CN213423419U - Power-on auxiliary tool and battery string detection equipment - Google Patents

Abstract

The utility model discloses an go up electric auxiliary fixtures and battery cluster check out test set relates to solar cell and detects technical field to solve string EL equipment and appear the bad condition of formation of image, influence string EL equipment's discernment precision, cause the problem of reprocessing the manpower loss. The power-on auxiliary tool comprises: the base and be used for with a plurality of last electric structure of many solder strips one-to-one. Each power-on structure comprises a connecting seat, a power-on voltage pin and an elastic piece. The connecting seat is arranged on the base. The upper voltage needle is arranged on the connecting seat in a telescopic way. The elastic piece is arranged on the part of the upper voltage pin extending out of the connecting seat. The battery string detection equipment comprises the power-on auxiliary tool provided by the technical scheme. The utility model provides a go up electric auxiliary fixtures and be used for the battery cluster to detect.

Description

Power-on auxiliary tool and battery string detection equipment

Technical Field

The utility model relates to a solar cell detects technical field, especially relates to an go up electric auxiliary fixtures and battery cluster check out test set.

Background

Abnormal phenomena such as cold joint, hidden crack and the like can be generated in the welding process of the crystalline silicon battery string, so that the battery string is unqualified, and the unqualified battery string needs to be repaired. In the related art, abnormal phenomena such as insufficient solder, hidden crack and the like of a battery string can be timely found through an Electroluminescence (EL) power-on detection device (called string EL device for short) of the battery string, so that the unqualified battery string can be timely repaired.

In the process of detecting the battery strings by using the string EL equipment, the condition of poor imaging generally exists, so that the string EL equipment judges the qualified battery strings to be unqualified, the identification precision of the string EL equipment is seriously influenced, and the labor loss of the production line repair is caused.

Due to the gradual popularization of the technology for automatically detecting the battery string by using the string EL device and the continuous increase of labor cost, artificial intelligence and automation projects will finally replace manual work to perform more efficient operation, and how to thoroughly solve the problem of poor imaging of the string EL device is a key point of the research on the string EL device detection technology in recent years.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an go up electric auxiliary fixtures and battery cluster check out test set to reduce string EL equipment and appear the bad condition of formation of image, improve string EL equipment's recognition accuracy, practice thrift and reprocess the manpower.

In a first aspect, the utility model provides an go up electric auxiliary fixtures for the electricity is gone up to the battery cluster, and the battery cluster has many and welds the area. Should go up electric auxiliary fixtures and include: the base and be used for with a plurality of last electric structure of many solder strips one-to-one. Each power-on structure comprises a connecting seat, a power-on voltage pin and an elastic piece. The connecting seat is arranged on the base. The upper voltage needle is arranged on the connecting seat in a telescopic way. The elastic piece is arranged on the part of the upper voltage pin extending out of the connecting seat.

Under the condition of adopting above-mentioned technical scheme, go up the probe telescopic and locate on the connecting seat, the elastic component is located on the part that the probe stretches out the connecting seat for go up the probe and contact with the solder strip after, go up the probe and drive the elastic component shrink, the elastic component provides elasticity to going up the probe to the solder strip direction under self elasticity effect, make every go up the probe and contact inseparabler with the solder strip that corresponds, guarantee to electrically conduct evenly. Moreover, even when the distance between the end part of each upper voltage needle and the corresponding welding strip is different, after each upper voltage needle is contacted with the welding strip, the contraction quantity of the upper voltage needle with the smaller distance to the corresponding welding strip is larger, and the contraction quantity of the upper voltage needle with the larger distance to the corresponding welding strip is smaller, so that each welding strip can be ensured to be closely contacted with the corresponding upper voltage needle. In addition, the power-on structure corresponds to the plurality of welding strips one to one, so that each welding strip has the corresponding power-on structure, and the plurality of welding strips on the battery string are completely electrified. Based on this, the utility model provides a go up electric auxiliary fixtures and assist cluster EL equipment and examine time measuring, each goes up the contact with each voltage needle can take in close contact with corresponding welding for many on the battery cluster weld the area all and switch on completely simultaneously, consequently, when utilizing cluster EL equipment to detect abnormal phenomena such as rosin joint, latent splitting, go up electric auxiliary fixtures and can reduce the discernment error rate of cluster EL equipment, improve the discernment precision of cluster EL equipment, practice thrift the manpower of reprocessing.

Additionally, when using for a long time the utility model provides a go up the electric auxiliary fixtures after, even should go up the electric auxiliary fixtures and warp, the tip that leads to each to go up the contact pin is different with the distance that corresponds between the welding area, the utility model provides a go up the electric auxiliary fixtures and also can guarantee that many on the battery cluster weld the area all with last contact pin in close contact with, consequently, the utility model provides a go up electric auxiliary fixtures job stabilization nature height, long service life.

In a possible implementation mode, the connecting seat is provided with a mounting hole, and the upper voltage pin is mounted in the mounting hole. After the upper voltage needle is contacted with the welding strip, one part of the upper voltage needle can extend into the mounting hole, so that the upper voltage needle can stretch out and draw back on the connecting seat.

In a possible implementation, the connecting seat has a wear-resistant layer, and the wear-resistant layer is arranged on the inner wall of the mounting hole.

