CN202772153U

CN202772153U - Solar energy photovoltaic assembly conjunction box

Info

Publication number: CN202772153U
Application number: CN2012204631803U
Authority: CN
Inventors: 邓福刚; 居荣生
Original assignee: CHANGSHU TOP SOLAR MATERIAL Co Ltd
Current assignee: CHANGSHU TOP SOLAR MATERIAL Co Ltd
Priority date: 2012-09-12
Filing date: 2012-09-12
Publication date: 2013-03-06
Anticipated expiration: 2022-09-12

Abstract

An solar energy photovoltaic assembly conjunction box belongs to the solar cell module technology field. The conjunction box comprises a box body with a soaring chamber, a protection mechanism arranged inside a protection mechanism chamber of the box body, and a box cover fitted with the box body, and the protection mechanism comprises a set of electric connecting sheets, a set of bypass diodes, an upper radiating fin and a low radiating fin. The box is characterized in that the protection mechanism also comprises a module support, the electric connecting sheets are combined on one side of the module support which is faced with the protection mechanism chamber and arranged at intervals along the length direction of the side, the bypass diodes are connected two adjacent electric connecting sheets inside a module support chamber of the module support, the upper radiating fin is covered on one side of the module support, which is faced with the box cover, the lower radiating fin is covered on one side of the module support, which is faced with the protection mechanism chamber, and the upper and lower radiating fins are jointly combined to shield the module support chamber. Application requirements of the large power bypass diodes can be satisfied; manufacturing is convenient, assembling is convenient, and industrial amplification production requirements can be satisfied.

Description

The solar photovoltaic assembly terminal box

Technical field

The utility model belongs to the solar module technical field, is specifically related to a kind of solar photovoltaic assembly terminal box

Background technology

The solar photovoltaic assembly terminal box is bonded together by the backboard of silica gel or similar adhesive and solar components, between solar module and solar charging device, be with the vitals of sun-generated electric power output, comprise terminal box body, be located at bypass diode, electric wire and cable connector in the box body.

The effect of aforesaid bypass diode is to prevent reverse charging and undermine solar-energy photo-voltaic cell and prevent from can't working because a solar-energy photo-voltaic cell short circuit causes whole solar photovoltaic battery component.Because in the solar energy power generating process, the electric current that flows through bypass diode can make its heating, therefore makes as far as possible terminal box possess desirable radiating effect, uses the heat that bypass diode is produced and distributes to the external world.

At present, because solar cell is progressively to high-power large sense of current development, thereby, be arranged on the also corresponding increase of power of the bypass diode in the box body, so require the corresponding raising of the heat dispersion of terminal box, because the thermal diffusivity that only has terminal box to have to stand out from one's fellows, could satisfy the requirement of the bypass diode that installation power increases.There are causality in the watt level of bypass diode and the heat dispersion of terminal box, and there is substantial connection in the quality of the radiating effect of the useful life of bypass diode and terminal box thereby as can be known.

Be no lack of in published Chinese patent literature around the technical scheme of solar photovoltaic assembly terminal box heat radiation and be seen in, slightly with exemplify as: " Wiring box for solar photovoltaic electrification component " that patent of invention publication number CN101442280A recommends remedied the structure-improved of the CN2716748Y(solar assembly junction box in the prior art), the terminal box of the output line of CN101138098A(solar energy module and the installation method of this terminal box), CN200941388Y(solar photovoltaic electrification component plug wire box) and CN201075856Y(solar energy photovoltaic metallic wiring box) existing logical fraud, specifically can be referring to the 2nd page of the 2nd row of the 1st page of inverse 8-of specification of CN101442280A, this patent application scheme is that bypass diode is installed on one piece of fin, consisting of in the both sides of the long side direction of box body has the box wing, exterior bottom interval at the middle part of the long side direction of box body has extended raised line, is made of the air duct that communicates with the external world the space between the raised line.Has desirable result of ventilating heat dissipation when undoubtedly this patent application scheme is on being installed on solar photovoltaic cell panel; " solar photovoltaic metallic wiring box " that CN101286626A discloses is between the shell of aluminium alloy and the nonmetal inner casing of ring-type heat-dissipating cavity to be set, and uses and improves waterproof and dampproof and radiating effect; " the solar-energy photo-voltaic cell system terminal box " that CN101459392A discloses is by arranging heat abstractor on the lid, heat abstractor is comprised of some fin that tilt with respect to the lid upper surface, and the ventilating air permeability of butted line box has positive effect.

