A regular component, a bearing module, a battery string bearing mechanism and a string welding machine

Abstract

The present application discloses a regular assembly, a bearing module, a battery string bearing mechanism and a string welding machine, and belongs to the technical field of photovoltaic battery string production equipment. The regular assembly of the present application includes a support, n guide slots and a reset member, the n guide slots and the reset member are arranged in the support, the reset member is configured to drive the corresponding n guide slots to be in a first position, the upper surface of the support is configured to carry a plurality of welding strips extending along a first direction, and each guide slot is configured to allow a welding strip carried along the upper surface of the support to fall into; after the battery cell is pressed on the n guide slots, the guide slots are pressed down to the second position by the battery cell, so that the welding strip defined in the guide slots fits the lower surface of the battery cell; after the battery cell and the welding strip are separated from the regular assembly, the reset member is also configured to drive the n guide slots from the second position back to the first position. The present application helps to avoid the mutual influence between the guide slots and reduce the accuracy of the regular position of the welding strip.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of photovoltaic cell string production equipment. Specifically, the present application relates to a regular component, a bearing module, a cell string 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. Summary of the invention

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application provides a regular component, a bearing module, a battery string bearing mechanism and a string welding machine to ensure that the welding strip is accurately positioned during the string operation and to avoid the probability of whitening of the battery cell grid line of the battery string after stringing.

[0005] In order to solve the above problems, the technical solutions adopted in this application are as follows:

[0006] In a first aspect, the present application provides a tidying assembly, the tidying assembly comprising a support, n guide grooves and a reset member, wherein:

[0007] n guide grooves and a reset member are arranged in the support, the reset member is configured to drive the corresponding n guide grooves to be in a first position, and the n guide grooves in the first position partially protrude from the upper surface of the support;

[0008] The upper surface of the support is configured to carry a plurality of welding strips extending along a first direction, each guide groove is configured to allow a welding strip extending along the first direction to fall into, and to limit the movement amount of the fallen welding strip along a second direction, the second direction is perpendicular to the first direction on a horizontal plane, and the first direction is the length direction of the welding strip;

[0009] After the battery cell is pressed onto the n guide slots, the guide slots are pressed down to a second position by the battery cell, so that the welding strip defined in the guide slots fits the lower surface of the battery cell;

[0010] After the battery cells and the welding strips are separated from the regular assembly, the reset member is further configured to drive the n guide slots to return from the second position to the first position.

[0011] The regulating components provided in the present application each have a row of guide grooves, and the guide grooves on each regulating component independently extend and descend relative to the guide grooves of other regulating components to regulate the position of the welding strip. Compared with the method in the related art in which the guide grooves in contact with the welding strip are driven to rise and fall by the same structure or related structures to implement regulation, the present solution helps to avoid mutual influence between the guide grooves and reduce the accuracy of welding strip position regulation.

[0012] Optionally, the organizing component also includes a guide member located in the support, which is rotatably connected to the support around a second direction, and n guide grooves are arranged on the guide member along the second direction, and the rotation of the guide member causes the guide grooves to rise and fall relative to the upper surface of the support.

[0013] The reset member drives the n guide groove bodies to rise relative to the upper surface of the support and return to the initial position.

[0014] By arranging a rotatable guide member in the support and fixing the guide slot body with the guide member, the rotation of the guide member can drive the guide slot body to achieve fixed contact between the battery cell and the welding strip for welding, and the rotation of the guide member can also be used to reset the guide slot body, so as to facilitate welding of the next battery cell.

[0015] Optionally, the reset member is disposed on one end of the guide member away from the n guide grooves, and the reset member is configured to cause the center of gravity of the guide member to deviate from the rotation axis of the guide member;

[0016] When there is no external force, the guide member rotates under its own weight to make the guide groove body rise to the first position.

[0017] The center of gravity of the guide member is set to deviate from the rotation axis of the guide member by setting the reset member at the position of the guide member, so as to realize automatic reset of the guide groove body. The eccentric setting is utilized to realize extension by its own weight and to realize descending when pressed down by the battery cell. No additional drive is required, the structure is simple and the cost is low.

[0018] Optionally, the tidying component also includes a rotating shaft, which is inserted into the guide member, one end of which is fixed to the support, and the guide member is rotatably connected to the support via the rotating shaft.

[0019] The guide member rotates in the support by a rotating shaft, has a simple structure, and is easy to install and maintain.

[0020] Optionally, the reset member is a first elastic member, the first elastic member is arranged between the support and the guide member, and the guide member is acted upon by the elastic force of the first elastic member so that the guide groove body is in the first position.

[0021] The first elastic component is arranged between the support and the guide member to realize the automatic reset of the guide slot body. The elastic force generated by the first elastic component is used to drive the guide member to rotate so that the guide slot can be extended, and the guide slot can be lowered when pressed by the battery cell. The driving method is simple, and a single guide member is independently configured with the first elastic component, and there is no interference between the guide members, and the independence is strong.

[0022] Optionally, the first elastic component is located below the rotation axis of the guide member.

