Battery string conveying device and battery string welding machine

Abstract

The utility model discloses a battery string conveying device and a battery string welding machine, and belongs to the field of battery string manufacturing. The battery string conveying device comprises two bearing mechanisms arranged side by side, and each bearing mechanism comprises a first guide part, a second guide part, a third guide part, a fourth guide part and a fifth guide part, and the first guide parts extend in the first direction and sequentially pass through a feeding station, a welding station and a discharging station; the supporting plate is arranged on the first guide part in a sliding manner, and the supporting plate is used for bearing and fixing a welding strip group extending in the first direction and a battery piece group laid on the welding strip group; the first driving mechanism drives the supporting plate to reciprocate on the first guiding component in the first direction. The battery string conveying device is simple in structure, high in durability and convenient to maintain, the two supporting plates move in a reciprocating mode in the first direction on the first guiding parts of the two supporting plates, and therefore the two supporting plates flow in all stations in turn, and the working efficiency is improved.

Description

Technical Field

[0001] The present application belongs to the field of solar cell production, especially the field of cell string manufacturing. In particular, the present application relates to a cell string conveying device and a cell string welding machine. Background Art

[0002] The battery string is formed by stacking the welding ribbon and the battery cells in a predetermined order, and welding the welding ribbon to the main grid line of the battery cell. A common welding process for battery cell string welding is to use a conveyor belt to receive the battery cell group and welding ribbon group at the loading station, and move the battery cell group and welding ribbon group to be welded to the welding station, and then move the welded battery string to the unloading station.

[0003] This conveying method requires that the length of the conveyor belt can span the loading station, welding station and unloading station, so the conveyor belt is relatively long. The conveyor belt is generally tensioned and driven by rollers. Therefore, it is also necessary to configure a deviation correction component and a tensioning component for the conveyor belt to avoid the conveyor belt from tilting or loosening after long-term work, affecting normal production. The conveyor belt needs to be replaced after long-term work, which causes troubles in later maintenance. Utility Model Content

[0004] The example of the present application provides a battery string conveying device and a battery string welding machine, which can improve the efficiency of conveying operations and have the characteristics of simple structure, strong durability and easy maintenance.

[0005] The solution of this application example is implemented through the following contents.

[0006] In the first aspect, the example of the present application provides a battery string conveying device, which includes two parallel bearing mechanisms, and the bearing mechanisms include: a first guide component, extending along a first direction and passing through a loading station, a welding station, and a unloading station in sequence; a pallet, slidably arranged on the first guide component, and used to carry and fix a welding ribbon group extending along the first direction and a battery cell group laid on the welding ribbon group; and a first driving mechanism, driving the pallet to reciprocate along the first direction on the first guide component. By driving the pallet to reciprocate on the first guide component extending along the first direction by the first driving mechanism, the pallet can be circulated in each station, and the conveying device has a simple structure, strong durability, and convenient maintenance.

[0007] And for the two supporting mechanisms arranged in parallel, the two pallets reciprocate along the first direction on their respective first guide components, so as to circulate in each station in turn, shortening the material transportation time at the loading station, welding station and unloading station, and improving the processing efficiency.

[0008] According to some examples of the first aspect of the present application, the supporting mechanism also includes: a first slide seat, which is slidably disposed on the first guide component and supports the pallet, and the first slide seat is driven by the first driving mechanism to move along the first direction on the first guide component.

[0009] A sliding fit relationship with the first guide component is established by a separately configured first slide seat to support the support plate, thereby facilitating independent maintenance of each component.

[0010] According to some examples of the first aspect of the present application, a second guide component extending along a second direction is provided on the first slide, and the second direction is perpendicular to the first direction in a horizontal plane. The supporting mechanism also includes a second slide and a second driving mechanism. The second slide is slidably arranged on the second guide component, and the second driving mechanism drives the second slide to move along the second direction on the second guide component.

[0011] The second driving mechanism is used to drive the second slide seat to slide on the second guide component, so as to adjust the position of the support plate perpendicular to the first direction.

[0012] According to some examples of the first aspect of the present application, the second driving mechanism includes: a motor having an output shaft equipped with a ratchet, and a rack cooperating with the ratchet, wherein the motor is mounted on the second slide, the rack is arranged on the first slide, and extends along the second direction.

[0013] The cooperation between the ratchet and the rack enables the second sliding seat to slide in a direction perpendicular to the first direction.

[0014] According to some examples of the first aspect of the present application, the supporting mechanism also includes an adsorption component, which includes a vacuum generator and adsorption holes provided on the pallet, and the adsorption holes are connected to the vacuum generator to adsorb the welding ribbon group and the battery cell group located on the pallet.

[0015] The vacuum generator generates adsorption force through the adsorption holes so that the welding ribbon group and the battery cell group are adsorbed and positioned on the pallet.

[0016] According to some examples of the first aspect of the present application, the supporting mechanism further includes a heating assembly installed under the pallet, and the heating assembly is used to heat the welding ribbon group and the battery cell group located on the pallet.

