Bearing mechanism and series welding machine

Abstract

The utility model discloses a bearing mechanism and a series welding machine, the bearing mechanism comprises a bearing assembly, an adsorption assembly and a neatening assembly, the bearing assembly is at least configured to bear a battery piece group and a welding strip group, n combination positions are formed on the bearing assembly at intervals, each combination position is used for laying one battery piece and the corresponding welding strip group located below the battery piece, the adsorption assembly is configured to adsorb and fix the welding strip group on each combination position before the battery pieces are laid, and adsorb and fix the battery pieces and the welding strip groups on each combination position after the battery pieces are laid; and the arranging assembly is configured to arrange each welding strip of the welding strip group adsorbed by the adsorption assembly on each combination position before the battery pieces are laid, so that each welding strip is located at a preset position. According to the bearing mechanism, through the arrangement assembly, arrangement of each welding strip of the welding strip group on each combination position is achieved before the battery pieces are laid, so that each welding strip is located at a preset position, and the reject ratio of series welding of the battery strings is greatly reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of photovoltaic module production equipment, and in particular relates to a bearing mechanism and a string welding machine. Background Art

[0002] When the existing back-contact battery strings are assembled, the solder ribbon group is generally laid on the supporting mechanism of the string assembly station first, and then the battery cell group is laid on the solder ribbon group. The supporting mechanism is provided with an adsorption component to adsorb the laid solder ribbon group and battery cell group.

[0003] The welding ribbon group is generally carried to the carrying mechanism together by clamping both ends of each welding ribbon through multiple sets of clamps of the conveying mechanism, and then the welding ribbon group falls on the carrying mechanism. Since the welding ribbon is very thin, it is easy for the welding ribbon to deviate when it is separated from the clamps of the conveying mechanism and falls to the carrying mechanism by its own weight, resulting in the whitening of the grid lines of the battery cells in the battery string after stringing. Utility Model Content

[0004] The purpose of the present application is to provide a bearing mechanism to solve the problem in the prior art that the welding ribbon is easily offset when the welding ribbon group is laid; in addition, another purpose of the present application is to provide a string welding machine including the bearing mechanism.

[0005] To achieve this goal, this application adopts the following technical solutions:

[0006] In a first aspect, the present application proposes a bearing mechanism, which includes a bearing component, an adsorption component and a regularization component, wherein:

[0007] The carrier assembly is at least configured to carry a battery cell group and a welding ribbon group, and n combination positions are formed on the carrier assembly at intervals along a first direction, each combination position is used to lay a battery cell and a corresponding welding ribbon group located below the battery cell, and n is a positive integer ≥ 2;

[0008] The adsorption component is arranged on the carrying component, and the adsorption component is configured to adsorb and fix the welding ribbon group on each combination position on the combination position before the battery cells are laid, and the adsorption component is further configured to adsorb and fix the battery cells and welding ribbon group on each combination position on the combination position after the battery cells are laid;

[0009] The arranging component is configured to arrange each soldering ribbon of the soldering ribbon group adsorbed by the adsorption component at each combination position before the battery cells are laid out, so that each soldering ribbon is located at a preset position.

[0010] The supporting mechanism proposed in the present application realizes the regularization of each welding ribbon of the welding ribbon group adsorbed by the adsorption component on each combination position before the battery cells are laid through the regularization component, so as to correct the offset welding ribbon, so that each welding ribbon is located at a preset position, which greatly reduces the exposure of the battery cell grid lines of the battery string after the stringing, thereby greatly reducing the defective rate of the battery string welding and improving the welding quality of the battery string.

[0011] Optionally, the tidying component is arranged below the bearing component, and the tidying component comprises a first driving component and n tidying parts, wherein: each tidying part corresponds to an assembly position, and the tidying part is configured to tidy each welding ribbon of the welding ribbon group on the corresponding assembly position before the battery sheet is laid, and an avoidance hole corresponding to each tidying part is opened on the bearing component, and the driving end of the first driving component is connected to the n tidying parts, and the first driving component is configured to at least drive the n tidying parts to rise to the first position synchronously or fall to the second position synchronously;

[0012] The first driving component drives n regularization parts to rise to the first position, and each regularization part extends out of the bearing surface of the bearing component through the avoidance hole to regularize each welding ribbon of the welding ribbon group at the corresponding combination position;

[0013] The first driving assembly drives the n regularization parts to descend to the second position, and each regularization part retracts to below the bearing surface of the bearing assembly through the avoidance hole to avoid the battery cells to be laid subsequently.

[0014] By setting the arranging component below the supporting component, the first driving component drives n arranging parts to rise and fall synchronously, so as to arranging each welding strip of the welding strip group on the corresponding combination position and avoid the subsequent battery cells to be laid, thereby achieving the simultaneous arranging of each welding strip on all combination positions, and providing a arranging component with compact structure, reasonable layout and high arranging efficiency.

[0015] Optionally, each regularizing portion includes a first regularizing piece and a second regularizing piece, and each combination position on the carrier component is provided with a first avoidance hole and a second avoidance hole at intervals. The first regularizing piece is arranged corresponding to the first avoidance hole, and the second regularizing piece is arranged corresponding to the second avoidance hole. The first avoidance hole provides avoidance for the lifting and lowering of the first regularizing piece, and the second avoidance hole provides avoidance for the lifting and lowering of the second regularizing piece. The first regularizing piece is configured to regularize the first end of each solder strip of the solder strip group on the corresponding combination position, and the second regularizing piece is configured to regularize the second end of each solder strip of the solder strip group on the corresponding combination position.

[0016] By setting the first regularizing piece and the second regularizing piece, and opening the first avoidance hole and the second avoidance hole on the bearing component, the two ends of each welding strip of the welding strip group on the corresponding combination position are regularized so that each welding strip is located at a preset position, providing a regularizing part with a simple structure, easy implementation, high regularizing efficiency and good regularizing effect.

[0017] Optionally, the first driving component includes a base, a first driving member, a first transmission component, a lifting member and a supporting member. The lifting member is mounted on the base in a liftable manner, the supporting member is mounted on the lifting member, n regular parts are arranged on the supporting member at intervals along a first direction, and the first driving member drives the lifting member to move up and down through the first transmission component.

[0018] Through the cooperation of the first driving member, the first transmission assembly, the lifting member and the supporting member, it is possible to drive n regular parts to rise and fall synchronously, providing a first driving assembly with a simple structure, low cost and stable and reliable operation.

[0019] Optionally, the top surfaces of the first regularized piece and the second regularized piece are both provided with a plurality of first regularized grooves spaced apart along the second direction, each first regularized groove corresponds to a welding strip, and each first regularized groove of the first regularized piece corresponds one to one with each first regularized groove of the second regularized piece;

[0020] The first regularization groove includes an opening section and a regularization section arranged from top to bottom, the width of the upper opening of the opening section is at least 1.5 times the width of the welding strip, the lower opening of the opening section is connected to the regularization section, the width of the opening section is continuously reduced from the upper opening to the lower opening, the width of the regularization section is at least 0.1 mm larger than the width of the welding strip, and the first direction is perpendicular to the second direction;

[0021] The first driving component drives n regularization parts to rise to the first position, the first end of each welding strip falls into the corresponding first regularization groove on the first regularization piece, and the second end of each welding strip falls into the corresponding first regularization groove on the second regularization piece, so as to regularize each welding strip through the regularization sections of the first regularization grooves of the first regularization piece and the second regularization piece.

[0022] By setting a plurality of first regularization grooves at intervals on the top surfaces of the first regularization piece and the second regularization piece, and setting the first regularization groove so that the width of the opening section is continuously reduced from the upper end opening to the lower end opening, the width of the regularization section is at least 0.1 mm larger than the diameter of the welding strip, so that when the n regularization parts rise to the first position, the two ends of each welding strip fall into the corresponding first regularization grooves of the two regularization pieces, and the two ends of the welding strip are regularized by the regularization sections of the first regularization grooves. A regularization component with simple structure, low cost and high regularization efficiency is provided.

[0023] Optionally, when the welding strip adopts a flat welding strip with a width of 0.6mm, the width of the upper opening of the opening section is 1-2mm, and the width of the lower opening of the opening section and the regular section is 0.7-0.9mm, among which the width of the upper opening of the opening section is preferably 1.5mm, and the width of the lower opening of the opening section and the regular section is preferably 0.8mm.

[0024] By setting the dimensions of the upper opening, the lower opening and the regularizing section of the opening section, the regularizing effect of the first regularizing piece and the second regularizing piece on the flat welding strip is ensured.

[0025] Optionally, when the welding strip is a round welding strip with a width of 0.3 mm, the width of the upper opening of the opening section is 1-2 mm, and the width of the lower opening of the opening section and the regular section is 0.4-0.8 mm. Among them, the width of the upper opening of the opening section is preferably 1 mm, and the width of the lower opening of the opening section and the regular section is preferably 0.5 mm.

[0026] By setting the dimensions of the upper opening, the lower opening and the regularizing section of the opening section, the regularizing effect of the first regularizing piece and the second regularizing piece on the circular welding strip is ensured.

[0027] Optionally, the first drive component is also configured to drive n regularization parts to reciprocate along a second direction, the first direction is perpendicular to the second direction, the first drive component also includes a second drive member and a second transmission member, the support member can be reciprocated along the second direction and is installed on the lifting member, the second drive member drives the support member to reciprocate along the second direction through the second transmission member.

