CN101976970A

CN101976970A - Photovoltaic assembly junction box

Info

Publication number: CN101976970A
Application number: CN2010102417177A
Authority: CN
Inventors: 陈新初
Original assignee: 陈新初
Current assignee: Suzhou Goodark New Energy Technology Co., Ltd.
Priority date: 2010-07-30
Filing date: 2010-07-30
Publication date: 2011-02-16
Anticipated expiration: 2030-07-30
Also published as: CN101976970B; WO2012013013A1

Abstract

The invention discloses a photovoltaic assembly junction box which comprises a junction box body, an operating circuit module, a heat dissipating module and a connecting module, wherein the junction box body is provided with an accommodating cavity, and the accommodating cavity is isolated from the outside in a gas-liquid sealing mode; the operating circuit module comprises an operating circuit and a plurality of pins electrically connected with the operating circuit, the operating circuit is arranged outside the accommodating cavity, and the pins are arranged inside the accommodating cavity; the heat dissipating module is arranged outside the operating circuit; the connecting module comprises a positive connecting device and a negative connecting device, and the positive connecting device and the negative connecting device are respectively and electrically connected with the corresponding pin inside the accommodating cavity. The heat dissipation capability of the photovoltaic assembly junction box is greatly enhanced; thus, the invention not only solves the sealing problem in the prior art, but also solves the technical problem that power can not be increased.

Description

The photovoltaic module terminal box

Technical field

The present invention relates to a kind of photovoltaic module terminal box.

Background technology

Photovoltaic cell is the device that the solar radiation energy is directly changed into electric energy, and photovoltaic module by the product that a plurality of photovoltaic cells connect and encapsulation forms, is the elementary cell of battery array in the photovoltaic generating system just.The photovoltaic module terminal box is the crucial jockey that solar components is made system, and the effect of terminal box is to prevent to produce when the solar components part is blocked the hot spot effect.Cause the terminal box can't operate as normal if terminal box is damaged or connect not firm meeting, thereby when the solar components part is blocked, whole solar components system is with regard to cisco unity malfunction, and the part that is blocked will be sent a large amount of heats, and serious meeting burns out assembly.At present, the operating circuit of photovoltaic module terminal box all is placed in the terminal box of sealing, when the photovoltaic module terminal box is in running order, bypass diode can produce higher temperature (up to 200 degree), thereby the interior air of box body of sealing is sharply expanded, thereby cause sealing property to lose efficacy, plastic casing causes distortion to be burnt owing to be unable to bear HTHP.On the other hand, along with development of science and technology, the conversion efficiency of photovoltaic cell improves day by day, the power of photovoltaic cell is increasing, powerful photovoltaic module terminal box demand is urgent day by day, above-mentioned terminal box causes technical bottleneck because above reasons in structure makes the power of existing photovoltaic module terminal box to increase.

Summary of the invention

For overcoming above-mentioned shortcoming, the object of the present invention is to provide a kind of photovoltaic module terminal box of good heat dispersion performance.

In order to reach above purpose, the technical solution used in the present invention is: a kind of photovoltaic module terminal box, it comprises the terminal box body, the operating circuit module, radiating module and link block, described terminal box body has containing cavity, this containing cavity and the sealing of extraneous gas-liquid, described operating circuit module comprises operating circuit and a plurality of pins that are electrically connected with described operating circuit, described operating circuit is arranged on the outside of described containing cavity, described pin is arranged at described containing cavity inside, described radiating module is arranged at the outside of described operating circuit, described link block comprises anodal jockey and negative pole jockey, and described anodal jockey is electrically connected at the inner and corresponding pin of described containing cavity respectively with the negative pole jockey.

Preferably, described terminal box body is included in the sidewall that the sealing of Z axle is extended and centered on to Z-direction, the bottom of this sidewall extends to form flange in the XY plane, described flange pastes surface to photovoltaic module by fluid sealant, the top of this sidewall is coated with lid, is provided with seal between described sidewall top and described lid.

Preferably, described operating circuit module comprises substrate, is fixedly installed on the operating circuit on the described substrate, the pin that is electrically connected with described operating circuit, the outer cover of described substrate and described operating circuit is provided with radiating module, and the pin bores that described pin passes on the described terminal box body stretches in the described containing cavity.

More preferably, be provided with seal between described pin and the described pin bores.