The common shortcoming that above-mentioned patent application CN101442280A, CN101286626A and CN101459392A exist is remedied by " solar photovoltaic assembly terminal box " (this patent is proposed by the applicant) that invention patent mandate notification number CN101944546B introduces, specifically can be referring to the specification 0005-0006 section of this patent, it is to be arranged with the fin insertion slot that quantity equates with the quantity of conductive connection plates in the box chamber of box body and at the position corresponding to conductive connection plates, at each fin insertion slot interpolation embedding fin, and conductive connection plates is contacted with fin.The heat that bypass diode when work produces passes to fin through conductive connection plates (bypass diode is connected in series between two pieces of adjacent conductive connection plates) in the mode of heat transmission, pass to box body by fin with thermaltransmission mode again, distributed to the external world in the ventilating convection mode by the ventilation slot that is opened in the box body bottom at last.

Should say and state CN101944546B and objectively can embody the 0019th section described technique effect of its specification, but still there are following 2 shortcoming: one, be difficult to satisfy the heat radiation requirement to the bypass diode of the increase of output power, because electric connecting sheet only by with the Limited contact position of the fin of setting up with the heat transferred fin, and all the other zones of electric connecting sheet are remainder (remainder refers to the noncontact part with fin) because the heat that produces can not in time will be worked by bypass diode rapidly the time transmits to the external world, thereby can only be directly passed to box body self; They are two years old; because the protection mechanism that is made of electric connecting sheet, bypass diode and fin does not have the modularization effect or claims Modular Trends; make or assemble all comparatively trouble no matter therefore be; and affect industrial amplification production owing to installation effectiveness is low; for example for electric connecting sheet is reliably contacted with fin; must offer screw hole at the position that corresponds to each other of electric connecting sheet and fin, use screw (patent claims the electric connection board hold-down screw) that electric connecting sheet is fixedly connected with fin during assembling.

For above-mentioned prior art, the applicant has done further design, and taking to have carried out analogue test in the applicant plant area under the strict secrecy provision, it is practicable that the result proves, and technical scheme described below produces under this background

Summary of the invention

Task of the present utility model is to provide a kind of and helps significantly to promote the thermal diffusion effect of electric connecting sheet and use the job requirement of satisfying high-power bypass diode and be conducive to make protection mechanism to embody good modularization and use the convenient solar photovoltaic assembly terminal box made from assembling.

Task of the present utility model is finished like this; a kind of solar photovoltaic assembly terminal box; be included in the box body that the chamber of soaring is arranged towards the side formation of back panel of solar photovoltaic module under the use state; be arranged on the protection mechanism in the protection mechanism chamber of box body and be used for protection mechanism is covered the lid that protects and join with tray cover; described protection mechanism comprises the one group of electric connecting sheet that is intervally installed; be serially connected in one group of bypass diode between the two adjacent electric connecting sheets; corresponding to the top of one group of bypass diode one on fin and corresponding to the fin once of the below of one group of electric connecting sheet; be characterised in that: described protection mechanism also include one with described protection mechanism chamber suitable and be contained in module carrier in the protection mechanism chamber; described one group of electric connecting sheet is combined in module carrier and is spaced towards a side in described protection mechanism chamber and along the length direction of this side; described one group of bypass diode is connected with two adjacent electric connecting sheets in the module carrier chamber of module carrier; described upper radiation fin cover fits over module carrier towards a side of described lid; and described lower radiation fin cover fits over module carrier towards a side in described protection mechanism chamber, by upper; the common cooperation of lower fin and described module carrier chamber covered is protected.

