CN219536032U - Composite press row for EL test - Google Patents

Abstract

The utility model discloses a composite press bar for an EL test, which belongs to the field of photovoltaic panel processing equipment, and comprises an electric push rod, wherein an L-shaped connecting plate is fixedly connected to the telescopic end of the electric push rod, a press belt is fixedly connected to the lower end of the L-shaped connecting plate, the press belt comprises a strip-shaped shell, the lower end of the strip-shaped shell is fixedly connected with a bus bar and a rubber strip, and a conductive bar matched with the bus bar and the rubber strip is arranged in the strip-shaped shell; the outer side of the pressing belt is provided with a pressing row, a pair of ball screws are connected between the pressing belt and the pressing row, the pressing row comprises a protective shell, a plurality of uniformly distributed power connection nodes are arranged in the protective shell, and pressing needles are fixedly connected to the power connection nodes; the conductive pipeline is connected between the pressing belt and the pressing row, so that when the butt welding belt is pressed, the multi-point pressing and large-area pressing work modes can be rapidly switched according to the requirement, the pressing pressure is conveniently adjusted, the adjusting time is shortened, and the production efficiency is improved.

Description

Composite press row for EL test

Technical Field

The utility model relates to the field of photovoltaic panel processing equipment, in particular to a composite press bar for EL test.

Background

In the solar cell production process, after the IV test is performed on the solar cell module, the EL test is performed. An EL (ElectroLuminescence) device is a defect detection device for a solar cell or a battery assembly. The method utilizes the electroluminescence principle of crystalline silicon, adopts a high-resolution infrared camera to shoot near infrared images of the component, and acquires and judges whether defects exist. Is commonly used for detecting internal defects, hidden cracks, fragments, virtual joints, broken grids and abnormal single-chip batteries with different conversion efficiencies of solar cell modules

At present, the pressing needle on the EL test equipment is a single pressing needle, the pressing area is small, the welding strip is not pressed under normal pressure during the test, the welding strip with different specifications is pressed, the adjustment is needed, the time is wasted, if the adjustment is improper, the condition that the brightness of an EL test image is uneven easily occurs, and the quality of a battery piece cannot be accurately judged.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the utility model aims to provide a composite press bar for EL test, which is characterized in that the press bar and the press belt which can be quickly adjusted and switched are used for pressing a welding belt, so that when the press operation of the welding belt is realized, the multi-point press and the large-area press discharging working mode can be quickly switched according to the needs, the press pressure is conveniently adjusted, the adjustment time is reduced, and the production efficiency is improved.

2. Technical proposal

In order to solve the problems, the utility model adopts the following technical scheme.

The composite press bar for the EL test comprises an electric push rod, wherein an L-shaped connecting plate is fixedly connected to the telescopic end of the electric push rod, a press belt is fixedly connected to the lower end of the L-shaped connecting plate, the press belt comprises a strip-shaped shell, a bus bar and a rubber bar are fixedly connected to the lower end of the strip-shaped shell, and a conductive bar matched with the bus bar and the rubber bar is arranged in the strip-shaped shell;

the outer side of the pressing belt is provided with a pressing row, a pair of ball screws are connected between the pressing belt and the pressing row, the pressing row comprises a protective shell, a plurality of uniformly distributed power connection nodes are arranged in the protective shell, and pressing needles are fixedly connected to the power connection nodes;

the pressure area is connected with the conductive pipeline between the pressure row, and the conductive pipeline includes the protection tube of being connected with L type connecting plate, wears to be equipped with first cable and second cable in the protection tube, and first cable is connected with the conductive row, and the second cable is connected with a plurality of electric nodes.

When can realize the butt welding area pressing operation, can fast switch over multiple spot presses and large tracts of land row presses operating mode as required, conveniently adjust the pressure of pressing, reduce adjustment time, improve production efficiency.

