CN211377975U

CN211377975U - Lid, photovoltaic module terminal box and photovoltaic module of photovoltaic module terminal box

Info

Publication number: CN211377975U
Application number: CN201922214005.5U
Authority: CN
Inventors: 赵威; 陈振博; 沈灿军; 朱琛; 吕俊
Original assignee: Taizhou Lerri Solar Technology Co Ltd
Current assignee: Taizhou Longi Solar Technology Co Ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-08-28
Anticipated expiration: 2029-12-11

Abstract

The utility model provides a lid, photovoltaic module terminal box and photovoltaic module of photovoltaic module terminal box, the lid is used for the lid to close the box body of photovoltaic module terminal box, including lid body and at least one separation blade, the box body phase-match of lid body and terminal box, detachably installs in the box body of terminal box, and the separation blade includes coupling assembling and seal assembly, and coupling assembling connects lid body and seal assembly, seal assembly detachably and box body or this body coupling of lid. After photovoltaic module goes up fixed mounting on the power station support, when needing to carry out the encapsulating to the junction box, can not dismantle photovoltaic module, directly carry out the encapsulating through the encapsulating pore pair on the terminal box to the terminal box of installing on the power station support, exhaust through the exhaust hole, and seal the encapsulating pore and/or the exhaust hole after the encapsulating through the separation blade, wait for sealed glue to solidify, accomplish the encapsulating operation, can avoid photovoltaic module's dismantlement and installation, the encapsulating efficiency has been improved, and can avoid photovoltaic module's damage.

Description

Lid, photovoltaic module terminal box and photovoltaic module of photovoltaic module terminal box

Technical Field

The utility model relates to a photovoltaic technology field especially relates to a lid, photovoltaic module terminal box and photovoltaic module of photovoltaic module terminal box.

Background

The photovoltaic module junction box is a connector between the photovoltaic module and the control device, and mainly used for connecting the photovoltaic module with an external circuit. The photovoltaic module junction box is installed at the back of photovoltaic module, and the junction box includes box body and lid, and the inside electron device that sets up of box body, outside cable pass the wiring hole on the box body and are connected with the inside electron device of box body.

In the use of terminal box, need carry out the encapsulating to the box body and seal. However, in the installation process of the photovoltaic module, it is often found that the installed junction box is not filled with glue, and the junction box needs to be filled with glue. Or, in the use process of the junction box, the solidified sealant in the box body needs to be removed often because of the damage of the electronic devices in the box body, and the junction box is filled with the sealant again after the electronic devices with faults are replaced.

At present, when glue is filled into an installed junction box, the box cover is opened after the whole photovoltaic assembly is detached from a power station support, the sealant is filled again, after the filled sealant is solidified, the box cover is covered, and then the photovoltaic assembly is installed on the power station support. At the encapsulating in-process, need dismantle with the whole photovoltaic module of installation, not only consuming time, cause the damage to photovoltaic module easily moreover in operation process.

SUMMERY OF THE UTILITY MODEL

The utility model provides a lid and photovoltaic module terminal box of photovoltaic module terminal box aims at improving the encapsulating efficiency of terminal box, reduces the damage of encapsulating in-process to photovoltaic module.

In a first aspect, an embodiment of the present invention provides a box cover of a junction box of a photovoltaic module, including a box cover body and at least one blocking piece;

the box cover body is matched with the box body of the photovoltaic assembly junction box and detachably mounted on the box body of the photovoltaic assembly junction box;

the baffle plate comprises a connecting assembly and a sealing assembly;

the connecting assembly is used for connecting the box cover body and the sealing assembly;

the sealing assembly is connected with the connecting assembly and detachably connected with the box body of the photovoltaic assembly junction box or the box cover body.

Optionally, the sealing assembly comprises a sealing plug.

Optionally, the sealing assembly comprises a sealing seal.

Optionally, the connecting assembly comprises a flexible material.

Optionally, the connecting assembly and the sealing assembly are integrally formed.

