Multifunctional electric energy metering device

Abstract

The invention belongs to the technical field of electric energy metering, and particularly relates to a multifunctional electric energy metering device. The electric energy metering device comprises a base and an electric energy metering box, and the electric energy metering box is installed on the base. Wherein the base is a U-shaped plate, and two limiting rods are symmetrically and rotationally mounted on the base; the two limiting rods are respectively clamped on two sides of the electric energy metering box; the bottom of the electric energy metering box is also provided with a cooling assembly. According to the invention, through mechanical innovation, thermal management cooperation and modular design, comprehensive improvement of installation efficiency, operation reliability and maintenance convenience is realized, and the system is suitable for harsh outdoor scenes such as outdoor ring main units and the like.

Description

Technical Field

[0001] The present invention belongs to the technical field of electric energy metering, and in particular relates to a multifunctional electric energy metering device. Background Art

[0002] An electric energy metering device is a combination of equipment used to measure and record electric energy data, mainly including electric energy meters, mutual inductors, secondary circuits, etc. Its core function is to accurately measure electric energy consumption as a basis for electricity bill settlement and monitor the operating status of the power system. Electric energy metering devices generate a large amount of heat during operation, especially when operating under high load. If this heat is not dissipated in time, the temperature of the equipment will rise. Temperature is one of the important factors affecting the performance of electronic equipment. Excessive temperature can cause the performance of electronic components to degrade or even damage them. High temperature may also cause equipment failure or safety accidents, affecting its normal operation and measurement accuracy. Therefore, in order to help dissipate this heat and maintain the stable operation of the equipment, R&D personnel use cooling fans, radiators and other equipment based on existing technologies to dissipate the heat generated by the equipment into the environment, keeping the equipment running at a low temperature.

[0003] However, in hot outdoor environments like summer, where the temperature difference between inside and outside is small, simply circulating air through a cooling fan to achieve cooling is ineffective. Therefore, the present invention aims to provide an energy metering device that can significantly improve its heat dissipation at a low cost.

[0004] For example, the utility model with announcement number CN208461296U discloses a self-heating electric power meter box, including a box body and an electric energy metering device, the electric energy metering device is arranged inside the box body, and the two side walls of the box body are provided with an air inlet and a cooling port, the air inlet is connected to the cooling port, an air inlet fan is provided in the air inlet, a refrigeration device is provided in the cooling port, an air blowing port is provided at the bottom of the box body, a blowing fan is provided in the air blowing port, a supporting mechanism is provided at the bottom of the electric energy metering device, one end of the supporting mechanism is connected to the bottom of the electric energy metering device, and the other end is connected to the bottom of the box body, and ventilation holes are provided at the upper and lower ends of the electric energy metering device. It is mainly used to solve the problem of self-heating and good shock absorption effect. However, in this application, the temperature of the incoming air flow is reduced by setting up a cooling device separately, which not only wastes electricity, but also has a low lifespan of the cooling device, and cannot meet the long-term and low-cost cooling needs of the metering device. Summary of the Invention

[0005] In view of this, the present invention proposes a multifunctional electric energy metering device.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: A multifunctional electric energy metering device includes a base and an electric energy metering box, wherein the electric energy metering box is installed on the base; wherein the base is a U-shaped plate, and two limit rods are symmetrically and rotatably installed on the base; the two limit rods are respectively clamped on both sides of the electric energy metering box; and a cooling assembly is also installed at the bottom of the electric energy metering box.

[0007] Furthermore, the U-shaped plate includes a symmetrically arranged long side plate and a short side plate, and an extension plate is longitudinally arranged on the lower side of the long side plate on the U-shaped plate; slots are symmetrically opened on both sides of the groove of the U-shaped plate, and the two limit rods are respectively rotatably installed in the two slots.

[0008] Furthermore, a first through hole is provided on the upper portion of the two limit rods, and a second through hole is provided on the long side plate of the U-shaped plate at the closest point to the two first through holes, and a screw is used to pass through each of the first through hole and the second through hole to fix the electricity meter box on the base.

[0009] Furthermore, the cooling assembly includes an outer surrounding block wrapped around the outside of the electricity meter box on three sides, and the outer surrounding block is a U-shaped structure; first U-shaped grooves are longitudinally and penetrated on both sides of the outer surrounding block, and the setting directions of the two first U-shaped grooves are respectively the same as the setting directions of the two limit rods. After the two limit rods are rotated to the vertical direction, they are just embedded in the two first U-shaped grooves.

[0010] Furthermore, a water storage cavity is provided at the bottom of the outer surrounding block; and a sealing ring is provided on the inner circumference of the outer surrounding block.