[0017] The heating component heats the battery cell group and the welding ribbon group on the support plate to facilitate welding.

[0018] According to some examples of the first aspect of the present application, the carrying mechanism further includes a tidying component, a avoidance opening is provided on the support plate, the tidying component can be driven to extend out of the avoidance opening and adjust the position of the welding ribbon group perpendicular to the first direction, and the tidying component includes:

[0019] The support is provided with a lifting drive mechanism and a position adjustment drive mechanism;

[0020] The bottom plate is arranged on the support and can be adjusted in height by the lifting drive mechanism, and can be adjusted in position perpendicular to the first direction by the position adjustment drive mechanism;

[0021] A plurality of support plates are arranged on the bottom plate at intervals along the first direction, and a row of regular pieces is formed on each support plate, and the number of the regular pieces corresponds to the number of welding strips in the welding strip group.

[0022] In the above implementation, a regularization component is arranged on the pallet of the carrying mechanism, and the regularization component arranged on the pallet can adjust the position of the solder ribbon group, thereby eliminating the position error caused by the solder ribbon conveying mechanism when placing the solder ribbon, so as to ensure the welding quality of the battery string.

[0023] According to some examples of the first aspect of the present application, the aligning piece is provided with a groove, and the groove is used to accommodate the welding strip when the aligning piece extends out of the avoidance opening.

[0024] The grooves on the aligning piece accommodate the soldering strips. The soldering strips can be moved by driving the aligning piece to adjust the position of the soldering strips, thereby eliminating the position error caused by the soldering strip conveying mechanism when placing the soldering strips.

[0025] According to some examples of the first aspect of the present application, the positioning drive mechanism includes:

[0026] A mounting portion, arranged on the bottom plate;

[0027] The ball screw comprises a ball nut and a screw rod matched with the ball nut. The ball nut is installed on a support. One end of the screw rod is connected with a mounting portion by threaded matching, and the other end is equipped with a driven wheel.

[0028] The driving wheel is arranged on the support and drives the driven wheel through a belt.

[0029] The driving wheel drives the driven wheel through the belt, which in turn drives the ball screw to rotate. The rotation of the ball screw can drive the regular piece to move along a direction perpendicular to the first direction. After the welding strip is placed on the adsorption tray, the position can be adjusted along with the movement of the regular piece.

[0030] According to some examples of the first aspect of the present application, the lifting drive mechanism includes:

[0031] An annular member is installed on one side of the support, the annular member defines an inner peripheral wall, and the inner peripheral wall has a first inner diameter along the horizontal direction and a second inner diameter along the vertical direction, and the first inner diameter is greater than the second inner diameter;

[0032] The cam abuts against the upper portion of the inner peripheral wall, and the cam can be driven to rotate eccentrically.

[0033] The eccentric rotation of the cam causes the annular part to shift in the vertical direction, thereby causing the regular part to move up and down. When adjusting the position of the welding strip, the cam rotates to lift the annular part in the vertical direction, and the regular part extends out from the avoidance opening; after the welding strip position is adjusted, the cam rotates to lower the annular part in the vertical direction, and the regular part drops below the pallet through the avoidance opening to avoid affecting the laying of the battery cells.

[0034] In a second aspect, an example of the present application provides a battery stringer, comprising:

[0035] According to the first aspect of the present application, a battery string conveying device is provided;

[0036] The solder strip transport mechanism is arranged on one side adjacent to the loading station and is used to transport the solder strip group to the pallet at the loading station;

[0037] A cell transport mechanism is provided adjacent to the other side of the loading station, and is used to transport the cell group to the pallet at the loading station and stack it on the welding ribbon group;

[0038] The welding mechanism is arranged adjacent to the welding station, and when the welding ribbon group and the battery cell group are transported to the welding station by the pallet, the welding mechanism presses the battery cell group and the welding ribbon group and heats them, so that the welding ribbon group is hot-melted and fixed on the surface of the battery cell group to form a battery string;

[0039] The battery string transport mechanism is arranged adjacent to the unloading station, and when the battery string is transported to the unloading station by the pallet, the battery string transport mechanism picks up the battery string on the pallet and sends it to the next process.

[0040] The battery string welding machine of the present application includes two supporting mechanisms arranged in parallel. The two support plates reciprocate along the first direction on their respective first guide components, so as to circulate in various workstations in turn, shortening the material transportation time at the loading station, welding station and unloading station, and improving the processing efficiency.

[0041] In particular, according to some examples of the second aspect of the present application, the two pallets are located at the same position at the loading station.

[0042] When the two pallets move back and forth, they have the same loading station, which reduces the burden on the cell transport mechanism and the solder strip transport mechanism and can avoid affecting the movement accuracy of the cell transport mechanism and the solder strip transport mechanism. In this way, the movement amount of the solder strip group transport mechanism and the cell group transport mechanism is reduced and simplified.

[0043] In particular, according to some examples of the second aspect of the present application, the positions of the two support plates at the welding stations are independent of each other.

