Electric energy metering box

Abstract

The utility model discloses an electric energy metering box, which comprises a box body, a mounting cavity is arranged in the box body, a plurality of ventilation openings are arranged on two sides of the outer wall of the box body, the ventilation openings are communicated with the mounting cavity, and a dustproof device is arranged on the inner wall of the mounting cavity at a position opposite to the ventilation openings. The dustproof device comprises a fixing seat and a dustproof net, the fixing seat is fixedly mounted on the inner wall of the mounting cavity, a through opening is formed in the middle of the fixing seat and opposite to the ventilation opening, and the dustproof net is movably connected to the position, located at the through opening, in the fixing seat. In combination with the structural design of the utility model, the dustproof device is arranged, so that when the box body dissipates heat through the ventilation opening, the dustproof device can play a dustproof role in the interior of the mounting cavity, thereby ensuring the service life of the meter and the visual definition of the visual window.

Description

Technical Field

[0001] The utility model relates to the technical field of metering boxes, in particular to an electric energy metering box. Background Art

[0002] The electric energy meter box is a necessary device before the power line enters the household. Especially in recent years, with the development of the economy, the acceleration of urbanization construction and the acceleration of industrial upgrading, the demand for electricity has continued to increase. The country has increased its investment in power infrastructure including rural power grid transformation and urban transformation. Therefore, the electric energy meter box has broad development space as a terminal meter of power products. The electric energy meter box generally refers to a box for installing an electric meter. The box generally integrates an electric energy meter, voltage for measurement, current transformer and secondary circuit, etc., which is used for the total circuit distribution of all users. The electric energy meter box can be divided into high-voltage electric energy meter box and low-voltage electric energy meter box according to the voltage, and can be divided into indoor and outdoor electric energy meter boxes according to the use.

[0003] However, in order to solve the heat dissipation problem inside the existing electricity meter box, ventilation holes are usually opened on both sides of the box body, so that the air carrying dust can easily enter the box body through the ventilation holes between the two. The air entering the box will first contaminate the meter, thereby shortening the service life of the meter; secondly, it will contaminate the visual window of the box body, making it difficult for the operator to see the meter reading; in addition, when dust enters the meter, it will affect the accuracy of its measurement, making it impossible to measure accurately. Summary of the invention

[0004] The purpose of the utility model is to provide an electric energy meter box to solve the problem of heat dissipation inside the electric energy meter box mentioned in the above background technology. In order to solve the problem of heat dissipation inside the electric energy meter box, the existing electric energy meter boxes usually have ventilation holes on both sides of the box body, so that the air carrying dust can easily enter the box body through the ventilation holes between the two. The air entering the box body will first contaminate the meter, thereby shortening the service life of the meter; secondly, it will contaminate the visual window of the box body, making it difficult for the operator to see the reading of the meter; in addition, when dust enters the meter, it will affect the accuracy of its measurement and make it impossible to measure accurately.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electric energy meter box, comprising a box body, an installation cavity is opened in the box body, a plurality of ventilation holes are opened on both sides of the outer wall of the box body, and the ventilation holes are communicated with the installation cavity, a dustproof device is provided on the inner wall of the installation cavity at a position relative to the ventilation hole, the dustproof device comprises a fixed seat and a dustproof net, the fixed seat is fixedly installed on the inner wall of the installation cavity, a through opening is provided in the middle part of the fixed seat at a position relative to the ventilation hole, and a dustproof net is movably connected to the through opening in the fixed seat.

[0006] Preferably, limiting blocks are symmetrically and fixedly installed above and below the through - opening on the surface of the fixed seat, and sliding grooves are formed in the limiting blocks.

[0007] Preferably, sliding blocks are fixedly connected to both sides of the dust - proof net, and the sliding blocks are slidably connected in the sliding grooves.

[0008] Preferably, the sliding blocks are adapted to the sliding grooves.

[0009] Preferably, the limiting blocks are designed with a structure that is higher at the front and lower at the back on the surface of the fixed seat.

[0010] Preferably, a sealing strip is fixedly installed at the joint where one end surface of the dust - proof net fits the through - opening, and a handle block is fixedly connected to the middle of the front end of the other end surface of the dust - proof net.

[0011] Preferably, a door body is fixedly connected to the front end surface of the box body through a hinge, and a visual window is installed on the surface of the door body.

[0012] Beneficial Effects

[0013] Compared with the existing technology, the beneficial effects of the present utility model are as follows:

[0014] Combined with the structural design of the present utility model, by setting up the dust - proof device, when the box body dissipates heat through the ventilation opening, the dust - proof device can play a role in dust - proofing the interior of its installation cavity, thereby ensuring the service life of the meter and the visual clarity of the visual window. Brief Description of the Drawings

[0015] Figure 1 is the overall structural schematic diagram of the present utility model;

[0016] Figure 2 is the structural schematic diagram of the inner wall of the box body of the present utility model;

[0017] Figure 3 is the structural schematic diagram of the dust - proof device of the present utility model.

[0018] 1. Box body; 2. Installation cavity; 3. Ventilation opening; 4. Dust - proof device; 5. Door body; 6. Visual window; 41. Fixed seat; 42. Limiting block; 43. Through - opening; 44. Sliding groove; 45. Dust - proof net; 46. Handle block; 47. Sliding block; 48. Sealing strip;

[0019] 51. Installation opening. Detailed Embodiment

[0020] The technical solution of the present utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative work shall fall within the protection scope of the present utility model.