[0028] Through the cooperation of the second driving member and the second transmission assembly, the driving support member is driven to move back and forth along the second direction, thereby providing a first driving assembly with both lifting and horizontal movement along the second direction.

[0029] Optionally, the top surfaces of the first regularized piece and the second regularized piece are both provided with a plurality of first regularized grooves spaced apart along the second direction, each first regularized groove corresponds to a welding strip, and each first regularized groove of the first regularized piece corresponds one to one with each first regularized groove of the second regularized piece;

[0030] The first regularization groove includes an opening section and a regularization section arranged from top to bottom, the width of the upper opening of the opening section is at least 1.5 times the width of the welding strip, the lower opening of the opening section is connected to the regularization section, the width of the opening section is continuously reduced from the upper opening to the lower opening, the width of the regularization section is at least 0.1 mm larger than the width of the welding strip, and the first direction is perpendicular to the second direction;

[0031] The first driving component drives the n regularization parts to rise to the first position, and the first end of each welding strip falls into the corresponding first regularization groove on the first regularization piece, and the second end of each welding strip falls into the corresponding first regularization groove on the second regularization piece, so as to regularize each welding strip through the regularization sections of the first regularization grooves of the first regularization piece and the second regularization piece;

[0032] The top surfaces of the first regularized piece and the second regularized piece are also provided with a plurality of first positioning grooves corresponding to the first regularized grooves one by one, each first positioning groove is located on one side of a first regularized groove, each first positioning groove corresponds to a welding strip, each first positioning groove of the first regularized piece corresponds to each first positioning groove of the second regularized piece one by one, and the width of the first positioning groove is the same as the width of the regularized section;

[0033] The first driving component is also configured to drive the regularizing part to move along the second direction so that the first positioning groove is located directly below the corresponding welding strip; the first driving component is also configured to drive the n regularizing parts to rise to the third position so that each welding strip part falls into the corresponding first positioning groove, and the upper surface of the first regularizing part and the second regularizing part is higher than the bearing surface of the bearing component and lower than the upper surface of the welding strip. After the battery cell is laid on the welding strip group, the first driving component drives the n regularizing parts to descend to the second position.

[0034] By setting a plurality of first regularization grooves at intervals on the top surfaces of the first regularization piece and the second regularization piece, and setting the first regularization groove so that the width of the opening section is continuously reduced from the upper end opening to the lower end opening, the width of the regularization section is at least 0.1 mm larger than the diameter of the welding strip, so that when the n regularization parts rise to the first position, the two ends of each welding strip fall into the corresponding first regularization grooves of the two regularization parts, and the regularization sections of the first regularization grooves are used to regularize the two ends of the welding strip. A regularization component with a simple structure, low cost and high regularization efficiency is provided; at the same time, a first positioning groove is set on one side of each first regularization groove, and through the cooperation of the first driving component and the regularization part, each welding strip is partially dropped into the corresponding first positioning groove after being regularized by the first regularization groove, and the first positioning groove is limited to avoid the displacement of the welding strip when the battery cell is laid, further improving the string welding quality of the battery string.

[0035] Optionally, the top surfaces of the first regularized piece and the second regularized piece are both provided with a plurality of second regularized grooves spaced apart along the second direction, each second regularized groove corresponds to a welding strip, each second regularized groove of the first regularized piece corresponds one to one with each second regularized groove of the second regularized piece, and the width of the second regularized groove is greater than the diameter of the welding strip;

[0036] The first driving component drives the n regularizing parts to rise to the first position, so that the first end of each welding strip falls into the corresponding second regularizing groove on the first regularizing piece, and the second end of each welding strip falls into the corresponding second regularizing groove on the second regularizing piece; the first driving component drives the n regularizing parts to move back and forth along the second direction, so as to drive the corresponding welding strips to move through the second regularizing grooves of the first regularizing piece and the second regularizing piece, so as to regularize each welding strip and make the welding strips in a preset position.

[0037] By arranging a plurality of second regularizing grooves on the top surfaces of the first regularizing piece and the second regularizing piece at intervals, the width of the second regularizing grooves is greater than the diameter of the welding strip, so that when the n regularizing parts rise to the first position, the two ends of each welding strip fall into the corresponding second regularizing grooves of the two regularizing parts, and then the first driving component drives the n regularizing parts to reciprocate along the second direction, and the corresponding welding strips are driven to move through the second regularizing grooves of the first regularizing piece and the second regularizing piece to regularize each welding strip, thereby further improving the regularization efficiency.

[0038] Optionally, the top surfaces of the first regularized piece and the second regularized piece are further provided with a plurality of second positioning grooves corresponding to the second regularized grooves one by one, each second positioning groove is located on one side of a second regularized groove, each second positioning groove corresponds to a welding strip, each second positioning groove of the first regularized piece corresponds to each second positioning groove of the second regularized piece one by one, and the width of the second positioning groove is at least 0.1 mm larger than the diameter of the welding strip;

[0039] The first driving component is also configured to drive the regularizing part to move along the second direction so that the second positioning groove is located directly below the corresponding welding strip; the first driving component is also configured to drive the n regularizing parts to rise to the third position so that each welding strip part falls into the corresponding second positioning groove, and the upper surface of the first regularizing part and the second regularizing part is higher than the bearing surface of the bearing component and lower than the upper surface of the welding strip. After the battery cell is laid on the welding strip group, the first driving component drives the n regularizing parts to descend to the second position.

[0040] By setting a second positioning groove on one side of each second regularizing groove, and through the cooperation of the first driving component and the regularizing part, each welding strip can partially fall into the corresponding second positioning groove after being regularized by the second regularizing groove. The second positioning groove is limited to avoid displacement of the welding strip when the battery cell is laid, thereby further improving the welding quality of the battery string.

[0041] Optionally, the width of the second regular groove is 1-3 mm, and preferably the width of the second regular groove is 1.5 mm.

[0042] By setting the width of the second regularizing groove, the regularizing effect of the first regularizing piece and the second regularizing piece is ensured.

[0043] Optionally, the adsorption component includes a plurality of negative pressure adsorption holes opened on the bearing surface of each combination position of the bearing component, the plurality of negative pressure adsorption holes are connected to the negative pressure channel, and the negative pressure channel is connected to the vacuum device;

[0044] The plurality of negative pressure adsorption holes include a plurality of middle adsorption holes, a plurality of first end adsorption holes and a plurality of second end adsorption holes. The plurality of middle adsorption holes are located between the first avoidance hole and the second avoidance hole of each combination position, the plurality of first end adsorption holes are located outside the first avoidance hole of each combination position, and the plurality of second end adsorption holes are located outside the second avoidance hole of each combination position.

[0045] Through the coordination of a plurality of negative pressure adsorption holes, a negative pressure channel and a vacuum extraction device, an adsorption component using negative pressure adsorption is provided; by arranging a plurality of intermediate adsorption holes between the first avoidance hole and the second avoidance hole of each combination position, arranging a plurality of first end adsorption holes on the outside of the first avoidance hole of each combination position, and arranging a plurality of second end adsorption holes on the outside of the second avoidance hole of each combination position, the coverage area of ​​the negative pressure adsorption holes on the corresponding combination position is increased, thereby improving the stability and reliability of the adsorption of the adsorption component.

[0046] Optionally, the carrying mechanism further includes a heating component, which is located below the carrying component and is configured to heat the carrying component and the battery cell group and welding ribbon group carried by the carrying component.

[0047] By providing a heating component, the automatic heating function of the carrying component and the battery cell group and welding ribbon group carried by it is realized.

[0048] In a second aspect, the present application further proposes a string welding machine, which includes a string assembly mechanism, a welding mechanism, the above-mentioned bearing mechanism and a first conveying mechanism, wherein:

[0049] The string welding machine is sequentially provided with a string assembly station and a welding station along a first direction, a driving end of a first conveying mechanism is connected to a bearing mechanism, and the first conveying mechanism is configured to drive the bearing mechanism to move alternately to the string assembly station and the welding station, the string assembly mechanism is arranged at the string assembly station, and the welding mechanism is arranged at the welding station;

[0050] The first conveying mechanism drives the carrying mechanism to move to the string assembly station, the string assembly mechanism is configured to lay the welding tape group on each assembly position of the carrying component, the regularization component is configured at the string assembly station to regularize each welding tape of the welding tape group adsorbed by the adsorption component, and the string assembly mechanism is further configured to lay the battery cell group on the regularized welding tape group to string the battery cell group and the welding tape group;

[0051] The first conveying mechanism drives the carrying mechanism to move to the welding station to move the battery cell group and welding strip group after stringing on the carrying assembly to the welding station. The welding mechanism is configured to perform string welding on the welding group and battery cell group after stringing on the carrying mechanism located at the welding station.

[0052] Through the cooperation of the string assembly mechanism, the welding mechanism, the bearing mechanism and the first conveying mechanism, automatic string assembly and string welding of the battery cell group and the welding ribbon group are realized, and the working efficiency is high; at the same time, the regularization component can regularize each welding ribbon of the welding ribbon group adsorbed by the adsorption component at the string assembly station to correct the offset welding ribbon, so that each welding ribbon is located at a preset position, which greatly reduces the exposure of the battery cell grid lines of the battery string after string assembly, thereby greatly reducing the defective rate of the battery string welding and improving the string welding quality of the battery string.