[0044] When the two pallets move back and forth, their respective welding station positions are independent of each other, which can avoid interference during welding operations.

[0045] In particular, according to some examples of the second aspect of the present application, the positions of the two pallets at the blanking station are the same. According to other examples of the second aspect of the present application, the positions of the two pallets at the blanking station are independent of each other.

[0046] When the two pallets move back and forth, their respective unloading stations are located at the same position, thereby reducing and simplifying the battery string transport mechanism and its movement amount.

[0047] In particular, according to some examples of the second aspect of the present application, the two pallets are at the same position at the loading station, located between the two first guide components, and deviated from one of the first guide components.

[0048] According to some examples of the second aspect of the present application, the welding mechanism includes:

[0049] A guide rail extending above the welding station, and the extending direction is perpendicular to the first direction;

[0050] Welded base, slidably mounted on guide rails;

[0051] The light box sliding mechanism is used to drive the welding base to slide back and forth along the guide rail and slide alternately to the top of the two bearing mechanisms located at the welding station;

[0052] A light box lifting mechanism, one end of which is arranged on the light box sliding mechanism;

[0053] The welding light box is installed at the other end of the light box lifting mechanism and is driven by the light box lifting mechanism to achieve vertical lifting. The welding light box is used to press the battery cell group and the welding ribbon group onto the pallet and heat them.

[0054] The welding light box of this embodiment can slide alternately to the top of the corresponding support plate to apply pressure to the battery cell group and the welding ribbon group for heating and welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] For a clearer explanation, the following briefly introduces the drawings required for the description.

[0056] Figure 1 and Figure 2 A schematic diagram of the structure of a battery string welding machine provided in an embodiment of the present application;

[0057] Figure 3 A schematic diagram of the circulation of the carrying mechanism at each workstation during the operation of the battery string welding machine provided in an embodiment of the present application;

[0058] Figure 4 A schematic diagram of the structure of a battery string conveying device 100 provided in an embodiment of the present application;

[0059] Figure 5 for Figure 4 A is an enlarged schematic diagram;

[0060] Figure 6 A schematic diagram of a portion of the structure of the support mechanism provided in an embodiment of the present application;

[0061] Figure 7 for Figure 6 A magnified schematic diagram of B;

[0062] Figure 8 A schematic diagram of the structure of the regular components provided in the embodiment of the present application;

[0063] Fig. 9 for Figure 8 A magnified schematic diagram of middle C;

[0064] Fig.10 Another schematic diagram of the circulation of the carrying mechanism at each workstation during the operation of the battery string welding machine provided in the embodiment of the present application;

[0065] Fig.11 A schematic diagram of the circulation of the carrying mechanism at each workstation during the operation of the battery string welding machine provided in an embodiment of the present application;

[0066] Fig.12 A schematic diagram of the structure of a welding mechanism provided in an embodiment of the present application.

[0067] Description of reference numerals:

[0068] 1. Battery string welding machine; 2. Welding ribbon group; 3. Battery cell group; 4. Loading station; 5. Welding station; 6. Unloading station;

[0069] 100, battery string conveying device; 200, welding ribbon conveying mechanism; 300, battery cell conveying mechanism; 400, welding mechanism; 500, battery string conveying mechanism;

[0070] 110. Carrying mechanism;

[0071] 111, support plate; 111a, avoidance opening;

[0072] 112a, first guide member; 112b, first slide; 112c, first drive mechanism; 113a, second guide member; 113b, second slide; 113c, second drive mechanism; 113d, motor; 113e, ratchet; 113f, rack;

[0073] 114, adsorption component; 114a, adsorption hole;

[0074] 115. Heating component;

[0075] 116, regularization component; 116a, support; 116b, bottom plate; 116c, support plate; 116d, regularization piece; 116e, groove;

[0076] 117. Lifting drive mechanism;

[0077] 118. Position adjustment drive mechanism;

[0078] 410. Guide rail; 420. Welding base; 430. Light box sliding mechanism; 440. Light box lifting mechanism; 450. Welding light box. DETAILED DESCRIPTION

[0079] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present disclosure.

[0080] At present, when battery cells are string-welded, a conveyor belt is used to span the loading station, welding station and unloading station to receive and convey the welding belt group and battery cell group. Its structure is complex and requires belt tensioning components, conveying drive components, and angle correction components. It also has poor durability and stability. It is easy to deflect or loosen after long-term work, and some parts are severely worn.

[0081] The present application proposes a new battery string conveying device and a battery string welding machine, which can improve the efficiency of conveying operations and have the characteristics of simple structure, strong durability and convenient maintenance.

