CN214100436U

CN214100436U - Power distribution box

Info

Publication number: CN214100436U
Application number: CN202022952842.0U
Authority: CN
Inventors: 朱志平
Original assignee: Suzhou Hongyi Electric Technology Co ltd
Current assignee: Suzhou Hongyi Electric Technology Co ltd
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2021-08-31
Anticipated expiration: 2030-12-08

Abstract

The utility model relates to the technical field of electrical accessories, in particular to a power distribution box, which comprises a box body, an opening is arranged at the top of the box body, the opening is provided with a transverse fixing shaft, the horizontal height of the transverse fixing shaft is higher than that of the opening, an upwardly-turned cover plate is hinged on the transverse fixing shaft through a hinge structure, the number of the cover plates is two, the cover plates are respectively arranged towards the two sides of the transverse fixing shaft for completely sealing the opening, a thermal bimetallic strip is also fixedly arranged on the transverse fixing shaft and arranged below the cover plate, the thermal bimetallic strip extends towards the two sides and is abutted against the bottoms of the cover plates at the two sides of the transverse fixing shaft, and an active layer of the thermal bimetallic strip is arranged towards the inside of the box body; the utility model discloses have the hot bimetallic strip that can respond to the inside and outside difference in temperature of block terminal, can open or close the heat dissipation opening according to the difference in temperature is automatic.

Description

Power distribution box

Technical Field

The utility model relates to an electrical accessories technical field, concretely relates to power distribution box.

Background

The distribution box has wide application field, and relates to various aspects of industry, agriculture, traffic, people life and the like, wherein the distribution box is formed by assembling switch equipment, a measuring instrument, protective electrical equipment and auxiliary equipment on a metal cabinet or a screen according to the requirement of electrical wiring so as to reasonably distribute electric energy and facilitate the opening and closing operation of a circuit, when the existing distribution box works, the internal electrical components can emit heat to raise the temperature in the distribution box and influence the work of the electrical components, in order to facilitate heat dissipation, heat dissipation ports are usually formed on the distribution box and are usually arranged on the side edge of the distribution box in a shutter mode, so that rainwater can be prevented from entering while heat dissipation is carried out, but according to the principle that hot air flow rises and cold air flow drops, the heat dissipation efficiency of the heat dissipation ports arranged on the side edge is not high, and the heat dissipation ports are usually normally opened, but the distribution box does not need long-time heat dissipation, for example, at night or in winter, the heat dissipation opening which is always open can cause dust or impurities to enter, and the work of the internal electrical components is not facilitated.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at overcoming the defect among the prior art, provide a power distribution box, have the hot bimetallic strip that can respond to the inside and outside difference in temperature of block terminal, can open or close the heat dissipation opening according to the difference in temperature is automatic.

The utility model discloses a power distribution box, the power distribution box comprises a box body, the opening has been seted up at the top of box, the opening part is equipped with horizontal fixed axle, horizontal fixed axle's level is higher than open-ended level, it has the apron that can upwards turn up to articulate through hinge structure on the horizontal fixed axle, the apron is two, moves towards respectively the both sides setting of horizontal fixed axle is used for the totally enclosed opening, still fixed being equipped with hot bimetallic strip on the horizontal fixed axle, hot bimetallic strip sets up the below of apron, just hot bimetallic strip extend towards both sides and with the bottom butt of the apron of horizontal fixed axle both sides, the initiative bed of hot bimetallic strip sets up towards the box is inside.

Further, the air intake has been seted up to the bottom of box, air intake department is provided with radiator fan, radiator fan electricity is connected with micro-gap switch, micro-gap switch sets up open-ended edge, disconnection micro-gap switch when the apron seals the opening.

Further, the top of box is equipped with a plurality of pillars, and the top of pillar is provided with the flashing of slope, still be equipped with the solar photovoltaic board on the flashing, be equipped with energy storage component in the box, energy storage component with solar photovoltaic board and radiator fan electricity are connected.

