Electric energy metering box with dustproof structure

Abstract

The utility model relates to a metering box, in particular to an electric energy metering box with a dustproof structure. The electric energy metering box is composed of a box body, a box cover and dustproof covers, the box body is provided with the box cover, and the dustproof covers are uniformly distributed on the box body; shielding grooves are uniformly distributed in the box body outside the dustproof cover; and communicating grooves are formed in the tops of the shielding grooves. According to the electric energy metering box, external air needs to flow upwards and then inwards; water drops and dust settle downwards under the action of self gravity in the shielding groove, the water drops and the dust are not prone to entering the box body, and compared with the mode that a mixture of the water drops, the dust and the air directly enters the box body, part of the dust and the water drops can be shielded, so that the dust cover is matched to greatly reduce the amount of the dust and the water drops entering the box body, and the dustproof effect is effectively improved. And the internal operation environment of the electric energy metering box is kept clean. The problem that water and dust of an existing dustproof heat dissipation device can directly enter an electric meter box, and consequently the dustproof effect is poor is solved.

Description

Technical Field

[0001] The utility model relates to a metering box, in particular to an electric energy metering box with a dustproof structure. Background Art

[0002] The electric energy meter box is one of the important parts for installing the electric meter, which has the function of protecting and preventing theft of the electric meter. The electric meter will generate heat due to the current passing through it during operation, so the electric energy meter box also needs to have a heat dissipation function. The patent application with announcement number CN205430831U discloses a new dust-proof heat dissipation device for the electric meter box, which is a dust cover installed on the inner side of the louver opening of the electric meter box, and the dust cover is provided with a plurality of heat dissipation holes. It can effectively prevent dust or other debris from entering the electric meter box, and it has a simple structure and is easy to disassemble and clean.

[0003] In addition to the heat dissipation function, the above device also has a dustproof function through the dustproof cover. However, water and dust can still directly enter the meter box through the shutter opening and the dustproof cover of the above device, resulting in poor dustproof effect of the above device. Therefore, it is necessary to improve it to solve the above problem. Summary of the invention

[0004] The purpose of the utility model is to provide an electric energy metering box with a dustproof structure that is simple in structure and can effectively increase the dustproof ability to solve the problem that water and dust can directly enter the electric meter box in the existing dustproof heat dissipation device, resulting in poor dustproof effect.

[0005] The technical solution of the utility model is:

[0006] An electric energy metering box with a dustproof structure, which consists of a box body, a box cover and a dust cover which are respectively formed by injection molding. The box cover is installed on the box body by a hinge, and the dust covers are evenly distributed on the inner walls on both sides of the box body; it is characterized in that: "C"-shaped shielding grooves are evenly distributed on the box body outside the dust cover, and a connecting groove is provided on the top of the shielding groove.

[0007] The dust cover is provided with a filter hole, which is in a cone shape, and the diameter of the filter hole port on one side of the shielding slot is larger than the diameter of the filter hole port inside the box body.

[0008] An electric meter operation window is arranged on the upper end of the box cover, and a switch operation window is arranged on the box cover below the electric meter operation window.

[0009] The switch operation window and the meter operation window are respectively provided with sealing cover plates made of transparent material, and the top ends of the sealing cover plates are respectively movably connected to the box cover through pin shafts.

[0010] A switch assembly strip is arranged at the middle and lower part of the inner side of the box body, and a plurality of wire harness rings are arranged on the box body below the switch assembly strip.

[0011] The beneficial effects of the utility model are:

[0012] The electric energy meter box with dustproof structure cooperates with the shielding slot and the connecting slot so that the external air needs to flow upwards first and then inwards before entering the box; because the density of water droplets and dust is greater than the density of air, when the mixture of water droplets, dust and air enters the box, it settles downward under the gravity of the water droplets and dust at the shielding slot, and it is not easy for water droplets and dust to enter the box. Compared with the mixture of water droplets, dust and air directly entering the box, it can shield a part of the dust and water droplets, so that the dust and water droplets entering the box can be greatly reduced in combination with the dust cover, effectively improving the dustproof effect and keeping the internal operating environment of the electric energy meter box clean. The problem of poor dustproof effect caused by the water and dust directly entering the meter box of the existing dustproof heat dissipation device is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a cross-sectional schematic diagram of the box body of the utility model;

[0015] Figure 3 yes Figure 2 The enlarged schematic diagram of point A in the middle;

[0016] Figure 4 It is a distribution diagram of the dust cover of the utility model;

[0017] Figure 5 It is a structural schematic diagram of the box body of the utility model;

[0018] Figure 6 yes Figure 5 The enlarged schematic diagram of point B in the middle;

[0019] Figure 7 It is a schematic diagram of the structure of the dust cover of the utility model;

[0020] Figure 8 It is a structural schematic diagram of the box cover of the utility model.

