CN204190231U - Batch meter ventilating mechanisms and there is the batch meter of this ventilating mechanisms - Google Patents

Abstract

The utility model discloses a ventilation mechanism for a metering box and a metering box with the ventilation mechanism. The ventilation mechanism includes a ventilation hole and a plurality of dust-proof plates arranged side by side along the length direction of the ventilation holes. The dust-proof plates are perpendicular to the length direction of the ventilation holes. Covered on the ventilation hole, the two ends of the dust-proof plate are bent to form an arc-shaped section, the center of the arc-shaped section faces the ventilation hole, and the lower ends of the two arc-shaped sections of the dust-proof plate are respectively fixed on both sides of the ventilation hole, two adjacent A gap is arranged between the dust-proof plates, and a baffle is arranged on the gap in the ventilation hole. When using the ventilation mechanism, there is no need to use wire mesh in the metering box, which simplifies the structure in the metering box while ensuring the heat dissipation function and dust-proof and sundry-proof function of the box body, and saves manufacturing costs; the metering box of the utility model will be ventilated The mechanism is arranged on the top and bottom of the box body, which has a good heat dissipation effect; there are shrouds around the box cover to block the ventilation mechanism, so that the ventilation mechanism is hidden.

Description

Metering box ventilation mechanism and metering box with the ventilation mechanism

technical field

The utility model relates to the field of power transmission and distribution equipment, in particular to a metering box ventilation mechanism and a metering box with the ventilation mechanism.

Background technique

The metering box is a low-voltage power distribution device composed of switchgear, measuring instruments, protective appliances and auxiliary equipment assembled in a closed or semi-closed metal cabinet or on a screen width according to the requirements of electrical wiring. It is often used in various power generation, distribution and substations. middle. The metering box is generally installed outdoors, and it usually integrates a large number of electrical component modules and various discrete electronic components with high heat generation. Once the temperature inside the metering box is too high, it will affect the control accuracy and stability, and even cause the electrical components to burn out, causing Unexpected shutdown, affecting power supply.

Therefore, in order to ensure the normal operation of the electrical components inside the metering box, it is usually necessary to arrange a heat dissipation mechanism on the metering box. The heat dissipation mechanism in the prior art is generally a heat dissipation window, which generally consists of a plurality of baffles. The baffles are generally inclined downwards to ventilate and dissipate heat and to prevent rain. They are generally arranged on the outer wall of the middle part of the metering box. It has the following disadvantages:

1. The hot air that radiates outward in the metering box is easily blocked by the baffle, and cannot be dissipated in time, which affects the heat dissipation effect. The radiation from the heat dissipation window in the middle makes the temperature of the top of the metering box higher, and the water vapor is easy to form in the box;

2. Wire mesh must be installed in the heat dissipation window, which has a complicated structure and high cost.

Utility model content

The technical problem to be solved by the utility model is to provide a simple-structured, low-cost metering box ventilation mechanism and a metering box with the ventilation mechanism. The metering box adopts the ventilation mechanism and has good heat dissipation.

The technical solution adopted by the utility model to solve the above problems is:

The ventilation mechanism of the metering box includes a strip-shaped ventilation hole and a plurality of dust-proof plates arranged side by side along the length direction of the ventilation hole. , the two ends of the dust-proof board are bent to form an arc section, the center of the arc-shaped section faces the ventilation hole, and the lower ends of the two arc-shaped sections of the dust-proof board are respectively fixed on both sides of the ventilation hole, between two adjacent dust-proof boards There is a gap, and a strip-shaped baffle with the same width as the gap is arranged in the ventilation hole, and the two ends of the baffle are respectively connected to the two side walls of the ventilation hole.

Preferably, the width of the dust-proof board is between 0.8cm-1.2cm, and the width of the gap between two adjacent dust-proof boards is between 0.3cm-0.6cm.

As a further improvement of the utility model, the number of the ventilation holes is multiple, and the multiple ventilation holes are arranged in parallel, and each ventilation hole is provided with a plurality of dustproof plates and baffles side by side.

Further, the ventilation holes are rectangular long holes, and the dust-proof plate and the baffle are both in the shape of rectangular long strips.

Further, the dustproof plate is bent into an arc along the length direction.

Further, the ventilation holes are opened horizontally, the dust-proof plates are arranged side by side along the horizontal direction, and the lower ends of the two arc-shaped segments of the dust-proof plates are respectively fixed on the upper and lower sides of the ventilation holes.

