Power-on tool, suction module and series welding machine
By designing a switchable power-on assembly, the battery string can be powered up without moving down after being absorbed by the suction mechanism, which solves the problem of long testing time in the prior art and improves production efficiency and testing efficiency.
Patent Information
- Application Number
- CN202420906125.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-28
AI Technical Summary
In the prior art, the battery string needs to be moved downward for a long distance before EL defect detection to complete power-up, resulting in a longer test time and affecting production efficiency.
An electric-mounted machine is designed, including a mounting base, a first electric-mounted member and a second electric-mounted member. The second electric-mounted member can be switched between the first state and the second state, and the rotary member is driven by the driving member to make the first The second power supply is fitted or separated from the first power supply, so that the suction mechanism can complete the power supply of the battery string without moving downward after the suction mechanism absorbs the battery string.
Improves production efficiency, shortens test time, saves production time, and improves the power-on efficiency of battery strings.
Smart Images

Figure CN222176429U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of photovoltaic manufacturing, in particular to a power-on tooling, a suction module and a string welding machine. Background Art
[0002] After the battery string is welded on the stringer, EL (Electroluminescence) defect detection is required. On the stringer, the battery string is generally powered on, and then an EL tester is used to take photos and detect EL defects on the battery string.
[0003] In the prior art, after the battery string is transported to the position to be sucked on the EL defect detection station, the upper suction mechanism of the suction flip mechanism sucks the battery string, and the upper suction mechanism is provided with an upper power-on tooling, and the EL defect detection station is provided with a lower power-on tooling spaced relatively up and down from the upper power-on tooling. The upper suction mechanism drives the battery string to move downward and makes the upper power-on tooling press the lower power-on tooling to complete the power-on of the battery string. Only after the battery string is powered on can the EL tester be used for photo testing.
[0004] However, in the prior art, after the upper suction mechanism sucks the battery string, it needs to move down a long distance so that the upper power-on tooling can press the lower power-on tooling to complete the power-on of the battery string. This results in a long time required to complete the power-on and the test time, which affects production efficiency. Utility Model Content
[0005] The utility model aims to provide a power-on tool, a suction module and a string welding machine, which can improve production efficiency.
[0006] To achieve this purpose, the utility model adopts the following technical solutions:
[0007] Power-on tooling, including:
[0008] A mounting base configured to be mounted on the suction mechanism;
[0009] A first power-on component, fixedly disposed on the mounting seat;
[0010] A second power-on component is movably arranged on the mounting seat, and the second power-on component can be moved relative to the mounting seat to switch between a first state and a second state; in the first state, the second power-on component is attached to the first power-on component to power on the test piece sucked by the suction mechanism; in the second state, the second power-on component is separated from the first power-on component.
[0011] Optionally, the power-on tool further includes a second power-on component installation assembly, and the second power-on component installation assembly includes:
[0012] A driving member, disposed on the mounting seat;
[0013] The rotating member is hinged to the mounting seat, the second power-on member is fixedly mounted on the rotating member, and the driving member can drive the rotating member to rotate so that the rotating member drives the second power-on member to switch between the first state and the second state.
[0014] Optionally, the driving member comprises:
[0015] A driving member seat body, rotatably disposed on the mounting seat;
[0016] The telescopic shaft of the driving member is telescopically arranged on the driving member base, and the telescopic shaft of the driving member is connected to the rotating member.
[0017] Optionally, the driving member seat body is provided with a driving member seat body rotating shaft which is rotatably matched with the mounting seat.
[0018] Optionally, the mounting seat comprises:
[0019] A horizontal plate is configured to be mounted on the suction mechanism, and the first upper electrical component is fixedly disposed on the lower surface of the horizontal plate;
[0020] An upper mounting frame is arranged on the upper surface of the horizontal plate, and the driving member seat body is rotatably arranged on the upper mounting frame;
[0021] The lower mounting frame is arranged on the lower side of the transverse plate and is staggered with the lower mounting frame in the horizontal direction. The rotating member can be rotatably arranged on the lower mounting frame.