[0023] The position where the guide member is fixed to the first elastic member is far from the rotation axis. When the guide groove body at the top of the guide member is pressed down along with the battery cell, the tail end of the guide member and the fixed position of the first elastic member have a larger movement stroke than the top end, making it easier for the first elastic member to be in a compressed state. When the battery string is moved away by the transport mechanism, the first elastic member can provide a sufficiently large rebound force to reset the guide member and the guide groove body.

[0024] Optionally, the support and / or the guide member is provided with a receiving groove, and the receiving groove is used to fix the end of the first elastic component.

[0025] The support and the guide member are used to open a receiving groove to receive the end of the first elastic member, thereby ensuring that both ends of the first elastic member are stably fixed, thereby helping to ensure the consistency of the guide member returning to the first position with the guide groove body.

[0026] Optionally, the support is provided with a limiting protrusion, and when the guide slot body is in the first position, the limiting protrusion abuts against the guide member to make the guide slot body in a vertically upward state.

[0027] The use of the limiting protrusion abutting the guide member can ensure that the guide groove body is in a vertically upward state when in the first position, and the vertically upward state can ensure that the guide groove can be well extended to clamp the welding strip.

[0028] Optionally, the number of reset members is n, the n reset members correspond one-to-one to the n guide slot bodies, and each reset member is configured to drive the corresponding guide slot body to be in the first position.

[0029] This solution ensures that the n guide grooves arranged along the first direction are not only independent of each other when pressed down by the battery cells, but also independent of each other when reset to the first position by the reset member, thereby avoiding mutual influence between the guide grooves and reducing the accuracy of the regular position of the welding strip.

[0030] The second aspect of the present application provides a carrying module, which includes a carrying body and at least two regular components as described in any one of the first aspects above, wherein the multiple regular components are spaced apart along a first direction and are detachably embedded in the carrying body, the upper surfaces of the supports of the multiple regular components are flush with the upper surface of the carrying body, and the i-th guide grooves of each regular component jointly define a welding strip.

[0031] By dividing the carrying area corresponding to each battery cell on the carrying module, each carrying area has at least two accommodating cavities, and by arranging a regular component in each accommodating cavity to regularize the position of the laid welding strip, so that the position of the welding strip is not offset, thereby ensuring that each welding strip is located at a preset position, thereby improving the processing efficiency and reducing the probability of whitening of the battery cell grid line during the string operation, thereby reducing the defective rate of battery string welding and improving the battery string welding quality.

[0032] Optionally, the carrier module further includes an adsorption component, which includes a plurality of adsorption heads arranged on the carrier body, and a negative pressure device connected to the adsorption heads, and the adsorption heads adsorb the battery cells under the action of the negative pressure device;

[0033] The adsorption heads are lower than the upper surface of the supporting body, the adsorption heads are distributed in rows, and at least one row of adsorption heads is distributed between two adjacent accommodating cavities.

[0034] The coordination of multiple adsorption heads and negative pressure equipment is used to ensure the stability of the position of the battery cell and the welding ribbon, increase the coverage area of ​​the negative pressure adsorption holes, and thus improve the stability and reliability of the adsorption of the adsorption component.

[0035] Optionally, the carrier module further includes a heating component, which is located in the carrier body and is used to heat the carrier body and the battery cells and welding strips it carries.

[0036] The heating component is used to realize the automatic heating function of the battery cell group and the welding belt group carried by the carrying body.

[0037] A third aspect of the present application provides a battery string carrying mechanism, which includes a base and a plurality of carrying modules as described in any one of the second aspects above, wherein the plurality of carrying modules are arranged on the base along a first direction, and the plurality of carrying modules are detachably mounted on the base, and each carrying module corresponds to carrying a battery cell.

[0038] By detachably installing the carrying module on the base, the stability of the fixation of multiple battery cells and welding ribbon groups is achieved, and the fixed battery cells and welding ribbon groups are transported to the welding station for welding, ensuring the stability of the performance of the battery string after welding.

[0039] A fourth aspect of the present application provides a string welding machine, which includes a string assembly mechanism, a welding mechanism, and a battery string carrying mechanism and a conveying mechanism as described in the third aspect above, wherein:

[0040] 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 conveying mechanism is connected to the battery string carrying mechanism, the conveying mechanism is configured to drive the battery string carrying 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;

[0041] When the conveying mechanism drives the battery string carrying mechanism to move to the string assembly station, the string assembly mechanism is configured to lay the welding ribbon on the battery string carrying mechanism, and the welding ribbon falls into the corresponding guide groove body. The string assembly mechanism is also configured to lay a number of battery cells on each carrying module to implement string assembly;

[0042] When the conveying mechanism drives the battery string carrying mechanism to move to the welding station, the welding mechanism performs string welding on the battery string carrying mechanism after the string assembly is completed and the battery cells are string welded.