More preferably, be provided with guiding mechanism between described substrate and the described radiating module, be provided with guiding mechanism between described terminal box body and the described radiating module along Y direction along X-direction.

More preferably, described terminal box body is made by plastic material, and described radiating module is made by metal material.

More preferably, described radiating module is formed with radiating fin on the part surface at least.

Preferably, described terminal box body has the cable passage that a pair of and described containing cavity is conducted, the anodal bindiny mechanism that described anodal jockey comprises cable and is positioned at an end of described cable, the negative pole bindiny mechanism that described negative pole jockey comprises cable and is positioned at described cable one end, the other end of the cable of described anodal jockey, negative pole jockey passes respectively that corresponding cable passage stretches in the described containing cavity and is electrically connected with corresponding pin.

Preferably, be provided with sealing mechanism in the described cable passage.

Preferably, be formed with the fill block passage on the described cable passage, be provided with the sealing fill block in this fill block passage, described sealing fill block inside has seal channel, be provided with sealing ring in the described seal channel, after the other end of the cable of described anodal jockey, negative pole jockey passes corresponding cable passage, seal channel respectively, stretch in the described containing cavity and be electrically connected with corresponding pin.

Owing to adopted technique scheme, be not difficult to find out that photovoltaic module terminal box of the present invention is than conventional electrical connectors, because operating circuit is set directly at the outside, and its outer setting has the radiating module of the heat radiation quickened, greatly strengthened the heat-sinking capability of photovoltaic module terminal box, thereby not only solved sealing problem of the prior art, and solved the technical problem that power can't increase.

Description of drawings

Accompanying drawing 1 is the schematic perspective view of photovoltaic module terminal box embodiment of the present invention;

Accompanying drawing 2 splits schematic diagram (front) for the solid of photovoltaic module terminal box embodiment of the present invention;

Accompanying drawing 3 splits schematic diagram (reverse side) for the solid of photovoltaic module terminal box embodiment of the present invention.

Wherein: 101, terminal box body; 102, containing cavity; 103a, cable passage; 103b, cable passage; 104a, fill block passage; 104b, fill block passage; 105a, fastening passage; 105b, fastening passage; 106, sealing fill block; 106a, seal channel; 107, sealing ring; 108, briquetting; 109, brace; 110, pin bores; 111, lid; 112, seal; 113, projection; 201, operating circuit module; 202, substrate; 203, operating circuit; 204, pin; 205, convex epirelief; 301, radiating module; 302, radiating fin; 303, groove; 401, anodal jockey; 402, negative pole jockey; 403, cable; 404, cable; 405, anodal bindiny mechanism; 406, negative pole bindiny mechanism.

Embodiment

Below in conjunction with accompanying drawing preferred embodiment of the present invention is described in detail, thereby protection scope of the present invention is made more explicit defining so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that.

Referring to accompanying drawing 1 to accompanying drawing 3, photovoltaic module terminal box in the present embodiment comprises terminal box body 101, operating circuit module 201, radiating module 301 and link block 401,402, terminal box body 101 can be by the plastic material one-shot forming, and radiating module 301 can be made by metal material.

Shown in accompanying drawing 2 and accompanying drawing 3, terminal box body 101 is included in the sidewall that the sealing of Z axle is extended and centered on to Z-direction, the bottom of this sidewall extends to form flange in the XY plane, flange pastes surface to photovoltaic module by fluid sealant, the top of this sidewall is coated with lid 111,111 of sidewall top and lids are provided with seal 112, thereby form a containing cavity 102 that seals with extraneous gas-liquid mutually, in other embodiments of the invention, thereby flange also can cover whole bottom surface and form the space that an opening makes progress, and the terminal box body 101 that forms after this space is covered by lid 111 can be not limited only to paste the using method to the surface of photovoltaic module.

