CN209046593U - A kind of EL test device - Google Patents

Abstract

The utility model discloses a kind of EL test devices, belong to manufacture of solar cells technical field.The EL test device includes probe upper mold group and cylinder lower die group setting up and down, wherein the probe upper mold group fixed setting, cell piece can be admitted between the probe upper mold group and the cylinder lower die group；The cylinder lower die group includes fixing seat, the cylinder in the fixing seat and is connected to the driving end of the cylinder and powers on copper sheet, and the copper sheet that powers on can go up and down under the driving of the cylinder.The utility model replaces feed screw nut elevating mechanism using cylinder, reduces the probability of equipment damage, reduces a large amount of spare parts cost and workload；The utility model drives the positional accuracy that can guarantee to power on copper sheet using cylinder, keeps the contact position of probe and cell piece more stable.

Description

A kind of EL test device

Technical field

The utility model relates to manufacture of solar cells technical field more particularly to a kind of EL test devices.

Background technique

In manufacture of solar cells manufacturing field, EL test (i.e. electroluminescent test) is usually used in detecting solar battery sheet Crack, fragment, rosin joint, disconnected grid the defects of.EL test device generally comprises probe and powers on mould group, regulated power supply, infrared camera And display device, the probe that middle probe powers on mould group are used to accurately press to the process point of cell piece；Regulated power supply is used for After probe and technique point contact, gives electric current completion and power on；Cell piece is shone after being powered, and absorbs battery using infrared camera The image of piece；Display device shows the image of shooting on a display screen, and staff is facilitated to check and judge defect.

It includes probe upper mold group and probe lower die group that existing probe, which powers on mould group, and cell piece is in probe upper mold group and spy It is transmitted between needle lower die group；Probe upper mold group pushes under the driving of elevating mechanism, probe lower die group rises, and then realizes Contact of the probe with cell piece is powered.Common elevating mechanism is the feed screw nut elevating mechanism that motor drives；But the lifting Mechanism is higher to the required precision of lead screw, is easily damaged in frequent elevating movement, and use between lead screw and nut It is threadedly engaged, inevitable that gap, the lifting position for causing probe to power on mould group is unstable, and probe and cell piece connect There is error in touching position, and then causes the insertion depth of probe unstable, and the image of cell piece show unintelligible, this is in increase image While debugging work load, the detection and judgement of defect are also influenced；And if the probe of probe upper mold group and probe lower die group occurs Dislocation also results in cell piece unbalance stress, and generation is secretly split, and reduces the quality of production of cell piece.

Utility model content

The purpose of this utility model is to provide a kind of EL test devices, keep the contact position of probe and cell piece more steady It is fixed, it ensure that the stability of cell piece detection.

To achieve the above object, the following technical schemes are provided:

A kind of EL test device is set to detection interior, which includes probe upper mold group setting up and down With cylinder lower die group, wherein probe upper mold group fixed setting, cell piece can be admitted to the probe upper mold group and described Between cylinder lower die group；

The cylinder lower die group includes fixing seat, the cylinder in the fixing seat and the driving for being connected to the cylinder End powers on copper sheet, and the copper sheet that powers on can be gone up and down under the driving of the cylinder.

Preferably, the cylinder includes cylinder body, stretches out the cylinder rod of the cylinder body setting and be fixedly arranged at the top of the cylinder rod Stress pressing plate；The stress pressing plate and described power on are folded with backing plate between copper sheet.

Preferably, the fixing seat includes the bottom plate being mutually connected vertically and cylinder support plate, the bottom plate is fixed on The lower part of the sensing chamber, the cylinder body are fixed on the side of the cylinder supports plate.

Preferably, being equipped with the reinforcing rib of wedge shape between the bottom plate and the cylinder supports plate.

Preferably, described power on offers bar shaped groove on copper sheet；The bar shaped groove along cell piece sender To setting.

Preferably, the probe upper mold group includes the support rod being mutually connected vertically and needle row's fixed frame；The support Bar is connected to the top of the sensing chamber；It is provided with multiple needle rows on the needle row fixed frame, is distributed on the needle row multiple Probe.

