CN212571815U - Multi-functional low voltage distribution box with built-in lateral wall waterproof construction - Google Patents

Abstract

The utility model discloses a multifunctional low-voltage distribution box with a built-in side wall waterproof structure, which comprises a box body, wherein the box body is in a cuboid structure and comprises a side wall, a top plate arranged on the upper part of the side wall and a bottom plate arranged on the lower part of the side wall, an air inlet window is arranged on the side wall and consists of a plurality of outer rib plates, an outer air permeable hole is formed in a gap between two adjacent outer rib plates, and the upper edge of the outer air permeable hole extends outwards to form an arc-shaped structure waterproof edge; waterproof board is installed to the window inboard of admitting air, and the waterproof board includes first curb plate and second curb plate, and the second curb plate is provided with two and sets up perpendicularly respectively in the both sides that first curb plate corresponds, and the outer tip of second curb plate is outwards turned over and is turned over in order to form the fixed plate, has seted up ventilative fence on the first curb plate, and this device has and is fit for outdoor type distribution cabinet body, and rain-proof performance is good, and the lateral wall window of admitting air at the cabinet body corresponds installs waterproof part, rain-proof, dustproof and radiating effect preferred.

Description

Multi-functional low voltage distribution box with built-in lateral wall waterproof construction

Technical Field

The utility model belongs to the technical field of the block terminal, concretely relates to multi-functional low voltage distribution box with built-in lateral wall waterproof construction.

Background

The distribution box is a low-voltage distribution device formed by assembling switch equipment, measuring instruments, protective electrical appliances and auxiliary equipment in a closed or semi-closed metal cabinet or on a screen according to the electrical wiring requirement.

The IP protection grade is composed of two numbers, the 1 st number represents the solid protection grade and the grade for preventing the invasion of dust and other foreign matters, the 2 nd number represents the liquid protection grade and the tightness for preventing moisture and water invasion, the larger the number is, the higher the protection grade is, and the IP44 protection grade distribution box is mainly used for feeding, controlling, metering and protecting the 380V low-voltage side of the rural three-phase distribution transformer. The existing distribution box is easy to leak water, and once the internal power facilities are affected with damp, the normal work of the distribution box is affected to cause short circuit, so that the public electric appliances in the range can not be normally used. The existing rural distribution transformer has the following problems: the outdoor rural power grid distribution box runs outdoors due to the working environment, and is often subjected to direct sunlight to generate high temperature, and particularly in summer high-temperature seasons, the air temperature in the box body reaches over 50 ℃; along with the increase of the power load, heavy load and even overload operation of a plurality of transformers and a comprehensive distribution box cause serious heating of electrical components, the service life of the electrical components is influenced, and the electrical components in the distribution box are accelerated to age and have high failure rate; secondly, the rainproof effect of the box body is not very ideal, and water is easy to splash and drip into the box body when the box body is in heavy weather, heavy rain and severe weather, so that the safe operation of electrical components is seriously influenced; and thirdly, if the condensation phenomenon can be generated on the electrical elements in the box body when the temperature difference between day and night is large, the electrical elements are easily burnt due to overhigh humidity in the box body.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that exists on the above-mentioned prior art, provide a multi-functional low voltage distribution box with built-in lateral wall waterproof construction, this device has and is fit for the outdoor type switch board body, and protection etc. reach IP44, and rain proofness can be good, and the lateral wall air inlet window at the cabinet body corresponds installs waterproof part, rain-proof, dustproof and radiating effect preferred.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a multifunctional low-voltage distribution box with a built-in side wall waterproof structure comprises a cabinet body, wherein the cabinet body is of a cuboid structure and comprises side walls, a top plate and a bottom plate, the top plate is arranged on the upper portion of each side wall, the bottom plate is arranged on the lower portion of each side wall, an air inlet window is arranged on each side wall and consists of a plurality of outer rib plates, an outer air through hole is formed in a gap between every two adjacent outer rib plates, and the upper edge of each outer air through hole extends outwards to form an arc-shaped structure waterproof;

