CN218647884U - Battery string detects and maintenance device - Google Patents

Abstract

The utility model provides a battery cluster detects and maintenance device, including material loading detection mechanism, transport mechanism, maintenance platform, first benefit rosin joint mechanism and second benefit rosin joint mechanism, wherein: the feeding detection mechanism is used for implementing the cold joint detection of the battery string; the maintenance platform is provided with a plurality of welding holes penetrating through the maintenance platform, and the transfer mechanism is used for transferring the battery strings with the insufficient solder to the maintenance platform from the feeding detection mechanism and enabling the insufficient solder to be positioned at the welding holes; the first virtual welding supplementing mechanism is used for re-welding the welding strip at the virtual welding point on the upper surface of the battery string with the battery piece; and the second virtual welding mechanism is used for passing through the welding hole from the lower side to re-weld the welding strip at the virtual welding point on the lower surface of the battery string with the battery piece. The utility model discloses an automated inspection to the virtual solder joint of battery cluster to accomplish the benefit virtual welding to the virtual solder joint automatically, promoted battery cluster maintenance efficiency by a wide margin, promoted the productivity.

Description

Battery string detects and maintenance device

Technical Field

The utility model relates to a battery production field especially relates to a battery cluster detects and maintains device.

Background

The battery string is formed by welding a plurality of battery pieces through the welding strips, and a cold joint defect can occur in the battery string in the welding or circulation process. Especially, the welding strip adopted during welding of the battery string with the smaller space between the grid lines is also thinner, and the probability of front surface insufficient soldering and back surface insufficient soldering in the welded battery string is high, so that the battery string is frequently required to be repaired and subjected to insufficient soldering maintenance.

In a traditional maintenance mode, firstly, detection of a virtual welding point on a battery string is implemented through manual or professional detection equipment so as to determine whether the battery string has the virtual welding point and determine the position of the virtual welding point. And then, repairing the false welding points by manual welding, namely, re-welding the welding strips at the false welding points and the battery piece together. The traditional maintenance mode has low efficiency and influences the productivity.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned defect that exists among the prior art, the utility model provides a battery cluster detects and maintains device, its detailed technical scheme as follows:

the utility model provides a battery cluster detects and maintenance device, includes material loading detection mechanism, transport mechanism, maintenance platform, first benefit rosin joint mechanism and second benefit rosin joint mechanism, wherein:

the feeding detection mechanism is used for implementing the virtual welding detection of the battery string so as to determine whether the battery string has virtual welding points and the positions of the virtual welding points;

the maintenance platform is provided with a plurality of welding holes penetrating through the maintenance platform, and the transfer mechanism is used for transferring the battery strings with the insufficient solder to the maintenance platform from the feeding detection mechanism and enabling the insufficient solder points in the battery strings to be located at the welding holes;

the first virtual welding mechanism is arranged above the maintenance platform and used for re-welding the welding strip at the virtual welding point on the upper surface of the battery string with the battery piece from the upper side;

the second is mended virtual welding and is constructed the setting in the below of maintenance platform, second is mended virtual welding and is constructed and is used for passing the solder strip of the virtual solder joint department of welding the lower surface of battery cluster and rewelding with the battery piece from the downside.

Through detection mechanism, transport mechanism, maintenance platform, first benefit rosin joint mechanism and the cooperation of second benefit rosin joint mechanism, the utility model discloses a battery cluster detects and can implement the automated inspection to the rosin joint's of battery cluster with maintenance device to the automatic implementation is to the benefit rosin joint of battery cluster upper and lower surface rosin joint under the condition of not overturning the battery cluster, thereby has promoted the maintenance efficiency of battery cluster by a wide margin, promotes the productivity.

In some embodiments, a plurality of welding holes are provided in a predetermined area on the service platform, wherein: welding holes in the preset area are arranged in one-to-one correspondence with welding points on a single battery piece; or the plurality of welding holes comprise a first welding hole group and a second welding hole group which are arranged at intervals, each row of welding holes of the first welding hole group and N rows of welding points on the first side edge of a single battery piece are arranged in a one-to-one correspondence mode, each row of welding holes of the second welding hole group and N rows of welding points on the second side edge of the single battery piece are arranged in a one-to-one correspondence mode, and N is larger than or equal to 2.

The utility model provides a setting scheme of welding hole on two kinds of maintenance platforms, in a scheme, be provided with in the predetermined area on the maintenance platform with the welding hole that each welding point one-to-one set up on the single battery piece, when placing the battery cluster to the maintenance platform on, the control has the battery piece of rosin joint to put in this predetermined area to all welding points homoenergetic on the lower surface of rosin joint battery piece expose from the welding hole that corresponds, so, can make things convenient for second benefit rosin joint structure to implement the benefit rosin joint of the welding point that exists the rosin joint wantonly on the lower surface of rosin joint battery piece. In another scheme, considering that the virtual welding points of the battery piece mostly appear at the two side edges in the width direction of the battery piece, a first welding hole group and a second welding hole group can be selectively arranged in a preset area of the maintenance platform, wherein the first welding hole group corresponds to each welding point at the first side edge of a single battery piece one by one, the second welding hole group corresponds to each welding point at the second side edge of a single battery piece one by one, each welding disc at the first side edge of the lower surface of the battery piece is exposed from the corresponding first welding hole group, and each welding disc at the second side edge of the lower surface of the battery piece is exposed from the corresponding second welding hole group.

