WO2013115046A1

WO2013115046A1 - Probe for measuring characteristics of solar cell

Info

Publication number: WO2013115046A1
Application number: PCT/JP2013/051400
Authority: WO
Inventors: 敏明古賀; 正弘上野
Original assignee: 山下電装株式会社
Priority date: 2012-02-03
Filing date: 2013-01-24
Publication date: 2013-08-08
Also published as: TW201339582A; JP5722466B2; JPWO2013115046A1

Abstract

This probe for measuring the characteristics of a solar cell is provided with: arch-shaped first wire contactors having elasticity, which are formed by a conductive metal material; and anchoring support parts for anchoring at least one end of the first wire contactors. The first wire contactors extend along the surface electrodes of a solar cell to be measured, and face the light-receiving surface of the solar cell, and are configured in such a manner as to deform and conduct along the surface electrodes when pressed against the surface electrodes.

Description

Probe device for measuring the characteristics of solar cells

The present invention relates to a characteristic measurement probe device used when measuring the output characteristics of a solar battery cell.

Solar cells are becoming increasingly important as a renewable energy source, and their demand has increased significantly in recent years. As such, with the increase in demand, when solar cells are widely distributed, techniques for measuring and confirming the output characteristics fairly have become important.

When measuring the output characteristics of a solar battery cell, using actual sunlight is affected by the weather and the like to cause characteristic fluctuation. Therefore, the output characteristics in a state where the solar battery cell is irradiated with simulated sunlight from a solar simulator Measuring is done. As described above, even when the output characteristics of the solar battery cell are measured fairly and accurately using the solar simulator, the contact resistance of the characteristic measurement probe electrically contacting the collector electrode of the solar battery cell is low and stable. It is necessary to do.

In Patent Document 1, as a prior art, a solar battery cell in which a plurality of needle-like pin probes biased by a compression coil spring are brought into contact with electrodes of a solar battery cell provided on the light receiving surface side to extract an output signal. An apparatus for measuring the characteristics of

Patent No. 4386783

In the conventional characteristic measuring apparatus as disclosed in Patent Document 1, a plurality of needle-like probes arranged in a line along a current collecting electrode provided on the light receiving surface of a solar battery cell are biased by a compression coil spring. The output signal is taken out with low contact resistance by making electrical contact with these collecting electrodes.

Thus, in order to keep contact resistance to the collecting electrode low and to be stable, it is necessary to provide a support member having a strength and a size sufficient to withstand the elastic force of the compression coil spring pressing the needle-like probe, In addition, it is necessary to wire a wire for making an electrical connection with each probe. However, the dimensions of these support members and wiring wires are increased, so that part of the simulated sunlight emitted by the support members and wiring wires is blocked, causing shadows of them on the solar cells, which It has been a major obstacle to the measurement of accurate photoelectric conversion characteristics.

Therefore, an object of the present invention is to provide a solar battery cell in which the contact resistance to the electrode of the solar battery cell to be measured can be stably suppressed to a low level, and the irradiation of simulated sunlight to the light receiving surface is hardly interrupted. It is providing a probe apparatus for characteristic measurement.

According to the present invention, the probe device for measuring the characteristics of the solar battery cell comprises: a resilient first arched wire contact made of a conductive metal material; and at least one of the first wire contacts. And a fixed support for fixing the end. The first wire contact extends along the surface electrode of the solar cell to be measured and faces the light receiving surface of the solar cell, deforms when pressed against the surface electrode, and extends along the surface electrode And is configured to conduct.

The arch-shaped first wire contactor is opposed to the light receiving surface of the solar cell along the surface electrode, deformed when pressed against the surface electrode and extended along the surface electrode for contact Conducts. As a result, the contact resistance of the probe device for characteristic measurement can be stably maintained low, and moreover, the shadow of the probe device for characteristic measurement does not occur on the light receiving surface of the solar battery cell, and the irradiation of simulated sunlight is almost blocked. Because it is no longer possible, characteristic measurement can be performed without substantially reducing the conversion efficiency of the solar battery cell.

