CN215343924U - Discrete direct current system special for power generation building materials - Google Patents
Discrete direct current system special for power generation building materials Download PDFInfo
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- CN215343924U CN215343924U CN202120411878.XU CN202120411878U CN215343924U CN 215343924 U CN215343924 U CN 215343924U CN 202120411878 U CN202120411878 U CN 202120411878U CN 215343924 U CN215343924 U CN 215343924U
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- power generation
- inverter
- generation building
- junction box
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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
Abstract
The utility model particularly relates to a discrete direct current system special for power generation building materials, which comprises a power generation building material BIPV plate, an inverter and a power network, wherein the power generation building material BIPV plate is formed by connecting 1-n battery components in parallel, the power generation building material BIPV plate is connected with the input end of the inverter through a junction box, the output end of the inverter is connected with the power network, and the junction box is a non-diode junction box. According to the discrete direct current system special for the power generation building materials, the battery components are connected in parallel without being connected in series, backflow current cannot be generated, and a junction box without diodes can be used, so that the problem that the service life of a conventional junction box containing diodes is short is solved, each battery component can independently operate, even if one battery component has a problem, the operation of other battery components cannot be influenced, and the generated energy and the power generation rate can be improved.
Description
Technical Field
The utility model belongs to the technical field of novel intelligent building materials in the fields of energy production buildings, assembly buildings, green buildings and the like, and particularly relates to a discrete direct-current system special for power generation building materials.
Background
Referring to fig. 2, a conventional power generation building material system is implemented by sequentially connecting 10 to 25 power generation building material BIPV boards in series, and then connecting the power generation building material BIPV boards into an inverter, wherein a simple circuit model is shown in fig. 3, when U5 is shielded or abnormal, a current I1 flowing through the power generation building material BIPV board is generated, and as shown in fig. 4, if a junction box does not include a diode (which prevents the current from flowing through the photovoltaic building material itself), the photovoltaic building material of the U5 itself generates heat and even fires, and PID effect and other disadvantages are caused. Here, a junction box including a diode, which mainly functions to prevent the reverse current, must be used.
The diode is a key component in the photovoltaic cell junction box, and in the use process, the diode can generate heat, if the heat is not emitted in time, the service life of the diode can be influenced, and meanwhile, the electrical safety requirement cannot be met. In order to solve the heat dissipation problem of the diode in the junction box, the heat dissipation fins are usually arranged in the box body in the current market, but the heat generated by the diode is firstly dissipated in the box body in such a mode, and the temperature in the box body is still high due to the narrow space of the box body.
For this reason, it is of great importance to develop systems that can use a diode-less junction box and low voltage dc power generation.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a discrete direct current system special for power generation building materials, wherein battery components are connected in parallel without being connected in series, backflow current cannot be generated, and a junction box without diodes can be used, so that the problem of short service life of the conventional junction box containing diodes is solved. The technical problem to be solved by the utility model is realized by the following technical scheme:
a discrete direct current system special for power generation building materials comprises: the power generation building material BIPV plate, the inverter and the power network;
the power generation building material BIPV plate is formed by connecting 1-n battery modules in parallel, is connected with the input end of an inverter through a junction box, and the output end of the inverter is connected with a power network;
the junction box is a non-diode junction box.
Further, the above diode-less junction box includes: the conductive copper base material, the lower shell and the upper shell which can be buckled with the lower shell;
the conductive copper base material is fixed in the lower shell, the upper part of the conductive copper base material is provided with a tin-coating part, and the lower part of the conductive copper base material is fixedly connected with the cable;
the bottom of the lower shell is provided with a welding strip through hole.
Furthermore, the inverter is provided with MPPT tracking, the low-voltage direct current input voltage is 20-60 v, and the output is the standard of a power network system.
Furthermore, the inverter monitors the current and the voltage of the input side circuit in real time, and monitoring and management of the power generation building material AI in a logistics networking level are achieved.
Further, the inverter includes an inverter body and a plug, which are connected by a wire.
Furthermore, the input end of the inverter body is connected with the output end of the direct current bus, the output end of the inverter body is connected with a plug, and the plug is connected with a power network.
Compared with the prior art, the utility model has the beneficial effects that:
1. the discrete direct current system special for the power generation building materials comprises a power generation building material BIPV plate, an inverter and a power network, wherein the power generation building material BIPV plate is formed by connecting 1-n battery assemblies in parallel, the power generation building material BIPV plate is connected with the input end of the inverter through a junction box, the output end of the inverter is connected with the power network, the junction box is a junction box without diodes, the battery assemblies are connected in parallel, backflow current cannot be generated, and the junction box without diodes is used, so that the problem that the service life of the conventional junction box containing diodes is short is solved.