[0053] Optionally, the first conveying mechanism includes a third driving member, a first pulley, a second pulley and a transmission belt, the first pulley and the second pulley are spaced apart along the first direction, the transmission belt is mounted on the first pulley and the second pulley, the transmission belt is fixedly connected to the supporting mechanism, the driving end of the third driving member is connected to the first pulley or the second pulley, and the third driving member is configured to drive the first pulley or the second pulley to rotate, so as to drive the transmission belt to rotate.

[0054] Through the cooperation of the third driving member, the first pulley, the second pulley and the transmission belt, a first conveying mechanism using pulleys and belts to drive the bearing mechanism to move back and forth is provided, which has a simple structure, is easy to implement, has low cost, and is convenient for subsequent repair and maintenance.

[0055] Optionally, the string welding machine also includes a battery string transport mechanism, and the string welding machine is also provided with a unloading station located after the welding station along the first direction. The first conveying mechanism is also configured to drive the carrying mechanism to move to the unloading station to move the battery cell group and the welding ribbon group welded at the welding station to the unloading station, and the battery string transport mechanism is configured to transport the battery cell group and the welding ribbon group at the unloading station to the next process.

[0056] By setting up a battery string transport mechanism and a material unloading station after the welding station, automatic unloading of the battery strings after string welding is achieved, further improving work efficiency.

[0057] In a third aspect, the present application further proposes a string welding machine, which includes a string assembly mechanism, a welding mechanism, a first auxiliary carrying mechanism, the carrying mechanism, and a second conveying mechanism, wherein:

[0058] The string welding machine is provided with a string assembly station and a welding station in sequence along the first direction, and the second conveying mechanism is configured to convey the battery cell group and the welding ribbon group to be string welded from the string assembly station to the welding station;

[0059] The second conveying mechanism includes a fourth driving member, a conveying frame and a conveying belt, the conveying belt is rotatably mounted on the conveying frame, and the fourth driving member is configured to drive the conveying belt to rotate;

[0060] The bearing mechanism is located below the conveyor belt at the string assembly station, and the bearing assembly is also configured to bear the conveyor belt. The battery cell group and the welding belt group are laid on the conveyor belt. A third avoidance hole for avoiding the regularization part is provided corresponding to each assembly position on the conveyor belt. A fourth avoidance hole is also provided corresponding to each assembly position on the conveyor belt. The adsorption assembly adsorbs the battery cell group and the welding belt group through the fourth avoidance hole.

[0061] The string assembly mechanism is arranged at the string assembly station, and is configured to lay the welding tape group on the conveyor belt located at the string assembly station. The regularization component is arranged at the string assembly station to regularize each welding tape of the welding tape group adsorbed by the adsorption component. The string assembly mechanism is also configured to lay the battery cell group on the welding tape group after regularizing the welding tape group, so as to string the battery cell group and the welding tape group.

[0062] The first auxiliary carrying mechanism is arranged at the welding station, and is configured to carry the conveyor belt passing through the welding station, and is further configured to fix the welding belt group and the battery cell group on the conveyor belt by negative pressure adsorption;

[0063] The welding mechanism is arranged at the welding station, and is configured to perform string welding on the welding group and the battery cell group after stringing on the conveyor belt at the welding station.

[0064] Through the cooperation of the string assembly mechanism, the welding mechanism, the bearing mechanism and the second conveying mechanism, the automatic string assembly and string welding of the battery cell group and the welding tape group are realized, and the working efficiency is high; at the same time, the regularization component can regularize each welding tape of the welding tape group adsorbed by the adsorption component at the string assembly station to correct the offset welding tape, so that each welding tape is located at a preset position, which greatly reduces the exposure of the battery cell grid lines of the battery string after string assembly, thereby greatly reducing the defective rate of the battery string welding and improving the battery string welding quality; the second conveying mechanism adopts the method of conveying the battery cell group and the welding tape group by the conveyor belt. The bearing mechanism is fixed during the conveying process, which reduces the load of the second conveying mechanism and improves the conveying accuracy.

[0065] Optionally, the stringer further comprises a battery string transport mechanism and a second auxiliary carrying mechanism, wherein:

[0066] The string welding machine is also provided with a material unloading station located after the welding station along the first direction, and the circulation track of the conveyor belt passes through the string assembly station, the welding station and the material unloading station in sequence;

[0067] The second auxiliary carrying mechanism is configured to carry the conveyor belt passing through the unloading station, and the second auxiliary carrying mechanism is further configured to fix the welded battery cell group and welding ribbon group sent by the conveyor belt from the welding station to the unloading station through negative pressure adsorption;

[0068] The battery string transport mechanism is configured to transport the welded battery cell group and welding ribbon group located at the unloading station to the next process.

[0069] By setting up a battery string handling mechanism and a material unloading station after the welding station, the automatic unloading of the battery strings after string welding is realized, thereby improving work efficiency; the second auxiliary carrying mechanism is used to carry the conveyor belt passing through the unloading station, and the battery cell group and welding ribbon group after welding are fixed at the unloading station by negative pressure adsorption. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] Figure 1 It is a schematic diagram of the three-dimensional structure of the string welding machine provided in the first embodiment of the present application;

[0071] Figure 2 yes Figure 1 A partial enlarged view of the middle A;

[0072] Figure 3 It is a partial schematic diagram of the bearing assembly of the string welding machine provided in the first embodiment of the present application;

[0073] Figure 4 It is a three-dimensional structural schematic diagram of the regular components of the string welding machine provided in Example 1 of the present application;

[0074] Figure 5 It is a structural schematic diagram of a first regular part of a string welding machine provided in Example 1 of the present application;

[0075] Figure 6 yes Figure 5 A partial enlarged view of point B in the middle;

[0076] Figure 7 It is a structural schematic diagram of another first regular part of the string welding machine provided in Example 1 of the present application;

[0077] Figure 8 yes Figure 7 A partial enlarged view of point C in the middle;

[0078] Fig. 9 This is a structural schematic diagram of another first regular part of the string welding machine provided in the first embodiment of the present application;

[0079] Fig.10 yes Fig. 9 A partial enlarged view of point D in the middle;

[0080] Fig.11 This is a schematic structural diagram of another first regular part of the string welding machine provided in the first embodiment of the present application;

[0081] Fig.12 yes Fig.11 A partial enlarged view of point E in the middle;

[0082] Fig.13 It is a schematic diagram of the three-dimensional structure of the string welding machine provided in the second embodiment of the present application;

[0083] Fig.14 It is a schematic diagram of the three-dimensional structure of the supporting mechanism of the string welding machine provided in the second embodiment of the present application;

[0084] Fig.15 yes Fig.14 A partial enlarged view of the F in the middle;

[0085] Fig.16 It is a three-dimensional structural schematic diagram of the regular components of the string welding machine provided in the second embodiment of the present application;

[0086] Fig.17 yes Fig.16 A partial enlarged view of point G in the middle.

[0087] Figures 1 to 17 The following reference numerals are included:

[0088] Carrying mechanism 10: carrying component 11, first avoidance hole 110, second avoidance hole 111, adsorption component 12, middle adsorption hole 120, first end adsorption hole 121, second end adsorption hole 122, regularization component 13, first driving component 130, base 1300, lifting member 1301, support member 1302, eccentric shaft 1303, eccentric wheel 1304, driving plate 1305, follower hole 1306, second driving member 1307, pulley transmission component 1308, ball screw transmission pair 1309, regularization part 131, first regularization member 1310, second regularization member 1311, first regularization groove 1312, opening section 1313, regularization section 1314, second regularization groove 1315, first positioning groove 1316, second positioning groove 1317;

[0089] Combination position M;

[0090] A first conveying mechanism 20, a third driving member 21, a first pulley 22, a second pulley 23, and a transmission belt 24;

[0091] Stringing station 30, welding station 31, unloading station 32;

[0092] A first auxiliary carrying mechanism 40 and a second auxiliary carrying mechanism 41;

[0093] The second conveying mechanism 50, the fourth driving member 51, the conveying frame 52, the conveying belt 53, the third avoidance hole 530, and the fourth avoidance hole 531;

[0094] Solder ribbon 60. DETAILED DESCRIPTION

[0095] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0096] When the existing back-contact battery strings are assembled, the solder ribbon group is generally laid on the supporting mechanism of the string assembly station first, and then the battery cell group is laid on the solder ribbon group. The supporting mechanism is provided with an adsorption component to adsorb the laid solder ribbon group and battery cell group.

[0097] The welding ribbon group is generally carried to the carrying mechanism together by clamping both ends of each welding ribbon through multiple sets of clamps of the conveying mechanism, and then the welding ribbon group falls on the carrying mechanism. Since the welding ribbon is very thin, it is easy for the welding ribbon to deviate when it is separated from the clamps of the conveying mechanism and falls to the carrying mechanism by its own weight, resulting in the whitening of the grid lines of the battery cells in the battery string after stringing.

