Non-metallic metering box for electric energy based on tropical island environment

Abstract

The utility model discloses a non -metal table box of electric energy measurement based on tropical island environment relates to the arrangement technical field of electric power device, including table box casing, the hinge joint of table box casing has table box lid, is equipped with the observation window on table box lid, and the hinge joint of observation window has transparent window flap, and table box casing and table box lid are opaque reinforced type silicon copolymer PC material, and the surface of window flap is sprayed with transparent UV coating, the fixed frame is fixed to the inside of table box casing and the outer one end, and the measurement area opening is equipped with in the upper side of fixed frame, and the lower side of fixed frame is equipped with two current mutual inductance area openings and voltage mutual inductance area opening of left and right, and the incoming and outgoing line of table box casing all adopt the waterproof joint of anti -loosening, and the wiring terminal row, screw and hinge of table box casing inside all adopt 316L stainless steel, and the anti -aging of reinforced table box, ultraviolet rays -proof, corrosion -resistant and high and low temperature resistant ability.

Description

TECHNICAL FIELD

[0001] The utility model relates to the arrangement technical field of electric power device, concretely relates to the electric energy measurement nonmetallic meter box based on tropical island environment. BACKGROUND

[0002] After experiencing the "millennials" typhoon, the electric energy measurement equipment in southeast coastal areas and other places was thoroughly investigated. Through close communication with technical experts and on-site maintenance personnel, they obtained valuable opinions and suggestions, which is crucial to improve the adaptability and reliability of the equipment in the tropical island environment. Based on the research results, the electric power system further improved the design of the electric energy measurement nonmetallic meter box. These improvements aim to improve the wind resistance, corrosion resistance, heat dissipation and other performance of the equipment in severe weather conditions, to ensure its stable operation in the tropical island environment. The goal is to realize the large-scale promotion and application of these new devices, and to improve the level of measurement equipment in island power grids. Through the network pilot operation, the performance and reliability of these new devices can be further verified, providing strong support for subsequent large-scale promotion and application.

[0003] The electric energy measurement box currently used in China can recycle nonmetallic materials such as PC+ABS, which is mostly suitable for an average humidity of less than 75% and an average temperature of not more than +35℃ within 24 hours. PC+ABS is easily hydrolyzed at high temperatures and easily aged under ultraviolet light, which cannot meet the requirements of tropical island environment. The weather resistance (high temperature resistance, ultraviolet resistance) of the outdoor meter box shell in the tropical island environment is very high. After one year of operation of the old meter box (PC+ABS), the color change to yellow can be clearly seen with the naked eye, indicating weak ultraviolet resistance; and there is a large range of mold on the surface.

[0004] Tropical islands have a "three high" (high temperature, high humidity, high salt fog) environment and seasonal "three strong" (strong typhoon, heavy rain, strong thunderstorm) extreme weather all year round. It is easy to cause failure and damage of electric power measurement equipment. The existing low-voltage nonmetallic metering box has serious field operation failure problems in the "three high three strong" environment of the tropical island, which brings a severe test to the reliability of the power grid measurement device, and easily causes damage to the electric energy measurement equipment, which brings great safety hazards to the safe and stable operation of the power grid. Especially the islands are often affected by typhoons, and the electric power equipment in tropical island areas is severely damaged, and the failure occurs frequently, so it is urgent to improve the reliability of the measurement equipment. Against this background, the nonmetallic meter box has accelerated the construction and application of island power grids, and the market demand continues to grow; at the same time, cooperation with the tropical island countries along the "one belt and one road" will open up a broad international market, with huge potential demand. UTILITY MODEL CONTENTS

[0005] In order to solve the above problems, the utility model discloses a nonmetal table box of electric energy measurement based on tropical island environment, including table box shell, the hinge joint of table box cover has on table box shell, the observation window is seted up on table box cover, and the transparent window flap is hinged to the observation window, and the surface of window flap is sprayed with transparent UV coating, and table box shell and table box cover are opaque reinforced type silicon copolymer PC material, and the wire terminal row, screw and hinge in the inside of table box shell all adopt 316L stainless steel.

[0006] Further, the heat dissipation holes are formed in the left and right side walls of the table box shell, and the drainage groove is formed in the bottom of the table box shell, and the drainage pipe is installed in the drainage groove.