Preferably, needle row's fixed frame is rectangular frame structure, the needle row fixed frame include two be parallel to each other and Spaced fixed plate and two are parallel to each other and spaced snap-gauge；The snap-gauge and the fixed plate are mutually perpendicular to solid Fixed connection；The support rod is fixedly connected with the snap-gauge；The needle row is fixedly arranged between two snap-gauges.

Preferably, being installed with press strip on the snap-gauge, multiple vertical directions are equipped on the snap-gauge and the press strip Slot；The slot of the slot of the snap-gauge and the press strip is interconnected, and the needle socket is set to the snap-gauge and the pressure In the slot of item.

Preferably, further including photoelectric sensor；Equipped with accommodation groove, the photoelectric sensor is set to the copper sheet that powers on In the accommodation groove；The photoelectric sensor is connected with connecting rod, and the connecting rod is fixed on the fixing seat, the photoelectric transfer The light that sensor issues emits straight up.

Preferably, further including photoelectric sensor, the photoelectric sensor is fixedly arranged on the surface for powering on copper sheet；Institute It states to power on and is provided with through-hole on copper sheet, the light that the photoelectric sensor issues passes through the through-hole and emits straight down.

Compared with prior art, the utility model has the beneficial effects that

The utility model replaces feed screw nut elevating mechanism using cylinder, reduces the probability of equipment damage, reduces big The spare parts cost and workload of amount；The probe upper mold group of the utility model is fixed, but passes through the rising of cylinder lower die group It realizes that cell piece powers on, can guarantee the positional accuracy for powering on copper sheet using cylinder driving, make contact of the probe with cell piece Position is more stable, and battery picture shows the detection and judgement for being uniformly conducive to further battery tablet quality；In the utility model Cylinder under electric mould group original probe lower die group substituted using copper sheet, can to avoid probe upper mold group and probe lower die group because Cell piece caused by probe misplaces secretly splits phenomenon.

Detailed description of the invention

Fig. 1 is the overall structure diagram of EL test device in the utility model；

Fig. 2 is the structural schematic diagram of the utility model middle probe upper mold group；

Fig. 3 is the structural schematic diagram at the first visual angle of cylinder lower die group in the utility model；

Fig. 4 is the structural schematic diagram at the second visual angle of cylinder lower die group in the utility model.

Appended drawing reference:

1- probe upper mold group；11- support rod；12- needle arranges fixed frame；121- fixed plate；122- snap-gauge；123- needle row； 124- press strip；2- cylinder lower die group；21- fixing seat；211- bottom plate；212- cylinder supports plate；213- reinforcing rib；22- cylinder； 221- cylinder body；222- piston rod；223- guide rod；224- stress pressing plate；23- powers on copper sheet；231- bar shaped groove；232- accommodating Slot；24- backing plate；3- photoelectric sensor；4- connecting rod.

Specific embodiment

The technical issues of to solve the utility model, the technical solution of use and the technical effect that reaches are clearer, It is described in further detail below in conjunction with technical solution of the attached drawing to the utility model embodiment, it is clear that described reality Applying example is only the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, It is practical new to belong to this for those skilled in the art's every other embodiment obtained without making creative work The range of type protection.

As shown in Figure 1, present embodiments providing a kind of EL detection device, which is set to detection interior, including The probe upper mold group 1 on top and the cylinder lower die group 2 of lower part, cell piece are sharp between probe upper mold group 1 and cylinder lower die group 2 It is transmitted with conveyer belt.Carry out EL detection when, probe upper mold group 1 remains stationary, cylinder lower die group 2 jack up cell piece make its with Probe upper mold group 1 contacts, and is powered and completes powering on for cell piece, is shot, will be shot followed by infrared camera in sensing chamber Image afterwards, which is uploaded on display screen, carries out quality testing.

Specifically, as shown in Fig. 2, probe upper mold group 1 includes the support rod 11 being arranged in a mutually vertical manner and needle row's fixed frame 12； It is rectangular frame structure that needle, which arranges fixed frame 12, including two are parallel to each other and spaced fixed plate 121 and two are parallel to each other And spaced snap-gauge 122, multiple needle rows 123 are uniformly arranged between two snap-gauges 122.Snap-gauge 122 and fixed plate 121 are logical Bolt arrangement is crossed to be mutually perpendicular to be fixedly connected；There are four the settings of support rod 11, and is in distributed rectangular on needle row's fixed frame 12；Branch The side wall of strut 11 is equipped with protrusion, and the lower surface of snap-gauge 122 is arranged card slot, card slot and protrusion are clamped, and utilizes bolt knot Support rod 11 is fixedly connected by structure with snap-gauge 122, i.e. the fixation of completion support rod 11 and needle row's fixed frame 12；Again by support rod 11 It is fixedly arranged on the top of sensing chamber, then needle row fixed frame 12 is able to be fixed on detection interior.

