CN212932856U

CN212932856U - Photovoltaic electrical property test instrument

Info

Publication number: CN212932856U
Application number: CN202022072630.3U
Authority: CN
Inventors: 胡黎军
Original assignee: Suzhou Terui Light Intelligent Technology Co ltd
Current assignee: Suzhou Terui Light Intelligent Technology Co ltd
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2021-04-09
Anticipated expiration: 2030-09-21

Abstract

The utility model discloses a photovoltaic electrical property test instrument, which comprises a lamp box, the inside top fixed mounting of lamp house has multiunit xenon fluorescent tube, multiunit xenon fluorescent tube side is all fixed and is equipped with the fluorescent tube light screen, reduces the miscellaneous light interference between two or many fluorescent tubes, the lamp house bottom mounting is equipped with the spectrum filter mount pad, the fixed spectrum filter that is equipped with on the spectrum filter mount pad, the spectrum filter includes the glass substrate. The utility model relates to a test instrument belongs to photovoltaic electrical property test technical field. The utility model provides the high performance of equipment has alleviateed the weight of lamp house, through setting up adjustable shading paster, has increased the regional controllability of equipment illumination, increases light source life-span and pulse width's follow-up improvement flexibility.

Description

Photovoltaic electrical property test instrument

Technical Field

The utility model relates to a test instrument, in particular to solar photovoltaic cell module electrical property (electric current, voltage, power, conversion efficiency, irradiation intensity etc.) measuring equipment belongs to photovoltaic electrical property test technical field.

Background

According to the technical development of the solar photovoltaic industry, the market investment and use potential of the solar simulator can be increased from the existing 3000 units to about 5000 to 10000 units, in addition, due to the cost reduction trend of the photovoltaic industry, all equipment manufacturers strive to control the equipment cost, but the requirements of the technical indexes of the nonuniformity of the light source part are higher and higher in consideration of the illumination area size of the simulator, the size of a photovoltaic cell or a tested component, the miniaturization of a photovoltaic device and the like.

By 6 months in 2020, cost control and technical updating of a light source part of a simulator manufacturer at home and abroad are not basically updated, and are basically maintained as follows: the xenon lamp point light source consists of a cooling fan system, a light source reflecting surface (ionization groove), a lamp tube, a spectrum filter and a light path limiting multilayer geometric structure; the problems it causes are as follows:

the light source design is more, the thickness of the light source lamp box is 35 to 80 cm, the operating height of 50 to 200 cm is generally needed by replacing and maintaining the light source space, the height of an optical tunnel matched with the light source is about 4 to 5 meters, and the total field height reaches 5 to 7.5 meters;

because the requirement for the height of the field is too high, the space energy waste of production enterprises is large (the temperature of an air conditioner is controlled, and an independent isolation room is arranged);

the existing simulator has a complex light source design structure, so that operators need to climb to a high altitude of more than 5 meters, and the danger coefficient of ascending of the operators is increased;

the existing light source has great limitations on illumination nonuniformity and illumination area change due to complex structural design, and is reflected in that the maximum improvement of the light source area of the equipment can only be 2600mm to 1400mm, and equipment with more light sources needs to be integrally replaced on a photovoltaic module with an ultra-large area such as BIPV;

due to the limitation of the light source design of the existing equipment, the light source lamp tube cannot be lengthened and thickened, so that the service life of the lamp tube of the light source is not long enough, and the illumination pulse width cannot meet the high-capacitance battery and component test of the emerging technology on the premise of maintaining the long service life of the light source.

In view of this, it is necessary to redesign the structure of the light box, whether to modify the stock equipment or to improve the structure and performance of the light box of the new equipment.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a to having the structure of optical tunnel (darkroom) photovoltaic electrical property tester lamp house for improve equipment's performance, alleviate the weight of lamp house, increase the regional controllability of equipment illumination, increase light source life-span and pulse width's follow-up improvement flexibility.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a photovoltaic electrical property test instrument, includes the lamp house, the inside top fixed mounting of lamp house has the multiunit xenon fluorescent tube, the multiunit xenon fluorescent tube side all is fixed and is equipped with the fluorescent tube light screen, reduces the miscellaneous light interference between two or many fluorescent tubes, the lamp house bottom mounting is equipped with the spectrum filter mount pad, the fixed spectrum filter that is equipped with on the spectrum filter mount pad, the spectrum filter includes the glass substrate, the terminal surface coating has one deck spectrum coating on the glass substrate, the light that the xenon fluorescent tube sent shines downwards through the spectrum filter.

