Safety direct-current header box
Technical field
The utility model belongs to electric equipment technical field, relates in particular to a kind of direct current conflux case.
Background technology
Solar power generation is advanced by leaps and bounds in recent years, and whole world knowledgeable people is in the great Zhan talent that promotes the well-being of mankind for solar power generation.The electric unit the most basic at solar power system has been exactly header box except photovoltaic module (solar panel).It is direct current that photovoltaic module is produced by series-parallel mode, tricklet is summarized in header box, then is sent by header box.Header box has been accomplished the effect of forming a connecting link, also be one of requisite electric unit in solar power system, header box is numerous owing to importing loop, in header box, between numerous electric components, need to connect, and current header box connection cable is disorderly and unsystematic, the live metal parts such as pectination copper bar, contact copper bar and copper cable, cable joint are all exposed, to personal safety, bring very big hidden danger.
In addition, header box belongs to DC electrical system, conventionally the direct current by tens of cables, photovoltaic module being produced imports, and is often installed on open air, and this just needs a large amount of water joints to introduce for cable, but current water joint is substantially all same color, the positive-negative polarity that is difficult to distinguish or identify lead-in cable, therefore cause installation personnel field connection usually to make a mistake, causes serious electric short circuit accident, even burn out photovoltaic module, bring equally great hidden danger to device security.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of safety direct-current header box.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of safety direct-current header box, comprise housing, be located at anodal entering apparatus, negative pole entering apparatus, output device and Surge Protector in housing, described anodal entering apparatus, negative pole entering apparatus are all connected to described output device by electric conductor, described Surge Protector one end is connected on the electric conductor between anodal entering apparatus and output device, the other end is connected on the electric conductor between negative pole entering apparatus and output device, it is characterized in that; Path along each electric conductor in described housing is provided with the wire casing that holds electric conductor embedding, also has the cover plate that covers described electric conductor on described wire casing.
By the path along each electric conductor in housing, be provided with the wire casing of appearance electric conductor embedding and the cover plate that covers electric conductor is set on wire casing, electric conductor between electric components just can not be outside exposed like this, stop personal safety hidden danger, guaranteed security protection.
For fear of installation personnel field connection mistake, in further improvement of the utility model, described housing is provided with the second look water joint that the first look water joint and color are different from the first look water joint; On described anodal entering apparatus, there is first colour code identical with the first look water joint, on described negative pole entering apparatus, there is second colour code identical with the second look water joint.
In addition, on housing, be also provided with color and be both different from the 3rd look water joint that the first look water joint is also different from the second look water joint.
Described anodal entering apparatus, negative pole entering apparatus are fuse or knife switch; Described output device is DC circuit breaker, and described electric conductor is copper bar or copper cable.
Described the first look is red, and described the second look is blue.
In an embodiment of the present utility model, in described housing, be provided with counnter attack diode, described counnter attack diode is connected to the output of anodal entering apparatus and connects described output device through described electric conductor.
In an embodiment of the present utility model, in described housing, be provided with self-powered direct-current supervision device, described self-powered direct-current supervision device is connected to the output of anodal entering apparatus and connects described output device through described electric conductor.
In an embodiment of the present utility model, in described housing, be provided with counnter attack diode and self-powered direct-current supervision device, described self-powered direct-current supervision device is connected to the output of anodal entering apparatus and connects described counnter attack diode, and described counnter attack diode connects described output device through described electric conductor again.
Adopt technique scheme, direct current conflux case of the present utility model has the function of safe identification, security protection, has eliminated the potential safety hazard of equipment operation and maintenance.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated:
Fig. 1 is the structural configuration schematic diagram of embodiment 1;
Fig. 2 is the electrical connection schematic diagram of embodiment 1;
Fig. 3 is the structural configuration schematic diagram of embodiment 2;
Fig. 4 is the electrical connection schematic diagram of embodiment 2;
Fig. 5 is the structural representation of the housing bottom side panel of embodiment 1 and embodiment 2;
Fig. 6 is the structural configuration schematic diagram of embodiment 3;
Fig. 7 is the electrical connection schematic diagram of embodiment 3;
Fig. 8 is the structural configuration schematic diagram of embodiment 4;
Fig. 9 is the electrical connection schematic diagram of embodiment 4;
Figure 10 is the structural representation of the housing bottom side panel of embodiment 3 and embodiment 4.
