CN215378864U - Simple photovoltaic junction box - Google Patents
Simple photovoltaic junction box Download PDFInfo
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- CN215378864U CN215378864U CN202121791600.6U CN202121791600U CN215378864U CN 215378864 U CN215378864 U CN 215378864U CN 202121791600 U CN202121791600 U CN 202121791600U CN 215378864 U CN215378864 U CN 215378864U
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- junction box
- diode
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- flat part
- box body
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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 discloses a simple photovoltaic junction box, which comprises: the junction box comprises a junction box body, a light source and a light source, wherein the junction box body is provided with an accommodating cavity with an opening at the upper end, and an axial diode is accommodated in the accommodating cavity; the axial diode comprises a diode body, a first pin and a second pin, wherein one end of the diode body is fixedly connected with the first pin, the other end of the diode body is fixedly connected with the second pin, the first pin is provided with a first flat part, and the second pin is provided with a second flat part; the cover body is detachably arranged at the opening of the accommodating cavity and used for opening or closing the opening; one end of the cable penetrates through the junction box body to enter the accommodating cavity, and the cable is directly welded and fixed with the second flat part. By utilizing the utility model, the quick connection between the diode and the cable and the quick connection between the diode and the bus bar can be realized, the installation process is simplified, and the cost is reduced.
Description
Technical Field
The utility model relates to the technical field of photovoltaic junction boxes, in particular to a simple photovoltaic junction box.
Background
The photovoltaic junction box is a connecting device between a solar cell array formed by solar cell modules and the solar charging control device, and is mainly used for connecting and protecting the solar cell modules, connecting electric power generated by the solar cells with an external circuit and conducting current generated by the photovoltaic modules.
At present, an axial diode in a photovoltaic junction box is mostly used as a connecting piece through a conducting strip to connect the diode, a bus bar and a cable, a pin of the diode is welded on the conducting strip, the bus bar is welded on the conducting strip, and the cable is also welded on the conducting strip, so that connection is realized. For example, chinese patent publication No. CN204539079U discloses a photovoltaic junction box, which comprises an upper cover, a box body, a conductive sheet, a secondary sheet, a bottom plate, wherein the bottom plate is connected to the lower end of the box body, the lower end of the box body is provided with a buckle, the edge of the bottom plate is provided with a clamping groove mutually matched with the buckle, a cavity for embedding the conductive sheet is arranged in the box body, the edge of the cavity is provided with a convex bump, the lower end of the conductive sheet is mutually abutted to the upper end of the bottom plate, the upper end of the bottom plate is provided with a plurality of positioning columns, the conductive sheet is provided with positioning holes for the positioning columns to pass through and be matched with, the conductive sheet is further provided with a plurality of connection welding spots, the secondary sheet is provided with conductive pins extending outside, the conductive pins are connected with the connection welding spots through electric welding, and the upper cover is abutted to and buckled on the upper end of the box body. The installation mode enables welding spots in the photovoltaic junction box to be more, stability and reliability to be poor, and manufacturing and installation processes to be complex.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: in order to solve the technical problems that in the prior art, a conducting strip is required to be used as an intermediate connecting piece, and stability and reliability are poor, the utility model provides the simple photovoltaic junction box.
The technical scheme adopted by the utility model for solving the technical problems is as follows: a simplified photovoltaic junction box, comprising: the junction box comprises a junction box body, a light source and a light source, wherein the junction box body is provided with an accommodating cavity with an opening at the upper end, and an axial diode is accommodated in the accommodating cavity; the axial diode comprises a diode body, a first pin and a second pin, wherein one end of the diode body is fixedly connected with the first pin, the other end of the diode body is fixedly connected with the second pin, the first pin is provided with a first flat part, and the second pin is provided with a second flat part; the cover body is detachably arranged at the opening of the accommodating cavity and used for opening or closing the opening; one end of the cable penetrates through the junction box body to enter the accommodating cavity, and the cable is directly welded and fixed with the second flat part.
The bus bar is directly welded and fixed with the first flat part, and the bus bar is directly welded and fixed with the second flat part.
