CN201796909U

CN201796909U - Photovoltaic component junction box

Info

Publication number: CN201796909U
Application number: CN2010202776283U
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: 2011-04-13
Anticipated expiration: 2020-07-30
Also published as: WO2012013014A1

Abstract

The utility model discloses a photovoltaic component junction box. The photovoltaic component junction box comprises a junction box body, an operating circuit module, a radiating module and a linking module, wherein the operating circuit module comprises an operating circuit and pins electrically connected with the operating circuit; the linking module comprises an anode linking device and a cathode linking device; the junction box body is provided with a holding cavity sealed from external gas-liquid; two end parts of the junction box body extend downwards in Y-axis directions respectively, so as to form a pair of cable passages communicated with the holding cavity; the junction box body and the cable passages together form an accommodating cavity; the radiating module is arranged outside the operating circuit; the radiating module and the operating circuit are accommodated in the accommodating cavity; the pins are arranged in the holding cavity; and the anode linking device and the cathode linking device penetrate corresponding cable passages respectively, so as to be electrically connected with corresponding pins in the holding cavity. Compared with the conventional junction box, the photovoltaic component junction box adopting the technical scheme obviously has the advantages of reasonable layout, compact structure and the like.

Description

A kind of photovoltaic module terminal box

Technical field

The utility model 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.

The utility model content

For overcoming above-mentioned shortcoming, the utility model purpose is to provide a kind of photovoltaic module terminal box rational in infrastructure.

In order to reach above purpose, the technical solution adopted in the utility model is: a kind of photovoltaic module terminal box, comprise the terminal box body, the operating circuit module, radiating module, link block, described operating circuit module comprises operating circuit and the pin that is electrically connected with described operating circuit, described link block comprises anodal jockey and negative pole jockey, described terminal box body has the containing cavity with extraneous gas-liquid sealing, the both ends of described terminal box body extend to form the cable passage that a pair of and described containing cavity is conducted downwards along Y direction respectively, described terminal box body, described cable passage surrounds jointly and forms a host cavity, described radiating module is positioned at the outside of described operating circuit, described radiating module and described operating circuit are contained in the described host cavity, described pin is positioned at described containing cavity inside, and described anodal jockey passes corresponding cable passage respectively with the negative pole jockey and is electrically connected at the inner and corresponding pin of described containing cavity.

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

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

Owing to adopted technique scheme, be not difficult to find out the utility model photovoltaic module terminal box than conventional electrical connectors, have advantages such as rationally distributed, compact conformation.

Description of drawings

Accompanying drawing 1 is the schematic perspective view of a kind of photovoltaic module terminal box of the utility model embodiment;

Accompanying drawing 2 is that the solid of a kind of photovoltaic module terminal box of the utility model embodiment splits schematic diagram (front);

Accompanying drawing 3 is that the solid of a kind of photovoltaic module terminal box of the utility model embodiment splits schematic diagram (reverse side).

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 utility model is described in detail, thereby protection range of the present utility model is made more explicit defining so that advantage of the present utility model and feature 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 embodiment of the present utility model, 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 utility model, 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 utility model 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 utility model and characteristics; its purpose is to allow the people that is familiar with this technology understand content of the present utility model and is implemented; can not limit protection range of the present utility model with this; all equivalences of being done according to the utility model spirit change or modify, and all should be encompassed in the protection range of the present utility model.

Claims

1. photovoltaic module terminal box, comprise terminal box body (101), operating circuit module (201), radiating module (301), link block (401,402), described operating circuit module (201) comprises operating circuit (203) and the pin (204) that is electrically connected with described operating circuit (203), described link block (101) comprises anodal jockey (401) and negative pole jockey (402), it is characterized in that: described terminal box body (101) has the containing cavity (102) with extraneous gas-liquid sealing, the both ends of described terminal box body (101) extend to form the cable passage (103a that a pair of and described containing cavity (102) is conducted downwards along Y direction respectively, 103b), described terminal box body (101), described cable passage (103a, 103b) the common encirclement forms a host cavity, described radiating module (301) is positioned at the outside of described operating circuit (203), described radiating module (301) is contained in the described host cavity with described operating circuit (203), described pin (204) is positioned at described containing cavity (102) inside, described anodal jockey (401) passes corresponding cable passage respectively with negative pole jockey (402), and (103a 103b) is electrically connected at the inner and corresponding pin (204) of described containing cavity (102).

2. a kind of photovoltaic module terminal box according to claim 1, it is characterized in that: 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).

3. a kind of 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. according to the arbitrary described a kind of photovoltaic module terminal box of claim 1 to 3, it is characterized in that: described terminal box body (101) is made by plastic material, and described radiating module (301) is made by metal material.

5. a kind of photovoltaic module terminal box according to claim 4 is characterized in that: described radiating module (301) is formed with radiating fin (302) on the part surface at least.