CN102569458A - Junction box of solar photovoltaic cell - Google Patents
Junction box of solar photovoltaic cell Download PDFInfo
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- CN102569458A CN102569458A CN2012100133930A CN201210013393A CN102569458A CN 102569458 A CN102569458 A CN 102569458A CN 2012100133930 A CN2012100133930 A CN 2012100133930A CN 201210013393 A CN201210013393 A CN 201210013393A CN 102569458 A CN102569458 A CN 102569458A
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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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Abstract
The invention relates to a junction box of a solar photovoltaic cell, belonging to the technical field of solar photovoltaic power supply assemblies. The junction box comprises a junction box body, a cover, a group of conducting strips and a group of bypass diodes and is characterized in that the junction box body is also provided with a built-in shell; the group of conducting strips and the group of bypass diodes are arranged in the built-in shell; the group of bypass diodes are electrically connected with the group of conducting strips in a parallel connection manner; conducting strip pins of the group of conducting strips pass through the built-in shell and the junction box body so as to extend to a hollow-out cavity in an exposed state; and a conducting ferrule is respectively fixed on the front conducting strip and the tail conducting strip in the group of conducting strips, wherein one conducting ferrule is inserted into an anode socket, and the other conducting ferrule is inserted into a cathode socket. The junction box disclosed by the invention has the advantages of prolonging the service life of the bypass diodes, ensuring an effect of connection between a solar battery lead and an external lead, reducing the manufacturing, installing and maintaining difficulties and ensuring that the situation that the bypass diodes are influenced in the process of fixedly connecting a bus bar with the conducting strip pins cannot occur.
Description
Technical field
The invention belongs to solar photovoltaic power component technology field, be specifically related to a kind of terminal box of solar-energy photo-voltaic cell
Background technology
such as industry the reason of knowledge; The terminal box of solar-energy photo-voltaic cell is the vitals of output sun-generated electric power; In use; Usually adhere on the backboard of solar photovoltaic assembly by means of silica gel or similar sicker; As the transition apparatus between solar cell lead and the external lead wire; Its structure generally includes the terminal box box body, be arranged at a plurality of bypass diodes, electric wire and electric wire connector in the terminal box box body, wherein: the effect of bypass diode be prevent reverse charging and undermine solar-energy photo-voltaic cell with prevent because of a solar-energy photo-voltaic cell short circuit causes whole solar photovoltaic battery component can't operate as normal.
are in the solar energy power generating process; The electric current that cause flows through bypass diode is bigger; Thereby make the bypass diode heating; If the heat that can not in time and effectively bypass diode be distributed transmits and diffusion to the external world, so very easily undermine bypass diode, make bypass diode lose aforesaid function.
can be seen in disclosed Chinese patent document around the technical information of the heat radiation of the terminal box of solar-energy photo-voltaic cell in a large number; Slightly with give an example like CN101442280A (solar photovoltaic assembly terminal box), CN2716748Y (structure-improved of solar components link box), CN101138098A (terminal box of the output line of solar energy module and the installation method of this terminal box), CN200941388Y (solar power generation assembly junction box) and CN201075856Y (solar energy photovoltaic metallic wiring box), or the like.Typically (patent No.: ZL200720107421.X, title: quick connector), this patented method is to embody through the heat radiating metal spare that the surface has a wiring perforate to the heat radiation of bypass diode like CN201038672Y.
Logical fraud below the terminal box of the solar-energy photo-voltaic cell that give an example above being not limited to
exists: the one, because the heat radiation scope of bypass diode or title area of dissipation are little, and radiating rate is slow, therefore is unfavorable for guaranteeing its useful life; The 2nd and since on box body supporting have be respectively applied for and anodal leading-out terminal and the matched a pair of outgoing cable line of negative pole leading-out terminal; Therefore not only in the mounting, commissioning and maintenance process, be prone to cause poor electric contact and influence the effect that is connected between solar cell lead and the external lead wire, and make the difficulty increase of manufacturings, installation and maintenance; The 3rd, because being in, bypass diode reveals naked state in the terminal box box body; Therefore except aforesaid area of dissipation little with radiating rate slowly; In with the parts of busbar and so on and conducting strip pin fixation process, there is anxiety, for example makes the pin of bypass diode loosening etc. the interference of bypass diode.
