Novel electric energy metering cabinet
Through modular design and component optimization, the problems of large size, inconvenient maintenance and poor stability of traditional power metering cabinets have been solved, realizing efficient monitoring and stable operation of power metering equipment, which is suitable for high-risk operating environments such as chemical and metallurgical industries.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI SMATA ELECTRIC COMPLETE SET CO LTD
- Filing Date
- 2025-02-26
- Publication Date
- 2026-04-24
AI Technical Summary
Traditional electricity metering cabinets are bulky, inconvenient to maintain, and have low levels of intelligence. They also have shortcomings in electromagnetic compatibility and heat dissipation performance, resulting in poor operational stability and a poor user experience.
It adopts a modular design, including components such as a placement board, main control unit, protection device, metering module, heat sink and cooling fan. It combines current transformers and voltage transformers for electrical signal sensing and calculation. It is equipped with a door, shielding eaves and stainless steel material to improve stability and protection. It is suitable for high-risk operation areas such as chemical and metallurgical industries.
It maximizes the utilization of hardware resources, simplifies the system debugging cycle, enhances the environmental adaptability and electrical safety performance of the equipment, and broadens the scope of application, making it particularly suitable for high-risk operation areas in industries such as chemical and metallurgy.
Smart Images

Figure CN224164536U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of electrical energy measurement and monitoring technology, and in particular to a novel electrical energy metering cabinet. Background Technology
[0002] With the rapid development of my country's economy and the accelerated pace of urbanization, the demand for electricity is increasing daily, making the stability and security of the power system a key focus of public concern. Traditional electricity metering methods can no longer meet the demands of modern power grids for accuracy, reliability, and intelligence. Therefore, developing more advanced electricity metering equipment has become a consensus and development trend within the industry.
[0003] Existing traditional electricity metering cabinets generally suffer from problems such as large size, inconvenient maintenance, and low level of intelligence, making them unsuitable for today's diverse and complex electricity usage environment. Furthermore, some electricity metering cabinets fail to adequately consider electromagnetic compatibility (EMC) and heat dissipation requirements in their design, resulting in poor long-term operational stability and a subpar user experience. Utility Model Content
[0004] To address the shortcomings of existing technologies, this application provides a novel electricity metering cabinet that overcomes these deficiencies. It aims to solve the problems commonly found in existing traditional electricity metering cabinets, such as large size, inconvenient maintenance, and low level of intelligence, which prevent them from effectively adapting to the diverse and complex electricity usage environments of today. Furthermore, some electricity metering cabinets fail to adequately consider electromagnetic compatibility (EMC) and heat dissipation requirements in their design, resulting in poor long-term operational stability and a subpar user experience.
[0005] To achieve the above objectives, this application provides the following technical solution: A novel electricity metering cabinet includes a metering cabinet, an internal placement plate, a partition above the placement plate, a main control unit mounted above the placement plate, a protection device above the partition, and a metering module at the bottom of the placement plate. The metering module includes a current transformer and a voltage transformer. The metering module, the protection device, and the main control unit are electrically connected. A mounting plate is provided on one side of the metering cabinet, and multiple communication interfaces are provided inside the mounting plate. Heat dissipation holes are provided on both sides of the inner wall of the metering cabinet. Two sets of heat dissipation racks are provided inside the metering cabinet, and cooling fans are installed inside both sets of heat dissipation racks.
[0006] By adopting the above technical solution and setting up a mounting plate, during use, the current transformer and voltage transformer first sense and convert the corresponding electrical signals, which are then pre-processed by the preamplifier circuit before being sent to calculate the actual electrical energy consumed. At the same time, the status changes of the entire circuit can be continuously monitored, and once an abnormality is detected, the corresponding action is triggered immediately to cut off the power supply to avoid dangerous accidents. In addition, the mounting plate allows users to access and control various parameter settings of the power metering cabinet through an external computer. The heat dissipation racks on both sides can directly dissipate heat from the various internal components of the metering cabinet. In this way, by adopting a modular design concept, the hardware resources are maximized, the system debugging cycle is shortened, subsequent operation and maintenance work is simplified, the environmental adaptability and electrical safety performance of the equipment are enhanced, and the scope of application is broadened, especially suitable for high-risk operation areas in industries such as chemical and metallurgy.
[0007] As a preferred technical solution of this application, the placement plate has a rotating groove main control unit inside, and a rotating rod is rotatably connected inside the rotating groove main control unit. One end of the rotating rod passes through one side of the metering cabinet and is equipped with a handle. Two sets of connecting plates are provided on the top of the placement plate. The bottom of both sets of connecting plates is threadedly connected to the rotating rod. Two sets of clamping plates are provided on the top of the connecting plates, and rubber pads are provided on the inner side of the clamping plates.
