CN216488104U

CN216488104U - Battery string welding strip cutting device and battery string processing system

Info

Publication number: CN216488104U
Application number: CN202122478004.9U
Authority: CN
Inventors: 苏军赫
Original assignee: Chuzhou Longi Solar Technology Co Ltd
Current assignee: Chuzhou Longi Solar Technology Co Ltd
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2022-05-10
Anticipated expiration: 2031-10-14

Abstract

The utility model discloses a battery string welding strip cutting device and a battery string processing system, relates to the technical field of photovoltaic modules, and aims to prevent a battery string welding strip from being bent due to collision with a cutter, avoid the problem that the end welding strip of the battery string cannot be effectively cut, ensure normal conveying of the battery string, reduce poor output and improve working efficiency. The battery series welding belt cutting device comprises a first supporting part, a second supporting part and a cutting assembly. The first supporting part is arranged below the battery string in a fastened mode, and the second supporting part comprises a liftable supporting plate arranged below the battery string. Under the condition that the first supporting part and the second supporting part support the battery string, the cutting assembly is used for cutting a welding strip at the end part of the battery string. The battery string processing system comprises conveying belts and a battery string welding strip cutting device which are arranged at intervals, wherein the battery string welding strip cutting device is positioned between the two sections of the conveying belts.

Description

Battery string welding strip cutting device and battery string processing system

Technical Field

The utility model relates to the technical field of photovoltaic modules, in particular to a battery series welding strip cutting device and a battery series processing system.

Background

In the technical field of photovoltaic modules, a plurality of battery pieces are connected through solder strips to form a battery string. In the industry, the welding strip is divided into an interconnection bar and a bus bar according to the function of the welding strip, one end of the interconnection bar is connected with the electrode on the front surface of one battery piece, the other end of the interconnection bar is connected with the electrode on the back surface of the other battery piece, and the interconnection bar connects a plurality of batteries to form a battery string. The bus bar is provided at an end portion of the battery string, and the bus bar is connected with the interconnector to connect the plurality of battery strings.

The technical problems in the prior art are now explained by taking an interconnector as an example. Compared with the photovoltaic module connected by the conventional interconnector, the photovoltaic module connected by the special-shaped interconnector has a complex production process. The special-shaped interconnecting strip comprises triangular sections and flat sections which are alternately arranged in sequence, and in practical application, the front surface of one battery piece corresponds to the triangular sections, and the back surface of the other battery piece corresponds to the flat sections. The busbar sets up the tip at the battery cluster, and the busbar links to each other with the interconnector, connects a plurality of battery clusters, and at this moment, the interconnector that the cluster head and the cluster tail of battery cluster need reserve out certain length is used for being connected with the busbar. However, the reserved length is generally longer than the welding distance with the bus bar, and at this time, the interconnection bar at the head/tail of the battery string needs to be cut.

During specific implementation, the front and rear conveyor belts of the battery string cutting device are designed in a sectional mode, and a gap is reserved between the two conveyor belts and the cutting device, so that redundant interconnectors which are conveniently cut fall. However, when the battery cluster before moving to the cutter, because the effect of gravity, the interconnector of battery cluster front end droops the phenomenon easily to appear, leads to the interconnector to collide with the cutter and takes place crooked, not only can effectively cut the interconnector, influences the battery cluster moreover and carries, reduces work efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a battery string welding strip cutting device and a battery string processing system, which can prevent a battery string welding strip from being bent due to collision with a cutter, avoid the problem that the welding strip cannot be effectively cut, ensure normal conveying of the battery string, reduce poor output and improve working efficiency.

In order to achieve the above object, in a first aspect, the present invention provides a battery string solder strip cutting device. The battery series welding strip cutting device is applied to a battery series processing system. The battery string processing system comprises conveying belts arranged at intervals, the conveying belts are used for driving the battery strings to move, and the battery string welding strip cutting device is located between the two sections of the conveying belts. The battery series welding belt cutting device comprises a first supporting part, a second supporting part and a cutting assembly. The first supporting part is fastened below the battery string, and the second supporting part comprises a liftable supporting plate arranged below the battery string. Under the condition that the first supporting part and the second supporting part support the battery string, the cutting assembly is used for cutting a welding strip at the end part of the battery string.

