Electric energy metering box with heat dissipation structure

Abstract

The utility model discloses a kind of electric energy metering box of heat dissipation structure, the electric energy metering box of this heat dissipation structure includes box, the box is equipped with the mounting plate of inclination setting, and close to the entrance of box, the back of the mounting plate is fixed with heat conduction plate, the heat conduction plate is equipped with several equidistance heat dissipation fins, the mounting plate is extended with the connecting portion of vertical setting, the connecting portion is formed with heat dissipation channel between box backplate, the inner bottom of the box is equipped with the ventilation hole of array distribution. By inclination mounting plate and box backplate constitute tapering heat dissipation channel, guide cold air and heat dissipation fin heat exchange using chimney effect, form low-density area, hot air rises along heat dissipation channel, airflow parallel heat dissipation surface reduces invalid heat dissipation, according to pressure difference effect accelerates hot air discharge, avoid heat accumulation, reduce electric meter and electrical components overheat and cause explosion or misoperation risk, improve equipment operation stability and security.

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 a heat dissipation structure. Background Technology

[0002] Electricity metering boxes are used for the installation and protection of electricity meters. They typically house multiple meters and occupy a considerable amount of space. As precision electronic devices, electricity meters integrate metering chips, current and voltage sampling circuits, display modules, and other components, generating heat during operation.

[0003] If heat cannot be effectively dissipated, prolonged exposure to high temperatures will accelerate the aging of electronic components and insulating materials, leading to decreased accuracy in electricity metering and affecting fair settlement between users and power suppliers. Furthermore, severe heat accumulation may cause overheating and damage to the meter or internal control module, or even explosion, posing safety hazards. These problems are particularly pronounced in high-altitude, high-temperature, or areas with significant temperature variations. To address these issues, the applicant proposes an improved technical solution aimed at enhancing the heat dissipation performance and operational reliability of the electricity metering box. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the traditional power metering box design and to provide a product that improves heat dissipation efficiency, enhances equipment operation stability and safety.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] An energy metering box with a heat dissipation structure includes a box body. An inclined mounting plate is provided inside the box body near the entrance of the box body. A heat-conducting plate is fixed on the back of the mounting plate. The heat-conducting plate has a plurality of equally spaced heat dissipation fins. The mounting plate extends with a vertically arranged connecting part, which forms a heat dissipation channel with the back plate of the box body. An array of ventilation holes is provided at the bottom of the box body. The box body has a detachable top cover with an array of heat dissipation holes.

[0007] Preferably, the bottom of the housing is provided with a pull-out filter bracket, the filter bracket is provided with a filter screen and fits into the air inlet of the ventilation hole, and the filter bracket is provided with a handle.

[0008] Preferably, the air inlet of the heat dissipation hole is provided with an expansion portion.

[0009] Preferably, the inner walls of the box are provided with first support parts on both sides and abut against the heat-conducting plate, and the inner sides of the box are provided with second support parts and abut against the connecting parts.

[0010] Preferably, screws are provided on both sides of the second support and at the top and bottom of the heat-conducting plate, and pass through the connecting part and the mounting plate respectively, and the screws are threaded to the nuts.

[0011] Preferably, the mounting plate and connecting part are provided with an array of rectangular mounting holes.

[0012] Preferably, a waterproof cover plate is provided above the top cover. The waterproof cover plate has an inwardly recessed groove and is located above the heat dissipation hole. Inclined surfaces are provided on both sides of the groove to guide the flow of the medium.

[0013] Beneficial effects:

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention utilizes a mounting plate to conduct heat generated by the meter and electrical components to the heat-conducting plate and heat dissipation fins. The inclined mounting plate and the back panel of the enclosure form a tapered heat dissipation channel, increasing the contact area between the heat dissipation fins and cold air, shortening the hot air flow path, and enhancing the pressure difference driving effect. Cold air enters through the ventilation holes, exchanges heat with the heat dissipation fins to form low-density hot air, and rises naturally along the heat dissipation channel. The airflow is parallel to the heat dissipation surface, reducing ineffective heat dissipation and improving heat dissipation efficiency. The pressure difference accelerates the airflow within the heat dissipation channel, prompting the hot air to be quickly discharged from the heat dissipation holes, achieving rapid heat dissipation. This design is based on the chimney effect principle, effectively preventing heat accumulation, reducing the risk of explosion or malfunction caused by overheating of the meter and electrical components, and improving the stability and safety of equipment operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an energy metering box with a heat dissipation structure according to the present invention;

[0017] Figure 2 This is a side cross-sectional view of an energy metering box with a heat dissipation structure according to the present invention.