Further, the ventilation holes are opened along the vertical direction, the dust-proof plates are arranged side by side along the vertical direction, and the lower ends of the two arc-shaped segments of the dust-proof plates are respectively fixed on the left and right sides of the ventilation holes.

The metering box with this ventilation mechanism includes a box body, a box cover arranged at the top of the box body, and a bottom plate arranged at the bottom of the box body. The box body is composed of side panels and door frames, and the upper part of the side panels and door frames is close to the box cover. Ventilation mechanism is arranged on the place and the bottom plate, and the ventilation mechanism is any one of the metering box ventilation mechanism in the above scheme; The upper end of the coaming plate is sealed and connected with the top plate, and the height of the coaming plate is greater than the distance from the lower end of the lowermost dustproof plate to the top plate; there is a gap between the coaming plate and the box body.

Preferably, the width of the gap between the enclosure and the box is not less than 3cm.

Preferably, the box body is in the shape of a cuboid or a cube, the top plate is a rectangular plate, and the surrounding plate is a long rectangular plate.

In summary, the beneficial effects of the utility model are:

1. In the plane of the ventilation mechanism of the present invention, the projection of the baffle plate and the dust-proof plate completely blocks the ventilation hole to prevent dust and sundries from entering the box, and the dust-proof plate protrudes from the plane where the ventilation hole is located, so that There is a certain gap between the dust-proof board and the ventilation hole, and between the dust-proof board and the partition, so that the hot air in the box can be emitted from the gap on the side of the dust-proof board. Use wire mesh to simplify the structure in the metering box while ensuring the heat dissipation function of the box body and the dust-proof and sundry-proof function, saving manufacturing costs;

2. The metering box of the present utility model changes the conventional design of setting the ventilation hole in the middle of the box body in the prior art, and sets the ventilation mechanism at the top and bottom of the box body, so that the hot air with a higher temperature in the box body flows from the top of the box body. Dissipated, the ventilation mechanism at the bottom of the box can be used for conventional heat dissipation, and can also pass in cooling air for heat dissipation when necessary, which has a good heat dissipation effect;

3. Part of the ventilation mechanism of the utility model is set at the bottom of the box body, and the other part of the ventilation mechanism is set at the top of the box body, and is blocked by the coaming board of the box cover, so it is not easy to be found, and it can prevent people from inserting sundries and being destroyed by people ;

4. The utility model has the advantages of simple and compact structure, convenient use and low cost.

Description of drawings

Fig. 1 is the structural representation of metering box ventilation mechanism of the present utility model;

Fig. 2 is the front view of metering box ventilation mechanism;

Fig. 3 is the front view of the ventilation mechanism of the metering box after the dustproof plate is removed;

Fig. 4 is the structural representation of metering box of the present utility model;

Fig. 5 is a schematic diagram of the distance between the enclosure and the box body of the metering box of the present invention.

Marks and corresponding component names in the attached drawings:

1-box; 11-side panel; 12-door frame; 2-cover; 22-top; 21-coaming; 3-bottom; 4-ventilation hole; bezel.

Detailed ways

The utility model will be further described in detail below in conjunction with the embodiments and accompanying drawings, but the implementation of the utility model is not limited thereto.

Example 1:

As shown in Figures 1 to 3, the metering box ventilation mechanism includes a ventilation hole 4 and a dustproof plate 5, the ventilation hole 4 is in the shape of a rectangular strip, and the dustproof plate 5 is also in the shape of a rectangular strip, but the dustproof The length of the plate 5 is greater than the width of the vent hole 4; the vent hole 4 is covered with a plurality of dust-proof plates 5 side by side along the length direction of the vent hole 4, and these dust-proof plates 5 are evenly arranged along the length direction of the vent hole; 5 is set perpendicular to the length direction of the ventilation hole 4, that is, the length direction of the dustproof plate 5 is consistent with the width direction of the ventilation hole 4, and the two ends of the dustproof plate 5 are bent to form an arc segment, and the center of the arc segment faces the ventilation hole 4, The lower ends of these two arc sections are respectively fixed on both sides of the vent 4, so that the dustproof plate 5 protrudes from the plane where the vent 4 is located, and has a certain distance from the vent 4, so that the hot air in the casing 1 can Through the space between the dust-proof plate 5 and the ventilation hole 4, the radiation is emitted from the side of the dust-proof plate 5 to achieve the effect of heat dissipation. There is a gap between two adjacent dust-proof plates 5, and a strip-shaped baffle 7 with the same width as the gap is provided in the ventilation hole 4, and the two ends of the baffle 7 are respectively connected to the ventilation holes. 4, so that on the plane where the ventilation hole 4 is located, the projection of the baffle plate 7 and the dustproof plate 5 completely blocks the ventilation hole, preventing dust and foreign matter from entering the casing from the ventilation hole 4.