Further, the top of box is in the open-ended both sides are provided with the side and enclose the fender, the side wall keeps off the orientation one side of apron slides and is provided with down and pushes down the gasket, the both ends bending type who pushes down the gasket becomes the hook that is used for pushing down two apron, the side wall keeps off go up the top of pushing down the gasket rotates and is equipped with the cam the outside that the side was enclosed the fender is equipped with and is used for rotating the handle of cam, handle and side wall keep off and realize fixing through the bolt.

Further, the edge of apron is provided with first waterproof rubber strip, the top of box is provided with the waterproof rubber strip of second, and when the apron lid, first waterproof rubber strip is in the outside of the waterproof rubber strip of second.

The utility model has the advantages that: the utility model discloses a power distribution box sets up the opening through the top at the box for the heat dissipation, be equipped with the apron that can upwards turn up and with the hot bimetallic strip of apron butt on the horizontal fixed axle that the opening part set up, when the temperature is higher, the deformation kickup takes place for hot bimetallic strip, will lap the jack-up and turn over, expose and be used for radiating opening automatic realization inside and outside temperature balance, when the temperature is lower, hot bimetallic strip is buckled down or is not buckled, do not influence apron closed opening, reduce the entering of dust or debris.

Drawings

The invention will be further described with reference to the following figures and examples:

fig. 1 is a schematic perspective view of the present invention;

fig. 2 is an enlarged view of a portion a in fig. 1.

Fig. 3 is a schematic sectional structure of the present invention;

fig. 4 is an enlarged view of fig. 3 at B.

Description of reference numerals: the solar photovoltaic heat dissipation device comprises a box body 1, an opening 2, a transverse fixing shaft 3, a cover plate 4, a thermal bimetallic strip 5, a cooling fan 6, a micro switch 7, a support column 8, a solar photovoltaic plate 9, a side wall baffle 10, a pressing gasket 11, a bent foot 12, a cam 13, a handle 14, a bolt 15, a first waterproof rubber strip 16 and a second waterproof rubber strip 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-4, the power distribution box in this embodiment includes a box body 1, an opening 2 is opened at the top of the box body 1, a horizontal fixing shaft 3 is disposed at the opening 2, the horizontal height of the horizontal fixing shaft 3 is higher than the horizontal height of the opening 2, a cover plate 4 capable of being turned up is hinged to the horizontal fixing shaft 3 through a hinge structure, two cover plates 4 are disposed respectively facing two sides of the horizontal fixing shaft 3 to completely close the opening 2, a thermal bimetal 5 is further fixed to the horizontal fixing shaft 3, the thermal bimetal 5 is a precision alloy, and two (or more) layers of metals or alloys with different thermal expansion coefficients are firmly combined to form the precision alloy. A component layer in the thermal bimetal has a low thermal expansion coefficient and is a passive layer; the other element layer has a high thermal expansion coefficient, is an active layer, the thermal expansion coefficients of the thermal bimetallic elements are different, when the temperature changes, the expansion or contraction amounts of the elements are different, the thermal bimetallic element as a whole is bent, the thermal bimetallic strip 5 is arranged below the cover plate 4, the thermal bimetallic strip 5 extends towards two sides and is abutted against the bottom of the cover plate 4 at two sides of the transverse fixing shaft 3, the active layer of the thermal bimetallic strip 5 is arranged facing the inside of the box body 1, when the temperature in the box body 1 is high, the expansion amount of the active layer is larger than that of the passive layer, the thermal bimetallic strip 5 is bent towards the passive layer, namely upwards, so that the cover plate 4 is jacked up, the opening 2 is exposed, and the inner side and the outer side of the box body 1 are conducted for heat dissipation; when the temperature is lower, heat dissipation is not needed, the thermal bimetallic strip 5 is not bent or bent downwards, and the cover plate 4 still seals the opening 2 to prevent foreign matters from entering.