[0011] Furthermore, a curved air inlet duct is provided at the outer bottom of the electricity meter box, the air inlet of the air inlet duct is arranged at the lower front part of the electricity meter box, a fan is provided at the air inlet, and a temperature sensor is installed in the electricity meter box; the air outlet of the air inlet duct is directly connected to the electricity meter box.

[0012] Furthermore, a second U-shaped groove is provided longitudinally and through the first side of the electricity meter box, a water leakage groove is provided at the lower part of the second side of the electricity meter box, and the bottom of the water leakage groove is connected to the water storage chamber; a water leakage port is provided on the outer surrounding block, and the water leakage port is arranged parallel to the upper part of the water leakage groove.

[0013] Furthermore, a filter is provided on the upper side of the second U-shaped groove; an L-shaped air outlet duct is installed on the upper side of the electric energy metering box, and the air inlet of the L-shaped air outlet duct is connected to the electric energy metering box.

[0014] Furthermore, the outer surrounding block is provided with a plurality of first threaded holes, and the electric energy meter box is provided with a plurality of second threaded holes. Screws are passed through the first threaded holes and the second threaded holes to install the outer surrounding block to the outside of the electric energy meter box.

[0015] Furthermore, a third threaded hole is provided on each of the long side plate and the extension plate, and the electric energy metering device is mounted on the wall by using bolts passing through the third threaded holes.

[0016] The beneficial effects of the present invention are: The U-shaped base with double limit rods allows for quick positioning. The symmetrically rotating limit rods are used to quickly clamp and fix the energy meter box through the first and second through holes, reducing installation time by more than 60% compared to traditional bolt docking. A circumferential sealing ring is set at the contact position between the outer ring block and the electric energy metering device to ensure the airtightness between the water storage chamber and the equipment. The IP protection level reaches IP65. The rainwater is filtered and stored in the water storage chamber through the second U-shaped groove. When there is too much rainwater, it can overflow through the leaking hole. In this application, the rainwater is used as condensate. Every time it rains, the excess rainwater can be overflowed while the water is entering. This setting can automatically replace the rainwater stored inside, saving condensation costs. In addition, a curved air inlet duct is provided. When the electric energy meter box is embedded in the outer surrounding block, the air inlet duct will be embedded in the water storage cavity. When water enters the water storage cavity, the entire wall of the air inlet duct will be immersed in rainwater. The incoming air will cool down after passing through the air inlet duct and then enter the electric energy meter box. This setting can reduce the temperature inside the box without making the inside of the box damp. The present application also adopts a detachable maintenance structure, which allows the outer ring block to be quickly disassembled. The screw connection method of the first threaded hole and the second threaded hole supports the disassembly of the cooling assembly within 5 minutes, which is convenient for cleaning the water storage chamber or replacing the sealing ring; The U-shaped base serves as both structural support and heat dissipation diversion, reducing the cost of additional brackets and saving approximately 1.2kg of steel per device. The fan operates at a variable frequency based on temperature sensor data, reducing annual power consumption by 40% compared to the normally on mode. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an overall schematic diagram of the present invention.

[0018] Figure 2 Schematic diagram of the electric energy meter box of the present invention (door closed).

[0019] Figure 3 It is a schematic diagram of the electric energy meter box of the present invention (door open).

[0020] Figure 4This is a schematic diagram of the combination of the electric energy meter box and the outer surrounding block in the present invention.

[0021] Figure 5 It is a schematic diagram of the outer surrounding block in the present invention.

[0022] Figure 6 The base of the present invention is shown in FIG. Figure 1 .

[0023] Figure 7 The base of the present invention is schematically shown Figure 2 .

[0024] The attached figure shows: 1: base, 2: limiting rod, 3: long side plate, 4: short side plate, 5: extension plate, 6: slot, 7: first through hole, 8: second through hole, 9: outer surround block, 10: first U-shaped groove, 11: water storage chamber, 12: sealing ring, 13: air inlet duct, 14: fan, 15: temperature sensor, 16: second U-shaped groove, 17: water leakage groove, 18: water leakage port, 19: filter, 20: L-shaped air outlet duct, 21: first threaded hole, 22: second threaded hole, 23: third threaded hole. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0027] Example like Figure 1-7 As shown, this embodiment discloses a multifunctional electric energy metering device, including a base 1 and an electric energy metering box, and the electric energy metering box is installed on the base 1. The base 1 is a U-shaped plate, and two limit rods 2 are symmetrically and rotatably installed on the base 1. The two limit rods 2 are respectively clamped on both sides of the electric energy metering box to fix the two sides of the electric energy metering box. A cooling assembly is also installed at the bottom of the electric energy metering box. Because a certain volume of rainwater will be placed in the cooling assembly in this application, in order to ensure the firm installation of the electric energy metering device, a base 1 is provided to increase the installation strength of the metering device on the wall.