[0098] Therefore, this application provides a bearing mechanism, see Figure 1 As shown, the carrying mechanism 10 provided in the embodiment of the present application includes a carrying component 11, an adsorption component 12 and a regular component 13, wherein: the carrying component 11 is at least configured to carry a battery cell group and a welding ribbon group, and the carrying component 11 is along a first direction ( Figure 1 n combination positions M are formed at intervals along the X direction in the direction of the X direction in the drawing, each combination position M is used to lay a battery cell and a corresponding welding tape group located below the battery cell, and n is a positive integer ≥ 2; the adsorption component 12 is arranged on the carrying component 11, and the adsorption component 12 is configured to adsorb and fix the welding tape group on each combination position M on the combination position M before the battery cell is laid, and the adsorption component 12 is also configured to adsorb and fix the battery cell and welding tape group on each combination position M on the combination position M after the battery cell is laid; the regularization component 13 is configured to regularize each welding tape of the welding tape group adsorbed by the adsorption component 12 on each combination position M before the battery cell is laid, so that each welding tape is located at a preset position.

[0099] It should be noted that the ends of the welding ribbon groups on the combination positions M at the head and tail ends of the carrier assembly 11 will protrude from the battery cells, which is convenient for welding with the busbar to achieve electrical connection of the battery string group. Half of the welding ribbon group on the combination position M in the middle part of the carrier assembly 11 is located at the previous adjacent combination position M, so that the battery cells on the two adjacent combination positions M can be electrically connected. The above-mentioned battery string assembly method belongs to the common knowledge in the field and does not need to be elaborated.

[0100] Specifically, n can be 6, 7, 8, 9, 10, 11, 12, 13, 14 or more, and the number of solder strips in the solder strip group is 18, 20, 24 or other numbers of general solder strip groups.

[0101] Specifically, the bearing assembly 11 adopts a split structure, which is formed by splicing n bearing plates along a first direction, and a combination position M is formed on each bearing plate.

[0102] It can be seen that the supporting mechanism 10 proposed in the embodiment of the present application realizes the regularization of each welding ribbon of the welding ribbon group adsorbed by the adsorption component 12 on each combination position M before the battery cells are laid through the regularization component 13, so as to correct the offset welding ribbon, so that each welding ribbon is located at a preset position, which greatly reduces the exposure of the battery cell grid lines of the battery string after stringing, thereby greatly reducing the defective rate of the battery string welding and improving the welding quality of the battery string.

[0103] See also Figures 1 to 4 As shown, as an embodiment, the tidying component 13 is arranged below the bearing component 11, and the tidying component 13 includes a first driving component 130 and n tidying parts 131, wherein: each tidying part 131 corresponds to a combination position M, and the tidying part 131 is configured to tidy each welding strip of the welding strip group on the corresponding combination position M before the battery cell is laid, and an avoidance hole corresponding to each tidying part 131 is opened on the bearing component 11, and the driving end of the first driving component 130 is connected to the n tidying parts 131, and the first driving component 130 is configured to At least n regularization parts 131 are driven to rise to the first position or fall to the second position synchronously; the first driving component 130 drives the n regularization parts 131 to rise to the first position, and each regularization part 131 extends out of the bearing surface of the bearing component 11 through the avoidance hole to regularize each welding strip of the welding strip group on the corresponding combination position M; the first driving component 130 drives the n regularization parts 131 to fall to the second position, and each regularization part 131 retracts to the bottom of the bearing surface of the bearing component 11 through the avoidance hole to avoid the battery cells to be laid subsequently.

[0104] It can be seen that by setting the organizing component 13 below the supporting component 11, the first driving component 130 drives the n organizing parts 131 to rise and fall synchronously, so as to organize each soldering strip of the soldering strip group on the corresponding combination position M and avoid the subsequent battery cells to be laid, thereby achieving the simultaneous organization of each soldering strip on all the combination positions M, and providing an organizing component 13 with a compact structure, reasonable layout and high organizing efficiency.

[0105] As an embodiment, each regularizing portion 131 includes a first regularizing piece 1310 and a second regularizing piece 1311, and each combination position M on the supporting component 11 is provided with a first avoidance hole 110 and a second avoidance hole 111 spaced apart. The first regularizing piece 1310 is arranged corresponding to the first avoidance hole 110, and the second regularizing piece 1311 is arranged corresponding to the second avoidance hole 111. The first avoidance hole 110 provides avoidance for the lifting and lowering of the first regularizing piece 1310, and the second avoidance hole 111 provides avoidance for the lifting and lowering of the second regularizing piece 1311. The first regularizing piece 1310 is configured to regularize the first end of each solder strip of the solder strip group on the corresponding combination position M, and the second regularizing piece 1311 is configured to regularize the second end of each solder strip of the solder strip group on the corresponding combination position M.

[0106] It can be seen that by setting the first regularizing piece 1310 and the second regularizing piece 1311, and opening the first avoidance hole 110 and the second avoidance hole 111 on the supporting component 11, the two ends of each welding strip of the welding strip group on the corresponding combination position M are regularized so that each welding strip is located at a preset position, providing a regularizing part 131 with a simple structure, easy implementation, high regularizing efficiency and good regularizing effect.

[0107] As an embodiment, the first driving component 130 includes a base 1300, a first driving member (not shown in the figure), a first transmission component, a lifting member 1301 and a supporting member 1302. The lifting member 1301 is installed on the base 1300 in a liftable manner, the supporting member 1302 is installed on the lifting member 1301, and n regular portions 131 are arranged on the supporting member 1302 at intervals along a first direction. The first driving member drives the lifting member 1301 to rise and fall through the first transmission component.

[0108] Specifically, the lifting member 1301 is installed on the base 1300 in a liftable manner through a guide sliding pair composed of a linear guide rail and a slider.

[0109] Specifically, the first transmission assembly includes an eccentric shaft 1303, an eccentric wheel 1304 and a driving plate 1305. The first driving member is a motor. The fixed end of the first driving member is mounted on the base 1300. The driving end of the first driving member is connected to the first end of the eccentric shaft 1303. The second end of the eccentric shaft 1303 is eccentrically arranged to the first end of the eccentric shaft 1303. The eccentric wheel 1304 is rotatably mounted on the second end of the eccentric shaft 1303. The driving plate 1305 is mounted on the lifting member 1301. A waist-shaped follower hole 1306 is provided on the driving plate 1305. The eccentric wheel 1304 is located in the follower hole 1306. The long side of the follower hole 1306 extends in the horizontal direction. The outer diameter of the eccentric wheel 1304 is the same as the width of the follower hole 1306. The length of the follower hole 1306 is greater than the outer diameter of the eccentric wheel 1304.

[0110] It can be seen that through the cooperation of the first driving member, the first transmission assembly, the lifting member 1301 and the supporting member 1302, it is possible to drive the n regular parts 131 to rise and fall synchronously, providing a first driving assembly with a simple structure, low cost and stable and reliable operation; at the same time, the first transmission assembly adopts the cooperation of the eccentric wheel 1304 and the driving plate 1305 to implement transmission, with high transmission efficiency and stable and reliable operation.

[0111] See also Figures 4 to 6 As shown, as an embodiment, the top surfaces of the first regularized piece 1310 and the second regularized piece 1311 are both provided with a plurality of first regularized grooves 1312 at intervals along the second direction, each first regularized groove 1312 corresponds to a welding strip 60, and each first regularized groove 1312 of the first regularized piece 1310 corresponds one to one with each first regularized groove 1312 of the second regularized piece 1311; the first regularized groove 1312 includes an opening section 1313 and a regularized section 1314 arranged from top to bottom, the width of the upper end opening of the opening section 1313 is at least 1.5 times the width of the welding strip 60, the lower end opening of the opening section 1313 is connected to the regularized section 1314, and the opening The width of the mouth section 1313 decreases continuously from the upper opening to the lower opening, the width of the regularization section 1314 is at least 0.1 mm larger than the width of the welding strip 60, and the first direction is perpendicular to the second direction; the first driving component 130 drives the n regularization parts 131 to rise to the first position, and the first end of each welding strip 60 falls into the corresponding first regularization groove 1312 on the first regularization piece 1310, and the second end of each welding strip 60 falls into the corresponding first regularization groove 1312 on the second regularization piece 1311, so as to regularize each welding strip 60 through the regularization section 1314 of the first regularization groove 1312 of the first regularization piece 1310 and the second regularization piece 1311.

[0112] It can be seen that by setting a plurality of first regularization grooves 1312 at intervals on the top surfaces of the first regularization piece 1310 and the second regularization piece 1311, and setting the first regularization groove 1312 so that the width of the opening section 1313 is continuously reduced from the upper end opening to the lower end opening, the width of the regularization section 1314 is at least 0.1 mm larger than the width of the welding strip 60, so that when the n regularization parts 131 rise to the first position, the two ends of each welding strip 60 fall into the corresponding first regularization grooves 1312 of the two regularization parts, and the regularization sections 1314 of the first regularization grooves 1312 are used to regularize the two ends of the welding strip 60. At the same time, because the regularization sections 1314 of the first regularization grooves 1312 themselves are used to regularize the two ends of the welding strip 60 in this embodiment, the first driving component 130 only needs to drive the n regularization parts 131 to rise and fall; a regularization component 13 with simple structure, low cost and high regularization efficiency is provided.

[0113] As an implementation mode, when the welding strip 60 adopts a flat welding strip with a width of 0.6 mm, the width of the upper opening of the opening section 1313 is 1-2 mm, and the width of the lower opening of the opening section 1313 and the regular section 1314 is 0.7-0.9 mm. Preferably, the width of the upper opening of the opening section 1313 is 1.5 mm, and the width of the lower opening of the opening section 1313 and the regular section 1314 is 0.8 mm.