In a second aspect, an embodiment of the present invention provides a photovoltaic module junction box, including a box body, at least one glue filling hole, at least one air exhaust hole, and a box cover as provided in the first aspect of this embodiment;

the blocking piece is used for blocking the glue filling hole and/or the exhaust hole.

Optionally, the glue filling hole, the exhaust hole and at least one of the exhaust holes are formed in the side wall of the box body.

Optionally, the glue filling hole, the exhaust hole and at least one of the exhaust holes are formed in the box cover.

Optionally, in the gravity direction, the exhaust hole is located above the glue filling hole.

Optionally, the junction box further comprises a sealing gasket, and the sealing gasket is used for sealing a gap formed when the box cover and the box body are closed.

In a third aspect, an embodiment of the present invention provides a photovoltaic module, which includes a solar panel and a photovoltaic module junction box installed on the solar panel as described above.

In this embodiment, the box cover of the photovoltaic module junction box may include a box cover body and at least one blocking piece, the blocking piece includes a connecting assembly and a sealing assembly, when the junction box fixedly arranged on the power station bracket needs to be filled with glue, the photovoltaic module can not be detached, punching holes on the box body or the box cover body of the junction box to form a glue filling hole and an exhaust hole, covering and sealing the junction box by using the box cover, the junction box in the photovoltaic module arranged on the power station bracket is filled with glue through the glue filling hole on the junction box body or the box cover body, the air is exhausted through the exhaust hole, after the glue filling is finished, the blocking piece can be used for blocking the glue filling hole and/or the air exhaust hole, after the sealant is solidified, the glue filling is finished, the disassembly and the assembly of the whole photovoltaic assembly can be avoided, the whole junction box is quickly filled with the sealant, the glue filling efficiency is improved, and the photovoltaic assembly can be prevented from being damaged in the assembly and disassembly processes.

The embodiment of the utility model provides an in, photovoltaic module terminal box can be used for being connected of photovoltaic module and external circuit, and this photovoltaic module terminal box includes: box body and lid are provided with on the lateral wall of box body or on the lid and are used for to holding the encapsulating hole of chamber encapsulating to and be used for carminative exhaust hole, the lid includes lid body and separation blade, and the separation blade is used for sheltering from sealed encapsulating hole and/or exhaust hole. In this embodiment, back on photovoltaic module fixed mounting is on the power plant support, when needing to carry out the encapsulating to this terminal box, can not dismantle photovoltaic module, under the lid of terminal box closed the state, direct encapsulating pore pair of box body or lid through the terminal box carries out the encapsulating to the terminal box of installing in the photovoltaic module on the power plant support, exhaust through the exhaust hole, can be quick with sealed glue fill whole terminal box, after the encapsulating is accomplished, can seal encapsulating pore and/or exhaust hole through the separation blade, wait for sealed glue to solidify, accomplish the encapsulating operation. The disassembly and the assembly of the whole photovoltaic assembly can be avoided, the glue pouring efficiency is improved, and the damage to the photovoltaic assembly in the assembly and disassembly process can be avoided.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 shows a schematic structural diagram of a junction box cover of a photovoltaic module according to a first embodiment of the present invention;

fig. 2 is a schematic structural diagram illustrating a box cover of a first embodiment of the present invention cooperating with a box body of a junction box of a photovoltaic module;

fig. 3 is a schematic structural diagram illustrating a connection between a box cover and a box body of a junction box of a photovoltaic module according to a first embodiment of the present invention;

fig. 4 shows a usage state diagram of a photovoltaic module junction box cover in the first embodiment of the present invention.

Description of reference numerals:

101-box cover body, 1011-second glue filling hole, 1012-second vent hole, 102-baffle, 1021-connecting component, 1022-sealing component, 200-box body, 201-containing cavity, 202-wiring hole, 203-external cable, 204-first glue filling hole, 205-first vent hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example one

Referring to fig. 1, fig. 1 shows a structural schematic diagram of a first embodiment of the present invention, which is a box cover of a photovoltaic module junction box. Referring to fig. 1, the box cover may include: a box cover body 101 and at least one blocking piece 102.