the air inlet window is characterized in that waterproof plates are mounted on the inner sides of the air inlet windows and comprise a first side plate and a second side plate, the second side plate is provided with two blocks and is vertically arranged on two corresponding sides of the first side plate respectively, the outer end portion of the second side plate is turned outwards to form a fixed plate, a breathable fence is arranged on the first side plate and consists of a plurality of inner rib plates, inner air holes are formed in gaps between two adjacent inner rib plates, an arc-shaped air channel plate is formed by extending the upper edges of the inner air holes and extends towards the opposite direction of the second side plate, and the inner air holes and the outer air holes are arranged in a staggered mode;

the lower edge of the side wall extends inwards to form a supporting edge, the bottom plate is buckled on the supporting edge and is higher than the supporting edge so as to form a drainage channel between the edge of the bottom plate and the side wall, and a drainage hole is formed on the side of the drainage channel close to the edge of the bottom plate; the drainage channel is located under the waterproof board.

According to the scheme, the bottom plate is further improved, heat dissipation holes are formed in the bottom plate, and more than one layer of dust screen is attached to the upper end faces of the heat dissipation holes; the inside wall laminating of air inlet window is provided with the dust screen more than the one deck.

This scheme of further improvement, the roof lock is in the lateral wall top, and the outside extension in edge of roof is formed with the rain-proof eaves, and the rain-proof eaves outward flange turns over downwards to form the outside clearance, be provided with interior shrouding in the inboard that the roof is located the lateral wall, be formed with the inboard clearance between interior shrouding and the lateral wall, the lateral wall intercommunication is passed through in outside clearance and inboard clearance, all is formed with a plurality of bleeder vents on the ventilative board in outside clearance and inboard clearance bottom.

According to the scheme, the heat radiation fan is mounted on the side wall close to the bottom of the cabinet body, so that high-temperature gas in the cabinet body is discharged.

According to the scheme, the dustproof net is a stainless steel wire net, and the aperture of the stainless steel wire net is smaller than 1 mm.

Advantageous effects

1. The utility model discloses an innovation is fit for the outdoor type distribution cabinet body, and protection etc. reach IP44, and rain proofness can be good, correspond at the lateral wall air inlet window of the cabinet body and install the waterproof board, and the purpose that sets up the waterproof board prevents that the rainwater is too big, and the rainwater can avoid the rainwater directly to spatter to electrical components on if taking place to flow backward to the internal in-process of cabinet to prevent to take place trouble such as electric short circuit accident, the concrete analysis is as follows: the air inlet window is used for introducing external low-temperature air into the cabinet body, the inner wall of the air inlet window is provided with a dustproof net in a fitting manner, so that foreign matters such as insects can be prevented from entering, the waterproof board is arranged in the corresponding air inlet window, when rainwater flows backwards through the air inlet window, the rainwater flows down along the inner walls of the first side board and the second side board and falls into the drainage channel at the periphery of the bottom board due to the blocking of the waterproof board, because the bottom plate is higher than the supporting edge, the rainwater can be drained along the drainage channel and through the drainage hole, and simultaneously, because the ventilating fence is arranged on the first side plate, the waterproof part is communicated up and down, external air flow enters the cabinet body through the air inlet windows on the side walls and then enters the cabinet body through the air permeable fence and the upper and lower through holes, the air inlet and heat dissipation requirements can be met, the guide port in three directions is arranged simultaneously, so that air inflow is guided, and all positions of the box body can be cooled sufficiently.

2. The utility model discloses a roof is formed with the inlet channel of the type of falling U above the lateral wall through the improvement to be provided with the dust screen on one side that inlet channel is located the internal portion of cabinet. An air inlet window is arranged on a bottom plate at the lower part of the cabinet body corresponding to the component, a dust screen is arranged on the upper end face of the air inlet window, and a heat radiation fan is arranged on the side wall, so that an air circulation system which is used for introducing air from the top, the bottom and the side wall and exhausting air through the heat radiation fan is formed, and the heat radiation and the temperature reduction in the cabinet body are facilitated.

Drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an internal structure view of the low-voltage distribution box of the present invention;

fig. 2 is a side view of the low voltage distribution box of the present invention;

FIG. 3 is a structural diagram of the middle bottom plate of the present invention;

fig. 4 is a perspective view of the middle waterproof board of the present invention;

FIG. 5 is a side view of the flashing;

FIG. 6 is a view showing the installation structure of the middle top plate of the present invention;

FIG. 7 is a structural view of the drainage channel of the present invention;

FIG. 8 is an enlarged view taken at A-A of FIG. 7;

FIG. 9 is a schematic diagram of the heat dissipation and condensation removal system of the present invention;

the labels in the figure are: 1. the intelligent heating cabinet comprises a cabinet body, 1-1 parts of a cabinet body, side walls, 111 parts of a supporting edge, 1-2 parts of a top plate, 121 parts of a rainproof eave, 122 parts of an inner sealing plate, 1-3 parts of a bottom plate, 131 parts of a drain hole, 132 parts of a heat dissipation hole, 2 parts of an air inlet window, 2-1 parts of a waterproof edge, 3 parts of a waterproof plate, 3-1 parts of a first side plate, 311 parts of an arc-shaped air channel plate, 3-2 parts of a second side plate, 4 parts of a cooling fan, 5 parts of a molded case circuit breaker, 6 parts of a fuse type isolating switch, 101 parts of a temperature sensor, 102 parts of a humidity sensor, 103 parts of a constant temperature.

Detailed Description

In order to make the technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

As shown in the figure: the embodiment provides a multifunctional low-voltage distribution box with a built-in side wall waterproof structure, which comprises a box body 1, wherein the box body 1 is of a cuboid structure, the box body 1 comprises a side wall 1-1, a top plate 1-2 arranged at the upper part of the side wall 1-1 and a bottom plate 1-3 arranged at the lower part of the side wall 1-1, an air inlet window 2 is arranged on the side wall 1-1, the air inlet window 2 consists of a plurality of outer rib plates, an outer air permeable hole is formed in a gap between two adjacent outer rib plates, and the upper edge of the outer air permeable hole extends outwards to form an arc-shaped structure waterproof edge 2-; the inner side of the air inlet window 2 is provided with a waterproof board 3, the waterproof board 3 comprises a first side board 3-1 and a second side board 3-2, the second side board 3-2 is provided with two blocks which are respectively and vertically arranged at two corresponding sides of the first side board 3-1, the outer end part of the second side board 3-2 is folded outwards to form a fixed board, the first side board 3-1 is provided with a ventilating fence, the ventilating fence is composed of a plurality of inner rib boards, an inner vent hole is formed in a gap between two adjacent inner rib boards, an arc-shaped air channel board 311 is formed by extending the upper edge of the inner vent hole, the arc-shaped air channel board 311 extends towards the opposite direction of the second side board 3-2, the inner vent hole and the outer vent hole are arranged in a staggered mode, when rainwater poured in the reverse direction splashes towards the periphery, due to the staggered design of the inner vent hole and, and flows down along the inner wall; after external airflow enters the cabinet body 1 through the air inlet windows 2 of the side walls 1-1, the external airflow can enter the cabinet body 1 through the air permeable fence and the upper and lower through holes, the air inlet heat dissipation requirement can be met, and meanwhile, the guide holes in three directions are arranged, so that air inlet is guided, and therefore all positions above and below the air inlet windows 2 of the cabinet body 1 can be fully cooled and dissipated.

The top plate 1-2 is buckled above the side wall 1-1, the edge of the top plate 1-2 extends outwards to form a rain-proof eave 121, the outer edge of the rain-proof eave 121 is turned downwards to form an outer side gap, an inner sealing plate 122 is arranged on the inner side, located on the side wall 1-1, of the top plate 1-2, an inner side gap is formed between the inner sealing plate 122 and the side wall 1-1, the outer side gap and the inner side gap are communicated through the side wall 1-1, and air holes are formed in the ventilation plates at the bottoms of the outer side gap and the inner side gap. If the rainwater takes place to flow backward to cabinet 1 in-process too greatly, waterproof board 3 further can avoid the rainwater to splash to electrical components.

A support edge 111 is formed by extending the lower edge of the side wall 1-1 into the cabinet body 1, the bottom plate 1-3 is buckled on the support edge 111, and the bottom plate 1-3 is higher than the support edge 111, so that a drainage channel is formed between the edge of the bottom plate 1-3 and the side wall 1-1, and a drainage hole 131 is formed at the side of the drainage channel close to the edge of the bottom plate 1-3; the drainage channel is positioned under the waterproof board 3 and the air holes on the inner side of the top board 1-2.