It is equipped with the slot of multiple vertical directions on the side wall of snap-gauge 122, needle row 123 is inserted in slot；Each needle row Several probes are evenly distributed on 123, the axial line of probe is placed in the vertical direction；In order to guarantee needle row 123 in snap-gauge 122 On stability, prevent needle row from 123 being moved by the upward active force of cylinder lower die group 2, cause probe effective Ground contacts cell piece, is equipped with press strip 124 on the top of snap-gauge 122；It also is provided with arranging the vertical side of 123 insertions for needle on press strip 124 To slot, the slot on slot and snap-gauge 122 on press strip 124 is interconnected, so that needle row 123 is inserted in snap-gauge After on 122 slot, the part of 123 protrusion snap-gauge 122 of needle row is clamped just with the slot on press strip 124, then press strip 124 is led to It crosses bolt arrangement and snap-gauge 122 is fixed, is i.e. installation of the completion needle row 123 on needle row's fixed frame 12 is fixed, and ensure that probe Mounting stability.

The number of needle row 123 is set as 5 in the present embodiment, and needle row 123, snap-gauge 122 and press strip 124 are all made of copper material Matter manufacture, facilitates conduction.

As shown in Figure 3-4, cylinder lower die group 2 is including fixing seat 21, the cylinder 22 in fixing seat 21 and by cylinder 22 Driving lifting powers on copper sheet 23；Specifically, cylinder 22 includes cylinder body 221, stretches out cylinder rod and be fixedly arranged on cylinder that cylinder body 221 is arranged Stress pressing plate 224 at the top of bar；Stress pressing plate 224 is fixedly connected with copper sheet 23 is powered on, when so that cylinder 22 driving cylinder rod lifting, Powering on copper sheet 23 can go up and down together；Fixing seat 21 includes the bottom plate 211 being mutually connected vertically and cylinder support plate 212, bottom plate 211 are fixed on the lower part of sensing chamber by bolt arrangement, and cylinder body 221 is fixed on the side of cylinder supports plate 212.

Specifically, fixing seat 21 can the setting of L-shaped or inverted T-type structure, preferably inverted T-type structure in the present embodiment, So that fixing seat 21 is more firm for the support for powering on copper sheet 23.Further, in order to increase bottom plate 211 and cylinder support plate 212 connective stability is equipped with the reinforcing rib 213 of wedge shape between bottom plate 211 and cylinder support plate 212.

The MGP band guide rod cylinder of the preferred SMC of 22 model of cylinder in the present embodiment, the cylinder 22 stretch out cylinder body 221 and are arranged There are three cylinder rods, the respectively piston rod 222 at middle part and the guide rod 223 for being symmetrically set in 222 two sides of piston rod, stress pressing plate 224 are fixedly arranged on the top of three cylinder rods, and the stroke of piston rod 222 is 20mm.Under the driving of cylinder body 221, piston rod 222 and lead To 223 synchronization lifting of bar, the setting of guide rod 223 is so that the elevating movement of cylinder 22 is more accurate, it is ensured that powers on copper sheet 23 The precision of each lifting position.

Since the size for powering on copper sheet 23 is big compared with the size of stress pressing plate 224, copper sheet 23 is powered in the drive of stress pressing plate 224 When lifting, unstability may be occurred by powering on copper sheet 23, influence displacement accuracy.Therefore it in stress pressing plate 224 and powers between copper sheet 23 Be folded with backing plate 24, backing plate 24 with power on copper sheet 23 and stress pressing plate 224 be fixedly connected, and the length of backing plate 24 with power on The length of copper sheet 23 is identical；The setting of backing plate 24 is so that the active force of piston rod 222 passes through 24 stepless action of backing plate in upper electrolytic copper On plate 23, the stability when drive of cylinder 22 powers on the movement of copper sheet 23 is improved.