[0007] Further, the operating port is formed in the front side of the current mutual inductance area opening and the voltage mutual inductance area opening of the table box cover, and the operating cover is hinged to the operating port.

[0008] Further, the perforation for installation is formed in the table box shell, and the installation is carried out through the metal strap hanging rod mode.

[0009] Further, the hinge at the hinged joint of the table box cover and the table box shell adopts the internal hidden hinge, and the window flap and the table box cover are sealed by the sealing strip.

[0010] The utility model has the beneficial effects as follows: 1, adopt reinforced type silicon copolymer PC material as the manufacturing material of table box cover and base, significantly enhance the anti-aging, anti-ultraviolet, corrosion resistance and high and low temperature resistance of table box. Compared with the traditional PC+ABS material, can keep stable performance for a long time in the harsh environment of tropical island, will not appear color yellow, mildew etc. problem, effectively prolongs the service life of the metering table box, reduces the equipment replacement frequency caused by material aging, and reduces the maintenance cost.

[0011] 2, the table box shell adopts the opaque material except the transparent window, effectively reduces the temperature rise in the box caused by the direct sunlight. And through the design that the heat dissipation holes are formed in the left and right sides of the table box bottom shell and the drainage groove is formed in the bottom, the natural convection of air forms the "chimney effect", realizes the efficient heat dissipation function. Reduce the internal temperature of table box, protect the metering equipment such as meter, terminal and circuit breaker in the box from high temperature damage, ensure that the metering equipment normally operates in the high temperature environment, improve the measurement accuracy and equipment life, reduce the equipment failure and measurement error caused by high temperature.

[0012] 3, the inlet and outlet line adopts the anti-loosening waterproof joint, the transparent window flip cover and the outlet line switch door adopt the sealing strip sealing, the both sides of the meter box adopt the internal hidden type heat dissipation air vent design, so that the protection level reaches IP54. These designs effectively improve the waterproof and moisture-proof capacity of the meter box from multiple aspects, avoid the water and moisture from entering the box to cause short circuit, corrosion and other problems, and reduce the equipment failure risk; the internal wiring terminal row, screw and hinge adopt 316L stainless steel material, improve the corrosion resistance, can keep good performance in high salt mist environment for a long time, prevent poor contact or damage caused by component corrosion. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the external structure schematic view of the utility model; Figure 2 It is the internal structure schematic view of the meter box shell after the meter box cover of the utility model is opened.

[0014] The signs are explained as follows: 1, meter box shell; 101, perforation; 2, meter box cover; 3, window flip cover; 4, middle frame; 401, metering area opening; 402, current mutual inductance area opening; 403, voltage mutual inductance area opening; 5, drain pipe; 6, operation cover. DETAILED DESCRIPTION

[0015] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. The terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying the importance of the opposite.

[0016] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0017] The utility model will be further described below in conjunction with the drawings of the specification: The electric energy metering non-metallic meter box based on the tropical island environment, such as Figure 1 and Figure 2As shown, the device includes a meter housing 1, with a meter cover 2 hinged to the meter housing 1; an observation window is provided on the meter cover 2, and a transparent window flip cover 3 is hinged to the observation window; the meter housing 1 and the meter cover 2 are made of opaque reinforced silicon copolymer PC material, and the surface of the window flip cover 3 is coated with a transparent UV coating; a middle frame 4 is fixed to one end of the meter housing 1 near the outside, with a metering area opening 401 on the upper side of the middle frame 4, and two current inductance area openings 402 and a voltage inductance area opening 403 on the lower side of the middle frame 4; the incoming and outgoing wires inside the meter housing 1 are all made of anti-loosening and waterproof connectors, and the terminal blocks, screws and hinges inside the meter housing 1 are all made of 316L stainless steel.

[0018] The watch case housing 1 and cover 2 are made of reinforced silicon copolymer PC material, which resists ultraviolet radiation. Under the impact of ultraviolet photons, its chemical bonds are not easily broken, thus improving the watch case's anti-aging and UV protection capabilities. Simultaneously, this material has high resistance to acids, alkalis, salts, and other chemicals, effectively resisting high salt spray corrosion in tropical island environments and enhancing its corrosion resistance. Furthermore, the reinforced silicon copolymer PC material also possesses good high and low temperature resistance, maintaining stable mechanical strength and insulation properties at high temperatures without significant performance degradation due to temperature changes. The viewing window flip cover 3 uses a transparent UV coating (paint), possessing excellent optical properties (89% light transmittance), high impact strength, and improved resistance to aging and chemical corrosion.