[0021] In the figure: 1. box body, 2. box cover, 3. dust cover, 4. shielding slot, 5. connecting slot, 6. filter hole, 7. meter operation window, 8. switch operation window, 9. sealing cover plate, 10. switch assembly strip, 11. cable tie ring. DETAILED DESCRIPTION

[0022] The electric energy meter box with dustproof structure is composed of a box body 1, a box cover 2 and a dust cover 3 respectively formed by injection molding. The box cover 2 is installed on the box body 1 through a hinge, and the dust covers 3 are evenly distributed on the inner walls of both sides of the box body 1, so as to filter dust and water droplets through the dust covers 3, thereby achieving the purpose of dustproof and waterproof. "C"-shaped shielding grooves 4 are evenly distributed on the box body 1 outside the dust covers 3, and a connecting groove 5 is provided on the top of the shielding grooves 4. Since the shielding slot 4 is in a "C" shape and the connecting slot 5 is arranged at the top of the shielding slot 4, when the airflow passes through the shielding slot 4 and the connecting slot 5, the airflow needs to first flow upward from the port of the shielding slot 4 to the connecting slot 5, and then flow from the connecting slot 5 into the box body 1. The airflow will have an obvious rising process. During the rising process of the airflow, the density of the dust and water droplets in the airflow is greater than the density of the air. The dust and water droplets will sink relative to the air. During the rising process of the airflow, the dust and water droplets will settle downward, thereby greatly reducing the amount of dust and water droplets entering the connecting slot 5. Therefore, compared with the mixture of water droplets, dust, and air directly entering the box body, the combination of the shielding slot 4, the connecting slot 5, and the dust cover 3 can effectively improve the dustproof ability and keep the internal operating environment of the electric energy meter box clean. The shielding slot 4, the connecting slot 5, and the dust cover 3 allow gas exchange between the inside and outside of the box body 1, thereby dissipating heat.

[0023] The dust cover 3 is provided with a filter hole 6, so as to filter the water droplets and dust in the airflow entering between the housing 1 and the dust cover 3 through the shielding slot 4 and the connecting slot 5, and further reduce the content of water droplets and dust in the airflow entering the housing 1. The filter hole 6 is conical, and the port diameter of the filter hole 6 on the side of the shielding slot 4 is larger than the port diameter of the filter hole 6 on the inner side of the housing 1. Since the filter hole 6 is conical, the cross section of the filter hole is inclined, and the dust and water droplets accumulated in the filter hole 6 move downward along the inclined surface of the inner wall of the filter hole 6 under the action of their own gravity, so that it is not easy to accumulate in the filter hole 6, thereby making the filter hole 6 not easy to be blocked, and maintaining continuous filtering ability.

[0024] An electric meter operation window 7 is provided at the upper end of the box cover 2, so that the electric meter installed in the box body 1 can be operated and observed through the electric meter operation window 7, such as resetting the electric meter and checking the electric meter reading. A switch operation window 8 is provided on the box cover 2 below the electric meter operation window 7, so that the power switch can be operated through the switch operation window 8, such as disconnecting the power switch and resetting the power switch. The switch operation window 8 and the electric meter operation window 7 are respectively provided with sealing cover plates 9 made of transparent material, and the top ends of the sealing cover plates 9 are respectively movably connected to the box cover 2 through pins. The function of the sealing cover plate 9 is to seal the electric meter operation window 7 and the switch operation window 8 through the sealing cover plate 9, thereby preventing dust and water droplets from entering the box body 1 through the electric meter operation window 7 and the switch operation window 8.

[0025] A switch assembly strip 10 is provided at the middle and lower part of the inner side of the box body 1, so that the switch (circuit breaker, leakage protector or fuse, etc.) can be clamped through the switch assembly strip 10, so that the switch can be easily assembled. A plurality of cable ties 11 are provided on the box body 1 below the switch assembly strip 10, so that the incoming and outgoing cables can be constrained through the cable ties 11, thereby ensuring the connection and keeping the electric energy meter box tidy.

[0026] The electric energy meter box with dustproof structure cooperates with the shielding slot 4 and the connecting slot 5 so that the external air needs to flow upwards first and then inwards before entering the box body 1; because the density of water droplets and dust is greater than the density of air, when the mixture of water droplets, dust and air enters the box body, it settles downward under the gravity of the water droplets and dust at the shielding slot 4, and it is not easy for water droplets and dust to enter the box body 1. Compared with the mixture of water droplets, dust and air directly entering the box body 1, it can shield a part of the dust and water droplets, so that the dust cover 3 can greatly reduce the amount of dust and water droplets entering the box body 1, effectively improve the dustproof effect, and keep the internal operating environment of the electric energy meter box clean. It solves the problem that water and dust can directly enter the meter box of the existing dustproof heat dissipation device, resulting in poor dustproof effect.

Claims

1. An electric energy metering box with a dustproof structure, comprising a box body (1), a box cover (2) and a dustproof cover (3) respectively formed by injection molding, the box body (1) being provided with a box cover (2) by a hinge, and the inner walls on both sides of the box body (1) being provided with dustproof covers (3) respectively; the characteristics are as follows: "C"-shaped shielding grooves (4) are evenly distributed on the box body (1) outside the dust cover (3), and a connecting groove (5) is arranged at the top of the shielding groove (4).

2. The electric energy meter box with a dustproof structure according to claim 1, characterized in that: The dust cover (3) is provided with a filter hole (6), the filter hole (6) is conical, and the diameter of the filter hole (6) on one side of the shielding slot (4) is larger than the diameter of the filter hole (6) on the inner side of the box body (1).

3. The electric energy meter box with a dustproof structure according to claim 1, characterized in that: An electric meter operating window (7) is provided on the upper end of the box cover (2), and a switch operating window (8) is provided on the box cover (2) below the electric meter operating window (7).

4. The electric energy meter box with a dustproof structure according to claim 3 is characterized in that: The switch operation window (8) and the meter operation window (7) are respectively provided with sealing cover plates (9) made of transparent material, and the top ends of the sealing cover plates (9) are movably connected to the box cover (2) via pins.

5. The electric energy meter box with a dustproof structure according to claim 1, characterized in that: A switch assembly strip (10) is provided at the middle and lower part of the inner side of the box body (1), and a plurality of cable tie rings (11) are provided on the box body (1) below the switch assembly strip (10).

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