Wherein, lid body 101 and the box body phase-match of photovoltaic module terminal box, detachably install in the box body of photovoltaic module terminal box. The flap 102 includes a connection assembly 1021 and a seal assembly 1022. A connection assembly 1021 connects the lid body 101 and the seal assembly 1022. The sealing member 1022 is connected to the connecting member 1021, and is detachably connected to the box body or the box cover body 101 of the photovoltaic module junction box. In this embodiment, lid body 101 and the box body phase-match of photovoltaic module terminal box, lid body 101 can adopt rigid plastic injection moulding, can connect through the buckle, bolted connection, or connected modes such as adhesion are connected with the box body of photovoltaic module terminal box to with the box body cooperation of photovoltaic module terminal box, detachable installs in the box body of terminal box, protects the inside electron device of box body. As shown in fig. 1, the blocking plate 102 may include a connecting component 1021 and a sealing component 1022, wherein one end of the connecting component 1021 is fixedly connected with the box cover body 101, and the other end is fixedly connected with the sealing component 1022. During the in-service use, the structure of lid body and box body can set up according to the demand, and lid body and box body can realize dismantling the connection through arbitrary connected mode, and this embodiment does not do specific restriction to this.

Referring to fig. 2, fig. 2 shows a box body complex schematic structure diagram of a lid and photovoltaic module terminal box in the first embodiment of the present invention, as shown in fig. 2, a side of box body 200 can be provided with and hold chamber 201, and hold chamber 201 inside can install electronic devices such as diode and binding post, and the concrete structure of box body 200 can set up according to the demand, and this embodiment does not do the restriction to this. In the actual use process, when the box body 200 installed on the photovoltaic module needs to be filled with glue, the box body 200 can be perforated, the first glue filling hole 204 is formed in the first side wall of the box body 200, and the first air exhaust hole 205 is formed in the second side wall of the box body 200. After the box body 200 is closed by using the box cover body 101, the accommodating cavity 201 can be communicated with the outside through the first glue filling hole 204 and the first air discharging hole 205. The first sidewall and the second sidewall may be two different sidewalls, or may be the same sidewall (two sidewalls are taken as an example in fig. 2), and the position of the first exhaust hole 205 is only required to be higher than the position of the first glue filling hole 204. The number and size of the first glue filling holes 204 and the second air exhaust holes 205 can be set according to the requirement, and this embodiment does not specifically limit this.

Referring to fig. 3, fig. 3 shows the utility model provides a structural schematic diagram that box lid and photovoltaic module terminal box are connected in the first embodiment, combine fig. 2 and fig. 3, after forming first encapsulating hole 204 and first exhaust hole 205, can connect lid body 101 and box body 200, cover through lid body 101 and close sealed chamber 201 that holds after, use the encapsulating instrument, the encapsulating is towards installing the terminal box in the photovoltaic module on the power station support in the first encapsulating hole 204 on the box body 200, exhaust through first exhaust hole 205, the quick whole chamber 201 that holds that fills with sealed glue. After the sealant is filled to the accommodating cavity 201, the sealing component 1022 is connected with the box body 200 through the first glue filling hole 204 and the first air exhaust hole 205 on the box body 200 respectively, the sealing component 1022 is used for shielding the first glue filling hole 204 and the first air exhaust hole 205, the sealant is prevented from flowing out of the accommodating cavity 201, and the sealant is poured after the sealant is solidified.

Referring to fig. 4, fig. 4 shows a usage state diagram of a photovoltaic module junction box lid in the first embodiment of the present invention, with reference to fig. 2, in the glue filling process, holes may not be punched on the box body 200, holes are directly punched on the lid body 101, and a second glue filling hole 1011 and a second exhaust hole 1012 are formed on the lid body 101. In the encapsulating process, carry out the encapsulating through second encapsulating hole 1011 on the lid body 101, exhaust through second exhaust hole 1012, fill up and hold the chamber 201 after sealed glue, sealing component 1022 is connected with lid body 101 through second encapsulating hole 1011 and second exhaust hole 1012 on the lid body 101 respectively, use sealing component 1022 to shelter from second encapsulating hole 1011 and second exhaust hole 1012, prevent sealed glue from flowing out from holding chamber 201, wait for sealed glue solidification back, accomplish the encapsulating.