[0019] The bottom casing adopts a 4-frame design to enhance the overall structural strength. Internal terminal blocks, screws, and hinges are made of 316L stainless steel to improve corrosion resistance. Both inlet and outlet cables feature anti-loosening and waterproof connectors to prevent a decrease in protection level at these points. The transparent flip-top window and outlet switch are sealed with a sealing strip. The sides of the meter box feature concealed ventilation openings, achieving an IP54 protection rating, significantly improving waterproof and moisture-proof capabilities while also providing excellent heat dissipation.

[0020] like Figure 1 and Figure 2 As shown, in this embodiment, the meter box cover 2 has an operation port on the front side of the current inductance area opening 402 and the voltage inductance area opening 403, and the operation port is hinged to the operation cover 6; the meter box housing 1 has a through hole 101 for installation, and is installed by means of metal cable ties and hanging rods. The meter box has a built-in through hole 101 and uses metal cable ties and hanging rods to enhance wind resistance.

[0021] like Figure 1 and Figure 2 As shown, in this embodiment, heat dissipation holes are provided on the left and right side walls of the meter box housing 1, and a drainage groove is provided at the bottom of the meter box housing 1, in which a drainage pipe 5 is installed; the hinge at the hinge of the meter box cover 2 and the meter box housing 1 is an internal concealed hinge, and the window flip cover 3 and the meter box cover 2 are sealed with a sealing strip.

[0022] The meter box shell 1 is made of opaque reinforced silicon copolymer PC material except the observation window flap 3. The opaque material can reflect and absorb most of the energy in the sunlight, reducing the temperature rise caused by direct sunlight. The heat dissipation holes on the left and right sides of the bottom shell and the drainage groove on the bottom form a high-efficiency heat dissipation system. Inside the meter box, hot air will naturally rise and be discharged outside through the heat dissipation holes; while the cold air outside will enter the box from the bottom drainage groove, forming air convection, i.e. the so-called "chimney effect". This air flow can continuously carry away the heat in the box, reducing the internal temperature of the meter box, thereby protecting the metering equipment such as meters, terminals and circuit breakers inside the box from high temperature damage.

[0023] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A non-metallic meter box for electricity metering based on a tropical island environment, comprising a meter box housing (1), and a meter box cover (2) hinged to the meter box housing (1); characterized in that: The meter box cover (2) is provided with an observation window, and a transparent window flip cover (3) is hinged to the observation window. The meter box housing (1) and the meter box cover (2) are made of opaque reinforced silicon copolymer PC material. The surface of the window flip cover (3) is sprayed with a transparent UV coating. A middle frame (4) is fixed to the outer end of the meter box housing (1). A metering area opening (401) is opened on the upper side of the middle frame (4). Two current inductance area openings (402) and a voltage inductance area opening (403) are opened on the lower side of the middle frame (4). The incoming and outgoing lines in the meter box housing (1) are all made of anti-loosening and waterproof connectors. The terminal blocks, screws and hinges inside the meter box housing (1) are all made of 316L stainless steel.

2. The non-metallic meter box for electricity metering based on a tropical island environment according to claim 1, characterized in that: The left and right side walls of the meter box housing (1) are provided with heat dissipation holes, and the bottom of the meter box housing (1) is provided with a drainage groove, in which a drainage pipe (5) is installed.

3. The non-metallic meter box for electricity metering based on a tropical island environment according to claim 1, characterized in that: The meter box cover (2) has an operation port on the front side of the current inductance area opening (402) and the voltage inductance area opening (403), and the operation port is hinged to the operation cover (6).

4. The non-metallic meter box for electricity metering based on a tropical island environment according to claim 1, characterized in that: The housing (1) of the watch box has a through hole (101) for installation, and is installed by means of metal cable tie rod.

5. The non-metallic meter box for electricity metering based on a tropical island environment according to claim 1, characterized in that: The hinge at the joint between the watch box cover (2) and the watch box housing (1) is an internal concealed hinge, and the window flip cover (3) and the watch box cover (2) are sealed with a sealing strip.

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