[0022] Optionally, a rotating shaft is provided on the lower mounting frame, and the rotating member can be rotatably disposed on the rotating shaft.
[0023] Optionally, the number of the second electrical component mounting assemblies is at least two, and at least two of the second electrical component mounting assemblies are spaced apart along the length direction of the mounting seat.
[0024] Absorption module, including:
[0025] A suction mechanism capable of sucking the test piece;
[0026] The above-mentioned power-on tooling, the mounting seat of the power-on tooling is installed on the suction mechanism, and when the suction mechanism sucks the test piece, the free end of the welding strip on the test piece is placed in contact with the first power-on component.
[0027] Optionally, the suction mechanism comprises:
[0028] A frame, on which a mounting seat of the power-on tooling is mounted;
[0029] A plurality of suction components are sequentially arranged at intervals along the length direction of the frame.
[0030] A string welding machine, the string welding machine comprising:
[0031] EL defect detection station;
[0032] The suction module mentioned above, the suction mechanism of the suction module can be movably arranged at the EL defect detection station.
[0033] Beneficial effects of the utility model:
[0034] When the power-on tool provided by the utility model is used, the mounting base is installed on the suction mechanism at the EL defect detection station of the string welding machine. After the suction mechanism sucks the battery string that has been welded, the second power-on component is controlled to switch to the first state. At this time, the second power-on component is attached to the first power-on component to power on the test piece (that is, the battery string) sucked by the suction mechanism. With this arrangement, the suction mechanism can power on the battery string without moving downward, thereby improving production efficiency and saving production time.
[0035] The suction mechanism and the string welding machine provided by the utility model include the above-mentioned power-on tooling, which have high production efficiency and save production time. BRIEF DESCRIPTION OF THE DRAWINGS
[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.
[0037] Figure 1 It is a structural schematic diagram of the power-on tooling provided by the utility model from one perspective;
[0038] Figure 2 It is a structural schematic diagram of the power-on tooling provided by the utility model from another perspective;
[0039] Figure 3 It is a partial structural schematic diagram of the string welding machine provided by the utility model;
[0040] Figure 4 yes Figure 3 Enlarged view of point A in the middle.
[0041] In the figure:
[0042] 10. Suction mechanism; 101. Frame; 20. Item to be tested; 201. Welding belt; 30. Welding conveyor belt; 40. Light box; 50. Stringing knife; 60. Rear conveyor belt;
[0043] 1. Mounting seat; 11. Horizontal plate; 12. Upper mounting frame; 13. Lower mounting frame; 14. Rotating shaft;
[0044] 2. The first power-on component;
[0045] 3. Second power-on component;
[0046] 4. Second upper electrical component installation assembly; 41. Driving component; 411. Driving component seat; 4111. Driving component seat shaft; 412. Driving component telescopic shaft; 42. Rotating component. DETAILED DESCRIPTION
[0047] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.
[0048] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0049] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0050] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.
[0051] Embodiment 1
[0052] See also Figure 1 and Figure 2 This embodiment provides a power-on tooling, which can be installed on the suction mechanism of the string welding machine to improve the power-on efficiency of the battery string sucked by the suction mechanism, thereby improving production efficiency and saving production time.
[0053] Specifically, in this embodiment, the power-on tooling includes a mounting seat 1 , a first power-on component 2 and a second power-on component 3 .
[0054] See also Figure 3 and Figure 4 The mounting base 1 is configured to be mounted on a suction mechanism 10 of a string welding machine. Preferably, the mounting base 1 can be detachably mounted on the suction mechanism 10 by bolts or screws.
[0055] The first electrical component 2 is fixedly disposed on the mounting seat 1 .
