CN211089584U - Photovoltaic junction box - Google Patents
Photovoltaic junction box Download PDFInfo
- Publication number
- CN211089584U CN211089584U CN201922387048.3U CN201922387048U CN211089584U CN 211089584 U CN211089584 U CN 211089584U CN 201922387048 U CN201922387048 U CN 201922387048U CN 211089584 U CN211089584 U CN 211089584U
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- CN
- China
- Prior art keywords
- box
- heat
- box body
- copper sheet
- photovoltaic junction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 41
- 229910052802 copper Inorganic materials 0.000 claims abstract description 33
- 239000010949 copper Substances 0.000 claims abstract description 33
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000000565 sealant Substances 0.000 claims description 16
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 238000004382 potting Methods 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002470 thermal conductor Substances 0.000 claims 1
- 238000005266 casting Methods 0.000 abstract description 15
- 239000003292 glue Substances 0.000 abstract description 15
- 230000000694 effects Effects 0.000 description 8
- 230000017525 heat dissipation Effects 0.000 description 5
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Images
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
Landscapes
- Photovoltaic Devices (AREA)
Abstract
The utility model relates to a solar cell produces technical field, specifically discloses a photovoltaic terminal box. This photovoltaic terminal box includes box body, casting glue sealing, lid and heat conduction spare, is provided with the copper sheet in the box body, has placed the diode on the copper sheet, and the casting glue sealing sets up in the box body, and copper sheet and diode all are located inside the casting glue sealing, and on the box body was located to the lid, heat conduction spare part was located inside the casting glue sealing to with the copper sheet butt, one side that the casting glue sealing was kept away from to the heat conduction spare links to each other with the lid. The utility model provides a photovoltaic terminal box, when the diode generates heat, the copper sheet can shift the heat of diode to the heat-conducting piece on, the heat-conducting piece shifts this heat to the box cover rapidly to thermal timely discharge on the diode prevents that electronic component in the photovoltaic terminal box from receiving the damage, guarantees the normal use of photovoltaic terminal box.
Description
Technical Field
The utility model relates to a solar cell produces technical field, especially relates to a photovoltaic terminal box.
Background
With the increasing exhaustion of energy sources, solar energy plays an increasingly important role as a clean and renewable energy source in the field of energy utilization. In a solar power generation apparatus, a photovoltaic junction box is a device for connecting a protection battery matrix and a charge control system. Electronic components inside the photovoltaic junction box can generate heat during working, so that the internal temperature of the junction box is too high, and great pressure difference can be generated inside and outside the junction box, so that the electronic components in the junction box are easily damaged.
In the prior art, a copper sheet is usually arranged at the bottom of a diode of a photovoltaic junction box to conduct out heat of the diode, but in order to guarantee the sealing effect of the junction box, the common junction box is sealed by pouring sealant, and after the heat of the diode is radiated to the copper sheet, the heat is dissipated to the environment through the pouring sealant, but the heat conductivity coefficient of the pouring sealant is far lower than that of the copper sheet, so that the diode is conducted, the temperature of the diode part is highest, and the high heat easily causes thermal breakdown of the diode and deformation of the junction box, so that the protection effect is.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a photovoltaic terminal box, simple structure can in time derive the heat on the diode, guarantees the normal work of diode and terminal box.
As the conception, the utility model adopts the technical proposal that:
a photovoltaic junction box, comprising:
the LED lamp box comprises a box body, a light source and a light source, wherein a copper sheet is arranged in the box body, and a diode is placed on the copper sheet;
the pouring sealant sealing part is arranged in the box body, and the copper sheet and the diode are both positioned in the pouring sealant sealing part;
the box cover is arranged on the box body in a covering manner;
the heat conducting part is partially located inside the pouring sealant sealing part and abutted against the copper sheet, and the heat conducting part is far away from one side of the pouring sealant sealing part and connected with the box cover.
As a preferable aspect of the photovoltaic junction box, the heat conducting member is detachably attached to the box cover.