In a specific embodiment of the present utility model, the described position of the position of chamber on described box body corresponding to described protection mechanism chamber of soaring.

In another specific embodiment of the present utility model, on the box wall at the two ends of described box body, respectively offer ventilation slot, ventilation slot communicates with described protection mechanism chamber.

In another specific embodiment of the present utility model, each consists of at the two ends of a side of the length direction of described box body has a cable that communicates with described protection mechanism chamber to draw to connect cavity, and draws at each cable and to connect cavity and plug and be equipped with a positioning block.

In another specific embodiment of the present utility model, reference column on one group is arranged consisting of with the interval state on the wall body of described module carrier fin one side on described and around the wall body, reference column leans out the top in described module carrier chamber on each; Module carrier towards consist of with the interval state around the wall body on the wall body of lower fin one side and equally have one group of quantity with described on reference column is equal and the position is corresponding lower reference column, each time reference column leans out the bottom in module carrier chamber; The position, edge of fin and offer the upper reference column mating holes that quantity equates with the quantity of upper reference column in the position corresponding to reference column on described on described, upper reference column mating holes cooperates with upper reference column Tenon; Offer the lower reference column mating holes that quantity equates with the quantity of lower reference column at the position, edge of described lower fin and in the position corresponding to described lower reference column, lower reference column mating holes cooperates with lower reference column Tenon.

Also have in the specific embodiment of the present utility model, heating panel offers for the glue filling opening that pours into for casting glue in the described module carrier chamber on described.

More of the present utility model and in specific embodiment; respectively be extended with one or a plurality of module carrier reference column at the two ends in described protection mechanism chamber; and on the outer wall at the two ends of described module carrier, respectively be extended with quantity and module carrier chucking lug that position corresponding that equate with described module carrier reference column; offer location hole at each module carrier chucking lug, described module carrier reference column probes in the location hole.

In of the present utility model and then specific embodiment, draw on the chamber wall that faces each other that connects cavity each consists of a longitudinal fluting is arranged at described cable, and in the both sides of described locating piece and in each formation of position corresponding to longitudinal fluting one vertical ridge is arranged, vertically ridge cooperates with the longitudinal fluting plug.

Of the present utility model again more and in specific embodiment; there is a gear prominent in the side formation of described cable connection cavity towards described protection mechanism chamber; space between the accent of the prominent and cable connection cavity of this gear constitutes the clamp holder chamber; in the side formation of described locating piece towards the clamp holder chamber one clamp holder, this clamp holder and clamp holder chamber scarf are arranged.

In again of the present utility model and then specific embodiment, on the outer wall of a side of the length direction of described box body and be in the middle position and consist of one first snap close is arranged, and on the outer wall of the opposite side of length direction and be positioned at both sides each consists of one second snap close is arranged, consisting of in a side of the length direction of described lid and at the position corresponding to the first snap close has one first buckle, the first buckle matches with the first snap close, and at the two ends of the opposite side of the length direction of lid and in that each consists of one second buckle is arranged corresponding to the position of the second snap close, the second buckle matches with the second snap close.

The technical scheme that the utility model provides is owing to set up module carrier, one group of bypass diode is located in the module carrier chamber, and be electrically connected with the one group of electric connecting sheet that is positioned at its below, and adopted upper and lower fin, the heat that distributes when therefore bypass diode is worked can be distributed by the upper and lower fin corresponding to its upper and lower comprehensively, is satisfied the application requirements of powerful bypass diode; Because the setting of module carrier thereby can make protection mechanism be Modular Trends not only can conveniently be made, and can fast assemble, thereby can be satisfied the industrial amplification production requirement.

Description of drawings

Fig. 1 is example structure figure of the present utility model.

Embodiment

For the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present utility model and beneficial effect more, the applicant general elaborates in the mode of embodiment below, but all be not restriction to the utility model scheme to the description of embodiment, any according to the utility model design done only for pro forma but not substantial equivalent transformation all should be considered as the technical solution of the utility model category.

