CN203415872U - Cabinet door structure of photovoltaic DC power distribution cabinet - Google Patents
Cabinet door structure of photovoltaic DC power distribution cabinet Download PDFInfo
- Publication number
- CN203415872U CN203415872U CN201320543014.9U CN201320543014U CN203415872U CN 203415872 U CN203415872 U CN 203415872U CN 201320543014 U CN201320543014 U CN 201320543014U CN 203415872 U CN203415872 U CN 203415872U
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- power distribution
- door
- cabinet
- distribution cabinet
- photovoltaic
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Abstract
A cabinet door structure of a photovoltaic DC power distribution cabinet belongs to the technical field of photovoltaic distribution system, and comprises a power distribution cabinet body and a front door arranged on the power distribution cabinet body; the front door comprises an outer door and an inner door; the cabinet door structure is characterized in that a first air inlet is arranged on a lower portion, in the height direction, of the outer door; the outer door on the inner side of the first air inlet is provided with a dustproof net; a second air inlet is arranged on the lower portion, corresponding to the first air inlet position, of the inner door in the height direction; the cabinet door structure has the advantages that the heat in the cabinet can be timely radiated outwards, and heat radiation effect is very good; the cabinet door structure can effectively prevent overload dusts from entering the cabinet, thereby preventing short circuit accident caused by dust pollution.
Description
Technical field
The utility model belongs to photovoltaic distribution system technical field, is specifically related to a kind of cabinet door structure of photovoltaic DC power distribution cabinet.
Background technology
Photovoltaic DC power distribution cabinet is mainly used in large-sized photovoltaic power station; be used for connecting photovoltaic combiner box and photovoltaic DC-to-AC converter; and provide lightning protection and overcurrent protection; single crosstalk stream, voltage and lightning protection device state, the circuit-breaker status of monitoring photovoltaic array, access grid-connected inverter after the photovoltaic module power supply of header box output is confluxed again.Existing photovoltaic DC power distribution cabinet mainly comprises power distribution cabinet, is located at Qianmen and the back door on power distribution cabinet and is located at the components and parts group in power distribution cabinet.Due to a large amount of heating elements being installed in cabinet, as counnter attack diode, DC circuit breaker, control transformer, DC bus system etc.Because its overall caloric value is larger, so be designed with wind-cooling heat dissipating passage in power distribution cabinet, passage is respectively installed into air-out blower fan up and down, smooth and easy for guaranteeing the heat radiation of cabinet, is also provided with heat radiation air outlet at cabinet top simultaneously.But existing power distribution cabinet, because its below has to arrange, be not convenient to the air admission hole of air inflow or claim air inlet, thereby cannot form with the heat radiation air outlet at cabinet top the venting channels of convection current, cause the heat in cabinet outwards to distribute at short notice, radiating effect is poor, and components and parts can affect the reliability of action, reduction of service life after long-time heating.
For this reason, the applicant has done actively and effectively to explore, and has finally found the technical scheme addressing the above problem, and has taked under strict secrecy provision, to the experiment proved that it is practicable.
Summary of the invention
The purpose of this utility model is the cabinet door structure that a kind of photovoltaic DC power distribution cabinet will be provided, it offers air admission hole below power distribution cabinet, the heat radiation air outlet at described air admission hole and cabinet top forms the venting channels of convection current, guaranteed the smoothness of air, be conducive to heat in cabinet and outwards distribute timely, and excellent in heat dissipation effect; Meanwhile, in the inner side of air admission hole, be also provided with Air Filter, can effectively avoid too much the entering in cabinet of dust.
The purpose of this utility model reaches like this, a kind of cabinet door structure of photovoltaic DC power distribution cabinet, comprise power distribution cabinet and be located at the Qianmen on power distribution cabinet, described Qianmen comprises external door and inside door, be characterized in: described external door is provided with the first air admission hole below short transverse, on the external door of the first described air admission hole inner side, be also provided with Air Filter; Described inside door position corresponding to the first air admission hole below short transverse is provided with the second air admission hole.