[0114] It can be seen that by setting the dimensions of the upper opening, the lower opening and the regularizing section 1314 of the opening section 1313, the regularizing effect of the first regularizing piece 1310 and the second regularizing piece 1311 on the flat welding strip is ensured.

[0115] As an embodiment, when the welding strip 60 adopts a circular welding strip with a width of 0.3 mm, the width of the upper opening of the opening section 1313 is 1-2 mm, and the width of the lower opening of the opening section 1313 and the regular section 1314 is 0.4-0.8 mm. Among them, the width of the upper opening of the opening section 1313 is preferably 1 mm, and the width of the lower opening of the opening section 1313 and the regular section 1314 is preferably 0.5 mm. By setting the size of the upper opening, the lower opening and the regular section 1314 of the opening section 1313, the regularizing effect of the first regularizing piece 1310 and the second regularizing piece 1311 on the circular welding strip is guaranteed.

[0116] The upper opening width and the lower opening width of the opening section 1313 depend on the size of the welding strip, and adaptive adjustments are required during specific operations. The upper opening of the opening section 1313 is generally twice the width of the welding strip, and the lower opening is the same as the width of the welding strip.

[0117] It can be seen that the regularizing effect of the first regularizing piece 1310 and the second regularizing piece 1311 is ensured by setting the dimensions of the upper opening, the lower opening and the regularizing section 1314 of the opening section 1313 .

[0118] See also Figure 4 , Figure 7 and Figure 8 As shown, as an embodiment, the first driving component 130 is also configured to drive n regularization parts 131 to reciprocate along the second direction, the first direction is perpendicular to the second direction, the first driving component 130 also includes a second driving member 1307 and a second transmission component, the support member 1302 can be reciprocated along the second direction and is installed on the lifting member 1301, the second driving member 1307 drives the support member 1302 to reciprocate along the second direction through the second transmission assembly.

[0119] Specifically, the second driving member 1307 adopts a servo motor, and the second transmission assembly includes a pulley transmission assembly 1308 and a ball screw transmission pair 1309. The screw of the ball screw transmission pair 1309 extends along the second direction and is rotatably mounted on the lifting member 1301. The nut of the ball screw transmission pair 1309 is mounted on the screw of the ball screw transmission pair 1309 and is fixedly connected to the support member 1302. The second driving member 1307 drives the screw of the ball screw transmission pair 1309 to rotate clockwise or counterclockwise along its own axis through the pulley transmission assembly 1308, thereby driving the support member 1302 to move back and forth along the second direction.

[0120] It can be seen that, through the cooperation between the second driving member 1307 and the second transmission assembly, the driving support member 1302 is driven to move back and forth along the second direction, thereby providing a first driving assembly 130 that has both lifting and horizontal movement along the second direction.

[0121] As an embodiment, the top surfaces of the first regularized piece 1310 and the second regularized piece 1311 are both provided with a plurality of first regularized grooves 1312 at intervals along the second direction, each first regularized groove 1312 corresponds to a welding strip, and each first regularized groove 1312 of the first regularized piece 1310 corresponds one to one with each first regularized groove 1312 of the second regularized piece 1311; the first regularized groove 1312 includes an opening section 1313 and a regularized section 1314 arranged from top to bottom, the width of the upper end opening of the opening section 1313 is at least 1.5 times the width of the welding strip, and the lower end opening of the opening section 1313 is at least 1.5 times the width of the welding strip. The opening 1313 is connected to the regularization section 1314, the width of the opening section 1313 is continuously reduced from the upper opening to the lower opening, the width of the regularization section 1314 is at least 0.1 mm larger than the width of the welding strip, and the first direction is perpendicular to the second direction; the first driving component 130 drives the n regularization parts 131 to rise to the first position, and the first end of each welding strip falls into the corresponding first regularization groove 1312 on the first regularization piece 1310, and the second end of each welding strip falls into the corresponding first regularization groove 1312 on the second regularization piece 1311, so as to pass through the first regularization piece 1310 and the second regularization piece 1311. The regular section 1314 of the regular groove 1312 is regularized for each welding strip; the top surfaces of the first regularized piece 1310 and the second regularized piece 1311 are also provided with a plurality of first positioning grooves 1316 corresponding to the first regularized grooves 1312 one by one, each first positioning groove 1316 is located on one side of a first regularized groove 1312, each first positioning groove 1316 corresponds to a welding strip, each first positioning groove 1316 of the first regularized piece 1310 corresponds to each first positioning groove 1316 of the second regularized piece 1311 one by one, and the width of the first positioning groove 1316 is equal to the width of the regular section 1314 The same; the first driving component 130 is also configured to drive the regularization part 131 to move along the second direction so that the first positioning groove 1316 is located directly below the corresponding welding strip; the first driving component 130 is also configured to drive the n regularization parts 131 to rise to the third position, so that each welding strip part falls into the corresponding first positioning groove 1316, and the upper surface of the first regularization part 1310 and the second regularization part 1311 is higher than the bearing surface of the bearing component 11 and lower than the upper surface of the welding strip. After the battery cell is laid on the welding strip group, the first driving component 130 drives the n regularization parts 131 to descend to the second position.

[0122] It can be seen that by arranging a plurality of first regularizing grooves 1312 at intervals on the top surfaces of the first regularizing piece 1310 and the second regularizing piece 1311, and setting the first regularizing groove 1312 so that the width of the opening section 1313 continuously decreases from the upper end opening to the lower end opening, the width of the regularizing section 1314 is at least 0.1 mm larger than the width of the welding strip 60, so that when the n regularizing parts 131 rise to the first position, the two ends of each welding strip 60 fall into the corresponding first regularizing grooves 1312 of the two regularizing pieces, and the two ends of the welding strip 60 are regularized by the regularizing section 1314 of the first regularizing groove 1312. At the same time, because the two ends of the welding strip 60 are regularized by the regularizing section 1314 of the first regularizing groove 1312 itself in this embodiment, the first driving component 130 only needs to drive n regularizing parts 131 to rise and fall; a regularizing component 13 with simple structure, low cost and high regularizing efficiency is provided; by setting a second positioning groove on one side of each second regularizing groove, through the cooperation of the first driving component 130 and the regularizing part 131, each welding strip is partially dropped into the corresponding first positioning groove 1316 after being regularized by the first regularizing groove 1312, and the first positioning groove 1316 is limited to avoid displacement of the welding strip when the battery cell is laid, thereby further improving the string welding quality of the battery string.

[0123] See also Figure 4 , Figures 9 to 12 As shown, as an embodiment, the top surfaces of the first regularizing member 1310 and the second regularizing member 1311 are both provided with a plurality of second regularizing grooves 1315 at intervals along the second direction, each second regularizing groove 1315 corresponds to a welding strip 60, each second regularizing groove 1315 of the first regularizing member 1310 corresponds to each second regularizing groove 1315 of the second regularizing member 1311 one by one, and the width of the second regularizing groove 1315 is greater than the diameter of the welding strip 60; the first driving component 130 drives the n regularizing parts 131 Rise to the first position, so that the first end of each welding strip 60 falls into the corresponding second regularization groove 1315 on the first regularization piece 1310, and the second end of each welding strip 60 falls into the corresponding second regularization groove 1315 on the second regularization piece 1311; the first driving component 130 drives the n regularization parts 131 to move back and forth along the second direction, so as to drive the corresponding welding strips 60 to move through the second regularization grooves 1315 of the first regularization piece 1310 and the second regularization piece 1311, so as to regularize each welding strip 60.

[0124] It can be seen that by arranging a plurality of second regularizing grooves 1315 at intervals on the top surfaces of the first regularizing piece 1310 and the second regularizing piece 1311, the width of the second regularizing grooves 1315 is greater than the diameter of the welding strip 60, so that when the n regularizing parts 131 rise to the first position, the two ends of each welding strip 60 fall into the corresponding second regularizing grooves 1315 of the two regularizing parts. Since the width of the second regularizing grooves 1315 in this embodiment is greater than the diameter of the welding strip 60, it is necessary to drive the n regularizing parts 131 to reciprocate along the second direction through the first driving component 130, and the corresponding welding strip 60 is driven to move through the second regularizing grooves 1315 of the first regularizing piece 1310 and the second regularizing piece 1311 to regularize each welding strip 60, thereby further improving the regularization efficiency.

[0125] As an implementation mode, the width of the second regularization groove 1315 is 1-3 mm, and preferably the width of the second regularization groove 1315 is 1.5 mm. By setting the width of the second regularization groove 1315, the regularization effect of the first regularization piece 1310 and the second regularization piece 1311 is ensured.

[0126] As an embodiment, the top surfaces of the first regularized piece 1310 and the second regularized piece 1311 are further provided with a plurality of second positioning grooves 1317 corresponding to the second regularized grooves 1315 one by one, each second positioning groove 1317 is located on one side of a second regularized groove 1315, each second positioning groove 1317 corresponds to a welding strip, each second positioning groove 1317 of the first regularized piece 1310 corresponds to each second positioning groove 1317 of the second regularized piece 1311 one by one, and the width of the second positioning groove 1317 is at least 0.1 mm larger than the diameter of the welding strip; the first driving Component 130 is also configured to drive the regularization part 131 to move along the second direction so that the second positioning groove 1317 is located directly below the corresponding welding strip; the first driving component 130 is also configured to drive the n regularization parts 131 to rise to the third position so that each welding strip part falls into the corresponding second positioning groove 1317, and the upper surface of the first regularization part 1310 and the second regularization part 1311 is higher than the bearing surface of the bearing component 11 and lower than the upper surface of the welding strip. After the battery cell is laid on the welding strip group, the first driving component 130 drives the n regularization parts 131 to descend to the second position.