In view of above-mentioned prior art, be necessary to improve, for this reason, the applicant has done positive and useful design, has found the way that solves above-mentioned logical fraud, and the technical scheme with by the agency of produces under this background below
Summary of the invention
task of the present invention is to provide a kind of and helps to enlarge markedly the heat radiation scope of bypass diode and use and be able to prolong the useful life of improving radiating rate and making bypass diode; Help abandoning the outgoing cable line and use and ensure and to make being connected effect and reducing between solar cell lead and the external connection; The installation and maintenance difficulty; Be of value to bypass diode implement reliably protecting and use avoid with in busbar and the process that the conducting strip pin is fixedly connected to the terminal box of the sex solar-energy photo-voltaic cell of bypass diode generation interference.
task of the present invention is accomplished like this; A kind of terminal box of solar-energy photo-voltaic cell; A side that is included in long side direction have a hollow out chamber and an end of the opposite side of length direction have a positive pole socket and the other end have an anode socket the terminal box box body, be used for the accent in hollow out chamber is covered the lid that protects, one group of conducting strip and one group of bypass diode that is electrically connected with conductive plate; Be characterised in that: described terminal box box body also has a built-in housing; This built-in housings close is in the terminal box box body; Described one group of conducting strip and one group of bypass diode are positioned at described built-in housing; Wherein: one group of bypass diode is electrically connected with one group of conducting strip with the mode that is connected in parallel, and the conducting strip pin of one group of conducting strip passes built-in housing and the terminal box box body is stretched in the described hollow out chamber to reveal naked state, and respectively is fixed with a conduction lock pin on one piece of conducting strip of first in one group of conducting strip and end; One of them conduction lock pin probes in the described positive pole socket, and another conduction lock pin then is insinuated in the described anode socket.
are in a concrete embodiment of the present invention; On the box wall of a side in said hollow out chamber, constitute the demarcation strip of one group of each interval at described terminal box box body, wherein: be distributed with a described conducting strip pin between per two adjacent demarcation strips.
are provided with the hole in the upper shed of described conducting strip pin in another concrete embodiment of the present invention, be equipped with a pressing plate in the position corresponding to the hole.
are in another concrete embodiment of the present invention; On the outer wall at the two ends in described hollow out chamber, respectively constitute a hook plate slot; In each hook plate slot, constitute a location card article, respectively be extended with a hook plate at the two ends of described lid, hook plate matches with the hook plate slot; And the end at each hook plate constitutes a location grab, and the location grab matches with described location card article.
in another concrete embodiment of the present invention, described cover and around the lid around constitute a sealing ring caulking groove, in sealing circle caulking groove, be embedded with a sealing ring.
also have among the concrete embodiment of the present invention, and the quantity of described one group of conducting strip is Duoed one piece than the quantity of described one group of bypass diode.
are more of the present invention and among concrete embodiment, when the quantity of described one group of conducting strip was four pieces, the quantity of then described one group of bypass diode was three.
In of the present invention and then concrete embodiment, described one group of conducting strip and one group of bypass diode are fixed in the described built-in housing with the injection moulding of injection moulding mode
.
of the present invention again more and among concrete embodiment, described built-in housing integrally is incorporated in the described terminal box box body with the injection moulding mode.
technical scheme provided by the invention is owing to be electrically connected with the mode of being connected in parallel bypass diode and be positioned at built-in housing with conducting strip; Thereby can the area of heat transfer of bypass diode be enlarged markedly and use the raising radiating rate, make be able to prolong the useful life of bypass diode; Because each extension is fixed with the conduction lock pin on two pieces of conducting strips of the head and the tail in one group of conducting strip; Thereby can supply external lead wire to connect easily; Need not to resemble and be equipped with special-purpose outgoing cable line the prior art; Guarantee with solar cell lead and external lead wire between be connected effect, and can reduce manufacturing cost significantly and reduce make, the installation and maintenance difficulty; Since with bypass diode be in the built-in housing and and then be positioned at the terminal box box body with built-in housing, thereby with the situation that can not occur influencing bypass diode in busbar and the process that the conducting strip pin is fixedly connected.