Further, the second cable is including wearing to establish a plurality of cables in the protection tube, and a plurality of cables are connected with a plurality of electric nodes respectively, and first cable runs through the bar shell and is connected with the electric conduction row telecommunications, installs on the bar shell with first cable assorted threading cover, presses the area and presses the row power supply through first cable and second cable, and first cable and second cable are unified to be connected with external distribution equipment, make things convenient for voltage regulation.

Further, the conducting bar is formed by splicing a plurality of electric connection nodes, and the plurality of electric connection nodes are connected in series.

Further, the protective housing slides relatively with the bar shell, and the outer wall of bar shell and protective housing is all polished smooth.

Further, the rubber strip is matched to the size of the bus bar.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages that:

(1) When this scheme can realize the butt welding area pressing operation, can fast switch over multiple spot presses and large tracts of land row presses mode as required, conveniently adjusts the pressure of pressing, reduces adjustment time, improves production efficiency.

(2) The second cable is including wearing to establish a plurality of cables in the protection tube, and a plurality of cables are connected with a plurality of electric nodes respectively, and first cable runs through the bar shell and is connected with the busbar telecommunications, installs on the bar shell with first cable assorted threading cover, presses area and presses the row power supply through first cable and second cable, and first cable and second cable are unified to be connected with external distribution equipment, make things convenient for voltage regulation.

Drawings

FIG. 1 is a perspective view of a dowel of the present utility model;

FIG. 2 is an exploded view of the dowel of the present utility model;

FIG. 3 is a cross-sectional view of the present utility model;

fig. 4 is a schematic diagram of the structure at a in fig. 3.

The reference numerals in the figures illustrate:

the cable comprises an electric push rod 1, a connecting plate 2L, a sealing cover 201, a sealing cover 202, a 3-press belt, a strip-shaped shell 301, a bus bar 302, a rubber strip 303, a conductive bar 304, a positioning ring 4, a protective shell 401, a power connection node 402, a pressing needle 403, a conductive pipeline 5, a protective tube 501, a first cable 502, a second cable 503 and a ball screw 6.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "top/bottom", etc. are directions or positional relationships based on those 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 apparatus 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. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "sleeved," "connected," etc. should be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be 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.

Example 1:

referring to fig. 1-4, a composite press bar for EL test includes an electric push rod 1, an L-shaped connecting plate 2 is fixedly connected to a telescopic end of the electric push rod 1, a press belt 3 is fixedly connected to a lower end of the L-shaped connecting plate 2, the press belt 3 includes a bar-shaped shell 301, a bus bar 302 and a rubber bar 303 are fixedly connected to a lower end of the bar-shaped shell 301, the rubber bar 303 is matched with the bus bar 302 in size, a conductive bar 304 matched with the bus bar 302 and the rubber bar 303 is installed in the bar-shaped shell 301, and the conductive bar 304 is used for supplying power to the bus bar 302; the conductive bar 304 is formed by splicing a plurality of power receiving nodes 402, and the plurality of power receiving nodes 402 are connected in series.

Referring to fig. 3-4, a press row 4 is arranged on the outer side of the press belt 3, a pair of ball screws 6 are connected between the press belt 3 and the press row 4, fixed ends of the ball screws 6 are connected with the press belt 3, movable ends 7 of the ball screws 6 are connected with the press row 4, a protective shell 401 slides relative to the strip-shaped shell 301, outer walls of the strip-shaped shell 301 and the protective shell 401 are polished smoothly, the press row 4 comprises the protective shell 401, a plurality of uniformly distributed power connection nodes 402 are arranged in the protective shell 401, and press pins 403 are fixedly connected to the power connection nodes 402;

the press row 4 can move relative to the press belt 3, so that the reinforcement pressing can be performed by using a plurality of press needles on the press row 4 on the basis that the press belt 3 presses the weld belt, and the press row 4 can also be extended to independently use the press needles of the press row 4 to perform multi-point local pressing, so that the working modes of multi-point local pressing and large-area strip pressing can be conveniently switched according to working requirements.