[0008] By adopting the above technical solution and setting up a rotating slot main control unit, the two sets of connecting plates can be brought closer together by rotating the handle during use. This allows the two sets of clamping plates to hold the various internal components, further improving the stability of each component inside the metering cabinet.
[0009] As a preferred technical solution of this application, the metering cabinet is provided with a door on the front, and a hinge is provided between the door and the metering cabinet.
[0010] By adopting the above technical solution and setting up a cabinet door, the interior of the metering cabinet can be protected, preventing foreign objects from entering the cabinet and affecting normal operation.
[0011] As a preferred technical solution of this application, a handle is provided on the front of the cabinet door.
[0012] By adopting the above technical solution and adding handles, it is more convenient for staff to open and close the cabinet door during use.
[0013] As a preferred technical solution of this application, the top of each set of heat dissipation holes is provided with a shielding awning, the metering cabinet is made of stainless steel, and the exterior of the metering cabinet is provided with an anti-oxidation coating.
[0014] By adopting the above technical solution and setting up a shielding eaves, multiple sets of heat dissipation holes can be protected to prevent external water or other debris from entering the metering cabinet. The stainless steel material and the surface anti-oxidation coating have good corrosion resistance properties and are suitable for long-term operation in various harsh environments.
[0015] As a preferred technical solution of this application, the interior of the box door is provided with an observation window, which is made of transparent glass.
[0016] By adopting the above technical solution and setting up an observation window, it is more convenient for staff to observe the inside of the metering cabinet.
[0017] As a preferred technical solution of this application, the bottom of the metering cabinet is provided with four sets of stabilizing blocks, which are located at the four corners of the bottom of the metering cabinet.
[0018] By adopting the above technical solution and setting up stabilizing blocks, better support and anti-slip effect can be achieved for the metering cabinet.
[0019] As a preferred technical solution of this application, two sets of fixing plates are provided on both sides of the metering cabinet, and a rotating shaft is rotatably connected inside each of the four sets of fixing plates, with a stabilizing pad provided at the bottom of the rotating shaft.
[0020] By adopting the above technical solution and setting a fixing plate, the stabilizing pad can be made to come into contact with the ground by rotating the rotating shaft during use, thereby achieving a further fixing effect on the metering cabinet and providing good support when facing uneven ground.
[0021] The beneficial effects of this application are:
[0022] By setting up a mounting plate, during operation, the current transformer and voltage transformer first sense and convert the corresponding electrical signals. These signals are then pre-processed by a preamplifier circuit before being sent to calculate the actual electrical energy consumed. Simultaneously, the entire circuit's status changes can be continuously monitored. If an anomaly is detected, corresponding actions are immediately triggered, cutting off the power supply to prevent dangerous accidents. Furthermore, the mounting plate allows users to access and control various parameter settings of the energy metering cabinet via an external computer. The heat dissipation racks on both sides directly cool the internal components of the metering cabinet. This modular design maximizes the utilization of hardware resources, shortens the system debugging cycle, simplifies subsequent maintenance, enhances the equipment's environmental adaptability and electrical safety performance, and broadens its application scope, making it particularly suitable for high-risk operating areas in industries such as chemical and metallurgy.
[0023] By setting up a rotating slot main control unit, the two sets of connecting plates can be brought closer together by rotating the handle during use. This allows the two sets of clamping plates to hold the various internal components, further improving the stability of each component inside the metering cabinet. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the overall structure of this application;
[0025] Figure 2 This is a schematic diagram of the overall internal structure of this application;
[0026] Figure 3 This is a schematic diagram of the front structure of this application;
[0027] Figure 4 This is a schematic diagram of the placement plate structure of this application.