[0082] Exemplary, combined Figure 1 , Figure 2 and Figure 3 As shown, and refer to Figure 4 The present application provides a battery string welding machine 1, comprising: a battery string conveying device 100, a welding ribbon conveying mechanism 200, a battery cell conveying mechanism 300, a welding mechanism 400 and a battery string conveying mechanism 500, wherein:

[0083] The battery string conveying device 100 includes two parallel supporting mechanisms 110, and the two supporting mechanisms 110 can move back and forth along the first direction in turn (alternately) and pass through the loading station 4, the welding station 5 and the unloading station 6 in sequence;

[0084] The solder strip conveying mechanism 200 is disposed adjacent to one side of the loading station 4, and conveys the solder strip group 2 along the second direction to the support plate 111 at the loading station 4 through the clamping claw assembly;

[0085] The cell transport mechanism 300 is arranged near the other side of the loading station 4, and transports the cell group 3 from the cell feeding mechanism to the support plate 111 at the loading station 4 through the suction cup assembly, and stacks it on the welding ribbon group 2;

[0086] The welding mechanism 400 is arranged adjacent to the welding station 5, and when the welding ribbon group 2 and the battery cell group 3 are transported to the welding station 5 by the pallet 111, the welding mechanism 400 presses the battery cell group 3 and the welding ribbon group 2 and heats them, so that the welding ribbon group 2 is hot-melted and fixed on the surface of the battery cell group 3 to form a battery string;

[0087] The battery string transport mechanism 500 is disposed adjacent to the unloading station 6 , and when the battery string is transported to the unloading station 6 by the pallet 111 , the battery string transport mechanism 500 picks up the battery string on the pallet 111 through the suction cup assembly and sends it to the next process.

[0088] When the carrying mechanism 110 is at the loading station 4, the support plate receives the welding ribbon group 2 and the battery cell group 3. When it is at the welding station 5, it stays for a certain time for the welding ribbon group 2 and the battery cell group 3 to complete the string welding. When it is at the unloading station 6, the battery string formed by the string welding of the welding ribbon group 2 and the battery cell group 3 is unloaded to the next process.

[0089] The string welding mentioned in this application refers to welding a conductive welding ribbon group to the grid lines of a battery cell group by heating, so that adjacent battery cells are electrically connected through the welding ribbon group.

[0090] Generally speaking, one of the main improvements of the battery string conveying device 100 in the present application is that it is equipped with two parallel supporting mechanisms 110, each supporting mechanism 110 is used to receive the welding ribbon group 2 and the battery cell group 3, and the two supporting mechanisms 110 are relatively independent and can move back and forth and pass through the loading station 4, the welding station 5 and the unloading station 6 in sequence, so that the two supporting mechanisms 110 can take turns (alternately) to circulate in each station, shortening the material transportation time at the loading station 4, the welding station 5 and the unloading station 6, and improving the processing efficiency.

[0091] The adjacent setting method refers to the spatial position of one mechanism being close to or adjacent to another mechanism or a part of another mechanism, so that the movement of the two mechanisms is smoother and more efficient when materials flow between the two mechanisms or when other operations requiring the connection or cooperation of the two mechanisms are carried out.

[0092] The following will refer to Figures 4 to 9 , and can be combined with Figures 1 to 3 , the supporting mechanism 110 in the example is described in detail.

[0093] Reference Figure 4 and Figure 5As shown, the bearing mechanism 110 includes a first guide member 112a, a support plate 111 slidably arranged on the first guide member 112a, and a first driving mechanism 112c providing a driving force to drive the support plate 111 to slide on the first guide member 112a. The first guide member 112a extends along the first direction and passes through the loading station 4, the welding station 5 and the unloading station 6 in sequence. The support plate 111 is used to carry the welding ribbon group 2 extending along the first direction and the battery cell group 3 laid on the welding ribbon group 2. The welding ribbon group 2 and the battery cell group 3 are fixed and transported by the support plate 111. As mentioned above, the first driving mechanism 112c drives the support plate 111 to reciprocate along the first direction on the first guide member 112a, so that the support plate 111 can carry the welding ribbon group 2 and the battery cell group 3 or pass through the loading station 4, the welding station 5 and the unloading station 6 in sequence without loading. When in the loading station 4, the support plate 111 receives the welding ribbon group 2 and the battery cell group 3. At welding station 5, the support plate 111 stays for a certain time to allow the welding ribbon group 2 and the battery cell group 3 to complete the string welding. At unloading station 6, the battery string formed by the string welding of the welding ribbon group 2 and the battery cell group 3 is unloaded from the support plate 111 to the next process.

[0094] In this embodiment, the first driving mechanism 112c drives the pallet 111 to reciprocate along the first guide component 112a extending along the first direction, so that the pallet 111 can flow through various workstations. This conveying device has a simple structure, strong durability and easy maintenance.

[0095] In this embodiment, the two supporting mechanisms 110 arranged in parallel can be understood as two first guide members 112a arranged in parallel, and each first driving mechanism 112c drives the corresponding support plate 111 to slide on the respective first guide member 112a. The two support plates 111 reciprocate along the first direction on the respective first guide members 112a, so as to circulate in each station in turn, shortening the conveying time of the materials in the loading station 4, the welding station 5 and the unloading station 6, and improving the processing efficiency.