As the utility model discloses a preferred technical scheme, the coating of lamp house inner wall has one deck extinction coating, and lamp house inner wall surface adopts the light trapping structure, prevents that the reflection of light from appearing to cause the miscellaneous light interference.

As a preferred technical scheme of the utility model, the lamp house includes the lamp house curb plate, the lamp house curb plate is fixed through the lamp house supporting seat, the fixed lamp case lid that is equipped with in lamp house curb plate upper end, the xenon fluorescent tube passes through support fixed mounting at lamp case lid lower extreme.

As an optimized technical proposal of the utility model, the bottom end of the light screen of the lamp tube and the bottom end of the xenon lamp tube are positioned on the same horizontal plane.

As a preferred technical scheme of the utility model, the light trap has been seted up on the spectrum filter mount pad, the spectrum filter covers the light trap, the size of light trap needs illumination area to calculate according to the requirement and reachs.

As an optimal technical scheme of the utility model, it is fixed that the spectrum filter passes through the spectrum filter mount pad, and covers the whole bottom of lamp house, the fixed shading paster that is equipped with of glass basement lower extreme, the shading paster covers the shading to the spectrum filter according to required illumination area.

As an optimized technical scheme of the utility model, the distance of shading paster distance glass basement lower surface is 0mm to 10 mm.

As an optimized technical scheme of the utility model, the spectrum coating accords with AM1.5G standard.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides the high performance of equipment has alleviateed the weight of lamp house, through setting up adjustable shading paster, has increased the regional controllability of equipment illumination, increases light source life-span and pulse width's follow-up improvement flexibility.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of the position structure of the xenon lamp tube and the lamp tube shading plate of the present invention;

fig. 3 is a schematic structural diagram of a first embodiment of the mounting base for a middle spectrum filter according to the present invention;

FIG. 4 is a schematic structural diagram of a second embodiment of the mid-spectrum filter mounting base according to the present invention;

fig. 5 is a schematic structural diagram of the middle spectrum filter of the present invention.

In the figure: 1. a lamp box cover; 2. a lamp box supporting seat; 3. a xenon lamp tube; 4. a lamp box side plate; 5. a spectral filter mounting base; 6. a spectral filter; 61. a spectral coating; 62. a glass substrate; 63. shading patches; 7. the lamp tube light shading plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1-3 and 5, the present invention provides a photovoltaic electrical property testing apparatus, which comprises a lamp box, wherein the inner wall of the lamp box is coated with a layer of light absorbing coating, using black coating with 99% of light absorption rate, and the surface of the inner wall of the lamp box adopts a light trapping structure, the surface is concave and reflects, refracts and scatters, or using super reflective surface or lens with a reflection rate of more than 80% as the material inside the lamp box, the filter design can make corresponding changes according to the light absorbing or reflective material adopted by the lamp box, so as to disperse incident light to various angles, the lamp box comprises a lamp box side plate 4, the lamp box side plate 4 is fixed by a lamp box supporting seat 2, the upper end of the lamp box side plate 4 is fixedly provided with a lamp box cover 1, the xenon tubes 3 are fixedly installed at the lower end of the lamp box cover 1 by a bracket, the side edges of a plurality of groups of xenon lamp tubes 3 are all fixedly provided with lamp tube shading plates 7, the bottom ends of the lamp tube shading plates 7 and the bottom ends of the xenon lamp tubes 3 are positioned on the same horizontal plane, stray light interference between two or more lamp tubes is reduced, the bottom end of the lamp box is fixedly provided with a spectrum filter mounting seat 5, a spectrum filter 6 is fixedly arranged on the spectrum filter mounting seat 5, the spectrum filter 6 comprises a glass substrate 62, the upper end surface of the glass substrate 62 is coated with a spectrum coating 61, light emitted by the xenon lamp tubes 3 is irradiated downwards through the spectrum filter 6, the spectrum filter 6 is fixed through the spectrum filter mounting seat 5 and covers the whole bottom end of the lamp box, the lower end of the glass substrate 62 is fixedly provided with shading patches 63, namely, the shading patches (or screen printing, spraying, electroplating or other ways capable of covering the glass surface) are used for achieving the requirements by changing shapes according to the uniformity requirements, the light shielding patch 63 covers and shields the spectrum filter 6 according to the required illumination area, and the distance between the light shielding patch 63 and the lower surface of the glass substrate 62 is 0mm to 10mm, no matter whether the light shielding patch 63 is attached to the spectrum filter 6 or not.