[0018] Figure 3 This is an exploded view of an energy metering box with a heat dissipation structure according to the present invention.

[0019] The correspondence between the labels and component names in the attached figures is as follows:

[0020] Reference numerals: 1. Housing; 2. Mounting plate; 3. Heat-conducting plate; 4. Top cover; 5. Filter bracket; 6. Filter screen; 7. Screw; 8. Waterproof cover; 9. Heat dissipation channel; 11. Ventilation hole; 12. First support part; 13. Second support part; 21. Connecting part; 22. Mounting hole; 31. Heat dissipation fins; 41. Heat dissipation hole; 42. Expansion part; 51. Handle; 71. Nut; 81. Groove; 82. Inclined surface. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In this embodiment of the utility model, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0024] Reference example Figures 1 to 3 An energy metering box with a heat dissipation structure includes a box body 1. An inclined mounting plate 2 is provided inside the box body 1 and is located near the entrance of the box body 1. A heat-conducting plate 3 is fixed on the back of the mounting plate 2. The heat-conducting plate 3 is provided with a plurality of equally spaced heat dissipation fins 31. The mounting plate 2 extends and is provided with a vertically arranged connecting part 21. The connecting part 21 and the back plate of the box body 1 form a heat dissipation channel 9. An array of ventilation holes 11 is provided at the bottom of the inner side of the box body 1. The box body 1 is provided with a detachable top cover 4. The top cover 4 is provided with an array of heat dissipation holes 41.

[0025] The heat generated by the meter and electrical components is conducted through the mounting plate 2 to the heat-conducting plate 3 and the heat dissipation fins 31. The inclined mounting plate 2 and the back plate of the housing 1 form a tapered heat dissipation channel 9, which increases the contact area between the heat dissipation fins 31 and the cold air, shortens the flow path of the hot air, and enhances the pressure difference driving effect. The cold air enters through the ventilation hole 11, exchanges heat with the heat dissipation fins 31 to form low-density hot air, and rises naturally along the heat dissipation channel 9. The airflow flows parallel to the heat dissipation surface, reducing ineffective heat dissipation and improving heat dissipation efficiency. The pressure difference accelerates the airflow in the heat dissipation channel 9, causing the hot air to be quickly discharged from the heat dissipation hole 41, realizing rapid heat dissipation. This design is based on the chimney effect principle, effectively avoiding heat accumulation, reducing the risk of explosion or malfunction caused by overheating of the meter and electrical components, and improving the stability and safety of equipment operation.

[0026] It is worth mentioning that the bottom of the housing 1 is equipped with a pull-out filter bracket 5. The filter bracket 5 is equipped with a filter screen 6 and is attached to the air inlet of the ventilation hole 11. The filter bracket 5 is equipped with a handle 51, which can be pulled out to facilitate the replacement and cleaning of the filter screen 6. The filter screen 6 effectively filters out impurities in the air entering the housing 1, ensuring the cleanliness of the equipment. The ventilation hole 11 is not only set between the mounting plate 2 and the back plate of the housing 1, but also distributed between the inlet of the housing 1 and the mounting plate 2. Combined with the chimney effect, after the cold air enters through the ventilation hole 11, it directly exchanges heat with the meter and electrical components, forming a dual heat dissipation effect, further accelerating heat dissipation, improving the overall heat dissipation efficiency, extending the service life of the equipment, and enhancing the reliability of system operation.

[0027] It is worth mentioning that the air inlet of the heat dissipation hole 41 is provided with an expansion section 42. The structural design of the expansion section 42 increases the cross-sectional area of ​​the outlet of the heat dissipation hole 41, reduces the resistance to hot air exhaust, accelerates the hot air overflow speed, and enhances the airflow drive in combination with the chimney effect, thereby improving the airflow efficiency in the heat dissipation channel 9, promoting the rapid dissipation of heat, avoiding the accumulation of heat in the housing 1, enhancing the overall performance of the heat dissipation system, and ensuring the long-term stable operation of the equipment.

[0028] It is worth mentioning that the inner walls of the housing 1 are provided with first support parts 12 on both sides and abut against the heat conduction plate 3, and the inner sides of the housing 1 are provided with second support parts 13 and abut against the connecting part 21. The first support parts 12 and the second support parts 13 provide precise positioning positions for the mounting plate 2 and the connecting plate, simplify the assembly process, ensure the stability of the structural connection, enhance the overall structural rigidity, reduce assembly errors, improve the fitting accuracy between components, and ensure that the equipment is structurally robust and reliable during long-term operation.