[0056] The second power-on component 3 is movably arranged on the mounting base 1, and the second power-on component 3 can move relative to the mounting base 1 to switch between a first state and a second state; in the first state, the second power-on component 3 is attached to the first power-on component 2 to power on the test piece 20 sucked by the suction mechanism 10; in the second state, the second power-on component 3 is separated from the first power-on component 2.
[0057] When the power-on tool provided in this embodiment is used, the mounting base 1 is mounted on the suction mechanism 10 at the EL defect detection station of the string welding machine. After the suction mechanism 10 sucks the battery string that has been welded, the second power-on component 3 is controlled to switch to the first state. At this time, the second power-on component 3 is attached to the first power-on component 2 to power on the test piece 20 (that is, the battery string) sucked by the suction mechanism 10. With this arrangement, the suction mechanism 10 can power on the battery string without moving downward, thereby improving production efficiency and saving production time.
[0058] Specifically, the structures of the first power-on component 2 and the second power-on component 3 respectively correspond to the upper power-on tooling and the lower power-on tooling in the prior art, and their structures are not described in detail here.
[0059] Furthermore, in order to realize the installation of the second upper electrical component 3 on the mounting seat 1 , in this embodiment, the upper electrical component tooling further includes a second upper electrical component installation assembly 4 , and the second upper electrical component installation assembly 4 includes a driving component 41 and a rotating component 42 .
[0060] The driving member 41 is disposed on the mounting seat 1 .
[0061] The rotating member 42 is hinged to the mounting seat 1 , the second upper electric member 3 is fixedly mounted on the rotating member 42 , and the driving member 41 can drive the rotating member 42 to rotate, so that the rotating member 42 drives the second upper electric member 3 to switch between the first state and the second state.
[0062] Preferably, the number of the second upper electric component installation components 4 is at least two, and at least two second upper electric component installation components 4 are arranged at intervals along the length direction of the mounting seat 1. In this way, multiple second upper electric component installation components 4 can realize the installation of the second upper electric component 3 on the mounting seat 1, and multiple second upper electric component installation components 4 can synchronously drive the second upper electric component 3 to switch states, thereby ensuring the stability of the state switching of the second upper electric component 3.
[0063] More specifically, the driving member 41 includes a driving member base 411 and a driving member telescopic shaft 412 .
[0064] The driving member seat body 411 can be rotatably disposed on the mounting seat 1 .
[0065] The driving member telescopic shaft 412 is telescopically disposed on the driving member base 411 , and the driving member telescopic shaft 412 is connected to the rotating member 42 .
[0066] Furthermore, a driving member seat body rotating shaft 4111 which is rotatably matched with the mounting seat 1 is provided on the driving member seat body 411 .
[0067] Optionally, in this embodiment, the driving member 41 is a cylinder; the driving member seat body 411 is a cylinder seat body, and the driving member telescopic shaft 412 is a cylinder push rod.
[0068] Specifically, Figure 1 The second upper electric component 3 is in the second state, and is separated from the first upper electric component 2. When the driving component 41 drives the rotating component 42 to rotate toward the first upper electric component 2, the first upper electric component 2 can rotate to fit the lower surface of the second upper electric component 3.
[0069] Specifically, in this embodiment, the mounting base 1 is an integrally formed structure to ensure the stability of the electrical tooling installed on the suction mechanism 10 .
[0070] Specifically, see Figure 1 In this embodiment, the mounting base 1 includes a transverse plate 11 , an upper mounting frame 12 and a lower mounting frame 13 .
[0071] The transverse plate 11 is configured to be mounted on the suction mechanism 10 , and the first upper electrical component 2 is fixedly disposed on the lower surface of the transverse plate 11 .
[0072] The upper mounting frame 12 is arranged on the upper surface of the horizontal plate 11, and the driving member seat body 411 is rotatably arranged on the upper mounting frame 12. Specifically, the upper mounting frame 12 includes two first mounting ears arranged at a relative interval, and both sides of the driving member seat body 411 are provided with a driving member seat body rotating shaft 4111, and the driving member seat body rotating shaft 4111 is rotatably connected with the first mounting ears in a one-to-one correspondence.