It should be noted that, in the actual use process, the glue filling hole and the air exhaust hole may be simultaneously disposed on the box body, or simultaneously disposed on the box cover body, or may be respectively disposed on the box body and the box cover body, which is not limited in this embodiment.

Example two

As shown in fig. 2 and 3, in this embodiment, the photovoltaic module junction box may include: a case 200 and a lid.

In this embodiment, the junction box includes a box body 200 and a box cover shown in the first embodiment, as shown in fig. 1 and fig. 2, a containing cavity 201 may be disposed on one side surface of the box body 200, and electronic devices such as diodes and connection terminals may be installed inside the containing cavity 201. During actual use, a plurality of wiring holes 202 can be formed in the side wall of the box body 200, an external cable 203 can enter the accommodating cavity 201 through the wiring holes 202, and after the external cable 203 enters the accommodating cavity 201, the external cable can be fixed in the accommodating cavity 201 through the wiring terminals and electrically connected with the diodes in any form. In practical use, any kind and number of electronic devices may be disposed in the accommodating cavity 201, and the present embodiment does not specifically limit the kind, number, model, position, and installation manner of the electronic devices in the accommodating cavity 201, and the connection manner between the electronic devices.

In the embodiment of the present invention, the box body 200 can be made of hard plastic by injection molding. The box cover body 101 can be detachably connected with the box body 200 through a fastening connection, a bolt connection or other connection modes, and covers the box body 200. The box cover body 101 is used for isolating the accommodating cavity 201 from the external environment and protecting the electronic device in the accommodating cavity 201. In practical use, the box body 200 and the box cover body 101 can be detachably connected in any connection manner, and the connection manner between the box body 200 and the box cover body 101 is not particularly limited in this embodiment.

As shown in fig. 2, a first glue filling hole 204 may be formed in a first side wall of the box body 200, and when the box cover body 101 is closed on the box body 200, the accommodating cavity 201 may be communicated with the outside through the first glue filling hole 204. Meanwhile, a first air vent 205 may be formed in a second sidewall of the box body 200, and similarly, when the box cover body 101 is covered on the box body 200, the accommodating cavity 201 may be communicated with the outside through the first air vent 205. The first sidewall and the second sidewall may be two different sidewalls or may be the same sidewall (two sidewalls are taken as an example in fig. 2). The number and size of the first glue filling holes 204 and the first air discharging holes 205 can be set according to the requirement, and this embodiment does not specifically limit this.

As shown in fig. 2 and fig. 3, the first sidewall and the second sidewall of the box 200 may be two opposite sidewalls, and at this time, the first glue filling hole 204 formed in the first sidewall and the first air discharging hole 205 formed in the second sidewall are two through holes respectively formed in the two opposite sidewalls, and the first glue filling hole 204 and the first air discharging hole 205 may be disposed oppositely or may be disposed at a certain angle in a staggered manner. When first lateral wall and second lateral wall set up relatively, first encapsulating hole 204 is the through-hole of the relative both sides of box body 200 with first exhaust hole 205, and when encapsulating through first encapsulating hole 204, exhausts at relative opposite side through first exhaust hole 205, can be quick with whole chamber 201 that holds irritate fully, improve encapsulating efficiency and quality.

