CN102306672B

CN102306672B - Modular junction box

Info

Publication number: CN102306672B
Application number: CN2011102975430A
Authority: CN
Inventors: 陈新初
Original assignee: Suzhou Goodark New Energy Technology Co Ltd
Current assignee: Suzhou Goodark New Energy Technology Co Ltd
Priority date: 2011-09-30
Filing date: 2011-09-30
Publication date: 2013-04-17
Anticipated expiration: 2031-09-30
Also published as: CN102306672A

Abstract

The invention discloses a modular junction box which comprises a junction box body, a working circuit module, a heat radiation module and a connecting module, wherein the junction box body is provided with a containing chamber which is separated from an external environment in a gas-liquid sealing manner; the working circuit module comprises a base plate, a working circuit and a plurality of pins, wherein the working circuit is arranged on the base plate; the plurality of pins are electrically connected with the working circuit; the working circuit is arranged outside the containing chamber; the pins are arranged in the containing chamber; the heat radiation module is sheathed outside the working circuit; a positioning module with a first positioning part and a second positioning part is arranged in the containing chamber, wherein the first positioning part is used for positioning the pins, and the second positioning part is used for positioning a bus bar, so that the pins and the bus bar are conducted; the pins are compressed with the positioning module through a first compression mechanism; and the bus bar and the positioning module are pressed tightly through a second compression mechanism. As readily seen, compared with the traditional junction box, the junction box provided by the invention is simple to operate in the mounting process, once the junction box is required to be dismantled, the junction box is simple and convenient to dismantle, and the joint surface can not be damaged.

Description

Modular junction box

Technical field

The present invention relates to a kind of Modular junction box for photovoltaic module.

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.Photovoltaic component terminal box is the crucial jockey that solar components is made system, and the effect of terminal box is to prevent from producing when the solar components part is blocked the hot spot effect.If damaging or connect not firm meeting, terminal box cause terminal box to work, thereby when the solar components part is blocked, whole solar components system is with regard to cisco unity malfunction, the part that is blocked will be sent a large amount of heats, serious meeting burns out assembly, therefore in photovoltaic device, the status of photovoltaic component terminal box is extremely important.

In the prior art, photovoltaic component terminal box is to adopt gluing mode to be fixed in the surface of photovoltaic module, in this process, exist a series of wiring step to be communicated with photovoltaic module and terminal box circuit: at first busbar to be mounted to fixed strip, with the fixed strip gluing to photovoltaic module surface, again with the remainder of terminal box as a whole gluing to the photovoltaic module surface and so that fixing busbar be positioned to conduction position.The shortcoming of said structure is, owing to be loaded into the fixed strip gluing of busbar to the photovoltaic module surface, therefore, operation easier is larger in the process of installing, corresponding therewith, in case when needing to remove terminal box, just need this fixed strip is pulled down from the surface of photovoltaic module, not only may destroy joint face, and process is loaded down with trivial details.

Summary of the invention

For overcoming above-mentioned shortcoming, the object of the present invention is to provide a kind of Modular junction box of easy accessibility.

In order to reach above purpose, the technical solution used in the present invention is: a kind of Modular junction box, it comprises the terminal box body, the operating circuit module, radiating module, link block, the terminal box body has containing cavity, this containing cavity and extraneous gas-liquid sealing, the operating circuit module comprises substrate, the a plurality of pins that are arranged at the operating circuit on the substrate and are electrically connected with operating circuit, operating circuit is arranged on the outside of containing cavity, pin is arranged at containing cavity inside, radiating module is sheathed on the outside of operating circuit, be provided with locating module in the containing cavity, locating module has for the first location division with the pin location, be used for the second location division with the busbar location, so that pin, be conducted between the busbar, pin compresses mutually by the first hold-down mechanism and locating module, and busbar compresses mutually by the second hold-down mechanism and locating module.

As further improvement, link block comprises anodal jockey and negative pole jockey, and anodal jockey and negative pole jockey are located in respectively locating module, and is electrically connected with corresponding pin by conducting strip.

As further improvement, locating module has substrate in horizontal plane and the basal wall in vertical plane, the front end of pin has breach, and the pin of operating circuit module is located in the substrate after entering containing cavity, and busbar is inserted in the breach after entering and walking around basal wall behind the containing cavity.

As further improvement, the correspondence position of pin, substrate is provided with screwed hole, and pin is pressed in the substrate by screw.