Preferably, the fixed support is configured to fix both ends of the first wire contact.

The fixed support is preferably configured to fix only one end of the first wire contact, and the other end of the first wire contact is preferably configured to be movable in the axial direction.

It is preferable that the solar battery cell and the fixed support portion be configured to be relatively movable in order to change the distance between them.

The first wire contactor is a current detection terminal, and further includes a second wire contactor that is a voltage detection terminal fixed to the fixed support portion so as to abut on both ends of the surface electrode. preferable.

It is also preferable that the first wire contact is a shared terminal for current detection and voltage detection.

It is also preferred that the first wire contact has a width smaller than the width of the surface electrode.

The first wire contact is also preferably composed of a single conductive wire, a plurality of conductive wires twisted together, or a steel wire having conductive wires wound around it. The conductive wire is preferably made of a wire material of next bronze, bronze, brass, white copper, nickel white or copper, and it is also preferable that the surface of the wire is plated with gold or nickel.

According to the present invention, the contact resistance of the probe device for characteristic measurement can be stably kept low, and moreover, the shadow of the probe device for characteristic measurement does not occur on the light receiving surface of the solar battery cell, and the irradiation of simulated sunlight Can be almost uninterrupted, so that the characteristic measurement can be performed with almost no reduction in the conversion efficiency of the solar cell.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view which shows roughly the structure of the probe apparatus for characteristic measurement in the characteristic measuring device of a photovoltaic cell as 1st Embodiment of this invention. FIG. 2 is a side view schematically showing configurations of a current measurement probe and a voltage measurement probe in the first embodiment. It is a perspective view which shows roughly the structure of the probe apparatus for characteristic measurement in the characteristic measuring device of a photovoltaic cell as 2nd Embodiment of this invention. It is a perspective view which shows roughly the structure of the probe apparatus for characteristic measurement in the characteristic measurement apparatus of a photovoltaic cell as 3rd Embodiment of this invention. It is a side view which shows roughly the structure of the probe for current measurement in 3rd Embodiment, and the probe for voltage measurement. It is a graph which shows the characteristic measured by the characteristic measurement apparatus of the photovoltaic cell using the technique of a prior art, 1st Embodiment, and 3rd Embodiment.

FIG. 1 schematically shows the configuration of a probe device for characteristic measurement in the first embodiment of the present invention, and FIG. 2 schematically shows the configuration of a current measurement probe and a voltage measurement probe in the present embodiment. ing. The probe device for characteristic measurement of the present embodiment is a device for performing measurement of output characteristics of a solar battery cell by a four-terminal method using a current measurement probe and a voltage measurement probe which are independent of each other.

1 and 2, reference numeral 10 denotes a solar battery cell whose characteristics are to be measured, and 11 denotes a fixing base on which the solar battery cell 10 is fixed. The solar battery cell 10 is fixed on the fixed base 11 by vacuum or other mechanical means so that the back surface is in contact with the front surface of the fixed base 11, and the light receiving surface which is the surface is simulated from a solar simulator Sunlight is emitted approximately perpendicularly to the light receiving surface.

The fixing base 11 is formed of a conductive metal plate and is mechanically fixed to and supported by the support member 12 shown in FIG. In the present embodiment, the support member 12 is fixed in the stationary position, and hence the fixed base 11 is also fixed in the stationary position. The fixing base 11 serves both as a back surface terminal electrically connected to the back surface electrode of the solar battery cell 10 and in conduction, and as a thermostatic panel cooling the solar battery cell 10 to keep the temperature constant. As shown in FIG. 2, the back surface current terminal 13 and the back surface voltage terminal 14 are electrically connected in common to the fixed base 11. However, illustration is abbreviate | omitted about the wiring connected to a measurement apparatus from the electric current terminal 13 for back surface electrodes, and the voltage terminal 14 for back surface electrodes. Also, the means for cooling the fixed base 11 is not shown.