Under the condition of adopting above-mentioned technical scheme, the wearing layer makes the inner wall of last voltage needle and mounting hole be difficult for appearing wearing and tearing and the bite phenomenon, even long-time back of using, goes up voltage needle and also can smoothly stretch out and draw back in the mounting hole, guarantees that many on the battery cluster weld the area all with last voltage needle in close contact with. Therefore, the utility model provides an it is high to go up electric auxiliary fixtures job stabilization nature, long service life.

In one possible implementation, the wear resistant layer is a nylon layer. The nylon layer has good wear resistance and small surface friction coefficient, so that the upper voltage needle and the nylon layer are not easily worn, and the friction force is small, so that the upper voltage needle can smoothly stretch out and draw back in the mounting hole even after long-time use.

In a possible implementation manner, each of the above-mentioned power-on structures further includes a linear bearing disposed in the mounting hole, and one end of the upper voltage pin is mounted in the linear bearing. Based on this, the utility model provides an go up the electric auxiliary tool dress in the course of the work, go up the frictional force between voltage needle and the linear bearing for rolling frictional force for not only difficult wearing and tearing between last voltage needle and the linear bearing, frictional force is little moreover, even long-time the back of using, goes up the voltage needle and also can smoothly stretch out and draw back in the linear bearing.

In a possible implementation manner, the mounting hole is a through hole penetrating through the connecting seat. The tail end of the upper voltage pin penetrates through the through hole. Each power-on structure further includes a stopper. The limiting piece is located on one side of the through hole. The limiting piece is arranged at the tail end of the upper voltage pin. The limiting piece is detachably connected with the upper voltage pin.

Under the condition of adopting the technical scheme, the tail end of the upper voltage needle penetrates through the through hole, and the power supply connecting wire can be arranged at the tail end of the upper voltage needle. The limiting part is arranged at the tail end of the upper voltage pin, and the limiting part can limit the tail end of the upper voltage pin to penetrate through the through hole, so that the elastic part can eject the upper voltage pin out of the through hole under the action of self elasticity after the welding strip is separated from the upper voltage pin. In addition, the limiting part is detachably connected with the upper voltage pin, and the upper voltage pin, the limiting part and the connecting seat can be installed or detached. And when connecting locating part and last voltage needle, can press from both sides the connector of power connecting wire between locating part and last voltage needle to the convenience is with last voltage needle and power intercommunication.

In one possible implementation, the upper voltage needle includes a needle shaft and a needle head provided on the needle shaft. The radial length of the needle decreases in a direction away from the needle shaft. The end of the needle rod far away from the needle head extends into the connecting seat, and the elastic element is sleeved on the part of the needle rod extending out of the connecting seat.

Under the condition of adopting above-mentioned technical scheme, the radial length of syringe needle reduces along the direction of keeping away from the needle bar for the area of contact of syringe needle and solder strip is less. When the contact area of the needle head and the welding strip is small, the pressure applied on the welding strip is large, so that the welding strip is ensured to be in close contact with the needle head.

In a possible implementation manner, the power-on auxiliary tool further includes a plurality of fasteners. Each fastener detachably secures the corresponding connecting seat to the base. When the power-on structure needs to be replaced or maintained, the corresponding power-on structure is detached from the base through the fastening piece, and the corresponding power-on structure is replaced or maintained.

In a possible implementation manner, the base is provided with a sliding groove penetrating through the base. Each fastener extends into the sliding groove to fix the connecting seat on the base. The base is also provided with a clamping groove positioned on one side of the sliding groove. The clamping groove is parallel to the sliding groove. The connecting seat that each power-on structure includes is blocked in the draw-in groove.

Adopt under the condition of above-mentioned technical scheme, every fastener stretches into the sliding tray and fixes the connecting seat on the base. Based on this, each connecting seat can move along the sliding groove to fix on the base through the fastener, in order to adjust the distance between two adjacent power on structures. Based on this, when the battery string is detected by the string EL device, the power-up structures corresponding to the solder strips can be adjusted according to the pitch of the solder strips led out from the battery string to be detected. And moreover, the power-on structure on the base can be increased or decreased according to the number of the welding strips on the battery string, so that the power-on auxiliary tool can be suitable for detecting the battery strings with different specifications. In addition, the base is further provided with a clamping groove located on one side of the sliding groove, the clamping groove is parallel to the sliding groove, and the connecting seats included by the power-on structures are clamped in the clamping grooves. The connecting seat card can restrict the connecting seat and remove along the direction of perpendicular to sliding tray in the draw-in groove, makes the adjusting connecting seat position more convenient to the stability of electricity auxiliary fixtures is gone up in the improvement.

In a second aspect, the utility model also provides a battery cluster check out test set. The battery string detection device comprises the power-on auxiliary tool described in the first aspect or any one of the possible implementation manners of the first aspect.