[0043] Through the cooperation of the string assembly mechanism, welding mechanism, battery string carrying mechanism and conveying mechanism, automatic string assembly and string welding of battery cell groups and welding ribbon groups are realized, and the working efficiency is high; the regularization component in the battery string carrying mechanism can regularize each welding ribbon of the welding ribbon group adsorbed by the adsorption component at the string assembly station, 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 battery string string welding and improving the string welding quality of the battery string; at the same time, the conveying mechanism is used to drive the battery string carrying mechanism to move alternately to the string assembly station and the welding station, which simplifies the overall structure and facilitates the maintenance and repair of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 This is a schematic diagram of the structure of the battery string connection method in this embodiment;

[0045] Figure 2 A schematic diagram of the structure of the regular components provided in this embodiment;

[0046] Figure 3 for Figure 2 Middle AA section view;

[0047] Figure 4 A schematic diagram of the structure of another structured component provided in this embodiment, wherein (a) is a schematic top view of the structured component, and (b) is a BB cross-sectional view in (a);

[0048] Figure 5 A schematic diagram of the structure of the load-bearing module provided in this embodiment;

[0049] Figure 6A schematic diagram of the structure of the battery string supporting mechanism provided in this embodiment.

[0050] Description of reference numerals:

[0051] 1-cell; 2-welding ribbon assembly;

[0052] 10-regular assembly; 11-carrying module; 12-battery string carrying mechanism; 20-carrying body; 30-heating assembly;

[0053] 100-support; 101-accommodating groove; 102-limiting protrusion; 121-base; 200-guide groove body; 201-accommodating cavity; 202-adsorption head; 203-inflatable block; 210-guide groove; 300-reset member; 301-thermocouple; 302-electric heating tube; 310-first elastic component; 400-guide member; 500-rotating shaft. DETAILED DESCRIPTION

[0054] 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.

[0055] When back-contact battery strings are assembled, the welding 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 welding ribbon group. The supporting mechanism is provided with an adsorption component to adsorb and fix the laid welding ribbon group and battery cell group, and then welding is performed at the welding station to achieve a fixed connection between the battery cell and the welding ribbon. Multiple battery cells can be formed into a battery string by welding with the welding ribbon group, and the grid lines on the back of the battery cells are connected in series through the welding ribbon.

[0056] The battery string arrangement method in this application is as follows Figure 1 As shown, a plurality of first electrodes (such as positive electrodes) and second electrodes (such as negative electrodes) with opposite polarities are provided on the back of each battery cell 1, the plurality of first electrodes are arranged in a row along the length direction of the battery cell 1, the plurality of second electrodes are arranged in a row along the length direction of the battery cell 1, and the plurality of first electrodes and the plurality of second electrodes are arranged alternately.

[0057] like Figure 1As shown, the back-connected battery cells 1 are welded in series in the following manner: N (such as 5 in the figure) battery cells 1 are arranged in a row with their backs facing upwards along the width direction of the battery cells 1, and the polarities of the electrodes of two adjacent battery cells 1 on the same straight line are opposite. N+1 (such as 6 in the figure) welding ribbon groups 2 are used to connect the N battery cells in series. The definition of welding ribbon group 2 is i welding ribbons (10 in the figure) arranged in a row along the length direction of the battery cells, and the ends of the welding ribbons in the row are flush. The welding ribbons of two adjacent welding ribbon groups 2 are staggered in the length direction of the battery cells and staggered in the width direction of the battery cells 1.

[0058] Based on the specific functions of the welding strips, the welding strips are divided into end welding strip groups and middle welding strip groups. Figure 1 The ends of the leftmost and rightmost welding ribbon groups 2 protrude from the battery cell 1. The leftmost and rightmost welding ribbon groups 2 are end welding ribbon groups, and the function of the end welding ribbon groups is to realize the series connection of adjacent battery cells 1 by welding bus bars. The several welding ribbon groups 2 in the middle are the middle welding ribbon groups, and each welding ribbon of the middle welding ribbon group simultaneously connects the electrodes of two adjacent battery cells 1 on the same straight line, thereby realizing the electrical connection of two adjacent battery cells 1.

[0059] The welding ribbon group 2 is generally carried to the carrying mechanism together by clamping both ends of each welding ribbon through multiple groups of clamps of the carrying mechanism, and then the welding ribbon group 2 falls on the carrying mechanism. Since the welding ribbon is very thin, it is easy to deviate when it is separated from the clamps of the carrying 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.

[0060] To this end, some implementation schemes use multiple groups of regular parts installed in rows on long strip supports. Usually, multiple groups of regular parts or two adjacent groups of regular parts are driven by the same structure or associated structure. When stringing, the welding strips are regularized by driving multiple groups of regular parts to lift and lower to ensure that the position of the laid welding strips is not offset, so as to avoid the whitening of the grid lines of the battery cells after stringing. This implementation scheme requires that when the battery cells and welding strips are laid on the bearing surface, the bottom surface of the battery cells can be well fitted with the welding strips. Therefore, the processing of the regular parts and the support members requires high precision to ensure that the top of the regular parts is flush. In addition, when stringing, the bearing mechanism of the battery cells and welding strips needs to be heated by the welding mechanism together with the battery cells, and the heating will cause the support members and the regular parts to be slightly deformed, which will make it difficult to ensure that the tops of the multiple groups of regular parts are always flush, and then the battery cells pressed on the top of the regular parts cannot be well fitted with the welding strips. Therefore, during installation and commissioning, the problem of heating deformation needs to be considered. Such constraints greatly affect the processing efficiency.