[0028] The U-shaped plate comprises symmetrically arranged long side plates 3 and short side plates 4. An extension plate 5 is longitudinally positioned below the long side plates 3. Both the long side plates 3 and the extension plate 5 are provided with third threaded holes 23. Bolts passing through these third threaded holes 23 are used to secure the electric energy metering device to the wall, effectively enhancing its robustness. Slots 6 are symmetrically defined on either side of the U-shaped plate, and the two limiting rods 2 are rotatably mounted within these slots 6.

[0029] A first through-hole 7 is formed in the upper portion of each of the two limiting rods 2. Second through-holes 8 are formed on the long side panels 3 of the U-shaped plate at the points closest to the two first through-holes 7. Screws are inserted through each of the first and second through-holes 7, 8, to secure the energy meter box to the base 1. In this embodiment, the screws can also be inserted directly through the first and second through-holes 7, 8, and then into the wall. This arrangement further enhances the robustness of the metering device. Expansion screws can be installed in the wall to insert the screws.

[0030] The cooling assembly includes a U-shaped outer surround block 9 that wraps around the outside of the energy meter box on three sides. A first U-shaped groove 10 is longitudinally defined on both sides of the outer surround block 9. The orientation of the two first U-shaped grooves 10 is the same as that of the two limiting rods 2. When the two limiting rods 2 are rotated to the vertical position, they fit neatly into the corresponding first U-shaped grooves 10.

[0031] The bottom of the outer surrounding block 9 is also provided with a water storage cavity 11 for storing rainwater. A sealing ring 12 is provided on the inner circumference of the outer surrounding block 9 to prevent rainwater from seeping out.

[0032] A curved air inlet duct 13 is also provided at the outer bottom of the power meter box. The air inlet of the air inlet duct 13 is located at the lower front portion of the power meter box. A fan 14 is provided at the air inlet, and a temperature sensor 15 is installed within the power meter box. The air outlet of the air inlet duct 13 is directly connected to the power meter box. In the present application, a microcontroller can be provided within the power meter box, and a solar power supply connected to the microcontroller can also be provided. The microcontroller is connected to the temperature sensor 15 and the fan 14 to control the start and stop of the fan 14 according to the temperature within the meter box, effectively saving energy. In the present application, the microcontroller can also be directly connected to the power supply within the power meter box.

[0033] A second U-shaped groove 16 is longitudinally and continuously formed on the first side of the energy meter box, used to guide rainwater into the water storage chamber 11. A water leakage groove 17 is formed at the lower portion of the second side of the energy meter box, the bottom of which is connected to the water storage chamber 11. A water leakage port 18 is formed on the outer surrounding block 9, parallel to the upper portion of the water leakage port 17. When the water storage chamber 11 exceeds its capacity, the water level in the water leakage groove 17 continues to rise until it overflows from the water leakage port 18.

[0034] A filter 19 is installed above the second U-shaped groove 16 to prevent fallen leaves, dust, and the like from entering the water storage chamber 11. An L-shaped air outlet duct 20 is installed above the power meter box, the air inlet of which connects to the power meter box. This application does not employ a straight-tube air outlet duct, but rather an L-shaped duct to minimize the amount of uncooled external air entering the meter box.

[0035] The outer surrounding block 9 is provided with a plurality of first threaded holes 21, and the energy meter box is provided with a plurality of second threaded holes 22. Screws or bolts are inserted through the first and second threaded holes 21, 22 to mount the outer surrounding block 9 to the exterior of the energy meter box. This arrangement facilitates removal of the outer surrounding block 9 and cleaning of the water storage chamber 11.

[0036] The method for using the multifunctional electric energy metering device of the present invention mainly includes the steps of installing the electric energy metering box and the cooling assembly and fixing the electric energy metering device: First, embed the electric energy meter box into the outer surrounding block 9, and use screws or bolts to pass through the first threaded holes 21 and the second threaded holes 22 to install the outer surrounding block 9 to the outside of the electric energy meter box; Place the preliminarily installed electric energy meter box on the base 1, and rotate and move the two limit rods 2 respectively, so that the two limit rods 2 are rotated to the vertical direction and are exactly embedded in the two first U-shaped grooves 10; A first through hole 7 is formed on the upper portion of the two limiting rods 2, and a second through hole 8 is formed on the long side plate 3 of the U-shaped plate at the point closest to the two first through holes 7. Screws are used to penetrate the first through holes 7 and the second through holes 8 into the wall to fix the electric energy meter box on the base 1 and indirectly fix the entire metering device to the wall. Bolts may also be used to penetrate the third threaded holes of the long side plates 3 and connect to the wall to further enhance the firmness of the metering device.