The embodiment of the utility model provides a beneficial effect that the battery cluster check out test set that second aspect or any possible implementation of second aspect provided is the same with the beneficial effect of the last electric auxiliary fixtures that first aspect or any possible implementation described, and the here is not repeated.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is a schematic view of a battery string detection device in an embodiment of the present invention;

FIG. 2 is a schematic diagram of a prior art battery string;

fig. 3 is a schematic diagram of the battery string detection device according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a connection between a powered copper strip and a string EL device in a related art;

FIG. 5 is a schematic diagram of a powered copper bar in the related art;

fig. 6 is a schematic view illustrating connection between the power-on auxiliary tool and the string EL device in the embodiment of the present invention;

fig. 7 is a schematic view of an electric auxiliary tool in an embodiment of the present invention;

fig. 8 is a schematic view of another power-on auxiliary tool in the embodiment of the present invention;

fig. 9 is another view of another power-on auxiliary tool in an embodiment of the present invention;

fig. 10 is a schematic diagram of a power-on structure in an embodiment of the present invention;

fig. 11 is an exploded view of the power-on structure in the embodiment of the present invention;

FIG. 12 is an enlarged view taken at A in FIG. 1;

fig. 13 is a schematic view of the connection between the power-on structure and the fastening member in the embodiment of the present invention.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Abnormal phenomena such as cold joint, hidden crack and the like can be generated in the welding process of the crystalline silicon battery string, so that the battery string is unqualified, and the unqualified battery string needs to be repaired. In the related technology, abnormal phenomena such as insufficient solder, hidden crack and the like of the battery string can be found in time through the string EL device, so that unqualified battery strings can be repaired in time. However, in the process of detecting the battery strings, poor imaging generally exists in the string EL device, so that the string EL device judges the qualified battery strings as unqualified ones, the identification precision of the string EL device is seriously influenced, and the labor loss of the production line repair is caused.

With the popularization of the technology for automatically detecting the battery string by the string EL device and the continuous increase of labor cost, artificial intelligence and automation projects will finally replace manual work to perform more efficient operation, and how to thoroughly solve the problem of poor imaging of the string EL device is a key point of the research on the detection technology of the string EL device in recent years. The inventor finds that when the battery string is detected, due to the fact that the plurality of welding strips on the battery string cannot be in contact with the electrifying tool at the same time, the plurality of welding strips cannot be conducted completely at the same time, the welding strips with poor contact at the moment of electrifying can generate an ignition phenomenon, poor imaging at the head and the tail of the battery string is caused, and an image displayed by poor imaging is the same as an image displayed after the battery string is subjected to false welding, so that when the string EL equipment is used for detecting qualified battery strings, the string EL equipment can judge that the qualified battery strings are unqualified after poor imaging.

Fig. 1 illustrates a schematic diagram of a battery string detection device provided by an embodiment of the present invention. As shown in fig. 1, the embodiment of the present invention provides a battery string detection device, which is also called a string EL device, including an upper electric auxiliary tool a. The power-on auxiliary tool A enables a plurality of welding strips on the battery string to be in contact with the power-on tool at the same time, so that the plurality of welding strips on the battery string are completely electrified at the same time, the condition of poor imaging is reduced, the identification precision of the string EL equipment is improved, and the repair manpower is saved.

Fig. 2 illustrates a schematic diagram of a battery string in the prior art. As shown in fig. 2, the battery string B has a plurality of solder ribbons B1, and both ends of the plurality of solder ribbons B1 protrude from the battery string B.

In practical application, as shown in fig. 1, the battery string detection device further includes a mechanical arm C, a fixing seat D, a suction cup E, a lifting cylinder F, an upper pressing plate G, an imaging module, a controller and a power supply. Lifting cylinder F sets up on fixing base D. And the mechanical arm C is fixed at the top end of the lifting cylinder F. And the sucker E and the upper pressing plate G are arranged on the mechanical arm C.

As shown in fig. 1, the suction cup E is used for sucking the battery string B, fixing the battery string B on the mechanical arm C, and positioning the solder strip B1 of the battery string B on the side of the upper press plate G close to the power-on auxiliary tool a. The power-on auxiliary tool A is fixed on the fixing seat D and is positioned under the upper pressure plate G. And the lifting cylinder F is used for adjusting the distance between the mechanical arm C and the fixing seat D, so that the upper pressure plate G and the power-on auxiliary tool A clamp a welding strip B1 of the battery string B.

In practical application, the fixing base can be fixed, and the lifting cylinder drives the mechanical arm to move towards the lower fixing base, so that the upper pressing plate is contacted with the power-on auxiliary tool. The mechanical arm can be fixed without a fixed seat, the power-on auxiliary tool is arranged at the bottom end of the lifting cylinder, and the lifting cylinder drives the power-on auxiliary tool to move towards the mechanical arm, so that the upper pressing plate is in contact with the power-on auxiliary tool.

As shown in FIG. 1, the upper pressure plate G and the power-on auxiliary tool A are arranged in two, and the two power-on auxiliary tools A are connected with a power supply. The following takes a crystalline silicon battery string as an example to describe an application method of the battery string detection device provided by the embodiment of the present invention.

As shown in fig. 1, a crystalline silicon cell string B is adsorbed on a chuck E, welding strips B1 at two ends of the crystalline silicon cell string B are located below two upper pressing plates G, and then a lifting cylinder F drives a mechanical arm C to move in the direction of the upper electric auxiliary tool a (downward movement in fig. 1), so that the crystalline silicon cell string B and the upper pressing plates G move together along with the mechanical arm C in the direction of the upper electric auxiliary tool a until the welding strips B1 of the crystalline silicon cell string B are pressed by the upper electric auxiliary tool a and the upper pressing plates G.

