CN115799386A - Welding strip positioning device, battery string repair method and repair machine - Google Patents
Welding strip positioning device, battery string repair method and repair machine Download PDFInfo
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- CN115799386A CN115799386A CN202211406486.XA CN202211406486A CN115799386A CN 115799386 A CN115799386 A CN 115799386A CN 202211406486 A CN202211406486 A CN 202211406486A CN 115799386 A CN115799386 A CN 115799386A
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- 238000003466 welding Methods 0.000 title claims abstract description 117
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000008439 repair process Effects 0.000 title claims abstract description 17
- 238000005096 rolling process Methods 0.000 claims abstract description 17
- 238000001179 sorption measurement Methods 0.000 claims description 62
- 229910000679 solder Inorganic materials 0.000 claims description 58
- 238000010438 heat treatment Methods 0.000 claims description 18
- 238000003825 pressing Methods 0.000 claims description 7
- 230000007547 defect Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000007650 screen-printing Methods 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The invention discloses a welding strip positioning device, a battery string repairing method and a repairing machine, wherein the welding strip positioning device comprises a bottom plate used for bearing a battery piece and a welding strip, at least one groove extending along a first direction is formed in the bottom plate, the groove comprises a first area and a second area communicated with the first area along the first direction, the second area is positioned at the end part of the bottom plate, the width of the first area along the second direction is smaller than that of the second area along the second direction, the depth of the first area along a third direction is larger than that of the second area along the third direction, the third direction is a direction in which the lower surface of the bottom plate points to the upper surface of the bottom plate, and the first direction, the second direction and the third direction are intersected in pairs. The invention respectively carries out positioning limitation on the round wire area and the rolling area of the welding strip, thereby preventing the welding strip from being distorted and other defects in the repair process.
Description
Technical Field
The invention relates to the technical field of photovoltaics, in particular to a solder strip positioning device, a battery string repairing method and a repairing machine.
Background
When a solar cell module is produced, a plurality of cell pieces and welding strips need to be welded into a cell string, and in the process of producing the cell string, due to the reasons of carrying, moving and hidden cracking of the cell pieces, a certain cell piece in a string of cell strings can be damaged; or, in the process of welding the battery pieces into a string, the welding strip and the battery pieces are welded insecurely, so that the condition of false welding occurs, and in addition, the problems of dirt, unfilled corners and the like may exist.
At present, in the process of repairing a battery string by a string repairing machine, the rolling position of a welding strip is easy to distort, so that the welding strip is deviated or broken, and the defects are caused.
Therefore, it is desirable to provide a solder strip positioning device, a battery string repair method, and a repair machine, which respectively position and limit the circular wire region and the rolled region of the solder strip, thereby preventing the solder strip from being distorted during the repair process.
Disclosure of Invention
In view of this, the present invention provides a solder strip positioning device, including a bottom plate for bearing a battery piece and a solder strip, where the bottom plate is provided with at least one groove extending along a first direction, the groove includes a first region and a second region communicated with the first region along the first direction, the second region is located at an end of the bottom plate, a width of the first region along the second direction is smaller than a width of the second region along the second direction, a depth of the first region along a third direction is greater than a depth of the second region along the third direction, the third direction is a direction in which a lower surface of the bottom plate points to an upper surface of the bottom plate, and the first direction, the second direction and the third direction intersect each other.
Optionally, the solder strip positioning device further comprises an adsorption hole, the adsorption hole comprises a first adsorption hole located on the second area, and the first adsorption hole is used for adsorbing the battery piece and the solder strip.
Optionally, the solder strip positioning device further comprises an adsorption hole, the adsorption hole comprises a second adsorption hole located on the bottom plate, and the second adsorption hole is used for adsorbing the battery piece;
the orthographic projection of the second adsorption hole perpendicular to the bottom plate is not overlapped with the orthographic projection of the groove perpendicular to the bottom plate.
Optionally, an adsorption pipeline communicated with the adsorption hole is arranged in the bottom plate, and an adsorption device communicated with the adsorption pipeline is arranged on the outer surface of the bottom plate.