In this embodiment, the baffle plate 102 may include a connection component 1021, and a sealing component 1022 disposed at one end of the connection component 1021. The sealing assembly 1022 is used for shielding and sealing the first potting hole 204 and/or the first vent hole 205. When the sealing component 1022 rotates around the box cover body 101, the sealing component 1022 can abut against the first glue filling hole 204 and/or the first air vent 205, so that the first glue filling hole 204 and/or the first air vent 205 are shielded, and the contact and separation between the sealing component 1022 and the first glue filling hole 204 and/or the first air vent 205 are realized through the connecting component 1021. The connecting assembly 1021 is used for connecting the box cover body 101 and the sealing assembly 1022, the sealing assembly 1022 is used for shielding the first glue filling hole 204 and/or the first vent 205, after the glue filling is finished, the sealing assembly 1022 shields the first glue filling hole 204 and/or the first vent 205, and the sealing assembly 1022 can conveniently shield the first glue filling hole 204 and/or the first vent 205. In practical applications, the connecting component 1021 may be a connecting component such as a hinge and a connecting band, and the form of the connecting component 1021 is not particularly limited in this embodiment.

In this embodiment, referring to fig. 3, the connecting component 1021 may be a connecting band made of a flexible material, the flexible material may be a relatively stiff and bendable plastic, and the sealing component 1022 may be a circular flap made of a relatively stiff plastic. The connecting member 1021 and the sealing member 1022 can be integrally formed, and when the connecting member and the sealing member are integrally formed, the durability of the flap can be improved, and the manufacturing cost can be reduced. The connecting assembly and the sealing assembly may also be made of metallic materials such as aluminum, copper and stainless steel. The specific shape and material of the connecting component and the sealing component can be set according to the requirement, which is not limited by the embodiment. Wherein, the box cover body 101, the connecting component 1021 and the sealing component 1022 may be integrally formed. The integrally formed lid body 101, connection assembly 1021, and seal assembly 1022 facilitate manufacturing and transportation and use of the connection assembly 1021 and seal assembly 1022.

The embodiment of the utility model provides an in, sealing component 1022 can be the sealing plug, and when sealing component 1022 butt first encapsulating hole 204, can stop first encapsulating hole 204 and/or first exhaust hole 205, conveniently sealed first encapsulating hole 204 and/or first exhaust hole 205.

Optionally, the sealing component 1022 may also be a sealing seal. When the sealing member 1022 is an adhesive sealing tape, the sealing member 1022 may be conveniently used to seal the first filling hole 204 and/or the first venting hole 205. The shape and material of the sealing strip can be set according to the requirement, and the embodiment does not limit the shape and material.

Optionally, a sealing gasket may be disposed between the box body 200 and the box cover body 101, and when the box cover body 101 is buckled to the box body 200, the sealing gasket may seal a gap between the box body 200 and the box cover body 101, so as to isolate the accommodating cavity 201 and the external environment, and prevent the sealant from leaking out from a gap between the box cover body 101 and the box body 200 during the glue filling process. In practical use, the specific structure of the sealing gasket can be set according to requirements, and the embodiment does not limit the structure.

Optionally, in this embodiment, the first air vent 205 is located above the first glue filling hole 204 in the gravity direction. When first exhaust hole 205 is located the top of first encapsulating hole 204 in the direction of gravity, can prevent the encapsulating in-process, sealed glue from flowing out from first exhaust hole 205 under the action of gravity, influence encapsulating efficiency, sealed glue of waste.

The embodiment of the utility model provides an in, box body 200 can be through holding one side and the photovoltaic module fixed connection at chamber 201 bottom place, and box body 200 can pass through the screw fixation on photovoltaic module, also can bond on photovoltaic module through the colloid, and the connected mode between box body and the photovoltaic module can be selected according to the demand, and this embodiment does not limit to this. As shown in fig. 3, the side wall where the first glue filling hole 204 is located is a first side wall, the side wall where the first vent hole 205 is located is a second side wall, after the junction box is installed and fixed, the first glue filling hole 204 can be located below the first vent hole 205, the height of the first glue filling hole 204 in the gravity direction can be lower than that of the first vent hole 205, the glue filling operation is convenient, the whole accommodating cavity 201 is filled easily, the first vent hole 205 can play a role in overflowing in the glue filling process, and when the first vent hole 205 overflows the sealant, the accommodating cavity 201 can be determined to be filled. In practical use, the first side wall and the second side wall may also be two adjacent side walls or the same side wall, the positions of the first side wall and the second side wall on the junction box, the setting position of the first glue filling hole 204 on the first side wall and the setting position of the first air discharging hole 205 on the second side wall may be set according to requirements, and this embodiment does not specifically limit this.