In some embodiments, the second false soldering mechanism is a laser welding mechanism, and laser emitted by the second false soldering mechanism penetrates through the welding hole to re-weld the welding strip at the false soldering point on the lower surface of the battery string with the battery piece; or the second false soldering repairing mechanism is a resistance welding mechanism and comprises a first positive electrode, a first negative electrode and a first pressing piece, the first positive electrode, the first negative electrode and the first pressing piece jointly penetrate through the welding hole, the first pressing piece presses the false soldering point, and the first positive electrode and the first negative electrode press the welding strips on two sides of the false soldering point and are electrified so as to weld the welding strips at the false soldering point with the battery piece again.

The second is mended virtual welding mechanism and is adopted laser welding mechanism, and the non-contact of the false solder joint of battery cluster lower surface can be implemented promptly to welding laser that its launched welding hole passes, has promoted the benefit and has welded efficiency. Or, the second repair welding mechanism is set to be the resistance welding mechanism comprising the first positive electrode, the first negative electrode and the first pressing piece, so that the welding strip at the pseudo-welding point can be pressed, and the welding strip is re-welded to the welding point at the pseudo-welding point by electrifying the welding strip, and the repair welding effect is ensured.

In some embodiments, the feeding detection mechanism includes a feeding mechanism, a transferring mechanism, a arranging mechanism, a first detection mechanism, a second detection mechanism, and a buffer stage, wherein: the transferring mechanism is used for picking up the battery strings from the feeding mechanism and loading the picked battery strings onto the regulating mechanism, and the regulating mechanism is used for regulating the battery strings; the first detection mechanism is arranged above the regulating mechanism and is used for performing serial inspection on the upper surfaces of the battery pieces; the transferring mechanism is also used for moving the battery string from the regulating mechanism to the second detection mechanism; the second detection mechanism is used for performing serial detection on the lower surface of the battery string and performing EL detection on the battery string; the transfer mechanism is also used for moving the battery strings with the cold solder detected by the second detection mechanism from the second detection mechanism to the buffer platform; and the transfer mechanism picks up the battery strings with the cold joints from the cache table.

Through setting up and moving the mechanism, realized that the battery cluster from feeding mechanism to regular mechanism, from regular mechanism to second detection mechanism to and from the second detection mechanism to the automatic of buffer memory platform move and carry. Through setting up first detection mechanism, second detection mechanism, realized rosin joint, the internal defect detection of battery cluster and the appearance defect detection on upper and lower two surfaces. Through setting up regular mechanism, realized the rule to the battery cluster, guarantee to move and carry the assigned position that the mechanism can transport the battery cluster to the back end mechanism.

In some embodiments, the transfer mechanism comprises a first transfer hand and a second transfer hand, wherein: the first transfer hand is used for picking up the battery strings from the feeding mechanism and loading the picked battery strings onto the arranging mechanism; the second moves and carries the hand and is used for moving the battery cluster from the regularization mechanism to the second detection mechanism to and move the battery cluster that has the rosin joint from the second detection mechanism to the buffering bench.

Through will moving the mechanism and set to including first move and carry the hand with the second to move for move and carry the mechanism and move the battery piece in with feed mechanism and carry to regular mechanism the time, can move the battery cluster on regular mechanism and carry to the second detection mechanism on, or move the battery piece on the second detection mechanism to the buffer bench, thereby promoted material loading detection mechanism's material loading efficiency, guaranteed the beat of work.

In some embodiments, the transfer mechanism further comprises a transfer rail, a first transfer driving device, and a second transfer driving device, wherein: the first transfer hand is slidably arranged on the transfer guide rail and is in transmission connection with the first transfer driving device, and the first transfer driving device is used for driving the first transfer hand to translate along the transfer guide rail; the second transfer hand is slidably mounted on the transfer guide rail and is in transmission connection with a second transfer driving device, and the second transfer driving device is used for driving the second transfer hand to translate along the transfer guide rail.

The first transfer hand and the second transfer hand are respectively driven by different transfer driving devices, so that the first transfer hand and the second transfer hand are independently controlled, and the transfer flexibility of the first transfer hand and the second transfer hand is improved.

In some embodiments, the first detection mechanism comprises a first cross-point camera and a light source, wherein: the first serial detection camera is a linear array camera and is arranged on the first traverse module, and the first serial detection camera moves along the length direction of the battery string under the driving of the first traverse module so as to carry out serial detection on the upper surface of the battery string; the light source is installed on the second sideslip module, and the light source moves along the length direction of battery cluster under the drive of second sideslip module to the implementation is to the light filling of first string camera.

By controlling the first serial detection camera and the light source to move along the length direction of the battery string, the line scanning shooting of the upper surface of the battery string is achieved, and the detection precision is improved. The first serial inspection camera and the light source are arranged on different transverse moving modules, so that the light source cannot be dragged to the first serial inspection camera to vibrate even if the light source vibrates in the moving process due to the fact that the light source is heavy in weight, and therefore the shooting precision of the first serial inspection camera is guaranteed.