Optionally, the adsorption holes further include a second adsorption hole located on the bottom plate, and a diameter of the first adsorption hole is smaller than a diameter of the second adsorption hole.
Optionally, the length of the second region in the first direction is in the range 7mm to 13mm.
Optionally, a side of the second region close to the first region protrudes outwards towards the groove to form an arc-shaped structure.
Optionally, the width of the second region along the second direction ranges from 0.43mm to 0.48mm, and the depth of the second region along the third direction ranges from 0.1mm to 0.15mm.
Optionally, the width of the first region along the second direction ranges from 0.28mm to 0.32mm, and the depth of the first region along the third direction ranges from 0.13mm to 0.22mm.
Optionally, the distance between adjacent grooves along the second direction is in the range of 6mm-12mm.
The invention also provides a repair machine which comprises the welding strip positioning device.
The invention also provides a battery string repairing method, which comprises the following steps,
placing at least two connected battery pieces on corresponding welding strip positioning devices respectively with the front surfaces facing downwards, wherein the welding strip positioning devices are the welding strip positioning devices;
the battery piece is corrected, so that a round wire area positioned on a welding belt on the front side of the battery piece falls into a first area;
heating the welding strip and the battery piece on the back surface in sequence by using a heating device, and separating the adjacent battery pieces to enable the rolling area of the welding strip to fall into a second area;
replacing a new battery piece and placing the new battery piece on at least one welding strip positioning device, so that a round wire area of a welding strip is positioned in a first area, and a rolling area of the welding strip is positioned in a second area;
and the pressing piece, the clamping jaw and the heating device are mutually matched, and the welding strips are sequentially welded on the adjacent battery pieces.
Compared with the prior art, the welding strip positioning device, the battery string repairing method and the repairing machine provided by the invention at least realize the following beneficial effects:
the welding strip positioning device comprises a bottom plate for bearing a battery piece and a welding strip, wherein at least one groove extending along a first direction is formed in the bottom plate, the groove comprises a first area and a second area communicated with the first area along the first direction, the second area is positioned at the end part of the bottom plate, the width of the first area along the second direction is smaller than that of the second area along the second direction, the depth of the first area along the third direction is larger than that of the second area along the third direction, a round wire area of the welding strip falls into the first area, a rolled area of the welding strip falls into the second area, and the round wire area and the rolled area of the welding strip are respectively positioned and limited, so that defects such as welding strip distortion in the repair process are prevented.
Of course, it is not necessary for any product in which the present invention is practiced to achieve all of the above-described technical effects simultaneously.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a schematic view of a solder strip positioning apparatus according to the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
FIG. 3 is an enlarged view at B in FIG. 1;
FIG. 4 is a schematic cross-sectional view taken at C-C in FIG. 1;
FIG. 5 is a schematic view of a construction of a rework machine provided in accordance with the present invention;
fig. 6 is a schematic flow chart of a battery string repairing method provided by the present invention.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
FIG. 1 is a schematic view of a solder strip positioning apparatus according to the present invention; FIG. 2 is an enlarged view at A in FIG. 1; FIG. 3 is an enlarged view at B in FIG. 1; FIG. 4 is a schematic cross-sectional view taken at C-C of FIG. 1; referring to fig. 1 to 4, the embodiment provides a solder strip positioning device, including a bottom plate 1 for carrying a battery piece (not shown in the drawings) and a solder strip (not shown in the drawings), wherein the bottom plate 1 is provided with at least one groove 2 extending along a first direction X, the groove 2 includes a first region 21 and a second region 22 communicated with the first region 21 along the first direction X, the second region 22 is located at an end of the bottom plate 1, a width of the first region 21 along a second direction Y is smaller than a width of the second region 22 along the second direction Y, a depth of the first region 21 along a third direction Z is greater than a depth of the second region 22 along the third direction Z, the third direction Z is a direction in which a lower surface of the bottom plate 1 points to an upper surface of the bottom plate 1, and the first direction X, the second direction Y and the third direction Z intersect each other pairwise.