On the light receiving surface of the solar battery cell 10, a cell body and two surface electrodes (bus bars) 10a in the example of the present embodiment for collecting the electromotive force of the cell body are formed. The two surface electrodes 10a extend linearly in parallel with one another. At the time of characteristic measurement, as shown in FIG. 1 and FIG. 2, the current measurement probe 15 which is a current terminal for surface electrode and the voltage measurement probe 16 which is a voltage terminal for surface electrode are pushed to each surface electrode 10a. It is applied and conduction is made. When the number of surface electrodes (bus bars) is three or more, the current measurement probe 15 and the voltage measurement probe 16 corresponding to the number are provided.

The current measurement probe 15 corresponds to the first wire contact of the present invention, and is formed of a resilient arch-shaped wire formed of a conductive metal material. The current measurement probe 15 extends along the surface electrode 10a in a state of facing the light receiving surface of the solar battery cell 10, is in contact with the surface electrode 10a and is electrically connected, and both ends thereof are fixed. It is fixed by the support portion 17.

The voltage measurement probe 16 corresponds to the second wire contact of the present invention, and is composed of a pair of elastic wires formed of a conductive metal material. One end of each of the voltage measurement probes 16 is in contact with and electrically connected to one end of the surface electrode 10 a of the solar battery cell 10, and the other end is fixed to the fixed support 17.

In the present embodiment, the current measurement probe 15 and the voltage measurement probe 16 are configured by twisting three conductive wires of nickel and white copper with a diameter of 0.5 mm. By twisting together, the contact area with the surface electrode 10a becomes large. In a modification of this embodiment, the current measurement probe 15 and the voltage measurement probe 16 may be a single conductive wire, two or more conductive wires twisted around each other, or conductive wires around the periphery. Composed of wound steel wire. Further, as the conductive wire, a wire material of next bronze, bronze, brass, white copper or copper may be used, and further, a wire obtained by performing gold plating or nickel plating on the surface of the wire material may be used. Conductivity is further improved by performing such surface treatment. Further, the widths of the current measurement probe 15 and the voltage measurement probe 16 are configured to be smaller than the width of the surface electrode 10 a of the solar battery cell 10.

Each fixed support portion 17 is mechanically fixed to each connecting member 18, and the connecting member 18 is mechanically fixed to the groove 19a of the mounting frame 19 by a bolt 20 or the like. The bolt 20 and the like are configured to be movable along the groove 19a, thereby moving the connection member 18 and the fixed support portion 17 along the groove 19a to move the current measurement probe 15 and the voltage measurement probe 16 It can be accurately aligned on the center line of the surface electrode 10a.

The mounting frame 19 is fixed to the vertical movement member 21, and the vertical movement member 21 is configured to be vertically movable with respect to the fixed column member 22. Thereby, the distance between the current measurement probe 15 and the voltage measurement probe 16 and the surface electrode 10 a of the solar battery cell 10 can be changed.

At the time of measuring the output characteristics of the solar battery cell 10, the vertical movement member 21 is lowered to press the current measurement probe 15 against the surface electrode 10a to deform it so that the entire surface electrode 10a is electrically contacted. At the same time, the voltage measurement probe 16 is electrically connected to a part of the surface electrode 10a to conduct. This makes it possible to measure the output of the solar battery cell 10. In addition, about the wiring connected to a measuring instrument from the probe 15 for current measurement, and the probe 16 for voltage measurements, the display is abbreviate | omitted in FIG.

As described above, according to the present embodiment, the current measurement probe 15 and the voltage measurement probe 16 are pressed onto the surface electrode 10a to be conductive, and the current measurement probe 15 extends over the entire surface electrode 10a. Since electrical contact is made, it is possible to obtain the same function as the multipoint contact state. That is, the contact resistance as the probe device for characteristic measurement can be stably kept low, and moreover, the shadow of these probes does not occur on the light receiving surface of the solar battery cell 10, and the irradiation of simulated sunlight is almost blocked. Therefore, the characteristic measurement can be performed without substantially reducing the conversion efficiency of the solar battery cell 10. Incidentally, the conversion efficiency was improved by 2.3% as compared with the conventional probe apparatus for characteristic measurement according to the present applicant.

