CN220421768U - Integrated turn-off monitoring junction box - Google Patents
Integrated turn-off monitoring junction box Download PDFInfo
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- CN220421768U CN220421768U CN202321758572.7U CN202321758572U CN220421768U CN 220421768 U CN220421768 U CN 220421768U CN 202321758572 U CN202321758572 U CN 202321758572U CN 220421768 U CN220421768 U CN 220421768U
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- connector
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 30
- 238000003466 welding Methods 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 206010014357 Electric shock Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Classifications
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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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- Photovoltaic Devices (AREA)
Abstract
The utility model discloses an integrated turn-off monitoring junction box; comprising the following steps: the device comprises an anode junction box, a middle junction box, a cathode junction box, an anode connector, a cathode connector and a shutoff; a cable connection part and a bus bar welding part are arranged in the positive electrode junction box or the negative electrode junction box, and a switch and a ammeter which are communicated with the cable connection part and the bus bar welding part are arranged between the cable connection part and the bus bar welding part; the shutoff device is respectively and electrically connected with the positive electrode junction box and the negative electrode junction box, so that the shutoff device and the junction box form a whole; the positive connector and the negative connector are respectively electrically connected with the positive junction box and the negative junction box. The integrated turn-off monitoring junction box provided by the utility model has the advantages that the turn-off device and the junction box are taken as a whole, and can be assembled with a photovoltaic module, so that the problem of complex connection of the turn-off device in a follow-up photovoltaic power station system is avoided; the utility model has simple structure and convenient operation, reduces the cable length and the consumption of the connector, and reduces the cost.
Description
Technical Field
The utility model relates to the technical field of photovoltaic power generation, in particular to an integrated turn-off monitoring junction box.
Background
With the development of the photovoltaic market, people pay more attention to the safety of a photovoltaic module system. In a photovoltaic system, a string of component circuits often has a high dc voltage of about 600V to 1000V due to the superposition of the photovoltaic component voltages. When the cable connection in the direct current circuit is aged, the connector is faulty, the model is not matched, the two conductors with opposite polarities are in virtual connection or when the insulation between the two wires is invalid, the direct current arc is likely to be generated under the action of high voltage, open fire is generated, and the fire is caused. In this case, if the photovoltaic system is in fire for its own or external reasons, even if the power supply is cut off, the components on the direct current side are still connected in series, and high voltage is continuously generated as long as light is irradiated, then the components facing the combustion during fire fighting can not be saved, otherwise, there is a risk of electric shock, which can cause serious threat to the life safety of the fire fighters. Therefore, the rescue can only be started after no illumination or after the photovoltaic module system is completely burnt.
In order to solve the high-voltage rescue risk of fire fighters, a shutoff device can be arranged in the photovoltaic system, and the connection between each photovoltaic module can be remotely or manually and rapidly turned off, so that the direct-current high-voltage problem in the photovoltaic system array is eliminated, and the rescue risk is solved. That is, when the photovoltaic system is in fire, the shutoff device can eliminate high voltage electricity in the photovoltaic array, so that firefighters can perform fire fighting work at the first time, and loss is minimized. However, the existing optical Fu Guanduan device needs to connect the shutoff device with each component before connecting each shutoff device in series when installing, which is complex to install and has more cable consumption, resulting in higher cost.
Disclosure of Invention
The utility model aims at: in order to solve the problems existing in the installation of the existing light Fu Guanduan device, the utility model designs the integrated turn-off monitoring junction box which is simple in structure and convenient to operate, and solves the problems existing in the existing light Fu Guanduan device.
The utility model is realized by the following technical scheme:
an integral shut-off monitoring junction box, characterized in that, the junction box includes: the device comprises an anode junction box, a middle junction box, a cathode junction box, an anode connector, a cathode connector and a shutoff;
a bus bar welding position and a cable connecting position are arranged in the positive electrode junction box or the negative electrode junction box, and a switch and a ammeter which are communicated with the bus bar welding position are arranged between the cable connecting position and the bus bar welding position;
the shutoff device is respectively and electrically connected with the positive electrode junction box and the negative electrode junction box, so that the shutoff device and the junction box form a whole; the positive connector and the negative connector are respectively electrically connected with the positive junction box and the negative junction box.
The integrated turn-off monitoring junction box designed by the utility model is a three-split junction box and comprises an anode junction box, a cathode junction box and a middle junction box.
It should be appreciated that in this integrated shut down monitoring junction box: the inside of the shutoff device is provided with an intelligent chip, so that the functions of intelligent shutoff, data acquisition and communication can be achieved.
Specifically, the box body of the positive electrode or negative electrode junction box at any end can be properly lengthened, a switch and a ammeter are connected between the cable connection position and the bus bar welding position in the box body, the switch can play a role in shutting off the photovoltaic module, and the ammeter can measure the current in the module.
Further, an integral shut-off monitoring junction box: the shutoff device is electrically connected with the positive electrode junction box and the negative electrode junction box through cables respectively.