See also Fig. 1, provided a box body 1, the material of this box body 1 preferably uses nonmetallic materials, for example makes the type of being molded out of plastic.This box body 1 consists of the chamber 11 of soaring towards a side of solar components backboard under the use state; and namely under the use state, towards the side formation of lid 3 a protection mechanism chamber 12 is arranged back to a side in the chamber 11 of soaring; the two ends in this protection mechanism chamber 12 respectively are extended with a pair of module carrier reference column 121; certainly; if module carrier reference column 121 is reduced to one, should be considered as so equivalence and changes.Respectively offer ventilation slot 13 on the chamber wall that on the wall body at the two ends of box body 1 also is protection mechanism chamber 12, ventilation slot 13 communicates with protection mechanism chamber 12, by it heats in protection mechanism chamber 12 is spread to the external world.Namely each consists of and has a cable to draw to connect cavity 14 in the face of the two ends of the wall body of protection mechanism chamber 12 1 sides in a sidewall bodies of the length direction of box body 1; draw at each cable on the corresponding wall body at the accent position that connects cavity 14 and respectively offer a longitudinal fluting 142; and draw at cable and to connect cavity 14 and consist of towards the side in aforesaid protection mechanism chamber 12 and have gear prominent 143, the space that gear prominent 143 and cable draw between the accent that connects cavity 14 constitutes clamp holder chamber 1431.Each formation of the both sides of locating piece 141 has a vertical ridge 1411, and namely towards the side formation of aforesaid gear prominent 143 clamp holder 1412 is arranged in the side of locating piece 141 towards protection mechanism chamber 12.When locating piece 141 inserts longitudinal fluting 142 by vertical ridge 1411 thereon, clamp holder 1412 just thereupon with clamp holder chamber 1431 scarves, thereby can avoid the improper loosening of locating piece 141, in order to illustrated cable 4 is carried out effective control.

Shown in figure, aforesaid cable draws the bottom that connects cavity 14 and constitutes semicircle chamber, and the bottom of locating piece 141 same consist of half circular cavity is arranged so that current supply cable 4 inserts and is electrically connected with the following protection mechanism that also will describe in detail 2.In order to ensure cooperating namely to cover and join effect between lid 3 and the box body 1, on the outer wall of a side of the length direction of box body 1 and occupy the middle part and consist of one first snap close 15 is arranged, and on the outer wall of the opposite side of length direction and be positioned at two ends each consists of one second snap close 16 is arranged.For a side of the length direction that protection mechanism chamber 12 is covered the lid 3 that protects and in the position formation corresponding to the first snap close 15 one first buckle 31 is being arranged; each consists of one second buckle 32 is arranged and at the two ends of the length direction of opposite side; the first buckle 31 and 15 insertings of the first snap close, the second buckle 32 and 16 insertings of the second snap close.

According to common practise, only protection mechanism 2 be installed on protection mechanism chamber 12 interior after and after cable 4 and protection mechanism 2 are electrically connected work and finish and locating piece 141 plant put in place after, just lid 3 is covered with box body 1 and joins.