In the embodiment described above, the attachment frame 19 to which the current measurement probe 15 and the voltage measurement probe 16 are attached can be moved up and down, and the fixing base 11 to which the solar battery cell 10 is fixed is stationary. It is obvious that it is good also as composition which 19 stands still and it is possible to raise and lower fixed stand 11 side.

FIG. 3 schematically shows the configuration of a characteristic measurement probe device according to a second embodiment of the present invention. The characteristic measurement probe device of the present embodiment is an output characteristic measurement device of a solar battery cell that performs current measurement and voltage measurement using the common probe 35. In this embodiment, the same reference numerals are used for the same components as in the embodiment of FIGS. 1 and 2 and the description is omitted.

In the present embodiment, at the time of characteristic measurement, as shown in FIG. 3, the common probe 35 used for both current measurement and voltage measurement is pressed against each surface electrode 10a to conduct.

The common probe 35 corresponds to the first wire contact of the present invention, and is composed of a resilient arch-shaped wire formed of a conductive metal material. The common probe 35 extends along the front surface electrode 10a in a state of facing the light receiving surface of the solar battery cell 10, is in contact with the front surface electrode 10a and is electrically connected, and both ends thereof are fixed supporting portions It is fixed by 17.

In the present embodiment, the common probe 35 is formed by twisting three conductive wires of nickel-plated copper having a diameter of 0.5 mm. By twisting together, the contact area with the surface electrode 10a becomes large. In a variation of this embodiment, shared probe 35 is comprised of a single conductive wire, two or more conductive wires twisted around each other, or a steel wire having conductive wires wound around it. Ru. Further, as the conductive wire, a wire material of next bronze, bronze, brass, white copper or copper may be used, and further, a wire obtained by performing gold plating or nickel plating on the surface of the wire material may be used. Conductivity is further improved by performing such surface treatment. Further, the width of the common probe 35 is configured to be smaller than the width of the surface electrode 10 a of the solar battery cell 10.

The other configurations and operational effects of the second embodiment described above are the same as those of the first embodiment shown in FIGS. 1 and 2, and thus the description thereof is omitted.

FIG. 4 schematically shows the configuration of a probe device for characteristic measurement in the third embodiment of the present invention, and FIG. 5 schematically shows the configuration of a current measurement probe and a voltage measurement probe in the present embodiment. ing. The probe device for characteristic measurement of the present embodiment is a device for performing measurement of output characteristics of a solar battery cell by a four-terminal method using a current measurement probe and a voltage measurement probe which are independent of each other.

In FIG.4 and FIG.5, 10 shows the photovoltaic cell which should measure a characteristic, 11 has shown the fixing stand in which this photovoltaic cell 10 is fixed, respectively. The solar battery cell 10 is fixed on the fixed base 11 by vacuum or other mechanical means so that the back surface is in contact with the front surface of the fixed base 11, and the light receiving surface which is the surface is simulated from a solar simulator Sunlight is emitted approximately perpendicularly to the light receiving surface.

The fixing base 11 is formed of a conductive metal plate and is mechanically fixed to and supported by a support member (not shown). The support member is, in this embodiment, fixed in the rest position, so that the fixed base 11 is also fixed in the rest position. The fixing base 11 serves both as a back surface terminal electrically connected to the back surface electrode of the solar battery cell 10 and in conduction, and as a thermostatic panel cooling the solar battery cell 10 to keep the temperature constant. As shown in FIG. 5, a back electrode current terminal 13 and a back electrode voltage terminal 14 are electrically connected in common to the fixed base 11. However, illustration is abbreviate | omitted about the wiring connected to a measurement apparatus from the electric current terminal 13 for back surface electrodes, and the voltage terminal 14 for back surface electrodes. Also, the means for cooling the fixed base 11 is not shown.