Power on copper sheet 23 generally copper material make, when cylinder 22 drive its rising when, power on copper sheet 23 move up by Cell piece jacks up, and continues to rise until the probe of probe upper mold group 1 is contacted with cell piece；By probe and powers on copper sheet 23 and connect The copper sheet 23 that powers on of power supply, lower part makees cathode, and the probe on top makees anode, forms complete circuit, completes to the upper of cell piece Electricity；Cell piece, which has been powered, to be shone, and then the infrared camera for being detected indoor setting captures imaging；It is driven with exhaust hood 22 Electrolytic copper plate 23 declines, and cell piece also returns to original position, and is sent out by conveyer belt.By probe in the prior art in the present embodiment The probe of lower die group replaces with copper sheet, can be to avoid probe upper mold group 1 and probe lower die group because of battery caused by probe dislocation Piece secretly splits phenomenon；Probe upper mold group 1 simultaneously in the present embodiment is fixed, and powering on copper sheet 23, accurately control rises by cylinder 22 Drop, therefore the contact position of probe and cell piece is more stable, battery picture is shown uniformly, is conducive to further battery tablet quality Detection and judgement.

In order to eliminate obstruction of the cell piece conveyer belt when powering on copper sheet 23 and rising, bar shaped is offered on powering on copper sheet 23 Through slot 231, bar shaped groove 231 is arranged along the direction of transfer of conveyer belt, and the width of bar shaped groove 231 is greater than the width of conveyer belt Degree.When powering on the rising jack-up cell piece of copper sheet 23, conveyer belt is located exactly in bar shaped groove 231, is declined when powering on copper sheet 23 When, bar shaped groove 231 moves down, and conveyer belt exposes, while cell piece drops down on conveyer belt, continues to send out by conveyer belt.

It further include photoelectric sensor 3 in the EL test device to control the cyclical upturn and downturn of cylinder, when cell piece conveys When between probe upper mold group 1 and cylinder lower die group 2, photoelectric sensor 3 captures the signal of light variation, and converts optical signals into To the control system of entire test device, control system control cylinder gone up and down electric signal, completes powering on for cell piece, and upper one After group cell piece transfers out, photoelectric sensor 3 continues induction and completes powering on for next group of cell piece, in cycles, realizes electricity The continuous EL of pond piece is tested.

The present embodiment provides a kind of mounting means of photoelectric sensor 3, specifically, accommodation groove are equipped on powering on copper sheet 23 232, photoelectric sensor 3 is set in the accommodation groove 232 by connecting rod 4, one end of connecting rod 4 and the bottom plate 211 of fixing seat 21 It is fixedly connected, the other end is installed with above-mentioned photoelectric sensor 3.Scattered reflection can be selected in photoelectric sensor 3 under this kind of mounting means Type optoelectronic switch is equipped with a photophore and a light receiving device in its detector, and the light that photophore issues under normal circumstances is received Light device can not find, and light blocked when cell piece passes through, and light part is reflected, and light receiving device just receives optical signal, A switching signal is exported to control system.

The present embodiment also provides the mounting means of another photoelectric sensor 3, and specifically, photoelectric sensor 3 is fixedly arranged on Detection is indoor, and is located at punch block fixed plate 121 and powers on the surface of copper sheet 23；It powers on and is provided with through-hole, photoelectricity on copper sheet 23 The light that sensor 3 issues can pass through punch block fixed plate 121 and through-hole emits straight down；Under this kind of mounting means, photoelectric transfer Sensor 3 can still select diffusion reflection pattern optoelectronic switch, and when cell piece is by powering on 23 surface of copper sheet, cell piece is blocked Light, and light is reflected；In addition, reflector type optoelectronic switch also can be selected in photoelectric sensor 3 under this kind of mounting means, it It is also in photophore and the same detector of light receiving device loading, but it is reflective that the underface for powering on copper sheet 23 is provided with one simultaneously Plate；Under normal circumstances, the light that photophore issues is reflected by reflector to be received by light receiving device；Once optical path is kept off by cell piece Firmly, when light receiving device can not receive light, optoelectronic switch is just acted, and exports a switch control signal to control system.