In the scheme, the bottom plate 1-3 is provided with heat dissipation holes 132, and the upper end faces of the heat dissipation holes 132 are provided with more than one layer of dust screens in a fitting manner; the inner side wall of the air inlet window 2 is provided with more than one layer of dust screen in an attaching mode. The dust screen adopts a stainless steel wire mesh, and the aperture of the stainless steel wire mesh is smaller than 1 mm. Can prevent the dust, the effect that the insect got into effectively improves the protection level, and the dust screen of 2 inboard side of air inlet window also has certain effect of keeping off the rain in addition.

A heat dissipation and condensation removal system is arranged in a cabinet body 1 and comprises a constant temperature controller 103, a temperature sensor 101, a humidity sensor 102, a heat dissipation fan 4, a heating circuit 105, a micro-break switch and a power supply module, wherein the temperature sensor 101 is used for detecting the temperature in the cabinet body 1, the temperature sensor 101 is arranged on the root part of a distance column 731 on the inner side of a metal plate layer 7-3, the humidity sensor 102 is used for detecting the humidity in the cabinet body 1, the humidity sensor 102 is arranged on the outer end face of the metal plate layer 7-3, the temperature sensor 101 and the humidity sensor 102 are used for sending detected signals to the constant temperature controller 103, the constant temperature controller 103 judges the condition in the cabinet body 1 and sends working instructions to the heat dissipation fan 4 or the heating circuit 105 respectively so as to control the temperature and humidity condition in the cabinet body 1, and an L, N terminal of the power supply module is connected with an illuminating lamp 104, the power supply is used for providing power for the heat dissipation and condensation removal system. When the temperature in the cabinet body 1 is higher than or equal to a set value, the thermostatic controller 103 controls the cooling fan 4 to start, so that the circulation of air flow inside and outside the cabinet body 1 is enhanced, when the temperature is reduced to be lower than the set value, the thermostatic controller 103 sends a stop instruction to the cooling fan 4, when the humidity in the cabinet body 1 is higher than the set value, the thermostatic controller 103 controls the heating loop 105 to work, and when the humidity is reduced to be lower than the set value, the thermostatic controller 103 cuts off the power supply of the heating loop 5.

In the scheme, the cabinet body 1 and the door are made of 304 stainless steel, the door is an externally hung door, the lock rod is matched, and 1 hanging ring is arranged on each of two sides of the lock rod and is matched with 4 long lead screws; the hinge bolt is made of stainless steel, and the inlet wire bent pipe/outlet wire straight pipe is made of 304; all exposed screws are made of stainless steel; all mounting cross beams in the cabinet body 1 are made of non-flower galvanized plates with the thickness of 1.5mm, the cross beams are provided with component rivet screw holes, and mounting holes for fixing the cross beams to the stand columns are longitudinal long holes; the cabinet body is sprayed on one side, the instrument panel of the compensation chamber corresponds to the door and is provided with the observation window, and the cabinet body is outdoor, has good rain-proof performance and is flat-topped; 2 water outlet holes are formed in the bottom of the front door and the bottom of the rear door of the cabinet body 1; install radiator fan 4 additional in the cabinet body 1 and remove the condensation heater, fan and heater realize automatic control by constant temperature controller 103, must not influence other equipment operation and reduce the protection level of block terminal after the installation fan. In the cabinet body 1, current transformers TA1 and TA2 and a fuse type isolating switch 6 are arranged on one side of an incoming line unit, a 3QF-5QF molded case circuit breaker 5 is arranged on one side of an outgoing line unit in parallel, a co-compensation intelligent capacitor bank C1 and a sub-compensation capacitor bank C2 are connected through a 2QF circuit breaker, and a surge protector SPO is further arranged in parallel with the intelligent capacitor bank.