[0073] The lower mounting frame 13 is disposed at the lower side of the transverse plate 11 and is staggered with the lower mounting frame 13 in the horizontal direction. The rotating member 42 is rotatably disposed on the lower mounting frame 13 .
[0074] The upper mounting frame 12 and the lower mounting frame 13 are staggered vertically and horizontally, so that the rotating member 42 rotatably arranged on the lower mounting frame 13 can drive the second upper electrical member 3 to move to fit with or separate from the first upper electrical member 2 .
[0075] Furthermore, in order to realize the rotational arrangement of the rotating member 42 on the lower mounting frame 13 , a rotating shaft 14 is disposed on the lower mounting frame 13 , and the rotating member 42 can be rotatably disposed on the rotating shaft 14 .
[0076] Specifically, the lower mounting frame 13 includes two second mounting ears that are relatively spaced apart from each other, the rotating shaft 14 passes through all the second mounting ears, the rotating member 42 is rotatably disposed on the rotating shaft 14 , and the rotating member 42 is located between the two second mounting ears of the lower mounting frame 13 .
[0077] Specifically, each second upper electrical component mounting assembly 4 is correspondingly provided with an upper mounting frame 12 and a lower mounting frame 13 .
[0078] For example, in this embodiment, the working process of the power-on tool is as follows:
[0079] After the suction mechanism 10 sucks the battery string, the upper surface of the welding strip 201 of the battery string is fitted with the lower surface of the first power-on component 2; when the test piece 20 needs to be powered on, the telescopic shaft 412 of the driving member extends relative to the driving member base 411, and the rotating member 42 rotates around the rotating shaft 14 to the lower side of the first power-on component 2 until the second power-on component 3 is fitted with the first power-on component 2. At this time, the welding strip 201 is clamped between the second power-on component 3 and the first power-on component 2, and the battery string is powered on.
[0080] After the battery string is powered on, the EL detector on the string welding machine takes a photo of the battery string for inspection.
[0081] After the photographing is completed, the drive member telescopic shaft 412 retracts relative to the drive member base 411 , and the rotating member 42 rotates around the rotating shaft 14 and drives the second upper electric member 3 to separate from the first upper electric member 2 .
[0082] Embodiment 2
[0083] See also Figure 3 and Figure 4 The present embodiment provides an absorption module, which can be applied to a string welding machine to assist in completing the EL detection of a battery string, and can shorten the detection time and improve the detection efficiency.
[0084] Specifically, the suction module provided in this embodiment corresponds to the upper suction mechanism in the prior art.
[0085] Specifically, in this embodiment, the suction module includes a suction mechanism 10 and the power-on tooling of the first embodiment.
[0086] Specifically, the suction mechanism 10 can suction the test piece 20 .
[0087] The mounting base 1 of the power-on tooling is mounted on the suction mechanism 10 .
[0088] More specifically, in the present embodiment, the test piece 20 is a battery string. When the suction mechanism 10 sucks the test piece 20, the free end of the welding strip 201 on the test piece 20 is set in contact with the lower surface of the first power-on component 2. When the suction module provided in the present embodiment is working, the suction mechanism 10 sucks the test piece 20; and when the suction mechanism 10 sucks the test piece 20, the free end of the welding strip 201 on the test piece 20 is set in contact with the first power-on component 2; at the same time, the second power-on component 3 is controlled to switch to the first state, at which time the second power-on component 3 is in contact with the first power-on component 2 to power on the test piece 20 (that is, the battery string) sucked by the suction mechanism 10. With such a configuration, the suction mechanism 10 can power on the battery string without moving downward, thereby improving production efficiency and saving production time.