[0096] It is understandable that if Figure 3 As shown, when the two pallets 111 reciprocate along the first direction on their respective first guide members 112a, they each have an independent loading station 4, welding station 5 and unloading station 6. Independence means that when the two pallets 111 move, there is no spatial overlap or interference at these positions. When one group of materials is processed at the welding station 5, the other group of materials can be moved arbitrarily at the loading station 4 and the unloading station 6 driven by the corresponding pallet 111, further improving the processing efficiency.

[0097] Reference Figure 4As shown, the bearing mechanism 110 is configured with a mechanism for realizing the reciprocating movement of the pallet 111 in the first dimension (first direction). In an implementation example, the bearing mechanism 110 is configured with a first slide 112b that is relatively independent of the pallet 111, and the relatively independent feature can be realized by the detachable installation and matching relationship between the pallet 111 and the first slide 112b. The first slide 112b forms a sliding match with the first guide member 223a, and the first slide 112b also forms a fixed support for the pallet 111. This detachable installation and matching structure facilitates independent maintenance of each component. Specifically, the bearing mechanism 110 also includes a first slide 112b, which is slidably arranged on the first guide member 112a, and the first slide 112b is used to support and fix the pallet 111, and the first driving mechanism 112c provides a driving force for the first slide 112b, and under the action of the driving force, the first slide 112b reciprocates with the pallet 111 on the first guide member 112a. In a specific implementation, the first driving mechanism 112c may include a main pulley, a slave pulley and a traction belt, the traction belt is wound around the main pulley and the slave pulley, the first slide 112b is located in front of the main pulley and the slave pulley, and can be pulled by the traction belt to achieve movement on the first guide component 223a, and the main pulley drives the traction belt under the action of the power source.

[0098] Continue to refer to Figure 4 and Figure 5As shown, the supporting mechanism 110 is configured with a mechanism for realizing the reciprocating movement of the pallet 111 in the second dimension (second direction). In one implementation example, the supporting mechanism 110 also includes a second guide component 113a, a second slide 113b and a second driving mechanism 113c, and the second guide component 113a, the second slide 113b and the second driving mechanism 113c are arranged in the space between the first slide 112b and the support plate 111, wherein the second guide component 113a is arranged on the first slide 112b and extends along the second direction, and the second direction is perpendicular to the first direction in the horizontal plane, the second slide 113b is arranged on the second guide component 113a and forms a sliding fit with the second guide portion 113a, and the support plate 111 is supported and fixed by the second slide 113, and the second driving mechanism 113c provides a driving force to drive the second slide 113b to slide on the second guide component 113a. It can be understood that this sliding is the movement of the second slide 113b along the extension direction of the second guide component 113a (i.e., the second direction). The supporting mechanism 110 of this embodiment can adjust the position of the pallet 111 in two dimensions in the horizontal plane. Specifically, the pallet 111 can realize position adjustment in one dimension (first direction) based on the first guide component 112a, the first slide 112b and the first driving mechanism 112c. The position of the pallet 111 can be adjusted in another dimension (second direction) by driving the second slide 113b to slide on the second guide component 113a using the second driving mechanism 113c.

[0099] According to the mechanism for realizing reciprocating movement in the second dimension (second direction) described above, the supporting mechanism 110 can enable the two pallets 111 to have the same spatial position at one of the loading station 4, the welding station 5 and the unloading station 6, so as to simplify the equipment configuration of the solder strip conveying mechanism 200, the battery cell conveying mechanism 300, the welding mechanism 400 and the battery string conveying mechanism 500, and optimize the movement amount or movement accuracy of these devices.

[0100] Exemplary, combined Figure 5As shown, the second driving mechanism 113c described above includes a motor 113d and a rack 113f, the motor 113d is mounted on the second slide 113b, and the output shaft of the motor 113d is provided with a ratchet 113e, the rack 113f is arranged on the first slide 112b, and the rack 113f extends along the second direction (perpendicular to the first direction), the rack 113f and the ratchet 113e form a match, and the motor 113d drives the ratchet 113e to rotate, that is, through the match between the rack 113f and the ratchet 113e, the second slide 113b is realized to slide along the second direction (perpendicular to the first direction). It can be understood that, not limited to the matching structure of the rack 113f and the ratchet 113e, other mechanisms that can drive the second slide 113b to move in a direction perpendicular to the first direction can be applied to the present application, such as a ball screw mechanism, a linear cylinder or a linear module.

[0101] Reference Figure 6 and Figure 7 As shown, in one embodiment, the supporting mechanism 110 also includes an adsorption component 114 for positioning the welding ribbon group 2 and the battery cell group 3 on the pallet 111. Exemplarily, the adsorption component 114 includes a vacuum generator and an adsorption hole 114a provided on the pallet 111. The vacuum generator can be arranged in the space below the pallet 111. The adsorption hole 114a is connected to the vacuum generator through a pipeline (such as a leather hose, etc.) to generate an adsorption force with the help of the vacuum degree generated by the vacuum generator, and the welding ribbon group 2 and the battery cell group 3 are adsorbed and positioned on the pallet 111 with the help of the adsorption force.

