An electrical energy metering box with an insulation guard assembly

By using a metal casing and metal plates in the electricity metering box, equipped with a current sensor and heat-conducting plate, combined with a fan and ventilation holes, the problems of leakage detection and heat dissipation are solved, improving the safety and reliability of the electricity metering box.

CN224366101UActive Publication Date: 2026-06-16ZHAOQING HENGGANG ELECTRICAL TECH DEV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHAOQING HENGGANG ELECTRICAL TECH DEV
Filing Date
2024-11-28
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Existing electricity metering boxes cannot monitor leakage status in real time, and the heat accumulated in the wiring harness cannot be effectively dissipated, posing safety hazards and equipment failure risks.

Method used

The enclosure and metal plates are made of metal, equipped with current sensors and heat-conducting plates, combined with fans and ventilation holes to achieve leakage detection and heat dissipation. Alarm devices and insulation plates are also provided to improve safety.

Benefits of technology

It enables timely identification of leakage current and effective heat dissipation, reducing the risk of electrical accidents and equipment failures, and improving the safety and reliability of the electricity metering box.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224366101U_ABST
    Figure CN224366101U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of electric energy metering box with insulation protection assembly, including box and the door of hinged to the front side of box, box is made of metal material, the inner surface of box is equipped with first insulating plate, the inner surface of first insulating plate is equipped with metal plate, the outside of metal plate is equipped with current sensor, wire is inserted in the inside of current sensor, the both ends of wire are connected with metal plate metal plate The outside is also equipped with multiple wiring grooves of nonmetallic material, the top and both ends of wiring groove are all opened structure, and the inside of wiring groove bottom side is all embedded with heat conduction plate. Through the above structure, the leakage detection of metering box is realized, potential safety hazard can be identified in time, additional safety guarantee is provided for metering box, electrical accident caused by leakage is avoided, the safety and reliability of operating environment are ensured, the safety of equipment and personnel is protected.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of power metering box technology, and in particular to a power metering box with insulating protection components. Background Technology

[0002] Electricity metering boxes are crucial devices in power systems, used to measure and record electricity consumption, ensuring transparency and accuracy in electricity usage. During the operation of electricity metering boxes, the primary purpose of insulation protection is to prevent electrical equipment from coming into contact with live parts, thereby avoiding safety accidents such as short circuits and fires.

[0003] In the prior art, a search revealed a Chinese patent disclosing "An Electricity Metering Box with Insulating Protection Components," application number "202122248965.0." This patent mainly includes a cabinet with a cable inlet groove at the bottom and mounting grooves on both sides of the inner wall. Rubber sheets are fixedly connected to the inner walls of the mounting grooves. A cabinet door is hinged to one side, and a top cover is fixedly connected to the top. While this utility model effectively prevents electrical current from being conducted to the cabinet by using rubber sheets, thus avoiding electric shock to workers, and the electricity meter's connecting wires are stored in the inner walls of the secondary and main wire harness slots, this protective measure still has limitations. It cannot monitor in real time whether the electricity metering box is in a leakage state. If a leakage occurs, the rubber sheet will fail to issue an alarm, potentially leading to serious consequences such as equipment damage or personal injury. Furthermore, placing the wiring harness inside the rubber sheet and protecting it with a protective plate prevents effective heat dissipation due to the airtight nature of the rubber and protective plates, which could cause the wires to overheat, increasing the risk of equipment failure. Prolonged operation at high temperatures can also cause the rubber material to age, reducing its insulation performance. Therefore, this invention provides an energy metering box with insulating protective components to address the problems mentioned in the background section. Utility Model Content

[0004] The purpose of this utility model is to provide an energy metering box with an insulating protection component, which can detect leakage current in the metering box, identify potential safety hazards in a timely manner, provide additional safety protection for the metering box, avoid electrical accidents caused by leakage current, ensure the safety and reliability of the operating environment, and protect the safety of equipment and personnel.

[0005] To achieve the above objectives, an energy metering box with insulating protection components is provided, including a box body and a door hinged to the front side of the box body. The box body is made of metal, and a first insulating plate is installed on the inner surface of the box body. A metal plate is installed on the inner surface of the first insulating plate, and a current sensor is installed on the outer side of the metal plate. A wire is inserted inside the current sensor, and both ends of the wire are connected to the metal plate.

[0006] The outer side of the metal plate is also equipped with multiple non-metallic wiring channels. The top and both ends of the wiring channels are open, and heat-conducting plates are embedded in the bottom side of each wiring channel.