In some embodiments, the second detection mechanism comprises a support frame, a first conductive block, a second cross-checking camera, and an EL camera, wherein: the first conducting block is arranged on the supporting frame and connected with the positive electrode of the power supply, and the second conducting block is arranged on the supporting frame and connected with the negative electrode of the power supply; the shifting mechanism picks up the battery string and presses the head welding strip of the battery string onto the first conductive block, and presses the tail welding strip of the battery string onto the second conductive block to conduct the battery string; and the second serial inspection camera and the EL camera are arranged below the supporting frame, wherein the second serial inspection camera is used for performing serial inspection on the lower surface of the battery string, and the EL camera is used for acquiring an infrared image of the conducted battery string to perform EL detection on the conducted battery string.

Through the arrangement of the supporting frame, the hollow structure of the frame realizes the exposure of the lower surface of the battery string; through the arrangement of the first conductive block, the second conductive block and the EL camera, the second detection mechanism realizes the insufficient soldering and internal defect detection of the battery string; and through setting up the second cluster and examining the camera, then realized the apparent defect detection to the lower surface of battery cluster.

In some embodiments, the buffer stage is slidably mounted on the support frame and configured to slidably switch between a buffer position proximate to the first and second conductive blocks and an avoidance position distal from the first and second conductive blocks; when the buffer platform slides to the buffer position, the transfer mechanism moves the battery string with the cold solder joint to the buffer platform.

The buffer table is arranged on the supporting frame in a sliding mode, and the buffer table can be switched between a buffer position close to the first conductive block and the second conductive block and an avoidance position far away from the first conductive block and the second conductive block in a sliding mode. When the transfer mechanism moves the battery string to the first conductive block and the second conductive block, the buffer platform can move to the avoidance position to avoid the battery string; and after the second detection mechanism finishes detecting the battery strings, the buffer station can be moved to the buffer position, so that the transfer mechanism can move the battery strings with the cold solder nearby to the buffer station.

In some embodiments, the battery string detection and maintenance device further comprises a positioning mechanism disposed above the regulating mechanism, and the positioning mechanism is used for positioning the battery string on the regulating mechanism.

Through set up positioning mechanism above the neat mechanism, realize being lieing in the location of the battery cluster on the neat mechanism to make neat mechanism can accomplish the neat to the battery cluster according to the positional information of battery cluster.

In some embodiments, the battery string detection and maintenance device further comprises a weld-on strap mechanism; the pressure welding strip mechanism comprises a first pressure pin row and a second pressure pin row, wherein a gap is formed between the first pressure pin row and the second pressure pin row, the first pressure pin row comprises a plurality of first pressure pins arranged side by side, the second pressure pin row comprises a plurality of second pressure pins corresponding to the first pressure pins one by one, each first pressure pin and the corresponding second pressure pin are used for pressing a welding strip, and at least one row of virtual welding points are exposed at the gap; the first false soldering repairing mechanism is a laser welding mechanism, and laser beams emitted by the first false soldering repairing mechanism penetrate through the gaps to re-weld the solder strips at the exposed false soldering points and the battery pieces; or the first false welding repairing mechanism is a resistance welding mechanism and comprises a second positive electrode, a second negative electrode and a second pressing piece, the second positive electrode, the second negative electrode and the second pressing piece jointly penetrate through the gap, the second pressing piece presses the false welding point, and the second positive electrode and the second negative electrode press the welding strips on the two sides of the false welding point and are electrified so as to re-weld the welding strips on the false welding point with the battery piece.

Through setting up the pressure welding tape unit who includes first tucking comb and second tucking comb, realized compressing tightly of welding the area on the battery cluster, in addition, form the space between first tucking comb and the second tucking comb to make first mending rosin joint unit can implement the mending rosin joint to the rosin joint between first tucking comb and the second tucking comb through the space. The first virtual welding mechanism adopts a laser welding mechanism, and the welding laser emitted by the first virtual welding mechanism penetrates through the gap to implement non-contact virtual welding repair of the virtual welding spots on the upper surface of the battery string, so that the virtual welding repair efficiency is improved. Or, the first repair welding mechanism is set to be the resistance welding mechanism comprising the second positive electrode, the second negative electrode and the second pressing piece, so that the welding strip at the pseudo-welding point can be pressed, and the welding strip is re-welded to the welding point at the pseudo-welding point by electrifying the welding strip, and the repair pseudo-welding effect is ensured.

In some embodiments, the bonding tape mechanism further comprises a moving device, the first and second pin rows are disposed on a movable part of the moving device, and the moving device is configured to drive the first and second pin rows to ascend and descend and move along the length direction of the battery string, so as to expose the dummy solder joints of each row in turn.

The first needle pressing row and the second needle pressing row are driven by the moving device to move along the length direction of the battery string, and the sequential exposure of each row of virtual welding points on the battery string is realized, so that the first virtual welding repairing mechanism can implement sequential virtual welding repairing on each row of virtual welding points on the battery string.

In some embodiments, the battery string inspection and maintenance device further comprises a first flux application mechanism and a second flux application mechanism, wherein: the first flux coating mechanism is configured to coat flux on the virtual solder joints on the upper surface of the battery string before re-soldering; the second flux applying mechanism is configured to apply flux to the dummy solder pads on the lower surface of the battery string prior to re-soldering.