[0061] In order to solve the above problems, the present application provides a structured component 10, such as Figure 2 and Figure 3As shown, Figure 2 is a schematic diagram of the structure of the regular component 10, Figure 3 for Figure 2 Section view along AA.

[0062] The tidying assembly 10 includes a support 100, n guide grooves 200 and a reset member 300, wherein: the n guide grooves 200 and the reset member 300 are arranged in the support 100, schematically, the support 100 is provided with a second direction (for example Figure 2 The guide slot 200 and the reset member 300 are arranged in the opening, and the reset member 300 is configured to drive the corresponding n guide slots 200 to be in the first position (i.e. Figure 3 The n guide slots 200 at the first position partially protrude from the upper surface of the support 100; the upper surface of the support 100 is configured to carry multiple guide slots along the first direction ( Figure 2 The guide slots 200 are configured to allow a welding strip extending in the first direction to fall into the guide slots 200, and each guide slot 200 limits the welding strip extending in the second direction ( Figure 2 The second direction is perpendicular to the first direction in the horizontal plane, and the first direction is the length direction of the welding strip.

[0063] Each guide slot 200 is provided with a guide slot 210, and the guide slot 210 is used to accommodate a welding strip. After a number of welding strips are sequentially dropped into the corresponding guide slots 210, the battery cells are laid on the regular assembly 10, and the battery cells are pressed on the n guide slots 200. The guide slots 200 are pressed down to the second position by the battery cells. At this time, the welding strips defined in the guide slots 200 are attached to the lower surface of the battery cells, and the attached welding strips and battery cells are welded in the welding process. When the welding is completed, the battery cells and welding strips are separated from the regular assembly 10, and the reset member 300 is also configured to drive the n guide slots 200 back to the first position from the second position.

[0064] Among them, n can be 6, 7, 8, 9, 10, 11, 12, 13, 14 or more, and the number of weld strips in each weld strip group is 12, 14, 18, 20, 24 or other numbers of general weld strip groups. It should be noted that, according to the above, the number n of guide grooves 200 is twice the number of weld strips in the weld strip group, and n guide grooves 200 can simultaneously provide space for several weld strips of two staggered weld strip groups to fall into.

[0065] It should be added that when a conveying mechanism is used to convey the battery cells to the regular assembly 10, considering that the battery cells themselves are light in weight, they may not be sufficient to press the guide groove body 200 down to the second position. It is necessary to use a conveying assembly to press the upper surface of the battery cells so that the guide groove body 200 of the regular assembly 10 in contact with the battery cells is pressed down to the second position by the battery cells, so as to achieve the bonding between the battery cells and the welding strips, and to perform welding through the welding process.

[0066] The present application provides a regularization component 10, each of which is provided with a row of guide grooves 200. The guide grooves 200 on each regularization component 10 extend and descend independently relative to the guide grooves 200 of other regularization components 10 to regularize the position of the welding strip. Compared with the related art in which the guide grooves 200 in contact with the welding strip are driven to rise and fall by the same structure or related structures to implement regularization, the present solution helps to avoid mutual influence between the rows of guide grooves 200 and reduce the accuracy of regularization of the welding strip position.

[0067] In a specific implementation, the n guide groove bodies 200 can be formed of an integrated structure and fixedly mounted on the support 100; or a split structure can be adopted, where each guide groove body 200 is independent of each other, and the n guide groove bodies 200 are on the support 100 along the length extension direction of the support 100 (such as Figure 2 The guide slots 200 are distributed in sequence along the Y direction in the middle of the guide slots 200 and are independently connected and installed with the support 100. In this embodiment, the n guide slots 200 are preferably split structures, that is, the n guide slots 200 are independent of each other; when the structured assembly 10 and the battery cell are heated by the welding mechanism together, even if the guide slots 200 are slightly deformed, since the guide slots 200 are independent of each other, their respective movement positions are not affected by other guide slots 200, and each guide slot 200 can still independently move to the first position and the second position to ensure that the position of the welding strip is not offset.

[0068] like Figure 2 and Figure 3 As shown, in a specific implementation, the organizing component 10 also includes a guide member 400 located in the support 100, a cavity is opened in the support 100, the guide member 400 is accommodated in the cavity, the guide member 400 is rotatably connected to the support 100 around a second direction, and the rotation of the guide member 400 causes the guide groove body 200 to rise and fall relative to the upper surface of the support 100.

[0069] Among them, n guide groove bodies 200 are arranged on one end of the guide member 400 along the second direction, and the other end of the guide member 400 is fixedly connected to the reset member 300. That is, when the battery cell is pressed on the guide groove body 200, the guide groove body 200 rotates with the guide member 400, so that the battery cell descends relative to the upper surface of the support 100 along with the guide groove body 200, and the battery cell is finally pressed against the welding strip in the guide groove 210 and fixedly contacts with the welding strip, and forms a good fit to facilitate welding. When the welding is completed and the battery cell and the welding strip are separated from the support 100, the reset member 300 drives the n guide groove bodies 200 to rise relative to the upper surface of the support 100 and return to the initial position. It should be noted that Figure 3 The diagram shows a structure in which the reset member 300 and the guide member 400 are integrated. The reset member 300 is located at one end of the guide member 400 away from the guide groove body 200. In a specific implementation, the reset member 300 can also be a separate structure connected to the guide member 400.