[0102] Reference Figure 6 As shown, in one implementation example, the supporting mechanism 110 also includes a heating component 115, which is installed under the support plate. The heating component 115 can be a heating plate or a heating net, which is used to heat the welding ribbon group 2 and the battery cell group 3 located on the support plate 111, thereby increasing the temperature of the welding ribbon group 2 and the battery cell group 3, and facilitating the welding mechanism 400 to implement compression welding.

[0103] Reference Figure 6 and Figure 7 As shown, in an implementation example, the supporting mechanism 110 further includes a tidying component 116, and an avoidance opening 111a is provided on the support plate 111. The tidying component 116 can be driven to extend out of the avoidance opening 111a and adjust the position of the welding ribbon group 2 in the second direction (perpendicular to the first direction).

[0104] Reference Figure 6 , Figure 7 , Figure 8 and Fig. 9As shown, exemplarily, the regularization component 116 includes a support 116a, a bottom plate 116b arranged on the support 116a, and a plurality of support plates 116c, wherein the plurality of support plates 116c are all mounted on the bottom plate 116b, and adjacent support plates 116c have a certain interval along the first direction. Wherein: the support 116a is provided with a lifting drive mechanism 117 and a position adjustment drive mechanism 118, the bottom plate 116b can be adjusted in height by the lifting drive mechanism 117, and can be adjusted in position perpendicular to the first direction by the position adjustment drive mechanism 118, and each support plate 116c is formed with a row of regularization pieces 116d, the number of regularization pieces 116d corresponds to the number of welding strips in the welding strip group 2, and the regularization pieces 116d are extended from the avoidance opening 111a and touch the welding strip by means of the height adjustment described above, thereby adjusting the position of the welding strip group 2, and then eliminating the position error generated when the welding strip conveying mechanism 200 places the welding strip, so as to ensure the quality of battery string welding.

[0105] Reference Fig. 9 As shown, exemplarily, in order to ensure that the position of the solder strip is adjusted within the moving range of the regulating piece 116d, a groove 116e is provided on each regulating piece 116d, and the groove 116e is used to accommodate the solder strip when the regulating piece 116d is extended to avoid the opening 111a. The groove 116e accommodates the solder strip, and the regulating piece 116d can be driven to move the solder strip to adjust the position. In this example, the solder strip accommodated in the groove 116e always moves with the regulating piece 116d, so as to achieve relatively accurate position adjustment.

[0106] Reference Figure 8 As shown, as an implementation example of the positioning drive mechanism 118, the positioning drive mechanism 118 includes a ball screw, a mounting portion arranged on the base plate 116b, and a driving wheel arranged on the support 116a. The ball screw includes a ball nut and a screw rod matched with the ball nut. The ball nut is mounted on the support 116a. One end of the screw rod passing through the ball nut is connected to the mounting portion by threaded engagement, and the other end is equipped with a driven wheel. The driving wheel drives the driven wheel through a belt and then drives the ball screw to rotate. The rotation of the ball screw can drive the regular piece 116d to move in a direction perpendicular to the first direction. After the welding strip is placed on the support plate 111, the position can be adjusted along with the movement of the regular piece 116d.

[0107] Reference Figure 8As shown, as an implementation example of the lifting drive mechanism 117, the lifting drive mechanism 117 includes a ring and a cam installed in the ring, the ring is installed on a side wall of the support 116a, the ring is sleeved outside the cam, and the cam is in contact with the upper part of the inner peripheral wall defined by the ring, and there is always a gap between the inner peripheral wall and the cam in the horizontal direction. The inner peripheral wall defined by the ring has a first inner diameter along the horizontal direction and a second inner diameter along the vertical direction, and the first inner diameter is greater than the second inner diameter. The cam can be driven to rotate eccentrically, and the cam does not touch the inner peripheral wall of the ring in the horizontal direction when rotating in the horizontal direction, and the eccentric rotation of the cam causes the ring to be displaced in the vertical direction and then adjusts the height of the bottom plate 116b, thereby prompting the regular piece 116d to move up and down through the avoidance opening 111a. When adjusting the position of the welding strip, the cam rotates to the position of lifting the annular part in the vertical direction, and the regulating piece 116d extends from the avoidance opening 111a, thereby touching the welding strip on the support plate 111 and realizing the position adjustment; after completing the welding strip position adjustment, the cam rotates to the position of lowering the annular part in the vertical direction, and the regulating piece 116d is lowered to below the support plate 111 through the avoidance opening 111a to avoid affecting the laying of the battery cells.

[0108] The above mainly discusses the structural form of the supporting mechanism 110. Now let's go back to the battery stringer 1 described above. Figure 10 to Figure 11 And refer to Figures 1 to 4 Some embodiments of the battery stringer are further described.

[0109] Combination Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments, when the two pallets 111 move back and forth, there is a loading station 4, a welding station 5 and an unloading station 6 respectively, which reduces the burden of the supporting mechanism 110.