Through setting up first scaling powder coating mechanism and second scaling powder coating mechanism, realized the automatic coating to the scaling powder of battery cluster upper and lower surface, guarantee to mend the welding effect of rosin joint.

Drawings

Fig. 1 is a schematic structural view of a battery string inspection and maintenance device according to the present invention at a viewing angle;

fig. 2 is a schematic structural view of the battery string inspection and maintenance device according to the present invention at another viewing angle (the transferring mechanism is not shown);

FIG. 3 is an enlarged view of a portion of the loading detection mechanism of FIG. 2;

FIG. 4 is a partial enlarged view of the repair platform, the first cold solder repair mechanism, and the second cold solder repair mechanism of FIG. 2;

fig. 5 is a schematic structural diagram of a second detection mechanism and a buffer stage in an embodiment of the present invention;

fig. 6 is a partial structural view of a maintenance platform according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a pressure welding belt mechanism in an embodiment of the present invention;

fig. 1 to 7 include:

material loading detection mechanism 10:

a feeding mechanism 11;

transfer means 12: a transfer rail 121, a first transfer hand 122, and a second transfer hand 123;

a regulating mechanism 13;

first detection mechanism 14: a first cross-checking camera 141, a light source 142;

second detection mechanism 15: a support frame 151, a first conductive block 152, a second conductive block 153, a second cross-inspection camera 154, an EL camera 155;

a cache station 16;

a transfer mechanism 20;

maintenance platform 30:

a first welding hole group 31;

a second set of weld holes 32;

a predetermined area 33;

an adsorption hole 34;

a first cold solder joint repair mechanism 40;

a second cold solder joint repair mechanism 50;

the pressure welding belt mechanism 60:

a first presser pin 61;

a second presser pin 62;

a first flux coating mechanism 70;

a second flux coating mechanism 80;

and a blanking mechanism 90.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

The battery string is formed by welding a plurality of battery pieces through the welding strips, and a cold joint defect can occur in the battery string in the welding or circulation process. Particularly, the welding strip adopted during welding of the battery string with the smaller space between the grid lines is also thinner, and the probability of front surface cold joint and back surface cold joint in the welded battery string is high, so that the battery string is frequently required to be repaired and maintained.

In a traditional maintenance mode, firstly, detection of a virtual welding point on a battery string is implemented through manual or professional detection equipment so as to determine whether the battery string has the virtual welding point and determine the position of the virtual welding point. And then the false welding of the false welding points is performed manually. The traditional maintenance mode has low efficiency and influences the productivity.

In view of this, the utility model provides a battery cluster detects and maintenance device, as shown in fig. 1 to fig. 2, the embodiment of the utility model provides a battery cluster detects and maintenance device includes material loading detection mechanism 10, transport mechanism 20, maintenance platform 30, first benefit rosin joint mechanism 40 and second benefit rosin joint mechanism 50, wherein:

the feeding detection mechanism 10 is used for performing a cold solder joint detection on the battery string to determine whether a cold solder joint exists in the battery string and the position of the cold solder joint.

The maintenance platform 30 is provided with a plurality of welding holes penetrating through the maintenance platform 30, and the transfer mechanism 20 is used for transferring the battery string with the insufficient solder from the feeding detection mechanism 10 to the maintenance platform 30, and enabling the insufficient solder in the battery string to be located at the welding holes.

First repair rosin joint mechanism 40 sets up in the top of maintenance platform 30, and first repair rosin joint mechanism 40 is used for from the upside with battery piece rewelding with the solder strip of the rosin joint point of battery cluster upper surface.

The second repair cold joint mechanism 50 is arranged below the maintenance platform 30, and the second repair cold joint mechanism 50 is used for passing through the welding hole from the lower side to re-weld the welding strip at the cold joint point of the lower surface of the battery string and the battery piece.

The upper surface refers to an upward surface of the battery string on the feeding-to-feeding detection mechanism 10, and the surface may be a front surface of the battery string or a back surface of the battery string. Similarly, the lower surface refers to a downward surface of the battery string located on the feeding-to-feeding detection mechanism 10, and the surface may be the front surface of the battery string or the back surface of the battery string.

It is visible, through detection mechanism 10, transport mechanism 20, maintenance platform 30, first benefit rosin joint mechanism 40 and the cooperation of second benefit rosin joint mechanism 50, the utility model discloses a battery cluster detects and maintenance device can realize the automated inspection to the rosin joint's of battery cluster to accomplish the benefit rosin joint to battery cluster upper and lower surface rosin joint automatically under the condition of not overturning the battery cluster, thereby promote the maintenance efficiency of battery cluster by a wide margin, promote the productivity.

As shown in fig. 6, optionally, a plurality of welding holes are provided in the predetermined region 33 on the maintenance platform 30, and as shown in fig. 1 and 2, the predetermined region 33 may be provided at a middle position of the maintenance platform 30 and has an area approximately equal to that of a single battery piece. When the transferring mechanism 20 transfers the battery string to the maintenance platform 30, one of the battery pieces in the battery string having the dummy solder joints is loaded on the predetermined area 33.

