A heat dissipation structure for an electricity metering box

Abstract

This utility model discloses a heat dissipation structure for an electricity metering box, comprising a box body with main rainproof ventilation holes on both sides and an openable door on the front. A heat insulation board is laid on the inner side of the door, and a corrugated heat-conducting plate is installed between the heat insulation board and the door, forming a heat insulation cavity. Miniature rainproof ventilation holes are also provided on both sides of the door, communicating with the heat insulation cavity. By installing a heat insulation board on the inner side and utilizing the corrugated heat-conducting plate and miniature convection ducts, this utility model directly guides and dissipates the solar heat absorbed by the door to the outside of the box, fundamentally preventing the door from radiating heat into the box as the main heat-receiving surface. This significantly reduces the peak internal temperature during midday and other high-temperature periods, ensuring that the internal electrical equipment operates within a safe temperature range.

Description

Technical Field

[0001] This utility model relates to the field of power metering box technology, and in particular to a heat dissipation structure for power metering boxes. Background Technology

[0002] The heat dissipation structure of electricity metering boxes usually involves opening ventilation holes on the box body to allow air to circulate inside, thereby achieving the effect of ventilation and heat dissipation. Due to the large number of electricity metering boxes used in various scenarios, it is impossible to achieve the ideal heat dissipation effect for every electricity metering box. For example, the front of the electricity metering box is where the door is located. Year-round sunlight will cause the temperature inside the box to soar during the midday period. In addition, since electricity metering boxes are mostly made of sheet metal, the internal temperature of the box can easily exceed the temperature that the electrical appliances can withstand. The heat dissipation environment is not adequately considered in the design. Utility Model Content

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0004] To address the aforementioned problems, this utility model provides the following technical solution:

[0005] A heat dissipation structure for an electricity metering box includes a box body with main rainproof vent holes on both sides. The front of the box body is equipped with an openable door. A heat insulation board is laid on the inside of the door. A corrugated heat-conducting plate is installed between the heat insulation board and the door, forming a heat insulation cavity. Miniature rainproof vent holes are also opened on both sides of the door, which are connected to the heat insulation cavity.

[0006] As a preferred embodiment of the heat dissipation structure of the power metering box of this utility model, the ventilation holes of the miniature rainproof cover have the same shape as the ventilation holes of the main rainproof cover.

[0007] As a preferred embodiment of the heat dissipation structure of the power metering box of this utility model, the two ends of the corrugated heat-conducting plate are in contact with the box door and the heat insulation plate respectively, and the heat insulation cavity is divided into multiple sub-chambers.

[0008] As a preferred embodiment of the heat dissipation structure of the power metering box of this utility model, each of the sub-chambers is connected to a pair of miniature rainproof vent holes.

[0009] As a preferred embodiment of the heat dissipation structure of the power metering box of this utility model, wherein: the surface of the corrugated heat-conducting plate of each sub-chamber is provided with heat dissipation fins along the convection direction of the ventilation holes of the miniature rainproof cover.

[0010] As a preferred embodiment of the heat dissipation structure of the power metering box of this utility model, the back of the box is provided with a bracket, and the box door is provided with several reserved windows.

[0011] As a preferred embodiment of the heat dissipation structure of the power metering box of this utility model, the reserved window is provided with a window heat insulation structure, the window heat insulation structure includes a binding frame, a sliding strip, a baffle and a push plate, the binding frame is set inside the box door, the sliding strip is set outside the box door, the baffle is slidably provided on the sliding strip, and the push plate is provided on the baffle.

[0012] The beneficial effects of this utility model are: by setting a heat insulation plate on the inside and using a corrugated heat-conducting plate and a micro convection air duct to directly guide and dissipate the solar heat absorbed by the door to the outside of the box, the heat radiated into the box by the door as the main heat-receiving surface is fundamentally avoided, thereby significantly reducing the peak temperature inside the box during high-temperature periods such as midday, and ensuring that the internal electrical equipment operates within a safe temperature range.

[0013] A self-driven micro-active convection air duct is formed inside the door structure, which changes the traditional mode of simply relying on passive ventilation. This active heat dissipation mechanism does not rely on external wind force and can continuously and efficiently remove the heat from the key heat source (door), greatly improving the heat dissipation efficiency of the metering box in poor ventilation or still wind environments.