[0089] Furthermore, the suction mechanism 10 includes a frame 101 and a plurality of suction components.
[0090] The mounting base 1 of the power tool is mounted on the frame 101 .
[0091] The plurality of suction assemblies are sequentially arranged at intervals along the length direction of the frame 101. The plurality of suction assemblies can simultaneously suction battery strings.
[0092] It is understandable that, along the length direction of the frame 101, an electrical fixture is installed at both ends of the frame 101, and the second electrical component 3 of the electrical fixture at each end is attached to the first electrical component 2 to clamp the free end of the welding strip 201 at that end.
[0093] Embodiment 3
[0094] See also Figure 3 and Figure 4 , this embodiment provides a string welding machine, which can complete the welding of welding strips and can complete the EL test of battery strings with high test efficiency.
[0095] Specifically, in this embodiment, the string welding machine includes an EL defect detection station and the suction module of the second embodiment, and the suction mechanism 10 of the suction module can be movably disposed at the EL defect detection station.
[0096] When the string welding machine provided in this embodiment performs EL detection on the battery string, the suction mechanism 10 sucks the test piece 20; and when the suction mechanism 10 sucks the test piece 20, the free end of the welding strip 201 on the test piece 20 is attached to the first power-on component 2; at the same time, the second power-on component 3 is controlled to switch to the first state, at which time the second power-on component 3 is attached to the first power-on component 2 to power on the test piece 20 (that is, the battery string) sucked by the suction mechanism 10. With this arrangement, the suction mechanism 10 can power on the battery string without moving downward, thereby improving production efficiency and saving production time.
[0097] After the detection is completed, the second power-on component 3 is controlled to switch to the second state.
[0098] Furthermore, in this embodiment, the stringing machine also includes a welding conveyor belt 30, and a light box 40 is arranged above the welding conveyor belt 30. A stringing knife 50 is arranged at the output end of the welding conveyor belt 30; the next station of the stringing knife 50 is the EL defect detection station. The EL defect detection station includes a rear conveyor belt 60, an EL detector (not shown in the figure), a lower suction mechanism (not shown in the figure) and a suction module, the lower suction mechanism is located above the rear conveyor belt 60 and can be turned over; the suction module is located above the lower suction mechanism, and the suction module can be raised and lowered and can be moved laterally; the EL detector is located beside the rear conveyor belt 60.
[0099] Exemplarily, when the string welding machine is working, the battery cell is laser scribed when it is loaded, and the whole battery cell is cut into two halves of equal size; the two halves are conveyed to the welding conveyor belt 30, and the soldering tape 201 coated with flux is placed on the battery cell, and the soldering tape pressing tool is used to press the soldering tape 201 onto the battery cell, and the welding conveyor belt 30 conveys the battery cell to the bottom of the light box 40, and the infrared lamp in the light box 40 heats the battery cell and the soldering tape 201, thereby welding the soldering tape 201 to the battery cell.
[0100] After the whole string is welded, the string cutting knife 50 cuts the connected longer battery string into several shorter battery strings, and the shorter battery strings are conveyed one by one to the rear conveyor belt 60 and stay accurately at the position to be sucked.
[0101] When a battery string is conveyed to the rear conveyor belt 60 and accurately stays at the position to be sucked, the lower suction mechanism sucks and flips the battery string on the rear conveyor belt 60, and then the suction mechanism 10 of the suction module moves down and sucks the battery string. After the suction mechanism 10 sucks the battery string, it drives the battery string to move horizontally to the top of the EL detector. During the horizontal movement of the suction mechanism 10, the second power-on component 3 is controlled to fit with the first power-on component 2 to power on the battery string sucked by the suction mechanism 10. After the suction mechanism 10 drives the battery string to move horizontally to the top of the EL detector, the EL detector can take a photo of the powered-on battery string for detection.
[0102] After the inspection is completed, the qualified battery strings are transported to the next process for battery string layout, and the unqualified battery strings are placed in the NG material box.