Alternatively, the welding holes in the predetermined region 33 are arranged in one-to-one correspondence with the welding points on the individual battery pieces. As such, after the battery string is placed on the maintenance platform 30, all of the welding points on the lower surface of the battery piece located on the predetermined region 33 can be exposed from the corresponding welding holes, and thus, the second cold joint repairing mechanism 50 can perform cold joint repairing of any welding point on the lower surface of the battery piece where cold joint exists.

Because the false solder joint of battery piece appears in battery piece width direction's both sides edge mostly, consequently, only set up the welding hole in the both sides edge of predetermined area 33, also can satisfy the filling up of most under the condition and weld the demand to the battery piece.

Specifically, as shown in fig. 6, the plurality of welding holes in the predetermined area 33 include a first welding hole group 31 and a second welding hole group 32, wherein the first welding hole group 31 and the second welding hole group 32 are arranged at intervals, each row of welding holes of the first welding hole group 31 is arranged in one-to-one correspondence with N rows of welding points on the first side edge of a single battery piece, each row of welding holes of the second welding hole group 32 is arranged in one-to-one correspondence with N rows of welding points on the second side edge of a single battery piece, and N is greater than or equal to 2.

In the embodiment of fig. 6, the first welding hole group 31 and the second welding hole group 32 each comprise two rows of welding holes, i.e. N is equal to 2. In this embodiment, the second cold joint repairing mechanism 50 may perform cold joint repairing on any of the two rows of welding points of the first side edge and the two rows of welding points of the second side edge of the single cell.

In the embodiment of fig. 6, the maintenance platform at the predetermined area 33 is further provided with an absorption hole 34, so that the cell with the cold joint is absorbed and positioned in the repair process, and the cell compresses the solder strip on the lower surface of the cell while absorbing, thereby ensuring the repair quality. Vacuum adsorption is usually adopted during adsorption, an air duct needs to be arranged inside the maintenance platform, and when the first welding hole group 31 and the second welding hole group 32 are arranged at intervals, welding holes are not arranged at the intervals, so that a space is reserved for arranging the air duct, and the structural compactness is improved.

Second repair rosin joint mechanism 50 can be laser welding mechanism, and the laser of its transmission directly passes the welding hole and implements the non-contact repair rosin joint to battery cluster lower surface to promote repair rosin joint efficiency. In addition, the heating area of laser welding is little and the temperature rise is controllable, consequently can directly carry out the repair rosin joint to the welding point of rosin joint during the repair rosin joint to improve the repair rosin joint effect.

The second cold-patch welding mechanism 50 may also be a resistance welding mechanism including a first positive electrode, a first negative electrode, and a first pressing member. The first positive electrode, the first negative electrode and the first pressing piece jointly penetrate through the welding hole, wherein the first pressing piece presses the virtual welding point, and the first positive electrode and the first negative electrode press the welding strips on two sides of the virtual welding point and are electrified. After the welding strip is electrified, the heating leads the solder at the welding point of the cold joint to melt, thereby being re-welded on the battery piece.

As shown in fig. 3, optionally, the feeding detection mechanism 10 includes a feeding mechanism 11, a transferring mechanism 12, a regulating mechanism 13, a first detection mechanism 14, a second detection mechanism 15, and a buffer platform 16, wherein:

the transfer mechanism 12 is used for picking up the battery strings from the feeding mechanism 11 and feeding the picked up battery strings to the arranging mechanism 13.

The regulating mechanism 13 is used for finishing regulating the battery string. Optionally, a positioning mechanism is further disposed above the regulating mechanism 12, the positioning mechanism is configured to position the battery string located on the regulating mechanism 12 to obtain the position information of the battery string, and the regulating mechanism 13 regulates the battery string based on the position information of the battery string.

The first detection mechanism 14 is arranged above the regulating mechanism 12, and the first detection mechanism 14 is used for performing serial inspection on the upper surface of the cell to determine whether the upper surface of the cell has an appearance defect.

The transfer mechanism 12 is also used for moving the battery string on the regulating mechanism 13 after the upper surface string inspection and regulation to the second inspection mechanism 15.

The second detection mechanism 15 is used for performing serial detection on the lower surface of the battery string to determine whether the lower surface of the battery piece has an appearance defect. The second detection mechanism 15 also performs EL detection on the battery string to detect cold solder and internal defects of the battery string.

The transfer mechanism 12 is also used to transfer the battery string with the cold solder detected by the second detection mechanism 15 from the second detection mechanism 15 onto the buffer stage 16. Optionally, the feeding detection mechanism 10 further includes a manual detection station, the transfer mechanism 12 moves the battery string with the dummy solder joint detected by the second detection mechanism to the manual detection station, and the position of the dummy solder joint is calibrated manually on the industrial personal computer, so as to ensure that the subsequent dummy solder joint repair is more accurate. After the manual calibration is completed, the transfer mechanism 12 places the battery string with the cold solder joint on the buffer storage table 16.

The transfer mechanism 20 picks up the battery string with the cold joint from the buffer table 16, and finally transfers the battery string with the cold joint to the maintenance platform 30.

As can be seen, the transfer mechanism 12 needs to transfer the battery string from the supply mechanism 11 to the organizing mechanism 12, transfer the battery string from the organizing mechanism 12 to the second detection mechanism 15, and transfer the battery string from the second detection mechanism 15 to the buffer stage 16.