[0014] The design of the miniature rainproof cover ventilation holes achieves directional heat dissipation while maintaining the same protective consistency with the main ventilation holes. This structure eliminates the need to increase the area of ​​the main ventilation holes in the box to enhance heat dissipation, thus perfectly resolving the contradiction between heat dissipation requirements and protection requirements such as dust and moisture protection, and ensuring the safe operation of the metering box in harsh weather conditions.

[0015] The entire optimized structure is integrated inside the cabinet door, eliminating the need for energy-consuming components such as fans and semiconductor cooling chips. Through ingenious physical structure design, it achieves a leap in performance and has the advantages of simple structure, controllable cost, reliable operation, and maintenance-free operation. It is very suitable for large-scale and widespread application scenarios of electricity metering boxes. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0017] Figure 1 This is a perspective view of the entire embodiment.

[0018] Figure 2This is a perspective view of the entire cabinet door in this embodiment.

[0019] Figure 3 This is an example. Figure 2 A partial schematic diagram.

[0020] Figure 4 This is a partial perspective view of the cabinet door in this embodiment.

[0021] Figure 5 This is an enlarged view of the side of the cabinet door in this embodiment.

[0022] Figure 6 This is a three-dimensional view of the corrugated heat-conducting plate in the box of this embodiment.

[0023] Figure 7 This is an example. Figure 1 A three-dimensional view of the central window insulation structure 205.

[0024] In the diagram: 100 for the housing, 101 for the main rainproof cover ventilation hole, and 102 for the bracket;

[0025] Box door 200, heat insulation cavity 200a, heat insulation board 201, corrugated heat conduction plate 202, heat dissipation fins 202a, miniature rainproof cover ventilation hole 203, reserved window 204, window heat insulation structure 205, restraint frame 205a, slide strip 205b, baffle 205c, push plate 205e. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0029] Example

[0030] Reference Figures 1 to 7This embodiment of the present invention provides a heat dissipation structure for an electricity metering box, including a box body 100. The box body 100 has main rainproof ventilation holes 101 on both sides. The front of the box body 100 is equipped with an openable door 200. A heat insulation plate 201 is laid inside the door 200. A corrugated heat-conducting plate 202 is installed between the heat insulation plate 201 and the door 200, forming a heat insulation cavity 200a. Miniature rainproof ventilation holes 203 are also provided on both sides of the door 200, communicating with the heat insulation cavity 200a. The ventilation holes 203 of the cover have the same shape as the ventilation holes 101 of the main rainproof cover; the two ends of the corrugated heat-conducting plate 202 are in contact with the door 200 and the heat insulation plate 201 respectively, and divide the heat insulation cavity 200a into multiple sub-chambers; each sub-chamber is connected to a pair of miniature rainproof cover ventilation holes 203; the surface of the corrugated heat-conducting plate 202 of each sub-chamber is provided with heat dissipation fins 202a along the convection direction of the miniature rainproof cover ventilation holes 203; a bracket 102 is provided on the back of the box 100, and several reserved windows 204 are provided on the door 200.

[0031] Specifically, the box 100 serves as the main structure, with main rainproof vents 101 on both sides, forming the main channel for the exchange of air between the box and the external environment.

[0032] As a component directly exposed to sunlight, the door 200 has an insulation board 201 on its inner side, which can effectively block external heat from radiating and conducting into the box.

[0033] Active heat conduction and convection structure: This structure is located between the door 200 and the insulation plate 201, specifically including a corrugated heat conduction plate 202. The two ends of the heat conduction plate are in close contact with the inner wall of the door 200 and the outer surface of the insulation plate 201, respectively, thereby dividing the gap between the door 200 and the insulation plate 201 into multiple independent insulation sub-chambers 200a. Corresponding to the micro convection channels (sub-chambers) on both sides of the door 200, micro rainproof vent 203 is provided at the position of each sub-chamber 200a. The shape of these vents is the same as the main rainproof vent 101 on both sides of the box body 100, maintaining good ventilation, heat dissipation and protection consistency.

