspection plate 301 needs to be fixedly connected to the inner wall of the side mounting bracket 201. The wiring assembly inside the outer inspection plate 301 is electrically connected to the wiring nodes of the circuit components on the double-sided mounting plate 105 through the wiring through holes 205 on the front and rear sides of the inspection slot 204. Excess cables are tucked into the cable clip 306 for organization; finally, the two wire clamping rods 308 are connected to the threaded groove of the fixing block 305 through the tightening torsion rod 307. The handle of the tightening torsion rod 307 is rotated to make the wire clamping rods 308 clamp the cables to prevent the cables from loosening and causing poor contact. After the wiring is completed, insulation is required. The wiring joints are wrapped with tape to prevent dust from adhering and causing short circuits. During maintenance, maintenance personnel do not need to directly touch the wiring nodes inside the box with pens or tools. They only need to insert the testing tool into the testing socket 303 and indirectly connect to the target node through the wiring components inside the outer testing board 301 to detect parameters such as voltage and current. This avoids the body from getting close to dense components. If leakage current is detected, the component can be directly processed, shortening the time for opening the door for maintenance. The inner bracket 103 keeps the double-sided mounting plate 105 at a safe distance from the box, preventing the box from accidentally becoming energized. This also prevents maintenance personnel from accidentally touching adjacent energized components when operating the test leads to contact the target node, thus avoiding the problem of electric shock accidents.

[0028] Example 3: Please refer to Figures 1-11 The inner partition 401 is fixedly inserted into the corresponding dustproof slot 202. Two locking slots 402 are provided on the inner partition 401. The fixed fan slot 403 is connected to the corresponding dustproof slot 202 through a circular through hole.

[0029] The internal inspection head 405 is electrically connected to the cooling fan 404. The internal inspection head 405 is fixedly inserted into the corresponding internal through hole 203. A dustproof cover plate 406 is fixedly inserted inside the fan slot 403, and the dustproof cover plate 406 covers the corresponding cooling fan 404. In this embodiment, the internal partition 401 is inserted from the top of the dust-proof slot 202 of the side-mounted frame 201. Positioning is achieved through the cooperation of the convex strips on both sides of the partition and the sliding slots of the dust-proof slot 202, ensuring seamless fitting between the partition and the dust-proof slot 202. The cooling fan 404 is fixed inside the fan fixing slot 403 by bolts, ensuring that the air outlet of the fan faces the heat dissipation through-hole of the dust-proof slot 202. The detection end of the internal inspection head 405 passes through the inner extension through-hole 203 and extends into the outer packing box 101. At the same time, the internal inspection head 405 is electrically connected to the cooling fan 404 through a wire to achieve linkage control. Finally, the dust-proof cover plate 406 is fixedly inserted outside the fan fixing slot 403 to cover the cooling fan 404, preventing external dust from invading through the air inlet of the fan. During daily use, after filtering the external air through the dust-proof cover plate 406, the cooling fan 404 conveys clean air flow into the box, keeping the box slightly positively pressured and blocking the invasion of dust through the gaps in the box body. When the internal inspection head 405 detects that the dust concentration in the box reaches the preset threshold, the rotation speed of the cooling fan 404 is automatically increased to accelerate the air circulation in the box, and the dust is discharged through the heat dissipation through-hole of the dust-proof slot 202. At the same time, the dust-proof cover plate 406 can intercept external dust, preventing the dust from invading the box again through the air inlet of the cooling fan 404, effectively avoiding the problem that external dust invades the box body through the cabinet opening and the heat dissipation through-hole position, causing dust particles to embed in the contact surface between the bolt and the wire of the terminal, resulting in the heating of the contact point, and further damaging the surrounding insulating materials by high temperature, forming a vicious cycle of electric leakage.