Referring to fig. 1 and 4, a conductive pipeline 5 is connected between the press belt 3 and the press bar 4, the conductive pipeline 5 includes a protection tube 501 connected with the L-shaped connection board 2, a first cable 502 and a second cable 503 are disposed in the protection tube 501 in a penetrating manner, the first cable 502 is connected with the conductive bar 304, and the second cable 503 is connected with the plurality of electrical connection nodes 402. The second cable 503 comprises a plurality of cables penetrating the protective tube, the plurality of cables are respectively connected with the plurality of power receiving nodes 402, and the first cable 502 penetrates the strip-shaped shell 301 and is in telecommunication connection with the conductive bars 304;

install on the bar shell 301 with first cable 502 assorted threading cover, press area 3 and press row 4 power supply through first cable 502 and second cable 503, first cable 502 and second cable 503 unify and are connected with external distribution equipment, make things convenient for voltage regulation.

When the welding strip pressing device is used, the L-shaped connecting plate 2 is driven by the electric push rod 1 to integrally displace in the vertical direction, so that the pressing strip 3 and the pressing row 4 are close to the welding strip, and the welding strip can be integrally pressed by the pressing strip 3;

at the moment, the pressing row 4 can be controlled to further downwards displace through the ball screw 6, so that multipoint pressing is performed; the welding belt can be locally pressed at multiple points while being pressed in a large area, so that the pressing requirements of welding belts in different shapes are met;

when can realize the butt welding area pressing operation, can fast switch over multiple spot presses and large tracts of land row presses operating mode as required, conveniently adjust the pressure of pressing, reduce adjustment time, improve production efficiency.

The above description is only of the preferred embodiments of the present utility model; the scope of the utility model is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present utility model, and the technical solution and the improvement thereof are all covered by the protection scope of the present utility model.

Claims (6)

1. The utility model provides a compound row of pressing for EL test, includes electric putter (1), its characterized in that: an L-shaped connecting plate (2) is fixedly connected to the telescopic end of the electric push rod (1), a pressing belt (3) is fixedly connected to the lower end of the L-shaped connecting plate (2), the pressing belt (3) comprises a strip-shaped shell (301), a bus bar (302) and a rubber strip (303) are fixedly connected to the lower end of the strip-shaped shell (301), and a conductive bar (304) matched with the bus bar (302) and the rubber strip (303) is arranged in the strip-shaped shell (301);

the outer side of the pressing belt (3) is provided with a pressing row (4), a pair of ball screws (6) are connected between the pressing belt (3) and the pressing row (4), the pressing row (4) comprises a protective shell (401), a plurality of uniformly distributed power connection nodes (402) are arranged in the protective shell (401), and pressing pins (403) are fixedly connected to the power connection nodes (402);

be connected with electrically conductive pipeline (5) between press area (3) and the press row (4), electrically conductive pipeline (5) include protection tube (501) be connected with L type connecting plate (2), wear to be equipped with first cable (502) and second cable (503) in protection tube (501), first cable (502) are connected with electrically conductive row (304), second cable (503) are connected with a plurality of electric connection nodes (402).

2. The composite press bar for EL testing according to claim 1, wherein: the second cable (503) comprises a plurality of cables penetrating through the protection tube, and the cables are respectively connected with the plurality of power receiving nodes (402).

3. The composite press bar for EL testing according to claim 1, wherein: the first cable (502) penetrates through the strip-shaped shell (301) and is in telecommunication connection with the conducting bar (304), and a threading sleeve matched with the first cable (502) is installed on the strip-shaped shell (301).

4. The composite press bar for EL testing according to claim 1, wherein: the conductive bar (304) is formed by splicing a plurality of power connection nodes (402), and the plurality of power connection nodes (402) are connected in series.

5. The composite press bar for EL testing according to claim 1, wherein: the protective shell (401) and the strip-shaped shell (301) slide relatively, and the outer walls of the strip-shaped shell (301) and the protective shell (401) are polished smoothly.

6. The composite press bar for EL testing according to claim 1, wherein: the rubber strip (303) is matched to the size of the bus bar (302).