Furthermore, in order to fix the first pin and the second pin more stably, two left positioning columns and two right positioning columns are arranged on the bottom surface of the junction box body, and at least parts of the two left positioning columns are located below the first flat part and used for positioning the first flat part; at least part of the two right positioning columns is located below the second flat part and used for positioning the second flat part.
Furthermore, for convenience in installation, two first installation holes are formed in the first flat portion, the two left positioning columns correspond to the two first installation holes one to one, and the top of each left positioning column penetrates through the corresponding first installation hole.
Furthermore, for installation convenience, two second mounting holes are formed in the second flat portion, the two right positioning columns correspond to the two second mounting holes one by one, and the top of each right positioning column penetrates through the corresponding second mounting hole.
Further, in order to fix the diode body more stably, the bottom surface of the junction box body is provided with an arc-shaped groove, and a part of the diode body is accommodated in the arc-shaped groove.
Further, in order to fix the first flat part more stably, a supporting part is arranged on the bottom surface of the junction box body, the supporting part is positioned below the first flat part, and the lower end surface of the first flat part is abutted against the upper end surface of the supporting part.
Furthermore, in order to fix the first flat part more stably, a first reinforcing rib is arranged on the side surface of the left positioning column, and the upper end surface of the first reinforcing rib abuts against the lower end surface of the first flat part.
Furthermore, in order to fix the second flat part more stably, a second reinforcing rib is arranged on the side surface of the right positioning column, and the upper end surface of the second reinforcing rib abuts against the lower end surface of the second flat part.
Further, the plane A where the first flat part is located is parallel to the bottom surface of the junction box body, and the plane B where the second flat part is located is parallel to the bottom surface of the junction box body.
The simple photovoltaic junction box has the beneficial effects that the first pin and the second pin of the axial diode are pressed into flat shapes, the first flat part and the second flat part are directly used as welding surfaces and can be directly welded with a cable and a bus bar, and a conducting strip is not required to be additionally arranged in the photovoltaic junction box, so that the fast connection between the diode and the cable and the fast connection between the diode and the bus bar can be realized, welding spots in the photovoltaic junction box can be reduced, the safety, the stability and the reliability of the photovoltaic junction box are improved, meanwhile, the diode is directly welded with the cable and the bus bar, the heat dissipation of the diode can be accelerated, the electric efficiency of the diode is improved, and the use requirement of high current can be met. The LED lamp has a simple structure, not only simplifies the installation process and reduces the production cost, but also can improve the heat dissipation effect of the diode and prolong the service life of the diode.
Drawings
The utility model is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic structural diagram of the preferred embodiment of the present invention.
Fig. 2 is a schematic structural view of the junction box body of the present invention.
Fig. 3 is a schematic view of the structure of the axial diode of the present invention mounted in a receiving cavity.
Fig. 4 is a schematic diagram of the structure of an axial diode of the present invention.
FIG. 5 is a schematic view of the cable, bus bar and axial diode connection of the present invention.
Fig. 6 is a schematic view of the structure of the inside of the containing chamber of the present invention.
Fig. 7 is a cross-sectional view of the junction box body of the present invention.
In the figure: 1. junction box body, 2, axial diode, 3, lid, 4, cable, 5, busbar, 11, holding chamber, 12, opening, 13, left reference column, 14, right reference column, 15, arc wall, 16, supporting part, 21, diode body, 22, first pin, 23, second pin, 221, first flat portion, 231, second flat portion, 2211, first mounting hole, 2311, second mounting hole, 131, first strengthening rib, 141, second strengthening rib.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 7, the preferred embodiment of the present invention comprises: the junction box comprises a junction box body 1, wherein the junction box body 1 is provided with an accommodating cavity 11 with an opening at the upper end, and an axial diode 2 is arranged in the accommodating cavity 11; the axial diode 2 comprises a diode body 21, a first pin 22 and a second pin 23, one end of the diode body 21 is fixedly connected with the first pin 22, the other end of the diode body 21 is fixedly connected with the second pin 23, the first pin 22 is provided with a first flat part 221, and the second pin 23 is provided with a second flat part 231; the cover body 3 is detachably arranged at the opening of the accommodating cavity 11 and used for opening or closing the opening 12; one end of the cable 4 passes through the junction box body 1 and enters the accommodating cavity 11, and the cable 4 is directly welded and fixed with the second flat part 231.