[0070] A rotatably connected guide member 400 is provided in the support 100, and the guide member 400 is fixedly connected to the guide slot body 200. Schematically, the guide slot body 200 is fixedly connected to the upper end (top end) of the guide member 400. The rotation of the guide member 400 drives the guide slot body 200 to achieve the adhesion of the battery cell and the welding strip for welding. This structure can also achieve the reset of the guide slot body 200 by means of the rotation of the guide member 400 (the rotation can be driven by the reset member 300), so as to facilitate the welding of the next battery cell.

[0071] like Figure 3 As shown, this embodiment provides an implementation structure of a regular assembly 10, wherein the reset member 300 is disposed on one end of the guide member 400 away from the n guide slots 200, that is, the reset member 300 is also accommodated in the cavity in the support 100 and fixedly connected to the guide member 400, and the reset member 300 and the guide slot 200 are respectively located at the two ends of the position where the guide member 400 is connected to the rotating shaft 500. The reset member 300 is configured to make the center of gravity of the guide member 400 deviate from the rotation axis of the guide member 400; when no external force is applied, the guide member 400 is rotated by the self-weight of the reset member 300, so that the guide slot 200 rises to the first position.

[0072] When the guide slot body 200 is in the first position (i.e., the initial position), the top side wall of the guide member 400 is against the support 100, and the guide member 400 is in a vertical state. After the welding ribbon conveying mechanism lays a plurality of welding ribbons on the regular assembly 10 on the transmission platform, each welding ribbon falls into the corresponding guide slot 210 at the top of the guide slot body 200, and the guide member 400 is still in the initial position.

[0073] Then, the battery cell transporting mechanism lays the battery cells on the regular assembly 10 on the transmission platform. When the battery cell transporting mechanism lays the battery cells on the regular assembly 10, the downward pressure of the battery cell transporting mechanism will cause the battery cells to press the guide member 400 downward, and the guide member 400 rotates in the support 100, so that the top part of the guide member 400 retracts into the cavity in the support 100. When the top of the guide member 400 is flush with the welding strip, the guide member 400 stops rotating. At this time, the welding strip is still stuck in the guide groove 210 at the top of the guide member 400, which limits the welding strip and ensures that the welding strip will not deviate during welding or transportation, thereby avoiding whitening of the welding strip.

[0074] When the battery cells are welded, the battery string is moved away by the transport mechanism, and the guide member 400 is restored to its initial position due to its own eccentricity through the action of the reset member 300 on the guide member 400 away from one end of the n guide slots 200 .

[0075] By setting the position of the reset member 300 on the guide member 400, the center of gravity of the guide member 400 deviates from the rotation axis of the guide member 400, so as to realize automatic reset of the guide groove body 200. The eccentric setting is utilized to realize extension by its own weight and to descend when pressed down by the battery cell, without the need for additional drive, with simple structure and low cost.

[0076] Continue as Figure 2 and Figure 3 As shown, the organizing component 10 also includes a rotating shaft 500, one end of which is fixed on the support 100, a through hole is opened on the guide member 400, and the guide member 400 is sleeved on the rotating shaft 500 through the through hole to realize that the guide member 400 is rotatably connected to the support 100 through the rotating shaft 500.

[0077] In addition, in this embodiment, the number of the rotating shafts 500 is two, and the two rotating shafts 500 are rotatably mounted at both ends of the support 100, respectively, and the two rotating shafts 500 are inserted into the guide member 400 fixedly connected to the n guide slot bodies 200, so as to realize the fixed connection of the n guide slot bodies 200 on the support 100. The guide member 400 rotates in the support 100 using the rotating shaft 500, and has a simple structure, which is convenient for installation and maintenance.

[0078] In addition, when the guide groove bodies 200 in the regular component 10 of the present application are independent entities, each guide groove body 200 needs to be rotatably mounted on the support 100 via a rotating shaft 500, so as to achieve the individual rotation of each guide groove body 200.

[0079] like Figure 4As shown, this embodiment also provides another implementation structure of the regular component 10, the reset member 300 is a first elastic member 310, and the first elastic member 310 is arranged between the support 100 and the guide member 400, so that when no battery cell is placed on the guide slot body 200, the guide member 400 is acted upon by the elastic force of the first elastic member 310 to place the guide slot body 200 in the first position. When a battery cell is placed on the guide slot body 200, due to the downward pressure of the battery cell, the guide slot body 200 drives the guide member 400 to rotate in the support 100 to compress the first elastic member 310; when the battery cell is separated from the support 100 after welding with the welding strip, the first elastic member 310 rebounds, driving the guide member 400 and the guide slot body 200 to return to the first position. In specific implementation, the first elastic member 310 can adopt a spring structure.

[0080] The first elastic component 310 is arranged between the support 100 and the guide member 400 to realize the automatic reset of the guide slot 200. The elastic force generated by the first elastic component 310 is used to drive the guide member 400 to rotate so that the guide slot 210 extends and is lowered when pressed by the battery cell. The driving method is simple, and a single guide member 400 is independently configured with the first elastic component 310, and there is no interference between the guide members 400, and the independence is strong.