The protection mechanism 2 that the utility model provides comprises electric connecting sheet 21, bypass diode 22, upper fin 23, lower fin 24 and module carrier 25; module carrier 25 is rectangular frame-like structure; consist of the module carrier chamber 251 that hollow out about in the of is arranged; this module carrier 25 towards on fin 23 a side and consist of with the interval state around the module carrier 25 reference column 252 on a group arranged; reference column 252 leans out module carrier chamber 251 on each, namely leans out the upper edge (upper edge refers to the edge towards a side of upper heating panel plate 23) of module carrier 25.At module carrier 25 towards a side of lower fin 24 and consist of with the interval state around the module carrier 25 equally one group of position and upper reference column 252 lower reference columns 253 corresponding and that quantity is equal are arranged, each time reference column 253 leans out module carrier chamber 251, namely leans out module carrier 25 towards the edge of a side of lower fin 24.In the manufacture process of reality, upper and lower reference column 252,253 is formed on the module carrier 25 simultaneously.On the outer wall at the two ends of module carrier 25 and in that each consists of a pair of module carrier chucking lug 254 is arranged corresponding to the position of aforesaid module carrier reference column 121, offer a location hole 2541 on each module carrier chucking lug 254, location hole 2541 matches with module carrier reference column 121, that is to say that module carrier reference column 121 inserts in the location hole 2541.The quantity of one group of electric connecting sheet 21 is four pieces in the present embodiment, arranges along the bottom of the length direction of module carrier 25 with the interval state, when module carrier 25 is shaped, this group of electric connecting sheet 21 is injection-moulded in module carrier 25.The quantity of one group of bypass diode 22 is three in the present embodiment, is connected in series by a bypass diode 22 between per two pieces of adjacent electric connecting sheets 21.Offer the upper reference column mating holes 231 that quantity equates with the quantity of upper reference column 252 in the edge of the upper fin 23 that illustrates and in the position corresponding to reference column on aforesaid 252, upper reference column mating holes 231 matches with upper reference column 252 just as the Tenon effect, protects thereby the one group of bypass diode 22 that is electrically connected with electric connecting sheet 21 that is positioned at module carrier chamber 251 covered.Offer the lower reference column mating holes 241 that quantity equates with the quantity of lower reference column 253 in the edge of the lower fin 24 that illustrates and in the position corresponding to aforesaid lower reference column 253, lower reference column mating holes 241 matches with lower reference column 253 just as the effect as the Tenon equally, protects thereby the below of one group of electric connecting sheet 21 covered.

First electric connecting sheet 21 in one group of electric connecting sheet 21 is one piece of electric connecting sheet 21 and aforesaid cable 4 electric being fixedly connected with of the left end of shown position state, and one piece at end be low order end one piece of electric connecting sheet 21 equally with cable 4 electric being fixedly connected with.

Above-mentioned bypass diode 22 and electric connecting sheet 21 are finished electrical connection and upper and lower fin 23,24 is carried out encapsulating respectively with after upper and lower reference column 252,253 cooperates.

For with in the casting glue injection module support chamber 251, therefore fin 23 offers a glue filling opening 232 on aforesaid, by means of this glue filling opening 232 casting glue is poured in the module carrier chamber 251.The applicant need to prove: if do not offer glue filling opening 232 on upper fin 23, and offer fill orifice 242 at lower fin 24, should be considered as so equivalence and change and still belong to technology category of the present utility model.

Behind the encapsulating of having finished module carrier chamber 251, by the superincumbent description of applicant whole protection mechanism 2 is inserted in the protection mechanism chamber 12 and with lid 3 lids and to be fitted on the box body 1.

In a word, the technical scheme that the utility model provides has been eliminated the shortcoming in the prior art effectively, has embodied all sidedly the technique effect of applicant in the technique effect hurdle

Claims

1. A kind of solar photovoltaic assembly terminal box; be included in the box body (1) that the chamber of soaring (11) is arranged towards the side formation of back panel of solar photovoltaic module under the use state; be arranged on the protection mechanism (2) in the protection mechanism chamber (12) of box body (1) and be used for protection mechanism (2) is covered the lid (3) that protects and join with box body (1) lid; described protection mechanism (2) comprises the one group of electric connecting sheet (21) that is intervally installed; be serially connected in the one group of bypass diode (22) between the two adjacent electric connecting sheets (21); corresponding to the top of one group of bypass diode (22) one on fin (23) and corresponding to the fin once (24) of the below of one group of electric connecting sheet (21); it is characterized in that: described protection mechanism (2) also include one with described protection mechanism chamber (12) suitable and be contained in module carrier (25) in the protection mechanism chamber (12); described one group of electric connecting sheet (21) is combined in module carrier (25) and is spaced towards a side in described protection mechanism chamber (12) and along the length direction of this side; described one group of bypass diode (22) is connected with two adjacent electric connecting sheets (21) in the module carrier chamber (251) of module carrier (25); described upper fin (23) lid fits over module carrier (25) towards a side of described lid (3); and described lower fin (24) lid fits over module carrier (25) towards a side in described protection mechanism chamber (12), by upper; lower fin (23; 24) common cooperation and described module carrier chamber (251) covered is protected.