The photovoltaic junction box further comprises a plurality of bus bars 5, the bus bars 5 are installed in the accommodating cavity 11, the bus bars 5 are directly welded and fixed with the first flat portion 221, and the bus bars 5 are directly welded and fixed with the second flat portion 231. The number of the bus bars 5 may be two, two mounting openings are formed in the bottom surface of the junction box body 1, one end of one bus bar 5 may pass through one mounting opening to be welded to the first flat portion 221, and the other bus bar 5 may pass through the other mounting opening to be welded to the second flat portion 231.
Two left positioning columns 13 and two right positioning columns 14 are arranged on the bottom surface of the junction box body 1, and at least parts of the two left positioning columns 13 are located below the first flat part 221 and used for positioning the first flat part 221; at least part of the two right positioning posts 14 is located below the second flat portion 231 for positioning the second flat portion 231.
Two first mounting holes 2211 are formed in the first flat portion 221, the two left positioning columns 13 correspond to the two first mounting holes 2211 one to one, and the top portions of the left positioning columns 13 penetrate through the first mounting holes 2211.
Two second mounting holes 2311 are formed in the second flat portion 231, the two right positioning pillars 14 correspond to the two second mounting holes 2311 one by one, and the top portions of the right positioning pillars 14 penetrate through the second mounting holes 2311.
The bottom surface of the junction box body 1 is provided with an arc-shaped groove 15, and a part of the diode body 21 is accommodated in the arc-shaped groove 15.
The bottom surface of the junction box body 11 is provided with a supporting portion 16, the supporting portion 16 is located below the first flat portion 22, and the lower end surface of the first flat portion 22 abuts against the upper end surface of the supporting portion 16.
The side surface of the left positioning column 13 is provided with a first rib 131, and the upper end surface of the first rib 131 abuts against the lower end surface of the first flat part 221.
The side surface of the right positioning column 14 is provided with a second rib 141, and the upper end surface of the second rib 141 abuts against the lower end surface of the second flat part 231.
The plane a of the first flat part 221 is parallel to the bottom surface of the junction box body 1, and the plane B of the second flat part 231 is parallel to the bottom surface of the junction box body 1.
The installation process comprises the following steps:
the first and second pins 22 and 23 of the axial diode 2 are press-molded to obtain the first and second flat portions 221 and 231. The cover 3 is opened, the diode body 21 of the molded axial diode 2 is placed on the arc-shaped groove 15, and meanwhile, the two first mounting holes 2211 on the first flat part 221 penetrate through the two left positioning pillars 13, and the two second mounting holes 2311 on the second flat part 231 penetrate through the two right positioning pillars 14. At this time, the lower end surface of the first flat part 221 may abut against the upper end surface of the support part 16, the lower end surface of the first flat part 221 abuts against the upper end surface of the first bead 131, and the lower end surface of the second flat part 231 abuts against the upper end surface of the second bead 141. One end of a cable 4 penetrates into the junction box body 1 to be directly welded with the second flat part 231, one end of one bus bar 5 enters the junction box body 1 from the mounting port to be directly welded with the first flat part 221, one end of the other bus bar 5 enters the junction box body 1 from the mounting port to be directly welded with the second flat part 231, after welding is finished, glue can be poured into the accommodating cavity 11, and finally the cover body 3 is covered.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined by the scope of the claims.
