CN216084781U - Intelligent direct current combiner box of external fuse - Google Patents
Intelligent direct current combiner box of external fuse Download PDFInfo
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- CN216084781U CN216084781U CN202122689895.2U CN202122689895U CN216084781U CN 216084781 U CN216084781 U CN 216084781U CN 202122689895 U CN202122689895 U CN 202122689895U CN 216084781 U CN216084781 U CN 216084781U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The utility model relates to a confluence device and discloses an intelligent direct current confluence box with external fuses. The connector includes the public end of connector and the female end of connector, and the public end of connector can be dismantled with the female end of connector and be connected, converges and is provided with the public end of a plurality of first connectors and/or the female end of a plurality of first connectors on the case body, and the one end of fuse is provided with the public end of second connector, and the other end is provided with the female end of second connector. One part of the fuse is connected with the female end of the first connector through the male end of the second connector, and the other part of the fuse is connected with the male end of the first connector through the female end of the second connector. Through external with the fuse, can effectively give off the heat of fuse, reduce the internal temperature of collection flow box, guarantee the operational environment of inside components and parts, improve the life of collection flow box.
Description
Technical Field
The utility model relates to a bus device, in particular to an intelligent direct current bus box with an external fuse.
Background
For a large-scale photovoltaic grid-connected power generation system, in order to reduce connecting wires between a photovoltaic module and an inverter, facilitate maintenance and improve reliability, a direct current combiner box is generally required to be added between the photovoltaic module and the inverter.
Photovoltaic lightning protection direct current collection box series products are designed specially for meeting the requirement. The user can be according to the direct current voltage scope of inverter input, and the photovoltaic module that constitutes photovoltaic module tandem with certain quantity, the same of specification is established ties, connects in parallel a plurality of photovoltaic tandem again and converges through cable access photovoltaic lightning protection collection flow box, exports behind the circuit breaker, has made things convenient for the access of back level inverter.
The traditional scheme of collection flow box is that the fuse is installed inside the collection flow box, and the flow box majority is installed in the open air, receives that sunshine penetrates directly and each components and parts produce higher temperature rise when the full power electricity generation of product, plus-minus fuse side by side is many, and middle regional fuse temperature is higher, and the fusible core is fallen by the temperature and holds and fall side by side and hold seriously, can reduce fuse performance and life-span. When the fuse is blown, the group string is in an open circuit state, and a large amount of generated energy is directly lost. If the problem that the fuse fuses frequently due to high temperature needs to be avoided, a higher-grade specification needs to be selected, the cost of the junction box is increased greatly, and the reduction of the power generation cost of the system is not facilitated.
From the aspect of collection flow box temperature rise test, the temperature rise that the fuse produced is the key device that collection flow box temperature rise is too high, reduces the temperature rise that the fuse produced, and it is the key place to collection flow box performance and life-span.
Disclosure of Invention
The utility model provides a direct current combiner box with an external fuse, which solves the problem that the temperature of the combiner box is too high because the fuse is arranged in the combiner box in the prior art.
The utility model adopts the following technical scheme: an intelligent direct current combiner box with external fuses comprises a combiner box body and a plurality of fuses, wherein the fuses are all located outside the combiner box body, each fuse is detachably connected with the combiner box body through a connector, and the number of the fuses is the same as the sum of the number of wiring ends of positive collector copper bars and the number of wiring ends of negative collector copper bars in the combiner box body;
the connector comprises a connector male end and a connector female end, the connector male end is detachably connected with the connector female end, the junction box body is provided with a plurality of first connector male ends and/or a plurality of first connector female ends, one end of the fuse is provided with a second connector male end, and the other end of the fuse is provided with a second connector female end;
when a first connector male end or a first connector female end is arranged on the combiner box body, the number of the first connector male end or the first connector female end is the same as the sum of the number of the wiring ends of the positive busbar and the number of the wiring ends of the negative busbar in the combiner box body, and each fuse is connected with the first connector male end through the second connector female end or connected with the first connector female end through the second connector male end;
when being provided with the public end of first connector and the female end of first connector on the case body that converges, the quantity of the public end of first connector with the quantity of the female end of first connector is the same, and equalling in the wiring end quantity or the negative pole that the internal anodal copper bar that converges of case that converges and converge copper bar wiring end quantity, partly the fuse passes through the public end of second connector is connected the female end of first connector, another part the fuse passes through the female end of second connector is connected the public end of first connector.