When the technical scheme is adopted, the battery series welding strip cutting device is located between the two sections of conveying belts, the battery series welding strip cutting device comprises a first supporting portion and a second supporting portion, the first supporting portion is fastened below the battery string, and the second supporting portion comprises a liftable supporting plate arranged below the battery string. When the battery string runs between the two sections of conveyor belts under the driving of the conveyor belts, the first supporting part and the second supporting part are used for supporting the battery string, so that supporting force is provided for the battery string, and the battery string is prevented from falling under the action of gravity. Moreover, the setting of backup pad liftable is in battery cluster below, when first supporting part supports the battery cluster, the backup pad is in the extreme lower position, the area that welds of battery cluster front end receives the drooping bending phenomenon of gravity influence appearance this moment, meanwhile the backup pad rises and lifts and welds the area, make to weld the area front end and pass through the cutting assembly position smoothly, prevent because of welding area and cutting assembly bump appear welding under the condition of taking the bending phenomenon, avoid cutting assembly can not effectively cut the production of taking the problem of welding, therefore, can effectually guarantee the normal transport of battery cluster, in order to promote work efficiency.

In a possible implementation manner, the battery string welding strip cutting device further comprises a bearing frame, and the first supporting part and the cutting assembly are fixedly arranged on the bearing frame.

When adopting above-mentioned technical scheme, first supporting part and cutting assembly fastening set up on bearing the frame, bear the frame and provide stable holding power for first supporting part and cutting assembly, for the normal transport of battery cluster and the cutting of welding the area provide the guarantee, do benefit to the stability of reinforcing device, extension means's life.

In one possible implementation mode, first supporting parts are arranged at the front end and the rear end of the cutting assembly in an opposite mode; the first supporting part comprises at least one first supporting rod and at least one second supporting rod, the first supporting rod is fastened on the bearing frame, the first supporting rod and the second supporting rod are of T-shaped structures, the first supporting part penetrates through the supporting plate, and the top of the second supporting rod, which is located at the rear end of the cutting assembly, is inclined upwards along the conveying direction of the battery string.

When adopting above-mentioned technical scheme, both ends are in opposite directions around cutting assembly are provided with first supporting part, and first supporting part passes the backup pad, shows that first supporting part and second supporting part have intersection in the position, and the transition from first supporting part to second supporting part when being convenient for battery cluster operation. The top of the second support rod positioned at the rear end of the cutting assembly inclines upwards along the conveying direction of the battery string, so that the second support rod can smoothly receive the battery string conveyed by the conveying belt. The first supporting part that is located both ends sets up in opposite directions around the cutting assembly, and the second bracing piece top that is located the cutting assembly rear end inclines upward along the direction of delivery of battery cluster, show from this, the second bracing piece top that is located the cutting assembly front end inclines downward along the direction of delivery of battery cluster, not only make and leave the clearance between cutting assembly front end and the next section conveyer belt, make the area of welding of battery cluster front end drop smoothly after being cut, and be convenient for the battery cluster along being located the first supporting part of cutting assembly front end transition to the next section conveyer belt on, do benefit to the transport of battery cluster. Based on this, the setting of first supporting part not only can make the smooth dropping of welding strip after cutting, can guarantee the smooth transport of battery cluster moreover.

In a possible implementation manner, the supporting plate is arranged to be an arc-shaped structure inclined upwards along the conveying direction of the battery string, the rear end of the supporting plate is located below the front end of the second supporting rod, and the supporting plate is provided with an opening through which the first supporting part passes. The second support part further comprises a first driving unit and a buffer unit, and the first driving unit drives the support plate to ascend or descend through the connecting plate. The buffer unit is provided with a first end and a second end which are opposite, the first end is tightly propped against the supporting plate, and the second end is tightly propped against the connecting plate.

When the technical scheme is adopted, the rear end of the supporting plate is located below the front end of the second supporting rod, so that the transition from the first supporting part to the second supporting part is facilitated when the battery string runs, and the welding strip at the front end of the battery string is received by the supporting plate. The backup pad sets up to the arc structure of the direction of delivery tilt up along the battery cluster for when the battery cluster moved to backup pad department and is supported by the backup pad, the battery cluster front end welds the area and moves along the arc structure, does benefit to the transport of battery cluster. Moreover, after the welding strip at the rear end of the battery string is cut off, the welding strip which is cut off conveniently slides along the arc-shaped structure, and the welding strip which is cut off is prevented from gathering at the supporting part to influence the operation of other battery strings.