Further, an integral shut-off monitoring junction box: the outer sides of the positive electrode junction box and the negative electrode junction box are respectively provided with a first connecting hole;
the two ends of the cable are respectively electrically connected with the positive terminal box and the negative terminal box from the first connecting holes at the outer sides of the positive terminal box and the negative terminal box, and one end of the cable is electrically connected with the cable connecting part.
Further, an integral shut-off monitoring junction box: second connecting holes are formed in the inner sides of the positive electrode junction box and the negative electrode junction box;
the two ends of the cable are electrically connected with the positive terminal box and the negative terminal box respectively through second connecting holes formed in the inner sides of the positive terminal box and the negative terminal box, and the two ends of the cable are electrically connected with the bus bar welding positions.
Specifically, in the integrated shutdown monitoring junction box designed by the utility model, the shutdown device is directly connected with the positive junction box and the negative junction box through a cable, wherein the cable can be connected from the outside of the junction box or from the inside of the junction box, and a switch and a ammeter are connected inside the positive junction box or the negative junction box at any end.
In the integrated turn-off monitoring junction box designed by the utility model: the shutoff device and the junction box are connected into a whole through a cable, the cable can be connected with the shutoff device from the outside of the positive and negative junction boxes, and can also be connected with the shutoff device from the inside of the positive and negative junction boxes; (1) the cable is connected with the shutoff device from the outside of the positive and negative electrode junction boxes, namely the cable enters the junction boxes from the existing first connecting holes on the positive and negative electrode junction boxes and can be electrically connected with the welding position of the positive electrode or the negative electrode junction boxes, which is close to the original cable, so that the shutoff device and the junction boxes are connected into a whole; (2) the cable is connected with the shutoff device from the inside of the positive and negative electrode junction boxes, holes (second connecting holes) are formed in the inner side edges of the positive and negative electrode junction boxes, and the cable can enter the junction boxes from the newly punched second connecting holes on the positive and negative electrode junction boxes to be electrically connected with the bus bar welding parts, so that the shutoff device and the junction boxes are connected into a whole.
The utility model has the beneficial effects that:
(1) The integrated turn-off monitoring junction box designed by the utility model has the advantages that the turn-off device and the junction box are taken as a whole, and can be assembled with a photovoltaic module, so that the problem of complex connection of the turn-off device in a follow-up photovoltaic power station system is avoided.
(2) Aiming at the problem that the existing optical Fu Guanduan device is complex in connection, the utility model designs the integrated turn-off monitoring junction box which is simple in structure, convenient to operate and simple and convenient to wire, reduces the cable length and the consumption of the connector, and reduces the cost.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an integrated shutdown monitoring junction box provided in embodiment 1 of the present utility model, in which a cable is routed from the outside of the positive and negative junction boxes to a shutdown device;
FIG. 2 is an internal construction view of the integrated shut down monitoring junction box structure provided in FIG. 1;
fig. 3 is a schematic structural diagram of an integrated shutdown monitoring junction box according to embodiment 2 of the present utility model, in which a cable is routed from the inner sides of the positive and negative junction boxes to the shutdown device;
fig. 4 is an internal construction view of the integrated shut down monitoring terminal block structure provided in fig. 3.
The marks in the figure: the device comprises a positive electrode junction box 1, a middle junction box 2, a negative electrode junction box 3, a positive electrode connector 4, a negative electrode connector 5, a shutoff device 6, a bus bar welding part 7, a cable connecting part 8, a switch 9, a current meter 10, a cable 11, a first connecting hole 12 and a second connecting hole 13.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "upper," "lower," "left," "right," "top," "bottom," and the like indicate orientations or positional relationships, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may include one or more of the feature, either explicitly or implicitly. Moreover, the terms "first," "second," and the like, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein.
Example 1
As shown in fig. 1-2, there is provided an integrated shutdown monitoring junction box, which is characterized in that the junction box comprises: a positive terminal box 1, an intermediate terminal box 2, a negative terminal box 3, a positive connector 4, a negative connector 5 and a shutoff 6;
a cable connection part 8 and a bus bar welding part 7 are arranged in the negative electrode junction box 3, and a switch 9 and a ammeter 10 which are communicated with the cable connection part 8 and the bus bar welding part 7 are arranged between the cable connection part 8 and the bus bar welding part; the outer sides of the positive electrode junction box 1 and the negative electrode junction box 3 are respectively provided with a first connecting hole 12;
the shutoff device 6 is electrically connected with the positive electrode junction box 1 and the negative electrode junction box 3 through cables 11 respectively, so that the shutoff device and the junction box form a whole;
the method specifically comprises the following steps: two ends of the cable 11 enter the positive electrode junction box 1 and the negative electrode junction box 3 from first connecting holes 12 at the outer sides of the positive electrode junction box and the negative electrode junction box respectively to form electric connection with the positive electrode junction box and the negative electrode junction box, and one end of the cable 11 is electrically connected with a cable connection part 8;
the positive electrode connector 4 and the negative electrode connector 5 are electrically connected with the positive electrode junction box 1 and the negative electrode junction box 3 respectively.