[0029] It is worth mentioning that screws 7 are provided on both sides of the second support part 13 and at the top and bottom of the heat-conducting plate 3, respectively passing through the connecting part 21 and the mounting plate 2. The screws 7 are threaded to the nuts 71. The mounting plate 2 and the heat-conducting plate 3 are tightly fitted by the screws 7 and the nuts 71, which effectively reduces the contact gap, improves the heat conduction efficiency, ensures that heat is efficiently transferred from the mounting plate 2 to the heat-conducting plate 3, reduces the accumulation of thermal resistance, and enhances the heat dissipation performance.

[0030] It is worth mentioning that the mounting plate 2 and the connecting part 21 are provided with an array of rectangular mounting holes 22. The meter and electrical components are connected and fixed to the mounting plate 2 or the connecting part 21 through the mounting holes 22. The inclined design of the mounting plate 2 makes it easy for operators to see whether the wiring port of the meter is stably connected to the wire, reducing the need to bend down to check. At the same time, it facilitates the insertion and operation of tools and reduces the difficulty of maintenance.

[0031] It is worth mentioning that a waterproof cover plate 8 is provided above the top cover 4. The waterproof cover plate 8 has an inwardly recessed groove 81 and is located above the heat dissipation hole 41. Inclined surfaces 82 are provided on both sides of the groove 81 to guide the flow of the medium. The inclined surfaces 82 are designed to guide the vertically rising hot air to quickly leave the space between the waterproof cover plate 8 and the top cover 4 and flow smoothly along both ends of the box 1, promoting the rapid discharge of hot air and preventing heat from accumulating in the top area. The waterproof cover plate 8 not only effectively blocks rainwater from splashing onto the heat dissipation hole 41, but also prevents direct sunlight from hitting the heat dissipation hole 41, reducing the impact of external heat sources on the internal temperature of the box 1, maintaining the stability of the internal temperature of the equipment, improving the overall efficiency of the heat dissipation system, and enhancing the adaptability and operational reliability of the equipment in complex environments.

[0032] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. An energy metering box with a heat dissipation structure, comprising a box body (1), characterized in that: The box (1) is provided with an inclined mounting plate (2) near the entrance of the box (1). A heat-conducting plate (3) is fixed on the back of the mounting plate (2). The heat-conducting plate (3) is provided with a number of equally spaced heat dissipation fins (31). The mounting plate (2) extends with a vertically arranged connecting part (21). The connecting part (21) and the back plate of the box (1) form a heat dissipation channel (9). The bottom of the box (1) is provided with an array of ventilation holes (11). The box (1) is provided with a detachable top cover (4). The top cover (4) is provided with an array of heat dissipation holes (41).

2. The heat-dissipating electric energy metering box according to claim 1, characterized in that: The bottom of the housing (1) is provided with a pull-out filter bracket (5), the filter bracket (5) is provided with a filter screen (6) and is attached to the air inlet of the ventilation hole (11), and the filter bracket (5) is provided with a handle (51).

3. The heat-dissipating electric energy metering box according to claim 1, characterized in that: The air inlet of the heat dissipation hole (41) is provided with an expansion part (42).

4. The power metering box with a heat dissipation structure according to claim 1, characterized in that: The inner walls of the box (1) are provided with first support parts (12) on both sides and abut against the heat conduction plate (3). The inner sides of the box (1) are provided with second support parts (13) and abut against the connecting part (21).

5. The heat-dissipating electric energy metering box according to claim 4, characterized in that: The second support part (13) is provided with screws (7) on both sides and at the top and bottom of the heat-conducting plate (3), and they pass through the connecting part (21) and the mounting plate (2) respectively. The screws (7) are threaded to the nuts (71).

6. The heat-dissipating electric energy metering box according to claim 1, characterized in that: The mounting plate (2) and the connecting part (21) are provided with an array of rectangular mounting holes (22).

7. The heat-dissipating electric energy metering box according to claim 1, characterized in that: A waterproof cover plate (8) is provided above the top cover (4). The waterproof cover plate (8) has an inwardly recessed groove (81) and is located above the heat dissipation hole (41). Inclined surfaces (82) are provided on both sides of the groove (81) to guide the flow of the medium.

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