As a preferred scheme of the photovoltaic junction box, a buckle is arranged on one of the heat conducting piece and the box cover, a clamping groove is arranged on the other one of the heat conducting piece and the box cover, and the buckle is clamped in the clamping groove.
As a preferred scheme of the photovoltaic junction box, a plurality of heat dissipation bumps are arranged on one side of the heat conducting piece, which is far away from the sealing portion of the potting adhesive.
As a preferable scheme of the photovoltaic junction box, the heat conducting member is made of an insulating material.
As a preferred scheme of photovoltaic terminal box, the lid adopts the metal material to make.
As a preferred scheme of photovoltaic terminal box, be provided with the sealing member between box body and the lid.
As a preferable scheme of the photovoltaic junction box, an annular groove is formed in the box body or the box cover and used for accommodating the sealing element.
As a preferred scheme of photovoltaic terminal box, the surface coating of box body and lid has the anticorrosive coating.
As a preferable scheme of the photovoltaic junction box, one end of the box cover is hinged with the box body).
The utility model has the advantages that:
the utility model provides a photovoltaic terminal box, this photovoltaic terminal box include that box body, lid locate lid and the heat conduction piece on the box body, are provided with the casting glue sealing in the box body, and diode and copper sheet all are located the casting glue sealing, and the one end and the copper sheet of heat conduction piece contact, and the other end stretches out the casting glue sealing and links to each other with the lid. When the diode generates heat, the copper sheet can transfer the heat of the diode to the heat conducting piece, and the heat conducting piece rapidly transfers the heat to the box cover, so that the heat on the diode is timely discharged, electronic elements in the photovoltaic junction box are prevented from being damaged, and the normal use of the photovoltaic junction box is ensured.
Drawings
Fig. 1 is a schematic structural diagram of a photovoltaic junction box provided by an embodiment of the present invention.
In the figure:
1-box body; 2-pouring sealant sealing part; 3-a box cover; 31-a bump; 4-a thermally conductive member; 5-a base; 6-copper sheet; 7-diode.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
As shown in fig. 1, this embodiment provides a photovoltaic terminal box, this photovoltaic terminal box includes box body 1, casting glue sealing 2, lid 3 and heat conduction piece 4, wherein, be provided with copper sheet 6 in the box body 1, diode 7 has been placed on the copper sheet 6, casting glue sealing 2 sets up in box body 1, copper sheet 6 and diode 7 all are located casting glue sealing 2 inside, lid 3 lid is located on box body 1, heat conduction piece 4 part is located casting glue sealing 2 inside to with copper sheet 6 butt, one side that heat conduction piece 4 kept away from casting glue sealing 2 links to each other with lid 3.
Specifically, when the photovoltaic junction box is installed, firstly, a base 5 is arranged in the box body 1, the base 5 is sequentially provided with a heat conducting piece 4, a copper sheet 6 and a diode 7, and the base 5 plays a role in bearing the heat conducting piece 4, the copper sheet 6 and the diode 7; in order to increase the sealing performance of the photovoltaic junction box, the box body 1 is sealed by pouring sealant, so that the pouring sealant sealing part 2 is formed, the heat conducting piece 4 is of a strip-shaped structure, when the box body 1 is sealed by the pouring sealant, one end of the heat conducting piece 4 is sealed together with the copper sheet 6 and the diode 7, the other end of the heat conducting piece 4 extends out of the pouring sealant sealing part 2 to form a free end of the heat conducting piece 4, and the free end of the heat conducting piece 4 is connected with the box cover 3.
The photovoltaic terminal box that this embodiment provided, when diode 7 generates heat, copper sheet 6 can shift diode 7's heat to on the heat conduction piece 4, heat conduction piece 4 with this heat transfer to lid 3 rapidly to thermal in time discharges on the diode 7, prevent that the electronic component in the photovoltaic terminal box from receiving the damage, guarantee the normal use of photovoltaic terminal box.