[0081] When the first elastic component 310 is used, the process of the guide member 400 descending when it is pressed down by the battery cell is basically similar to the process described above when the gravity eccentric setting is used, and no further description is given here. The difference between the two is mainly the different driving force for automatic reset. In the aforementioned embodiment, the guide member 400 returns to the initial position when it is eccentric. In this embodiment, the elastic action of the first elastic component 310 is used to restore the guide member 400 and the guide slot body 200 to the initial position. The driving structure of the above two reset methods is simple and no external force is required.

[0082] Continue as Figure 4 As shown, in one embodiment, the guide member 400 is disposed in the cavity of the support 100 and is rotatably connected to the support 100, and the first elastic component 310 is located below the rotation axis of the guide member 400. The position where the guide member 400 and the first elastic component 310 are fixed is far from the rotation axis. When the guide slot body 200 at the top of the guide member 400 is pressed down with the battery sheet, the tail end of the guide member 400 and the fixed position of the first elastic component 310 have a larger movement stroke than the top end, making it easier for the first elastic component 310 to be in a compressed state, so that when the battery string is moved away by the transport mechanism, the first elastic component 310 can provide a sufficiently large rebound force to reset the guide member 400 and the guide slot body 200.

[0083] like Figure 4As shown, in this embodiment, it is convenient to install the first elastic component 310 in the cavity in the support 100, by providing a receiving groove 101 on the support 100 and / or the guide member 400, and the receiving groove 101 is used to fix the end of the first elastic component 310. In specific implementation, the receiving groove 101 can be provided only on the support 100 or the guide member 400, and the end of the first elastic component 310 can be fixed in the receiving groove 101, and the other end of the first elastic component 310 can be directly abutted on the guide member 400 or the support 100; or the receiving grooves 101 can be provided on both the support 100 and the guide member 400 in the same straight line direction, respectively used to fix the two ends of the first elastic component 310.

[0084] In this embodiment, both the support 100 and the guide member 400 are provided with a receiving groove 101 to accommodate the two ends of the first elastic component 310, thereby ensuring the stability of the two ends of the first elastic component 310, and further ensuring the consistency of the guide member 400 with the guide groove body 200 returning to the first position.

[0085] like Figure 3 and Figure 4 As shown, in the structures of the two regular components 10, a limiting protrusion 102 is provided on the upper surface of the support 100 near the positioning member, and when the guide slot body 200 is in the first position, the limiting protrusion 102 abuts against the guide member 400 so that the guide slot body 200 is in a vertically upward state in the first position. The vertically upward state can ensure that the guide slot 210 can be better extended to clamp the welding strip, and when the guide slot body 200 in this position is pressed down by the battery cell, it can move to the second position based on the downward force.

[0086] In this embodiment, n guide groove bodies 200 can adopt a split structure, each guide groove body 200 has an independent structure, and each guide groove body 200 is separately connected and installed with the support 100. When a reset member 300 is set in the support 100 to reset the guide groove body 200, the number of the reset members 300 is also n, which corresponds one to one with the guide groove bodies 200, that is, each guide groove body 200 has a corresponding guide member 400 and reset member 300 to reset it, and drive the corresponding guide groove body 200 to return to the first position, so that the n guide groove bodies 200 arranged along the first direction are not only independent of each other when pressed down by the battery cell, but also independent of each other when driven to reset to the first position by the reset member 300, which can avoid the mutual influence between the guide groove bodies 200 and reduce the accuracy of the regular position of the welding strip.

[0087] For example, as in the above embodiment, when the reset member 300 is set on the guide member 400 at one end away from the guide groove body 200 and reset in an eccentric manner by gravity, each guide groove body 200 and the fixedly connected guide member 400 are eccentrically set; when the first elastic component 310 is used, a first elastic component 310 is provided between each guide member 400 connected to the guide groove body 200 and the support 100.

[0088] like Figure 5 As shown, based on the same application concept, the embodiment of the present application also provides a supporting module 11, including a supporting body 20 and at least two regular components 10 described in any of the above embodiments, a plurality of regular components 10 are spaced along a first direction and detachably embedded in the supporting body 20, the upper surfaces of the supports of the plurality of regular components 10 are flush with the upper surface of the supporting body 20, and the i-th guide groove 200 of each regular component 10 jointly defines a welding strip.

[0089] Specifically, the carrying body 20 is provided with a plurality of accommodating cavities 201 along the Y direction, and the plurality of accommodating cavities 201 are arranged on the carrying body 20 along the first direction ( Figure 5 wherein each accommodating cavity 201 is used to accommodate one of the above-mentioned regular components 10. When the regular component 10 is accommodated in the accommodating cavity 201, the support surface of the regular component 10 is flush with the upper surface of the carrying body 20, ensuring that after the battery cell is pressed down on the surface of the carrying body 20 by the guide groove 200 in the regular component 10, the carrying body 20 and the support surface of the regular component 10 jointly carry the welding strip, thereby ensuring the stability of the position of the battery cell and the welding strip.