On the light receiving surface of the solar battery cell 10, a cell body and two surface electrodes (bus bars) 10a in the example of the present embodiment for collecting the electromotive force of the cell body are formed. The two surface electrodes 10a extend linearly in parallel with one another. At the time of characteristic measurement, as shown in FIG. 4 and FIG. 5, the current measurement probe 45 which is a current terminal for surface electrode and the voltage measurement probe 46 which is a voltage terminal for surface electrode are pushed to each surface electrode 10a. It is applied and conduction is made. When the number of surface electrodes (bus bars) is three or more, current measurement probes 45 and voltage measurement probes 46 corresponding to the number are provided.

The current measurement probe 45 corresponds to the first wire contact of the present invention, and is composed of a resilient arch-shaped wire formed of a conductive metal material. The current measurement probe 45 extends along the surface electrode 10a in a state of facing the light receiving surface of the solar battery cell 10, is in contact with the surface electrode 10a and is electrically connected, and one end thereof is fixed A screw or the like is fixed to the support portion 47, and the other end is supported by the support portion 48 so as to be freely movable in the axial direction of the wire. As described above, in the present embodiment, since only one end of the current measurement probe 45 is fixed and the other end is movable in the axial direction, the central portion of the current measurement probe 45 is brought into contact with the surface electrode 10a. The floating and the lateral displacement are absorbed by the axial movement, and can be uniformly brought into contact with the surface electrode 10a, whereby a better electrical connection can be obtained.

The voltage measurement probe 46 corresponds to the second wire contact of the present invention, and is composed of an elastic wire made of a conductive metal material. One end of each of the voltage measurement probes 46 is in contact with and electrically connected to one end of the surface electrode 10 a of the solar battery cell 10, and the other end is fixed to a fixed support 49 by a screw or the like. In the present embodiment, only one voltage measurement probe 46 is provided for each surface electrode 10 a. Of course, a total of two voltage measurement probes 46 may be provided at both ends of each surface electrode 10a.

In the present embodiment, the current measurement probe 45 and the voltage measurement probe 46 are configured by twisting three conductive wires of nickel and white copper with a diameter of 0.5 mm. By twisting together, the contact area with the surface electrode 10a becomes large. In a modification of this embodiment, the current measurement probe 45 and the voltage measurement probe 46 may be a single conductive wire, two or more conductive wires twisted around each other, or conductive wires around the periphery. Composed of wound steel wire. Further, as the conductive wire, a wire material of next bronze, bronze, brass, white copper or copper may be used, and further, a wire obtained by performing gold plating or nickel plating on the surface of the wire material may be used. Conductivity is further improved by performing such surface treatment. Further, the widths of the current measurement probe 45 and the voltage measurement probe 46 are configured to be smaller than the width of the surface electrode 10 a of the solar battery cell 10.

The fixed support portion 47 is detachably fixed to the connecting member 51 fixed to the mounting frame 50 by a bolt or the like (not shown). The connecting member 51 is, for example, a groove (not shown) in the width direction of the solar battery cell 10 formed between the strip-like plate members facing each other and fixed, and each fixing support portion 47 Is mechanically fixed to the groove of the connection member 51 by a bolt or the like. The bolt is configured to be movable along the groove, thereby moving the fixed support portion 47 along the groove to accurately align the current measurement probe 45 on the center line of the surface electrode 10a. Can. The support portion 48 is detachably fixed to the connecting member 52 fixed to the mounting frame 50 by a bolt or the like (not shown). The connecting member 52 is, for example, a groove (not shown) in the width direction of the solar battery cell 10 formed between the two strip-like plate members facing each other and fixed, and each supporting portion 48 is It is mechanically fixed to the groove of the connection member 52 by a bolt or the like. The bolt is configured to be movable along the groove, so that the support portion 48 can be moved along the groove to accurately align the current measurement probe 45 on the center line of the surface electrode 10a. it can.