[0034] On the surface of the corrugated heat-conducting plate 202 inside each sub-chamber 200a, along the expected air convection direction of the micro rainproof vent 203, heat dissipation fins 202a are provided to increase the heat exchange area and improve heat conduction and heat dissipation efficiency.

[0035] The back of the enclosure 100 is provided with a bracket 102 for installation and fixing, and the door 200 is also provided with a reserved window 204 for observing the meter reading.

[0036] A window insulation structure 205 is provided at the reserved window 204. The window insulation structure 205 includes a binding frame 205a, a sliding strip 205b, a baffle 205c, and a push plate 205e. The binding frame 205a is located inside the box door 200, and the sliding strip 205b is located outside the box door 200. The baffle 205c is slidably mounted on the sliding strip 205b, and the push plate 205e is mounted on the baffle 205c. When it is necessary to read the meter, the push plate 205e is pushed, which causes the baffle 205c to slide along the sliding strip 205b, making room for observation window 204. After reading the meter, the baffle 205c is pushed back to its original position to cover the window. At this time, the baffle and the binding frame 205a on the box door work together to form an effective heat insulation barrier, thereby blocking heat exchange when observation is not required.

[0037] Working principle: When the door 200 is exposed to direct sunlight, its surface temperature rises rapidly. Traditional structures would radiate this heat directly into the chamber, while this structure blocks most of the radiant heat through the heat insulation plate 201. At the same time, the high temperature is conducted through the door 200 to the corrugated heat-conducting plate 202 in close contact with it. The corrugated structure design provides thermal deformation buffer on the one hand, and greatly increases the cross-sectional area of ​​the heat conduction path on the other hand, efficiently "transferring" the heat away from the door. The heat captured by the corrugated heat-conducting plate 202 heats the air in each sub-chamber 200a. The hot air density decreases and rises, flowing out from the micro ventilation holes 203 at the top of the sub-chamber, while the outside air is replenished from the micro ventilation holes 203 at the bottom. Thus, a small, self-driven "chimney effect" convection duct is formed in each independent sub-chamber.

[0038] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A heat dissipation structure for an electricity metering box, characterized in that: The enclosure includes a housing (100), with main rainproof vents (101) on both sides of the housing (100). The front of the housing (100) is equipped with an openable door (200), with a heat insulation board (201) laid on the inside of the door (200). A corrugated heat-conducting plate (202) is installed between the heat insulation board (201) and the door (200), forming a heat insulation cavity (200a). Miniature rainproof vents (203) are also opened on both sides of the door (200), which are connected to the heat insulation cavity (200a).

2. The heat dissipation structure of the power metering box as described in claim 1, characterized in that: The ventilation hole (203) of the miniature rain cover has the same shape as the ventilation hole (101) of the main rain cover.

3. The heat dissipation structure of the power metering box as described in claim 1, characterized in that: The two ends of the corrugated heat-conducting plate (202) are in contact with the box door (200) and the heat insulation plate (201) respectively, and divide the heat insulation cavity (200a) into multiple sub-cavities.

4. The heat dissipation structure of the power metering box as described in claim 3, characterized in that: Each of the sub-chambers is connected to a pair of miniature rainproof vents (203).

5. The heat dissipation structure of the power metering box as described in claim 3, characterized in that: The surface of the corrugated heat-conducting plate (202) of each of the sub-chambers is provided with heat dissipation fins (202a) along the convection direction of the micro rainproof vent (203).

6. The heat dissipation structure of the power metering box as described in claim 1, characterized in that: The back of the box (100) is provided with a bracket (102), and the box door (200) is provided with several reserved windows (204).

7. The heat dissipation structure of the power metering box as described in claim 6, characterized in that: A window insulation structure (205) is provided at the reserved window (204). The window insulation structure (205) includes a binding frame (205a), a sliding strip (205b), a baffle (205c), and a push plate (205e). The binding frame (205a) is located inside the box door (200), the sliding strip (205b) is located outside the box door (200), the baffle (205c) is slidably provided on the sliding strip (205b), and the push plate (205e) is provided on the baffle (205c).

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