Ventilation holes 4 are generally set on the side of the box body 1 of the metering box, and the direction of the ventilation holes 4 is generally set horizontally or along the vertical direction:

Ventilation holes 4 are opened horizontally, which means that the length direction of the ventilation holes 4 is transverse (horizontal direction). At this time, a plurality of dust-proof plates 5 are arranged side by side along the horizontal direction, and the lower ends of the two arc-shaped sections of the dust-proof plates 5 are respectively fixed on the ventilation holes. On the upper and lower sides of the hole 4, the two ends of the baffle plate 7 are respectively connected to the upper and lower side walls of the ventilation hole 4;

Ventilation holes 4 are provided along the vertical direction, which means that the length direction of the ventilation holes 4 is the vertical direction. At this time, a plurality of dust-proof plates 5 are arranged side by side along the vertical direction, and the lower ends of the two arc-shaped sections of the dust-proof plates 5 are respectively fixed. On the left and right sides of the ventilation hole 4 , two ends of the baffle plate 7 are respectively connected to the left and right side walls of the ventilation hole 4 .

In practical applications, there may be two or more ventilation holes 4. When there is more than one ventilation hole 4, these ventilation holes 4 are arranged in parallel, and each ventilation hole 1 is provided with a plurality of dust-proof plates 5 and baffles side by side. plate 7.

In this embodiment, the ventilation hole 4 is mainly used for ventilation and heat dissipation of the metering box, and is a channel for heat exchange between the air in the metering box and the outside air. Since the ventilation hole 4 is relatively large, in order to prevent dust and other sundries from entering the metering box, On the air vent 4, a row of dust-proof plates 5 has been set up, and there is a gap between adjacent dust-proof plates 5. In the air vent 4, a baffle plate is set at the position where the gap is positively projected on the plane where the air vent is located to block the dust and debris, and the dustproof plate 5 protrudes from the plane where the ventilation hole 4 is located, so there is a gap between the dustproof plate 5 and the baffle plate 7, and the hot air in the box can pass through the gap between the dustproof plate 5 and the baffle plate 7 This can not only ensure good heat exchange of the metering box, but also effectively prevent dust and sundries.

The width of the dust-proof board 5 is between 0.8cm-1.2cm, and the width of the gap between adjacent dust-proof boards 5 is between 0.3cm-0.6cm to ensure heat dissipation.

As shown in Figure 4, the metering box with a hidden ventilation mechanism includes a box body 1, a box cover 2, a bottom plate 3, and a box door 6, wherein:

The box body 1 is in the shape of a cuboid or a cube, surrounded by three side panels 11 and a door frame 12, and all side panels 11 and the top of the door frame 12 are provided with a ventilation mechanism near the box cover 2. The ventilation mechanism is The above-mentioned metering box ventilation mechanism.

Described box cover 2 is made of top plate 22 and the coaming plate 21 that is fixed on top plate 22 all around, and top plate 22 is rectangular plate, and coaming plate 21 is rectangular strip plate: top plate 22 is fixed on casing 1 top, and coaming plate 21 is positioned at top plate 22 The bottom is perpendicular to the top plate 22, and the upper end of the coaming plate 21 is sealed and connected with the top plate 22. The height of the coaming plate 21 is greater than the distance from the lower end of the dustproof plate 5 at the lowermost end of the ventilation mechanism to the top plate 22. Like this, in the horizontal direction, The coaming plate 21 has blocked the ventilation mechanism, and people cannot see the ventilation mechanism at all when looking at the metering box 1 in the horizontal direction, so that the ventilation mechanism has a certain concealment;

As shown in Figure 5, there is a gap between the enclosure 21 and the box body 1, the width d of the gap is not less than 3cm, so that the distance between the enclosure 21 and the side panel 11 or door frame 12 facing it is not less than 3cm , Reserve a certain heat dissipation channel, so that the enclosure 21 does not affect the heat dissipation of the ventilation hole 4 of the ventilation mechanism when it shields the ventilation mechanism.

