CN218217284U

CN218217284U - Novel photovoltaic junction box

Info

Publication number: CN218217284U
Application number: CN202222444941.7U
Authority: CN
Inventors: 郑欢; 程淦; 曾飞亮
Original assignee: Hefei GCL Integrated New Energy Technology Co Ltd
Current assignee: Hefei GCL Integrated New Energy Technology Co Ltd
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2023-01-03
Anticipated expiration: 2032-09-15

Abstract

The utility model relates to a novel photovoltaic junction box, which comprises a box body and a connector, wherein the box body is directly connected with the connector, and components in the box body are connected with components in the connector through metal wires; the opening direction of the connector is vertically upward, namely, the opening direction is vertical to the surfaces of all components in the box body. The utility model solves the problems existing in the prior junction box during the processes of assembly, transportation, test and use; the utility model realizes the design of the cable-free junction box by directly combining the connector and the box body, and the interference of cables is not needed to be considered when the installation and the package are carried out; the opening direction of the connector is vertically upward, namely, the opening direction is perpendicular to the surfaces of all components in the box body, when EL/IV test is carried out, a test probe on a test instrument can be directly butted with the connector, the conversion of a test tool is omitted, and the installation, purchase and maintenance and labor cost of the test tool are omitted.

Description

Novel photovoltaic junction box

Technical Field

The utility model belongs to the technical field of the solar energy component manufacturing technology and specifically relates to a novel photovoltaic terminal box.

Background

After the positive pole and the negative pole of the solar module battery are led out from the back plate, a special electrical box is needed to realize the connection operation with the load, and the electrical box is called as a junction box. The junction box has the following functions: 1. after the electrodes are led out, the electrodes are generally only a few tin-plated strips, which are inconvenient for electrical connection with a load, and the electrodes need to be welded or clamped on a formed electric interface which is convenient to use, so that the problem is solved by the junction box; 2. when the electrode is led out, the sealing performance is damaged, and the sealing performance needs to be compensated by coating silica gel, so that the junction box simultaneously plays a role in enhancing the connection strength and beautifying; 3. the positive and negative electrodes of the power supply are led out through the electric leads in the junction box, so that the electrode is prevented from being aged by direct contact with the outside.

With the continuous upgrading of the photovoltaic industry technology, the automation degree is continuously improved, and the maximization of the yield and the productivity improvement is the inevitable choice of the assembly factory. The junction box used at the present stage is a combination of a cable, a connector and a box body, and the box body is connected with the connector through the cable, as shown in the attached figure 1. The existing junction box has the following defects: 1. because the winding lengths and the winding modes of different cables cause certain limitations in field installation and packaging; the winding mode of the long cable can cause the buckling of the cable box during installation, so that the sealing effect is poor; 2. in the transferring process of the assembly, the cable drives the connector to swing and knock the back plate under the inertia effect, so that the assembly is poor in hidden crack; 3. when the assembly is turned over and carried on an automatic assembly line, the cable falls under the action of gravity and is scrapped due to hanging and rubbing of the assembly line; 4. the component needs to be matched with a test tool when being tested, and the conversion of the test surface of the connector is realized through the test tool, so that the component can be connected with a test probe on a test instrument, and further, the power-on test is realized.

Therefore, a novel photovoltaic junction box is provided to solve the problems in the prior art, and has great significance for application and popularization.

SUMMERY OF THE UTILITY MODEL

In view of this, the present application aims to provide a novel photovoltaic junction box to solve the problems existing in the assembling, transferring, testing and using processes of the existing junction box.

In order to achieve the above object, the present application provides the following technical solutions.

A novel photovoltaic junction box comprises a box body and a connector, wherein the box body is directly connected with the connector, components in the box body are connected with components in the connector through metal wires, and the metal wires are arranged in the box body;

the opening direction of the connector is vertically upward, namely, the opening direction is perpendicular to the surfaces of all the components in the box body and the surface of the photovoltaic component.