[0030] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0031] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A shockproof safety energy metering box, comprising a mounting part (1), characterized in that: The mounting part (1) is provided with two sets of side mounting parts (2). Each side mounting part (2) includes a side mounting frame (201). The side mounting frame (201) has a dustproof mounting groove (202) and a test mounting groove (204) inside. Both sets of side mounting parts (2) are provided with an external inspection part (3). Each external inspection part (3) includes an external inspection plate (301). The outer wall of the external inspection plate (301) is provided with an internal connection end. The head (302) is provided with a test port (303) on the outer inspection plate (301). Both sets of side mounting parts (2) are provided with a dustproof part (4). The dustproof part (4) includes an inner partition (401). A fan mounting groove (403) is opened in the middle of the inner partition (401). A cooling fan (404) is fixed inside the fan mounting groove (403). An inner inspection head (405) is fixed in the middle of the cooling fan (404).

2. The electric shock-proof safety energy metering box according to claim 1, characterized in that: The mounting part (1) includes an outer casing (101), with hinges on the left and right outer walls of the outer casing (101), a lead wire through hole at the bottom of the outer casing (101), a side mounting opening (102) on the left and right outer walls of the outer casing (101), and two inner brackets (103) fixed to the upper and lower sides of the inner wall of the outer casing (101), all four inner brackets (103) being Z-shaped.

3. The electric shock-proof safety energy metering box according to claim 2, characterized in that: The front of the outer casing (101) is connected to a closed cabinet door (104) via a hinge. The interior of the outer casing (101) is provided with a double-sided mounting plate (105). The front and rear sides of the double-sided mounting plate (105) are respectively provided with mounting holes. The upper and lower sides of the double-sided mounting plate (105) are respectively provided with two through-hole fixed plate insertion holes (106). The four fixed plate insertion holes (106) are all fixedly inserted with corresponding inner fixed frames (103).

4. The electric shock-proof safety energy metering box according to claim 2, characterized in that: The side mounting bracket (201) is fixedly inserted into the corresponding side mounting opening (102). The side mounting bracket (201) has a locking groove inside. The dustproof mounting slot (202) is connected to a heat dissipation through hole. The dustproof mounting slot (202) is connected to the internal space of the outer casing (101) through the heat dissipation through hole. The middle position of the dustproof mounting slot (202) is connected to an inner extension through hole (203).

5. The electric shock-proof safety energy metering box according to claim 2, characterized in that: The front and rear sides of the detection slot (204) are connected to wiring through holes (205). The detection slot (204) is connected to the internal space of the outer casing (101) through the corresponding wiring through holes (205). The side mounting bracket (201) has a flip-out slot (206) inside. The flip-out slot (206) is connected to the corresponding detection slot (204). The flip-out slot (206) is rotatably connected to a protective cover plate (207) inside. The protective cover plate (207) can be fixedly inserted into the corresponding detection slot (204).

6. The electric shock-proof safety energy metering box according to claim 1, characterized in that: The outer inspection plate (301) is fixed inside the inspection slot (204). The outer inspection plate (301) is provided with a wiring assembly inside. The inner terminal (302) is electrically connected to the wiring assembly inside the outer inspection plate (301). The inspection socket (303) is electrically connected to the wiring assembly inside the outer inspection plate (301). The inner side of the outer inspection plate (301) is provided with an inner frame (304). The inner frame (304) is fixed on the corresponding side frame (201).

7. The electric shock-proof safety energy metering box according to claim 6, characterized in that: Four fixing blocks (305) are fixedly connected to the outer wall of the inner frame (304). Each of the four fixing blocks (305) has a threaded groove at its end. Four sets of wire clamps (306) are fixedly connected to the outer wall of the inner frame (304). Each of the four fixing blocks (305) is threadedly connected to a tightening torsion bar (307) through the threaded groove. Each of the four tightening torsion bars (307) has a handle. Two wire clamping rods (308) are rotatably connected between the four tightening torsion bars (307).

8. The electric shock-proof safety energy metering box according to claim 4, characterized in that: The inner partition (401) is fixedly inserted into the corresponding dustproof slot (202). The inner partition (401) has two locking slots (402). The fixed fan slot (403) is connected to the corresponding dustproof slot (202) through a circular through hole.

9. A safety energy metering box against electric shock according to claim 4, characterized in that: The internal inspection head (405) is electrically connected to the cooling fan (404). The internal inspection head (405) is fixedly inserted in the corresponding internal through hole (203). A dustproof cover plate (406) is fixedly inserted inside the fixed fan slot (403), and the dustproof cover plate (406) covers the corresponding cooling fan (404).

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