CN115276552A - A dustproof heat dissipation formula photovoltaic terminal box for photovoltaic power generation - Google Patents

A dustproof heat dissipation formula photovoltaic terminal box for photovoltaic power generation Download PDF

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Publication number
CN115276552A
CN115276552A CN202211076872.7A CN202211076872A CN115276552A CN 115276552 A CN115276552 A CN 115276552A CN 202211076872 A CN202211076872 A CN 202211076872A CN 115276552 A CN115276552 A CN 115276552A
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CN
China
Prior art keywords
heat dissipation
junction box
power generation
photovoltaic power
cavity
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Application number
CN202211076872.7A
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Chinese (zh)
Inventor
陈岑
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Individual
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Individual
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Priority to CN202211076872.7A priority Critical patent/CN115276552A/en
Publication of CN115276552A publication Critical patent/CN115276552A/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/30—Electrical components
    • H02S40/34—Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/08—Distribution boxes; Connection or junction boxes
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/08—Distribution boxes; Connection or junction boxes
    • H02G3/088—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings or inlets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/08—Distribution boxes; Connection or junction boxes
    • H02G3/16—Distribution boxes; Connection or junction boxes structurally associated with support for line-connecting terminals within the box
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/30—Electrical components
    • H02S40/34—Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
    • H02S40/345—Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes with cooling means associated with the electrical connection means, e.g. cooling means associated with or applied to the junction box
    • 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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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Photovoltaic Devices (AREA)

Abstract

The invention relates to the technical field of photovoltaic junction boxes, in particular to a dustproof heat-dissipation type photovoltaic junction box for photovoltaic power generation, which overcomes the defects that an existing junction box is easy to accumulate dust and is easy to ignite at high temperature.