The technical scheme is as follows:

step one, according to the required effective test area, various independent metal black light blocking blocks of the existing equipment are removed, and a novel lamp box shell is designed and manufactured;

designing and manufacturing a spectral filter mounting base 5 according to the required effective test area;

step three, designing and manufacturing a new spectrum and uniformity patch according to the required effective test area, namely, integrating a shading patch 63 (the uniformity patch adopts any scheme such as spraying, pasting, silk-screen printing, electroplating and the like) into a uniformity spectrum filter 6 (the area of the filter can cover the front surface of the whole light source so as to conveniently spray, paste, silk-screen printing, electroplating or make a black matte light-shading pattern on the surface of the filter in other modes, the pattern is not limited by the shape and can be randomly adjusted according to the light source area and the uniformity requirement);

step four, assembling the lamp box;

step five, testing the uniformity and the spectrum matching level in the illumination range according to the required effective test area;

the essence of the technical scheme is that the requirements of the test area and the related uniformity, the service life and the performance of the light source are met by changing the light path range of the original light box and adjusting the light blocking structure or adopting the scheme again to design and manufacture a new light source structure.

The second embodiment is as follows:

as shown in fig. 4, the following is different from the first embodiment: the light trap has been seted up on spectrum filter mount pad 5, and spectrum filter 6 covers the light trap, and the size of light trap needs illumination area to calculate to draw as required, and 62 lower terminal surfaces do not establish 63, only adjusts the illumination scope through the size of light trap, compares with embodiment one, can practice thrift the light filter area, but is not convenient for change the printing opacity effect according to the printing opacity demand.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a photovoltaic electrical property test instrument, its characterized in that, includes the lamp house, the inside top fixed mounting of lamp house has multiunit xenon fluorescent tube (3), multiunit xenon fluorescent tube (3) side all is fixed and is equipped with fluorescent tube light screen (7), the lamp house bottom mounting is equipped with spectrum filter mount pad (5), fixed spectrum filter (6) of being equipped with on spectrum filter mount pad (5), spectrum filter (6) include glass basement (62), glass basement (62) upper end surface coating has one deck spectrum coating (61), the light that xenon fluorescent tube (3) sent shines downwards through spectrum filter (6).

2. A photovoltaic electrical property testing apparatus according to claim 1, wherein: the lamp house inner wall coating has the one deck extinction coating, and lamp house inner wall surface adopts light trapping structure.

3. A photovoltaic electrical property testing apparatus according to claim 1, wherein: the lamp box comprises a lamp box side plate (4), the lamp box side plate (4) is fixed through a lamp box supporting seat (2), a lamp box cover (1) is fixedly arranged at the upper end of the lamp box side plate (4), and the xenon lamp tube (3) is fixedly installed at the lower end of the lamp box cover (1) through a support.

4. A photovoltaic electrical property testing apparatus according to claim 1, wherein: the bottom end of the lamp tube shading plate (7) and the bottom end of the xenon lamp tube (3) are positioned on the same horizontal plane.

5. A photovoltaic electrical property testing apparatus according to claim 1, wherein: the spectrum filter mounting seat (5) is provided with a light hole, the spectrum filter (6) covers the light hole, and the size of the light hole is calculated according to the required illumination area.

6. A photovoltaic electrical property testing apparatus according to claim 1, wherein: the spectrum filter (6) is fixed through the spectrum filter mounting seat (5) and covers the whole bottom end of the lamp box, a shading patch (63) is fixedly arranged at the lower end of the glass substrate (62), and the shading patch (63) covers and shades the spectrum filter (6) according to the required illumination area.

7. The photovoltaic electrical property testing apparatus of claim 6, wherein: the distance between the shading patch (63) and the lower surface of the glass substrate (62) is 0mm to 10 mm.

8. A photovoltaic electrical property testing apparatus according to claim 1, wherein: the spectral coating (61) meets the am1.5g standard.