CN224191905U - Perovskite subassembly terminal box - Google Patents

Abstract

Perovskite subassembly terminal box relates to photovoltaic technology field. The metal conductive terminal quick mounting and positioning device comprises a supporting seat, metal conductive terminals and a diode, wherein the supporting seat, the metal conductive terminals and the diode are arranged in a box body, the metal conductive terminals are quickly mounted and positioned through structural arrangement of the supporting seat, the diode is electrically connected with a pair of metal conductive terminals in advance, the stability of the electric connection of the diode and a cable is improved through multi-boss structural design of the metal conductive terminals, the long-term use stability of the junction box is further improved, and the failure probability is reduced.

Description

Perovskite subassembly terminal box

Technical Field

The utility model relates to the technical field of photovoltaics, in particular to structural improvement of a junction box of a perovskite assembly.

Background

Perovskite solar cells are a new type of solar cell that is mainly composed of perovskite crystalline materials and are therefore also referred to as perovskite components, whereas conventional monocrystalline silicon solar cells are made of monocrystalline silicon wafers. Perovskite solar cells and single crystal silicon solar cells also have some differences in performance. First, perovskite solar cells have high conversion efficiencies, up to 20% or more, whereas monocrystalline silicon solar cells generally have conversion efficiencies of about 15%. Secondly, perovskite solar cells perform better in low light conditions, whereas single crystal silicon solar cells perform generally in this respect.

The perovskite solar module is mainly used for photovoltaic power generation and can be applied to wearable products such as a centralized photovoltaic power station, a power generation glass curtain wall, indoor photovoltaic, a solar car, a portable electronic product or a photovoltaic backpack. The method can be prepared at low temperature in a whole process, raw materials are easy to obtain, the investment cost of a production line and the manufacturing cost of components are lower than those of crystalline silicon photovoltaic products, and the method has lower electricity-making cost. The junction box is used as an indispensable part of the photovoltaic module, and plays a great role in the photovoltaic industry.

The junction box for the crystalline silicon solar module comprises a box body, a metal conductor, a diode, a box cover and other parts, and is inconvenient to produce and assemble due to the design defects of the parts in the box body, so that the production efficiency of the junction box is greatly affected, and meanwhile, the electrical connection part is invalid after long-term working. Therefore, how to improve the reliability of the electrical connection part and the assembly efficiency without increasing the size of the junction box is a technical problem to be solved in the scheme.

Disclosure of utility model

The utility model aims at the problems and provides the perovskite component junction box which can improve the reliability of an electric connection part and the assembly efficiency under the condition of not increasing the size of the junction box.

The technical scheme of the utility model is as follows:

A perovskite assembly junction box comprising:

The side part of the box body is provided with a cable threading hole;

The support seat is fixedly arranged in the box body and is provided with a diode mounting position and a pair of terminal mounting positions;

The metal conductive terminals are provided with a pair of metal conductive terminals which are respectively arranged on the corresponding terminal installation positions;

The diode is positioned at the diode mounting position, pins at two ends are respectively and electrically connected with the bottom surfaces of the corresponding metal conductive terminals, and the metal conductive terminals are provided with first bosses which are used for being attached to the diode.

Specifically, the bottom of the cable threading hole is hollowed out, and the cable is clamped and fixed in the cable threading hole through a fixedly connected cable pressing block.

Specifically, a positioning column is arranged on the terminal installation position;

And the metal conductive terminal is provided with a positioning hole matched with the positioning column.

Specifically, the terminal installation position is provided with a plurality of locating plates for limiting the metal conductive terminals.

Specifically, the locating plate top is equipped with the chamfer.

Specifically, the front end of the metal conductive terminal is provided with a second boss for being electrically connected with the cable.

Specifically, the inner side wall of the box body is provided with a glue overflow bin with an opening at the top;

The top surface of the glue overflow bin is lower than the top surface of the box body.

Specifically, the top surface of the box body is provided with a box cover which is fixedly connected.

Specifically, the cable through wires hole is equipped with a pair of, is anodal through wires hole and negative pole through wires hole respectively.

Specifically, the cable is electrically connected with the metal conductive terminal through the cable threading hole.

The utility model comprises a supporting seat, a metal conductive terminal and a diode which are positioned in a box body, wherein the supporting seat is used for realizing rapid installation and positioning of the metal conductive terminal, the diode is electrically connected with a pair of metal conductive terminals in advance, and the stability of the electric connection of the diode and a cable is improved through the design of a multi-boss structure of the metal conductive terminal, so that the long-term use stability of the junction box is further improved, and the failure probability is reduced.

Drawings

Fig. 1 is a schematic view of the internal structure of the case;

FIG. 2 is a schematic diagram of a connection state structure of a metal conductive terminal and a diode;

Fig. 3 is a schematic perspective view of a metal conductive terminal;

fig. 4 is a schematic perspective view of a connection state of a metal conductive terminal and a cable;

FIG. 5 is a perspective view showing the connection state of the case body and the case cover;

In the figure, 100 is a box body, 110 is a cable threading hole, 120 is a wire pressing block,

200 Is a supporting seat, 210 is a positioning column, 220 is a positioning plate,

300 Is a metal conductive terminal, 310 is a locating hole, 320 is a first boss, 330 is a second boss,

400 Is a diode and is shown in the schematic form,

500 Is a cable conductor that is electrically connected to the cable,

600 Is a glue overflow bin, and the glue overflow bin,

700 Is a box cover.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The utility model is described below with reference to fig. 1-5;

A perovskite assembly junction box comprising:

the box body 100 is provided with a cable threading hole 110 at the side part;

The supporting seat 200 is fixedly arranged in the box body 100 and is provided with a diode mounting position and a pair of terminal mounting positions;

The support seat 200 is provided with a suspension frame extending towards the tail part of the box body 100 (far from one side of the cable threading hole 110) and matched with the tail end of the metal conductive terminal 300, so that the installation stability of the metal conductive terminal 300 is improved;

The metal conductive terminals 300 are provided with a pair and are respectively arranged on corresponding terminal installation positions, and each metal terminal is correspondingly connected with a bus strap led out of the perovskite photovoltaic module, and the metal conductive terminals 300 and the box body 100 can be fixed in a cold riveting or hot riveting mode;

The terminal installation position is provided with a positioning column 210;

The metal conductive terminal 300 is provided with a positioning hole 310 adapted to the positioning post 210.