Preferably, a fixing groove is formed in one end, connected with the connector, of the box body, and clamping strips are arranged on the side edges of the two sides of the fixing groove; the connector is provided with a clamping groove corresponding to the clamping strip, and the box body is fixedly connected with the connector through the matching of the clamping strip and the clamping groove.

Preferably, the connector is provided with a through hole at one end connected with the box body, so that the metal wire can conveniently pass through the through hole to realize the communication effect.

Preferably, a fixed block is arranged at one end of the box body connected with the connector, and internal threads are arranged in the fixed block; a connecting rod is arranged at one end of the connector, which is connected with the box body, and external threads corresponding to the internal threads are arranged on the outer side of the connecting rod; the connecting rod is connected with the fixed block through threads, so that the connector is fixedly connected with the box body.

Preferably, the connecting rod is of a hollow structure, so that a metal wire can conveniently penetrate through the connecting rod to realize a connecting effect; the connecting rod is located the connector end and is provided with the limiting plate, prevents connecting rod and fixed block transitional coupling.

Preferably, a fixed seat is arranged at one end of the box body, which is connected with the connector, and an internal thread is arranged in the fixed seat; and an external thread corresponding to the internal thread is arranged below the connector, so that the connector is fixed on the fixed seat in a threaded connection manner.

Preferably, a metal pad is arranged in the box body, and a diode and soldering tin are arranged on the metal pad; and an electrode plate is arranged in the connector, and the diode is connected with the electrode plate through a metal wire.

Preferably, a through groove is formed in the lower portion of the box body, and a lead on the photovoltaic module can conveniently penetrate through the through groove.

Preferably, a box cover is arranged above the box body, the box body is of an integrated structure, and the box cover is detachably fixed on the box body.

Preferably, the connector is provided with a notch, and the notch is used for realizing the fixing function when the external connecting wire is plugged.

The utility model discloses the beneficial technological effect who obtains:

1) The utility model solves the problems existing in the prior junction box during the processes of assembly, transportation, test and use; the utility model realizes the design of the cable-free junction box by directly combining the connector and the box body, and the interference of cables is not needed to be considered when the installation and the package are carried out; the opening direction of the connector is vertically upward, namely, the opening direction is perpendicular to the surfaces of all components in the box body, when EL/IV test is carried out, a test probe on a test instrument can be directly butted with the connector, the conversion of a test tool is omitted, and the installation, purchase and maintenance and labor cost of the test tool are omitted.

2) When the utility model is used for production, the coiling and installation of cables are saved; when the factory is installed, interference caused by cables and terminals does not need to be considered, and meanwhile, poor hidden cracking of components caused by knocking of the back plate by the cables is improved.

The foregoing description is only an overview of the technical solutions of the present application, so that the technical means of the present application can be clearly understood, and the present application can be implemented according to the content of the description, and the foregoing and other objects, features, and advantages of the present application can be more clearly understood.

The above and other objects, advantages and features of the present application will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic view of a prior art junction box;

fig. 2 is a schematic structural view of the novel photovoltaic junction box in the first embodiment of the disclosure;

FIG. 3 is a schematic structural diagram of a cassette according to a first embodiment of the present disclosure;

FIG. 4 is a schematic view of the structure of a connector according to a first embodiment of the present disclosure;

fig. 5 is a schematic structural view of a novel photovoltaic junction box in a second embodiment of the disclosure;

fig. 6 is a schematic structural view of a novel photovoltaic junction box according to a third embodiment of the present disclosure;

FIG. 7 is a schematic diagram of a test probe interfacing with a connector for EL/IV testing in one embodiment of the present disclosure.

In the above drawings: 100. a box body; 110. fixing grooves; 111. clamping the strip; 120. a fixed block; 130. a fixed seat; 141. a metal pad; 142. a diode; 143. soldering tin; 144. a metal wire; 145. a through groove; 200. a connector; 210. a card slot; 220. a through hole; 230. a connecting rod; 240. an electrode sheet; 250. a notch; 300. and (6) testing the probe.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. In the following description, specific details such as specific configurations and components are provided only to help the embodiments of the present application be fully understood. Accordingly, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, descriptions of well-known functions and constructions are omitted in the embodiments for clarity and conciseness.