As shown in fig. 3, the transfer mechanism 12 may optionally include a first transfer hand 122 and a second transfer hand 123, wherein: the first transfer hand 122 is used for picking up the battery string from the feeding mechanism 11 and loading the picked-up battery string onto the arranging mechanism 12. The second transfer hand 123 is used to move the battery string from the organizing mechanism 12 to the second detection mechanism 15, and to move the battery string with the cold solder joint from the second detection mechanism 15 to the buffer stage 16.

By arranging the transferring mechanism 12 to include the first transferring hand 122 and the second transferring hand 123, the transferring mechanism can transfer the cell strings on the regulating mechanism 12 to the second detecting mechanism 15 and the buffer table 16 while transferring the cell pieces in the feeding mechanism 11 to the regulating mechanism 12, so that the feeding efficiency of the feeding detecting mechanism 10 is improved, and the working cycle is ensured.

Optionally, the transferring mechanism 12 further includes a transferring guide rail 121, a first transferring driving device and a second transferring driving device, wherein: the first transfer hand 122 is slidably mounted on the transfer guide rail 121 and is in transmission connection with the first transfer driving device, and the first transfer driving device is configured to drive the first transfer hand 122 to translate along the transfer guide rail 121, so as to realize the movement of the first transfer hand 122 between the feeding mechanism 11 and the arranging mechanism 12. The second transfer hand 123 is slidably mounted on the transfer rail 121 and is connected to a second transfer driving device in a transmission manner, and the second transfer driving device is configured to drive the second transfer hand 123 to translate along the transfer rail 121, so that the second transfer hand 123 moves among the arranging mechanism 12, the second detecting mechanism 15, and the buffer stage 16.

Since the first transfer hand 122 and the second transfer hand 123 are driven by different transfer driving devices, the first transfer hand 122 and the second transfer hand 123 can be independently controlled, and the transfer flexibility of the first transfer hand 122 and the second transfer hand 123 can be improved.

As shown in fig. 3, optionally, the first detection mechanism 14 includes a first serial-detection camera 141 and a light source 142, wherein: the first serial inspection camera 141 is a line camera and is mounted on the first traverse module, and the first serial inspection camera 141 moves in a length direction of the battery string by being driven by the first traverse module to perform serial inspection on the upper surface of the battery string. The light source 142 is mounted on the second traverse module, and the light source moves along the length direction of the battery string under the driving of the second traverse module 142 to implement light supplement to the first serial inspection camera 141.

By controlling the first serial inspection camera 141 and the light source 142 to move along the length direction of the battery string, the line scanning shooting of the upper surface of the battery string is realized, and the detection precision is improved. The first serial inspection camera 141 and the light source 142 are disposed in different traverse modules, so that the light source 142 does not get stuck to the first serial inspection camera 141 to vibrate even if the light source 142 vibrates due to its heavy weight during the moving process, thereby ensuring the photographing accuracy of the first serial inspection camera 141.

As shown in fig. 5, optionally, the second detecting mechanism 15 includes a supporting frame 151, a first conductive block 152, a second conductive block 153, a second serial camera 154, and an EL camera 155, wherein: the first conductive block 152 is disposed on the supporting frame 151 and connected to a positive electrode of a power source, and the second conductive block 153 is disposed on the supporting frame 151 and connected to a negative electrode of the power source.

The transfer mechanism 12 picks up the battery string and presses the head solder strip of the battery string to the first conductive block 152, and presses the tail solder strip of the battery string to the second conductive block 153, so as to conduct the battery string.

A second serial inspection camera 154 and an EL camera 155 are disposed below the support frame 151, wherein the second serial inspection camera 154 is used to perform serial inspection on the lower surface of the battery string, and the EL camera 155 is used to acquire an infrared image of the turned-on battery string to perform EL detection on the turned-on battery string.

With continued reference to fig. 5, optionally, the buffer stage 16 is slidably mounted on the supporting frame 151 and connected to a buffer stage driving device disposed on the supporting frame 151, the buffer stage driving device being configured to drive the buffer stage 16 to be slidably switched between a buffer position close to the first conductive bumps 152 and the second conductive bumps 153 and an escape position far from the first conductive bumps 152 and the second conductive bumps 153.

When the serial inspection and the EL inspection of the lower surface of the battery string are required, the buffer stage 16 moves to the avoidance position to avoid the battery string, and then the second transfer hand 123 of the transfer mechanism 12 picks up the battery string and presses the remaining long solder strips at the two ends of the battery string on the first conductive block 152 and the second conductive block 153, respectively, at this time, the second serial inspection camera and the EL camera can perform the serial inspection and the EL inspection of the lower surface of the battery string.

After the detection is finished, the second transfer hand 123 raises the battery string, and after the buffer stage 16 moves to the buffer position, the second transfer hand 123 can place the battery string with the cold solder on the buffer stage 16.

As shown in fig. 2 and 7, the battery string inspection and maintenance device of the present invention further includes a pressure welding belt mechanism 60. The pressure welding belt mechanism 60 includes a first presser bar and a second presser bar, wherein:

a gap is formed between the first pressing pin row and the second pressing pin row, the first pressing pin row comprises a plurality of first pressing pins 61 which are perpendicular to the extending direction of the battery strings and are arranged side by side, the second pressing pin row comprises a plurality of second pressing pins 62 which are in one-to-one correspondence with the first pressing pins 61, and each first pressing pin 61 and the corresponding second pressing pin 62 are used for pressing a welding strip. At least one row of virtual welding points are exposed at the gap between the first needle pressing row and the second needle pressing row.