Description of drawings
Fig. 1 is embodiments of the invention and application examples structure chart.
Fig. 2 is the sketch map that is electrically connected of bypass diode and conducting strip.
Embodiment
can be expressly understood technical spirit of the present invention and beneficial effect more for the auditor that the makes Patent Office especially public; The applicant general elaborates with the mode of embodiment below; But the description to embodiment all is not the restriction to the present invention program, any according to the present invention design done only for pro forma but not substantial equivalent transformation all should be regarded as technical scheme category of the present invention.
see also Fig. 1 and Fig. 2; Provided a terminal box box body 1; Side at the length direction of this terminal box box body 1 constitutes a hollow out chamber 11; On the outer wall at the two ends in this hollow out chamber 11, respectively constitute a hook plate slot 111, in each hook plate slot 111, have the location card article 1111 of a level.End (left end shown in Figure 1) at the opposite side of the length direction of terminal box box body 1 constitutes a positive pole socket 12, and the other end (right-hand member shown in Figure 1) constitutes an anode socket 13.Terminal box box body 1 also includes a built-in housing 14; This built-in housing 14 is that the method with quadric injection mould is incorporated in the terminal box box body 1; Again; On the box wall in aforesaid hollow out chamber 11, be extended with the demarcation strip 15 of one group of each interval at terminal box box body 1, by shown in Figure 1, each demarcation strip 15 is positioned at hollow out chamber 11.
are protected for the accent position in hollow out chamber 11 is covered; Therefore a lid 2 is equipped with; Respectively be extended with a hook plate 21 at the two ends of this lid 2 and in position corresponding to aforesaid hook plate slot 111, respectively have in the terminal inboard of each hook plate 21 one the location grab 211, in hook plate 21 is inserted in hook plate slot 111 after; Location grab 211 just hook is put on the card article 1111 of location, cover 2 and covers the accent position fit over hollow out chamber 11 reliably thereby make.Again; In order to ensure the sealing between lid 2 and the hollow out chamber 11; Therefore around lid 2, constitute a sealing ring caulking groove 22 that ring is logical; In sealing circle caulking groove 22, be embedded a sealing ring 221, play excellent sealing function by sealing ring 221 matches with the recessed road 112 of the step at the accent position in hollow out chamber 11.
The quantity of
one group of conducting strip 3 is four pieces in the present embodiment; By shown in Figure 2; Four pieces of conducting strips 3 break off each other, and the quantity of the one group of bypass diode 4 that is electrically connected with conducting strip 3 is three in the present embodiment, and each bypass diode 4 forms with conducting strip 3 and is connected in parallel; That is to say that three bypass diodes 4 are connected on four pieces of conducting strips 3 with the mode of being connected in parallel, specifically can be through the pin and conducting strip 3 solid weldings of welding manner with bypass diode 4.One group of conducting strip 3 and one group of bypass diode 4 are wrapped in the aforesaid built-in housing 14 with the injection moulding mode, and more particularly, built-in housing 14 is essentially the plastic layer that is laminated with that is wrapped in outside conducting strip 3 and the bypass diode 4.Only the conducting strip pin 31 of conducting strip 3 is not contained by built-in housing 14 and is stretched over outside the terminal box box body 1, is insinuated in the aforesaid hollow out chamber 11.This version can guarantee that the overall optical photovoltaic assembly can be because of the damage of a Battery pack sheet wherein and quit work; And because conducting strip 3 is in the built-in housing 14; Thereby distortion can not appear and the heat radiation scope big because the heat transferred that is produced by bypass diode 4 can be transmitted and spread to the external world after conducting strip 3 fast.Undoubtedly, built-in housing 14 together with conducting strip 3 and bypass diode 4 in the quadric injection mould mode is combined in terminal box box body 1.