In a possible realization mode, the included angle between the two ends of the arc-shaped structure and the central connecting line of the arc-shaped structure is alpha, and alpha is more than or equal to 15 degrees and less than or equal to 40 degrees.

In a possible implementation manner, the cutting assembly comprises a lower cutter, an upper cutter and a thimble, and the lower cutter is tightly arranged on the bearing frame. The upper cutter and the lower cutter are arranged oppositely, and the upper cutter is arranged above the lower cutter in a lifting manner. The thimble is fastened and arranged on the upper cutter, and the lower end of the thimble protrudes out of the cutting edge of the upper cutter.

When the technical scheme is adopted, the lower cutter is tightly arranged on the bearing frame, the upper cutter can be lifted and arranged above the lower cutter, the upper cutter and the lower cutter adopt a movable-static matching mode to cut the welding strip, the stability of the device is enhanced, and in addition, when the upper cutter is lifted, a moving space is reserved for the battery strings, so that the interference caused by the conveying of the battery strings is prevented. The thimble is fastened and arranged on the upper cutter, and when the upper cutter moves downwards, the upper cutter drives the thimble to move downwards synchronously. The lower end of the thimble protrudes out of the cutting edge of the upper cutter, and the buffer unit included in the second supporting part is provided with a first end and a second end which are opposite, the first end is tightly propped against the supporting plate, and the second end is tightly propped against the connecting plate. Therefore, when the ejector pin moves downwards along with the upper cutter, before the upper cutter and the lower cutter perform cutting operation, the ejector pin is firstly contacted with the support plate, the support plate is further moved downwards along with the downward movement of the upper cutter, so that the battery series welding strip positioned above the support plate moves downwards, the bottom of the welding strip is contacted with the cutting edge of the lower cutter, the welding strip is conveniently cut off, and meanwhile, the support plate is prevented from interfering the cutting operation.

In a possible implementation manner, the cutting assembly further comprises a second driving unit fixedly arranged on the bearing frame, and the second driving unit is used for driving the upper cutting knife to ascend or descend.

In a possible implementation manner, the second supporting portion further comprises a sliding rail fixedly arranged on the side portion of the supporting plate, and a sliding block fixedly arranged on the bearing frame, and the sliding block is matched with the sliding rail.

When adopting above-mentioned technical scheme, when first drive unit drives the backup pad and rises or descends, the slide rail is along with the backup pad and along synchronous rising or descending of slider, not only is favorable to restricting the position of backup pad, prevents the off tracking of battery cluster, avoids effectively cutting the solder strip, strengthens the backup pad moreover and rises or the stability that descends.

In one possible implementation, the first and second driving units are one of pneumatic or hydraulic cylinders.

In a second aspect, the utility model further provides a battery string processing system, which includes conveying belts arranged at intervals and a battery string welding strip cutting device described in the first aspect or any one of the possible implementation manners of the first aspect, wherein the battery string welding strip cutting device is located between two sections of the conveying belts.

The beneficial effect of the battery string processing system provided by the second aspect is the same as that of the battery string solder strip cutting device described in the first aspect or any possible implementation manner of the first aspect, and details are not repeated here.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model. In the drawings:

fig. 1 is a schematic top view illustrating a positional relationship between a battery string and a battery string processing system when cutting a welding strip at a front end of the battery string according to an embodiment of the present invention;

fig. 2 is a schematic top view illustrating a positional relationship between a battery string and a battery string processing system when cutting a welding strip at a rear end of the battery string according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a device for cutting a string welding strip of a battery according to an embodiment of the present invention;

FIG. 4 is a schematic left view of a device for cutting a string welding strip of a battery according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a second supporting portion according to an embodiment of the present invention.

Reference numerals:

1-a conveyor belt, 2-a first supporting part, 21-a first supporting rod,

22-a second support bar, 23-a connecting bar, 3-a second support part,

31-a support plate, 32-a first drive unit, 33-a buffer unit,

34-connecting plate, 35-slide rail, 36-slide block,

4-cutting component, 41-lower cutter, 42-upper cutter,

43-ejector pin, 44-second drive unit, 5-carriage.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Fig. 1 and fig. 2 are schematic top views illustrating a positional relationship between a battery string and a battery string processing system according to an embodiment of the present invention, and as shown in fig. 1 and fig. 2, the battery string processing system according to the embodiment of the present invention includes a conveyor belt 1 and a battery string solder strip cutting device, which are arranged at intervals, wherein the conveyor belt 1 is used for driving the battery string to move, and the battery string solder strip cutting device is located between two sections of the conveyor belts 1 and is used for cutting and removing excess solder strips at ends of the battery string.

Referring to fig. 1 to 5, the battery stringer cutting apparatus includes a first support 2, a second support 3, and a cutting assembly 4. The first support part 2 is arranged below the battery string in a fastening manner, and the second support part 3 comprises a liftable support plate 31 arranged below the battery string. The cutting assembly 4 is used to cut the solder ribbon at the end of the battery string with the first and second support portions 2 and 3 supporting the battery string.

In specific implementation, as shown in fig. 1, 2 and 3, a gap is reserved between the two sections of the conveyor belts 1, and the battery string welding belt cutting device is arranged in the gap between the two sections of the conveyor belts 1. Along the running direction of the battery string, when the battery string runs between two sections of conveyor belts 1 under the drive of the conveyor belts 1, the front part of the battery string is borne by the first supporting part 2 and the second supporting part 3. The first support part 2 and the second support part 3 support the battery string, provide support force for the battery string, and prevent the battery string from falling under the action of gravity. Furthermore, the setting of backup pad 31 liftable is in battery cluster below, when the battery cluster front end is supported by first supporting part 2, backup pad 31 is in the extreme low position, the area that welds that is located the battery cluster front end this moment receives the influence of gravity and appears flagging phenomenon, before the area that welds of battery cluster front end collides with cutting assembly 4, backup pad 31 rises and lifts the battery cluster front end and welds the area, make and weld the area front end and pass through cutting assembly 4 position smoothly, prevent that the battery cluster front end from welding the area and colliding with cutting assembly 4, the area phenomenon of bending appears welding, lead to cutting assembly 4 can not effectively cut the battery cluster front end and weld the area, guarantee the normal transport of battery cluster, promote work efficiency. At this time, the battery string is simultaneously supported by the conveyor belt 1, the first support part 2 and the support plate 31, and the conveyor belt 1 provides power for the battery string to advance. When the battery cluster moves to the assigned position, the unnecessary solder strip of battery cluster front end is cut by cutting assembly 4 and is got rid of, and the solder strip that is cut off falls from backup pad 31 front end under the action of gravity, avoids influencing the transport of battery cluster. The battery string is driven by the conveyor belt 1 to continue to move forwards, the front part of the battery string is received and conveyed by the next section of the conveyor belt 1, when the battery string moves to a specified position, redundant welding strips at the rear end of the battery string are cut and removed by the cutting assembly 4, the supporting plate 31 descends, and the welding strips cut at the rear end of the battery string slide along the supporting plate 31.

It should be noted that, in the embodiment of the present invention, the direction along the battery string is defined as the front end, and correspondingly, the direction opposite to the battery string is defined as the rear end. In addition, it will be appreciated that while the first support 2 and the second support 3 support the battery string, the battery string is still partially located on the conveyor belt 1, with the conveyor belt 1 providing the battery string with power for advancement.

As a possible implementation manner, the string welding strip cutting device further comprises a bearing frame 5, and the first supporting part 2 and the cutting assembly 4 are both fixedly arranged on the bearing frame 5. Bear frame 5 and provide stable holding power for first supporting part 2 and cutting assembly 4, for the normal transport of battery cluster and the cutting of welding the area provide the guarantee, do benefit to the stability of reinforcing means, the life of extension means. As shown in fig. 3, the structure and material of the carriage 5 may be set according to actual conditions, and are not particularly limited herein. Under the condition of ensuring the structural strength of the cutting device and the normal conveying of the battery strings, the upper part of the bearing frame 5 provided by the embodiment of the utility model is arranged to be a door-shaped structure, and the lower end of the door-shaped structure is fixedly connected with the bearing plate.

In some embodiments, the front end and the rear end of the cutting assembly are oppositely provided with first supporting parts; the first support part 2 comprises at least one first support rod 21 and at least one second support rod 22, the first support rod 21 is fastened on the bearing frame 5, the first support rod 21 and the second support rod 22 are in a T-shaped structure, the first support part 2 penetrates through the support plate 31, and the top of the second support rod 22 at the rear end of the cutting assembly is inclined upwards along the conveying direction of the battery string.

As shown in fig. 3 and 4, the first support 2 passes through the support plate 31, indicating that the first support 2 and the second support 3 intersect in position to facilitate the transition from the first support 2 to the second support 3 during operation of the battery string. The top of the second support rod 22 is inclined upwards along the conveying direction of the battery string, and in specific implementation, the top of the second support rod 22 may be configured as a plane or an arc-shaped surface structure, which is only illustrated here and not specifically limited, so that the second support rod 22 can smoothly receive the battery string conveyed by the conveyor belt 1. In practical applications, the first supporting rod 21 is fixedly connected to the loading frame 5 through a connecting rod 23, the connecting rod 23 and the first supporting rod 21 are in an L-shaped structure, and the connecting rod 23 and the second supporting rod 22 are arranged in parallel. Simultaneously, both ends all are provided with first supporting part 2 around cutting assembly 4, and the first supporting part 2 that is located cutting assembly 4 front end sets up in opposite directions with the first supporting part 2 that is located cutting assembly 4 rear end, and the second bracing piece 22 top that is located cutting assembly 4 rear end inclines upward along the direction of delivery of battery cluster, show from this, the second bracing piece 22 top that is located cutting assembly 4 front end inclines downward along the direction of delivery of battery cluster to one side, not only make and leave the clearance between cutting assembly 4 front end and the next section conveyer belt 1, make the solder strip of battery cluster front end drop smoothly after being cut, and be convenient for the battery cluster along being located cutting assembly 4 front end's first supporting part 2 transition to the next section conveyer belt 1 on, do benefit to the transport of battery cluster. Based on this, the arrangement of the first support part 2 not only can enable the welding strip to smoothly drop after cutting, but also can ensure the smooth conveying of the battery string.

The number and material of the first support bar 21 and the corresponding second support bar 22 and connecting bar 23 are set according to actual conditions, and are not limited in detail here. In the embodiment of the present invention, the first support rods 21 and the corresponding second support rods 22 and connecting rods 23 are made of alloy materials, the number of the first support rods 21 is four, and the number of the corresponding second support rods 22 and connecting rods 23 is four. Two of the first support rods 21 and the corresponding second support rods 22 and connecting rods 23 are located at the rear end of the cutting assembly 4, and the other two first support rods 21 and the corresponding second support rods 22 and connecting rods 23 are located at the front end of the cutting assembly 4. The width of the second support rod 22 is designed to be smaller than the distance between the two main grids of the battery piece, so that in practical application, under the condition that the second support rod 22 is effectively prevented from being in direct contact with the main grids of the battery piece, the abrasion of the second support rod 22 on the main grid lines can be reduced, and on the basis, the influence on the electrical output performance of the main grid lines can be reduced. In practice, the width of the second support bar 22 can be designed to be 10mm, but it is not limited thereto. Moreover, the distance between the two second support rods 22 on the same side of the cutting assembly 4 should be smaller than the width of the battery piece, so that the battery piece is supported by the two second support rods 22 when the battery piece moves to the position above the first support part 2. It should be noted that the length of the second support rod 22 is set according to actual conditions, so as to ensure that the battery string is supported by the conveyor belt 1 when the battery string is supported by the second support rod 22, so that the conveyor belt 1 provides forward power for the operation of the battery string.

As a possible implementation manner, the support plate 31 is provided in an arc structure inclined obliquely upward in the conveying direction of the battery string, and the rear end of the support plate 31 is located below the front end of the second support rod 22, and the support plate 31 is provided with an opening through which the first support part 2 passes.

As shown in fig. 3, 4 and 5, the rear end of the support plate 31 is located below the front end of the second support rod 22, so that the transition from the first support part 2 to the second support part 3 during the operation of the battery string is facilitated, and the support plate 31 is favorable for receiving the solder strip at the front end of the battery string. The support plate 31 is arranged to be an arc-shaped structure inclined upwards along the conveying direction of the battery string, so that when the battery string runs to the support plate 31 and is supported by the support plate 31, the front end welding belt of the battery string runs along the arc-shaped structure, and the conveying of the battery string is facilitated. Moreover, after the welding strip at the rear end of the battery string is cut off, the welding strip which is cut off conveniently slides along the arc-shaped structure, and the welding strip which is cut off is prevented from gathering at the supporting part to influence the operation of other battery strings. The included angle between the two ends of the arc-shaped structure of the supporting plate 31 and the central connecting line of the arc-shaped structure is alpha, alpha is more than or equal to 15 degrees and less than or equal to 40 degrees, preferably alpha is more than or equal to 25 degrees and less than or equal to 30 degrees, and the size of alpha is set according to the actual situation. The upper surface of the supporting plate 31 is the front surface of the welding strip gauge and is used for lifting the welding strip. The back surface of support plate 31 is a structural surface, so that support plate 31 has a certain strength to prevent support plate 31 from deforming. Side plates can be arranged on two sides of the supporting plate 31, so that the supporting plate 31 is structurally enhanced while the connecting plate 34 is connected with other parts. The support plate 31 is provided with an opening at the position of the first support 2 for the first support 2 to pass through. The opening size is adjusted according to first supporting part 2 width, and is wider 2mm than second bracing piece 22 width, and opening quantity and position are adjusted according to first supporting part 2. In practical implementation, in the embodiment of the present invention, a supporting plate 31 may also be disposed at the front end of the cutting assembly 4, and the two supporting plates 31 are symmetrically disposed at the front end and the rear end of the cutting assembly 4.

In an alternative manner, the second support part 3 further includes a first driving unit 32 and a buffer unit 33, and the first driving unit 32 drives the support plate 31 to ascend or descend through the connection plate 34. The buffer unit 33 has opposite first and second ends, the first end abutting against the support plate 31 and the second end abutting against the connecting plate 34. The cutting assembly 4 comprises a lower cutter 41, an upper cutter 42 and a thimble 43, wherein the lower cutter 41 is fixedly arranged on the bearing frame 5. The upper cutter 42 is disposed opposite to the lower cutter 41, and the upper cutter 42 is disposed above the lower cutter 41 in a liftable manner. The thimble 43 is fastened on the upper cutter 42, and the lower end of the thimble 43 protrudes out of the lower end of the upper cutter 42. The cutting assembly 4 further comprises a second driving unit 44 fixedly disposed on the carriage 5, the second driving unit 44 being adapted to drive the upper cutter 42 to ascend or descend. The cylinder of the second drive unit 44 is fastened to the carriage 5, and the telescopic end of the second drive unit 44 is connected to the upper cutter 42.

Referring to fig. 3 and 4, the lower cutter 41 is fastened on the carrier 5, the upper cutter 42 is driven by the second driving unit 44 to be arranged above the lower cutter 41 in a lifting manner, and the upper cutter 42 and the lower cutter 41 cut the solder strip in a movable-static matching manner, which is not only beneficial to enhancing the stability of the device, but also is beneficial to leaving a moving space for the battery string when the upper cutter 42 is lifted, so as to prevent interference on the transportation of the battery string. The thimble 43 is fastened on the upper cutter 42, and when the upper cutter 42 moves downwards, the upper cutter 42 drives the thimble 43 to move downwards synchronously. The lower end of the thimble 43 protrudes from the lower end of the upper cutter 42, and the buffer unit 33 included in the second support portion 3 has a first end and a second end opposite to each other, the first end abutting against the support plate 31, and the second end abutting against the connecting plate 34. Therefore, when the ejector pin 43 moves downwards along with the upper cutter 42 and before the upper cutter 42 and the lower cutter 41 perform cutting operation, the ejector pin 43 firstly contacts the support plate 31 and further moves the support plate 31 downwards along with the downward movement of the upper cutter 42, so that the battery series welding strip above the support plate 31 moves downwards, the bottom of the welding strip is contacted with the cutting edge of the lower cutter 41, the welding strip is conveniently cut off, and the interference of the support plate 31 on the cutting operation is avoided.

In one embodiment, the first driving unit 32 and the second driving unit 44 are one of a pneumatic cylinder and a hydraulic cylinder. The pneumatic cylinder or the hydraulic cylinder can be an actuating element which does linear reciprocating motion, and the pneumatic cylinder or the hydraulic cylinder is simple in structure and reliable in work. When the reciprocating motion is realized by the pneumatic cylinder or the hydraulic cylinder, a speed reducing device can be omitted, no transmission gap exists, and the motion is stable. The number of the first driving units 32 is set according to the number of the support plates 31 in practical cases. When the front end and the rear end of the lower cutter 41 are provided with the supporting plates 31, the first driving unit 32 drives the supporting plates 31 to ascend, so that the welding strips at the front end and the rear end of the battery string are supported, the welding strips are normalized to a certain height, pass through the cutter smoothly and are cut by the cutter. The thimble 43 protrudes from the upper cutter 42 by 1-2 mm to press the support plate 31. The material of the thimble 43 may be a metal material, the joint of the thimble 43 and the upper cutter 42 is designed to be a slope or a plane structure, and the thimble 43 and the upper cutter 42 may be fastened by welding or screwing, and may be set according to actual conditions, which is not limited specifically here. In addition, the buffer unit 33 may employ a compression spring, which is always in a compressed state. One end of the compression spring is pressed against the connecting plate 34, and the other end of the compression spring is pressed against the back of the support plate 31. When the support plate 31 is pressed by the ejector pin 43, the compression spring is further compressed. The buffer unit 33 may be a buffer that functions to buffer the support plate 31 when pressed by the thimble 43.

In some embodiments, as shown in fig. 3 and 5, the second support part 3 further comprises slide rails 35 fastened to the sides of the support plate 31, and sliders 36 fastened to the carriage 5, the sliders 36 cooperating with the slide rails 35. The number of the slide rails 35 and the sliders 36 is two, and the two slide rails are respectively arranged at the side portions of the support plate 31. When first drive unit 32 drives supporting plate 31 and rises or descends, slide rail 35 is along supporting plate 31 and along slider 36 synchronous rising or descending, not only is favorable to restricting the position of supporting plate 31, prevents the off tracking of battery cluster, avoids effectively cutting the solder strip, strengthens the stability that the supporting plate rises or descends moreover. In the embodiment, the side of the supporting plate 31 is provided with a side plate, the sliding rail 35 is fastened to the side plate, and the sliding block 36 is fastened to the carriage 5, and the fastening arrangement here may be welding, screwing, and the like, and is not limited here.

The following describes the working principle of the battery series welding strip cutting device by taking a possible implementation manner as an example and taking the application of the battery series welding strip cutting device provided by the embodiment of the utility model to the cutting of the interconnection strips as an example. It is to be understood that the following description is only for purposes of understanding, and is not intended to be limiting.

Referring to fig. 1 to 5, the battery string is driven by a section of conveyor belt 1 to run along the running direction of the battery string, after the interconnector at the front end of the battery string passes through the second support rod 22, the battery string bends and sags under the influence of gravity, at this time, the telescopic end of the first drive unit 32 extends out, the support plate 31 and the slide rail 35 are driven by the connecting plate 34 to slide upwards along the slide block 36, the interconnector at the front end of the battery string is lifted upwards to be slightly higher than the edge of the lower cutter 41, the battery string continues to run forwards, the redundant interconnector passes through the edge of the lower cutter 41, the telescopic end of the second drive unit 44 extends out, the upper cutter 42 and the ejector pin 43 are driven to run downwards, the ejector pin 43 first contacts with the support plate 31, continues to run downwards, and presses the support plate 31 to move downwards, and simultaneously the upper cutter 42 is meshed with the lower cutter 41 to cut off the interconnector, and the cut-off interconnector falls under the action of gravity. The telescopic end of the second driving unit 44 is contracted, the upper cutter 42 returns, and the support plate 31 is restored to be flush with the cutting edge of the lower cutter 41, so that the cutting action of the interconnector at the front end of the battery string is completed. The battery string continues to move forward, after the interconnector at the rear end of the battery string is in place, the telescopic end of the second driving unit 44 extends out to drive the upper cutter 42 and the thimble 43 to move downward, the thimble 43 firstly contacts with the support plate 31 to continue to move downward and presses the support plate 31 to move downward, meanwhile, the upper cutter 42 is meshed with the lower cutter 41 to cut off the interconnector, the cut-off interconnector drops on the support plate 31 at the rear end of the lower cutter 41, and when the telescopic end of the first driving unit 32 is retracted, the cut-off interconnector slides along the support plate 31 into the collecting tank below the cutting device, so that the cutting action of the interconnector at the rear end of the battery string is completed. Repeating the above actions and continuing production operation.

In the principle of the battery serial welding strip cutting device described above, although the interconnection bar is taken as an example, the present application is not limited to the application to the interconnection bar, and may also be applied to the cutting of other welding strips such as a bus bar.

In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A battery series welding strip cutting device is characterized in that the battery series welding strip cutting device is applied to a battery series processing system, the battery series processing system comprises conveying belts arranged at intervals, the conveying belts are used for driving a battery series to move, and the battery series welding strip cutting device is located between two sections of the conveying belts;

the battery series welding strip cutting device comprises a first supporting part, a second supporting part and a cutting assembly; the first supporting part is fixedly arranged below the battery string; the second supporting part comprises a supporting plate which is arranged below the battery string in a lifting manner; under the condition that the first supporting part and the second supporting part support the battery string, the cutting assembly is used for cutting the welding strip at the end part of the battery string.

2. The battery string welding tape cutting device according to claim 1, further comprising a carrier on which the first support and the cutting member are securely disposed.

3. The battery stringer cutting device of claim 2, wherein the first supporting portions are oppositely arranged at front and rear ends of the cutting assembly; the first supporting part comprises at least one first supporting rod and at least one second supporting rod, the first supporting rod is fastened on the bearing frame, the first supporting rod and the second supporting rod are of T-shaped structures, the first supporting part penetrates through the supporting plate, and the top of the second supporting rod at the rear end of the cutting assembly inclines upwards along the conveying direction of the battery string.

4. The battery string welding strip cutting device according to claim 3, wherein the support plate is provided in an arc-shaped structure inclined obliquely upward in the conveying direction of the battery string, and the rear end of the support plate is located below the front end of the second support rod; the supporting plate is provided with an opening for the first supporting part to pass through;

the second support portion further includes:

the first driving unit drives the supporting plate to ascend or descend through the connecting plate;

the buffer unit is provided with a first end and a second end which are opposite, the first end is tightly propped against the supporting plate, and the second end is tightly propped against the connecting plate.

5. The battery series welding strip cutting device according to claim 4, wherein the included angle between the two ends of the arc-shaped structure and the connecting line of the centers of the arc-shaped structures is alpha, and alpha is more than or equal to 15 degrees and less than or equal to 40 degrees.

6. The battery stringer tape cutting apparatus of claim 4, wherein said cutting assembly comprises:

the lower cutter is fixedly arranged on the bearing frame;

the upper cutter is arranged opposite to the lower cutter, and the upper cutter is arranged above the lower cutter in a lifting manner;

the thimble is fastened on the upper cutter, and the lower end of the thimble protrudes out of the cutting edge of the upper cutter.

7. The battery string welding strip cutting device according to claim 6, wherein the cutting assembly further comprises a second driving unit fastened to the carriage, the second driving unit being configured to drive the upper cutter to ascend or descend.

8. The battery string welding strip cutting device according to claim 2, wherein the second supporting portion further comprises a slide rail fixedly arranged on the side portion of the supporting plate, and a slide block fixedly arranged on the bearing frame, and the slide block is matched with the slide rail.

9. The battery string ribbon cutting device of claim 7, wherein the first drive unit and the second drive unit are one of a pneumatic cylinder or a hydraulic cylinder.

10. A battery string processing system comprising spaced apart conveyor belts and the battery string bead cutting apparatus of any of claims 1 to 9, the battery string bead cutting apparatus being located between two sections of the conveyor belts.