[0110] In order to achieve the above purpose, the battery cell transport mechanism 300 needs to have the function of reciprocating along the first direction to pick up the battery cell group and send it to the top of the two loading stations 4. The battery cell transport mechanism 300 also needs to have the function of horizontal sliding along the second direction to accurately place it directly above any one of the two loading stations 4, and the battery cell transport mechanism 300 also needs to have the function of vertical lifting to place the picked up battery cell group on the supporting mechanism 110 at the loading station 4. The battery string transport mechanism 500 needs to have the function of horizontal sliding along the second direction to move to the top of any one of the two unloading stations 6, and needs the function of vertical lifting to pick up the battery string. The above functions can all be achieved by the driving mechanism commonly used in the field, such as a linear module, a pulley assembly, a ball screw mechanism or a linear cylinder, etc., which will not be elaborated here. Combined with Fig.10 and Fig.11As shown, in some embodiments, the two pallets 111 have the same loading station 4 when reciprocating, which reduces the burden on the cell conveying mechanism 300 and the solder strip conveying mechanism 200, and can avoid affecting the movement accuracy of the cell conveying mechanism 300 and the solder strip conveying mechanism 200. In this way, the spatial arrangement structure of the solder strip group conveying mechanism 200 and the cell conveying mechanism 300 can also be reduced and simplified.

[0111] Combination Fig.10 and Fig.11 As shown, in some embodiments, the positions of the two support plates 111 at the welding station 5 are independent of each other to avoid interference during the welding operation.

[0112] Combination Fig.10 As shown, in one embodiment, the positions of the two pallets 111 at the unloading station 6 are independent of each other. Fig.11 As shown, in another embodiment, the two pallets 111 have unloading stations 6 at the same position when reciprocating, thereby reducing and simplifying the number of battery string transport mechanisms 500 and the movement amount of the battery string transport mechanisms 500.

[0113] Combination Fig.10 and Fig.11 As shown, in some embodiments, the two pallets 111 are at the same position at the loading station 4, and in order to optimize the layout space of related equipment, the position is located between the two first guide components 112a and deviates from one of the first guide components 112a.

[0114] Reference Fig.12 Combined with Figure 2 As shown, when the battery stringer 1 described above is specifically implemented, the welding mechanism 400 includes a guide rail 410, a welding base 420, a light box sliding mechanism 430, a light box lifting mechanism 440 and a welding light box 450, wherein: the guide rail 410 extends above the welding station 5, and the extension direction of the guide rail 410 is perpendicular to the first direction, the welding base 420 is slidably arranged on the guide rail 410, and the light box sliding mechanism 430 drives the welding base 420 to slide back and forth along the guide rail 410, and slides alternately to the two carriers located at the welding station 5 Above the structure 110, the light box lifting mechanism 440 is used to drive the welding light box 450 to lift vertically. The light box lifting mechanism 440 has a fixed end and a lifting end. The fixed end is installed on the driving welding base 420. The lifting end of the light box lifting mechanism 440 is installed with a welding light box 450. The welding light box 450 is driven by the light box lifting mechanism 440 to achieve vertical lifting. The welding light box 450 circulates between two welding stations 5. During the welding operation, the welding light box 450 is used to press the battery cell group 3 and the welding ribbon group 2 on the pallet and heat them.

[0115] In the above description of the present application, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected" or "connected" and the like should be understood in a broad sense. For example, with regard to the term "connection", it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. Therefore, unless otherwise clearly defined in the present application, those skilled in the art can understand the specific meanings of the above terms in the present application according to the specific circumstances.

[0116] According to the above description of the present application, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "length", "width", "thickness", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "center", "longitudinal", "lateral", "clockwise" or "counterclockwise", etc., which indicate orientation or positional relationships, are based on the orientation or positional relationships shown in the drawings of the present application, and are only for the purpose of facilitating the explanation of the scheme of the present application and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operate in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as limitations on the scheme of the present application.

[0117] In addition, the terms "first" or "second" used in this application to refer to numbers or ordinals are only used for descriptive purposes and cannot be understood as explicitly or implicitly indicating relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this application, the meaning of "plurality" is at least two, such as two, three or more, etc., unless otherwise clearly and specifically defined.

[0118] Although multiple embodiments of the present application have been shown and described herein, it is obvious to those skilled in the art that such embodiments are provided only by way of example. Those skilled in the art can think of many changes, modifications and alternatives without departing from the thought and spirit of the present application. It should be understood that in the process of practicing the present application, various alternatives to the embodiments of the present application described herein can be adopted. The attached claims are intended to limit the scope of protection of the present application, and therefore cover equivalents or alternatives within the scope of these claims.

Claims

1. A battery string conveying device, characterized in that: The battery string conveying device comprises two supporting mechanisms arranged in parallel, and the supporting mechanisms comprise: A first guide component extends along a first direction and passes through a loading station, a welding station and a unloading station in sequence; a support plate, slidably disposed on the first guide component, the support plate being used to carry and fix the welding ribbon group extending along the first direction and the battery cell group laid on the welding ribbon group; and The first driving mechanism drives the support plate to reciprocate along the first direction on the first guide component.