The terminal mounting position is provided with a plurality of positioning plates 220 for limiting the metal conductive terminals 300.

In this case, 2 positioning plates 220 are provided, and one of the left and right sides of the metal conductive terminal 300 respectively, so that the metal conductive terminal 300 is limited between the two positioning plates 220.

The top of the positioning plate 220 is provided with a chamfer so that the metal conductive terminal 300 can be clamped into the terminal installation position efficiently.

The diode 400 plays a role of bypass protection, is positioned at the diode mounting position, pins at two ends are respectively and electrically connected with the bottom surfaces of the corresponding metal conductive terminals 300, and the metal conductive terminals 300 are provided with first bosses 320 which are used for being attached to the diode 400, so that the reliability and the stability of pin connection are improved. In this case, the metal conductive terminal 300 and the diode 400 are connected by resistance welding or soldering.

The diode 400 is arranged in the middle of the box body, and the pins of the diode 400 are arranged below the metal conductive terminals 300, so that the height of the box body can be reduced, and the miniaturization development trend is met.

The bottom of the cable threading hole 110 is hollowed out, and the cable is clamped in the cable threading hole 110 through a detachable and fixedly connected cable pressing block 120. The cable and the metal conductive terminal 300 are connected by resistance welding or riveting. The wire pressing block 120 is fixedly connected with the box body 100 by adopting ultrasonic welding, so that the cable arranged in the middle is pressed and fixed.

The front end of the metal conductive terminal 300 is provided with a second boss 330 for electrically connecting with the cable 500.

The first boss 320 and the diode pin connection surface are in a plane, and the second boss 330 and the cable connection surface are in a plane mode.

The inner side wall of the box body 100 is provided with a glue overflow bin 600 with an opening at the top;

The top surface of the flash bin 600 is lower than the top surface of the box body 100, and when excessive silica gel is poured, the excessive silica gel can flow into the flash bin 600, and the plane of the silica gel is in a controllable range, so that the assembly of the upper box cover 700 is not affected.

The top surface of the case body 100 is provided with a case cover 700 which is detachably and fixedly connected.

The cable threading holes 110 are provided with a pair of positive and negative threading holes, respectively.

The cable is electrically connected to the metal conductive terminal 300 through the cable threading hole 110.

For the purposes of this disclosure, the following points are also described:

(1) The drawings of the embodiments disclosed in the present application relate only to the structures related to the embodiments disclosed in the present application, and other structures can refer to common designs;

(2) The embodiments disclosed herein and features of the embodiments may be combined with each other to arrive at new embodiments without conflict;

The above is only a specific embodiment disclosed in the present application, but the protection scope of the present disclosure is not limited thereto, and the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. Perovskite subassembly terminal box, its characterized in that includes:

The box body (100) is provided with a cable threading hole (110) at the side part;

The supporting seat (200) is fixedly arranged in the box body (100) and is provided with a diode mounting position and a pair of terminal mounting positions;

A pair of metal conductive terminals (300) provided on the respective terminal mounting positions;

The diode (400) is positioned at the diode mounting position, pins at two ends are respectively and electrically connected with the bottom surfaces of the corresponding metal conductive terminals (300), and a first boss (320) is arranged on each metal conductive terminal (300) and is used for being attached to the diode (400).

2. The perovskite assembly junction box according to claim 1, characterized in that the bottom of the cable threading hole (110) is hollowed out, and the cable is clamped in the cable threading hole (110) through a fixedly connected cable pressing block (120).

3. The perovskite assembly junction box as claimed in claim 1, wherein a positioning post (210) is provided on the terminal mounting location;

And the metal conductive terminal (300) is provided with a positioning hole (310) matched with the positioning column (210).

4. A perovskite assembly junction box as claimed in claim 1 or 3, characterized in that the terminal mounting location is provided with a number of positioning plates (220) for the metal conductive terminal (300) to be restrained.

5. The perovskite assembly junction box as claimed in claim 4, wherein the locating plate (220) is provided with a chamfer on top.

6. The perovskite assembly junction box according to claim 1, characterized in that the front end of the metal conductive terminal (300) is provided with a second boss (330) for electrical connection with a cable line (500).

7. The perovskite assembly junction box according to claim 1, characterized in that the inside wall of the box body (100) is provided with a glue overflow bin (600) with an opening at the top;

The top surface of the glue overflow bin (600) is lower than the top surface of the box body (100).

8. The perovskite assembly junction box according to claim 1, characterized in that the top surface of the box body (100) is provided with a fixedly connected box cover (700).

9. The perovskite assembly junction box according to claim 1, characterized in that the cable threading holes (110) are provided with a pair of positive and negative threading holes, respectively.

10. The perovskite assembly junction box according to claim 9, characterized in that the cable is electrically connected with a metal conductive terminal (300) through the cable threading hole (110).