[0028] In the diagram: 1. Metering cabinet; 101. Heat dissipation hole; 102. Shelter; 103. Stabilizing block; 2. Placement plate; 201. Rotating groove; 202. Rotating rod; 203. Handle; 204. Connecting plate; 205. Clamping plate; 206. Partition; 207. Rubber pad; 3. Protection device; 301. Main control unit; 4. Metering module; 401. Current transformer; 402. Voltage transformer; 5. Heat dissipation rack; 501. Cooling fan; 6. Mounting plate; 601. Communication interface; 7. Door; 701. Hinge; 702. Observation window; 703. Handle; 8. Fixing plate; 801. Rotating shaft; 802. Stabilizing pad. Detailed Implementation
[0029] 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 some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0030] Reference Figure 1-4A novel electricity metering cabinet includes a metering cabinet 1. Inside the metering cabinet 1 is a placement plate 2. Above the placement plate 2 is a partition 206. A main control unit 301 is mounted above the placement plate 2. A protection device 3 is mounted above the partition 206. At the bottom of the placement plate 2 is a metering module 4, which includes a current transformer 401 and a voltage transformer 402. The metering module 4, the protection device 3, and the main control unit 301 are electrically connected. A mounting plate 6 is located on one side of the metering cabinet 1. Multiple communication interfaces 601 are located inside the mounting plate 6. Heat dissipation holes 101 are provided on both sides of the inner wall of the metering cabinet 1. Two sets of heat dissipation racks 5 are located inside the metering cabinet 1, each containing a cooling fan 501. A door 7 is located on the front of the metering cabinet 1, and a hinge 701 connects the door 7 to the metering cabinet 1.
[0031] By setting up mounting plate 2, during use, current transformer 401 and voltage transformer 402 first sense and convert corresponding electrical signals, which are then pre-processed by the preamplifier circuit and sent to 301 for calculation to determine the actual electrical energy consumed. Simultaneously, 301 continuously monitors the status changes of the entire circuit, and immediately triggers corresponding actions upon detecting an abnormality, cutting off the power supply to prevent dangerous accidents. Furthermore, the mounting plate 6 allows users to access and control various parameter settings of the energy metering cabinet via an external computer. The heat dissipation racks 5 on both sides directly dissipate heat from the internal components of the metering cabinet 1. This modular design maximizes the utilization of hardware resources, shortens the system debugging cycle, simplifies subsequent maintenance, enhances the equipment's environmental adaptability and electrical safety performance, and broadens its application scope, making it particularly suitable for high-risk operating areas in industries such as chemical and metallurgy. The cabinet door 7 protects the interior of the metering cabinet 1, preventing foreign objects from entering and affecting normal operation.
[0032] Reference Figure 1The placement plate 2 has a rotating slot main control unit 201 inside, and a rotating rod 202 is rotatably connected inside the rotating slot main control unit 201. One end of the rotating rod 202 passes through one side of the metering cabinet 1 and is equipped with a handle 203. The top of the placement plate 2 is provided with two sets of connecting plates 204, and the bottom of the two sets of connecting plates 204 are threaded to the rotating rod 202. The top of the connecting plates 204 is provided with two sets of clamping plates 205, and the inner side of the clamping plates 205 is provided with rubber pads 207. The front of the cabinet door 7 is provided with a handle 703. The inside of the cabinet door 7 is provided with an observation window 7. 02. The observation window 702 is made of transparent glass. By setting the rotating slot main control unit 201, the two sets of connecting plates 204 can be brought closer together by rotating the handle 203 during use, so that the two sets of clamping plates 205 can clamp the various internal components, which can further improve the stability of each component inside the metering cabinet 1. By setting the handle 703, it is more convenient for the staff to open and close the cabinet door 7 during use. By setting the observation window 702, it is more convenient for the staff to observe the inside of the metering cabinet 1.
[0033] Reference Figure 1 Each of the multiple sets of heat dissipation holes 101 is equipped with a shielding eave 102 at its top. The metering cabinet 1 is made of stainless steel, and its exterior is coated with an anti-oxidation coating. The shielding eaves 102 protect the multiple sets of heat dissipation holes 101 from external water or other debris entering the cabinet. The stainless steel material and the anti-oxidation coating provide excellent corrosion resistance, making it suitable for long-term operation in various harsh environments. Four sets of stabilizing blocks 103 are located at the bottom of the metering cabinet 1. At the corners; by setting stabilizing blocks 103, better support and anti-slip effect can be achieved for the metering cabinet 1; two sets of fixing plates 8 are set on both sides of the metering cabinet 1, and the interior of the four sets of fixing plates 8 is rotatably connected to the rotating shaft 801, and the bottom of the rotating shaft 801 is set with a stabilizing pad 802; by setting the fixing plates 8, during use, the rotating shaft 801 can be rotated to make the stabilizing pad 802 abut against the ground, thereby achieving a further fixing effect for the metering cabinet 1, and providing good support when facing uneven ground.