Example 2
As shown in fig. 3 to 4, there is provided an integrated shutdown monitoring junction box, characterized in that the junction box includes: a positive terminal box 1, an intermediate terminal box 2, a negative terminal box 3, a positive connector 4, a negative connector 5 and a shutoff 6;
a cable connection part 8 and a bus bar welding part 7 are arranged in the negative electrode junction box 3, and a switch 9 and a ammeter 10 which are communicated with the cable connection part 8 and the bus bar welding part 7 are arranged between the cable connection part 8 and the bus bar welding part; the inner sides of the positive electrode junction box 1 and the negative electrode junction box 3 are respectively provided with a second connecting hole 13;
the shutoff device 6 is electrically connected with the positive electrode junction box 1 and the negative electrode junction box 3 through cables 11 respectively, so that the shutoff device and the junction box form a whole;
the method specifically comprises the following steps: two ends of the cable 11 enter the positive electrode junction box and the negative electrode junction box respectively from second connecting holes 13 formed in the inner sides of the positive electrode junction box 1 and the negative electrode junction box 3 to form electric connection with the positive electrode junction box and the negative electrode junction box respectively, and two ends of the cable 11 are electrically connected with the bus bar welding part 7;
the positive electrode connector 4 and the negative electrode connector 5 are electrically connected with the positive electrode junction box 1 and the negative electrode junction box 3 respectively.
When the integral type turn-off monitoring box is installed, the three-part junction box is glued together for installation, and then the three-part junction box is welded with the photovoltaic module according to a normal method.
The cable 11 can be fixed on the back of the photovoltaic module by using a masking tape, and the shutoff device 6 can be placed side by side with the junction box or installed at the frame of the module when the photovoltaic module is installed outdoors.
The integrated turn-off monitoring junction box designed by the utility model can have the functions of intelligent turn-off, data acquisition and communication through the turn-off device 6, the switch 9, the ammeter 10 and the like. Under normal conditions, the signal generator continuously sends signals, the integrated turn-off monitoring junction box receives signals, the switch is in a closed state, and the assembly works normally; when a fire or other conditions requiring the shutdown of the component occur, the signal generator stops sending signals, the shutoff device cannot receive the signals, and the control switch 9 is turned off, so that the component is in a shutdown state.
The integrated turn-off monitoring junction box provided by the utility model has the advantages that the complex connection problem of the turn-off device in a follow-up photovoltaic power station system is avoided, the structure is simple, the operation is convenient, the wiring is simple and convenient, the cable length and the consumption of the connector are reduced, and the cost is reduced.
The above-described preferred embodiments of the present utility model are only for illustrating the present utility model, and are not to be construed as limiting the present utility model. Obvious changes and modifications of the utility model, which are introduced by the technical solution of the present utility model, are still within the scope of the present utility model.
Claims (4)
1. An integral shut-off monitoring junction box, characterized in that, the junction box includes: a positive terminal box (1), an intermediate terminal box (2), a negative terminal box (3), a positive connector (4), a negative connector (5) and a shutoff device (6);
a bus bar welding position (7) and a cable connecting position (8) are arranged in the positive electrode junction box (1) or the negative electrode junction box (3), and a switch (9) and a ammeter (10) which are communicated with the bus bar welding position (7) are arranged between the cable connecting position (8) and the bus bar welding position (7);
the shutoff device (6) is respectively electrically connected with the positive electrode junction box (1) and the negative electrode junction box (3), so that the shutoff device and the junction box form a whole;
the positive electrode connector (4) and the negative electrode connector (5) are respectively electrically connected with the positive electrode junction box (1) and the negative electrode junction box (3).
2. An integrated shut down monitoring terminal block according to claim 1, characterized in that the shut down device (6) is electrically connected to the positive terminal block (1) and the negative terminal block (3) via cables (11), respectively.
3. An integrated shutdown monitoring junction box according to claim 2, characterized in that the outside of the positive junction box (1) and the negative junction box (3) are provided with a first connection hole (12);
two ends of the cable (11) are respectively electrically connected with the positive electrode junction box (1) and the negative electrode junction box (3) from first connecting holes (12) at the outer sides of the two, and one end of the cable (11) is electrically connected with the cable connecting part (8).
4. An integrated shutdown monitoring junction box according to claim 2, characterized in that the inner sides of the positive junction box (1) and the negative junction box (3) are provided with second connecting holes (13);
two ends of the cable (11) are respectively electrically connected with the positive electrode junction box (1) and the negative electrode junction box (3) through second connecting holes (13) formed in the inner sides of the two, and two ends of the cable (11) are electrically connected with the bus bar welding positions (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321758572.7U CN220421768U (en) | 2023-07-06 | 2023-07-06 | Integrated turn-off monitoring junction box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321758572.7U CN220421768U (en) | 2023-07-06 | 2023-07-06 | Integrated turn-off monitoring junction box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220421768U true CN220421768U (en) | 2024-01-30 |
Family
ID=89646246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321758572.7U Active CN220421768U (en) | 2023-07-06 | 2023-07-06 | Integrated turn-off monitoring junction box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220421768U (en) |
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2023
- 2023-07-06 CN CN202321758572.7U patent/CN220421768U/en active Active
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