The fixed support 49 is detachably fixed to a connecting member 53 fixed to the mounting frame 50 by a bolt or the like (not shown). The connecting member 53 is, for example, a groove (not shown) in the width direction of the solar battery cell 10 formed between the two strip-like plate members facing each other and fixed, and each fixing support portion 49 Is mechanically fixed to the groove of the connection member 53 by a bolt or the like. The bolt is configured to be movable along the groove, whereby the fixed support 49 is moved along the groove to accurately align the voltage measurement probe 46 on the center line of the surface electrode 10a. Can.

The mounting frame 50 is fixed to the vertical movement member 54, and the vertical movement member 54 is configured to be able to move up and down in the vertical direction with respect to the fixed column member 55. As a result, the distance between the current measurement probe 45 and the voltage measurement probe 46 and the surface electrode 10 a of the solar battery cell 10 can be changed.

At the time of measuring the output characteristics of the solar battery cell 10, the vertical movement member 54 is lowered to press the current measurement probe 45 against the surface electrode 10a to deform it so that the entire surface electrode 10a is electrically contacted. At the same time, the voltage measurement probe 46 is electrically connected to a part of the surface electrode 10a to conduct. This makes it possible to measure the output of the solar battery cell 10. In addition, about the wiring connected to a measurement apparatus from the probe 45 for current measurement, and the probe 46 for voltage measurements, the display is abbreviate | omitted in FIG.

As described above, according to the present embodiment, the current measurement probe 45 and the voltage measurement probe 46 are pressed onto the surface electrode 10a to conduct electricity, and the current measurement probe 45 extends over the entire surface electrode 10a. Since electrical contact is made, it is possible to obtain the same function as the multipoint contact state. In the present embodiment, in particular, only one end of the current measurement probe 45 is fixed, and the other end is movable in the axial direction. Misalignment can be absorbed by axial movement, and can be uniformly brought into contact with the surface electrode 10a, and a better electrical connection can be obtained. That is, the contact resistance as the probe device for characteristic measurement can be stably kept lower, and moreover, the shadow of these probes does not occur on the light receiving surface of the solar battery cell 10, and the irradiation of simulated sunlight is almost blocked. Therefore, the characteristic measurement can be performed without substantially reducing the conversion efficiency of the solar battery cell 10.

In the embodiment described above, the mounting frame 50 to which the current measurement probe 45 and the voltage measurement probe 46 are attached can be moved up and down, and the fixing base 11 fixing the solar battery cell 10 is stationary. It is obvious that 50 may be stationary and the fixed base 11 may be moved up and down.

For a 6 inch single crystal silicon solar cell with three surface electrodes (bus bars), the prior art characterization device with a plurality of needle-like probes in a single row array biased by a spring as described in US Pat. A characteristic measurement apparatus having the current measurement probe according to the first embodiment using a fixed strand, and an IV characteristic (a characteristic measurement apparatus using the current measurement probe according to the third embodiment using a single wire fixed only at one end The current-voltage characteristics) and the PV characteristics (power-voltage characteristics) were actually measured. Table 1 shows the measurement conditions and the measurement results, and FIG. 6 shows the actually measured IV characteristics and PV characteristics. However, in FIG. 6, a is an IV characteristic measured by the conventional characteristic measuring apparatus, b is an IV characteristic measured by the characteristic measuring apparatus of the first embodiment, and c is the characteristic of the third embodiment. IV characteristics measured by the measuring device, d: PV characteristics measured by the prior art characteristics measuring device, e: PV characteristics measured by the characteristics measuring device of the first embodiment, f: third The PV characteristic measured by the characteristic measuring device of an embodiment is shown, respectively. In addition, the short circuit current density Jsc in Table 1 is a value obtained by dividing the short circuit current Isc by the area of the power generation portion of the solar cell, the short circuit current Isc is a current flowing between the terminals when the output terminal of the solar cell is shorted, The voltage Voc is the voltage between terminals when the output terminal of the solar cell is opened, and the maximum output Pmax is the solar cell with the maximum current × voltage among the IV characteristics between the short circuit current Isc and the open voltage Voc The maximum output operating current Ipm is the current when the output of the solar cell is maximum, the maximum output operating voltage Vpm is the voltage when the output of the solar cell is maximum, and the curve factor FF is the shorting of the maximum output Pmax A value divided by the product of the current Isc and the open circuit voltage Voc, the cell conversion efficiency Eff is a value obtained by dividing the maximum output Pmax by the radiant flux incident on the cell area of the solar cell, the irradiance Ir Is the irradiance of irradiation light, the unit Sun is 1Sun = 1000W / ^{m 2.}

