CN218868196U

CN218868196U - Long string type photovoltaic low temperature pouring chip line box

Info

Publication number: CN218868196U
Application number: CN202223411687.7U
Authority: CN
Inventors: 张道远; 朱第保; 阮岩伟; 龙占海; 施杰; 张真玮
Original assignee: Jiangsu Tonglin Electric Co ltd
Current assignee: Jiangsu Tonglin Electric Co ltd
Priority date: 2022-12-17
Filing date: 2022-12-17
Publication date: 2023-04-14
Anticipated expiration: 2032-12-17

Abstract

Long string type photovoltaic low temperature pouring chip line box relates to the photovoltaic module terminal box. The method comprises the following steps: the wire box body is in a long strip shape; the diode module is fixedly arranged in the wire box body through the base; the base is provided with a plurality of radiating holes corresponding to the chips in the diode module. Specifically, the base can be dismantled fixed the setting and in the box body, be equipped with the module of diode module adaptation is placed the position. Specifically, the heat dissipation holes are provided with heat dissipation fins which are fixedly arranged. Specifically, the heat sink comprises an aluminum sheet or a ceramic sheet. The utility model discloses a base with the fin has further promoted the heat dispersion of line box to make the line box can realize bigger rated current.

Description

Long string type photovoltaic low temperature pouring chip line box

Technical Field

The utility model relates to a photovoltaic module terminal box especially relates to long string type photovoltaic low temperature pouring chip line box.

Background

With the rapid development of photovoltaic power generation, the demand for photovoltaic modules is increasing, and how to improve the production efficiency is of great importance. Two pins of a diode of the traditional junction box are connected with adjacent copper sheets through a welding mode to form a loop, and the mode has the following problems:

a. the diode is welded on the copper sheet, the production process is complex, the automation degree is low, and the desoldering is easily generated by tin soldering and resistance welding to cause the product failure.

b. The diode body has single heat emission path and poor heat dissipation capability, and the product realizes larger rated current and has higher cost.

c. The diode body is large in size, a plurality of diodes are concentrated in one box body, and the long-string-type box body is high in size and material cost.

SUMMERY OF THE UTILITY MODEL

The utility model provides a to above problem, provide a long string type photovoltaic low temperature pouring chip line box of simple structure, simple and convenient, the high heat dissipation of installation and use.

The technical scheme of the utility model is that: long string type photovoltaic low temperature pouring chip line box includes:

the wire box body is in a long strip shape; and

the diode module is fixedly arranged in the wire box body through the base; and a plurality of radiating holes corresponding to the chips in the diode module are formed in the base.

Specifically, the base can be dismantled fixed the setting and in the box body, be equipped with the module of diode module adaptation is placed the position.

Specifically, the radiating holes are provided with fixedly arranged radiating fins.

Specifically, the heat sink comprises an aluminum sheet or a ceramic sheet.

Specifically, the diode module comprises a first copper sheet, a second copper sheet, a third copper sheet and a fourth copper sheet which are sequentially arranged on the base at intervals;

one end of the second copper sheet is provided with a first chip which is fixedly connected with the second copper sheet, and the first chip is connected with one end of the first copper sheet through a first jumper;

one end of the third copper sheet is provided with a second chip, and the second chip is connected with the other end of the second copper sheet through a second jumper;

and a third chip is arranged at one end of the fourth copper sheet, and the third chip is connected with the other end of the third chip through a third jumper.

Specifically, the wire box body is provided with a first wire outlet hole and a second wire outlet hole which are matched with the diode module.

Specifically, a second bending part extending towards the base direction is arranged at the end part of the second copper sheet; the first chip is fixedly arranged on the bending part;

the end part of the first copper sheet is provided with a first bending part matched with the second bending part;

the base is provided with an accommodating groove matched with the first bending part and the second bending part.

Specifically, the accommodating groove is filled with epoxy resin.

Specifically, the bottom fretwork of box for wire box body, the top is equipped with the lid that can dismantle fixed setting.

Specifically, the diode module is connected with the base through the positioning column.

The utility model relates to a single components of a whole that can function independently terminal box contains the line box body, takes the base and the diode module of fin. Three chips are connected in series into a module in the diode module, and the module is directly installed on the base and is connected with the wire box body after being formed, so that the manufacturing efficiency is improved, and the size of a product is effectively reduced. Through the base that has the fin, the heat dispersion of line box has further been promoted to make line box can realize bigger rated current.

Drawings

Figure 1 is a schematic perspective view of the present invention,

FIG. 2 is a schematic perspective view of the concealed upper cover of the case body,

FIG. 3 is a perspective view showing the connection state of the diode module and the wire box body,

figure 4 is a schematic perspective view of a diode module,

FIG. 5 is a perspective view of the heat sink in a connected state;

in the figure, 100 is a box body, 110 is a cover body,

200 is a base, 210 is a heat sink, 220 is a positioning post,

300 is a diode module which is a diode module,

310 is a first copper sheet, 311 is a first bending portion, 320 is a second copper sheet, 321 is a second bending portion, 330 is a third copper sheet, 340 is a fourth copper sheet, 350 is a first chip, 360 is a second chip, 370 is a third chip,

400 is an epoxy resin.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "vertical", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element 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 invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model is shown in figures 1-5; long string type photovoltaic low temperature pouring chip line box includes:

a wire case 100, the wire case 100 being in a long shape, for improving heat dissipation of the layout of the diode module 300; and

the diode module 300, the diode module 300 is fixedly arranged in the line box body 100 through the base 200; the base 200 is provided with a plurality of heat dissipation holes corresponding to the chips in the diode module 300.