Furthermore, the male end of the connector is connected with the female end of the connector in a plug-in manner.
Further, the connector is a cable connector.
Further, the fuse includes fusible core and mount pad, the fusible core is installed in the mount pad, the public end of second connector pass through the cable with the one end of mount pad is connected, the female end of second connector pass through the cable with the other end of mount pad is connected.
Further, the fusible core is detachably connected with the mounting seat.
Further, when a first connector male end or a first connector female end is arranged on the combiner box body, each fuse is connected with a group string cable through the second connector male end or the second connector female end;
when being provided with the public end of first connector and the female end of first connector on the collection flow box body, partly the fuse passes through the female end of second connector connects group cluster cable, another part the fuse passes through the public end of second connector connects group cluster cable.
Further, when the junction box body is provided with a first connector male end or a first connector female end, the positive input and the negative input of the junction box are both the first connector male end or the first connector female end;
when being provided with first connector public end and first connector female end on the collection flow box body, the positive pole input of collection flow box is first connector public end, and the negative pole input of collection flow box is first connector female end.
The utility model has the beneficial effects that: through setting up the fuse in the flow box body outside that converges, can effectively give off the heat of fuse, reduce the internal temperature of flow box that converges, guarantee the operational environment of inside components and parts, thereby avoid the fuse to fuse because of the high temperature simultaneously, improve the life who converges the flow box. Adopt the connector to connect the fuse and the collection flow box, can convenient and fast ground change the fuse of damage to reduce the loss after the fuse fuses.
Drawings
Fig. 1 is a schematic structural view of a combiner box according to the present invention.
Fig. 2 is a schematic diagram of the header box of the present invention.
Fig. 3 is a bottom view of the junction box of the present invention.
FIG. 4 is a right side view of the combiner box of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that fig. 1 is a schematic structural diagram of an embodiment of the present invention, and fig. 2 is a schematic circuit diagram corresponding to fig. 1. As shown in fig. 1 and 2, an intelligent dc combiner box with external fuses comprises a combiner box body 1 and a plurality of fuses, wherein the fuses are located outside the combiner box body 1, each fuse is detachably connected with the combiner box body 1 through a connector, and the number of the fuses is the same as the sum of the number of the terminals of positive busbar and the number of the terminals of negative busbar in the combiner box body 1;
the connector comprises a male connector end and a female connector end, the male connector end is detachably connected with the female connector end, a plurality of male first connector ends 3 and/or a plurality of female first connector ends 2 are/is arranged on the combiner box body 1, one end of the fuse is provided with a male second connector end 5, and the other end of the fuse is provided with a female second connector end 6;
when the bus box body 1 is provided with a first connector male end 3 or a first connector female end 2, the number of the first connector male end 3 or the first connector female end 2 is the same as the sum of the number of the wiring ends of the positive bus bar and the number of the wiring ends of the negative bus bar in the bus box body 1, and each fuse is connected with the first connector male end 3 through the second connector female end 6 or connected with the first connector female end 2 through the second connector male end 5;
when being provided with the public end 3 of first connector and the female end 2 of first connector on the case body 1 that converges, the public quantity of end 3 of first connector with the female quantity of end 2 of first connector is the same, and equalling converges the wiring quantity or the negative pole of the copper bar wiring quantity that converges of the internal anodal wiring that converges of case body 1, partly the fuse passes through the public end 5 of second connector is connected the female end 2 of first connector, another part the fuse passes through the female end 6 of second connector is connected the public end 3 of first connector.
Through setting up the fuse in the 1 outsides of collection flow box body, can effectively give off the heat of fuse, reduce the box internal temperature that converges, guarantee the operational environment of inside components and parts, thereby avoid the fuse to fuse because of the high temperature simultaneously, improve the life who converges the flow box. Adopt the connector to connect the fuse and the collection flow box, can convenient and fast ground change the fuse of damage to reduce the loss after the fuse fuses.