It should be appreciated that reference throughout this specification to "one embodiment" or "the embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrase "one embodiment" or "the present embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Further, the present application may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: the three cases of A alone, B alone and A and B together exist, and the term "/and" in this document describes another associated object relationship, which means that two relationships may exist, for example, A/and B, which may mean: a alone, and both a and B alone, and further, the character "/" in this document generally means that the former and latter associated objects are in an "or" relationship.

The term "at least one" herein is merely an association relationship describing an associated object, and means that there may be three relationships, for example, at least one of a and B, may mean: a exists alone, A and B exist simultaneously, and B exists alone.

It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion.

As shown in fig. 2, the novel photovoltaic junction box comprises a box body 100 and a connector 200, wherein the box body 100 and the connector 200 are directly connected, so that a junction box design without cables is realized, and the interference of the cables is not required to be considered when the junction box is installed and packaged; the components in the box 100 are connected with the components in the connector 200 through metal wires 144, and the metal wires 144 are arranged in the box 100; the opening direction of the connector 200 is vertically upward, namely, the opening direction is perpendicular to the surfaces of all components in the box body 100, when EL/IV test is carried out, the test probe 300 on the test instrument can be directly butted with the connector 200, so that the conversion of a test tool is omitted, and the installation, purchase, maintenance and labor cost of the test tool are omitted.

A metal pad 141 is arranged in the box body 100, a diode 142 and soldering tin 143 are arranged on the metal pad 141, and the purpose of the soldering tin 143 is to enable an outgoing line on the photovoltaic module to be welded with the metal pad 141 on the line box in a good mode; an electrode plate 240 is arranged in the connector 200, and the diode 142 is connected with the electrode plate 240 through a metal wire 144.

A through groove 145 is formed below the box body 100, and the through groove 145 facilitates the lead wire on the photovoltaic module to pass through. A box cover is arranged above the box body 100 (not marked in the drawing), the box body 100 is of an integral structure, and the box cover is detachably fixed on the box body 100. The connector 200 is provided with a notch 250, and the notch 250 is used for realizing the fixing function when an external connecting wire is plugged.

Further, the connector 200 is detachably connected to the box 100, so that the box 100 and the connector 200 can be easily maintained.

In one embodiment, as shown in fig. 3, the box body 100 is provided with a fixing groove 110 at one end connected to the connector 200, and the sides of both sides of the fixing groove 110 are provided with a clip strip 111; as shown in fig. 4, the connector 200 is provided with a card slot 210 corresponding to the card strip 111, and the box 100 and the connector 200 are fixedly connected by the cooperation of the card strip 111 and the card slot 210.

Further, both sides of the clamping strip 111 are designed to be chamfer or fillet structures, and both sides of the clamping groove 210 are also correspondingly designed to be chamfer or fillet structures, so that the connector 200 and the box body 100 can be conveniently clamped and fixed.

Further, a through hole 220 is formed at one end of the connector 200 connected to the box 100, so that the metal wire 144 can pass through the through hole for communication.

In one embodiment, as shown in fig. 5, the box 100 is provided with a fixing block 120 at one end connected to the connector 200, and the fixing block 120 is provided with internal threads; a connecting rod 230 is arranged at one end of the connector 200 connected with the box body 100, and external threads corresponding to the internal threads are arranged on the outer side of the connecting rod 230; the connector 200 is fixedly coupled to the case 100 by the screw coupling of the coupling rod 230 to the fixing block 120.

Further, the connecting rod 230 has a hollow structure, so that the metal wire 144 can pass through the hollow structure to achieve the connecting function; the connecting rod 230 is provided with a limiting plate at the end of the connector 200 to prevent the connecting rod 230 and the fixing block 120 from being excessively connected.