The first cold joint repair mechanism 14 may be a laser welding mechanism that emits a laser beam through the gap to effect re-welding of the solder ribbon and the cell sheet at the exposed cold joint.

The first cold-patch welding mechanism 14 may also be a resistance welding mechanism that includes a second positive electrode, a second negative electrode, and a second pressing member. The second positive electrode, the second negative electrode and the second pressing piece jointly penetrate through the gap, the second pressing piece presses the virtual welding point, and the second positive electrode and the second negative electrode press the welding strips on two sides of the virtual welding point and are electrified. The solder strip is electrified to generate heat, so that the solder at the welding point of the cold joint is melted, and then the cold joint is re-welded on the battery piece.

Optionally, the pressure welding belt mechanism 60 further includes a moving device, the first pressure pin row and the second pressure pin row are disposed on a movable component of the moving device, and the moving device is configured to drive the first pressure pin row and the second pressure pin row to ascend and descend and to move along the length direction of the battery string, so as to expose the rows of dummy solder joints in sequence, and thus the first repair dummy solder joint mechanism 14 can perform sequential repair dummy solder joints of the rows of dummy solder joints on the battery string.

As shown in fig. 4, optionally, the battery string detecting and maintaining device of the present invention further includes a first soldering flux coating mechanism 70 and a second soldering flux coating mechanism 80, wherein: the first flux application mechanism 70 is configured to apply flux to the dummy solder bumps on the upper surface of the battery string prior to re-soldering. The second flux applying mechanism is configured to apply flux to the dummy solder pads on the lower surface of the battery string prior to re-soldering.

As shown in fig. 1, it is optional, the utility model discloses a battery cluster detects and maintains device still includes unloading mechanism 90, and unloading mechanism 90 is used for removing the battery cluster after accomplishing the filling and welding from maintenance platform 30.

The invention has been described above with a certain degree of particularity and detail. It will be understood by those of ordinary skill in the art that the description of the embodiments is merely exemplary and that all changes that may be made without departing from the true spirit and scope of the present invention are intended to be within the scope of the present invention. The scope of the invention is defined by the appended claims rather than by the foregoing description of the embodiments.

Claims (13)

1. The utility model provides a battery cluster detects and maintenance device, a serial communication port, battery cluster detects and maintenance device includes material loading detection mechanism, transport mechanism, maintenance platform, first benefit rosin joint mechanism and second benefit rosin joint mechanism, wherein:

the feeding detection mechanism is used for implementing the false welding detection of the battery string so as to determine whether the battery string has false welding points and the positions of the false welding points;

the maintenance platform is provided with a plurality of welding holes penetrating through the maintenance platform, and the transfer mechanism is used for transferring the battery strings with the insufficient solder to the maintenance platform from the feeding detection mechanism and enabling the insufficient solder in the battery strings to be located at the welding holes;

the first virtual welding mechanism is arranged above the maintenance platform and used for re-welding the welding strip at the virtual welding point on the upper surface of the battery string with the battery piece from the upper side;

and the second virtual welding mechanism is arranged below the maintenance platform and used for passing through the welding hole from the lower side to re-weld the welding strip at the virtual welding point on the lower surface of the battery string and the battery piece.

2. The battery string inspection and maintenance device of claim 1, wherein a plurality of said welding holes are provided in a predetermined area on said maintenance platform, wherein:

each welding hole in the preset area is in one-to-one correspondence with each welding point on a single battery piece; alternatively, the first and second electrodes may be,

a plurality of the welding hole includes first welding punch combination and second welding punch combination, first welding punch combination with second welding punch combination interval sets up, each row welding hole of first welding punch combination sets up with the N row welding point one-to-one of the first side edge of single battery piece, each row welding hole of second welding punch combination sets up with the N row welding point one-to-one of the second side edge of single battery piece, and N is greater than or equal to 2.

3. The battery string inspection and maintenance device of claim 1, wherein the second cold joint repair mechanism is a laser welding mechanism, and laser emitted by the second cold joint repair mechanism passes through the welding hole to re-weld the welding strip at the cold joint on the lower surface of the battery string and the battery piece; alternatively, the first and second electrodes may be,

the second false soldering repairing mechanism is a resistance welding mechanism and comprises a first positive electrode, a first negative electrode and a first pressing piece, the first positive electrode, the first negative electrode and the first pressing piece jointly penetrate through the welding hole, the first pressing piece presses the false welding point, the first positive electrode and the first negative electrode press welding strips on two sides of the false welding point and are electrified, and therefore the welding strips on the false welding point are welded with the battery piece again.