[0127] It can be seen that by setting the second positioning groove 1317 on one side of each second regularizing groove 1315, through the cooperation of the first driving component 130 and the regularizing part 131, each welding strip can partially fall into the corresponding second positioning groove 1317 after being regularized by the second regularizing groove 1315. The limiting of the second positioning groove 1317 can avoid displacement of the welding strip when the battery cell is laid, thereby further improving the string welding quality of the battery string.

[0128] See also Figure 1 and Figure 3As shown, as an embodiment, the adsorption component 12 includes a plurality of negative pressure adsorption holes opened on the bearing surface of each combination position M of the bearing component 11, and the plurality of negative pressure adsorption holes are connected to the negative pressure channel, and the negative pressure channel is connected to the vacuum device;

[0129] The plurality of negative pressure adsorption holes include a plurality of intermediate adsorption holes 120, a plurality of first end adsorption holes 121 and a plurality of second end adsorption holes 122. The plurality of intermediate adsorption holes 120 are located between the first avoidance hole 110 and the second avoidance hole 111 of each combination position M, the plurality of first end adsorption holes 121 are located on the outside of the first avoidance hole 110 of each combination position M, and the plurality of second end adsorption holes 122 are located on the outside of the second avoidance hole 111 of each combination position M.

[0130] It can be seen that, through the cooperation of a number of negative pressure adsorption holes, a negative pressure channel and a vacuum device, an adsorption component 12 using negative pressure adsorption is provided; by arranging a number of intermediate adsorption holes 120 between the first avoidance hole 110 and the second avoidance hole 111 of each combination position M, arranging a number of first end adsorption holes 121 on the outside of the first avoidance hole 110 of each combination position M, and arranging a number of second end adsorption holes 122 on the outside of the second avoidance hole 111 of each combination position M, the coverage area of ​​the negative pressure adsorption holes on the corresponding combination position M is increased, thereby improving the stability and reliability of the adsorption of the adsorption component 12.

[0131] As an embodiment, the carrier mechanism 10 further includes a heating component, which is located below the carrier component 11 and is configured to heat the carrier component 11 and the battery cell group and welding ribbon group carried by it.

[0132] It can be seen that by providing a heating component, the automatic heating function of the carrying component 11 and the battery cell group and welding ribbon group carried by it is realized.

[0133] A bearing mechanism provided in an embodiment of the present application has the following advantages:

[0134] 1) Each welding ribbon of the welding ribbon group adsorbed by the adsorption component at each assembly position can be regulated before the battery cells are laid out to correct the offset welding ribbon, which greatly reduces the defective rate of battery string welding and improves the quality of battery string welding;

[0135] 2) The regularization component can regularize each welding strip on all combination positions at the same time, which not only has high regularization efficiency, but also has a reasonable overall structural layout, compact structure and small space occupation;

[0136] 3) The first aligning tank has an automatic aligning function, and the overall structure of the aligning component is simple, easy to implement, and low in cost;

[0137] 4) The first driving component drives n regularization parts to rise and then drives n regularization parts to reciprocate along the second direction, so as to regularize the welding strips carried by each regularization part, with high regularization efficiency and good regularization effect;

[0138] 5) It has the function of automatically heating the supporting assembly and the battery cell group and welding ribbon group it supports.

[0139] The present application also provides two embodiments of the string welding machine, which are described in detail below:

[0140] Embodiment 1

[0141] See also Figures 13 to 17 As shown, the embodiment of the present application provides a string welding machine, which includes a string assembly mechanism (not shown in the figure), a welding mechanism (not shown in the figure), a carrying mechanism 10 and a first conveying mechanism 20, wherein: the string welding machine is arranged along a first direction ( Fig. 9 The first conveying mechanism 20 is connected to the carrying mechanism 10, and the first conveying mechanism 20 is configured to drive the carrying mechanism 10 to move alternately to the stringing station 30 and the welding station 31. The stringing mechanism is arranged at the stringing station 30, and the welding mechanism is arranged at the welding station 31; the first conveying mechanism 20 drives the carrying mechanism 10 to move to the stringing station 30, and the stringing mechanism is configured to lay the welding ribbon group on each combination position M of the carrying component 11, and organize the components 13 is configured at the stringing station 30 to regularize each welding ribbon of the welding ribbon group adsorbed by the adsorption component 12, and the stringing mechanism is also configured to lay the battery cell group on the regularized welding ribbon group to string the battery cell group and the welding ribbon group; the first conveying mechanism 20 drives the carrying mechanism 10 to move to the welding station 31 to move the battery cell group and the welding ribbon group after stringing on the carrying component 11 to the welding station 31, and the welding mechanism is configured to perform string welding on the welding group and battery cell group after stringing on the carrying mechanism 10 located at the welding station 31.

[0142] It can be seen that, through the cooperation of the string assembly mechanism, the welding mechanism, the bearing mechanism 10 and the first conveying mechanism 20, the automatic string assembly and string welding of the battery cell group and the welding ribbon group are realized, and the working efficiency is high; the regularization component 13 can regularize each welding ribbon of the welding ribbon group adsorbed by the adsorption component 12 at the string assembly station 30, so as to correct the offset welding ribbon, so that each welding ribbon is located at a preset position, which greatly reduces the exposure of the battery cell grid lines of the battery string after string assembly, thereby greatly reducing the defective rate of the battery string string welding and improving the string welding quality of the battery string; at the same time, the first conveying mechanism 20 adopts a method of directly driving the bearing mechanism 10 to alternately move to the string assembly station 30 and the welding station 31, which simplifies the overall structure and facilitates the maintenance and repair of the equipment.

[0143] As an embodiment, the first conveying mechanism 20 includes a third driving member 21, a first pulley 22, a second pulley 23 and a transmission belt 24. The first pulley 22 and the second pulley 23 are arranged at intervals along the first direction. The transmission belt 24 is installed on the first pulley 22 and the second pulley 23. The transmission belt 24 is fixedly connected to the supporting mechanism 10. The driving end of the third driving member 21 is connected to the first pulley 22 or the second pulley 23. The third driving member 21 is configured to drive the first pulley 22 or the second pulley 23 to rotate, so as to drive the transmission belt 24 to rotate, and then drive the supporting mechanism 10 to reciprocate in the first direction.

[0144] Specifically, the third driving member 21 is a motor, the first pulley 22 and the second pulley 23 are both synchronous belts, and the transmission belt 24 is a synchronous belt.

[0145] It can be seen that through the cooperation of the third driving member 21, the first pulley 22, the second pulley 23 and the transmission belt 24, a first conveying mechanism 20 that uses pulleys and belts to drive the bearing mechanism to move back and forth is provided. The structure is simple, easy to implement, low in cost, and convenient for subsequent repair and maintenance.

[0146] As an embodiment, the stringer also includes a battery string transport mechanism (not shown in the figure). The stringer is also provided with a material unloading station 32 located after the welding station 31 along the first direction. The first conveying mechanism 20 is also configured to drive the supporting mechanism 10 to move to the material unloading station 32 to move the battery cell group and the welding ribbon group welded at the welding station 31 to the material unloading station 32. The battery string transport mechanism is configured to transport the battery cell group and the welding ribbon group at the material unloading station 32 to the next process.

[0147] It can be seen that by providing a battery string transport mechanism and providing a material unloading station 32 after the welding station 31, automatic unloading of the battery strings after string welding is achieved, further improving work efficiency.

[0148] Embodiment 2

[0149] See also Figures 1 to 12As shown, the embodiment of the present application further proposes a string welding machine, which includes a string assembly mechanism (not shown in the figure), a welding mechanism (not shown in the figure), a first auxiliary carrying mechanism 40, a carrying mechanism 10 and a second conveying mechanism 50, wherein: the string welding machine is sequentially provided with a string assembly station 30 and a welding station 31 along a first direction, and the second conveying mechanism 50 is configured to convey the battery cell group and the welding ribbon group to be string welded from the string assembly station 30 to the welding station 31; the second conveying mechanism 50 includes a fourth driving member 51, The conveyor frame 52 and the conveyor belt 53, the conveyor belt 53 is rotatably mounted on the conveyor frame 52, and the fourth driving member 51 is configured to drive the conveyor belt 53 to rotate; the bearing mechanism 10 is located below the conveyor belt 53 at the string assembly station 30, and the bearing assembly 11 is also configured to carry the conveyor belt 53, the battery cell group and the welding belt group are laid on the conveyor belt 53, and the conveyor belt 53 is provided with a third avoidance hole 530 for avoiding the regularization part 13 corresponding to each assembly position M, and the conveyor belt 530 is provided with a third avoidance hole 530 for avoiding the regularization part 13 corresponding to each assembly position M. The closing position M is also provided with a fourth avoidance hole 531, and the adsorption component 12 adsorbs the battery cell group and the welding tape group through the fourth avoidance hole 531; the string assembly mechanism is arranged at the string assembly station 30, and the string assembly mechanism is configured to lay the welding tape group on the conveyor belt 53 located at the string assembly station 30, and the regularization component 13 is arranged at the string assembly station 30 to regularize each welding tape of the welding tape group adsorbed by the adsorption component 12, and the string assembly mechanism is also configured to lay the battery cell group on the welding tape group after the welding tape group is regularized. To string the battery cell groups and the welding ribbon groups; the first auxiliary carrying mechanism 40 is arranged at the welding station 31, and the first auxiliary carrying mechanism 40 is configured to carry the conveyor belt 53 passing through the welding station 31, and the first auxiliary carrying mechanism 40 is also configured to fix the welding ribbon group and the battery cell group on the conveyor belt 53 by negative pressure adsorption; the welding mechanism is arranged at the welding station 31, and the welding mechanism is configured to perform string welding on the welding group and the battery cell group after stringing on the conveyor belt 53 located at the welding station 31.