Fig. 3 illustrates an electrical schematic diagram of a battery string detection device in an embodiment of the present invention. As shown in fig. 3, the upper press plate G and the power-on auxiliary tool a clamp the solder strip B1, and each solder strip B1 contacts the power-on auxiliary tool a. Therefore, when the power-on auxiliary tool A is connected with a power supply, the power-on auxiliary tool A can be used for powering on the solder strip B1, so that the current in the solder strip B1 forms a loop. And the imaging modules such as the image sensor and the like collect the battery string image in the electroluminescent state and transmit the image to the controller, and the controller identifies the image and judges whether the battery string B is qualified or not.

Fig. 4 is a schematic diagram illustrating connection of a power-on copper bar to a string EL device in the related art. Fig. 5 illustrates a schematic diagram of a powered copper bar in the related art. As shown in fig. 4 and 5, in the related art, the power-on auxiliary tool a is used for assisting the power-on copper bar H to cooperate with the upper press plate G to clamp the plurality of solder strips B1, so as to power on the plurality of solder strips B1. A plurality of mounting holes are formed in the electrifying copper strip H, and the electrifying copper strip H is connected below the lifting cylinder F through the mounting holes. The electrifying copper strip H is a whole copper strip and is connected with a power supply, so that the electrifying copper strip H is electrified. During detection, the lifting cylinder F drives the electrified copper strip H to move upwards, so that the electrified copper strip H and the upper pressing plate G clamp the plurality of welding strips B1. However, after the welding strip is used for a period of time, the electrified copper strip H is easy to deform after being stressed for many times, so that a plurality of welding strips B1 cannot be contacted with the electrified copper strip H at the same time, and the condition of poor imaging is caused. Table 1 shows the imaging cold joint quantity of the power-on auxiliary tool for assisting power-on of the power-on copper bar.

Table 1 imaging rosin joint amount statistical table for assisting use of electrifying copper bar electrifying by electrifying auxiliary tool

As can be seen from table 1, after the power-on auxiliary tool assists the power-on copper bar power-on, the poor imaging occupancy rate of the serial EL device is up to more than 80%, which has seriously affected the identification accuracy of the serial EL device.

To the above problem, the embodiment of the utility model provides an go up electric auxiliary fixtures, many on can realizing the battery cluster that the aforesaid says weld the area simultaneously with go up the electric frock contact. The electrification auxiliary tool is applied to the battery string detection equipment in the front, and can be used for solving the problems that poor imaging of string EL equipment in the related technology is caused, the recognition accuracy of the string EL equipment is low, and the repair labor loss is caused.

Fig. 6 illustrates an exemplary connection diagram of the power-on auxiliary tool and the string EL device in the embodiment of the present invention. Fig. 7 and fig. 8 illustrate two kinds of schematic structural diagrams of the power-on auxiliary tool in the embodiment of the present invention. As shown in fig. 6 and 7, the power-on auxiliary tool includes: a base 100 and a plurality of power up structures 200 for powering up the battery.

As shown in fig. 6 and 7, the base 100 may be an iron base, an aluminum base, or a wood base, but is not limited thereto, as long as the strength requirement for carrying a plurality of power-on structures 200 is satisfied. The base 100 may have various shapes such as, but not limited to, a rectangular parallelepiped, a cylinder, or a profile body.

In practical application, the base is further provided with a connecting portion connected with the battery string detection device, and the connecting portion can be connected to the fixing base through the bolt assembly. For example, the connecting portion is a through hole, a threaded hole is formed in the fixing base, and the bolt penetrates through the through hole to be matched with the threaded hole, so that the connecting portion can be fixed on the fixing base.

As shown in fig. 6 and 7, each of the above-mentioned power-on structures 200 includes a connecting socket 210, a power-on pin 220, and an elastic member 230. The connecting socket 210 is provided on the base 100 to connect the power-on structure 200 to the base 100. The upper voltage pin 220 is telescopically disposed on the connection seat 210, the elastic member 230 is disposed on a portion of the upper voltage pin 220 extending out of the connection seat 210, and when the upper voltage pin 220 contacts the solder ribbon B1, the upper voltage pin 220 is telescoped along the connection seat 210 to drive the elastic member 230 to telescope, so that the elastic member 230 can provide elastic force for the upper voltage pin 220. The upper voltage pin 220 may be connected to a power source such that the upper voltage pin 220 is charged.

The number of the power-on structures can be different from or the same as the number of the solder strips of the detected battery string.

When the number of the power-on structures can be different from the number of the solder strips of the detected battery string, the number of the power-on structures can be smaller than the number of the solder strips of the detected battery string, and at least one power-on structure can power on two or more solder strips. For example: as shown in fig. 6 and 7, the power-on structures 200 are provided in three, and when the detected battery string B has nine solder ribbons B1, each power-on structure 200 corresponds to three solder ribbons B1. During detection, the distance between the electrifying structure 200 and the upper pressing plate G is adjusted by the lifting cylinder F, so that the electrifying structure 200 and the upper pressing plate G clamp a plurality of solder strips B1, and the elastic piece 230 enables the electrifying structure 200 to compress the solder strips B1. And after the upper electric tool deforms, the distances between the top ends of the three upper electric structures 200 and the solder strips B1 are different, and the upper electric tool can also press a plurality of solder strips B1. Table 2 shows the use the embodiment of the utility model provides an go up electric auxiliary fixtures formation of image rosin volume.