Specifically, the solder strip positioning device may be adapted to 182 cell sizes: the length (182-185) mm and the width (90-92) mm (which can meet the negative spacing welding process); 210 cell size: the length is (210-213) mm, the width is (104-106) mm (which can satisfy the negative spacing welding process), certainly not limited to the size of the battery piece, the size of the welding strip positioning device is determined according to the length L and the width W of the battery piece, such as the length is (L) - (L + 3) mm, and the width is (W) = (L-2)/2-W + 2) mm; the welding strip positioning device comprises a bottom plate 1, wherein the bottom plate 1 is used for bearing a battery piece and a welding strip, and the bottom plate 1 can be of a planar structure; a plurality of grooves 2 are formed in the bottom plate 1, the plurality of grooves 2 extend along a first direction X and are arranged along a second direction Y, and the number of the grooves 2 is not particularly limited; the groove 2 comprises a first area 21 and a second area 22 along the first direction X, the first area 21 and the second area 22 are communicated, the first area 21 is a round wire area, the second area 22 is a rolled area, the second area 22 can be located at the end of the base plate 1, such as the head end of the base plate 1, the width of the first area 21 along the second direction Y is smaller than that of the second area 22 along the second direction Y, the depth of the first area 21 along the third direction Z is greater than that of the second area 22 along the third direction Z, that is, the first area 21 is narrow and deep, which is beneficial to falling the round wire area of the welding strip into the first area 21, and the second area 22 is wide and shallow, which is beneficial to falling the rolled area of the welding strip into the second area 22, it can be understood that: the round wire area of the welding strip is limited through the first area, the rolling area of the welding strip is limited through the second area, so that the phenomenon that the rolling area of the welding strip is distorted is avoided, and the third direction Z is the direction in which the lower surface of the bottom plate 1 points to the upper surface of the bottom plate 1; the first direction X, the second direction Y and the third direction Z intersect each other two by two, and optionally, the first direction X, the second direction Y and the third direction Z are perpendicular to each other two by two.
When the repairing device is used specifically, after the battery string is positioned visually, the battery string (not marked on the figure) is placed on a repairing platform (not marked on the figure) with the front side facing downwards, specifically, a piece to be repaired is placed on the bottom plate 1, and after the whole battery string is repaired, the round wire area of the welding strip on the front side of the battery piece is ensured to fall into the first area 21; heating by a heating device (not shown in the figure), separating the welding strip (not shown in the figure) on the back surface of part of the cell sheet from the cell sheet, and enabling the rolled area (not shown in the figure) of the welding strip to fall into the second area 22 under the action of self weight; after a piece to be repaired (including a front welding strip on a battery piece) is removed, a new battery piece (not marked on the figure) and a front welding strip connected with the new battery piece are replaced, the front welding strip is placed on the bottom plate 1, a round wire area (not marked on the figure) of the front welding strip is ensured to fall into the first area 21, a rolling area (not marked on the figure) of the welding strip falls into the second area 22, and the replaced new battery piece and the previous battery piece are welded together by utilizing the mutual matching of a pressing piece (not marked on the figure), a clamping jaw (not marked on the figure) and a heating device (not marked on the figure).
According to the embodiment, the solder strip positioning device provided by the embodiment at least has the following beneficial effects:
the welding strip positioning device provided by the embodiment comprises a bottom plate 1 used for bearing a battery piece and a welding strip, wherein at least one groove 2 extending along a first direction X is formed in the bottom plate 1, the groove 2 comprises a first area 21 and a second area 22 communicated with the first area 21 along the first direction X, the second area 22 is positioned at the end part of the bottom plate 1, the width of the first area 21 along a second direction Y is smaller than that of the second area 22 along the second direction Y, the depth of the first area 21 along a third direction Z is larger than that of the second area 22 along the third direction Z, a round wire area of the welding strip falls into the first area 21, a rolling area of the welding strip falls into the second area 22, and the round wire area and the rolling area of the welding strip are respectively positioned and limited, so that defects such as welding strip distortion in the repair process are prevented.