[0007] According to the aforementioned power metering box with insulating protective components, the box door is also made of metal, and a second insulating plate larger than the size of the metal plate is embedded on the side of the box door near the box body.

[0008] According to the aforementioned power metering box with insulating protective components, a fan is installed on the top side of the metal plate, and ventilation holes are provided inside the box door and the second insulating plate, and on the side near the bottom.

[0009] According to the aforementioned power metering box with insulating protection components, the wiring trough is provided with multiple mounting holes symmetrically spaced at equal intervals, and the top and bottom of the heat-conducting plate surface are both designed with a wave structure.

[0010] According to the aforementioned power metering box with insulating protective components, an alarm light is installed on the side of the box door away from the box body.

[0011] According to the aforementioned power metering box with insulating protective components, a dustproof cotton is installed on the side of the second insulating plate near the ventilation hole, and a mesh cover is installed on the top of the box and above the fan.

[0012] This utility model has the following beneficial effects:

[0013] 1. Compared with existing technologies, this energy metering box with insulating protection components has a multi-layered internal structure. The first insulating plate provides insulation protection for the box, enhancing the insulation effect. A metal plate is used for mounting the metering elements, and the metal material provides sufficient strength to ensure the stability of the metering element installation. If leakage occurs inside the metering box, the conductivity of the metal plate allows current to flow through the wires. At this time, the current sensor detects the current, thereby realizing leakage detection in the metering box. This enables timely identification of potential safety hazards, providing additional safety protection for the metering box, avoiding electrical accidents caused by leakage, ensuring the safety and reliability of the operating environment, and protecting the safety of equipment and personnel.

[0014] 2. Compared with the prior art, this energy metering box with insulation protection components allows the wire harness to accumulate inside the wiring trough for wiring. When the wire harness is routed, it comes into contact with the heat-conducting plate at the bottom of the wiring trough. The heat of the wire harness can be dissipated through the heat-conducting plate and the wave structure on its surface, which helps to reduce the temperature of the wire harness when it accumulates. This reduces the risk of insulation material aging or electrical failure caused by overheating, thereby helping to improve the overall safety and reliability of the energy metering box.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 This is a schematic diagram of the overall structure of an energy metering box with insulating protection components according to the present invention.

[0018] Figure 2 This is a schematic diagram of the first internal structure of an energy metering box with insulating protection components according to the present invention.

[0019] Figure 3 This is a schematic diagram of the second internal structure of an energy metering box with insulating protection components according to the present invention.

[0020] Figure 4 This utility model relates to an energy metering box with insulating protection components. Figure 3 Enlarged structural diagram at point A in the middle;

[0021] Figure 5 This is a schematic diagram of the wiring channel and heat-conducting plate structure of an energy metering box with insulating protection components according to this utility model.

[0022] Legend:

[0023] 1. Enclosure; 2. First insulating board; 3. Metal plate; 4. Wire; 5. Current sensor; 6. Enclosure door; 7. Wiring trough; 8. Ventilation hole; 9. Alarm light; 10. Heat conduction plate; 11. Fan; 12. Second insulating board; 13. Dustproof cotton; 14. Mounting hole; 15. Mesh cover. Detailed Implementation

[0024] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0025] Reference Figure 1-5 This utility model discloses an electricity metering box with insulating protection components, comprising a box body 1 and a door 6 hinged to the front of the box body 1. Both the box body 1 and the door 6 are made of metal, and the entire exterior of the metering box is made of metal to ensure the robustness and durability of its overall structure. A second insulating plate 12, larger than the size of the metal plate 3, is embedded on the side of the door 6 closest to the box body 1 to prevent contact between the metal plate 3 and the door 6. A first insulating plate 2 is installed on the inner surface of the box body 1, and a metal plate 3 is installed on the inner surface of the first insulating plate 2. A current sensor 5 is installed on the outer side of the metal plate 3, and a wire 4 is inserted inside the current sensor 5, with both ends of the wire 4 connected to the metal plate 3. An alarm light 9 is installed on the side of the door 6 away from the box body 1. The alarm light 9, in conjunction with the current sensor 5, emits an audible and visual alarm. This intuitive warning method can quickly attract the attention of personnel and allow for timely measures to address leakage problems.