[0090] Each regular component 10 includes n guide grooves 200. The guide grooves 200 of the multiple regular components 10 arranged at intervals along the accommodating cavities 201 on the carrier body 20 correspond one to one along the first direction, that is, the i-th guide grooves 200 of the multiple regular components 10 are all located in the same straight line in the first direction, and jointly define a welding strip.

[0091] The present application divides the carrying area corresponding to each battery cell on the carrying module 11, each carrying area has at least two accommodating cavities 201, and arranges a regular component 10 in each accommodating cavity 201 to regularize the position of the laid welding strips, thereby ensuring that each welding strip is located at a preset position, thereby improving the processing efficiency and reducing the probability of whitening of the battery cell grid line during the string operation, thereby reducing the defective rate of battery string welding and improving the battery string welding quality.

[0092] like Figure 5As shown, the carrier module 11 further includes an adsorption assembly, which includes a plurality of adsorption heads 202 disposed on the carrier body 20, and a negative pressure device connected to the adsorption head 202. The adsorption head 202 adsorbs the battery cell under the action of the negative pressure device, and the adsorption head 202 is lower than the upper surface of the carrier body 20. The battery cell is placed on the regular assembly 10 through the battery cell transport mechanism, and the guide slot 200 contacted by the battery cell is pressed down to the second position, and the adsorption head 202 adsorbs the battery cell to fix the battery cell in the second position.

[0093] Specifically, the adsorption heads 202 are arranged in rows on the carrier body 20, and are arranged in rows in both the X direction and the Y direction, and at least one row of adsorption heads 202 is arranged between two adjacent accommodating cavities 201, so as to improve the adsorption capacity of the adsorption heads 202 on the battery cells. The negative pressure device is connected to the adsorption head 202 through the inflatable block 203. The inflatable block 203 is located on an end face of the carrier body 20 away from the accommodating cavity 201. An air path is arranged inside the inflatable block 203, and the negative pressure device is connected to the adsorption head 202 through the air path to provide adsorption force. The coordination of multiple adsorption heads 202 and negative pressure devices ensures the stability of the position of the battery cells and the welding strips, increases the coverage area of ​​the negative pressure adsorption holes, and thus improves the stability and reliability of the adsorption of the adsorption components.

[0094] like Figure 5 As shown, as an embodiment, the carrier module 11 also includes a heating component 30 located in the carrier body 20, which is used to heat the carrier body 20 and the battery cells and welding strips it carries, thereby realizing the automatic heating function of the battery cell group and welding strip group carried by the carrier body 20.

[0095] Specifically, the heating component 30 includes a thermocouple 301 and an electric heating tube 302. One end of the electric heating tube 302 is fixed in the supporting module 11, and the other end is connected to a power supply for power heating. One end of the thermocouple 301 is also fixed in the supporting module 11 for measuring the heating temperature to ensure the accuracy of the heating effect.

[0096] like Figure 6 As shown, based on the same application concept, this embodiment also provides a battery string carrying mechanism 12, the battery string carrying mechanism 12 includes a base 121 and a plurality of carrying modules 11 as described above, the plurality of carrying modules 11 are arranged along a first direction ( Figure 6 The plurality of supporting modules 11 are detachably mounted on the base 121, and each supporting module 11 correspondingly carries one battery cell.

[0097] By detachably installing the carrier module 11 on the base 121, the stability of the fixation of multiple battery cells and the welding ribbon group is achieved, and the fixed battery cells and the welding ribbon group are transported to the welding station for welding to ensure the stability of the performance of the battery string after welding. Multiple carrier modules 11 are detachably installed on the base 121, which is also convenient for later maintenance. If any carrier module 11 has a problem, it can be directly removed and maintained separately, without having to remove all the carrier modules 11, which is convenient for operation.

[0098] Based on the same application concept, the present embodiment further provides a string welding machine, including a string assembly mechanism, a welding mechanism, a battery string carrying mechanism 12 as described above, and a 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 conveying mechanism is connected to the battery string carrying mechanism 12, the conveying mechanism is configured to drive the battery string carrying mechanism 12 to alternately move 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; when the conveying mechanism drives the battery string carrying mechanism 12 to move to the string assembly station, the string assembly mechanism includes The battery cell transport mechanism and the welding strip transport mechanism are included. The string assembly mechanism is configured to lay the welding strip on the battery string carrying mechanism 12 through the welding strip transport mechanism. Several welding strips fall into the corresponding guide grooves 200 respectively. The string assembly mechanism is also configured to lay several battery cells on each supporting module 11 through the battery cell transport mechanism to implement string assembly, so that the lower surface of the battery cell is attached to the corresponding several welding strips; when the conveying mechanism drives the battery string carrying mechanism 12 to move to the welding station, the welding mechanism performs string welding on the battery string carrying mechanism 12 after the string assembly is completed and the battery cells.