Terminal box body 101 has a pair of cable passage 103a that is conducted with containing cavity 102,103b.In preferred version of the present invention, the both ends of terminal box body 101 extend to form a pair of cable passage 103a downwards along Y direction respectively, 103b, thereby the partial sidewall of terminal box body 101, cable passage 103a, the sidewall of 103b surround jointly and form opening towards the reciprocal host cavity of Y-axis; Cable passage 103a, upper edge, 103b path Z-direction is formed with fill block path 10 4a, 104b, this fill block path 10 4a, 104b is with

cable passage

103a, 103b cuts off, sealing fill block 106 inside have seal channel 106a, embed fill block path 10 4a when sealing fill block 106 along Z-direction, can be during 104b with

cable passage

103a, 103b is communicated with, and be provided with sealing ring 107 in the seal channel 106a, thereby guarantee the sealing property of containing cavity 102, this setup is a kind of preferred mode in fact as can be seen, because if only adopt at cable path 10 3a, the mode of sealing mechanism is installed among the 103b, it is difficult to extremely to operate in the process of production and processing, and the present invention be packed into fill block path 10 4a after only need in sealing fill block 106 sealing ring 107 being installed, and 104b gets final product, like this, when cable being passed successively corresponding cable passage 103a, behind 103b and the seal channel 106a, sealing fill block 106 is also by fastening automatically.

Cable passage 103a, also be formed with fastening path 10 5a on the 103b path along Z-direction, 105b, this fastening path 10 5a, 105b respectively with corresponding cable passage 103a, the 103b part runs through mutually, and fastening path 10 5a is equipped with briquetting 108 in the 105b, the cross section of briquetting 108 and fastening path 10 5a, the cross section of 105b adapts, and as a kind of preferred scheme, can adopt polygonal cross section (pentagon for example, hexagon etc.), when cable is positioned at cable passage 103a, in the time of among the 103b, certain one side that this cross section is polygonal briquetting 108 will be in the crust extruding of the cable that passes through the position mutually, thereby play the effect of fixed cable; As a kind of scheme that is more preferably, on briquetting 108 and outer wall that cable sheath compresses mutually, form groove that at least one extends along the Z axle, therefore, when briquetting 108 pushes the crust of cables, thereby the part crust of cable is absorbed in the effect that has strengthened stop in this groove.

Operating circuit module 201 comprises substrate 202, is fixedly installed on the operating circuit 203 on the substrate 202, the pin 204 that is electrically connected with operating circuit 203, and substrate 202 is tabular; Thereby the cross section of radiating module 301 takes the shape of the letter U and has the inner chamber that is used to accommodate substrate 202, and its upper surface is formed with radiating fin 302 to strengthen radiating effect on the part surface at least; Radiating module 301 slightly is longer than substrate 202 in the length of X-direction, be provided with guiding mechanism between substrate 202 and the radiating module 301 along X-direction, the upper surface of substrate 202 is formed with the convex epirelief 205 that extends along X-direction, radiating module 301 has groove 303 with these convex epirelief 205 corresponding position shapes, and this guiding mechanism slips into substrate 202 inner chamber of radiating module 301 along the X-direction guiding; Be provided with guiding mechanism between terminal box body 101 and the radiating module 301 along Y direction, this guiding mechanism is with substrate 202, radiating module 301 slips into the above-mentioned partial sidewall by terminal box body 101 along the Y direction guiding jointly, cable passage 103a, the sidewall of 103b surrounds the opening of formation jointly in the reciprocal host cavity of Y-axis, in the present embodiment, this guiding mechanism is specially the projection 113 that is positioned at radiating module 301 both sides, this projection 113 is contained in the space of substrate 202 both sides in radiating module 301 inner chambers in radiating module 301 slips into process in the host cavity along Y direction, the pin bores 110 that pin 204 then passes on the terminal box body 101 stretches in the containing cavity 102, is provided with seal 207 between pin 204 and the pin bores 110.Those skilled in the art will appreciate that, the operating circuit 203 that is arranged on the substrate 202 is the inner chamber that is contained in radiating module 301 in this process, pin 204 then is the containing cavity 102 that is positioned at sealing, so the huge operating circuit 203 aerial radiating effects of caloric value are obvious.

Link block comprises anodal jockey 401 and negative pole jockey 402, the anodal bindiny mechanism 405 that anodal jockey 401 comprises cable 403 and is positioned at an end of cable 403, the negative pole bindiny mechanism 406 that negative pole jockey 402 comprises cable 404 and is positioned at cable 404 1 ends, anodal bindiny mechanism 405, negative pole bindiny mechanism 406 are used for interconnecting with the corresponding bindiny mechanism of photovoltaic module or other photovoltaic module terminal box respectively; Anodal jockey 401, the cable 403 of negative pole jockey 402,404 the other end passes corresponding cable passage 103a respectively, behind 103b and the seal channel 106a, stretch in the containing cavity 102 and be electrically connected with corresponding pin 204, in the present embodiment, the process of this connection realizes by brace 109, one end of this brace 109 and cable 403,404 heart yearn welding is fixing, and the slotting groove that is arranged on the pin 204 that is connected to of other end card, thereby provide a kind of assembling mode easily, on the other hand, after brace 109 installs and fixes, operating circuit module 201, the position of radiating module 301 also is fixed, thereby has stoped operating circuit module 201, radiating module 301 moving on Y direction.