[0026] The internal structure of the housing 1 is multi-layered. A first insulating plate 2 provides insulation protection for the housing 1, enhancing the insulation effect. A metal plate 3 is used for mounting the metering elements, and its metal material provides sufficient strength to ensure the stability of the metering element installation. If a leakage occurs inside the metering box, the conductivity of the metal plate 3 causes current to flow through the wires 4. At this time, the current sensor 5 detects the current, thus realizing leakage detection of the metering box. This allows for timely identification of potential safety hazards, providing additional safety protection for the metering box, preventing electrical accidents caused by leakage, ensuring the safety and reliability of the operating environment, and protecting the safety of equipment and personnel.

[0027] To facilitate wiring and improve neatness, multiple non-metallic wiring channels 7 are installed on the outer side of the metal plate 3. The top and both ends of each wiring channel 7 are open to facilitate wiring entry, exit, and organization. Multiple mounting holes 14 are symmetrically spaced inside each wiring channel 7 for fixing and installing the channel. A heat-conducting plate 10 is embedded in the bottom of each wiring channel 7. The heat-conducting plate 10 can be made of aluminum, which is economical. The top and bottom surfaces of the heat-conducting plate 10 have a corrugated structure.

[0028] When the wire harness accumulates inside the wiring trough 7 for routing, it comes into contact with the heat-conducting plate 10 at the bottom of the wiring trough 7. The heat of the wire harness can be dissipated through the heat-conducting plate 10 and the wave structure on its surface, which helps to reduce the temperature of the wire harness when it accumulates. This reduces the risk of insulation material aging or electrical failure caused by overheating, thereby helping to improve the overall safety and reliability of the power metering box.

[0029] To improve the heat dissipation performance of the metering box, a fan 11 is installed on the top side of the metal plate 3, and a mesh cover 15 is installed on the top of the box 1 above the fan 11. Ventilation holes 8 are provided inside the box door 6 and on the side near the bottom of the second insulating plate 12 for ventilation. Dustproof cotton 13 is installed on the side of the second insulating plate 12 near the ventilation holes 8 to prevent dust from entering and maintain the cleanliness of the inside of the box 1.

[0030] Working Principle: The internal structure of the housing 1 is multi-layered. The first insulating plate 2 provides insulation protection for the housing 1, enhancing the insulation effect. The metal plate 3 is used for the installation of the metering element, and the metal material provides sufficient strength to ensure the stability of the metering element installation. If leakage occurs inside the metering box, the conductivity of the metal plate 3 causes current to flow through the wire 4. At this time, the current sensor 5 detects the current, thereby realizing leakage detection of the metering box. This allows for timely identification of potential safety hazards, providing additional safety protection for the metering box, avoiding electrical accidents caused by leakage, ensuring the safety and reliability of the operating environment, and protecting the safety of equipment and personnel.

[0031] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An energy metering box with insulating protective components, characterized in that, Includes a box body (1) and a door (6) hinged to the front of the box body (1). The box body (1) is made of metal. A first insulating plate (2) is installed on the inner surface of the box body (1). A metal plate (3) is installed on the inner surface of the first insulating plate (2). A current sensor (5) is installed on the outer side of the metal plate (3). A wire (4) is inserted inside the current sensor (5). Both ends of the wire (4) are connected to the metal plate (3). The metal plate (3) is also equipped with a number of non-metallic wiring grooves (7). The top and both ends of the wiring grooves (7) are open structures, and heat-conducting plates (10) are embedded in the bottom side of each wiring groove (7).

2. The power metering box with insulating protection components according to claim 1, characterized in that, The door (6) is also made of metal, and a second insulating plate (12) larger than the metal plate (3) is embedded on the side of the door (6) near the box body (1).

3. The power metering box with insulating protection components according to claim 2, characterized in that, A fan (11) is installed on the top side of the metal plate (3), and ventilation holes (8) are provided inside the box door (6) and the second insulating plate (12) on the side near the bottom.

4. An energy metering box with insulating protection components according to claim 3, characterized in that, The wiring groove (7) has multiple mounting holes (14) symmetrically spaced at equal intervals inside, and the top and bottom of the surface of the heat-conducting plate (10) are both designed with a wave structure.

5. An energy metering box with insulating protection components according to claim 4, characterized in that, An alarm light (9) is installed on the side of the door (6) away from the box body (1).

6. An energy metering box with insulating protection components according to claim 5, characterized in that, The second insulating board (12) is fitted with a dustproof cotton (13) on the side near the ventilation hole (8), and a mesh cover (15) is installed on the top of the box (1) above the fan (11).