As further improvement, be provided with buckle on the terminal box body, in the time of in operating circuit module, radiating module are installed on the terminal box body, buckle is pressed in operating circuit module, radiating module in the terminal box body.

As further improvement, the second hold-down mechanism comprises compression bar, is provided with in the compression bar for the spring leaf that will be clamped in around the busbar of basal wall on the basal wall.

As further improvement, be provided with for the guiding mechanism that guides between compression bar, the locating module, be used for the mutually locking mechanism of locking.

As further improvement, locating module is shaped in the terminal box body.

As further improvement, locating module, terminal box body adopt split-type structural.

As further improvement, compression bar, locating module are made by the high temperature resistant nylon material.

Owing to adopted technique scheme, be not difficult to find out the present invention than conventional electrical connectors, simple to operate in the process of installing, in case also very easy when needing to remove terminal box, and can not destroy joint face.

Description of drawings

Accompanying drawing 1 is the schematic perspective view of Modular junction box embodiment of the present invention;

Accompanying drawing 2 is the local enlarged diagram of accompanying drawing 1;

Accompanying drawing 3 is for Modular junction box is in the schematic diagram of state to be connected according to the present invention;

Accompanying drawing 4 is for Modular junction box is in the schematic diagram of connection status according to the present invention.

Embodiment

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

Referring to accompanying drawing 1, Modular junction box in the present embodiment, comprise terminal box body 101, operating circuit module 201, radiating module 301, link block 401,402, terminal box body 101 has containing cavity 102, this containing cavity 102 and extraneous gas-liquid sealing, a plurality of pins 203 that operating circuit module 201 comprises substrate 202, is arranged at the operating circuit on the substrate 202 and is electrically connected with operating circuit, operating circuit is arranged on the outside of containing cavity 102, pin 203 is arranged at containing cavity 102 inside, and radiating module 301 is sheathed on the outside of operating circuit.

Terminal box body 101 comprises around the sidewall of Z axis sealing, 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 104,104 of sidewall top and lids are provided with seal 105, thereby form a containing cavity 102 with extraneous phase gas-liquid sealing.Be provided with locating module 501 in the containing cavity 102, locating module 501 has for the first location division that pin 203 is located, is used for the second location division with the busbar location, so that be conducted between the pin 203, busbar, pin 203 compresses with locating module 501 mutually by the first hold-down mechanism, and busbar compresses with locating module 501 mutually by the second hold-down mechanism.

Link block 101 comprises anodal jockey 401 and negative pole jockey 402, and anodal jockey 401 is located in respectively locating module 501 with negative pole jockey 402 in containing cavity 102, and by conducting strip 206 and corresponding pin 203 electrical connections.The Main Function that locating module 501 rose is communicated with in containing cavity 102 positioned internal with busbar for guiding pin 203, it can be shaped in the terminal box body 101, also can be as in the present embodiment: locating module 501, terminal box body 101 adopt split-type structurals, thereby compression bar 504, locating module 501 are made by the high temperature resistant nylon material.

Referring to accompanying drawing 2, locating module 501 has substrate 502 and the basal wall in vertical plane 503 in horizontal plane, and the front end of pin 203 has breach 203a, be located in the substrate 502 after the pin 203 of operating circuit module 201 enters containing cavity 102, busbar is inserted in the breach 203a after entering and walking around basal wall 503 behind the containing cavity 102.

The correspondence position of pin 203, substrate 502 is provided with screwed hole 203b, and pin 203 is pressed in the substrate 502 by screw 204; And be provided with buckle 103 on the terminal box body 101, thereby when operating circuit module 201, radiating module 301 are installed on terminal box body 101 when interior, buckle 103 is pressed in operating circuit module 201, radiating module 301 in the terminal box body 101, therefore, screw 204 does not bear operating circuit module 201 at this moment, radiating module 301 only plays along the fixation of z axle, and do not bear along the power of x axle, born by buckle 103 along the compression dynamics of x axle.

The second hold-down mechanism comprises compression bar 504, is provided with in the compression bar 504 for the spring leaf 207 that will be clamped in around the busbar of basal wall 503 on the basal wall 503.Also further be provided with for the guiding mechanism that guides between compression bar 504, the locating module 501, be used for the mutually locking mechanism of locking.