4. The battery string inspection and maintenance device of claim 1, wherein the feeding inspection mechanism comprises a feeding mechanism, a transferring mechanism, a arranging mechanism, a first inspection mechanism, a second inspection mechanism, and a buffering table, wherein:

the transfer mechanism is used for picking up the battery strings from the feeding mechanism and loading the picked battery strings onto the regulating mechanism, and the regulating mechanism is used for regulating the battery strings;

the first detection mechanism is arranged above the arranging mechanism and is used for performing serial inspection on the upper surfaces of the battery pieces;

the transfer mechanism is also used for moving the battery string from the arranging mechanism to the second detection mechanism;

the second detection mechanism is used for performing serial detection on the lower surface of the battery string and performing EL detection on the battery string;

the transferring mechanism is also used for moving the battery strings with the cold solder joint detected by the second detection mechanism from the second detection mechanism to the buffer platform;

and the transfer mechanism picks up the battery strings with the cold joints from the cache table.

5. The battery string inspection and repair apparatus of claim 4, wherein: move and carry mechanism and include first move and carry hand and second and carry the hand, wherein:

the first transfer hand is used for picking up the battery strings from the feeding mechanism and feeding the picked battery strings to the arranging mechanism;

the second transfer hand is used for moving the battery strings from the regulating mechanism to the second detection mechanism and moving the battery strings with insufficient solder joints from the second detection mechanism to the buffer table.

6. The battery string inspection and maintenance device of claim 5, wherein the transfer mechanism further comprises a transfer rail, a first transfer driving device, and a second transfer driving device, wherein:

the first transfer hand is slidably mounted on the transfer guide rail and is in transmission connection with the first transfer driving device, and the first transfer driving device is used for driving the first transfer hand to translate along the transfer guide rail;

the second transfer hand is slidably mounted on the transfer guide rail and is in transmission connection with the second transfer driving device, and the second transfer driving device is used for driving the second transfer hand to translate along the transfer guide rail.

7. The battery string inspection and servicing apparatus of claim 4, wherein the first inspection mechanism comprises a first string inspection camera and a light source, wherein:

the first string detection camera is a linear array camera and is arranged on the first traverse module, and the first string detection camera moves along the length direction of the battery string under the driving of the first traverse module so as to perform string detection on the upper surface of the battery string;

the light source is installed on the second transverse moving module and driven by the second transverse moving module to move along the length direction of the battery string so as to implement light supplement on the first string inspection camera.

8. The battery string inspection and maintenance device of claim 4, wherein the second inspection mechanism comprises a support frame, a first conductive block, a second string inspection camera, and an EL camera, wherein:

the first conductive block is arranged on the supporting frame and connected with the positive electrode of a power supply, and the second conductive block is arranged on the supporting frame and connected with the negative electrode of the power supply;

the transferring mechanism picks up the battery string and presses the head welding strip of the battery string to the first conductive block and presses the tail welding strip of the battery string to the second conductive block so as to conduct the battery string;

the second serial inspection camera and the EL camera are both arranged below the supporting frame, wherein the second serial inspection camera is used for carrying out serial inspection on the lower surface of the battery string, and the EL camera is used for acquiring an infrared image of the conducted battery string to carry out EL detection on the conducted battery string.

9. The battery string inspection and maintenance device of claim 8, wherein the buffer stage is slidably mounted on the support frame and configured to slidably switch between a buffer position proximate to the first and second conductive blocks and an escape position distal from the first and second conductive blocks;

when the buffer platform slides to the buffer position, the transfer mechanism moves the battery string with the insufficient solder to the buffer platform.

10. The battery string inspection and maintenance device of claim 4, further comprising a positioning mechanism disposed above the organizing mechanism for performing positioning of a battery string positioned on the organizing mechanism.

11. The battery string inspection and maintenance device of claim 1, further comprising a crimp band mechanism;

the pressure welding strip mechanism comprises a first pressure pin row and a second pressure pin row, wherein a gap is formed between the first pressure pin row and the second pressure pin row, the first pressure pin row comprises a plurality of first pressure pins arranged side by side, the second pressure pin row comprises a plurality of second pressure pins corresponding to the first pressure pins one by one, each first pressure pin and the corresponding second pressure pin are used for pressing a welding strip, and at least one row of virtual welding points are exposed at the gap;

the first false soldering repairing mechanism is a laser welding mechanism, and laser beams emitted by the first false soldering repairing mechanism penetrate through the gap to re-weld the solder strips at the exposed false soldering points and the battery piece; or the first false soldering repairing mechanism is a resistance soldering mechanism, the first false soldering mechanism comprises a second positive electrode, a second negative electrode and a second pressing piece, the second positive electrode, the second negative electrode and the second pressing piece jointly penetrate through the gap, the second pressing piece presses the false solder joint, and the second positive electrode and the second negative electrode press and electrify solder strips positioned on two sides of the false solder joint so as to re-solder the solder strips at the false solder joint with the battery piece.

12. The battery string inspection and maintenance device of claim 11, wherein the bonding tape mechanism further comprises a moving device, the first and second pin rows are disposed on a movable part of the moving device, and the moving device is configured to drive the first and second pin rows to move up and down and along the length direction of the battery string to sequentially expose the dummy solder joints of the rows.

13. The battery string inspection and maintenance device of claim 1, further comprising a first flux application mechanism and a second flux application mechanism, wherein:

the first flux coating mechanism is configured to coat flux on the virtual solder joints on the upper surfaces of the battery strings before re-soldering;

the second flux applying mechanism is configured to apply flux to the dummy solder pads on the lower surface of the battery string prior to re-soldering.

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