Further, the base 200 is detachably and fixedly disposed in the wire box 100, and a module placing position adapted to the diode module 300 is disposed.

Further preferably, the heat dissipation holes are provided with heat dissipation fins 210 which are fixedly arranged.

The heat sink 210 includes an aluminum sheet or a ceramic sheet, thereby enhancing the heat dissipation capability of the wire cassette.

Further, the diode module 300 comprises a first copper sheet 310, a second copper sheet 320, a third copper sheet 330 and a fourth copper sheet 340 which are sequentially arranged on the base 200 at intervals;

one end of the second copper sheet 320 is provided with a first chip 350 which is fixedly connected, and the first chip 350 is connected with one end of the first copper sheet 310 through a first jumper;

one end of the third copper sheet 330 is provided with a second chip 360, and the second chip 360 is connected with the other end of the second copper sheet 320 through a second jumper;

one end of the fourth copper sheet 340 is provided with a third chip 370, and the third chip 370 is connected to the other end of the third chip 370 through a third jumper.

Further, the junction box body 100 is provided with a first outlet hole and a second outlet hole adapted to the diode module 300.

Preferably, the end of the second copper sheet 320 is provided with a second bending portion 321 extending towards the base 200; the first chip 350 is fixedly arranged on the bending part;

the end part of the first copper sheet 310 is provided with a first bending part 311 matched with the second bending part 321;

the base 200 is provided with an accommodating groove adapted to the first bending portion 311 and the second bending portion 321.

The accommodating groove is filled with epoxy resin 400. The first chip 350 is located in the accommodating groove and filled with the epoxy resin 400, so that the heat dissipation performance of the chip during operation is improved, the heat is rapidly dissipated through the corresponding heat dissipation sheet 210 on the base 200, and the reliability and stability of the operation of the device are improved.

In the scheme, 4 copper sheets are used, adjacent copper sheets are connected by adopting chip welding and jumper sheets to form a chip diode, the chip diode is arranged in the base 200, and the diode is packaged in a low-voltage packaging mode to form the diode module 300. The diode module 300 is arranged in the box body, the left side and the right side of the module are connected with the cable, resistance welding is adopted, the welding reliability is higher, and finally the cable is sealed by the pressing block.

Further optimize, the bottom of the wire box body 100 is hollowed out, and the top of the wire box body is provided with a cover body 110 which can be detachably and fixedly arranged.

The diode module 300 is connected to the base 200 through the positioning posts 220, that is, the base 200 is provided with a plurality of positioning posts 220, the diode module 300 is provided with a plurality of positioning holes adapted to the positioning posts 220, and finally the diode module 300 is fixed to the base 200 through the connecting member.

The disclosure of the present application also includes the following points:

(1) The drawings of the embodiments disclosed herein only relate to the structures related to the embodiments disclosed herein, and other structures can refer to general designs;

(2) In case of conflict, the embodiments and features of the embodiments disclosed in this application can be combined with each other to arrive at new embodiments;

the above embodiments are only embodiments disclosed in the present disclosure, but the scope of the disclosure is not limited thereto, and the scope of the disclosure should be determined by the scope of the claims.

Claims

1. Long string type photovoltaic low temperature pouring chip line box, its characterized in that includes:

the wire box body is in a long strip shape; and

2. The long string type photovoltaic low temperature cast chip line box of claim 1, wherein the base is detachably and fixedly arranged in the line box body, and a module placing position adapted to the diode module is arranged.

3. The long string type photovoltaic low-temperature cast chip junction box according to claim 1 or 2, wherein the heat dissipation holes are provided with fixedly arranged heat dissipation fins.

4. The long string photovoltaic low temperature cast chip wire box of claim 3, wherein the heat sink comprises an aluminum sheet or a ceramic sheet.

5. The long string type photovoltaic low-temperature cast chip wire box according to claim 1, wherein the diode module comprises a first copper sheet, a second copper sheet, a third copper sheet and a fourth copper sheet which are sequentially arranged on the base at intervals;

6. The long string photovoltaic low-temperature cast chip wire box according to claim 1, wherein the box body is provided with a first wire outlet hole and a second wire outlet hole which are matched with the diode module.

7. The long string type photovoltaic low-temperature cast chip wire box according to claim 5, wherein the end of the second copper sheet is provided with a second bending part extending towards the base; the first chip is fixedly arranged on the bending part;

8. The long string photovoltaic low temperature cast chip wire cassette of claim 7, wherein the receiving groove is filled with epoxy.

9. The long string type photovoltaic low-temperature pouring chip line box of claim 1, wherein the bottom of the line box body is hollowed out, and the top of the line box body is provided with a cover body which is detachably and fixedly arranged.

10. The long string photovoltaic low-temperature cast chip line box according to claim 1, wherein the diode module is connected to the base through a positioning post.