Claims (10)
1. A simplified photovoltaic junction box, comprising:
the junction box comprises a junction box body (1), wherein the junction box body (1) is provided with an accommodating cavity (11) with an opening at the upper end, and an axial diode (2) is arranged in the accommodating cavity (11); the axial diode (2) comprises a diode body (21), a first pin (22) and a second pin (23), one end of the diode body (21) is fixedly connected with the first pin (22), the other end of the diode body (21) is fixedly connected with the second pin (23), the first pin (22) is provided with a first flat part (221), and the second pin (23) is provided with a second flat part (231);
the cover body (3) is detachably arranged at the opening of the accommodating cavity (11) and used for opening or closing the opening (12);
one end of the cable (4) penetrates through the junction box body (1) to enter the accommodating cavity (11), and the cable (4) is directly welded and fixed with the second flat part (231).
2. The junction box according to claim 1, further comprising a plurality of bus bars (5), wherein the plurality of bus bars (5) are installed in the accommodating cavity (11), the bus bars (5) are directly welded and fixed to the first flat portion (221), and the bus bars (5) are directly welded and fixed to the second flat portion (231).
3. The simplified photovoltaic junction box according to claim 1, wherein the bottom surface of the junction box body (1) is provided with two left positioning columns (13) and two right positioning columns (14), at least part of the two left positioning columns (13) is located below the first flat part (221) for positioning the first flat part (221); at least part of the two right positioning columns (14) is positioned below the second flat part (231) and used for positioning the second flat part (231).
4. The simplified photovoltaic junction box of claim 3, wherein the first flat portion (221) has two first mounting holes (2211), two left positioning pillars (13) are corresponding to the two first mounting holes (2211), and the top of the left positioning pillars (13) passes through the first mounting holes (2211).
5. The simplified photovoltaic junction box according to claim 3, wherein the second flat portion (231) has two second mounting holes (2311), the two right positioning pillars (14) correspond to the two second mounting holes (2311) one by one, and the top of the right positioning pillar (14) passes through the second mounting holes (2311).
6. The junction box according to claim 1, wherein the bottom surface of the junction box body (1) is provided with an arc-shaped groove (15), and a part of the diode body (21) is accommodated in the arc-shaped groove (15).
7. The simple photovoltaic junction box of claim 1, wherein a support portion (16) is disposed on a bottom surface of the junction box body (1), the support portion (16) is located below the first flat portion (221), and a lower end surface of the first flat portion (221) abuts against an upper end surface of the support portion (16).
8. The simplified photovoltaic junction box according to claim 4, wherein a first rib (131) is disposed on a side surface of the left positioning column (13), and an upper end surface of the first rib (131) abuts against a lower end surface of the first flat portion (221).
9. The simplified photovoltaic junction box according to claim 5, wherein a second reinforcing rib (141) is disposed on a side surface of the right positioning column (14), and an upper end surface of the second reinforcing rib (141) abuts against a lower end surface of the second flat portion (231).
10. The junction box of claim 1, wherein a plane A of the first flat part (221) is parallel to a bottom surface of the junction box body (1), and a plane B of the second flat part (231) is parallel to the bottom surface of the junction box body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121791600.6U CN215378864U (en) | 2021-08-02 | 2021-08-02 | Simple photovoltaic junction box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121791600.6U CN215378864U (en) | 2021-08-02 | 2021-08-02 | Simple photovoltaic junction box |
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| Publication Number | Publication Date |
|---|---|
| CN215378864U true CN215378864U (en) | 2021-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121791600.6U Active CN215378864U (en) | 2021-08-02 | 2021-08-02 | Simple photovoltaic junction box |
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| CN (1) | CN215378864U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114039260A (en) * | 2022-01-11 | 2022-02-11 | 江苏泽润新材料有限公司 | Assembling method of photovoltaic junction box |
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2021
- 2021-08-02 CN CN202121791600.6U patent/CN215378864U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114039260A (en) * | 2022-01-11 | 2022-02-11 | 江苏泽润新材料有限公司 | Assembling method of photovoltaic junction box |
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Address after: No.16, Yaxi Road, Zhixi Town, Jintan District, Changzhou City, Jiangsu Province 213200 Patentee after: Jiangsu Zerun Xinneng Technology Co.,Ltd. Address before: 213000 No. 16, Yaxi Road, Zhixi Town, Jintan District, Changzhou City, Jiangsu Province Patentee before: Jiangsu Zerun New Material Co.,Ltd. |