In one embodiment of the utility model, in order to facilitate replacement of an external fuse, the male end of the connector and the female end of the connector are in plug-in connection, namely the connector is a plug-in connector, and the plug-in connector is adopted, so that the connection is stable, and the replacement of the fuse is more convenient. Further, the connector may employ a cable connector.
In one embodiment of the utility model, the fuse comprises a fusible core 8 and a mounting seat 4, the fusible core 8 is mounted in the mounting seat 4, the second connector male end 5 is connected with one end of the mounting seat 4 through a cable, and the second connector female end 6 is connected with the other end of the mounting seat 4 through a cable. Install fuse 8 in mount pad 4, connect the both ends at mount pad 4 respectively with second connector male end 5 and second connector female end 6 through the cable, can effectively guarantee the connectivity of two contacts. On the basis, the fusible core 8 is detachably connected with the mounting seat 4. Can dismantle with mount pad 4 through fusible core 8 and be connected, when the staff changed the fuse so, only need pull down fusible core 8 and change, can reduce the change time, reduce cost of maintenance.
In one embodiment of the present invention, when the junction box body 1 is provided with the first connector male end 3 or the first connector female end 2, each fuse is connected to a group string cable through the second connector male end 5 or the second connector female end 6. For example when converging box body 1 and being provided with first connector public end 3, first connector public end 3 is for converging the box anodal and negative pole input of converging, and the public end 3 of first connector is connected to the female end 6 of second connector of fuse this moment, makes the fuse be connected with the box that converges, and the public end 5 of second connector just is connected with the group cluster cable this moment, and the tip of group cluster cable is provided with the female end of connector that suits with the public end 5 of second connector. On the contrary, the group string cable is connected with the second connector female end 6, and the end part of the group string cable is provided with a connector male end matched with the second connector female end 6.
When being provided with the female end 2 of first connector 3 and first connector on the collection flow box body 1, partly the fuse passes through the female end 6 connection group cluster cable of second connector, another part the fuse passes through the public end 5 connection group cluster cable of second connector. The end part of the group string cable connected with the second connector female end 6 is provided with a connector male end adapted to the second connector female end 6; the end of the group string cable connected with the second connector male end 5 is provided with a connector female end adapted to the second connector male end 5.
In an embodiment of the present invention, to facilitate distinguishing the positive electrode and the negative electrode of the junction box, when the junction box body 1 is provided with the first connector male end 3 or the first connector female end 2, the positive input and the negative input of the junction box are both the first connector male end 3 or the first connector female end 2. When being provided with first connector public end 3 and first connector female end 2 on the collection flow box body 1, the anodal input of collection flow box is first connector public end 3, and the negative pole input of collection flow box is first connector female end 2. As shown in fig. 3, the number of the first connector male end 3 and the first connector female end 2 at the bottom of the junction box body 1 may be multiple, and for the convenience of distinguishing and connecting wires, the first connector male end 3 may be disposed at the right side of the bottom of the junction box body 1, the second connector female end 6 may be disposed at the left side of the bottom of the junction box body 1, and an output cable connector may be disposed in the middle. For guaranteeing that the internal air pressure of the confluence box is stable, the bottom of the confluence box body 1 can be further provided with a one-way vent valve.