In an embodiment, the solder strip positioning device further includes an adsorption hole 3, the adsorption hole 3 includes a first adsorption hole 31 located on the second region 22, the first adsorption hole 31 is used for adsorbing a rolled region of the solder strip, the first adsorption hole 31 may be arranged along the first direction X, the number of the first adsorption hole 31 may be 2, and certainly, the first adsorption hole 31 may also be designed according to the length of the second region 22 along the second direction Y, which is not specifically limited herein, and on the basis of the self weight of the solder strip and the second region, by forming the first adsorption hole 31 on the second region 22, the rolled solder strip is adsorbed by the first adsorption hole 31, and is stably attached to the second region, so that a more stable limit on the solder strip is achieved, and further, the rolled region of the solder strip is more effectively prevented from being distorted.
In one embodiment, the solder strip positioning device further comprises an adsorption hole 3, the adsorption hole 3 comprises a second adsorption hole 32 located on the bottom plate 1, and the second adsorption hole 32 is used for adsorbing a battery piece;
the second adsorption hole 32 has no overlap with the groove 2 in the orthogonal projection perpendicular to the base plate 1.
Specifically, still include adsorption hole 3 on the solder strip positioner, adsorption hole 3 is including being located the second adsorption hole 32 on bottom plate 1, utilize second adsorption hole 32 to adsorb the battery piece of placing on bottom plate 1, make the battery piece hug closely on bottom plate 1, second adsorption hole 32 can be the matrix mode and arrange, the second adsorption hole 32 that utilizes the matrix to arrange adsorbs the battery piece more evenly, avoid the battery piece to take place the distortion more effectively, second adsorption hole 32 is in the orthographic projection of perpendicular to bottom plate 1 and recess 2 at the orthographic projection non-overlapping of perpendicular to bottom plate 1, can understand and be: the grooves 2 and the second adsorption holes 32 are distributed in a staggered manner, for example, in the second direction Y, the second adsorption holes 32 arranged in the first direction X and the grooves 2 extending in the first direction X are distributed in a staggered manner.
In one embodiment, an adsorption pipeline 4 communicated with the adsorption holes 3 is arranged in the bottom plate 1, an adsorption device communicated with the adsorption pipeline 4 is arranged on the outer surface of the bottom plate 1, each adsorption hole 3 on the bottom plate 1 is communicated with the adsorption pipeline 4, and the adsorption pipeline 4 is communicated with the adsorption device (not shown in the figure), that is, the adsorption device (not shown in the figure) is communicated with each adsorption hole 3 through the adsorption pipeline 4, so that the battery pieces and the solder strips placed on the bottom plate 1 are adsorbed.
In one embodiment, the adsorption holes 3 further include a second adsorption hole 32 located on the base plate 1, and the diameter of the first adsorption hole 31 is smaller than that of the second adsorption hole 32, so that the battery piece can be adsorbed onto the base plate 1 more stably.
In one embodiment, the length of the second region 22 along the first direction X ranges from 7mm to 13mm.
Specifically, if the length of the second area 22 in the first direction X is less than 7mm, the length of the second area 22 is smaller than the length of the rolled area of the solder strip, so that the rolled area of the solder strip is difficult to fall into the second area 22, and if the length of the second area 22 in the first direction X is greater than 13mm, the positioning effect is weakened, and the purpose of separating and limiting cannot be achieved, so that the length range of the second area 22 in the first direction X is designed to be between 7mm and 13mm, which not only enables the length of the second area 22 to be greater than the length of the rolled area of the solder strip, and enables the rolled area of the solder strip to fall into the second area 22 smoothly, but also improves the positioning effect, and achieves the purpose of separating and limiting; in particular, the length of the second region 22 in the first direction X may be 7mm, 10mm or 13mm.