[0150] It can be seen that, through the cooperation of the string assembly mechanism, the welding mechanism, the bearing mechanism 10 and the second conveying mechanism 50, the automatic string assembly and string welding of the battery cell group and the welding tape group are realized, and the work efficiency is high; at the same time, the regularization component 13 can regularize each welding tape of the welding tape group adsorbed by the adsorption component 12 at the string assembly station 30, so as to correct the offset welding tape, so that each welding tape is located at a preset position, which greatly reduces the exposure of the battery cell grid line of the battery string after string assembly, thereby greatly reducing the defective rate of the string welding of the battery string, and improving the string welding quality of the battery string; the second conveying mechanism 50 adopts the method of conveying the battery cell group and the welding tape group by the conveyor belt. During the conveying process, the bearing mechanism 10 is fixed, which reduces the load of the second conveying mechanism 50, saves energy consumption, and improves the conveying accuracy; the first auxiliary bearing mechanism 40 realizes the bearing of the conveyor belt 53 passing through the welding station 31, and the first auxiliary bearing mechanism 40 fixes the welding tape group and the battery cell group on the conveyor belt 53 by negative pressure adsorption, thereby ensuring the string welding quality.

[0151] As an embodiment, the string welding machine also includes a battery string transport mechanism (not shown in the figure) and a second auxiliary carrying mechanism 41, wherein: the string welding machine is also provided with a material unloading station 32 located after the welding station 31 along the first direction, and the circulation trajectory of the conveyor belt 53 passes through the string assembly station 30, the welding station 31 and the material unloading station 32 in sequence; the second auxiliary carrying mechanism 41 is configured to carry the conveyor belt 53 passing through the material unloading station 32, and the second auxiliary carrying mechanism 41 is also configured to fix the welded battery cell group and welding ribbon group sent by the conveyor belt 53 from the welding station 31 to the material unloading station 32 through negative pressure adsorption; the battery string transport mechanism is configured to transport the welded battery cell group and welding ribbon group located at the material unloading station 32 to the next process.

[0152] It can be seen that by setting up a battery string transport mechanism and setting up a blanking station 32 after the welding station 31, automatic unloading of the battery strings after string welding is realized, thereby improving work efficiency; the second auxiliary carrying mechanism 41 is used to carry the conveyor belt 53 passing through the blanking station 32 and to fix the welded battery cell group and welding ribbon group at the blanking station 32 by negative pressure adsorption, so as to ensure that the positions of the welded battery cell group and welding ribbon group at the blanking station 32 are fixed, so as to facilitate the battery string transport mechanism to transport the welded battery cell group and welding ribbon group.

[0153] The above embodiments are only to illustrate the basic principles and characteristics of the present application. The present application is not limited by the above examples. Without departing from the spirit and scope of the present application, the present application may be subject to various changes and modifications, which are within the scope of the present application to be protected. The scope of protection claimed in the present application is defined by the attached claims and their equivalents.

Claims

1. A bearing mechanism, characterized in that: The bearing mechanism includes a bearing component, an adsorption component and a regularization component, wherein: The carrying assembly is configured to carry at least a battery cell group and a welding ribbon group, and n combination positions are formed on the carrying assembly at intervals along a first direction, each combination position is used to lay a battery cell and a corresponding welding ribbon group located below the battery cell, and n is a positive integer ≥ 2; The adsorption component is arranged on the carrying component, and the adsorption component is configured to adsorb and fix the welding ribbon group on each combination position on the combination position before the battery cell is laid, and the adsorption component is further configured to adsorb and fix the battery cell and welding ribbon group on each combination position on the combination position after the battery cell is laid; The arranging component is configured to arrange each soldering ribbon of the soldering ribbon group adsorbed by the adsorption component at each combination position before the battery cells are laid out, so that each soldering ribbon is located at a preset position.

2. The supporting mechanism according to claim 1, characterized in that: The tidying component is arranged below the bearing component, and the tidying component comprises a first driving component and n tidying parts, wherein: Each of the regularization parts corresponds to one of the assembly positions, and the regularization part is configured to regularize each welding ribbon of the welding ribbon group on the corresponding assembly position before the battery cell is laid, and the carrying component is provided with an avoidance hole corresponding to each of the regularization parts, and the driving end of the first driving component is connected to the n regularization parts, and the first driving component is configured to at least drive the n regularization parts to synchronously rise to the first position or synchronously fall to the second position; The first driving component drives the n regularization parts to rise to the first position, and each regularization part extends out of the bearing surface of the bearing component through the avoidance hole to regularize each welding ribbon of the welding ribbon group at the corresponding combination position; The first driving assembly drives the n regularization parts to descend to the second position, and each regularization part retracts to below the bearing surface of the bearing assembly through the avoidance hole to avoid the battery cells to be laid subsequently.

3. The supporting mechanism according to claim 2, characterized in that: Each of the regularizing parts includes a first regularizing piece and a second regularizing piece, and each combination position on the bearing component is provided with a first avoidance hole and a second avoidance hole at intervals. The first regularizing piece is arranged corresponding to the first avoidance hole, and the second regularizing piece is arranged corresponding to the second avoidance hole. The first avoidance hole provides avoidance for the lifting and lowering of the first regularizing piece, and the second avoidance hole provides avoidance for the lifting and lowering of the second regularizing piece. The first regularizing piece is configured to regularize the first end of each soldering strip of the soldering strip group on the corresponding combination position, and the second regularizing piece is configured to regularize the second end of each soldering strip of the soldering strip group on the corresponding combination position.

4. The supporting mechanism according to claim 3, characterized in that: The first driving component includes a base, a first driving member, a first transmission component, a lifting member and a supporting member. The lifting member is installed on the base in a liftable manner. The supporting member is installed on the lifting member. The n regular parts are arranged on the supporting member at intervals along the first direction. The first driving member drives the lifting member to move up and down through the first transmission component.

5. The supporting mechanism according to claim 4, characterized in that: The top surfaces of the first regularized piece and the second regularized piece are both provided with a plurality of first regularized grooves spaced apart along the second direction, each of the first regularized grooves corresponds to a welding strip, and each of the first regularized grooves of the first regularized piece corresponds one to one with each of the first regularized grooves of the second regularized piece; The first regularization groove includes an opening section and a regularization section arranged from top to bottom, the width of the upper opening of the opening section is at least 1.5 times the width of the welding strip, the lower opening of the opening section is connected to the regularization section, the width of the opening section is continuously reduced from the upper opening to the lower opening, the width of the regularization section is equal to the diameter of the welding strip, and the first direction is perpendicular to the second direction; The first driving component drives the n regularizing parts to rise to the first position, the first end of each welding strip falls into the corresponding first regularizing groove on the first regularizing piece, and the second end of each welding strip falls into the corresponding first regularizing groove on the second regularizing piece, so as to regularize each welding strip through the regularizing sections of the first regularizing grooves of the first regularizing piece and the second regularizing piece.

6. The supporting mechanism according to claim 5, characterized in that: When the welding strip is a flat welding strip with a width of 0.6 mm, the width of the upper opening of the opening section is 1-2 mm, and the width of the lower opening of the opening section and the regular section is 0.7-0.9 mm.

7. The supporting mechanism according to claim 6, characterized in that: The width of the upper opening of the opening section is 1.5 mm, and the width of the lower opening of the opening section and the regular section is 0.8 mm.

8. The supporting mechanism according to claim 5, characterized in that: When the welding strip is a round welding strip with a width of 0.3 mm, the width of the upper opening of the opening section is 1-2 mm, and the width of the lower opening of the opening section and the regular section is 0.4-0.8 mm.

9. The supporting mechanism according to claim 8, characterized in that: The width of the upper opening of the opening section is 1 mm, and the width of the lower opening of the opening section and the regular section is 0.5 mm.

10. The supporting mechanism according to claim 4, characterized in that: The first driving component is also configured to drive the n regularization parts to reciprocate along a second direction, the first direction is perpendicular to the second direction, the first driving component also includes a second driving member and a second transmission member, the support member can be reciprocated along the second direction and is installed on the lifting member, the second driving member drives the support member to reciprocate along the second direction through the second transmission member.