In this embodiment, as shown in fig. 1, the heat conducting member 4 is bent to form a U-shaped structure, the U-shaped structure includes two side arms and a bent section connecting the two side arms, wherein an upper surface of one side arm is in contact with the copper sheet 6, and a surface of the other side arm is in contact with the box cover 3, so as to increase contact areas between the heat conducting member 4 and the copper sheet 6 and between the heat conducting member 4 and the box cover 3 as much as possible, thereby achieving large-area heat transfer and further improving heat transfer effect. Preferably, one side arm of the heat conducting member 4 contacting the copper sheet 6 can be arranged in a wave shape or a circular arc shape to increase the heat transfer area and improve the heat transfer effect.
In other embodiments, heat-conducting piece 4 can also set up to serpentine structure, serpentine structure's one end contacts with copper sheet 6, serpentine structure's the other end contacts with lid 3, the interlude spiral sets up in casting glue sealing 2, heat transfer on copper sheet 6 not only can be realized to the interlude of heat-conducting piece 4, can also derive the heat that diode 7 conducts to in the casting glue sealing 2, further guarantee the heat conduction effect of heat-conducting piece 4, make the electronic component of inside in the photovoltaic terminal box can not suffer the damage because of the high and too big internal and external pressure difference of temperature.
Further, the heat conductive member 4 is detachably attached to the case cover 3. Specifically, a buckle is arranged on one of the heat conducting piece 4 and the box cover 3, and a clamping groove is arranged on the other one of the heat conducting piece and the box cover, and the buckle is clamped in the clamping groove. In this embodiment, as shown in fig. 1, the protrusion 31 extending downward is provided on the box cover 3, the protrusion 31 is provided with a clamping groove, the heat conducting member 4 is provided with a buckle, and the buckle is clamped in the clamping groove of the protrusion 31, so as to realize detachable connection between the protrusion and the clamping groove, and facilitate an operator to open the box cover 3, thereby checking the condition of the electronic element in the photovoltaic junction box.
Further, one end of the box cover 3 is hinged with the box body 1. An operator can open the box cover 3 by moving one end of the box cover 3 and rotating the box cover 3 relative to the box body 1, which is convenient and fast. Particularly, be fixed with the pivot in the one end of box body 1, on the lid 3 was worn to locate by the pivot, lid 3 can revolute the rotation of axes to realize the articulated between lid 3 and the box body 1.
Preferably, the box cover 3 is made of metal materials, so that the heat conduction effect is good, and heat on the diode 7 can be timely led out.
Preferably, the heat conducting piece 4 is specifically an insulating heat conducting silica gel sheet, and the insulating heat conducting silica gel sheet is made of a softer material, has better compression performance and better heat conducting stability.
Furthermore, one side of the heat conducting piece 4, which is far away from the potting adhesive sealing part 2, is provided with a plurality of heat dissipation convex blocks, and the plurality of heat dissipation convex blocks arranged on the heat conducting piece 4 can increase the heat dissipation area of the heat conducting piece 4, so that the heat dissipation efficiency of the heat conducting piece 4 is improved.
In a solar power generation apparatus, a photovoltaic junction box is a device for connecting a protection battery matrix and a charge control system. Therefore, the photovoltaic junction box is generally exposed to the outside along with the cell matrix and subjected to various environmental changes, so that the photovoltaic junction box is very easily damaged.
In order to prevent the inside water of photovoltaic terminal box, guarantee the leakproofness of photovoltaic terminal box, be provided with the sealing member between box body 1 and the lid 3. The sealing element is specifically rubber, and the sealing effect is better. Through setting up the sealing member, can increase this photovoltaic terminal box's leakproofness, block that solid and liquid pollutants such as water and dust from the external environment get into inside the photovoltaic terminal box, influence the use of the inside electronic component of photovoltaic terminal box.
Specifically, the box body 1 or the box cover 3 is provided with an annular groove for accommodating a sealing member. Through being provided with annular groove on box body 1 or lid 3 to set up the sealing member in annular groove, not only strengthened the leakproofness between box body 1 and the lid 3, can make the sealing member fix more firm moreover, be difficult for droing.