In the present invention, as shown in the embodiment shown in fig. 1 and fig. 2, the combiner box body 1 may include a housing, a monitoring device, a lightning arrester, an isolating switch, an anode combiner copper bar, a cathode combiner copper bar, a hall sensor, and an output copper bar, wherein the monitoring device, the lightning arrester, the isolating switch, the anode combiner copper bar, the cathode combiner copper bar, and the output copper bar are fixed inside the housing, the anode combiner copper bar is connected to an anode input end of the isolating switch, the cathode combiner copper bar is connected to a cathode input end of the isolating switch, and the output copper bar is connected to an output end of the isolating switch. The male end 3 of the first connector at the bottom of the junction box body 1 is connected with one end of the Hall sensor, the other end of the Hall sensor is connected with the positive junction copper bar, and the female end 2 of the first connector is connected with the negative junction copper bar. The monitoring device is electrically connected with the lightning protection device, the monitoring device is used for monitoring the internal condition of the combiner box, and the lightning protection device is electrically connected with the output end of the isolating switch. As shown in fig. 4, a side lock is provided on a side wall of the housing for fixing the front panel of the housing.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (7)
1. The intelligent direct-current combiner box with the external fuses comprises a combiner box body (1) and a plurality of fuses, and is characterized in that the fuses are located outside the combiner box body (1), each fuse is detachably connected with the combiner box body (1) through a connector, and the number of the fuses is the same as the sum of the number of wiring ends of positive collector copper bars and the number of wiring ends of negative collector copper bars in the combiner box body (1);
the connector comprises a connector male end and a connector female end, the connector male end is detachably connected with the connector female end, a plurality of first connector male ends (3) and/or a plurality of first connector female ends (2) are/is arranged on the junction box body (1), one end of the fuse is provided with a second connector male end (5), and the other end of the fuse is provided with a second connector female end (6);
when the bus box body (1) is provided with a first connector male end (3) or a first connector female end (2), the number of the first connector male end (3) or the first connector female end (2) is the same as the sum of the number of the wiring ends of the positive bus copper bar and the number of the wiring ends of the negative bus copper bar in the bus box body (1), and each fuse is connected with the first connector male end (3) through the second connector female end (6) or connected with the first connector female end (2) through the second connector male end (5);
when converging when being provided with public end (3) of first connector and the female end (2) of first connector on case body (1), the quantity of the public end (3) of first connector with the quantity of the female end (2) of first connector is the same, and equalling converges the wiring end quantity or the negative pole of the copper bar that converges of positive pole in case body (1) and converge copper bar wiring end quantity, partly the fuse passes through public end (5) of second connector is connected the female end (2) of first connector, another part the fuse passes through female end (6) of second connector is connected public end (3) of first connector.
2. The intelligent dc combiner box with external fuses of claim 1, wherein the male connector end is connected to the female connector end by a plug-in connection.
3. The external fuse intelligent dc combiner box of claim 2, wherein the connector is a cable connector.
4. The intelligent direct current combiner box of the external fuse according to claim 1, wherein the fuse comprises a fusible core (8) and a mounting seat (4), the fusible core (8) is mounted in the mounting seat (4), the second connector male end (5) is connected with one end of the mounting seat (4) through a cable, and the second connector female end (6) is connected with the other end of the mounting seat (4) through a cable.
5. The intelligent direct current combiner box of the external fuse according to claim 4, wherein the fusible core (8) is detachably connected with the mounting seat (4).
6. The intelligent direct current combiner box of external fuse of claim 1, wherein when the combiner box body (1) is provided with a first connector male end (3) or a first connector female end (2), each fuse is connected with a group cable through the second connector male end (5) or the second connector female end (6);
when being provided with first connector public end (3) and first connector female end (2) on collection flow box body (1), partly the fuse passes through group cluster cable is connected to second connector female end (6), another part the fuse passes through group cluster cable is connected to second connector public end (5).
7. The intelligent direct current combiner box of the external fuse according to claim 1, wherein when the combiner box body (1) is provided with a first connector male end (3) or a first connector female end (2), the positive input and the negative input of the combiner box are both the first connector male end (3) or the first connector female end (2);
when being provided with first connector public end (3) and first connector female end (2) on collection flow box body (1), the anodal input of collection flow box is first connector public end (3), and the negative pole input of collection flow box is first connector female end (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122689895.2U CN216084781U (en) | 2021-11-04 | 2021-11-04 | Intelligent direct current combiner box of external fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122689895.2U CN216084781U (en) | 2021-11-04 | 2021-11-04 | Intelligent direct current combiner box of external fuse |
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| Publication Number | Publication Date |
|---|---|
| CN216084781U true CN216084781U (en) | 2022-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122689895.2U Active CN216084781U (en) | 2021-11-04 | 2021-11-04 | Intelligent direct current combiner box of external fuse |
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| Country | Link |
|---|---|
| CN (1) | CN216084781U (en) |
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2021
- 2021-11-04 CN CN202122689895.2U patent/CN216084781U/en active Active
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