[0034] Working principle: By setting up the mounting plate 2, during use, the current transformer 401 and voltage transformer 402 first sense and convert the corresponding electrical signals, which are then pre-processed by the preamplifier circuit and sent to 301 for calculation to obtain the actual electrical energy consumed. At the same time, 301 can continuously monitor the status changes of the entire circuit. Once an abnormality is detected, it will immediately trigger the corresponding action to cut off the power supply to avoid dangerous accidents. In addition, the mounting plate 6 allows users to access and control the various parameter settings of the power metering cabinet through an external computer. The heat dissipation racks 5 on both sides can directly dissipate heat from the various components inside the metering cabinet 1. In this way, by adopting a modular design concept, the hardware resources are maximized, the system debugging cycle is shortened, the subsequent operation and maintenance work is simplified, the environmental adaptability and electrical safety performance of the equipment are enhanced, and the scope of application is broadened. It is especially suitable for high-risk operation areas in industries such as chemical and metallurgy. By setting the rotating slot main control unit 201, during use, the two sets of connecting plates 204 can be brought closer to each other by rotating the handle 203, so that the two sets of clamping plates 205 can clamp the internal components, which can further improve the stability of the components inside the metering cabinet 1.
[0035] The cabinet door 7 protects the interior of the metering cabinet 1, preventing foreign objects from entering and affecting normal operation. The handle 703 makes it easier for staff to open and close the cabinet door 7 during use.
[0036] Meanwhile, by setting up the shielding eaves 102, multiple sets of heat dissipation holes 101 can be protected to prevent external water or other debris from entering the interior of the metering cabinet 1. The stainless steel material and the surface anti-oxidation coating have good corrosion resistance properties and are suitable for long-term operation in various harsh environments.
[0037] In addition, by setting up the observation window 702, it is more convenient for staff to observe the inside of the metering cabinet 1; by setting up the stabilizing block 103, it can provide better support and anti-slip effect for the metering cabinet 1; by setting up the fixing plate 8, during use, the rotating shaft 801 can be rotated to make the stabilizing pad 802 abut against the ground, thereby achieving a further fixing effect for the metering cabinet 1, and providing good support when facing uneven ground.
[0038] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A novel electricity metering cabinet, comprising a metering cabinet (1), characterized in that, The metering cabinet (1) is equipped with a placement plate (2) inside. A partition (206) is provided above the placement plate (2). A main control unit (301) is installed above the placement plate (2). A protection device (3) is provided above the partition (206). A metering module (4) is provided at the bottom of the placement plate (2). The metering module (4) includes a current transformer (401) and a voltage transformer (402). The metering module (4), the protection device (3) and the main control unit (301) are electrically connected. A mounting plate (6) is provided on one side of the metering cabinet (1). Multiple communication interfaces (601) are provided inside the mounting plate (6). Heat dissipation holes (101) are provided on both sides of the inner wall of the metering cabinet (1). Two heat dissipation racks (5) are provided inside the metering cabinet (1). A cooling fan (501) is provided inside each of the two heat dissipation racks (5).
2. The novel energy metering cabinet according to claim 1, characterized in that, The placement plate (2) has a rotating slot main control unit (201) inside. The rotating slot main control unit (201) is rotatably connected to a rotating rod (202). One end of the rotating rod (202) passes through one side of the metering cabinet (1) and is equipped with a handle (203). The top of the placement plate (2) is provided with two sets of connecting plates (204). The bottom of the two sets of connecting plates (204) is threaded to the rotating rod (202). The top of the connecting plates (204) is provided with two sets of clamping plates (205). The inner side of the clamping plates (205) is provided with rubber pads (207).
3. The novel energy metering cabinet according to claim 1, characterized in that, The metering cabinet (1) has a door (7) on its front, and a hinge (701) is provided between the door (7) and the metering cabinet (1).
4. A novel energy metering cabinet according to claim 3, characterized in that, The front of the box door (7) is provided with a handle (703).
5. A novel energy metering cabinet according to claim 1, characterized in that, Each of the multiple sets of heat dissipation holes (101) is provided with a shielding awning (102) on the top. The metering cabinet (1) is made of stainless steel and has an anti-oxidation coating on the outside.
6. A novel energy metering cabinet according to claim 3, characterized in that, The inside of the box door (7) is provided with an observation window (702), which is made of transparent glass.
7. A novel energy metering cabinet according to claim 1, characterized in that, The bottom of the metering cabinet (1) is provided with four sets of stabilizing blocks (103), which are located at the four corners of the bottom of the metering cabinet (1).
8. A novel energy metering cabinet according to claim 1, characterized in that, Two sets of fixing plates (8) are provided on both sides of the metering cabinet (1). The four sets of fixing plates (8) are rotatably connected to a rotating shaft (801). A stabilizing pad (802) is provided at the bottom of the rotating shaft (801).