[0103] During the operation of the string welding machine, the battery string can be powered on by the suction mechanism 10 driving the battery string to move horizontally to the top of the EL detector. There is no need for the upper suction mechanism to drive the battery string to move horizontally to the top of the EL detector and then move it down to complete the power-on of the battery string as in the prior art, thereby saving test time and improving production efficiency.
[0104] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.
Claims
1. Power-on tooling, characterized in that: include: A mounting base (1) configured to be mounted on a suction mechanism (10); A first electrical component (2) is fixedly mounted on the mounting seat (1); A second power-on component (3) is movably arranged on the mounting seat (1), and the second power-on component (3) can be moved relative to the mounting seat (1) to switch between a first state and a second state; in the first state, the second power-on component (3) is in contact with the first power-on component (2) to power on the test piece (20) sucked by the sucking mechanism (10); in the second state, the second power-on component (3) is separated from the first power-on component (2).
2. The power-on tooling according to claim 1, characterized in that: The power-on tool further comprises a second power-on component installation assembly (4), wherein the second power-on component installation assembly (4) comprises: A driving member (41) is arranged on the mounting seat (1); The rotating member (42) is hinged to the mounting seat (1), the second power-on member (3) is fixedly mounted on the rotating member (42), and the driving member (41) is capable of driving the rotating member (42) to rotate, so that the rotating member (42) drives the second power-on member (3) to switch between the first state and the second state.
3. The power-on tooling according to claim 2, characterized in that: The driving member (41) comprises: A driving member seat body (411) rotatably disposed on the mounting seat (1); The drive member telescopic shaft (412) is telescopically arranged on the drive member base (411), and the drive member telescopic shaft (412) is connected to the rotating member (42).
4. The power-on tooling according to claim 3, characterized in that: The driving member seat body (411) is provided with a driving member seat body rotating shaft (4111) which is rotatably matched with the mounting seat (1).
5. The power-on tooling according to claim 3, characterized in that: The mounting seat (1) comprises: A transverse plate (11) is configured to be mounted on the suction mechanism (10), and the first upper electrical component (2) is fixedly arranged on the lower surface of the transverse plate (11); An upper mounting frame (12) is arranged on the upper surface of the transverse plate (11), and the driving member seat (411) is rotatably arranged on the upper mounting frame (12); The lower mounting frame (13) is arranged on the lower side of the transverse plate (11) and is staggered with the lower mounting frame (13) in the horizontal direction. The rotating member (42) can be rotatably arranged on the lower mounting frame (13).
6. The power-on tooling according to claim 5, characterized in that: The lower mounting frame (13) is provided with a rotating shaft (14), and the rotating member (42) is rotatably arranged on the rotating shaft (14).
7. The power-on tooling according to any one of claims 2 to 6, characterized in that: The number of the second upper electrical component installation components (4) is at least two, and at least two of the second upper electrical component installation components (4) are arranged at intervals along the length direction of the installation seat (1).
8. The absorption module is characterized in that: include: A suction mechanism (10) capable of sucking a test piece (20); According to the power-on tooling as described in any one of claims 1 to 7, the mounting seat (1) of the power-on tooling is installed on the suction mechanism (10), and when the suction mechanism (10) sucks the test piece (20), the free end of the welding strip (201) on the test piece (20) is arranged in contact with the first power-on component (2).
9. The absorption module according to claim 8, characterized in that: The suction mechanism (10) comprises: A frame (101), wherein the mounting seat (1) of the power-on tooling is mounted on the frame (101); A plurality of suction components are arranged in sequence and at intervals along the length direction of the frame (101).
10. A string welding machine, characterized in that: The string welding machine comprises: EL defect detection station; According to the suction module as claimed in claim 8 or 9, the suction mechanism (10) of the suction module can be movably arranged at the EL defect detection station.