Operating circuit module 201 comprises substrate 202, is fixedly installed on the operating circuit on the substrate 202, the pin 203 that is electrically connected with operating circuit, and substrate 202 is tabular; Thereby the cross section of radiating module 301 takes the shape of the letter U and has inner chamber be used to accommodating substrate 202, is formed with radiating fin 302 at least part of surface of its upper surface to strengthen radiating effect; Be provided with along z axial guiding mechanism between substrate 202 and the radiating module 301, the upper surface of substrate 202 is formed with the convex epirelief 205 that extends along the z direction of principal axis, radiating module 301 and this convex epirelief 205 corresponding position shapes have groove 303, and this guiding mechanism slips into substrate 202 inner chamber of radiating module 301 along the guiding of z direction of principal axis.Those skilled in the art will appreciate that, the operating circuit that is arranged on the substrate 202 is the inner chamber that is contained in radiating module 301, pin 203 then is the containing cavity 102 that is positioned at sealing, so the huge operating circuit aerial radiating effect of caloric value is obvious.

Thereby, the Modular junction box with as above structure shown in accompanying drawing 3 and accompanying drawing 4 is in the process of installing, only need at first terminal box body 101 to be fixed in the surface of photovoltaic module, finish afterwards the busbar location of (schematically representing with slender threads among the figure)---be positioned on the locating module 501, compress by hold-down mechanism, last closure body 104, whole installation process is simple, in case also very easy when needing to remove terminal box, and can not destroy joint face.

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 technique understand content of the present invention and is implemented; can not limit protection scope of the present invention with this; all equivalences that Spirit Essence is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.

Claims

1. Modular junction box, it comprises terminal box body (101), operating circuit module (201), radiating module (301), link block (401,402), described terminal box body (101) has containing cavity (102), this containing cavity (102) and extraneous gas-liquid sealing, described operating circuit module (201) comprises substrate (202), the a plurality of pins (203) that are arranged at the operating circuit on the described substrate (202) and are electrically connected with described operating circuit, described operating circuit is arranged on the outside of described containing cavity (102), described pin (203) is arranged at described containing cavity (102) inside, described radiating module (301) is sheathed on the outside of described operating circuit, it is characterized in that: be provided with locating module (501) in the described containing cavity (102), described locating module (501) has for the first location division with described pin (203) location, be used for the second location division with the busbar location, so that described pin (203), be conducted between the busbar, described pin (203) compresses with described locating module (501) mutually by the first hold-down mechanism, and described busbar compresses with described locating module (501) mutually by the second hold-down mechanism.

2. Modular junction box according to claim 1, it is characterized in that: described link block comprises anodal jockey (401) and negative pole jockey (402), described anodal jockey (401) and negative pole jockey (402) are located in respectively described locating module (501), and by conducting strip (206) and corresponding pin (203) electrical connection.

3. Modular junction box according to claim 1, it is characterized in that: described locating module (501) has substrate (502) and the basal wall in vertical plane (503) in horizontal plane, the front end of described pin (203) has breach (203a), the pin (203) of described operating circuit module (201) is located in the described substrate (502) after entering described containing cavity (102), and described busbar is inserted in the described breach (203a) after entering and walking around described basal wall (503) behind the described containing cavity (102).

4. Modular junction box according to claim 3, it is characterized in that: the correspondence position of described pin (203), substrate (502) is provided with screwed hole (203b), and described pin (203) is pressed in the described substrate (502) by screw (204).

5. Modular junction box according to claim 4, it is characterized in that: be provided with buckle (103) on the described terminal box body (101), when described operating circuit module (201), radiating module (301) were installed in the described terminal box body (101), described buckle (103) was pressed in described operating circuit module (201), radiating module (301) in the described terminal box body (101).

6. Modular junction box according to claim 3, it is characterized in that: described the second hold-down mechanism comprises compression bar (504), is provided with in the described compression bar (504) for the spring leaf (207) that will be clamped in around the busbar of described basal wall (503) on the described basal wall (503).

7. Modular junction box according to claim 6 is characterized in that: be provided with for the guiding mechanism that guides between described compression bar (504), the locating module (501), be used for the mutually locking mechanism of locking.

8. according to claim 1 to 7 arbitrary described Modular junction boxes, it is characterized in that: described locating module (501) is shaped in the described terminal box body (101).

9. according to claim 1 to 7 arbitrary described Modular junction boxes, it is characterized in that: described locating module (501), terminal box body (101) adopt split-type structural.

10. according to claim 6 or 7 described Modular junction boxes, it is characterized in that: described compression bar (504), locating module (501) are made by the high temperature resistant nylon material.