11. The supporting mechanism according to claim 10, characterized in that: The top surfaces of the first regularized piece and the second regularized piece are both provided with a plurality of first regularized grooves spaced apart along the second direction, each of the first regularized grooves corresponds to a welding strip, and each of the first regularized grooves of the first regularized piece corresponds one to one with each of the first regularized grooves of the second regularized piece; The first regularization groove includes an opening section and a regularization section arranged from top to bottom, the width of the upper opening of the opening section is at least 1.5 times the width of the welding strip, the lower opening of the opening section is connected to the regularization section, the width of the opening section is continuously reduced from the upper opening to the lower opening, the width of the regularization section is at least 0.1 mm larger than the width of the welding strip, and the first direction is perpendicular to the second direction; The first driving component drives the n regularization parts to rise to the first position, and the first end of each welding strip falls into the corresponding first regularization groove on the first regularization piece, and the second end of each welding strip falls into the corresponding first regularization groove on the second regularization piece, so as to regularize each welding strip through the regularization sections of the first regularization grooves of the first regularization piece and the second regularization piece; The top surfaces of the first regularized piece and the second regularized piece are further provided with a plurality of first positioning grooves corresponding to the first regularized grooves one by one, each of the first positioning grooves is located on one side of one of the first regularized grooves, each of the first positioning grooves corresponds to a welding strip, each of the first positioning grooves of the first regularized piece corresponds to each of the first positioning grooves of the second regularized piece one by one, and the width of the first positioning groove is the same as the width of the regularized section; The first driving component is also configured to drive the regularizing part to move along the second direction so that the first positioning groove is located directly below the corresponding welding strip; the first driving component is also configured to drive the n regularizing parts to rise to a third position so that each welding strip part falls into the corresponding first positioning groove, and the upper surface of the first regularizing part and the second regularizing part is higher than the bearing surface of the bearing component and lower than the upper surface of the welding strip. After the battery cell is laid on the welding strip group, the first driving component drives the n regularizing parts to descend to the second position.

12. The supporting mechanism according to claim 10, characterized in that: The top surfaces of the first regularized piece and the second regularized piece are both provided with a plurality of second regularized grooves spaced apart along the second direction, each of the second regularized grooves corresponds to a welding strip, each of the second regularized grooves of the first regularized piece corresponds one to one with each of the second regularized grooves of the second regularized piece, and the width of the second regularized groove is greater than the diameter of the welding strip; The first driving component drives the n regularizing parts to rise to the first position, so that the first end of each welding strip falls into the corresponding second regularizing groove on the first regularizing piece, and the second end of each welding strip falls into the corresponding second regularizing groove on the second regularizing piece; the first driving component drives the n regularizing parts to move back and forth along the second direction, so as to drive the corresponding welding strips to move through the second regularizing grooves of the first regularizing piece and the second regularizing piece, so as to regularize each welding strip and make the welding strips in a preset position.

13. The supporting mechanism according to claim 12, characterized in that: The top surfaces of the first regularized piece and the second regularized piece are further provided with a plurality of second positioning grooves corresponding to the second regularized grooves one by one, each of the second positioning grooves is located on one side of a second regularized groove, each of the second positioning grooves corresponds to a welding strip, each of the second positioning grooves of the first regularized piece corresponds to each of the second positioning grooves of the second regularized piece one by one, and the width of the second positioning groove is at least 0.1 mm larger than the diameter of the welding strip; The first driving component is also configured to drive the regularizing part to move along the second direction so that the second positioning groove is located directly below the corresponding welding strip; the first driving component is also configured to drive the n regularizing parts to rise to a third position so that each welding strip part falls into the corresponding second positioning groove, and the upper surface of the first regularizing part and the second regularizing part is higher than the bearing surface of the bearing component and lower than the upper surface of the welding strip. After the battery cell is laid on the welding strip group, the first driving component drives the n regularizing parts to descend to the second position.

14. The supporting mechanism according to claim 12, characterized in that: The width of the second regular groove is 1-3 mm.

15. The supporting mechanism according to claim 14, characterized in that: The width of the second regular groove is 1.5 mm.

16. The supporting mechanism according to claim 3, characterized in that: The adsorption component includes a plurality of negative pressure adsorption holes opened on the bearing surface of each combination position of the bearing component, the plurality of negative pressure adsorption holes are connected to the negative pressure channel, and the negative pressure channel is connected to the vacuum device; The plurality of negative pressure adsorption holes include a plurality of middle adsorption holes, a plurality of first end adsorption holes and a plurality of second end adsorption holes. The plurality of middle adsorption holes are located between the first avoidance hole and the second avoidance hole of each combination position, the plurality of the first end adsorption holes are located outside the first avoidance hole of each combination position, and the plurality of the second end adsorption holes are located outside the second avoidance hole of each combination position.

17. The supporting mechanism according to claim 1, characterized in that: The carrying mechanism further includes a heating component, which is located below the carrying component and is configured to heat the carrying component and the battery cell group and welding ribbon group carried by the carrying component.

18. A string welding machine, characterized in that: The string welding machine comprises a string assembly mechanism, a welding mechanism, a bearing mechanism as claimed in any one of claims 1 to 17, and a first conveying mechanism, wherein: The string welding machine is sequentially provided with a string assembly station and a welding station along a first direction, the driving end of the first conveying mechanism is connected to the bearing mechanism, the first conveying mechanism is configured to drive the bearing mechanism to move alternately to the string assembly station and the welding station, the string assembly mechanism is arranged at the string assembly station, and the welding mechanism is arranged at the welding station; The first conveying mechanism drives the carrying mechanism to move to the string assembly station, the string assembly mechanism is configured to lay the welding tape group on each assembly position of the carrying component, the regularization component is configured at the string assembly station to regularize each welding tape of the welding tape group adsorbed by the adsorption component, and the string assembly mechanism is further configured to lay the battery cell group on the regularized welding tape group to perform string assembly on the battery cell group and the welding tape group; The first conveying mechanism drives the carrying mechanism to move to the welding station to move the battery cell group and welding ribbon group after stringing on the carrying assembly to the welding station, and the welding mechanism is configured to perform string welding on the welding group and battery cell group after stringing on the carrying mechanism located at the welding station.

19. The stringer according to claim 18, characterized in that: The first conveying mechanism includes a third driving member, a first pulley, a second pulley and a transmission belt. The first pulley and the second pulley are arranged at intervals along the first direction. The transmission belt is installed on the first pulley and the second pulley. The transmission belt is fixedly connected to the supporting mechanism. The driving end of the third driving member is connected to the first pulley or the second pulley. The third driving member is configured to drive the first pulley or the second pulley to rotate so as to drive the transmission belt to rotate.

20. The stringer according to claim 19, characterized in that: The string welding machine also includes a battery string transport mechanism, and the string welding machine is also provided with a material unloading station located after the welding station along the first direction. The first conveying mechanism is also configured to drive the carrying mechanism to move to the material unloading station to move the battery cell group and the welding ribbon group welded at the welding station to the material unloading station, and the battery string transport mechanism is configured to transport the battery cell group and the welding ribbon group at the material unloading station to the next process.

21. A string welding machine, characterized in that: The string welding machine comprises a string assembly mechanism, a welding mechanism, a first auxiliary bearing mechanism, a bearing mechanism according to any one of claims 1 to 17, and a second conveying mechanism, wherein: The stringer is provided with a string assembly station and a welding station in sequence along the first direction, and the second conveying mechanism is configured to convey the battery cell group and the welding ribbon group to be string-welded from the string assembly station to the welding station; The second conveying mechanism comprises a fourth driving member, a conveying frame and a conveying belt, wherein the conveying belt is rotatably mounted on the conveying frame, and the fourth driving member is configured to drive the conveying belt to rotate; The bearing mechanism is located below the conveyor belt at the string assembly station, the bearing assembly is further configured to bear the conveyor belt, the battery cell group and the welding belt group are laid on the conveyor belt, a third avoidance hole for avoiding the regularization part is provided on the conveyor belt corresponding to each assembly position, and a fourth avoidance hole is provided on the conveyor belt corresponding to each assembly position, and the adsorption assembly adsorbs the battery cell group and the welding belt group through the fourth avoidance hole; The string assembly mechanism is arranged at the string assembly station, and the string assembly mechanism is configured to lay the welding tape group on the conveyor belt located at the string assembly station, and the regularization component is configured at the string assembly station to regularize each welding tape of the welding tape group adsorbed by the adsorption component, and the string assembly mechanism is further configured to lay the battery cell group on the welding tape group after regularizing the welding tape group, so as to string the battery cell group and the welding tape group; The first auxiliary carrying mechanism is disposed at the welding station, and is configured to carry the conveyor belt passing through the welding station, and the first auxiliary carrying mechanism is further configured to fix the welding belt group and the battery cell group on the conveyor belt by negative pressure adsorption; The welding mechanism is disposed at the welding station, and is configured to perform string welding on the welding group and the battery cell group after stringing on the conveyor belt located at the welding station.

22. The stringer according to claim 21, characterized in that: The stringer also includes a battery string transport mechanism and a second auxiliary carrying mechanism, wherein: The string welding machine is also provided with a material unloading station located after the welding station along the first direction, and the circulation track of the conveyor belt passes through the string assembly station, the welding station and the material unloading station in sequence; The second auxiliary carrying mechanism is configured to carry the conveyor belt passing through the unloading station, and the second auxiliary carrying mechanism is further configured to fix the welded battery cell group and welding ribbon group sent by the conveyor belt from the welding station to the unloading station through negative pressure adsorption; The battery string transport mechanism is configured to transport the battery cell group and welding ribbon group after welding at the unloading station to the next process.

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