[0037] The principle of the multifunctional electric energy metering device of the present invention to achieve low-cost cooling and ventilation is as follows: On rainy days, rainwater is collected into the water storage chamber 11 from the second U-shaped groove 16. When there is too much rainwater, the excess rainwater overflows from the leaking port 18. In hot weather, the external ambient air enters from the fan 14 and then passes through the air inlet duct 13. Since the air inlet duct 13 is completely immersed in the water storage chamber 11, it can cool the hot air flowing through the air inlet duct 13. The cooled air enters the interior of the electric energy meter box from the air outlet and is then discharged from the air outlet duct 20 at the top, thereby achieving a cooling effect on the electric energy meter box.

[0038] It should also be noted that four, six or eight electricity meters can be installed inside the electricity meter box described in this application according to needs. The specific number of installations is designed according to the needs of technical personnel. Since this application mainly protects the technical effects of low-cost cooling and firm fixation, the installation methods of different electricity meters are common knowledge in the field. Therefore, the different installation methods of different electricity meters in the electricity meter box will not be elaborated here.

[0039] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

Claims

1. A multifunctional electric energy metering device, characterized in that: It includes a base and an electric energy meter box, and the electric energy meter box is installed on the base; wherein, the base is a U-shaped plate, and two limit rods are symmetrically and rotatably installed on the base; the two limit rods are respectively clamped on both sides of the electric energy meter box; a cooling component is also installed at the bottom of the electric energy meter box.

2. A multifunctional electric energy metering device according to claim 1, characterized in that: The U-shaped plate includes a symmetrically arranged long side plate and a short side plate, and an extension plate is longitudinally arranged on the lower side of the long side plate of the U-shaped plate; slots are symmetrically opened on both sides of the groove of the U-shaped plate, and the two limit rods are respectively rotatably installed in the two slots.

3. A multifunctional electric energy metering device according to claim 2, characterized in that: A first through hole is provided on the upper portion of the two limit rods, and a second through hole is provided on the long side plate of the U-shaped plate at the closest point to the two first through holes. A screw is used to penetrate each of the first through hole and the second through hole to fix the electricity meter box on the base.

4. A multifunctional electric energy metering device according to claim 3, characterized in that: The cooling assembly includes an outer surrounding block wrapped on three sides around the outside of the electricity meter box, and the outer surrounding block is a U-shaped structure; first U-shaped grooves are longitudinally and penetrated on both sides of the outer surrounding block, and the setting directions of the two first U-shaped grooves are respectively the same as the setting directions of the two limit rods. After the two limit rods are rotated to the vertical direction, they are exactly embedded in the two first U-shaped grooves.

5. A multifunctional electric energy metering device according to claim 4, characterized in that: A water storage cavity is also provided at the bottom of the outer surrounding block; and a sealing ring is circumferentially provided on the inner side of the outer surrounding block.

6. A multifunctional electric energy metering device according to claim 5, characterized in that: A curved air inlet duct is also provided at the outer bottom of the electricity meter box. The air inlet of the air inlet duct is arranged at the lower front part of the electricity meter box. A fan is provided at the air inlet. A temperature sensor is installed in the electricity meter box. The air outlet of the air inlet duct is directly connected to the electricity meter box.

7. A multifunctional electric energy metering device according to claim 6, characterized in that: A second U-shaped groove is provided longitudinally and through the first side of the electricity meter box, and a water leakage groove is provided at the lower part of the second side of the electricity meter box, and the bottom of the water leakage groove is connected to the water storage chamber; a water leakage port is provided on the outer surrounding block, and the water leakage port is arranged parallel to the upper part of the water leakage groove.

8. A multifunctional electric energy metering device according to claim 7, characterized in that: A filter is provided on the upper side of the second U-shaped groove; an L-shaped air outlet duct is installed on the upper side of the electric energy metering box, and the air inlet of the L-shaped air outlet duct is connected to the electric energy metering box.

9. A multifunctional electric energy metering device according to claim 8, characterized in that: The outer surrounding block is provided with a plurality of first threaded holes, and the electric energy meter box is provided with a plurality of second threaded holes. Screws are passed through the first threaded holes and the second threaded holes to install the outer surrounding block to the outside of the electric energy meter box.

10. A multifunctional electric energy metering device according to claim 9, characterized in that: The long side plate and the extension plate are both provided with a third threaded hole, and the electric energy metering device is installed on the wall by using bolts passing through the third threaded holes.

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