In this embodiment, in order to enhance the heat dissipation effect, an air inlet is formed in the bottom of the box body 1, a heat dissipation fan 6 is arranged at the air inlet, the heat dissipation fan 6 is electrically connected with a micro switch 7, the micro switch 7 is arranged at the edge of the opening 2, the micro switch 7 is pressed to be disconnected when the cover plate 4 closes the opening 2, when the cover plate 4 is turned upwards, the micro switch 7 is turned on, and the heat dissipation fan 6 is turned on to accelerate the flow of air current.

The block terminal also has a lot of needs to set up outdoors, consequently needs relevant water-proof measures, in this embodiment, the top of box 1 is equipped with a plurality of pillars 8, and the top of pillar 8 is provided with the dash board of slope, still be equipped with solar photovoltaic board 9 on the dash board, be equipped with energy storage component in the box 1, energy storage component with solar photovoltaic board 9 and radiator fan 6 electricity are connected, still can utilize solar energy power generation when not raining to with electric power storage in energy storage component, be used for radiator fan 6's power supply.

Sometimes, it is necessary to artificially close the opening 2, therefore in this embodiment, the top of the box body 1 is provided with side barriers 10 at two sides of the opening 2, the side barriers 10 are slidably provided with a pressing pad 11 toward one side of the cover plate 4, two ends of the pressing pad 11 are bent to form bent legs 12 for pressing down two cover plates 4, the side barriers 10 are rotatably provided with a cam 13 above the pressing pad 11, a handle 14 for rotating the cam 13 is provided at the outer side of the side barriers 10, when the cam 13 is rotated, the cam 13 presses down the pressing pad 11, the cover plate 4 is compacted by the bent legs 12, and the handle 14 and the side barriers 10 are fixed by a bolt 15.

In order to enhance the waterproof effect, in this embodiment, the edge of the cover plate 4 is provided with a first waterproof rubber strip 16, the top of the box body 1 is provided with a second waterproof rubber strip 17, and when the cover plate 4 is covered, the first waterproof rubber strip 16 is located outside the second waterproof rubber strip 17.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides a power distribution box, includes the box, its characterized in that: the opening has been seted up at the top of box, the opening part is equipped with horizontal fixed axle, horizontal fixed axle's level is higher than open-ended level, it has the apron that can turn up to articulate through hinge structure on the horizontal fixed axle, the apron is two, moves towards respectively the both sides setting of horizontal fixed axle is used for the totally enclosed opening, still fixed being equipped with hot bimetallic strip on the horizontal fixed axle, hot bimetallic strip sets up the below of apron, just hot bimetallic strip extend towards both sides and with the bottom butt of the apron of horizontal fixed axle both sides, the initiative bed of hot bimetallic strip sets up towards the box is inside.

2. A power distribution box according to claim 1, wherein: the air inlet has been seted up to the bottom of box, air inlet department is provided with radiator fan, radiator fan electricity is connected with micro-gap switch, micro-gap switch sets up open-ended edge, disconnection micro-gap switch when the apron seals the opening.

3. A power distribution box according to claim 2, wherein: the top of box is equipped with a plurality of pillars, and the top of pillar is provided with the flashing of slope, still be equipped with the solar photovoltaic board on the flashing, be equipped with energy storage component in the box, energy storage component with solar photovoltaic board and radiator fan electricity are connected.

4. A power distribution box according to claim 1, wherein: the top of box is in the open-ended both sides are provided with the side and enclose the fender, the side wall keeps off the orientation one side of apron slides and is provided with down the gasket, the both ends bending type of pushing down the gasket becomes the curved foot that is used for pushing down two apron, the side wall keeps off going up the top of pushing down the gasket rotates and is equipped with the cam the outside that the side was enclosed the fender is equipped with and is used for rotating the handle of cam, handle and side wall keep off to realize fixedly through the bolt.

5. A power distribution box according to claim 1, wherein: the edge of apron is provided with first waterproof rubber strip, the top of box is provided with the waterproof rubber strip of second, and when the apron lid, first waterproof rubber strip is in the outside of the waterproof rubber strip of second.