[0099] Through the cooperation of the string assembly mechanism, the welding mechanism, the battery string carrying mechanism 12 and the conveying mechanism, 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 10 in the battery string carrying mechanism 12 can regularize each welding ribbon of the welding ribbon group adsorbed by the adsorption component at the string assembly station to regularize the position of the 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 battery string welding quality; at the same time, the conveying mechanism is used to drive the battery string carrying mechanism 12 to move alternately to the string assembly station and the welding station, which simplifies the overall structure and facilitates the maintenance and repair of the equipment.

[0100] 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.

[0101] 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.

[0102] 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.

[0103] 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 structured component, characterized in that: The tidying assembly comprises a support, n guide grooves and a reset member, wherein: n guide grooves and a reset member are arranged in the support, the reset member is configured to drive the n guide grooves located in the same support to be in a first position, and the n guide grooves in the first position partially protrude from the upper surface of the support; The upper surface of the support is configured to carry a plurality of welding strips extending along a first direction, each guide groove is configured to allow a welding strip extending along the first direction to fall into, and to limit the movement amount of the fallen welding strip along a second direction, the second direction is perpendicular to the first direction on a horizontal plane, and the first direction is the length direction of the welding strip; After the battery cell is pressed onto the n guide slots, the guide slots are pressed down to a second position by the battery cell, so that the welding strips defined in the guide slots are attached to the lower surface of the battery cell; After the battery cell and the welding ribbon are separated from the arranging assembly, the resetting member is further configured to drive the n guide grooves to return from the second position to the first position.

2. The structured assembly according to claim 1, characterized in that: The tidying component also includes a guide member located in the support, which is rotatably connected to the support around the second direction, and n guide grooves are arranged on the guide member along the second direction, and the rotation of the guide member causes the guide grooves to rise and fall relative to the upper surface of the support.

3. The structured assembly according to claim 2, characterized in that: The reset member is arranged on one end of the guide member away from the n guide grooves, and the reset member is configured to make the center of gravity of the guide member deviate from the rotation axis of the guide member; When there is no external force, the guide member rotates under its own weight to make the guide groove body rise to the first position.

4. The structured assembly according to claim 3, characterized in that: The tidying component also includes a rotating shaft, which is inserted into the guide member, one end of which is fixed to the support, and the guide member is rotatably connected to the support via the rotating shaft.

5. The structured assembly according to claim 2, characterized in that: The reset member is a first elastic member, and the first elastic member is arranged between the support and the guide member. The guide member is acted upon by the elastic force of the first elastic member so that the guide groove body is in the first position.

6. The structured assembly according to claim 5, characterized in that: The first elastic component is located below the rotation axis of the guide member.

7. The structured assembly according to claim 5, characterized in that: The support and / or the guide member is provided with a receiving groove, and the receiving groove is used to fix the end of the first elastic component.

8. The structured assembly according to any one of claims 2 to 7, characterized in that: The support is provided with a limiting protrusion, and when the guide slot body is in the first position, the limiting protrusion abuts against the guide member to make the guide slot body in a vertically upward state.

9. The structured assembly according to claim 1, characterized in that: The number of the reset members is n, and the n reset members correspond to the n guide slots one by one, and each reset member is configured to drive the corresponding guide slot to be in the first position.

10. A bearing module, characterized in that: The carrying module includes a carrying body and at least two regular components as described in any one of claims 1 to 9, a plurality of regular components are spaced apart along the first direction and detachably embedded on the carrying body, the upper surfaces of the supports of the plurality of regular components are flush with the upper surface of the carrying body, and the i-th guide groove of each regular component jointly defines a welding strip.

11. The load-bearing module according to claim 10, characterized in that: The carrier module further includes an adsorption component, which includes a plurality of adsorption heads arranged on the carrier body, and a negative pressure device connected to the adsorption heads, and the adsorption heads adsorb the battery sheet under the action of the negative pressure device; The adsorption heads are lower than the upper surface of the supporting body, the adsorption heads are distributed in rows, and at least one row of the adsorption heads is distributed between two adjacent accommodating cavities.

12. The load-bearing module according to claim 10, characterized in that: The carrier module further includes a heating component, which is located in the carrier body and is used to heat the carrier body and the battery cells and welding strips carried by the carrier body.

13. A battery string supporting mechanism, characterized in that: The battery string supporting mechanism includes a base and a plurality of supporting modules as described in any one of claims 10 to 12, wherein the plurality of supporting modules are arranged on the base along a first direction, and the plurality of supporting modules are detachably mounted on the base, and each supporting module correspondingly supports one of the battery cells.

14. A string welding machine, characterized in that: The string welding machine comprises a string assembly mechanism, a welding mechanism, a battery string carrying mechanism and a conveying mechanism as claimed in claim 13, 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 conveying mechanism is connected to the battery string carrying mechanism, the conveying mechanism is configured to drive the battery string carrying 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; When the conveying mechanism drives the battery string carrying mechanism to move to the string assembly station, the string assembly mechanism is configured to lay the welding ribbon on the battery string carrying mechanism, and the welding ribbon falls into the corresponding guide groove body. The string assembly mechanism is also configured to lay a plurality of battery cells on each carrying module to implement string assembly; When the conveying mechanism drives the battery string carrying mechanism to move to the welding station, the welding mechanism performs string welding on the battery string carrying mechanism after the string assembly is completed and the battery cells are welded in series.

Images