2. Solar photovoltaic assembly terminal box according to claim 1 is characterized in that the position of the described chamber of soaring (11) on described box body (1) is corresponding to the position in described protection mechanism chamber (12).

3. Solar photovoltaic assembly terminal box according to claim 1 and 2 is characterized in that respectively offering ventilation slot (13) on the box wall at the two ends of described box body (1), and ventilation slot (13) communicates with described protection mechanism chamber (12).

4. Solar photovoltaic assembly terminal box according to claim 3; it is characterized in that at the two ends of a side of the length direction of described box body (1) each consists of and has a cable that communicates with described protection mechanism chamber (12) to draw to connect cavity (14), and draw at each cable and to connect cavity (14) and plug and be equipped with a positioning block (141).

5. Solar photovoltaic assembly terminal box according to claim 1, it is characterized in that with interval state formation reference column on a group (252) being arranged at described module carrier (25) on the wall body of described upper fin (23) one sides and around wall body, reference column on each (252) leans out the top in described module carrier chamber (25); Consisting of with the interval state around the wall body on the wall body of lower fin (24) one sides and equally at module carrier (25) has the lower reference column (253) that one group of quantity is equal with described upper reference column (252) and the position is corresponding, and each time reference column (253) leans out the bottom of module carrier chamber (25); The position, edge of fin (23) and offer the upper reference column mating holes (231) that quantity equates with the quantity of upper reference column (252) in the position corresponding to reference column on described (252) on described, upper reference column mating holes (231) cooperates with upper reference column (252) Tenon; Offer the lower reference column mating holes (241) that quantity equates with the quantity of lower reference column (253) at the position, edge of described lower fin (24) and in the position corresponding to described lower reference column (253), lower reference column mating holes (241) cooperates with lower reference column (253) Tenon.

6. Solar photovoltaic assembly terminal box according to claim 1 is characterized in that heating panel on described (23) offers for the glue filling opening (232) that pours into for casting glue in the described module carrier chamber (251).

7. Solar photovoltaic assembly terminal box according to claim 1; it is characterized in that respectively being extended with at the two ends in described protection mechanism chamber (12) one or a plurality of module carrier reference column (121); and on the outer wall at the two ends of described module carrier (25), respectively be extended with quantity and module carrier chucking lug (254) that position corresponding that equate with described module carrier reference column (121); offer location hole (2541) at each module carrier chucking lug (254), described module carrier reference column (121) probes in the location hole (121).

8. Solar photovoltaic assembly terminal box according to claim 4, it is characterized in that drawing on the chamber wall that faces each other that connects cavity (14) each at described cable consists of a longitudinal fluting (142) is arranged, and in the both sides of described locating piece (141) and in each formation of position corresponding to longitudinal fluting (142) one vertical ridge (1411) is arranged, vertically ridge (1411) cooperates with longitudinal fluting (142) plug.

9. Solar photovoltaic assembly terminal box according to claim 4; it is characterized in that in the side formation of described cable connection cavity (14) towards described protection mechanism chamber (12) one gear prominent (143) being arranged; space between the accent of this gear prominent (143) and cable connection cavity (14) constitutes clamp holder chamber (1431); one clamp holder (1412) is arranged, this clamp holder (1412) and clamp holder chamber (1431) scarf in the side formation of described locating piece (141) towards clamp holder chamber (1431).

10. Solar photovoltaic assembly terminal box according to claim 1, it is characterized in that on the outer wall of a side of the length direction of described box body (1) and be in the middle position consisting of one first snap close (15) being arranged, and on the outer wall of the opposite side of length direction and be positioned at both sides each consists of one second snap close (16) is arranged, consisting of in a side of the length direction of described lid (3) and at the position corresponding to the first snap close (15) has one first buckle (31), the first buckle (31) matches with the first snap close (15), and at the two ends of the opposite side of the length direction of lid (3) and in that each consists of one second buckle (32) is arranged corresponding to the position of the second snap close (16), the second buckle (32) matches with the second snap close (16)