TABLE 2 USE the embodiment of the utility model provides an it makes statistics of to go up electric auxiliary fixtures formation of image rosin volume

As can be seen from table 2, after the power-on auxiliary tool provided by the embodiment of the utility model is used, the imaging ratio of the series EL equipment is reduced to 8.77%, which is obviously improved relative to 80%.

When the number of the power-on structures is the same as the number of the welding strips of the detected battery string, the plurality of power-on structures correspond to the plurality of welding strips one to one, so that one power-on structure supplies power to one welding strip. For example: fig. 8 illustrates another schematic diagram of the power-on auxiliary tool in the embodiment of the present invention. Fig. 9 illustrates another view of another power-on auxiliary tool in an embodiment of the present invention. As shown in fig. 8 and 9, when the detected battery string B has nine solder ribbons B1, nine power-up structures 200 are provided, one solder ribbon B1 for each power-up structure 200. After the deformation of last electric frock, lead to nine top and the welding strip between B1 of going up electric structure 200 different, the utility model provides a go up electric auxiliary fixtures and also can compress tightly many and weld area B1 to go up electric structure 200 and many and weld area B1 one-to-one, for one go up electric structure 200 and correspond many and weld the mode of taking B1, go up electric structure 200 and can more accurately with weld area B1 in close contact with.

By taking a detection crystalline silicon cell string as an example, the application method of the power-on auxiliary tool provided by the embodiment of the utility model is explained. The number of the upper voltage pins is the same as that of the welding strips of the crystalline silicon cell string, and the upper voltage pins correspond to the welding strip positions of the crystalline silicon cell string one to one.

As shown in fig. 1, the crystalline silicon cell string B is fixed on the mechanical arm C through the suction cup E, and the lifting cylinder F drives the crystalline silicon cell string B to move toward the upper voltage needle 220. As shown in fig. 3, after the crystalline silicon battery string B descends to a certain height, the upper pressing plate G and the upper auxiliary tool a clamp the solder ribbon B1 of the crystalline silicon battery string B. Each solder ribbon B1 corresponds to one upper voltage pin 220. After the solder ribbon B1 contacts the upper contact pins 220, the upper contact pins 220 drive the elastic members 230 to contract, and the elastic members 230 provide an elastic force to the upper contact pins 220 in the direction of the solder ribbon B1 under the action of their own elastic force. When the distances between each upper voltage needle 220 and the corresponding solder strip B1 are different, after each upper voltage needle 220 is contacted with the solder strip B1, the contraction amount of the upper voltage needle 220 with the smaller distance from the corresponding solder strip B1 is larger, and the contraction amount of the upper voltage needle 220 with the larger distance from the corresponding solder strip B1 is smaller, so that each solder strip B1 can be ensured to be tightly contacted with the corresponding upper voltage needle 220, and therefore, after a plurality of solder strips B1 of the crystalline silicon battery string B are simultaneously conductive, the condition that poor imaging occurs in the string EL device is solved, the identification precision of the string EL device is improved, and the repair labor is saved.

From the above, as shown in fig. 8 and 9, the embodiment of the utility model provides a go up electric auxiliary fixtures, go up the probe 220 telescopic and locate on connecting seat 210, elastic component 230 is located on the part that the probe 220 stretches out connecting seat 210, make go up probe 220 and weld the back of taking B1 contact, go up probe 220 and drive elastic component 230 shrink, elastic component 230 provides elasticity to probe 220 to welding area B1 direction under self elastic action, make every go up probe 220 and the contact of the welding area B1 that corresponds inseparabler, guarantee to electrically conduct evenly. Moreover, even when the distance between the end of each upper probe 220 and the corresponding solder strip B1 is different, after each upper probe 220 contacts the solder strip B1, the upper probe 220 having a smaller distance from the corresponding solder strip B1 contracts by a larger amount, and the upper probe 220 having a larger distance from the corresponding solder strip B1 contracts by a smaller amount, so that each solder strip B1 can be ensured to be in close contact with the corresponding upper probe 220. In addition, the power-on structure 200 corresponds to the plurality of solder strips B1 one by one, so that each solder strip B1 has the corresponding power-on structure 200, thereby ensuring that the plurality of solder strips B1 on the battery string B are all completely electrified. Based on this, the utility model provides an it examines time measuring to go up supplementary cluster EL equipment of electric frock, and each goes up the contact between piezo-pin 220 can take B1 in close contact with corresponding welding for many on the battery cluster B weld and take B1 all to switch on completely simultaneously, consequently, when utilizing string EL equipment to detect abnormal phenomena such as rosin joint, hidden split, it can reduce the discernment error rate of string EL equipment to go up electric supplementary frock, improves the discernment precision of string EL equipment, practices thrift the manpower of reprocessing.

In addition, as shown in fig. 8 and fig. 9, when using for a long time the embodiment of the utility model provides an after the power-on auxiliary fixtures, even should go up the power-on auxiliary fixtures and warp, lead to the distance between each last contact pin 220 and the corresponding solder strip B1 different, the embodiment of the utility model provides a power-on auxiliary fixtures also can guarantee that many on the battery cluster B weld the strip B1 and all with last contact pin 220 in close contact with, from this it can to see, the utility model provides a power-on auxiliary fixtures job stability is high, long service life.