In a specific embodiment of the present utility model, on described power distribution cabinet, be also provided with back door, described back door is provided with the 3rd air admission hole below short transverse.
In another specific embodiment of the present utility model, being shaped as of the first described air admission hole, the second air admission hole is circular cellular.
In another specific embodiment of the present utility model, it is circular cellular that the shape of the 3rd described air admission hole is similarly.
In another specific embodiment of the present utility model, a side of described inside door is hinged on the column of power distribution cabinet one side, and the opposite side of inside door is fixedly connected on the column of power distribution cabinet opposite side by locking device.
In of the present utility model and then a specific embodiment, on described inside door, offer components and parts inspection hole, components and parts handle hole.
The utility model is owing to adopting after said structure, the beneficial effect having: the air admission hole of offering by cabinet below and the heat radiation air outlet at cabinet top form the venting channels of convection current, guaranteed the smoothness of air, be conducive to heat in cabinet and outwards distribute timely, and radiating effect has been very good; Meanwhile, in the inner side of air admission hole, be also provided with Air Filter, what effectively blocks dust was too much enters in cabinet, avoids the short circuit accident causing because of dust pollution.
Accompanying drawing explanation
Fig. 1 is the planar structure schematic diagram at Qianmen in power distribution cabinet described in the utility model.
Fig. 2 is the planar structure schematic diagram at back door in power distribution cabinet described in the utility model.
Fig. 3 is an embodiment planar structure schematic diagram of inside door in Qianmen described in the utility model.
Fig. 4 is the partial enlarged drawing of the 3rd air admission hole described in the utility model.
In figure: 1. power distribution cabinet; 2. Qianmen, 21. external doors, 22. inside doors, 221. first inside doors, 222. second inside doors, 223. the 3rd inside doors, 224. the 4th inside doors; 3. back door; 41. first air admission holes, 42. second air admission holes, 43. the 3rd air admission holes; 7. components and parts inspection hole; 8. components and parts handle hole; 9. secondary connection groove.
Embodiment
In order to make the public can fully understand technical spirit of the present utility model and beneficial effect; applicant will describe in detail embodiment of the present utility model below by reference to the accompanying drawings; but applicant is not the restriction to technical scheme to the description of embodiment, anyly according to the utility model design, changes in the form rather than substance all and should be considered as protection range of the present utility model.
Refer to Fig. 1 and Fig. 3, the utility model relates to a kind of cabinet door structure of photovoltaic DC power distribution cabinet, comprise power distribution cabinet 1 and be located at the Qianmen 2 on power distribution cabinet 1, described Qianmen 2 comprises external door 21 and inside door 22, is characterized in: described external door 21 is provided with the first air admission hole 41 below short transverse; Described inside door 22 position corresponding to the first air admission hole 41 below short transverse is provided with the second air admission hole 42.The heat radiation air outlet at such the first air admission hole 41,42 of the second air admission holes and cabinet top forms the venting channels of convection current, has guaranteed the smoothness of air, is conducive to heat in cabinet and outwards distributes timely.Further, on the external door of the first described air admission hole 41 inner sides, be also provided with Air Filter, described Air Filter is mainly used in preventing too much the entering in power distribution cabinet 1 of dust outside power distribution cabinet, the short circuit accident of avoiding binding post to cause because of dust pollution; Can also prevent in addition in the power distribution cabinets of entering such as toy workload when minimizing operational outfit is safeguarded.Described Air Filter preferably adopts steel wire, certainly can also adopt the material that is similar to asbestos gauge, flame retardant type sponge etc., only need reach identical effect.
Refer to Fig. 2, on power distribution cabinet 1 described in the utility model, be also provided with back door 3, described back door 3 is provided with the 3rd air admission hole 43 below short transverse, so just can guarantee larger intake, further improves radiating effect.