2. The battery string conveying device according to claim 1, characterized in that: The carrying mechanism also includes: The first slide seat is slidably disposed on the first guide component and supports the support plate, and the first slide seat is driven by the first driving mechanism to move along a first direction on the first guide component.

3. The battery string conveying device according to claim 2, characterized in that: The first slide is provided with a second guide component extending along a second direction, and the second direction is perpendicular to the first direction on a horizontal plane. The supporting mechanism also includes a second slide and a second driving mechanism. The second slide is slidably arranged on the second guide component, and the second driving mechanism drives the second slide to move along the second direction on the second guide component.

4. The battery string conveying device according to claim 3, characterized in that: The second driving mechanism comprises: A motor, wherein the motor is mounted on the second slide and an output shaft of the motor is provided with a ratchet; A rack matched with the ratchet wheel is disposed on the first sliding seat and extends along the second direction.

5. The battery string conveying device according to claim 1, characterized in that: The carrying mechanism also includes: an adsorption assembly, comprising a vacuum generator and an adsorption hole provided on the support plate, wherein the adsorption hole is connected to the vacuum generator to adsorb the welding ribbon group and the battery cell group; and / or, A heating assembly is installed below the support plate and is used to heat the welding ribbon group and the battery cell group on the support plate.

6. The battery string conveying device according to claim 1, characterized in that: The bearing mechanism further includes a tidying component, the support plate is provided with an avoidance opening, the tidying component can be driven to extend out of the avoidance opening and adjust the position of the welding ribbon group perpendicular to the first direction, and the tidying component includes: The support is provided with a lifting drive mechanism and a position adjustment drive mechanism; A bottom plate, which is arranged on the support and can be adjusted in height by the lifting drive mechanism, and can be adjusted in position perpendicular to the first direction by the position adjustment drive mechanism; A plurality of support plates are arranged on the bottom plate at intervals along a first direction, and a row of regular pieces is formed on each of the support plates, and the number of the regular pieces corresponds to the number of welding strips in the welding strip group.

7. The battery string conveying device according to claim 6, characterized in that: The regulating piece is provided with a groove, and the groove is used to accommodate the welding strip when the regulating piece extends out of the avoidance opening.

8. The battery string conveying device according to claim 6, characterized in that: The positioning drive mechanism comprises: A mounting portion, arranged on the bottom plate; A ball screw, comprising a ball nut and a screw rod matched with the ball nut, wherein the ball nut is mounted on the support, one end of the screw rod is threadedly connected to the mounting portion, and the other end of the screw rod is mounted with a driven wheel; The driving wheel is arranged on the support and drives the driven wheel through a belt.

9. The battery string conveying device according to claim 6, characterized in that: The lifting drive mechanism comprises: an annular member, mounted on one side of the support, the annular member defining an inner peripheral wall, and the inner peripheral wall having a first inner diameter along a horizontal direction and a second inner diameter along a vertical direction, and the first inner diameter is greater than the second inner diameter; A cam is provided and abuts against the upper portion of the inner peripheral wall, and the cam can be driven to rotate eccentrically.

10. A battery string welding machine, characterized in that: include: The battery string conveying device according to any one of claims 1 to 9; A solder strip transport mechanism is disposed adjacent to one side of the loading station and is used to transport the solder strip group to a support plate at the loading station; A cell transport mechanism is provided adjacent to the other side of the loading station, and is used to transport the cell group to the pallet at the loading station and stack it on the welding ribbon group; A welding mechanism is arranged adjacent to the welding station, and when the welding ribbon group and the battery cell group are transported to the welding station by the pallet, the welding mechanism presses the battery cell group and the welding ribbon group and heats them, so that the welding ribbon group is hot-melted and fixed on the surface of the battery cell group to form a battery string; The battery string transport mechanism is arranged adjacent to the unloading station, and when the battery string is transported to the unloading station by the pallet, the battery string transport mechanism picks up the battery string on the pallet and sends it to the next process.

11. The battery stringer according to claim 10, characterized in that: The two pallets are located at the same position at the loading station; and / or, The positions of the two support plates at the welding station are independent of each other; and / or, The positions of the two support plates at the unloading station are the same or independent of each other.

12. The battery stringer according to claim 10, characterized in that: The two support plates are located at the same position at the loading station, between the two first guide components, and deviate from one of the first guide components.

13. The battery stringer according to claim 10, characterized in that: The welding mechanism comprises: A guide rail extending above the welding station, and the extending direction is perpendicular to the first direction; A welding base, slidably arranged on the guide rail; The light box sliding mechanism is used to drive the welding base to slide back and forth along the guide rail and slide alternately to the top of the two bearing mechanisms located at the welding station; A light box lifting mechanism, one end of which is arranged on the light box sliding mechanism; The welding light box is installed at the other end of the light box lifting mechanism and is driven by the light box lifting mechanism to achieve vertical lifting. The welding light box is used to press the battery cell group and the welding ribbon group onto the support plate and heat them.

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