Due to using original probe lower die group, area is bigger to be powered on EL detection device provided by the present embodiment Copper sheet substitution, therefore both can be adapted for 5BB type cell piece, it is also applied for MBB type cell piece, it is only necessary to according to the knot of cell piece Structure adjusts the distribution of 1 probe of probe upper mold group, reaches coming into full contact with for probe and each cell piece, improves EL detection The applicability of device.

Note that above are only the preferred embodiment and institute's application technology principle of the utility model.Those skilled in the art's meeting Understand, the utility model is not limited to specific embodiment described here, is able to carry out for a person skilled in the art various bright Aobvious variation, readjustment and substitution is without departing from the protection scope of the utility model.Therefore, although passing through above embodiments The utility model is described in further detail, but the utility model is not limited only to above embodiments, is not departing from It can also include more other equivalent embodiments in the case that the utility model is conceived, and the scope of the utility model is by appended Scope of the claims determine.

Claims (10)

1. a kind of EL test device it is indoor to be set to detection, which is characterized in that the EL test device includes spy setting up and down Needle upper mold group (1) and cylinder lower die group (2), wherein probe upper mold group (1) fixed setting, cell piece can be admitted to institute It states between probe upper mold group (1) and the cylinder lower die group (2)；

The cylinder lower die group (2) includes fixing seat (21), the cylinder (22) being set on the fixing seat (21) and is connected to institute Powering on copper sheet (23) for the driving end of cylinder (22) is stated, the copper sheet (23) that powers on can rise under the driving of the cylinder (22) Drop.

2. EL test device according to claim 1, which is characterized in that the cylinder (22) includes cylinder body (221), stretches out The cylinder rod of cylinder body (221) setting and the stress pressing plate (224) being fixedly arranged at the top of the cylinder rod；The stress pressing plate (224) And described power on is folded with backing plate (24) between copper sheet (23).

3. EL test device according to claim 2, which is characterized in that the fixing seat (21) includes being mutually connected vertically Bottom plate (211) and cylinder support plate (212), the bottom plate (211) be fixed on the lower part of the sensing chamber, the cylinder body (221) it is fixed on the side of the cylinder supports plate (212).

4. EL test device according to claim 3, which is characterized in that the bottom plate (211) and the cylinder supports plate (212) reinforcing rib (213) of wedge shape is equipped between.

5. EL test device according to claim 1, which is characterized in that described to power on that offer bar shaped on copper sheet (23) logical Slot (231)；The bar shaped groove (231) is arranged along the direction of transfer of cell piece.

6. EL test device according to claim 1, which is characterized in that the probe upper mold group (1) includes being mutually perpendicular to The support rod (11) and needle of connection arrange fixed frame (12)；The support rod (11) is connected to the top of the sensing chamber；The needle It is provided with multiple needle rows (123) on row fixed frame (12), multiple probes are distributed on the needle row (123).

7. EL test device according to claim 6, which is characterized in that needle row fixed frame (12) is rectangle frame knot Structure, needle row fixed frame (12) include two be parallel to each other and spaced fixed plate (121) and two be parallel to each other and Spaced snap-gauge (122)；The snap-gauge (122) is mutually perpendicular to be fixedly connected with the fixed plate (121)；The support rod (11) it is fixedly connected with the snap-gauge (122)；The needle row (123) is fixedly arranged between two snap-gauges (122).

8. EL test device according to claim 7, which is characterized in that be installed with press strip on the snap-gauge (122) (124), the slot of multiple vertical directions is equipped on the snap-gauge (122) and the press strip (124)；The snap-gauge (122) Slot and the slot of the press strip (124) are interconnected, and the needle row (123) is inserted in the snap-gauge (122) and the press strip (124) in slot.

9. EL test device according to claim 1, which is characterized in that further include photoelectric sensor (3)；The upper electrolytic copper Plate (23) is equipped with accommodation groove (232), and the photoelectric sensor (3) is set in the accommodation groove (232)；The photoelectric sensor (3) it is connected with connecting rod (4), the connecting rod (4) is fixed on the fixing seat (21), what the photoelectric sensor (3) issued Light emits straight up.

10. EL test device according to claim 1, which is characterized in that further include photoelectric sensor (3), the photoelectricity Sensor (3) is fixedly arranged on the surface for powering on copper sheet (23)；Described power on is provided with through-hole, the photoelectricity on copper sheet (23) The light that sensor (3) issues passes through the through-hole and emits straight down.