Please continue to refer to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the shape of the first described air admission hole 41, the second air admission hole 42, the 3rd air admission hole 43 is preferably circular cellular, certainly can also adopt common blind shaped etc., as long as guarantee that total intake of cabinet can meet heat radiation and require.In addition, such structure meets the degree of protection requirement of cabinet shell IP20 equally.
One side of described inside door 22 is hinged on by hinge on the column of power distribution cabinet 1 one sides, and the opposite side of inside door 22 is fixedly connected on the column of power distribution cabinet 1 opposite side by locking device.Inside door 22 can be the integral structure of monoblock, also can by polylith independently door-plate combine.The quantity of inside door 22 and width, can be according to the quantity of the components and parts of installing in power distribution cabinet and kind flexible design.(specifically see Fig. 3) in the present embodiment, described inside door 22 comprises the from top to bottom installation successively of the first inside door 221, the second inside door 222, the 3rd inside door 223 and 224, four inside doors of the 4th inside door, separate, does not interfere with each other.On the door-plate of the first described inside door 221, offer on the door-plate that is respectively equipped with components and parts handle hole 8, the four inside doors 224 on the door-plate of components and parts inspection hole 7, the second inside doors 222, the 3rd inside door 223 and be provided with secondary connection groove 9.Voltmeter or ammeter etc. can be installed described components and parts inspection hole 7 is interior, facilitate the observation of components and parts; 8 described of components and parts handle holes are used for operating breaker etc., play certain buffer action, have ensured operator's personal safety.When in cabinet, certain components and parts need to be safeguarded or overhaul, only need to open the corresponding door of these components and parts, so both guarantee processing safety to be not easy to touch live part, effectively prevent again other elements of misoperation, avoided the personnel that cause to injure the accident with property loss.
Claims (6)
1.
a kind of cabinet door structure of photovoltaic DC power distribution cabinet, comprise power distribution cabinet (1) and be located at the Qianmen (2) on power distribution cabinet (1), described Qianmen (2) comprises external door (21) and inside door (22), it is characterized in that: described external door (21) is provided with the first air admission hole (41) below short transverse, on the external door of described the first air admission hole (41) inner side, be also provided with Air Filter; Described inside door (22) position corresponding to the first air admission hole (41) below short transverse is provided with the second air admission hole (42).
2.
the cabinet door structure of a kind of photovoltaic DC power distribution cabinet according to claim 1, it is characterized in that being also provided with back door (3) on described power distribution cabinet (1), described back door (3) are provided with the 3rd air admission hole (43) below short transverse.
3.
the cabinet door structure of a kind of photovoltaic DC power distribution cabinet according to claim 1, is characterized in that being shaped as of described the first air admission hole (41), the second air admission hole (42) is circular cellular.
4.
the cabinet door structure of a kind of photovoltaic DC power distribution cabinet according to claim 2, is characterized in that the shape of the 3rd described air admission hole (43) is similarly circular cellular.
5.
the cabinet door structure of a kind of photovoltaic DC power distribution cabinet according to claim 1, a side that it is characterized in that described inside door (22) is hinged on the column of power distribution cabinet (1) one side, and the opposite side of inside door (22) is fixedly connected on the column of power distribution cabinet (1) opposite side by locking device.
6.
the cabinet door structure of a kind of photovoltaic DC power distribution cabinet according to claim 1, is characterized in that offering components and parts inspection hole (7), components and parts handle hole (8) on described inside door (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320543014.9U CN203415872U (en) | 2013-09-03 | 2013-09-03 | Cabinet door structure of photovoltaic DC power distribution cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320543014.9U CN203415872U (en) | 2013-09-03 | 2013-09-03 | Cabinet door structure of photovoltaic DC power distribution cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203415872U true CN203415872U (en) | 2014-01-29 |
Family
ID=49978732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320543014.9U Expired - Lifetime CN203415872U (en) | 2013-09-03 | 2013-09-03 | Cabinet door structure of photovoltaic DC power distribution cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203415872U (en) |
-
2013
- 2013-09-03 CN CN201320543014.9U patent/CN203415872U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140129 |