Description

A dustproof heat dissipation formula photovoltaic terminal box for photovoltaic power generation
Technical Field
The invention relates to the technical field of photovoltaic junction boxes, in particular to a dustproof heat dissipation type photovoltaic junction box for photovoltaic power generation.
Background
The photovoltaic junction box is one of important components of a solar assembly, and mainly has the effects that electric power generated by a solar cell is connected with an external circuit, the circuit is positioned in a wiring part in the photovoltaic junction box, and due to the fact that the contact area is large, high temperature is often generated easily after the circuit is electrified, fire disasters are not prone to occurring at the temperature under the normal condition, dust is prone to being accumulated in the junction box after the photovoltaic junction box is used for a long time, the dust can further cause the internal temperature of the junction box to rise, particularly, photovoltaic equipment is exposed to the sun for a long time and is prone to being ignited, and finally the equipment is damaged.
Disclosure of Invention
The invention aims to solve the defects that the existing junction box is easy to accumulate dust and is easy to ignite at high temperature, and provides a dustproof heat-dissipation type photovoltaic junction box for photovoltaic power generation.
In order to achieve the purpose, the invention adopts the following technical scheme:
a dustproof heat dissipation type photovoltaic junction box for photovoltaic power generation comprises a box body and a cover plate fixed to the top of the box body through bolts, wherein a lower wiring seat is arranged on the inner side of the bottom of the box body, a heat dissipation cavity and an air induction cavity are respectively formed in the bottom of the lower wiring seat of the box body, a heat dissipation fan is arranged at the end of the air induction cavity, clamping rods are connected to the inner portions of the periphery of the cover plate through bearings, connecting rings are connected to the outer portions of the clamping rods in a threaded mode, and the connecting rings are fixedly connected with upper wiring seats in a sleeved mode through the connecting rings;
be provided with two sets of corresponding semicircular clamping plates between lower junction box and the last junction box respectively, and lower junction box upper surface is provided with the heat conduction gasket, and the bottom evenly distributed welding of lower junction box has the heat-conducting plate of arranging the heat dissipation intracavity portion in a plurality of, the heat dissipation chamber is located and is provided with the dryer between the heat-conducting plate.
Preferably, the clamping bar is located the inboard one end of apron and all has cup jointed synchronous pulley to through synchronous pulley around being equipped with the hold-in range, one of them the tip of clamping bar runs through and extends to the top outside of apron.
Preferably, all the peripheries of the top of the lower wiring seat are welded with positioning rings corresponding to the clamping rods.
Preferably, the air exchanging cylinder is conical, two ends of the air exchanging cylinder are respectively communicated with the air inducing cavity and the outside of the box body, and the inner diameter of one end, close to the heat dissipation fan, of the air exchanging cylinder is larger than that of the other end of the air exchanging cylinder.
Preferably, the induced air cavity and the heat dissipation cavity are separated by two inclined plates, and cooling liquid is injected into the heat dissipation cavity.
Preferably, the both ends evenly distributed of box body is provided with the wiring end that corresponds with splint, the tip threaded connection of wiring end has sealed spiral cover.
Preferably, the air exchange cylinder, the heat conducting plate and the heat conducting gasket are all made of copper.
Compared with the prior art, the invention has the beneficial effects that:
this photovoltaic terminal box's heat dissipation mode makes the inside junction part of box body seal with the outside completely, and outside dust can not get into the inside of box body, and the inside refrigerating fluid of heat dissipation intracavity does not contact with the air, not only can effectively dispel the heat for cable junction part, has also reduced the consumption of coolant liquid, has improved the life of terminal box.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a dustproof heat dissipation type photovoltaic junction box for photovoltaic power generation according to the present invention;
FIG. 2 is a schematic cross-sectional structural view of a dustproof heat dissipation type photovoltaic junction box for photovoltaic power generation according to the present invention;
FIG. 3 is a schematic view of a partial structure of a box body of a dustproof heat dissipation type photovoltaic junction box for photovoltaic power generation according to the present invention;
fig. 4 is a schematic cross-sectional structural view of a dustproof heat dissipation type photovoltaic junction box for photovoltaic power generation in fig. 3 according to the present invention;
fig. 5 is a schematic oblique view structural diagram of fig. 4 of a dustproof heat dissipation type photovoltaic junction box for photovoltaic power generation according to the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a box body; 2. a lower wiring seat; 3. a heat conducting plate; 4. a wind-guiding cavity; 5. air changing cylinders; 6. a heat radiation fan; 7. a positioning ring; 8. a cover plate; 9. a clamping bar; 10. a connecting ring; 11. an upper wire holder; 12. a splint; 13. a synchronous belt; 14. a thermally conductive gasket; 15. a terminal; 16. sealing and screwing the cover; 17. and a heat dissipation cavity.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-5, a first embodiment of the present invention provides a dustproof heat dissipation type photovoltaic junction box for photovoltaic power generation, including a box body 1 and a cover plate 8 fixed on the top of the box body 1 by bolts, a lower wiring seat 2 is arranged on the inner side of the bottom of the box body 1, terminals 15 corresponding to the clamping plates 12 are uniformly distributed on two ends of the box body 1, the ends of the terminals 15 are connected with sealing screw caps 16 by screw threads, the inner part of the periphery of the cover plate 8 is connected with clamping rods 9 by bearings, the outer part of the clamping rods 9 is connected with a connecting ring 10 by screw threads, which is fixedly connected with an upper wiring seat 11 by the connecting ring 10, positioning rings 7 corresponding to the clamping rods 9 are welded on the periphery of the top of the lower wiring seat 2, one ends of the clamping rods 9 on the inner side of the cover plate 8 are connected with synchronous pulleys and wound with synchronous belts 13 by the synchronous pulleys, the end of one of the clamping rod 9 penetrates and extends to the outer side of the top of the cover plate 8, two sets of corresponding semicircular clamping plates 12 are respectively arranged between the lower wiring seat 2 and the upper wiring seat 11, and heat conducting gaskets 14 are arranged on the upper wiring seat 2, so that the connecting wires can be prevented from being pulled by the connecting with the connecting clamp rings 12 by the other clamping rods 9 by rotating the synchronous pulleys, and pushing the connecting clamp rings 14;
furthermore, the box body 1 is positioned at the bottom of the lower wiring seat 2 and is respectively provided with a heat dissipation cavity 17 and an induced air cavity 4, the end part of the induced air cavity 4 is provided with a heat dissipation fan 6, a plurality of heat conduction plates 3 arranged in the heat dissipation cavity 17 are uniformly distributed and welded at the bottom of the lower wiring seat 2, an air exchange cylinder 5 is arranged between the heat conduction plates 3 of the heat dissipation cavity 17, the induced air cavity 4 and the heat dissipation cavity 17 are separated by two inclined plates, cooling liquid is injected into the heat dissipation cavity 17, the air exchange cylinder 5, the heat conduction plates 3 and the heat conduction gaskets 14 are made of copper, so that the temperature of the wiring part of the cable is transmitted to the heat conduction plates 3 through the heat conduction gaskets 14 and extends into the cooling liquid in the heat dissipation cavity 17 for heat dissipation, the heat of the cooling liquid is contacted with the outside air through the air exchange cylinder 5, the flow rate of the air in the air exchange cylinder 5 is increased through the inner wall of the heat dissipation fan 6, and the heat dissipation of the air exchange cylinder 5 is accelerated to dissipate the heat of the cable, and the cable is strong in practicability;
the air exchange cylinder 5 is conical, two ends of the air exchange cylinder 5 are respectively communicated with the air induction cavity 4 and the outside of the box body 1, and the inner diameter of one end, close to the heat dissipation fan 6, of the air exchange cylinder 5 is larger than that of the other end, so that the air speed can be further accelerated, and the heat dissipation of the internal cooling liquid is better realized;
to sum up, this kind of heat dissipation mode makes box body 1 inside junction part totally with the outside closed, and outside dust can not get into the inside of box body 1, and the inside refrigerant liquid of heat dissipation chamber 17 does not contact with the air, not only can effectively dispel the heat for cable junction part, has also reduced the consumption of coolant liquid, has improved the life of terminal box.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically coupled, may be directly coupled, or may be indirectly coupled through an intermediary. To those of ordinary skill in the art, the specific meanings of the above terms in the present invention are understood according to specific situations. In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, 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 specifically defined otherwise.