are by illustrated in figures 1 and 2; Be that each preferably is fixed with a conduction lock pin 32 with welding manner on one piece of conducting strip 3 on the left side and the right two pieces of the head and the tail of four pieces of conducting strips 3; One of them conduction lock pin 32 is stretched in the aforesaid positive pole socket 12, and another conduction lock pin 32 is stretched in the aforesaid anode socket 13.
are offered porose 311 on aforesaid conducting strip pin 31, the position corresponding to hole 311 promptly be positioned at conducting strip pin 31 above be equipped with a pressing plate 3111 through screw 31111.
emphasis is seen Fig. 1; Photovoltaic module 5 shown in this figure; Terminal box box body 1 of the present invention cements on this photovoltaic module 5; Specifically: after the busbar 51 of photovoltaic module 5 is fixed on the conducting strip pin 31 by aforesaid screw 31111, silica gel or similar adhesive and photovoltaic module 5 cementations are passed through in the bottom of terminal box box body 1; To cover 2 lids again and place the accent position in hollow out chamber 11, and with the anode plug 6a and positive pole socket 12 insertings of external lead wire, with the cathode plug 6b and anode socket 13 insertings of external lead wire.Preferred scheme is a perfusion casting glue in hollow out chamber 11, uses and plays waterproof and sealing effectiveness.
In sum; Technical scheme provided by the invention has solved the heat dissipation problem of bypass diode 4 effectively, and simultaneously the parallel-connection structure of one group of bypass diode 4 can guarantee reliably that whole photovoltaic module 5 can not bring disaster to all the other because a Battery pack sheet wherein damages and quits work, and can be used for powerful solar photovoltaic assembly; Again; The no cable of terminal box box body 1 self not only can reduce product cost, and can objective embodiment applicant in the technique effect hurdle alleged technique effect
Claims (9)
1. the terminal box of
a kind of solar-energy photo-voltaic cell; A side that is included in long side direction have a hollow out chamber (11) and an end of the opposite side of length direction have a positive pole socket (12) and the other end have an anode socket (13) terminal box box body (1), be used for the accent of hollow out chamber (11) is covered lid (2), one group of conducting strip (3) and the one group of bypass diode (4) that is electrically connected with conductive plate (3) that protects; It is characterized in that: described terminal box box body also has a built-in housing (14); This built-in housing (14) is enclosed in the terminal box box body (1); Described one group of conducting strip (3) and one group of bypass diode (4) are positioned at described built-in housing (14); Wherein: one group of bypass diode (4) is electrically connected with one group of conducting strip (3) with the mode that is connected in parallel; And the conducting strip pin (31) of one group of conducting strip (3) passes built-in housing (14) and terminal box box body (1) is stretched in the described hollow out chamber (11) to reveal naked state; And respectively be fixed with a conduction lock pin (32) on the one piece of conducting strip in first in one group of conducting strip (3) and end (3); One of them conduction lock pin (32) probes in the described positive pole socket (12), and another conduction lock pin (32) then is insinuated in the described anode socket (13).
2. the terminal box of
solar-energy photo-voltaic cell according to claim 1; It is characterized in that on the box wall of a side in said hollow out chamber (11), constituting the demarcation strip (15) of one group of each interval, wherein: be distributed with a described conducting strip pin (31) between per two adjacent demarcation strips (15) at described terminal box box body (1).
3. the terminal box of
solar-energy photo-voltaic cell according to claim 1 and 2 is characterized in that being provided with hole (311) in described conducting strip pin (31) upper shed, is equipped with a pressing plate (3111) in the position corresponding to hole (311).