In one embodiment, second region 22 protrudes toward recess 2 adjacent first region 21 to form arcuate structure 5, and the weld bead is better positioned by designing arcuate structure 5 at the juncture of first region 21 and second region 22 to better match the juncture of the round wire region and the rolled region of the weld bead.
In one embodiment, the second region 22 has a width in the second direction Y in the range of 0.43mm to 0.48mm and a depth in the third direction Z in the range of 0.1mm to 0.15mm.
Specifically, if the width of the second region 22 along the second direction Y is less than 0.43mm, and the depth of the second region 22 along the third direction Z is less than 0.1mm, the rolled region of the solder strip cannot be effectively positioned; if the width of the second area 22 along the second direction Y is greater than 0.48mm, and the depth of the second area 22 along the third direction Z is greater than 0.15mm, the risk of solder strip desoldering exists, so that the width range of the second area 22 along the second direction Y is designed to be 0.43mm-0.48mm, and the depth range of the second area 22 along the third direction Z is designed to be 0.1mm-0.15mm, which not only can ensure effective positioning of the rolled area of the solder strip, but also can reduce the risk of solder strip desoldering; in particular, the width of the second region 22 in the second direction Y may be 0.43mm, 0.45mm or 0.48mm, and the depth of the second region 22 in the third direction Z may be 0.1mm, 0.13mm or 0.15mm.
In one embodiment, the width of the first region 21 in the second direction Y ranges from 0.28mm to 0.32mm, and the depth of the first region 21 in the third direction Z ranges from 0.13mm to 0.22mm.
Specifically, if the width of the first region 21 along the second direction Y is less than 0.28mm, and the depth of the first region 21 along the third direction Z is less than 0.13mm, the circular wire region of the solder strip cannot be effectively positioned; if the width of the first area 21 along the second direction Y is greater than 0.32mm and the depth of the first area 21 along the third direction Z is greater than 0.22mm, the circular wire area of the welding strip is at a desoldering risk, so that the width range of the first area 21 along the second direction Y is designed to be 0.28mm-0.32mm, and the depth range of the first area 21 along the third direction Z is designed to be 0.13mm-0.22mm, which not only can ensure the effective positioning of the circular wire area of the welding strip, but also can reduce the desoldering risk of the welding strip;
it should be noted that: according to the diameter R of the solder strip, the width of the first region 21 in the second direction Y may be set to [ W = (R + 0.02) to (R + 0.04) ] mm, and if the diameter of the round wire region of the solder strip is 0.26mm, the width of the first region 21 in the second direction Y is set to 0.28mm to 0.32mm; depending on the solder ribbon diameter R, the depth of the first region 21 in the third direction Z may be designed to be (D = R/2-R × 85%), for example, the diameter of the circular wire region of the solder ribbon is 0.26mm, and the depth of the first region 21 in the third direction Z is designed to be 0.13mm-0.22mm.
In one embodiment, the spacing between adjacent grooves 2 in the second direction Y is in the range of 6mm to 12mm.
Specifically, the distance between the adjacent grooves 2 in the second direction Y is less than 6mm, or the distance between the adjacent grooves 2 in the second direction Y is greater than 12mm, the solder strip cannot fall into the groove 2, and the product requirement cannot be met, therefore, the distance between the adjacent grooves 2 in the second direction Y is designed to be 6mm to 12mm, which can ensure that the solder strip falls into the groove 2, and meet the product requirement, for example, with 182 batteries, the distance between the adjacent grooves 2 in the second direction Y is 10.5mm, and other batteries can be designed according to the distance between the adjacent main grids in the battery piece screen printing plate, that is: and keeping the distance between the adjacent grooves 2 along the second direction Y consistent with the distance between the adjacent main grids in the battery piece screen printing plate.
FIG. 5 is a schematic view of a construction of a rework machine provided in accordance with the present invention; referring to fig. 5, the present embodiment provides a repair machine, which includes a solder strip positioning device, the solder strip positioning device is the above-mentioned solder strip positioning device, the repair machine can be a string repair machine, the repair machine has a battery string feeding and discharging area a, a string EL (electroluminescence) detection area b, a chip changing repair area c, a rosin joint/offset welding repair area d, and a battery chip box feeding and discharging area e, and the solder strip positioning device is located in the chip changing repair area c.