As a possible implementation manner, fig. 10 illustrates an electrical schematic diagram in the embodiment of the present invention. Fig. 11 illustrates an exploded view of the power-on structure in an embodiment of the present invention. As shown in fig. 10 and 11, the connecting socket 210 is formed with a mounting hole 211, and the upper voltage pin 220 is mounted in the mounting hole 211. When the upper pogo pin contacts the solder ribbon B1, a portion of the upper pogo pin 220 may extend into the mounting hole 211, so that the upper pogo pin 220 may extend and contract on the connection socket 210. The mounting hole 211 may be the same size as the portion of the upper voltage pin 220 extending into the mounting hole 211, so as to make the upper voltage pin 220 move more stably in the mounting hole 211, and the mounting hole 211 may be a groove or a through hole penetrating through the connection seat 210. When the mounting hole 211 is a groove, a portion of the upper voltage pin 220 extends into the groove, and a portion of the upper voltage pin 220 exposed from the groove is connected to a power source, so that the upper voltage pin 220 is telescopically disposed on the connecting base 210. In order to prevent the upper voltage pin 220 from sliding out of the groove under the elastic force of the elastic member 230, a locking member may be disposed on a portion of the upper voltage pin 220 located in the groove, so that the upper voltage pin 220 can move in the groove and the upper voltage pin 220 does not slide out of the groove.

As shown in fig. 10 and 11, when the mounting hole 211 is a through hole penetrating the connecting socket 210, the tail end of the upper voltage pin 220 penetrates the through hole. Fig. 12 illustrates an enlarged view at a in fig. 1. As shown in fig. 12, each of the power-on structures 200 may further include a limiting member 240, the limiting member 240 is located at one side of the through hole, and the limiting member 240 is disposed at the tail end of the upper voltage pin 220, so that the upper voltage pin 220 is telescopically disposed on the connection seat 210. In practice, the power connection line may be connected to the rear end of the upper voltage pin 220. The limiting member 240 can limit the tail end of the upper voltage pin 220 from passing through the through hole, so as to prevent the elastic member 230 from ejecting the upper voltage pin 220 out of the through hole under the action of its own elastic force after the solder strip B1 is separated from the upper voltage pin 220.

In an alternative, as shown in fig. 12, the stopper 240 is detachably connected to the upper voltage pin 220. The stopper 240 and the upper voltage pin 220 may be detachably connected together in various ways. For example, a threaded hole is formed in the upper voltage pin 220, a threaded post is formed in the stopper 240, and the threaded post and the threaded hole are in threaded connection, so that the stopper 240 and the upper voltage pin 220 can be detachably connected together. The stopper 240 is detachably connected to the upper voltage pin 220, so that the upper voltage pin 220 and the stopper 240 can be mounted on or dismounted from the connecting socket 210. In addition, in practical application, when the limiting member 240 and the upper voltage pin 220 are connected, the connector of the power connection line can be clamped between the limiting member 240 and the upper voltage pin 220, so that the upper voltage pin 220 is conveniently communicated with a power supply, and the power supply is more conveniently connected. For example, when the upper pin 220 and the stopper 240 are screwed through the screw post and the screw hole, the circular connector of the power connection line can be sleeved on the screw post, and then the screw post and the screw hole are screwed, so as to connect the upper pin 220 to the power source.

As a possible implementation, as shown in fig. 10 and 11, the upper voltage needle 220 includes a needle shaft 221 and a needle head 222 provided on the needle shaft 221. The needle shaft 221 and the needle 222 can be integrated or separated. For convenience of electrical conduction, the needle shaft 221 and the needle 222 may be made of 6061 aluminum alloy or red copper, but are not limited thereto. The radial length of the needle 222 decreases in a direction away from the needle shaft 221 so that the area of the needle 222 decreases toward a side of the solder ribbon B1, i.e., so that the contact area of the needle 222 with the solder ribbon B1 decreases. There are many forms in setting, for example: the radial length of the needle 222 gradually decreases in a direction away from the needle shaft 221, and a convex portion may be provided in a direction toward the solder ribbon B1 from the needle 222, and the convex portion may be tapered, spherical or ridged, so that the area of the convex portion on the side toward the solder ribbon B1 is smaller than the area of the needle 222 on the side toward the solder ribbon B1, but is not limited thereto.

As shown in fig. 10 and 11, since the smaller the force-receiving area is, the larger the pressure is, in the case where the pressures are the same. Based on this, when the needle head 222 is in contact with the solder ribbon B1, under the same pressing force, the contact area between the needle head 222 and the solder ribbon B1 is reduced, so that the pressure between the needle head 222 and the solder ribbon B1 is increased, thereby ensuring that the solder ribbon B1 is in close contact with the needle head 222.