Embodiment
Embodiment 1
As shown in Figure 1, the direct current conflux case of the present embodiment, comprises housing 100, is provided with anodal entering apparatus 200, negative pole entering apparatus 300, output device 400, Surge Protector 500 and wire casing 600 on the base plate in housing 100.Anodal entering apparatus 200, negative pole entering apparatus 300 are fuse, and output device 400 is DC circuit breaker.
Shown in Fig. 2; anodal entering apparatus 200, negative pole entering apparatus 300 are all connected to output device 400 by the electric conductor being arranged in wire casing 600; Surge Protector 500 one end are connected on the electric conductor between anodal entering apparatus 200 and output device 400, and the other end is connected on the electric conductor between negative pole entering apparatus 300 and output device 400.
Again as shown in Figure 1, the base plate of wire casing 600 in housing 100 arrange along the path of each electric conductor, and each electric conductor is embedded in wire casing 600, and has the cover plate that covers electric conductor on wire casing 600, guarantees that electric conductor does not expose.
As shown in Figure 5, on the panel of the bottom side of housing 100, be also provided with the first look water joint 701 and the second blue look water joint 702 of a row of row's redness.And as shown in Figure 1, be provided with first colour code 201 identical with the first look water joint color on anodal entering apparatus 200, on negative pole entering apparatus, 300 are provided with second colour code 301 identical with the second look water joint 702 colors.
Embodiment 2
As shown in Figure 3, Figure 4, the difference of the present embodiment and embodiment 1 is: on the base plate of housing 100, be also provided with counnter attack diode 801.This counnter attack diode 801 is connected to the output of anodal entering apparatus 200 and is connected to output device 400 through electric conductor.Other structure is identical with embodiment 1, is not repeated.
Embodiment 3
As described in Fig. 6, Fig. 7 and Figure 10, the difference of the present embodiment and embodiment 1 is: anodal entering apparatus 200 and the negative pole entering apparatus 300 of embodiment 1 are to be arranged above and below, so red blue water joint is also the correspondence with it that is arranged above and below, is convenient to connect and identification.The anodal entering apparatus 200 of the present embodiment and negative pole loader 300 are that arrange left and right, so red blue water joint is also left and right, arrange correspondence with it, are convenient to connect and identification.Also have the base plate of housing 100 to be provided with self-powered direct-current supervision device 802.Self-powered direct-current supervision device 802 is connected to the output of anodal entering apparatus 200 and is connected to output device 400 through electric conductor.Other structure is identical with embodiment 1, is not repeated.
Embodiment 4
As described in Fig. 8, Fig. 9, the difference of the present embodiment and embodiment 3 is: the base plate of housing 100 is also provided with counnter attack diode 801 and self-powered direct-current supervision device 802.Self-powered direct-current supervision device 802 is connected to the output of anodal entering apparatus 200 and connects counnter attack diode 801, and counnter attack diode 801 connects output device 400 through electric conductor again.Other structure is identical with embodiment 3, is not repeated.
The utility model adopts above-mentioned technical scheme, line place at header box cable is respectively equipped with red water joint, represent the introducing of positive polarity cable, blue water joint represents negative polarity cable, and the water joint irrelevant with positive-negative polarity cable is provided with its allochromatic colour water joint.The cable with positive and negative polarity is connected to respectively the positive and negative electrode input fuse (or knife switch) with red blue sign again and guarantees safe identification after introducing.Contact between fuse (or knife switch) and other electric components all adopts wire casing and cover plate arrangement, guarantees, without exposed live metal part, to stop personal safety hidden danger, and protection tightens security.
Therefore, by foregoing detailed description, can find out, direct current conflux case of the present utility model has the function of safe identification, security protection, has eliminated the potential safety hazard of equipment operation and maintenance.
In above-described embodiment, anodal entering apparatus 200, negative pole entering apparatus 300, according to function needs, can be that fuse can be also knife switch.
But; those skilled in the art will recognize that; above-mentioned embodiment is exemplary; in order better to make those skilled in the art can understand this patent; can not be interpreted as it is the restriction to this patent protection range; so long as according to spirit that this patent discloses do be anyly equal to change or modify, all fall into the scope of this patent protection.