Fig. 6 is a schematic flow chart of a battery string repairing method according to the present invention, and referring to fig. 6 and in combination with fig. 1 to 3, the present embodiment provides a battery string repairing method, which includes the following steps of respectively placing at least two connected battery pieces 100 on corresponding solder strip positioning devices with the front surfaces facing downward, wherein at least some of the solder strip positioning devices are the solder strip positioning devices; the battery piece 100 is corrected, so that a round wire area (not marked on the figure) of a welding strip on the front side of the battery piece 100 falls into a first area 21; heating the welding strip 300 and the battery piece 100 on the back surface in sequence by using the heating device 200, separating the adjacent battery pieces 100, and enabling a rolling area (not shown) of the welding strip to fall into the second area 22; replacing a new battery piece 100b on at least one welding strip positioning device, so that a round wire area of the welding strip is positioned in a first area 21, and a rolled area of the welding strip is positioned in a second area 22; the pressing member 500, the clamping jaw 400 and the heating device 200 are mutually matched, and the welding strips 300 are welded on the adjacent battery plates 100 in sequence.
Specifically, the method for repairing the battery string can be a rolling welding strip anti-twisting method, and is explained by taking an example that 3 battery pieces in the battery string are respectively placed in 3 welding strip positioning devices, specifically as follows: after the battery string is visually positioned, placing each battery piece in the battery string on a string repairing platform with the front surface facing downwards, wherein the string repairing platform comprises 1 original welding strip positioning device A and at least two welding strip positioning devices, the at least two welding strip positioning devices comprise a welding strip positioning device B and a welding strip positioning device C, and placing a piece 100a to be repaired on the welding strip positioning device B;
the battery string is corrected by using a battery string positioning mechanism, and a round wire area of a welding strip on the front side of the battery piece is ensured to fall into a first area 21;
heating by using the heating device 200, moving the welding strip positioning device C to the right, separating the welding strip 300 on the upper back surface of the welding strip positioning device B from the battery piece, and separating the battery piece from the welding strip 300 on the welding strip positioning device B from the battery piece by repeating the actions when the welding strip is subjected to self weight or the rolling area of the welding strip falls into the second area 22 under the self weight of the welding strip and the adsorption effect of the first adsorption hole 31; the heating device 200 may be a lamp box;
the robot takes pictures of the piece to be repaired 100a (including the front welding strip connected with the battery piece) on the welding strip positioning device B, positions the piece, and then grabs the piece, replaces a new battery piece 100B (including the front welding strip connected with the new battery piece) according to the positioning parameters, and places the new battery piece on the welding strip positioning device B, so that the round wire area of the welding strip is ensured to fall into the first area 21, and the rolling area of the welding strip falls into the second area 22;
the welding strip positioning device B moves leftwards, the end part of the welding wire falls into the V-shaped groove of the clamping jaw 400 completely, and the clamping jaw 400 clamps the welding wire; the clamping jaw 400 and the welding strip positioning device B synchronously move to the left to the designated position;
after the pressing needle 500 descends to the pre-pressing position and the clamping jaw 400 stretches the welding strip 300, the pressing needle 500 descends to the welding position while moving leftwards, the heating device 200 heats and completes welding, and the actions are repeated to complete welding of the battery piece on the welding strip positioning device C and the battery piece on the welding strip positioning device B.