As shown in fig. 10 and 11, an end of the needle shaft 221 away from the needle 222 extends into the connecting seat 210, and the elastic member 230 is sleeved on a portion of the needle shaft 221 extending out of the connecting seat 210. The elastic member 230 may be a spring. The inner diameter of the spring is larger than the diameter of the mounting hole 211 and is smaller than the minimum length of the needle 222 on the side facing the spring, so that the spring is located between the needle 222 and the coupling holder 210. After the needle 222 contacts the solder strip B1, the needle 222 moves toward the connecting base 210, so that the needle shaft 221 extends into the mounting hole 211. During the movement of the needle 222 towards the connecting seat 210, the distance between the needle 222 and the connecting seat 210 becomes shorter, so that the spring is compressed, and the spring provides elasticity to the needle 222 towards the solder strip B1 under the action of the elasticity of the spring.

In an alternative, as shown in fig. 10 and 11, the connection holder 210 has a wear-resistant layer formed on an inner wall of the mounting hole 211. The connection seat 210 itself can be made of wear-resistant material, so that the connection seat 210 is located on the inner wall of the mounting hole 211 to form a wear-resistant layer; the wear-resistant material may be coated on the inner wall of the mounting hole 211 to form a wear-resistant layer, but is not limited thereto.

As shown in fig. 10 and 11, the inventor found that after the upper voltage pin 220 is extended and retracted in the mounting hole 211 for multiple times, the upper voltage pin 220 and the inner wall of the connecting seat 210 in the mounting hole 211 are worn, so that the jamming phenomenon occurs.

As shown in fig. 10 and fig. 11, from last can know, the wearing layer makes the inner wall of last voltage needle 220 and mounting hole 211 be difficult for appearing wearing and tearing and the phenomenon of blocking, even long-time back of using, goes up voltage needle 220 and also can stretch out and draw back smoothly in mounting hole 211, guarantees that many on the battery cluster B weld tape B1 all with last voltage needle 220 in close contact with, makes the utility model provides an it is high to go up electric auxiliary fixtures job stabilization nature, long service life.

In an alternative, as shown in fig. 10 and 11, the wear layer is a nylon layer. The material of the connection seat 210 may be selected to be nylon material, so that the connection seat 210 is located on the inner wall of the mounting hole 211 to form a wear-resistant layer. The nylon layer has good wear resistance and small surface friction coefficient, in practical application, the upper voltage needle 220 is conductive conveniently, the upper voltage needle 220 is made of metal, the upper voltage needle 220 and the nylon layer are not easy to wear, the friction force is small, and the upper voltage needle 220 can also smoothly stretch in the mounting hole 211 even after being used for a long time. Table 3 shows the use the embodiment of the utility model provides an go up electric auxiliary fixtures formation of image rosin volume.

TABLE 3 the embodiment of the utility model provides a go up electric auxiliary fixtures formation of image rosin volume statistics

Can know by table 3, use the embodiment of the utility model provides an after going up electric auxiliary fixtures, string EL equipment formation of image is bad to be accounted for and has been reduced to 0.02%, and the effect that reaches is stable, and the bad problem of formation of image is solved fundamentally.

In an alternative, as shown in fig. 10 and 11, each of the above-described power-on structures 200 further includes a linear bearing disposed within the mounting hole 211. The linear bearing may be mounted in the mounting hole 211 by means of bonding, welding, or detachable coupling, but is not limited thereto. One end of the upper voltage pin 220 is installed in the linear bearing. Linear bearings can be of various specifications, for example: KBS linear bearing, but is not limited thereto.

As shown in fig. 10 and 11, when the upper voltage pin 220 is extended and contracted in the linear bearing, the frictional force between the upper voltage pin 220 and the linear bearing is a rolling frictional force, so that the upper voltage pin 220 and the linear bearing are not easily worn but have a small frictional force, and the upper voltage pin 220 can be smoothly extended and contracted in the linear bearing even after a long-term use.

It can be understood that when the hole wall of the mounting hole is formed with the wear-resistant layer, the linear bearing can also be arranged in the mounting hole, so as to reduce the mutual friction between the linear bearing and the hole wall by using the wear-resistant layer.

As a possible implementation manner, fig. 13 illustrates a schematic diagram of connection between the upper electric structure and the fastener in the embodiment of the present invention. As shown in fig. 13, the power-on auxiliary tool a further includes a plurality of fasteners 300. Each fastener 300 detachably fixes the corresponding connection holder 210 to the base 100. The fastener 300 and the coupling seat 210 may be detachably fixed to the base 100 in various ways, for example: the fastening member 300 is a bolt, and the connecting seat 210 is provided with a threaded hole on a side facing the fastening member 300. A bolt extends through base plate 100 from a side of base plate 100 remote from attachment base 210 to be threadedly coupled to a threaded hole of attachment base 210, thereby detachably securing fastener 300 and attachment base 210 to base plate 100. In practical application, as shown in fig. 11, the threaded hole is perpendicular to the mounting hole 211, and the threaded hole is not communicated with the mounting hole 211, so as to avoid the increase of friction force on the inner wall of the mounting hole 211 after the threaded hole is communicated with the mounting hole 211, thereby affecting the relative movement between the upper voltage pin 220 and the connecting seat 210. When the power-on structure 200 needs to be replaced or repaired, the corresponding power-on structure 200 can be detached from the base 100 by the fastener 300, and the corresponding power-on structure 200 can be replaced or repaired.