Above execution mode only is explanation technical conceive of the present invention and characteristics; its purpose is to allow the people that is familiar with this technology understand content of the present invention and is implemented; can not limit protection scope of the present invention with this; all equivalences that spirit is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.

Claims

1. photovoltaic module terminal box is characterized in that it comprises:

Terminal box body (101), described terminal box body (101) has containing cavity (102), this containing cavity (102) and extraneous gas-liquid sealing;

Operating circuit module (201), described operating circuit module (201) comprises operating circuit (203) and a plurality of pins (204) that are electrically connected with described operating circuit (203), described operating circuit (203) is arranged on the outside of described containing cavity (102), and described pin (204) is arranged at described containing cavity (102) inside;

Radiating module (301), described radiating module (301) is arranged at the outside of described operating circuit (203);

Link block (401,402), described link block (101) comprises anodal jockey (401) and negative pole jockey (402), and described anodal jockey (401) is electrically connected at the inner and corresponding pin (204) of described containing cavity (102) respectively with negative pole jockey (402).

2. photovoltaic module terminal box according to claim 1, it is characterized in that: described terminal box body (101) is included in the sidewall that the sealing of Z axle is extended and centered on to Z-direction, the bottom of this sidewall extends to form flange in the XY plane, described flange pastes surface to photovoltaic module by fluid sealant, the top of this sidewall is coated with lid (111), is provided with seal (112) between described sidewall top and described lid (111).

3. photovoltaic module terminal box according to claim 1, it is characterized in that: described operating circuit module (201) comprises substrate (202), is fixedly installed on the operating circuit (203) on the described substrate (202), the pin (204) that is electrically connected with described operating circuit (203), described substrate (202) is provided with radiating module (301) with the outer cover of described operating circuit (203), and the pin bores (110) that described pin (204) passes on the described terminal box body (101) stretches in the described containing cavity (102).

4. photovoltaic module terminal box according to claim 3 is characterized in that: be provided with seal (207) between described pin (204) and the described pin bores (110).

5. photovoltaic module terminal box according to claim 3, it is characterized in that: be provided with guiding mechanism (205 between described substrate (202) and the described radiating module (301) along X-direction, 303), be provided with guiding mechanism (113) between described terminal box body (101) and the described radiating module (301) along Y direction.

6. photovoltaic module terminal box according to claim 3 is characterized in that: described terminal box body (101) is made by plastic material, and described radiating module (301) is made by metal material.

7. photovoltaic module terminal box according to claim 6 is characterized in that: described radiating module (301) is formed with radiating fin (302) on the part surface at least.

8. photovoltaic module terminal box according to claim 1, it is characterized in that: described terminal box body (101) has the cable passage (103a that a pair of and described containing cavity (102) is conducted, 103b), the anodal bindiny mechanism (405) that described anodal jockey (401) comprises cable (403) and is positioned at an end of described cable (403), the negative pole bindiny mechanism (406) that described negative pole jockey (402) comprises cable (404) and is positioned at described cable (404) one ends, described anodal jockey (401), the cable (403 of negative pole jockey (402), 404) the other end passes corresponding cable passage respectively, and (103a 103b) stretches in the described containing cavity (102) and is electrically connected with corresponding pin (204).

9. photovoltaic module terminal box according to claim 8 is characterized in that: (103a is provided with sealing mechanism in 103b) in described cable passage.

10. photovoltaic module terminal box according to claim 9, it is characterized in that: described cable passage (103a, be formed with fill block passage (104a 103b), 104b), this fill block passage (104a, be provided with sealing fill block (106) 104b), described sealing fill block (106) inside has seal channel (106a), be provided with sealing ring (107) in the described seal channel (106a), described anodal jockey (401), the cable (403 of negative pole jockey (402), 404) the other end passes corresponding cable passage (103a respectively, 103b), behind the seal channel (106a), stretch in the described containing cavity (102) and be electrically connected with corresponding pin (204).