By the embodiment, the method for repairing the battery string at least achieves the following beneficial effects:
in the method for repairing the battery string provided by the embodiment, the heating device is used for sequentially heating the welding strip and the battery piece on the back surface, and the rolling area of the welding strip falls into the second area after the adjacent battery pieces are separated; and replacing a new battery piece and placing the new battery piece on at least one welding strip positioning device, so that the circular wire area of the welding strip is positioned in the first area, and the rolling area of the welding strip is stably flatly attached to the second area, thereby avoiding the welding strip from being distorted.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (12)
1. The welding strip positioning device is characterized by comprising a bottom plate used for bearing a battery piece and a welding strip, wherein at least one groove extending along a first direction is formed in the bottom plate, the groove comprises a first area and a second area communicated with the first area along the first direction, the second area is located at the end of the bottom plate, the width of the first area along the second direction is smaller than that of the second area along the second direction, the depth of the first area along the third direction is larger than that of the second area along the third direction, the lower surface of the bottom plate points to the upper surface of the bottom plate in the third direction, and the first direction, the second direction and the third direction are intersected in pairs.
2. The solder strip positioning device according to claim 1, further comprising suction holes on the solder strip positioning device, wherein the suction holes comprise first suction holes on the second area, and the first suction holes are used for sucking the battery piece and the solder strip.
3. The solder strip positioning device according to claim 1, further comprising suction holes, wherein the suction holes comprise a second suction hole located on the bottom plate, and the second suction hole is used for sucking the battery piece;
the orthographic projection of the second adsorption hole perpendicular to the bottom plate is not overlapped with the orthographic projection of the groove perpendicular to the bottom plate.
4. The solder strip positioning device according to claim 2 or 3, wherein an adsorption pipeline communicated with the adsorption hole is arranged in the bottom plate, and an adsorption device communicated with the adsorption pipeline is arranged on the outer surface of the bottom plate.
5. The solder strip positioning device according to claim 2, wherein the suction holes further include a second suction hole on the bottom plate, and a diameter of the first suction hole is smaller than a diameter of the second suction hole.
6. The solder strip positioning device of claim 1, wherein the length of the second region in the first direction is in a range of 7mm to 13mm.
7. The solder strip positioning device of claim 1, wherein a side of the second region adjacent the first region is convex toward the recess to form an arcuate configuration.
8. The solder strip positioning device of claim 1, wherein the width of the second area in the second direction is in a range of 0.43mm to 0.48mm, and the depth of the second area in the third direction is in a range of 0.1mm to 0.15mm.
9. The solder ribbon positioning apparatus of claim 1, wherein the width of the first area in the second direction is in a range of 0.28mm to 0.32mm, and the depth of the first area in the third direction is in a range of 0.13mm to 0.22mm.
10. A solder strip positioning device as claimed in any one of claims 1 to 3, wherein the spacing between adjacent recesses in the second direction is in the range of 6mm to 12mm.
11. A repair machine comprising a solder strip positioning device according to any one of claims 1 to 10.
12. A method for repairing a battery string is characterized by comprising the following steps,
placing at least two connected battery pieces on corresponding welding strip positioning devices respectively with the front surfaces facing downwards, wherein at least part of the welding strip positioning devices are the welding strip positioning devices in any one of claims 1-10;
the battery piece is corrected, so that a round wire area positioned on a welding strip on the front side of the battery piece falls into a first area;
heating the welding strip and the battery piece on the back face in sequence by using a heating device, and separating adjacent battery pieces to enable the rolling area of the welding strip to fall into a second area;
replacing a new battery piece and placing the new battery piece on at least one welding strip positioning device, so that a round wire area of a welding strip is positioned in a first area, and a rolling area of the welding strip is positioned in a second area;
and the pressing piece, the clamping jaw and the heating device are mutually matched, and the welding strips are sequentially welded on the adjacent battery pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211406486.XA CN115799386A (en) | 2022-11-10 | 2022-11-10 | Welding strip positioning device, battery string repair method and repair machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211406486.XA CN115799386A (en) | 2022-11-10 | 2022-11-10 | Welding strip positioning device, battery string repair method and repair machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115799386A true CN115799386A (en) | 2023-03-14 |
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ID=85436709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211406486.XA Pending CN115799386A (en) | 2022-11-10 | 2022-11-10 | Welding strip positioning device, battery string repair method and repair machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115799386A (en) |
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2022
- 2022-11-10 CN CN202211406486.XA patent/CN115799386A/en active Pending
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