In order to prevent the photovoltaic junction box from being corroded on the surface due to being in the open air for a long time, in the embodiment, the outer surfaces of the box body 1 and the box cover 3 are coated with the anticorrosive layer, so that the corrosion resistance of the photovoltaic junction box can be increased, the service life of the photovoltaic junction box is prolonged, and the appearance of the photovoltaic junction box is attractive.
The photovoltaic junction box provided by the embodiment has the advantages of simple structure and low manufacturing cost. Through setting up heat-conducting member 4, can derive the heat on the diode 7 rapidly to the outside of photovoltaic terminal box is scattered through lid 3 of metal material, makes the inside electronic component of photovoltaic terminal box can not suffer the damage because of the high temperature and the too big inside and outside pressure differential. The sealing element is arranged between the box body 1 and the box cover 3, so that the sealing property of the photovoltaic junction box can be improved, the waterproof and dustproof effects are achieved, and solid and liquid pollutants such as water, dust and the like from the external environment can be prevented from entering the photovoltaic junction box; the outer surfaces of the box body 1 and the box cover 3 are coated with the anticorrosive layers, so that the corrosion resistance of the photovoltaic junction box can be improved, and the service life of the photovoltaic junction box is prolonged; through articulating lid 3 in box body 1, make things convenient for operating personnel to open lid 3 in order to overhaul the inside electronic component of photovoltaic terminal box.
The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A photovoltaic junction box, comprising:
the LED lamp box comprises a box body (1), wherein a copper sheet (6) is arranged in the box body, and a diode (7) is placed on the copper sheet (6);
the pouring sealant sealing part (2) is arranged in the box body (1), and the copper sheet (6) and the diode (7) are both positioned in the pouring sealant sealing part (2);
the box cover (3) is arranged on the box body (1) in a covering mode;
heat-conducting piece (4), heat-conducting piece (4) part is located inside pouring sealant sealing part (2), and with copper sheet (6) butt, heat-conducting piece (4) are kept away from one side of pouring sealant sealing part (2) with lid (3) link to each other.
2. The photovoltaic junction box according to claim 1, characterized in that said thermal conductor member (4) is removably connected to said box cover (3).
3. The photovoltaic junction box according to claim 2, wherein one of the heat conducting member (4) and the box cover (3) is provided with a buckle, and the other is provided with a clamping groove, and the buckle is clamped in the clamping groove.
4. The photovoltaic junction box according to claim 1, wherein a side of the heat conducting member (4) remote from the potting adhesive seal (2) is provided with a plurality of heat dissipating bumps.
5. The photovoltaic junction box according to claim 1, characterized in that said heat-conducting element (4) is made of insulating material.
6. The photovoltaic junction box according to claim 1, wherein the box cover (3) is made of metal.
7. The photovoltaic junction box according to claim 1, characterized in that a seal is provided between the box body (1) and the box cover (3).
8. The photovoltaic junction box according to claim 7, characterized in that the box body (1) or the box cover (3) is provided with an annular groove for receiving the seal.
9. The photovoltaic junction box according to claim 1, characterized in that the outer surfaces of the box body (1) and the box cover (3) are coated with an anti-corrosion layer.
10. The photovoltaic junction box according to claim 1, characterized in that one end of the box cover (3) is hinged to the box body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922387048.3U CN211089584U (en) | 2019-12-26 | 2019-12-26 | Photovoltaic junction box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922387048.3U CN211089584U (en) | 2019-12-26 | 2019-12-26 | Photovoltaic junction box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211089584U true CN211089584U (en) | 2020-07-24 |
Family
ID=71631639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922387048.3U Expired - Fee Related CN211089584U (en) | 2019-12-26 | 2019-12-26 | Photovoltaic junction box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211089584U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115835608A (en) * | 2023-02-16 | 2023-03-21 | 深圳市中旭新能源有限公司 | Packaging structure for distributed heat dissipation planning and photovoltaic power optimizer |
-
2019
- 2019-12-26 CN CN201922387048.3U patent/CN211089584U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115835608A (en) * | 2023-02-16 | 2023-03-21 | 深圳市中旭新能源有限公司 | Packaging structure for distributed heat dissipation planning and photovoltaic power optimizer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200724 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |