Welding strip clamping mechanism and series welding machine

Abstract

The invention relates to a welding strip clamping mechanism and a series welding machine, the welding strip clamping mechanism comprises a clamping assembly and a moving assembly, and the clamping assembly comprises a supporting component and a plurality of pressing components; the moving assembly comprises a plurality of elastic components and a pressing component; the multiple elastic components are correspondingly arranged between the multiple pressing components and the abutting component, and the elastic components are used for providing initial preset pressure for the corresponding pressing components; the abutting component is used for driving the multiple pressing components to move between the first position and the second position. When the pressing components are located at the first positions, the pressing components abut against the supporting component, the abutting component abuts against the elastic components, so that the elastic components apply second preset pressure to the corresponding pressing components, and the pressing components can press the welding strip on the supporting component; and when the pressing components are located at the second positions, the abutting component loosens the elastic components so that the elastic components can apply initial preset pressure to the pressing components, and the pressing components are away from the supporting component and keep a preset distance.

Description

Technical Field

[0001] The present application relates to the technical field of battery production, and in particular to a welding ribbon clamping mechanism and a string welding machine. Background Art

[0002] Solar cells, also known as photovoltaic cells, are semiconductor devices that convert sunlight directly into electrical energy. As they are green and environmentally friendly products that do not cause environmental pollution, and solar energy is a renewable resource, solar cells are a new type of battery with broad development prospects.

[0003] A photovoltaic stringer is a tool that uses a solder ribbon to connect solar cells into strings. Generally, a stringer needs to include a solder ribbon clamping device to press the solder ribbon tightly for easy welding.

[0004] In the related art, when the soldering ribbon clamping device clamps the soldering ribbon, it is easy to cause the soldering ribbon to deform, which affects the alignment accuracy between the soldering ribbon and the main grid on the battery cell and reduces the welding yield. Summary of the invention

[0005] Based on this, the present application provides a soldering ribbon clamping mechanism and a string soldering machine, which can facilitate the clamping and release of multiple soldering ribbons while reducing the deformation of the soldering ribbons, which is beneficial to improving welding efficiency and yield.

[0006] An embodiment of the first aspect of the present application provides a welding ribbon clamping mechanism, comprising:

[0007] The clamping assembly comprises a supporting member and a plurality of pressing members arranged side by side on one side of the supporting member; the pressing members are used to press the welding strip onto the supporting member;

[0008] The moving assembly comprises a plurality of elastic members and a pressing member; the plurality of elastic members are arranged one by one between the plurality of pressing members and the pressing member, and the elastic members are used to provide an initial preset pressure to the corresponding pressing member;

[0009] The pressing member is connected to the plurality of pressing members; the pressing member is used to drive the plurality of pressing members to move between the first position and the second position;

[0010] When each of the pressing members is in the first position, each of the pressing members abuts against the supporting member, and the abutting members abut against each of the elastic members, so that each of the elastic members applies a second preset pressure to the corresponding pressing member, so that each of the pressing members can press the corresponding welding ribbon onto the supporting member, and the second preset pressure is greater than the initial preset pressure;

[0011] When each of the pressing members is in the second position, the pressing member releases each of the elastic members so that each of the elastic members applies an initial preset pressure to the corresponding pressing member, and each of the pressing members is away from the supporting member and maintains a preset distance.

[0012] In one embodiment, the pressing member includes a plurality of connecting rods, a pressing plate and a driving member;

[0013] The pressing plate is arranged on a side of the plurality of pressing members away from the supporting member; the plurality of elastic members are arranged one by one between the plurality of pressing members and the pressing plate;

[0014] The plurality of connecting rods are movably arranged on the pressure plate; one end of each of the connecting rods is connected to a pressing member, and the other end of each of the connecting rods is provided with a limiting portion, and the limiting portion is located on a side of the pressure plate away from the supporting member, so as to limit the pressure plate between the limiting portion and the elastic member;

[0015] The driving member is connected to the pressure plate, and is used to drive the pressure plate to approach or move away from the supporting member, so as to drive the multiple clamping members to move between the first position and the second position, and to make the pressure plate press or release the multiple elastic members along the connecting rod.

[0016] In one embodiment, the welding strip clamping mechanism further includes a fixing seat and a plurality of positioning members; the fixing seat is arranged on a side of the pressing plate away from the supporting member;

[0017] The multiple positioning members correspond to the multiple clamping members one by one; each of the positioning members is movably inserted into the pressure plate and the corresponding clamping member; one end of each of the positioning members away from the supporting member is connected to the fixed seat; each of the elastic members is sleeved on the outside of the positioning member, one end of each of the elastic members is in contact with the pressure plate, and the other end is in contact with the clamping member.

[0018] In one embodiment, each of the positioning members includes a connecting block and two positioning rods connected to the connecting block; the connecting block is connected to the fixing seat; the two positioning rods are distributed on both sides of the connecting rod, and the two positioning rods are movably arranged in the pressing plate and the same pressing member;

[0019] The elastic component includes two elastic members corresponding to the two positioning rods. Each of the elastic members is sleeved on the outside of one of the positioning rods. One end of each of the elastic members abuts against the pressing plate, and the other end abuts against the clamping member.

[0020] In one embodiment, the welding strip clamping mechanism also includes a first adjusting member, which is sleeved on the positioning rod, one end of the first adjusting member abuts against the pressure plate, and the other end of the first adjusting member abuts against the elastic member, and the first adjusting member is used to adjust the initial preset pressure applied by the elastic member to the clamping member.

[0021] In one embodiment, a first slide groove is provided on the fixed seat, and a second slide groove for the positioning member to pass through and a third slide groove for the connecting rod to pass through are provided on the pressure plate, and the first slide groove, the second slide groove and the third slide groove all extend along the arrangement direction of the multiple clamping members; one end of each positioning member away from the supporting member is connected to the fixed seat through a first fastener, and the first fastener passes through the first slide groove from the side of the fixed seat away from the supporting member and is connected to the positioning member.

[0022] In one embodiment, the driving member includes a driving member, a push plate and a plurality of transmission rods, wherein the push plate is disposed on a side of the fixed seat away from the supporting member; the plurality of transmission rods are movably passed through the fixed seat, one end of the plurality of transmission rods are detachably connected to the pressure plate, and the other end of the plurality of transmission rods are detachably connected to the push plate; the driving member is connected to the push plate, and the driving member is used to drive the push plate to approach or move away from the fixed seat.

[0023] In one of the embodiments, a second adjusting member is further included, and the second adjusting member is disposed on the push plate. The distance between the push plate and one end of the second adjusting member close to the fixed seat is adjustable, so that the travel of the push plate moving toward the fixed seat is adjustable.

[0024] In one embodiment, the second adjusting member includes an adjusting rod and a second fastener, the adjusting rod is movably disposed through the push plate, and the adjusting rod is fixed to the push plate by the second fastener.

[0025] In one embodiment, the welding strip clamping mechanism further includes a sensor component, and the sensor component is used to monitor whether the multiple clamping members are in the first position or the second position; the driving member is electrically connected to the sensor component and starts and stops according to the signal of the sensor component.

[0026] In one embodiment, the welding ribbon clamping mechanism further includes a mounting frame, and the driving member, the fixing seat and the supporting member are all detachably connected to one side of the mounting frame;

[0027] The sensing assembly includes a plurality of proximity sensors, which are arranged close to the supporting member and spaced apart on the mounting frame; the plurality of proximity sensors correspond one to one with the plurality of clamping members, and each of the proximity sensors is used to monitor whether a clamping member is in the first position or the second position; the driving member is electrically connected to the plurality of proximity sensors, and starts and stops according to the signals of the plurality of proximity sensors.

[0028] In one embodiment, the connecting rod is connected to the clamping member through a third fastener, the clamping member is provided with a through hole for the third fastener to pass through, the connecting rod is provided with a mounting hole that cooperates with the third fastener, and the third fastener passes through the through hole from a side of the clamping member close to the supporting member and is connected to the mounting hole of the connecting rod.

[0029] In one of the embodiments, an avoidance groove is formed on the supporting member, and the avoidance groove extends along the arrangement direction of the plurality of pressing members, and the avoidance groove is used to avoid the third fastener.

[0030] In one embodiment, the pressing member includes a pressing portion and a first connecting portion connected to each other, the elastic member is arranged between the first connecting portion and the pressing member, and the pressing member is connected to the first connecting portion; the pressing portion is used to press the welding strip onto the supporting member.

[0031] In one embodiment, a first distance exists between the side of the pressing portion close to the supporting member and the supporting member, a second distance exists between the side of the first connecting portion close to the supporting member and the supporting member, and the first distance is smaller than the second distance.

[0032] An embodiment of the second aspect of the present application provides a string welding machine, comprising the welding ribbon clamping mechanism described in any one of the above embodiments.

[0033] The above-mentioned welding strip clamping mechanism, its clamping assembly includes a supporting member and a plurality of clamping members arranged side by side on one side of the supporting member; the clamping member is used to clamp the welding strip onto the supporting member; its moving assembly includes a plurality of elastic members and a pressing member; the plurality of elastic members are arranged one by one between the plurality of clamping members and the pressing members, and the elastic members are used to provide an initial preset pressure to the corresponding clamping members; the pressing member is connected to the plurality of clamping members; the pressing member is used to drive the plurality of clamping members to move between a first position and a second position. In this way, when it is necessary to compress the welding strip, the pressing member drives multiple pressing members to move to the first position, and each pressing member is abutted against the supporting member. The pressing member presses each elastic member so that each elastic member applies a second preset pressure to the corresponding pressing member, so that each pressing member presses the corresponding welding strip onto the supporting member, and the second preset pressure is greater than the initial preset pressure. That is to say, the pressing member presses each elastic member so that the pressure applied by each elastic member to the corresponding pressing member gradually increases from the initial preset pressure to the second preset pressure. In this way, the synchronous clamping of multiple welding strips can be achieved, and the clamping force applied by the pressing member to the welding strip can be gradually increased, thereby greatly reducing the impact force of the pressing member on the welding strip and reducing the deformation of the welding strip. Moreover, due to the buffering effect of the elastic member, even if there are differences in the sizes of multiple welding strips, the reliable clamping of multiple welding strips can still be guaranteed, and the deformation of the welding strip can be reduced, which is beneficial to improve the alignment accuracy of the welding strip and the main grid on the battery cell, and improve the welding yield. When the welding strip needs to be released, the pressing member drives the multiple clamping members to move to the second position, and the pressing member releases each elastic member so that each elastic member applies an initial preset pressure to the corresponding clamping member, and each clamping member is away from the supporting member and maintains a preset distance, thereby achieving the synchronous release of multiple welding strips, which is beneficial to improving welding efficiency. In summary, the present application can reduce the deformation of the welding strips while achieving the clamping and release of multiple welding strips, which is beneficial to improving welding efficiency and yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the structure of a solder strip clamping mechanism provided in one embodiment of the present application.

[0035] Figure 2 This is a front view structural schematic diagram of a solder strip clamping mechanism provided in one embodiment of the present application.

[0036] Figure 3 It is a schematic diagram of the side structure of the welding ribbon clamping mechanism provided in one embodiment of the present application.

[0037] Figure 4 This is a schematic structural diagram of a clamping member in a welding ribbon clamping mechanism provided in one embodiment of the present application when the clamping member is in a first position.

[0038] Figure 5This is a schematic structural diagram of a clamping member in a welding ribbon clamping mechanism provided in one embodiment of the present application when the clamping member is in the second position.

[0039] Figure 6 This is a schematic diagram of the bottom view of the solder strip clamping mechanism provided in one embodiment of the present application.

[0040] Description of reference numerals:

[0041] 10. Welding strip clamping mechanism; 20. Welding strip; 110. Clamping assembly; 111. Support member; 1111. Support part; 1112. Second connecting part; 112. Pressing member; 1121. Pressing part; 1122. First connecting part; 120. Moving assembly; 121. Elastic member; 1211. Elastic member; 122. Pressing member; 1221. Connecting rod; 1222. Pressing plate; 1222a. Second slide groove; 1222b. Third slide groove; 1223. Driving member; 12 23a, driving member; 1223b, push plate; 1223c, transmission rod; 1224, limiting portion; 130, fixing seat; 131, first slide groove; 140, positioning member; 141, connecting block; 142, positioning rod; 150, first adjusting member; 160, first fastening member; 170, second adjusting member; 171, adjusting rod; 172, second fastening member; 180, sensing component; 181, proximity sensor; 190, mounting bracket; 200, third fastening member; 201, avoidance groove. DETAILED DESCRIPTION

[0042] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0043] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0044] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0045] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0046] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0047] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0048] Solar cells, also known as photovoltaic cells, are semiconductor devices that convert sunlight directly into electrical energy. As they are green and environmentally friendly products that do not cause environmental pollution, and solar energy is a renewable resource, solar cells are a new type of battery with broad development prospects.

[0049] A photovoltaic stringer is a tool that uses a solder ribbon to connect solar cells into strings. Generally, a stringer needs to include a solder ribbon clamping device to press the solder ribbon tightly for easy welding.

[0050] In the related art, when the soldering ribbon clamping device clamps the soldering ribbon, it is easy to cause the soldering ribbon to deform, which affects the alignment accuracy between the soldering ribbon and the main grid on the battery cell and reduces the welding yield.

[0051] Based on the above technical problems, the present application provides a soldering ribbon clamping mechanism and a string soldering machine, which can facilitate the clamping and release of multiple soldering ribbons while reducing the deformation of the soldering ribbons, thereby helping to improve welding efficiency and yield.

[0052] First, see Figure 1 , Figure 2 , Figure 4 and Figure 5 The embodiment of the present application provides a solder strip clamping mechanism 10, including a clamping assembly 110 and a moving assembly 120. The clamping assembly 110 includes a supporting member 111 and a plurality of pressing members 112 arranged side by side on one side of the supporting member 111; the pressing member 112 is used to press the solder strip 20 onto the supporting member 111; the moving assembly 120 includes a plurality of elastic members 121 and a pressing member 122; the plurality of elastic members 121 are arranged one by one between the plurality of pressing members 112 and the pressing member 122, the elastic member 121 is used to provide an initial preset pressure to the corresponding pressing member 112; the pressing member 122 is connected to the plurality of pressing members 112; the pressing member 122 is used to drive the plurality of pressing members 112 Move between a first position and a second position; when each clamping member 112 is in the first position, each clamping member 112 is in contact with the supporting member 111, and the pressing member 122 presses each elastic member 121, so that each elastic member 121 applies a second preset pressure to the corresponding clamping member 112, so that each clamping member 112 can press the corresponding welding strip 20 onto the supporting member 111, and the second preset pressure is greater than the initial preset pressure; when each clamping member 112 is in the second position, the pressing member 122 releases each elastic member 121, so that each elastic member 121 applies an initial preset pressure to the corresponding clamping member 112, and each clamping member 112 is away from the supporting member 111 and maintains a preset distance.

[0053] According to the solder strip clamping mechanism 10 provided in the embodiment of the present application, its clamping assembly 110 includes a supporting member 111 and a plurality of clamping members 112 arranged side by side on one side of the supporting member 111; the clamping member 112 is used to clamp the solder strip 20 onto the supporting member 111; its moving assembly 120 includes a plurality of elastic members 121 and a pressing member 122; the plurality of elastic members 121 are arranged one by one between the plurality of clamping members 112 and the pressing member 122, and the elastic member 121 is used to provide an initial preset pressure to the corresponding clamping member 112; the pressing member 122 is connected to the plurality of clamping members 112; the pressing member 122 is used to drive the plurality of clamping members 112 to move between the first position and the second position. In this way, when it is necessary to compress the welding ribbon 20, the pressing member 122 drives the plurality of pressing members 112 to move to the first position, each pressing member 112 is in contact with the supporting member 111, and the pressing member 122 presses each elastic member 121, so that each elastic member 121 applies a second preset pressure to the corresponding pressing member 112, so that each pressing member 112 presses the corresponding welding ribbon 20 onto the supporting member 111, and the second preset pressure is greater than the initial preset pressure, that is, the pressing member 122 presses each elastic member 121, so that each elastic member 121 applies a second preset pressure to the corresponding pressing member 112. The pressure of the component 112 gradually increases from an initial preset pressure to a second preset pressure, so that the synchronous clamping of multiple welding strips 20 can be achieved, and the clamping force applied by the clamping component 112 to the welding strip 20 can be gradually increased, thereby greatly reducing the impact force of the clamping component 112 on the welding strip 20 and reducing the deformation of the welding strip 20. Moreover, due to the buffering effect of the elastic component 121, even if there are differences in the sizes of multiple welding strips 20, the reliable clamping of multiple welding strips 20 can still be guaranteed, and the deformation of the welding strip 20 is reduced, which is beneficial to improve the alignment accuracy of the welding strip 20 and the main grid on the battery cell, thereby improving the welding yield. When the welding strip 20 needs to be released, the pressing member 122 drives the multiple pressing members 112 to move to the second position, and the pressing member 122 releases each elastic member 121, so that each elastic member 121 applies an initial preset pressure to the corresponding pressing member 112, and each pressing member 112 is away from the supporting member 111 and maintains a preset distance, so that the multiple welding strips 20 can be released synchronously, which is beneficial to improving the welding efficiency. In summary, the present application can reduce the deformation of the welding strip 20 while achieving the clamping and release of multiple welding strips 20, which is beneficial to improving the welding efficiency and yield.

[0054] It is understandable that “a plurality of elastic members 121 are disposed between a plurality of pressing members 112 and abutting members 122 in one-to-one correspondence” means that a plurality of elastic members 121 correspond to a plurality of pressing members 112 in one-to-one correspondence, and one elastic member 121 is disposed between one pressing member 112 and onebutting member 122. The initial preset pressure is ≥ 0. When the initial preset pressure is > 0, that is, the elastic member 121 is initially in a compressed state, so that thebutting member 122 can facilitate the pressing member 112 and the elastic member 121 to move together.

[0055] See also Figure 2 and Figure 4 In one embodiment, the pressing member 122 includes a plurality of connecting rods 1221, a pressing plate 1222 and a driving member 1223; the pressing plate 1222 is arranged on a side of the plurality of clamping members 112 away from the supporting member 111; a plurality of elastic members 121 are arranged one by one between the plurality of clamping members 112 and the pressing plate 1222; a plurality of connecting rods 1221 are movably arranged on the pressing plate 1222; one end of each connecting rod 1221 is connected to a clamping member 112, and the other end of each connecting rod 1221 is provided with There is a limiting portion 1224, which is located on the side of the pressure plate 1222 away from the supporting member 111 to limit the pressure plate 1222 between the limiting portion 1224 and the elastic member 121; the driving member 1223 is connected to the pressure plate 1222, and the driving member 1223 is used to drive the pressure plate 1222 to approach or move away from the supporting member 111, so as to drive the multiple clamping members 112 to move between the first position and the second position, and make the pressure plate press or release the multiple elastic members 121 along the connecting rod 1221.

[0056] In this way, when it is necessary to clamp the welding strip 20, the driving member 1223 drives the pressure plate 1222 to approach the supporting member 111, and the pressure plate 1222 drives the multiple clamping members 112 to move from the second position to the first position, and each clamping member 112 abuts against the corresponding welding strip 20. The pressure plate 1222 moves along the connecting rod 1221 and presses against multiple elastic members 121. Each elastic member 121 is compressed synchronously, so that the pressure applied by each elastic member 121 to the corresponding clamping member 112 gradually increases from the initial preset pressure to the second preset pressure, so that each clamping member 112 presses the corresponding welding strip 20 onto the supporting member 111, thereby realizing the synchronous clamping of multiple welding strips 20 and reducing the deformation of the welding strip 20. When it is necessary to release the welding strip 20, the driving member 1223 drives the pressing plate 1222 away from the supporting member 111, and the pressing plate 1222 moves along the connecting rod 1221 and gradually loosens the multiple elastic members 121. The pressure applied by the multiple elastic members 121 to the corresponding clamping members 112 is restored from the second preset pressure to the initial preset pressure, and the side of the pressing plate 1222 away from the supporting member 111 abuts against the multiple limiting parts 1224, driving the multiple connecting rods 1221 and the multiple clamping members 112 corresponding to the multiple connecting rods 1221 to synchronously move away from the supporting member 111, and making the multiple clamping members 112 maintain a preset distance from the support member 111, that is, making the multiple clamping members 112 move from the first position to the second position, so as to realize the release of multiple welding strips 20. In summary, by setting up multiple connecting rods 1221, pressure plates 1222 and driving components 1223, the pressure components 122 can conveniently drive the multiple clamping components 112 to move between the first position and the second position, and make the pressure components 122 press or release the multiple elastic components 121. At the same time, the stability of the movement of each clamping component 112 in the first position and the second position can be improved, so that each clamping component 112 can stably press the corresponding welding strip 20 onto the support member 111.

[0057] See also Figure 3 and Figure 5 In one embodiment, the welding ribbon clamping mechanism 10 further includes a fixing seat 130 and a plurality of positioning members 140; the fixing seat 130 is arranged on the side of the pressing plate 1222 away from the supporting member 111; the plurality of positioning members 140 correspond one by one to the plurality of clamping members 112; each positioning member 140 is movably arranged in the pressing plate 1222 and the corresponding clamping member 112; one end of each positioning member 140 away from the supporting member 111 is connected to the fixing seat 130; each elastic member 121 is sleeved on the outside of the positioning member 140, one end of each elastic member 121 is in contact with the pressing plate 1222, and the other end is in contact with the clamping member 112.

[0058] In this way, when each clamping member 112 moves between the first position and the second position, each positioning member 140 can limit the corresponding clamping member 112 and the elastic member 121, thereby preventing the clamping member 112 from shifting during the movement, so that the elastic member 121 is compressed or loosened along the positioning member 140, thereby ensuring that each clamping member 112 accurately presses the corresponding welding strip 20 onto the supporting member 111, thereby improving the alignment accuracy of the welding strip 20 and the main grid on the battery cell, and improving the welding yield.

[0059] See also Figure 5 In one embodiment, each positioning member 140 includes a connecting block 141 and two positioning rods 142 connected to the connecting block 141; the connecting block 141 is connected to the fixing seat 130; the two positioning rods 142 are distributed on both sides of the connecting rod 1221, and the two positioning rods 142 are movably inserted into the pressure plate 1222 and the same clamping member 112; the elastic member 121 includes two elastic members 1211 corresponding to the two positioning rods 142, each elastic member 1211 is sleeved on the outside of a positioning rod 142, one end of each elastic member 1211 is abutted against the pressure plate 1222, and the other end is abutted against the clamping member 112.

[0060] In this way, the connection between the positioning member 140 and the fixing seat 130 can be facilitated through the connecting block 141; by making the two connecting rods 1221 connected to the connecting block 141 distributed on both sides of the connecting rod 1221, the two positioning rods 142 are movably inserted into the pressure plate 1222 and the same clamping member 112, so that the two elastic parts 1211 of the elastic member 121 are correspondingly sleeved on the outside of the two positioning rods 142, so that the force of each clamping member 112 can be balanced, and the tilting of each clamping member 112 due to uneven force can be avoided, thereby ensuring the stability of each clamping member 112 moving between the first position and the second position, so that each clamping member 112 can stably press the corresponding welding strip 20 onto the supporting member 111, thereby improving the alignment accuracy of the welding strip 20 and the main grid on the battery cell, and improving the welding yield.

[0061] In a specific example, the connection block 141 and the two positioning rods 142 may be integrally arranged or separately arranged. When they are separately arranged, the connection block 141 and the positioning rods 142 may be connected by a fastening component (such as a bolt).

[0062] In a specific example, the elastic member 1211 may be an elastic member such as a spring or a disc spring.

[0063] As such, the elastic member 1211 is widely available and has a low cost, thereby reducing the manufacturing cost of the solder strip clamping mechanism 10 .

[0064] See also Figure 5In one embodiment, the welding strip clamping mechanism 10 also includes a first adjusting member 150, which is sleeved on the positioning rod 142, one end of the first adjusting member 150 abuts against the pressing plate 1222, and the other end of the first adjusting member 150 abuts against the elastic member 1211, and the first adjusting member 150 is used to adjust the initial preset pressure applied by the elastic member 1211 to the clamping member 112.

[0065] In this way, the initial preset pressure applied by each elastic member 1211 to the pressing member 112 can be conveniently adjusted, so that the initial pressing force applied by the pressing member 112 to the solder strip 20 can be adjusted, so that the solder strip clamping mechanism 10 is suitable for clamping solder strips 20 of different diameters and types. In addition, by adjusting the initial preset pressure applied by the elastic member 1211 to the pressing member 112 through the first adjusting member 150, the error caused by manual operation is reduced, and the foolproof performance of the solder strip clamping mechanism 10 is improved.

[0066] In a specific example, the first adjustment member 150 includes at least one adjustment washer.

[0067] In this way, the pressure applied by the elastic member 1211 to the pressing member 112 can be conveniently adjusted by increasing or decreasing the number of adjustment washers and adjusting the thickness of the washers, thereby conveniently adjusting the initial preset pressure applied by the elastic member 121 to the pressing member 112, so that the solder strip clamping mechanism 10 is suitable for clamping solder strips 20 of different diameters and types. In addition, the sources of the adjustment washers are wide and the cost is low, which can reduce the manufacturing cost of the solder strip clamping mechanism 10.

[0068] See also Figure 4 and Figure 5 In one embodiment, a first slide groove 131 is provided on the fixing seat 130, and a second slide groove 1222a for the positioning member 140 to pass through and a third slide groove 1222b for the connecting rod 1221 to pass through are provided on the pressing plate 1222. The first slide groove 131, the second slide groove 1222a and the third slide groove 1222b all extend along the arrangement direction of the plurality of clamping members 112; one end of each positioning member 140 away from the supporting member 111 is connected to the fixing seat 130 through a first fastener 160, and the first fastener 160 passes through the first slide groove 131 from a side of the fixing seat 130 away from the supporting member 111 and is connected to the positioning member 140.

[0069] In this way, when the spacing between the clamping members 112 needs to be adjusted, loosen the first fastener 160, so that the positioning member 140 moves along the first slide groove 131 and the second slide groove 1222a, and the connecting rod 1221 moves along the third slide groove 1222b, driving the corresponding clamping member 112 to move. After adjusting into place, lock the first fastener 160. That is to say, by opening a first slide groove 131 on the fixed seat 130 and opening a second slide groove 1222a and a third slide groove 1222b on the pressure plate 1222, the first slide groove 131, the second slide groove 1222a and the third slide groove 1222b all extend along the arrangement direction of the multiple clamping members 112, and the end of each positioning member 140 away from the supporting member 111 is connected to the fixed seat 130 through the first fastener 160, which can conveniently adjust the spacing between the clamping members 112 according to the spacing of the grid lines, so that the soldering strip clamping mechanism 10 is suitable for clamping the soldering strips 20 of solar cells with different numbers of grid lines, and can ensure that the clamping force applied to the soldering strip 20 does not change with the number of grid lines and the spacing between the grid lines.

[0070] It can be understood that the arrangement direction of the plurality of pressing members 112 refers to the direction in which the plurality of pressing members 112 are arranged side by side.

[0071] In a specific example, the first fastener 160 includes a bolt, and a screw hole that cooperates with the bolt may be provided on the positioning member 140 . Specifically, the first fastener 160 may include a plurality of bolts, and a plurality of screw holes are spaced apart on the connecting block 141 .

[0072] In this way, the connection reliability between the positioning member 140 and the fixing seat 130 can be improved.

[0073] See also Figure 2 In one embodiment, the driving member 1223 includes a driving member 1223a, a push plate 1223b and a plurality of transmission rods 1223c, the push plate 1223b is arranged on the side of the fixed seat 130 away from the supporting member 111; the plurality of transmission rods 1223c are movably passed through the fixed seat 130, one end of the plurality of transmission rods 1223c are detachably connected to the pressure plate 1222, and the other end of the plurality of transmission rods 1223c are detachably connected to the push plate 1223b; the driving member 1223a is connected to the push plate 1223b, and the driving member 1223a is used to drive the push plate 1223b to approach or move away from the fixed seat 130.

[0074] Thus, when the soldering ribbon 20 needs to be clamped or released, the driving member 1223a drives the push plate 1223b to approach or move away from the fixing seat 130, and the push plate 1223b drives the pressing plate 1222 to approach or move away from the supporting member 111 through the plurality of transmission rods 1223c, thereby driving the plurality of pressing members 112 to move between the first position and the second position, thereby conveniently clamping or releasing the soldering ribbon 20. In addition, the entire driving member 1223 has a simple structure and low installation difficulty, which can reduce installation errors and improve the foolproof performance of the soldering ribbon 20 clamping member. In addition, the various components of the driving member 1223 are widely available and have low manufacturing requirements, thereby greatly reducing the manufacturing cost of the soldering ribbon clamping mechanism 10.

[0075] In a specific example, the driving member 1223a may be a linear driving member, such as a cylinder, an electric cylinder, etc.

[0076] In this way, the source of the driving member 1223 a can be wide and the cost can be low, thereby reducing the cost of the welding ribbon clamping mechanism 10 .

[0077] See also Figure 2 In one embodiment, it also includes a second adjusting member 170, which is disposed on the push plate 1223b. The distance between the end of the second adjusting member 170 close to the fixed seat 130 and the push plate 1223b is adjustable so that the stroke of the push plate 1223b moving toward the fixed seat 130 is adjustable.

[0078] In this way, when the driving member 1223a drives the push plate 1223b to approach the fixed seat 130, the end of the second adjusting member 170 close to the fixed seat 130 abuts against the fixed seat 130, so that the push plate 1223b stops moving. By making the distance between the end of the second adjusting member 170 close to the fixed seat 130 and the push plate 1223b adjustable, the movement stroke of the push plate 1223b in the direction of approaching the fixed seat 130 can be adjusted. In this way, the pressure applied to the pressing plate 1222 can be conveniently adjusted, and the compression amount of the elastic member 1211 can be adjusted, so that the pressure applied to the clamping member 112 by each elastic member 121 can be conveniently adjusted, that is, the second preset pressure can be adjusted, so that the welding strip clamping mechanism 10 is suitable for clamping welding strips 20 of different specifications and types, thereby reducing the deformation of the welding strip 20.

[0079] See also Figure 2 In one embodiment, the second adjusting member 170 includes an adjusting rod 171 and a second fastener 172 , the adjusting rod 171 is movably disposed in the push plate 1223 b , and the adjusting rod 171 is fixed to the push plate 1223 b through the second fastener 172 .

[0080] In this way, when it is necessary to adjust the distance between the end of the second adjusting member 170 close to the fixed seat 130 and the push plate 1223b, loosen the second fastener 172, drive the adjusting rod 171 to move relative to the push plate 1223b, so that the end of the adjusting rod 171 close to the fixed seat 130 protrudes from the side of the push plate 1223b close to the fixed seat 130, and adjust the distance between the end of the adjusting rod 171 close to the fixed seat 130 and the push plate 1223b as needed. After adjusting to the right position, lock the adjusting rod 171 on the push plate 1223b through the second fastener 172. The entire adjustment process is simple and easy, which is beneficial to improving the anti-foolproof performance of the welding strip clamping mechanism 10.

[0081] See also Figure 2 In a specific example, the second adjustment member 170 includes two adjustment rods 171 and two second fasteners 172 . The two adjustment rods 171 are symmetrically distributed and movably penetrate the push plate 1223 b . Each adjustment rod 171 is fixed to the push plate 1223 b by a second fastener 172 .

[0082] In this way, when the driving member 1223a drives the push plate 1223b to approach the fixed seat 130, the ends of the two adjusting rods 171 close to the fixed seat 130 are both in contact with the fixed seat 130, which can improve the uniformity of the force applied to various parts of the push plate 1223b and improve the consistency of the distance between various parts of the push plate 1223b and the fixed seat 130, thereby helping to improve the consistency of the compression amount of each elastic component 121, and further helping to improve the consistency of the clamping force applied by each clamping component 112 to the corresponding welding strip 20.

[0083] In a specific example, the adjustment rod 171 may be a rod with threads, such as a bolt or a screw; the second fastener 172 may be a nut; and a threaded hole that cooperates with the adjustment rod 171 is formed on the push plate 1223 b.

[0084] In this way, the components of the second adjusting member 170 can be sourced from a wide range of sources and at a low cost, thereby reducing the cost of the welding ribbon clamping mechanism 10 .

[0085] See also Figure 3 , Figure 4 and Figure 6 In one embodiment, the welding strip clamping mechanism 10 further includes a sensor component 180, which is used to monitor whether the plurality of clamping members 112 are in the first position or the second position; the driving member 1223a is electrically connected to the sensor component 180, and is started and stopped according to the signal of the sensor component 180.

[0086] Thus, by providing the sensor assembly 180 and connecting the sensor assembly 180 to the driving member 1223a, the start and stop of the driving member 1223a can be conveniently controlled, and the accuracy of the movement of the plurality of clamping members 112 can be improved, thereby improving the reliability of the welding ribbon clamping mechanism 10.

[0087] See also Figures 1 to 4 , Figure 6 In one embodiment, the welding strip clamping mechanism 10 also includes a mounting frame 190, and the driving member 1223a, the fixing seat 130 and the supporting member 111 are all detachably connected to one side of the mounting frame 190; the sensing assembly 180 includes a plurality of proximity sensors 181, and the plurality of proximity sensors 181 are arranged close to the supporting member 111 and are spaced apart on the mounting frame 190; the plurality of proximity sensors 181 correspond one-to-one to the plurality of clamping members 112, and each proximity sensor 181 is used to monitor whether a clamping member 112 is in the first position or the second position; the driving member 1223a is electrically connected to the plurality of proximity sensors 181, and is started and stopped according to the signals of the plurality of proximity sensors 181.

[0088] Thus, by providing the mounting frame 190, the installation and fixation of the clamping assembly 110 and the pressing assembly can be facilitated, and the clamping assembly 110 and the pressing assembly can be driven to move synchronously by driving the mounting frame 190 to achieve the stretching of the solder strip 20. By making the sensing assembly 180 include a plurality of proximity sensors 181, the driving member 1223a is electrically connected to the plurality of proximity sensors 181, and is started and stopped according to the signals of the plurality of proximity sensors 181, thus, the positions of the plurality of clamping members 112 can be conveniently monitored, and the start and stop of the driving member 1223a can be controlled, thereby improving the accuracy of the movement of the plurality of clamping members 112 and improving the reliability of the solder strip clamping mechanism 10.

[0089] See also Figure 5 In one embodiment, the connecting rod 1221 is connected to the clamping member 112 through the third fastener 200, the clamping member 112 is provided with a through hole for the third fastener 200 to pass through, and the connecting rod 1221 is provided with a mounting hole that cooperates with the third fastener 200. The third fastener 200 passes through the through hole from the side of the clamping member 112 close to the supporting member 111 and is connected to the mounting hole of the connecting rod 1221.

[0090] In this way, the pressing member 112 and the elastic member 121 can be easily disassembled, assembled and replaced, and the maintenance of the welding ribbon clamping mechanism 10 can be facilitated.

[0091] In a specific example, the third fastener 200 includes a fastening component such as a bolt.

[0092] See also Figure 6 In one embodiment, a avoidance groove 201 is provided on the support member 111 , and the avoidance groove 201 extends along the arrangement direction of the plurality of pressing members 112 , and the avoidance groove 201 is used to avoid the third fastener 200 .

[0093] In this way, the third fastener 200 can be prevented from interfering with the supporting member 111 , ensuring that each pressing member 112 presses the corresponding soldering ribbon 20 onto the supporting member 111 , thereby improving the reliability of the soldering ribbon clamping mechanism 10 .

[0094] See also Figure 4 In one embodiment, the pressing member 112 includes a pressing portion 1121 and a first connecting portion 1122 that are connected to each other, the elastic member 121 is disposed between the first connecting portion 1122 and the pressing member 122, and the pressing member 122 is connected to the first connecting portion 1122; the pressing portion 1121 is used to press the welding strip 20 onto the supporting member 111.

[0095] In this way, by providing the pressing portion 1121 and the first connecting portion 1122, the first connecting portion 1122 is connected to the elastic member 121 and the pressing portion 122, and the pressing portion 1121 is used to press the welding strip 20 onto the supporting member 111, that is, the pressing portion 1121 and the first connecting portion 1122 of the clamping member 112 are separated, so that the connection between the clamping member 112 and the elastic member 121 and the pressing member 122 can be facilitated, and at the same time, the pressing member 112 can press the welding strip 20 onto the supporting member 111, which is beneficial to improve the reliability of the welding strip clamping mechanism 10.

[0096] See also Figure 4 and Figure 5 In one embodiment, there is a first distance between the pressing portion 1121 and the supporting member 111 on one side thereof, and there is a second distance between the first connecting portion 1122 and the supporting member 111 on one side thereof, and the first distance is smaller than the second distance.

[0097] In this way, when the clamping member 112 presses the solder strip 20 onto the supporting member 111, the pressing portion 1121 abuts against the solder strip 20 on the side close to the supporting member 111 and presses the solder strip 20 onto the supporting member 111, and the first connecting portion 1122 maintains a certain distance from the supporting member 111. In this way, on the one hand, the clamping length of the solder strip 20 can be shortened and the utilization rate of the solder strip 20 can be improved; on the other hand, the cooperation between the first connecting portion 1122, the elastic member 121 and the pressing member 122 can be avoided to affect the clamping of the solder strip 20, thereby improving the reliability of the clamping of the solder strip 20.

[0098] See also Figure 4 In one embodiment, the supporting member 111 includes a supporting portion 1111 and a second connecting portion 1112 , the supporting portion 1111 is used to carry the welding ribbon 20 , and the second connecting portion 1112 is connected to one side of the supporting portion 1111 .

[0099] In this way, by providing the supporting portion 1111 and the second connecting portion 1112 , the supporting member 111 can be conveniently connected to other components (mounting frame 190 ), and at the same time, the supporting member 111 and the pressing member 112 can be conveniently cooperated to clamp the welding ribbon 20 .

[0100] See also Figure 4 In a specific example, the second connection portion 1112 is vertically distributed with the support portion 1111 and connected to one side of the support portion 1111. Specifically, the support portion 1111 and the second connection portion 1112 may be integrally designed or separately designed; the support portion 1111 and the second connection portion 1112 may both be plate-shaped structures.

[0101] In a second aspect, an embodiment of the present application provides a string welding machine, comprising the welding ribbon clamping mechanism 10 described in any of the above embodiments. In this way, the welding efficiency and yield of the string welding machine can be improved.

[0102] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0103] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A welding strip clamping mechanism, characterized in that: include: A clamping assembly, comprising a supporting member and a plurality of pressing members arranged side by side on one side of the supporting member; The pressing member is used to press the welding strip onto the supporting member; The moving assembly comprises a plurality of elastic members and a pressing member; the plurality of elastic members are arranged one by one between the plurality of pressing members and the pressing member, and the elastic members are used to provide an initial preset pressure to the corresponding pressing member; The pressing member is connected to the plurality of pressing members; the pressing member is used to drive the plurality of pressing members to move between the first position and the second position; When each of the pressing members is in the first position, each of the pressing members abuts against the supporting member, and the abutting members abut against each of the elastic members, so that each of the elastic members applies a second preset pressure to the corresponding pressing member, so that each of the pressing members can press the corresponding welding ribbon onto the supporting member, and the second preset pressure is greater than the initial preset pressure; When each of the pressing members is in the second position, the pressing member releases each of the elastic members so that each of the elastic members applies an initial preset pressure to the corresponding pressing member, and each of the pressing members is away from the supporting member and maintains a preset distance.

2. The solder strip clamping mechanism according to claim 1, characterized in that: The pressing member includes a plurality of connecting rods, a pressing plate and a driving member; The pressing plate is arranged on a side of the plurality of pressing members away from the supporting member; the plurality of elastic members are arranged one by one between the plurality of pressing members and the pressing plate; The plurality of connecting rods are movably arranged on the pressure plate; one end of each of the connecting rods is connected to a pressing member, and the other end of each of the connecting rods is provided with a limiting portion, and the limiting portion is located on a side of the pressure plate away from the supporting member, so as to limit the pressure plate between the limiting portion and the elastic member; The driving member is connected to the pressure plate, and is used to drive the pressure plate to approach or move away from the supporting member, so as to drive the multiple clamping members to move between the first position and the second position, and to make the pressure plate press or release the multiple elastic members along the connecting rod.

3. The solder strip clamping mechanism according to claim 2, characterized in that: The welding strip clamping mechanism further comprises a fixing seat and a plurality of positioning members; the fixing seat is arranged on a side of the pressing plate away from the supporting member; The plurality of positioning members correspond to the plurality of pressing members one by one; each of the positioning members is movably disposed through the pressing plate and the corresponding pressing member; One end of each positioning member away from the supporting member is connected to the fixing seat; each elastic member is sleeved on the outside of the positioning member, one end of each elastic member abuts against the pressing plate, and the other end abuts against the clamping member.

4. The solder strip clamping mechanism according to claim 3, characterized in that: Each of the positioning components comprises a connecting block and two positioning rods connected to the connecting block; the connecting block is connected to the fixing seat; the two positioning rods are distributed on both sides of the connecting rod, and the two positioning rods are movably arranged in the pressing plate and the same pressing component; The elastic component includes two elastic members corresponding to the two positioning rods. Each of the elastic members is sleeved on the outside of one of the positioning rods. One end of each of the elastic members abuts against the pressing plate, and the other end abuts against the clamping member.

5. The solder strip clamping mechanism according to claim 4, characterized in that: The welding strip clamping mechanism also includes a first adjusting member, which is sleeved on the positioning rod, one end of the first adjusting member abuts against the pressure plate, and the other end of the first adjusting member abuts against the elastic member, and the first adjusting member is used to adjust the initial preset pressure applied by the elastic member to the clamping member.

6. The solder strip clamping mechanism according to claim 3, characterized in that: The fixing seat is provided with a first slide groove, the pressure plate is provided with a second slide groove for the positioning member to pass through and a third slide groove for the connecting rod to pass through, the first slide groove, the second slide groove and the third slide groove all extend along the arrangement direction of the multiple clamping members; one end of each positioning member away from the supporting member is connected to the fixing seat through a first fastener, and the first fastener passes through the first slide groove from a side of the fixing seat away from the supporting member and is connected to the positioning member.

7. The solder strip clamping mechanism according to claim 3, characterized in that: The driving component includes a driving member, a push plate and a plurality of transmission rods, wherein the push plate is arranged on a side of the fixed seat away from the supporting member; the plurality of transmission rods are movably passed through the fixed seat, one end of the plurality of transmission rods are detachably connected to the pressure plate, and the other end of the plurality of transmission rods are detachably connected to the push plate; the driving member is connected to the push plate, and the driving member is used to drive the push plate to approach or move away from the fixed seat.

8. The solder strip clamping mechanism according to claim 7, characterized in that: It also includes a second adjusting member, which is arranged on the push plate. The distance between the push plate and one end of the second adjusting member close to the fixed seat is adjustable, so that the travel of the push plate moving towards the fixed seat is adjustable.

9. The solder strip clamping mechanism according to claim 8, characterized in that: The second adjusting member includes an adjusting rod and a second fastener. The adjusting rod is movably arranged on the push plate, and the adjusting rod is fixed to the push plate by the second fastener.

10. The solder strip clamping mechanism according to claim 7, characterized in that: The welding strip clamping mechanism also includes a sensor component, which is used to monitor whether the multiple clamping members are in the first position or the second position; the driving member is electrically connected to the sensor component and starts and stops according to the signal of the sensor component.

11. The solder strip clamping mechanism according to claim 10, characterized in that: The welding ribbon clamping mechanism further comprises a mounting frame, and the driving member, the fixing seat and the supporting member are all detachably connected to one side of the mounting frame; The sensing assembly includes a plurality of proximity sensors, which are arranged close to the supporting member and spaced apart on the mounting frame; the plurality of proximity sensors correspond one to one with the plurality of clamping members, and each of the proximity sensors is used to monitor whether a clamping member is in the first position or the second position; the driving member is electrically connected to the plurality of proximity sensors, and starts and stops according to the signals of the plurality of proximity sensors.

12. The solder strip clamping mechanism according to claim 2, characterized in that: The connecting rod is connected to the clamping member through a third fastener. The clamping member is provided with a through hole for the third fastener to pass through. The connecting rod is provided with a mounting hole that cooperates with the third fastener. The third fastener passes through the through hole from a side of the clamping member close to the supporting member and is connected to the mounting hole of the connecting rod.

13. The solder strip clamping mechanism according to claim 12, characterized in that: The supporting member is provided with an escape groove, the escape groove extending along the arrangement direction of the plurality of pressing members, and the escape groove is used to escape the third fastener.

14. The solder strip clamping mechanism according to claim 1, characterized in that: The pressing member comprises a pressing portion and a first connecting portion which are connected to each other, the elastic member is arranged between the first connecting portion and the pressing member, and the pressing member is connected to the first connecting portion; the pressing portion is used to press the welding strip onto the supporting member.

15. The solder strip clamping mechanism according to claim 14, characterized in that: A first distance exists between the side of the pressing portion close to the supporting member and the supporting member, a second distance exists between the side of the first connecting portion close to the supporting member and the supporting member, and the first distance is smaller than the second distance.

16. A string welding machine, characterized in that: It comprises the welding strip clamping mechanism as described in any one of claims 1 to 15.

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