During practical use, the side of the bottom of the accommodating cavity 201 can be fixedly connected with the photovoltaic module, and the whole junction box is fixedly mounted on the photovoltaic module. After the junction box is installed on the photovoltaic module, the whole photovoltaic module can be fixedly installed on the power station support, and the connection between the photovoltaic module and an external circuit is realized through the junction box. If the junction box is not filled with glue before the photovoltaic module is installed on the power station bracket, the junction box needs to be filled with glue; or when needs are changed the inside electron device of terminal box after the encapsulating, can demolish and hold sealed glue that has solidified in the chamber 201, after changing electron device, when needing to give the terminal box encapsulating again, can not dismantle photovoltaic module from the power station support, hold chamber 201 through lid body 101 lock, use the encapsulating instrument to hold the inside encapsulating of chamber 201 through first encapsulating hole 204, exhaust through first exhaust hole 205, when holding in the chamber 201 and being full of sealed glue, use seal assembly 1022 to shelter from first encapsulating hole 204 and first exhaust hole 205, the encapsulating operation completion to the terminal box is shown to the sealed gluey back of waiting for sealed glue to solidify.

It should be noted that, in the actual use process, the air vent and/or the glue filling hole may also be disposed on the box cover body 101. As shown in fig. 4, a second air vent 1011 and/or a second glue hole 1012 may be provided on the box cover body 101. In the glue filling process, glue can be filled through the second glue filling hole 1011, and air is exhausted through the second air exhaust hole 1012. When the air vent and/or the glue filling hole are/is located on the box cover body, the connecting component 1021 can be adjusted, so that the sealing component 1022 can be detachably connected with the second glue filling hole 1011 or the second air vent 1012 on the box cover body 101. For example, the connection component 1021 may be made of a flexible material, the sealing component 1022 may be made of a sealing plug, and the sealing component 1022 may directly plug the second glue filling hole 1011 and/or the second air exhaust hole 1012 on the box cover body 101 through the flexible connection component 1021, so as to achieve detachable connection of the sealing component and the box cover body. The selection of coupling assembling and seal assembly to and the concrete position that sets up of exhaust hole and encapsulating hole can set up as the demand, and this embodiment does not do the restriction to this. In the in-service use process, encapsulating hole and exhaust hole can set up simultaneously on the box body, perhaps set up simultaneously on the lid body, also can set up respectively on box body and lid body, and this embodiment does not do the restriction to this.

EXAMPLE III

The embodiment of the utility model provides an in, still provide a photovoltaic module, this photovoltaic module includes solar cell panel and installs on solar cell panel as the utility model discloses embodiment two the photovoltaic module terminal box.

While the embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many modifications may be made by one skilled in the art without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. The utility model provides a lid of photovoltaic module terminal box which characterized in that:

comprises a box cover body and at least one baffle plate;

the baffle plate comprises a connecting assembly and a sealing assembly;

2. The cartridge cover of claim 1,

the sealing assembly comprises a sealing plug or a sealing seal.

3. The cartridge cover of claim 1,

the connection assembly includes a flexible material.

4. The cartridge cover of claim 1,

the coupling assembling with seal assembly integrated into one piece.

5. A photovoltaic module junction box is characterized in that,

comprises a box body and a box cover as claimed in any one of claims 1 to 4;

the junction box also comprises at least one glue filling hole and at least one exhaust hole,

6. The junction box of claim 5,

the encapsulating hole, the exhaust hole, at least one set up in on the lateral wall of box body.

7. The junction box of claim 5,

the encapsulating hole, the exhaust hole, at least one set up in on the box cover.

8. The junction box of claim 5, wherein said vent hole is located above said glue hole in a direction of gravity.

9. The junction box of claim 5, further comprising a gasket for sealing a gap formed when the box cover is closed with the box body.

10. A photovoltaic module comprising a solar panel and the photovoltaic module junction box of claim 5 mounted on the solar panel.