The outlet chamber is provided with lighting equipment, and the door opening lamp is required to be turned on and the door closing lamp is required to be turned off; three phi 110mm knock-off holes are reserved at the bottom of the wire outlet chamber, and a wire protection sleeve is arranged; the mounting pieces of the upper cabinet body and the lower cabinet body 1 are correspondingly provided with holes; stainless steel bolts or copper studs are welded at the positions of the doors and the corresponding cabinet body 1; the door of the cabinet body 1 can be flexibly opened at an angle of not less than 150 degrees, and can be tightly sealed after being closed, and a sealing strip is additionally arranged between the outer door and the cabinet body 1; the outlet chamber cable fixing frame is fixed on the bottom plate of the cabinet body 1, and all the inlet and outlet wire holes are provided with cable fixing clamps; the welding spot adopts stainless steel argon arc welding for rust prevention treatment; and an insulating protection plate is additionally arranged on the back surface of the outgoing switch plate.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiments, and although the present invention has been disclosed with the preferred embodiments, it is not limited to the present invention, and any skilled person in the art can make some modifications or equivalent changes without departing from the technical scope of the present invention.

Claims (5)

1. The utility model provides a multi-functional low voltage distribution box with built-in lateral wall waterproof construction, includes the cabinet body (1), its characterized in that: the cabinet body (1) is of a cuboid structure, the cabinet body (1) comprises a side wall (1-1), a top plate (1-2) arranged at the upper part of the side wall (1-1) and a bottom plate (1-3) arranged at the lower part of the side wall (1-1), an air inlet window (2) is arranged on the side wall (1-1), the air inlet window (2) consists of a plurality of outer rib plates, an outer air through hole is formed in a gap between two adjacent outer rib plates, and the upper edge of the outer air through hole extends outwards to form an arc-shaped structure waterproof edge (2-1);

the air inlet window is characterized in that waterproof plates (3) are mounted on the inner side of the air inlet window (2), each waterproof plate (3) comprises a first side plate (3-1) and a second side plate (3-2), the second side plate (3-2) is provided with two blocks which are vertically arranged on two corresponding sides of the first side plate (3-1) respectively, the outer end portion of the second side plate (3-2) is turned outwards to form a fixed plate, a ventilating fence is arranged on the first side plate (3-1) and consists of a plurality of inner rib plates, inner air holes are formed in gaps between the two adjacent inner rib plates, arc-shaped air channel plates (311) are formed in the upper edges of the inner air holes in an extending mode, the arc-shaped air channel plates (311) extend in the opposite direction of the second side plate (3-2), and the inner air holes and;

a supporting edge (111) is formed by extending the lower edge of the side wall (1-1) into the cabinet body (1), the bottom plate (1-3) is buckled on the supporting edge (111), the bottom plate (1-3) is higher than the supporting edge (111) so as to form a drainage channel between the edge of the bottom plate (1-3) and the side wall (1-1), and a drainage hole (131) is formed at the side of the drainage channel close to the edge of the bottom plate (1-3); the drainage channel is positioned under the waterproof plate (3).

2. The multifunctional low-voltage distribution box with the built-in side wall waterproof structure as claimed in claim 1, wherein: the bottom plate (1-3) is provided with heat dissipation holes (132), and the upper end faces of the heat dissipation holes (132) are provided with more than one layer of dust screens in an attaching mode; the inner side wall of the air inlet window (2) is provided with more than one layer of dust screen in an attaching mode.

3. The multifunctional low-voltage distribution box with the built-in side wall waterproof structure as claimed in claim 1, wherein: the roof (1-2) is buckled above the side wall (1-1), the edge of the roof (1-2) extends outwards to form a rain-proof eave (121), the outer edge of the rain-proof eave (121) is turned downwards to form an outer side gap, an inner sealing plate (122) is arranged on the inner side, located on the side wall (1-1), of the roof (1-2), an inner side gap is formed between the inner sealing plate (122) and the side wall (1-1), the outer side gap and the inner side gap are communicated through the side wall (1-1), and a plurality of air holes are formed in the bottom air permeable plates of the outer side gap and the inner side gap.

4. The multifunctional low-voltage distribution box with the built-in side wall waterproof structure as claimed in claim 1, wherein: and a heat radiation fan (4) is arranged on the side wall (1-1) close to the bottom part to discharge high-temperature gas in the cabinet body (1).

5. The multifunctional low-voltage distribution box with the built-in side wall waterproof structure as claimed in claim 2, wherein: the dust screen is made of a stainless steel wire mesh, and the aperture of the stainless steel wire mesh is smaller than 1 mm.

Images