4. the terminal box of
solar-energy photo-voltaic cell according to claim 1; It is characterized in that on the outer wall at the two ends in described hollow out chamber (11), respectively constituting a hook plate slot (111); In each hook plate slot (111), constitute a location card article (1111); Respectively be extended with a hook plate (21) at the two ends of described lid (2); Hook plate (21) matches with hook plate slot (111), and constitutes a location grab (211) at the end of each hook plate (21), and location grab (211) matches with described location card article (1111).
5.
are according to the terminal box of claim 1 or 4 described solar-energy photo-voltaic cells; It is characterized in that upward and around lid (2) constituting a sealing ring caulking groove (22), in sealing circle caulking groove (22), be embedded with a sealing ring (221) at described lid (2).
6. the terminal box of
solar-energy photo-voltaic cell according to claim 1 is characterized in that the quantity of described one group of conducting strip (3) is Duoed one piece than the quantity of described one group of bypass diode (4).
7. the terminal box of
solar-energy photo-voltaic cell according to claim 6 is characterized in that when the quantity of described one group of conducting strip (3) was four pieces, the quantity of then described one group of bypass diode (4) was three.
8. the terminal box of
solar-energy photo-voltaic cell according to claim 1 is characterized in that described one group of conducting strip (3) and one group of bypass diode (4) are fixed in the described built-in housing (14) with the injection moulding of injection moulding mode.
9.
The terminal box of solar-energy photo-voltaic cell according to claim 1 is characterized in that described built-in housing (14) integrally is incorporated in the described terminal box box body (1) with the injection moulding mode
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100133930A CN102569458A (en) | 2012-01-17 | 2012-01-17 | Junction box of solar photovoltaic cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100133930A CN102569458A (en) | 2012-01-17 | 2012-01-17 | Junction box of solar photovoltaic cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102569458A true CN102569458A (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100133930A Pending CN102569458A (en) | 2012-01-17 | 2012-01-17 | Junction box of solar photovoltaic cell |
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| CN (1) | CN102569458A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105208806A (en) * | 2015-08-19 | 2015-12-30 | 宁波飞羚电气有限公司 | Clamping hook type modular box |
| CN106160656A (en) * | 2016-08-31 | 2016-11-23 | 常熟市福莱德连接器科技有限公司 | A kind of intelligent connector |
| CN106208955A (en) * | 2016-08-31 | 2016-12-07 | 常熟市福莱德连接器科技有限公司 | A kind of rosette |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009129405A2 (en) * | 2008-04-16 | 2009-10-22 | Molex Incorporated | Solar panel junction box |
| CN101944546A (en) * | 2010-09-16 | 2011-01-12 | 常熟市冠日新材料有限公司 | Solar photovoltaic module junction box |
| CN102244127A (en) * | 2011-06-16 | 2011-11-16 | 常熟市冠日新材料有限公司 | Junction box for solar photovoltaic module |
-
2012
- 2012-01-17 CN CN2012100133930A patent/CN102569458A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009129405A2 (en) * | 2008-04-16 | 2009-10-22 | Molex Incorporated | Solar panel junction box |
| CN101944546A (en) * | 2010-09-16 | 2011-01-12 | 常熟市冠日新材料有限公司 | Solar photovoltaic module junction box |
| CN102244127A (en) * | 2011-06-16 | 2011-11-16 | 常熟市冠日新材料有限公司 | Junction box for solar photovoltaic module |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105208806A (en) * | 2015-08-19 | 2015-12-30 | 宁波飞羚电气有限公司 | Clamping hook type modular box |
| CN106160656A (en) * | 2016-08-31 | 2016-11-23 | 常熟市福莱德连接器科技有限公司 | A kind of intelligent connector |
| CN106208955A (en) * | 2016-08-31 | 2016-12-07 | 常熟市福莱德连接器科技有限公司 | A kind of rosette |
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Application publication date: 20120711 |