The bottom plate 3 is fixed on the bottom of the box body 1, and the bottom plate 3 is provided with a ventilation mechanism. The ventilation mechanism can be used as a conventional heat dissipation hole, or can temporarily pass in cooling air to dissipate heat in the box body 1.

Tests have proved that in the same environment, the existing common metering box (ventilation holes are set in the middle of the box) will form water vapor in the box after 5 days of use, while the metering box in this embodiment has no water vapor within 10 days of use. Its cooling effect is better.

In this embodiment, the metering box 1 can also be composed of two side plates 11 and two door frames 12, the two side plates 11 are opposite, and the two door frames 12 are opposite, forming a metering box with double doors on the opposite side.

The above are only preferred implementations of the utility model, and the scope of protection of the utility model is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the utility model all belong to the scope of protection of the utility model. It should be pointed out that for those of ordinary skill in the art, some improvements and modifications without departing from the principle of the utility model should be regarded as the protection scope of the utility model.

Claims (9)

1. The ventilation mechanism of the metering box is characterized in that it includes a strip-shaped ventilation hole (4) and a plurality of dustproof plates (5) arranged side by side along the length direction of the ventilation hole (4), and the dustproof plate (5) It is in the shape of a long strip, which is perpendicular to the length direction of the ventilation hole (4) and covers the ventilation hole (4). ), and the lower ends of the two arc-shaped sections of the dust-proof plate (5) are respectively fixed on both sides of the ventilation hole (4), and there is a gap between two adjacent dust-proof plates (5), and the ventilation hole (4) A strip-shaped baffle (7) with the same width as the gap is arranged inside the gap, and the two ends of the baffle (7) are respectively connected to the two side walls of the ventilation hole (4). 2. The metering box ventilation mechanism according to claim 1, characterized in that, the width of the dust-proof board (5) is between 0.8cm-1.2cm, and the width between two adjacent dust-proof boards (5) The gap width is between 0.3cm-0.6cm. 3. The ventilation mechanism of the metering box according to claim 1, characterized in that the number of the ventilation holes (4) is multiple, the multiple ventilation holes (4) are arranged in parallel, and each ventilation hole (1) is arranged side by side A plurality of dustproof plates (5) and baffles (7) are provided. 4. The metering box ventilation mechanism according to any one of claims 1, characterized in that, the ventilation hole (4) is a rectangular long hole, and the dustproof plate (5) and the baffle (7) are both rectangular Long strip. 5. The metering box ventilation mechanism according to any one of claims 1 to 4, characterized in that, the ventilation holes (4) are opened horizontally, the dust-proof plates (5) are arranged side by side along the horizontal direction, and the dust-proof plates ( The lower ends of the two arc segments of 5) are respectively fixed on the upper and lower sides of the ventilation hole (4). 6. The metering box ventilation mechanism according to any one of claims 1 to 4, characterized in that, the ventilation holes (4) are opened along the vertical direction, and the dust-proof plates (5) are arranged side by side along the vertical direction, The lower ends of the two arc-shaped segments of the dustproof plate (5) are respectively fixed on the left and right sides of the ventilation hole (4). 7. A metering box with a ventilation mechanism, including a box body (1), a box cover (2) arranged at the top of the box body (1) and a bottom plate (3) arranged at the bottom of the box body (1), the box body ( 1) Consists of side panels (11) and door frames (12), characterized in that, The side plate (11) and the upper part of the door frame (12) close to the box cover (2) and the bottom plate (3) are provided with a ventilation mechanism, and the ventilation mechanism is the one described in any one of claims 1 to 4 Metering box ventilation mechanism; Described case cover (2) is made of top board (22) and the coaming board (21) that is fixed on top board (22) all around, and coaming board (21) is arranged perpendicular to top board (22), and coaming board (21) upper end and top board (22) Sealed connection, the height of the coaming plate (21) is greater than the distance from the lower end of the lowermost dustproof plate (5) to the top plate (22); A gap is provided between the enclosure (21) and the box body (1). 8. The metering box with a ventilation mechanism according to claim 7, characterized in that the width of the gap between the enclosure (21) and the box body (1) is not less than 3cm. 9. The metering box with a ventilation mechanism according to claim 7, characterized in that, the box body (1) is in the shape of a cuboid or a cube, the top plate (22) is a rectangular plate, and the surrounding plate (21 ) is a rectangular strip.