[0021] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", "vertical", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] As Figures 1-3 It is a schematic structural diagram of an electric energy metering box in a preferred embodiment of the present utility model. In this embodiment, an electric energy metering box includes a box body 1. An installation cavity 2 is provided in the box body 1, and a plurality of ventilation openings 3 are provided on both sides of the outer wall of the box body 1 at equal intervals. The ventilation openings 3 communicate with the inside of the installation cavity 2. A dust-proof device 4 is provided at a position on the inner wall of the installation cavity 2 opposite to the ventilation openings 3 to achieve the dust-proof function through the dust-proof device 4. The dust-proof device 4 includes a fixed seat 41 and a dust-proof net 45. The fixed seat 41 is fixedly installed on the inner wall of the installation cavity 2. A through opening 43 is provided in the middle of the fixed seat 41 at a position opposite to the ventilation openings 3. A dust-proof net 45 is movably connected to the through opening 43 in the fixed seat 41 to achieve the dust-proof effect through the dust-proof net 45.

[0023] In this embodiment, limiting blocks 42 are symmetrically and fixedly installed on the surface of the fixed seat 41 above and below the through opening 43. A sliding groove 44 is provided in the limiting blocks 42. Sliders 47 are fixedly connected to both sides of the dust-proof net 45, and the sliders 47 are slidably connected to the sliding grooves 44. The above structural design realizes the replacement effect of the dust-proof net 45.

[0024] In this embodiment, the sliders 47 are adapted to the sliding grooves 44. This structural design reduces the gap between the sliders 47 and the sliding grooves 44 and provides a better sliding fit.

[0025] In this embodiment, the limiting blocks 42 are designed with a front-high and rear-low structure on the surface of the fixed seat 41. This structural design is to prevent the dust-proof net 45 from being connected through the sliders 47 and the sliding grooves 44, and to prevent the dust-proof net 45 from sliding out of the sliding grooves 44 during use, resulting in the box body 1 losing the dust-proof effect and affecting the service life.

[0026] In this embodiment, a sealing strip 48 is fixedly installed at the joint where one end surface of the dust-proof net 45 is attached to the through port 43, which can effectively prevent dust and other impurities from entering the interior of the installation cavity 2 through the gap between the sealing strip 48 and the through port 43. At the same time, a handle block 46 is fixedly connected to the middle of the front end of the other end surface of the dust-proof net 45. Through the handle block 46, it is convenient to pull out the dust-proof net 45 from the sliding groove 44. According to the actual use environment, the corresponding dust-proof net 45 can be selected, which plays the role of facilitating the replacement of the dust-proof net 45.

[0027] In this embodiment, a door body 5 is fixedly connected to the front end surface of the box body 1 through a hinge. An installation opening 51 is provided on the surface of the door body 5, and a viewing window 6 is installed in the installation opening 51. With this structural design, an observer can observe the reading of the measuring meter through the viewing window 6 without opening the door body 5. At the same time, the surface of the viewing window 6 is coated with a nano transparent heat-insulating glass coating, which has the function of heat insulation and can prevent the temperature inside the installation cavity 2 from rising possibly due to direct sunlight.

[0028] The above content further elaborates on the present utility model in combination with specific implementation manners. It cannot be determined that the specific implementation of the present utility model is only limited to these descriptions. For those of ordinary skill in the technical field to which the present utility model belongs, without departing from the concept of the present utility model, several simple deductions or replacements can still be made, which should all be regarded as belonging to the protection scope determined by the claims submitted for the present utility model.

Claims

1. An electric energy metering box, comprising a box body (1), an installation cavity (2) is formed in the box body (1), a plurality of ventilation openings (3) are formed in both sides of the outer wall of the box body (1) equally, and the ventilation openings (3) are communicated with the installation cavity (2), and it is characterized in that: A dust-proof device (4) is provided at a position on the inner wall of the installation cavity (2) opposite to the ventilation opening (3). The dust-proof device (4) includes a fixed seat (41) and a dust-proof net (45). The fixed seat (41) is fixedly installed on the inner wall of the installation cavity (2). A through opening (43) is provided at a position in the middle of the fixed seat (41) opposite to the ventilation opening (3). A dust-proof net (45) is movably connected to the fixed seat (41) at the through opening (43).

2. The electricity metering box according to claim 1, characterized in that: Limit blocks (42) are symmetrically and fixedly installed on the surface of the fixed seat (41) above and below the through opening (43). A sliding groove (44) is formed in the limit block (42).

3. The electricity metering box according to claim 1, characterized in that: Sliders (47) are fixedly connected to both sides of the dust-proof net (45), and the sliders (47) are slidably connected to the sliding grooves (44).

4. The electric energy metering box according to claim 3, characterized in that: The slider (47) is adapted to the sliding groove (44).

5. The electric energy metering box according to claim 2, characterized in that: The limit block (42) has a structure design with a higher front and a lower rear on the surface of the fixed seat (41).

6. The electric energy metering box according to claim 3, characterized in that: A sealing strip (48) is fixedly installed at the joint where one end surface of the dust-proof net (45) fits the through opening (43). A handle block (46) is fixedly connected to the middle of the front end of the other end surface of the dust-proof net (45).

7. The electric energy metering box according to claim 1, characterized in that: A door body (5) is fixedly connected to the front surface of the box body (1) through a hinge. An installation opening (51) is formed in the surface of the door body (5), and a viewing window (6) is installed in the installation opening (51).

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