From Table 1 and FIG. 6, the cell measurement efficiency Eff is improved by 0.827% in the characteristic measurement device having the current measurement probe of the first embodiment in comparison with the characteristic measurement device of the prior art; In the characteristic measurement device having the current measurement probe of the embodiment, the cell conversion efficiency Eff is improved by 1.29%. Therefore, according to the characteristic measurement device having the current measurement probe of the present invention, the contact resistance can be stably kept lower, and moreover, the irradiation of the pseudo-sunlight is hardly blocked, so that the solar battery cell It can be seen that the characteristic measurement can be performed without substantially reducing the conversion efficiency of.

The embodiments described above are all illustrative of the present invention and not limiting, and the present invention can be practiced in various other variations and modifications. Accordingly, the scope of the present invention is to be defined only by the appended claims and their equivalents.

INDUSTRIAL APPLICABILITY The present invention is applicable to a measuring device such as a solar simulator provided with a characteristic measurement probe for extracting an electric signal from its current collecting electrode in a state where light is irradiated to a solar battery cell.

DESCRIPTION OF SYMBOLS 10 solar battery cell 10a front surface electrode 11 fixed base 12 support member 13 back surface current terminal 14 back

surface voltage terminal

15, 45

current measurement probe

16, 46

voltage measurement probe

17, 47, 48, 49 fixed

support portion

18 , 51, 52, 53 Connecting

member

19, 50 Mounting frame 19a Groove 20

bolt

21, 54 Vertically moving

member

22, 55 Fixed column member 35 Common probe

Claims

A first arched wire contact made of a conductive metal material and having a resilient shape, and a fixed support for fixing at least one end of the first wire contact, The wire contact extends along the surface electrode of the solar cell to be measured and is opposite to the light receiving surface of the solar cell, and deforms along the surface electrode when pressed against the surface electrode. A probe device for measuring the characteristics of a solar battery cell, which is configured to conduct electricity.
The probe apparatus for measuring the characteristics of a solar cell according to claim 1, wherein the fixed support is configured to fix both ends of the first wire contactor.
The fixed support portion is configured to fix only one end of the first wire contact, and the other end of the first wire contact is configured to be movable in the axial direction. The probe apparatus for characteristic measurement of the photovoltaic cell according to claim 1 characterized by the above-mentioned.
The probe device for measuring the characteristics of a solar cell according to claim 1, wherein the solar cell and the fixed support are configured to be movable relative to each other in order to change the distance between the two. .
The first wire contactor is a current detection terminal, and further includes a second wire contactor that is a voltage detection terminal fixed to the fixed support portion so as to abut on both ends of the surface electrode. The probe device for measuring the characteristics of the solar battery cell according to claim 1.
The probe device for measuring the characteristics of a solar cell according to claim 1, wherein the first wire contact is a common terminal for current detection and voltage detection.
The probe device for measuring the characteristics of a solar cell according to claim 1, wherein the first wire contactor has a width smaller than the width of the surface electrode.
The said 1st wire contactor is comprised from the steel wire which wound the conductive wire around the single conductive wire, the several conductive wire twisted together mutually, or, It is characterized by the above-mentioned. Probe device for measuring the characteristics of solar cells.
The probe apparatus for measuring the characteristics of a solar cell according to claim 8, wherein the conductive wire is made of a wire material of next bronze, bronze, brass, white copper, nickel white or copper.
10. The probe apparatus for measuring the characteristics of a solar cell according to claim 9, wherein the conductive wire is a wire obtained by performing gold plating or nickel plating on the surface of the wire.