In an alternative manner, as shown in fig. 8 and 9, the base 100 is provided with a sliding slot 110 penetrating through the base 100, and the plurality of power-on structures 200 are distributed along a length direction of the sliding slot 110. Each fastener 300 extends into the sliding groove 110 to fix the connection holder 210 to the base 100, so as to adjust the distance between two adjacent upper power structures 200. The fastener 300 may be a bolt that is screwed with the screw hole of the connection block 210 through the sliding groove 110, and may fix the connection block 210 to the base 100. When the battery string B is detected by the string EL device, the power-up structure 200 corresponding to the solder ribbons B1 can be adjusted according to the pitch of the solder ribbons B1 led out from the battery string B to be detected. For example: when another battery string B needs to be detected after the string EL device detects the battery string B, the pitch of the adjacent solder ribbons B1 of the battery string B that needs to be detected is different from the pitch of the adjacent solder ribbons B1 of the battery string B that has already been detected, resulting in a failure to correspond the position of the power-up structure 200 to the battery string B that needs to be detected. At this time, the fastener 300 can be loosened, so that the upper electric structure 200 moves along the sliding groove 110, and after the upper electric structure 200 is moved to the corresponding position of the solder ribbon B1, the upper electric structure 200 is fixed by the fastener 300. Therefore, the utility model provides an it is wide that power-on auxiliary fixtures application scope.

In addition, as shown in fig. 8 and 9, when another battery string B needs to be tested after the string EL device tests the battery string B, the number of the solder ribbons B1 of the battery string B needing to be tested is greater than the number of the solder ribbons B1 of the battery string B already tested, and thus the number of the power-on structures 200 is less than the number of the solder ribbons B1 of the battery string B needing to be tested, the number of the power-on structures 200 can be increased, the fasteners 300 can be inserted into the sliding grooves 110 to be connected with the connecting seats 210, and the added power-on structures 200 can be added to the power-on auxiliary tool a. Therefore, the utility model provides an it can be according to the quantity of welding strip B1 on the battery cluster B to go up electric auxiliary fixtures, increases fast or reduces last electric structure 200 on the base 100.

In an alternative mode, as shown in fig. 8, the base 100 further defines a slot 120 located at one side of the sliding slot 110, and the slot 120 is parallel to the sliding slot 110. The base 100 may be provided with two blocking rods parallel to the sliding groove 110 at a side close to the connecting seat 210, and the two blocking rods and the base 100 form a clamping groove 120; it is also possible to form the locking groove 120 by recessing the middle portion of the side of the base 100 close to the connecting socket 210. Each power-on configuration 200 includes a connector receptacle 210 that is received within the card slot 120. As shown in fig. 8, the height of the connecting seat 210 is the same as the height of the slot 120, and the connecting seat 210 is clamped in the slot 120, so that the connecting seat 210 can be limited from moving in the direction perpendicular to the sliding groove 110, the position of the connecting seat 210 can be adjusted more conveniently, and the stability of the power-on auxiliary tool is improved.

In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. The utility model provides a power-on auxiliary tool which characterized in that for the battery cluster is electrified, the battery cluster has many solder strips, power-on auxiliary tool includes: the base and the plurality of electrifying structures are used for corresponding to the plurality of welding strips one by one; each of the power-up structures includes:

the connecting seat is arranged on the base;

the upper voltage needle is arranged on the connecting seat in a telescopic manner;

and the elastic piece is arranged on the part of the upper voltage needle extending out of the connecting seat.

2. The power-on auxiliary tool according to claim 1, wherein the connecting seat is provided with a mounting hole, and the upper voltage pin is mounted in the mounting hole.

3. The power-on auxiliary tool according to claim 2, wherein the connecting seat is provided with a wear-resistant layer, and the wear-resistant layer is arranged on the inner wall of the mounting hole.

4. The power-on auxiliary tool according to claim 3, wherein the wear-resistant layer is a nylon layer.

5. The power-on auxiliary tool according to claim 2, wherein each power-on structure further comprises a linear bearing arranged in the mounting hole, and one end of the upper voltage pin is mounted in the linear bearing.

6. A power-on auxiliary tool according to any one of claims 2 to 5, wherein the mounting hole is a through hole penetrating through the connecting seat, and the tail end of the upper voltage pin penetrates through the through hole; each power-on structure further comprises a limiting piece, the limiting piece is located on one side of the through hole, and the limiting piece is arranged at the tail end of the upper voltage pin;

the limiting piece is detachably connected with the upper voltage pin.

7. An electrification auxiliary tool according to any one of claims 1-5, wherein the upper voltage needle comprises a needle rod and a needle head arranged on the needle rod, and the radial length of the needle head is reduced along a direction away from the needle rod;

one end of the needle rod, which is far away from the needle head, extends into the connecting seat, and the elastic element is sleeved on the part of the needle rod, which extends out of the connecting seat.

8. A power-on auxiliary tool according to any one of claims 1-5, wherein the power-on auxiliary tool further comprises a plurality of fasteners; each fastener detachably fixes the corresponding connecting seat on the base.

9. The power-on auxiliary tool according to claim 8, wherein the base is provided with a sliding groove penetrating through the base, and each fastener extends into the sliding groove to fix the connecting seat on the base;

the base is further provided with a clamping groove located on one side of the sliding groove, the clamping groove is parallel to the sliding groove, and the connecting seats included in the power-on structures are clamped in the clamping grooves.

10. A battery string detection device, characterized by comprising the power-on auxiliary tool of any one of claims 1 to 9.

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