In one embodiment, as shown in fig. 6, the box 100 is provided with a fixing base 130 at one end connected to the connector 200, and an internal thread is provided in the fixing base 130; an external thread corresponding to the internal thread is disposed below the connector 200, so that the connector 200 is fixed to the fixing base 130 by a threaded connection.

As shown in fig. 7, when performing the EL/IV test, the test probe 300 on the test instrument can be directly connected to the electrode plate 240 in the connector 200 for testing, so as to save the test tool conversion operation area, save the installation, purchase and maintenance, and labor cost of the test tool, and greatly reduce the test cost.

The above description is only a preferred embodiment of the present invention, and it is not intended to limit the scope of the present invention, and various modifications and changes may be made by those skilled in the art. All changes, modifications, substitutions, integrations and parameter changes to the embodiments, which are within the spirit and principle of the invention, can be made by conventional substitution or can realize the same function without departing from the principle and spirit of the invention, and all fall into the protection scope of the invention.

Claims

1. The novel photovoltaic junction box is characterized by comprising a box body (100) and a connector (200), wherein the box body (100) is directly connected with the connector (200), and components in the box body (100) are connected with components in the connector (200) through metal wires (144);

the opening direction of the connector (200) is vertically upward, namely, vertical to the surfaces of the components in the box body (100).

2. The novel photovoltaic junction box of claim 1, wherein a fixing groove (110) is formed at one end of the box body (100) connected with the connector (200), and clamping strips (111) are arranged on the side edges of two sides of the fixing groove (110); the connector (200) is provided with a clamping groove (210) corresponding to the clamping strip (111), and the box body (100) is fixedly connected with the connector (200) through the matching of the clamping strip (111) and the clamping groove (210).

3. The novel photovoltaic junction box of claim 2, wherein the connector (200) is provided with a through hole (220) at the end connected to the box body (100) for the metal wire (144) to pass through.

4. The novel photovoltaic junction box according to claim 1, characterized in that a fixing block (120) is provided at one end of the box body (100) connected to the connector (200), and an internal thread is provided in the fixing block (120); a connecting rod (230) is arranged at one end, connected with the box body (100), of the connector (200), and external threads corresponding to the internal threads are arranged on the outer side of the connecting rod (230); the connecting rod (230) is connected with the thread of the fixing block (120) so as to fixedly connect the connector (200) and the box body (100).

5. The novel photovoltaic junction box of claim 4, wherein the connecting rod (230) is a hollow structure for facilitating the metal wire (144) to pass through for connection; the connecting rod (230) is provided with a limiting plate at the end of the connector (200) to prevent the connecting rod (230) and the fixing block (120) from being in transitional connection.

6. The novel photovoltaic junction box according to claim 1, characterized in that the box body (100) is provided with a fixing seat (130) at one end connected with the connector (200), and an internal thread is arranged in the fixing seat (130); and an external thread corresponding to the internal thread is arranged below the connector (200) so that the connector (200) is fixed on the fixed seat (130) in a threaded connection mode.

7. The novel photovoltaic junction box according to claim 1, characterized in that a metal pad (141) is provided in the box body (100), and a diode (142) and a solder (143) are provided on the metal pad (141); an electrode plate (240) is arranged in the connector (200), and the diode (142) is connected with the electrode plate (240) through a metal wire (144).

8. The novel photovoltaic junction box of claim 7, wherein a through groove (145) is formed below the box body (100), and the through groove (145) facilitates the lead wire on the photovoltaic module to pass through.

9. The novel photovoltaic junction box of claim 1, wherein a box cover is arranged above the box body (100), the box body (100) is of an integral structure, and the box cover is detachably fixed on the box body (100).

10. The novel photovoltaic junction box of claim 1, wherein a notch (250) is formed in the connector (200), and the notch (250) is used for fixing an external connecting wire during plugging.