Claims (7)

1. A dustproof heat dissipation type photovoltaic junction box for photovoltaic power generation comprises a box body (1) and a cover plate (8) fixed to the top of the box body (1) through bolts, and is characterized in that a lower wiring seat (2) is arranged on the inner side of the bottom of the box body (1), a heat dissipation cavity (17) and an air induction cavity (4) are respectively formed in the bottom of the lower wiring seat (2) of the box body (1), a heat dissipation fan (6) is arranged at the end of the air induction cavity (4), clamping rods (9) are connected to the inner portion of the periphery of the cover plate (8) through bearings, a connecting ring (10) is connected to the outer threads of the clamping rods (9), and an upper wiring seat (11) is fixedly connected to the connecting ring (10) in a sleeved mode;
lower junction box (2) and last junction box (11) between be provided with two sets of corresponding semicircular clamping plates (12) respectively, and lower junction box (2) upper surface is provided with heat conduction gasket (14), and the bottom evenly distributed welding of lower junction box (2) has heat-conducting plate (3) a plurality of arranging heat dissipation chamber (17) inside in, heat dissipation chamber (17) are located and are provided with between heat-conducting plate (3) and trade dryer (5).
2. The dustproof heat dissipation type photovoltaic junction box for photovoltaic power generation as claimed in claim 1, wherein one end of each clamping rod (9) located on the inner side of the cover plate (8) is sleeved with a synchronous pulley, a synchronous belt (13) is wound around the synchronous pulley, and the end of one clamping rod (9) penetrates through and extends to the outer side of the top of the cover plate (8).
3. The dustproof heat dissipation type photovoltaic junction box for photovoltaic power generation as claimed in claim 1, wherein the positioning rings (7) corresponding to the clamping rods (9) are welded around the top of the lower wiring seat (2).
4. The dustproof heat dissipation type photovoltaic junction box for photovoltaic power generation as claimed in claim 1, wherein the air exchange cylinder (5) is conical, two ends of the air exchange cylinder (5) are respectively communicated with the air inducing cavity (4) and the outside of the box body (1), and the inner diameter of one end, close to the heat dissipation fan (6), of the air exchange cylinder (5) is larger than that of the other end.
5. The dustproof heat dissipation type photovoltaic junction box for photovoltaic power generation as claimed in claim 1, wherein the induced air cavity (4) is separated from the heat dissipation cavity (17) by two inclined plates, and the heat dissipation cavity (17) is filled with a cooling liquid.
6. The dustproof heat dissipation type photovoltaic junction box for photovoltaic power generation as claimed in claim 1, wherein the two ends of the box body (1) are uniformly provided with wiring terminals (15) corresponding to the clamping plates (12), and the end parts of the wiring terminals (15) are in threaded connection with sealing screw caps (16).
7. The dustproof heat dissipation type photovoltaic junction box for photovoltaic power generation as claimed in claim 1, wherein the air exchange barrel (5), the heat conduction plate (3) and the heat conduction gasket (14) are all made of copper.
CN202211076872.7A 2022-09-05 2022-09-05 A dustproof heat dissipation formula photovoltaic terminal box for photovoltaic power generation Withdrawn CN115276552A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211076872.7A CN115276552A (en) 2022-09-05 2022-09-05 A dustproof heat dissipation formula photovoltaic terminal box for photovoltaic power generation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211076872.7A CN115276552A (en) 2022-09-05 2022-09-05 A dustproof heat dissipation formula photovoltaic terminal box for photovoltaic power generation

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CN115276552A true CN115276552A (en) 2022-11-01

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116861355A (en) * 2023-07-24 2023-10-10 山东泰霖环保科技有限公司 Solar power generation efficiency monitoring and management method based on industrial data analysis

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116861355A (en) * 2023-07-24 2023-10-10 山东泰霖环保科技有限公司 Solar power generation efficiency monitoring and management method based on industrial data analysis
CN116861355B (en) * 2023-07-24 2024-06-21 山东泰霖环保科技有限公司 Solar power generation efficiency monitoring and management method based on industrial data analysis

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Application publication date: 20221101