2. In the discrete direct-current system special for the power generation building materials, the diode-free junction box is adopted and comprises the conductive copper base material, the lower shell and the upper shell, the conductive copper base material is fixed in the lower shell, the upper part of the conductive copper base material is provided with the upper tin part, the lower part of the conductive copper base material is fixedly connected with the cable, the bottom of the lower shell is provided with the welding belt through hole, and the discrete direct-current system special for the power generation building materials has the advantages of simple structure, good conductivity, no generation of a large amount of heat in the using process and long service life.
3. According to the discrete direct current system special for the power generation building materials, the power generation building material BIPV plate is formed by connecting 1-n battery assemblies in parallel, each battery assembly can independently operate, even if one battery assembly has a problem, the operation of other battery assemblies cannot be influenced, and the power generation capacity and the power generation rate can be improved.
4. In the discrete direct-current system special for power generation building materials, the inverter comprises the inverter body and the plug, the inverter body is connected with the plug through the electric wire, and the plug is connected to the inverter body, so that the discrete direct-current system is convenient to use, simple and easy to operate.
Drawings
FIG. 1 is a schematic diagram of a discrete DC system for power generation building materials according to the present invention.
Figure 2 is a schematic diagram of a conventional power generation building material system.
FIG. 3 is a simplified circuit model of a conventional power generation building material system.
FIG. 4 is a simple circuit model of a conventional power generation building material system when one circuit is abnormal.
Fig. 5 is a schematic structural diagram of an inverter in the discrete dc system for power generation and building materials of the present invention.
Fig. 6 is a schematic view of the junction box with the upper case removed.
Fig. 7 is a rear view of the junction box.
Fig. 8 is an overall structural schematic diagram of the junction box.
In the figure: 1. a power generation building material BIPV plate; 3. an inverter; 31. an inverter body; 31. a plug; 4. an electrical power network; 5. a junction box; 51. a conductive copper base material; 52. a lower housing; 53. an upper housing; 54. tin coating; 55. a cable; 56. perforating the welding strip; 57. and a vent.
Detailed Description
The present invention will be described in further detail with reference to specific examples, but the embodiments of the present invention are not limited thereto.
In the description of the present embodiment, it should be understood that the terms "upper", "lower", "left", "right", and the like indicate orientations and positional relationships given to the orientations or positional relationships shown in the drawings. The description is simplified for convenience only and is not intended to indicate and imply that the devices referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the embodiment.
The present embodiment provides a discrete dc system for power generation building material, and referring to fig. 1, the discrete dc system for power generation building material includes: the building material BIPV panel comprises a power generation building material BIPV panel 1, an inverter 3 and a power network 4. The power generation building material BIPV plate 1 is formed by connecting 1-n battery modules in parallel. Each battery pack can independently operate, even if one battery pack goes wrong, the operation of other battery packs cannot be influenced, and the generating capacity and the generating rate can be improved. The power generation building material BIPV panel 1 is connected to an input terminal of an inverter 3 via a junction box 5, and an output terminal of the inverter 3 is connected to a power network 4.
The inverter 3 of the embodiment is provided with MPPT tracking, the low-voltage direct current input voltage is 20-60 v, and the output is the power grid standard of the power network 4. The inverter 3 carries out real-time monitoring on current and voltage of an input side circuit, and realizes monitoring and management on the power generation building material AI logistics network level.
The junction box 5 of the present embodiment is a diode-less junction box. Referring to fig. 6-8, the diode-less junction box includes: a conductive copper base material 51, a lower case 52, and an upper case 53 which can be engaged with the lower case 52. The upper shell 51 and the lower shell 52 are connected in a clamping manner, so that the installation and the maintenance are convenient.
The conductive copper base material 51 is fixed in the lower shell 52, and the upper part of the conductive copper base material 52 is provided with an upper tin position 54, so that welding is convenient. The lower part of the conductive copper base material 51 is fixedly connected with a cable 55, and the bottom of the lower shell 52 is provided with a welding strip through hole 56. The conductive copper base material has good heat conductivity and electric conductivity, does not generate a large amount of heat in the using process, and has long service life. Preferably, solder ribbon perforations 56 are located above the upper tin 54 to facilitate threading of positive or negative lead wires. The bottom of the lower shell 52 is provided with an adhesive overflow interface 57, so that the bonding performance of the junction box and the metal back plate is improved.
In the present embodiment, the inverter is a micro-inverter, the inverter 3 includes an inverter body 31 and a plug 32, and the inverter body 31 and the plug 32 are connected by a wire, see fig. 5. Specifically, the input end of the inverter body 31 is connected to the output end of the dc bus, the output end of the inverter body 31 is connected to the plug 32, and the plug 32 is connected to the power network 4. The plug is connected to the inverter body, so that the use is convenient.
The foregoing is a more detailed description of the utility model in connection with specific preferred embodiments and it is not intended that the utility model be limited to these specific details. For those skilled in the art to which the utility model pertains, several simple deductions or substitutions can be made without departing from the spirit of the utility model, and all shall be considered as belonging to the protection scope of the utility model.
Claims (6)
1. A discrete direct current system special for power generation building materials is characterized by comprising: the power generation building material BIPV panel (1), the inverter (3) and the power network (4);
the power generation building material BIPV plate (1) is formed by connecting 1-n battery modules in parallel, the power generation building material BIPV plate (1) is connected with the input end of an inverter (3) through a junction box (5), and the output end of the inverter (3) is connected with a power network (4);
the junction box (5) is a junction box without a diode.
2. The discrete dc system for power generation building material of claim 1, wherein the diode-less junction box comprises: a conductive copper base material (51), a lower case (52), and an upper case (53) that can be engaged with the lower case (52);
the conductive copper base material (51) is fixed in the lower shell (52), the upper part of the conductive copper base material (51) is provided with a tin-coating part (54), and the lower part of the conductive copper base material (51) is fixedly connected with a cable (55);
the bottom or the side surface of the lower shell (52) is provided with a welding strip through hole (56).
3. The discrete direct-current system special for power generation building materials as claimed in claim 2, wherein the inverter (3) is provided with MPPT tracking, the low-voltage direct-current input voltage is 20-60 v, and the output is the power grid standard of the power network (4).
4. The discrete direct-current system special for power generation building materials as claimed in claim 2, wherein the inverter (3) monitors the current and voltage of the input side circuit in real time to realize the online monitoring and management of the AI logistics.
5. The discrete dc system for power generation building material use according to claim 1, wherein the inverter (3) includes an inverter body (31) and a plug (32), and the inverter body (31) and the plug (32) are connected by a wire.
6. The discrete dc system for power generation building material according to claim 5, wherein an input terminal of the inverter body (31) is connected to an output terminal of a dc bus, an output terminal of the inverter body (31) is connected to a plug (32), and the plug (32) is connected to the power network (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120411878.XU CN215343924U (en) | 2021-02-24 | 2021-02-24 | Discrete direct current system special for power generation building materials |
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| CN202120411878.XU CN215343924U (en) | 2021-02-24 | 2021-02-24 | Discrete direct current system special for power generation building materials |
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| CN215343924U true CN215343924U (en) | 2021-12-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114665509A (en) * | 2022-05-25 | 2022-06-24 | 赫里欧绿能建筑科技有限公司 | Discrete inverter system for power generation building materials and operation control method |
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2021
- 2021-02-24 CN CN202120411878.XU patent/CN215343924U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114665509A (en) * | 2022-05-25 | 2022-06-24 | 赫里欧绿能建筑科技有限公司 | Discrete inverter system for power generation building materials and operation control method |
| CN114665509B (en) * | 2022-05-25 | 2022-09-16 | 赫里欧绿能建筑科技有限公司 | Discrete inverter system for power generation building materials and operation control method |
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Effective date of registration: 20220620 Address after: Room 09-1, 20th floor, PICC building, No. 12, Gaoxin Third Road, high tech Zone, Xi'an, Shaanxi 710075 Patentee after: Helio Green Energy Construction Technology Co.,Ltd. Patentee after: Helio new energy Co.,Ltd. Patentee after: HELIOU NEW ENERGY TECHNOLOGY (SHANGHAI) Co.,Ltd. Address before: 710075 room 07, 20 / F, PICC (Shaanxi) financial building, No. 12, Gaoxin Third Road, high tech Zone, Xi'an, Shaanxi Province Patentee before: Helio new energy Co.,Ltd. Patentee before: Helio new energy technology (Shanghai) Co., Ltd |
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